1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
187
188
189
190
191
192
193
194
195
196
197
198
199
200
201
202
203
204
205
206
207
208
209
210
211
212
213
214
215
216
217
218
219
220
221
222
223
224
225
226
227
228
229
230
231
232
233
234
235
236
237
238
239
240
241
242
243
244
245
246
247
248
249
250
251
252
253
254
255
256
257
258
259
260
261
262
263
264
265
266
267
268
269
270
271
272
273
274
275
276
277
278
279
280
281
282
283
284
285
286
287
288
289
290
291
292
293
294
295
296
297
298
299
300
301
302
303
304
305
306
307
308
309
310
311
312
313
314
315
316
317
318
319
320
321
322
323
324
325
326
327
328
329
330
331
332
333
334
335
336
337
338
339
340
341
342
343
344
345
346
347
348
349
350
351
352
353
354
355
356
357
358
359
360
361
362
363
364
365
366
367
368
369
370
371
372
373
374
375
376
377
378
379
380
381
382
383
384
385
386
387
388
389
390
391
392
393
394
395
396
397
398
399
400
401
402
403
404
405
406
407
408
409
410
411
412
413
414
415
416
417
418
419
420
421
422
423
424
425
426
427
428
429
430
431
432
433
434
435
436
437
438
439
440
441
442
443
444
445
446
447
448
449
450
451
452
453
454
455
456
457
458
459
460
461
462
463
464
465
466
467
468
469
470
471
472
473
474
475
476
477
478
479
480
481
482
483
484
485
486
487
488
489
490
491
492
493
494
495
496
497
498
499
500
501
502
503
504
505
506
507
508
509
510
511
512
513
514
515
516
517
518
519
520
521
522
523
524
525
526
527
528
529
530
531
532
533
534
535
536
537
538
539
540
541
542
543
544
545
546
547
548
549
550
551
552
553
554
555
556
557
558
559
560
561
562
563
564
565
566
567
568
569
570
571
572
573
574
575
576
577
578
579
580
581
582
583
584
585
586
587
588
589
590
591
592
593
594
595
596
597
598
599
600
601
602
603
604
605
606
607
608
609
610
611
612
613
614
615
616
617
618
619
620
621
622
623
624
625
626
627
628
629
630
631
632
633
634
635
636
637
638
639
640
641
642
643
644
645
646
647
648
649
650
651
652
653
654
655
656
657
658
659
660
661
662
663
664
665
666
667
668
669
670
671
672
673
674
675
676
677
678
679
680
681
682
683
684
685
686
687
688
689
690
691
692
693
694
695
696
697
698
699
700
701
702
703
704
705
706
707
708
709
710
711
712
713
714
715
716
717
718
719
720
721
722
723
724
725
726
727
728
729
730
731
732
733
734
735
736
737
738
739
740
741
742
743
744
745
746
747
748
749
750
751
752
753
754
755
756
757
758
759
760
761
762
763
764
765
766
767
768
769
770
771
772
773
774
775
776
777
778
779
780
781
782
783
784
785
786
787
788
789
790
791
792
793
794
795
796
797
798
799
800
801
802
803
804
805
806
807
808
809
810
811
812
813
814
815
816
817
818
819
820
821
822
823
824
825
826
827
828
829
830
831
832
833
834
835
836
837
838
839
840
841
842
843
844
845
846
847
848
849
850
851
852
853
854
855
856
857
858
859
860
861
862
863
864
865
866
867
868
869
870
871
872
873
874
875
876
877
878
879
880
881
882
883
884
885
886
887
888
889
890
891
892
893
894
895
896
897
898
899
900
901
902
903
904
905
906
907
908
909
910
911
912
913
914
915
916
917
918
919
920
921
922
923
924
925
926
927
928
929
930
931
932
933
934
935
936
937
938
939
940
941
942
943
944
945
946
947
948
949
950
951
952
953
954
955
956
957
958
959
960
961
962
963
964
965
966
967
968
969
970
971
972
973
974
975
976
977
978
979
980
981
982
983
984
985
986
987
988
989
990
991
992
993
994
995
996
997
998
999
1000
1001
1002
1003
1004
1005
1006
1007
1008
1009
1010
1011
1012
1013
1014
1015
1016
1017
1018
1019
1020
1021
1022
1023
1024
1025
1026
1027
1028
1029
1030
1031
1032
1033
1034
1035
1036
1037
1038
1039
1040
1041
1042
1043
1044
1045
1046
1047
1048
1049
1050
1051
1052
1053
1054
1055
1056
1057
1058
1059
1060
1061
1062
1063
1064
1065
1066
1067
1068
1069
1070
1071
1072
1073
1074
1075
1076
1077
1078
1079
1080
1081
1082
1083
1084
1085
1086
1087
1088
1089
1090
1091
1092
1093
1094
1095
1096
1097
1098
1099
1100
1101
1102
1103
1104
1105
1106
1107
1108
1109
1110
1111
1112
1113
1114
1115
1116
1117
1118
1119
1120
1121
1122
1123
1124
1125
1126
1127
1128
1129
1130
1131
1132
1133
1134
1135
1136
1137
1138
1139
1140
1141
1142
1143
1144
1145
1146
1147
1148
1149
1150
1151
1152
1153
1154
1155
1156
1157
1158
1159
1160
1161
1162
1163
1164
1165
1166
1167
1168
1169
1170
1171
1172
1173
1174
1175
1176
1177
1178
1179
1180
1181
1182
1183
1184
1185
1186
1187
1188
1189
1190
1191
1192
1193
1194
1195
1196
1197
1198
1199
1200
1201
1202
1203
1204
1205
1206
1207
1208
1209
1210
1211
1212
1213
1214
1215
1216
1217
1218
1219
1220
1221
1222
1223
1224
1225
1226
1227
1228
1229
1230
1231
1232
1233
1234
1235
1236
1237
1238
1239
1240
1241
1242
1243
1244
1245
1246
1247
1248
1249
1250
1251
1252
1253
1254
1255
1256
1257
1258
1259
1260
1261
1262
1263
1264
1265
1266
1267
1268
1269
1270
1271
1272
1273
1274
1275
1276
1277
1278
1279
1280
1281
1282
1283
1284
1285
1286
1287
1288
1289
1290
1291
1292
1293
1294
1295
1296
1297
1298
1299
1300
1301
1302
1303
1304
1305
1306
1307
1308
1309
1310
1311
1312
1313
1314
1315
1316
1317
1318
1319
1320
1321
1322
1323
1324
1325
1326
1327
1328
1329
1330
1331
1332
1333
1334
1335
1336
1337
1338
1339
1340
1341
1342
1343
1344
1345
1346
1347
1348
1349
1350
1351
1352
1353
1354
1355
1356
1357
1358
1359
1360
1361
1362
1363
1364
1365
1366
1367
1368
1369
1370
1371
1372
1373
1374
1375
1376
1377
1378
1379
1380
1381
1382
1383
1384
1385
1386
1387
1388
1389
1390
1391
1392
1393
1394
1395
1396
1397
1398
1399
1400
1401
1402
1403
1404
1405
1406
1407
1408
1409
1410
1411
1412
1413
1414
1415
1416
1417
1418
1419
1420
1421
1422
1423
1424
1425
1426
1427
1428
1429
1430
1431
1432
1433
1434
1435
1436
1437
1438
1439
1440
1441
1442
1443
1444
1445
1446
1447
1448
1449
1450
1451
1452
1453
1454
1455
1456
1457
1458
1459
1460
1461
1462
1463
1464
1465
1466
1467
1468
1469
1470
1471
1472
1473
1474
1475
1476
1477
1478
1479
1480
1481
1482
1483
1484
1485
1486
1487
1488
1489
1490
1491
1492
1493
1494
1495
1496
1497
1498
1499
1500
1501
1502
1503
1504
1505
1506
1507
1508
1509
1510
1511
1512
1513
1514
1515
1516
1517
1518
1519
1520
1521
1522
1523
1524
1525
1526
1527
1528
1529
1530
1531
1532
1533
1534
1535
1536
1537
1538
1539
1540
1541
1542
1543
1544
1545
1546
1547
1548
1549
1550
1551
1552
1553
1554
1555
1556
1557
1558
1559
1560
1561
1562
1563
1564
1565
1566
1567
1568
1569
1570
1571
1572
1573
1574
1575
1576
1577
1578
1579
1580
1581
1582
1583
1584
1585
1586
1587
1588
1589
1590
1591
1592
1593
1594
1595
1596
1597
1598
1599
1600
1601
1602
1603
1604
1605
1606
1607
1608
1609
1610
1611
1612
1613
1614
1615
1616
1617
1618
1619
1620
1621
1622
1623
1624
1625
1626
1627
1628
1629
1630
1631
1632
1633
1634
1635
1636
1637
1638
1639
1640
1641
1642
1643
1644
1645
1646
1647
1648
1649
1650
1651
1652
1653
1654
1655
1656
1657
1658
1659
1660
1661
1662
1663
1664
1665
1666
1667
1668
1669
1670
1671
1672
1673
1674
1675
1676
1677
1678
1679
1680
1681
1682
1683
1684
1685
1686
1687
1688
1689
1690
1691
1692
1693
1694
1695
1696
1697
1698
1699
1700
1701
1702
1703
1704
1705
1706
1707
1708
1709
1710
1711
1712
1713
1714
1715
1716
1717
1718
1719
1720
1721
1722
1723
1724
1725
1726
1727
1728
1729
1730
1731
1732
1733
1734
1735
1736
1737
1738
1739
1740
1741
1742
1743
1744
1745
1746
1747
1748
1749
1750
1751
1752
1753
1754
1755
1756
1757
1758
1759
1760
1761
1762
1763
1764
1765
1766
1767
1768
1769
1770
1771
1772
1773
1774
1775
1776
1777
1778
1779
1780
1781
1782
1783
1784
1785
1786
1787
1788
1789
1790
1791
1792
1793
1794
1795
1796
1797
1798
1799
1800
1801
1802
1803
1804
1805
1806
1807
1808
1809
1810
1811
1812
1813
1814
1815
1816
1817
1818
1819
1820
1821
1822
1823
1824
1825
1826
1827
1828
1829
1830
1831
1832
1833
1834
1835
1836
1837
1838
1839
1840
1841
1842
1843
1844
1845
1846
1847
1848
1849
1850
1851
1852
1853
1854
1855
1856
1857
1858
1859
1860
1861
1862
1863
1864
1865
1866
1867
1868
1869
1870
1871
1872
1873
1874
1875
1876
1877
1878
1879
1880
1881
1882
1883
1884
1885
1886
1887
1888
1889
1890
1891
1892
1893
1894
1895
1896
1897
1898
1899
1900
1901
1902
1903
1904
1905
1906
1907
1908
1909
1910
1911
1912
1913
1914
1915
1916
1917
1918
1919
1920
1921
1922
1923
1924
1925
1926
1927
1928
1929
1930
1931
1932
1933
1934
1935
1936
1937
1938
1939
1940
1941
1942
1943
1944
1945
1946
1947
1948
1949
1950
1951
1952
1953
1954
1955
1956
1957
1958
1959
1960
1961
1962
1963
1964
1965
1966
1967
1968
1969
1970
1971
1972
1973
1974
1975
1976
1977
1978
1979
1980
1981
1982
1983
1984
1985
1986
1987
1988
1989
1990
1991
1992
1993
1994
1995
1996
1997
1998
1999
2000
2001
2002
2003
2004
2005
2006
2007
2008
2009
2010
2011
2012
2013
2014
2015
2016
2017
2018
2019
2020
2021
2022
2023
2024
2025
2026
2027
2028
2029
2030
2031
2032
2033
2034
2035
2036
2037
2038
2039
2040
2041
2042
2043
2044
2045
2046
2047
2048
2049
2050
2051
2052
2053
2054
2055
2056
2057
2058
2059
2060
2061
2062
2063
2064
2065
2066
2067
2068
2069
2070
2071
2072
2073
2074
2075
2076
2077
2078
2079
2080
2081
2082
2083
2084
2085
2086
2087
2088
2089
2090
2091
2092
2093
2094
2095
2096
2097
2098
2099
2100
2101
2102
2103
2104
2105
2106
2107
2108
2109
2110
2111
2112
2113
2114
2115
2116
2117
2118
2119
2120
2121
2122
2123
2124
2125
2126
2127
2128
2129
2130
2131
2132
2133
2134
2135
2136
2137
2138
2139
2140
2141
2142
2143
2144
2145
2146
2147
2148
2149
2150
2151
2152
2153
2154
2155
2156
2157
2158
2159
2160
2161
2162
2163
2164
2165
2166
2167
2168
2169
2170
2171
2172
2173
2174
2175
2176
2177
2178
2179
2180
2181
2182
2183
2184
2185
2186
2187
2188
2189
2190
2191
2192
2193
2194
2195
2196
2197
2198
2199
2200
2201
2202
2203
2204
2205
2206
2207
2208
2209
2210
2211
2212
2213
2214
2215
2216
2217
2218
2219
2220
2221
2222
2223
2224
2225
2226
2227
2228
2229
2230
2231
2232
2233
2234
2235
2236
2237
2238
2239
2240
2241
2242
2243
2244
2245
2246
2247
2248
2249
2250
2251
2252
2253
2254
2255
2256
2257
2258
2259
2260
2261
2262
2263
2264
2265
2266
2267
2268
2269
2270
2271
2272
2273
2274
2275
2276
2277
2278
2279
2280
2281
2282
2283
2284
2285
2286
2287
2288
2289
2290
2291
2292
2293
2294
2295
2296
2297
2298
2299
2300
2301
2302
2303
2304
2305
2306
2307
2308
2309
2310
2311
2312
2313
2314
2315
2316
2317
2318
2319
2320
2321
2322
2323
2324
2325
2326
2327
2328
2329
2330
2331
2332
2333
2334
2335
2336
2337
2338
2339
2340
2341
2342
2343
2344
2345
2346
2347
2348
2349
2350
2351
2352
2353
2354
2355
2356
2357
2358
2359
2360
2361
2362
2363
2364
2365
2366
2367
2368
2369
2370
2371
2372
2373
2374
2375
2376
2377
2378
2379
2380
2381
2382
2383
2384
2385
2386
2387
2388
2389
2390
2391
2392
2393
2394
2395
2396
2397
2398
2399
2400
2401
2402
2403
2404
2405
2406
2407
2408
2409
2410
2411
2412
2413
2414
2415
2416
2417
2418
2419
2420
2421
2422
2423
2424
2425
2426
2427
2428
2429
2430
2431
2432
2433
2434
2435
2436
2437
2438
2439
2440
2441
2442
2443
2444
2445
2446
2447
2448
2449
2450
2451
2452
2453
2454
2455
2456
2457
2458
2459
2460
2461
2462
2463
2464
2465
2466
2467
2468
2469
2470
2471
2472
2473
2474
2475
2476
2477
2478
2479
2480
2481
2482
2483
2484
2485
2486
2487
2488
2489
2490
2491
2492
2493
2494
2495
2496
2497
2498
2499
2500
2501
2502
2503
2504
2505
2506
2507
2508
2509
2510
2511
2512
2513
2514
2515
2516
2517
2518
2519
2520
2521
2522
2523
2524
2525
2526
2527
2528
2529
2530
2531
2532
2533
2534
2535
2536
2537
2538
2539
2540
2541
2542
2543
2544
2545
2546
2547
2548
2549
2550
2551
2552
2553
2554
2555
2556
2557
2558
2559
2560
2561
2562
2563
2564
2565
2566
2567
2568
2569
2570
2571
2572
2573
2574
2575
2576
2577
2578
2579
2580
2581
2582
2583
2584
2585
2586
2587
2588
2589
2590
2591
2592
2593
2594
2595
2596
2597
2598
2599
2600
2601
2602
2603
2604
2605
2606
2607
2608
2609
2610
2611
2612
2613
2614
2615
2616
2617
2618
2619
2620
2621
2622
2623
2624
2625
2626
2627
2628
2629
2630
2631
2632
2633
2634
2635
2636
2637
2638
2639
2640
2641
2642
2643
2644
2645
2646
2647
2648
2649
2650
2651
2652
2653
2654
2655
2656
2657
2658
2659
2660
2661
2662
2663
2664
2665
2666
2667
2668
2669
2670
2671
2672
2673
2674
2675
2676
2677
2678
2679
2680
2681
2682
2683
2684
2685
2686
2687
2688
2689
2690
2691
2692
2693
2694
2695
2696
2697
2698
2699
2700
2701
2702
2703
2704
2705
2706
2707
2708
2709
2710
2711
2712
2713
2714
2715
2716
2717
2718
2719
2720
2721
2722
2723
2724
2725
2726
2727
2728
2729
2730
2731
2732
2733
2734
2735
2736
2737
2738
2739
2740
2741
2742
2743
2744
2745
2746
2747
2748
2749
2750
2751
2752
2753
2754
2755
2756
2757
2758
2759
2760
2761
2762
2763
2764
2765
2766
2767
2768
2769
2770
2771
2772
2773
2774
2775
2776
2777
2778
2779
2780
2781
2782
2783
2784
2785
2786
2787
2788
2789
2790
2791
2792
2793
2794
2795
2796
2797
2798
2799
2800
2801
2802
2803
2804
2805
2806
2807
2808
2809
2810
2811
2812
2813
2814
2815
2816
2817
2818
2819
2820
2821
2822
2823
2824
2825
2826
2827
2828
2829
2830
2831
2832
2833
2834
2835
2836
2837
2838
2839
2840
2841
2842
2843
2844
2845
2846
2847
2848
2849
2850
2851
2852
2853
2854
2855
2856
2857
2858
2859
2860
2861
2862
2863
2864
2865
2866
2867
2868
2869
2870
2871
2872
2873
2874
2875
2876
2877
2878
2879
2880
2881
2882
2883
2884
2885
2886
2887
2888
2889
2890
2891
2892
2893
2894
2895
2896
2897
2898
2899
2900
2901
2902
2903
2904
2905
2906
2907
2908
2909
2910
2911
2912
2913
2914
2915
2916
2917
2918
2919
2920
2921
2922
2923
2924
2925
2926
2927
2928
2929
2930
2931
2932
2933
2934
2935
2936
2937
2938
2939
2940
2941
2942
2943
2944
2945
2946
2947
2948
2949
2950
2951
2952
2953
2954
2955
2956
2957
2958
2959
2960
2961
2962
2963
2964
2965
2966
2967
2968
2969
2970
2971
2972
2973
2974
2975
2976
2977
2978
2979
2980
2981
2982
2983
2984
2985
2986
2987
2988
2989
2990
2991
2992
2993
2994
2995
2996
2997
2998
2999
3000
3001
3002
3003
3004
3005
3006
3007
3008
3009
3010
3011
3012
3013
3014
3015
3016
3017
3018
3019
3020
3021
3022
3023
3024
3025
3026
3027
3028
3029
3030
3031
3032
3033
3034
3035
3036
3037
3038
3039
3040
3041
3042
3043
3044
3045
3046
3047
3048
3049
3050
3051
3052
3053
3054
3055
3056
3057
3058
3059
3060
3061
3062
3063
3064
3065
3066
3067
3068
3069
3070
3071
3072
3073
3074
3075
3076
3077
3078
3079
3080
3081
3082
3083
3084
3085
3086
3087
3088
3089
3090
3091
3092
3093
3094
3095
3096
3097
3098
3099
3100
3101
3102
3103
3104
3105
3106
3107
3108
3109
3110
3111
3112
3113
3114
3115
3116
3117
3118
3119
3120
3121
3122
3123
3124
3125
3126
3127
3128
3129
3130
3131
3132
3133
3134
3135
3136
3137
3138
3139
3140
3141
3142
3143
3144
3145
3146
3147
3148
3149
3150
3151
3152
3153
3154
3155
3156
3157
3158
3159
3160
3161
3162
3163
3164
3165
3166
3167
3168
3169
3170
3171
3172
3173
3174
3175
3176
3177
3178
3179
3180
3181
3182
3183
3184
3185
3186
3187
3188
3189
3190
3191
3192
3193
3194
3195
3196
3197
3198
3199
3200
3201
3202
3203
3204
3205
3206
3207
3208
3209
3210
3211
3212
3213
3214
3215
3216
3217
3218
3219
3220
3221
3222
3223
3224
3225
3226
3227
3228
3229
3230
3231
3232
3233
3234
3235
3236
3237
3238
3239
3240
3241
3242
3243
3244
3245
3246
3247
3248
3249
3250
3251
3252
3253
3254
3255
3256
3257
3258
3259
3260
3261
3262
3263
3264
3265
3266
3267
3268
3269
3270
3271
3272
3273
3274
3275
3276
3277
3278
3279
3280
3281
3282
3283
3284
3285
3286
3287
3288
3289
3290
3291
3292
3293
3294
3295
3296
3297
3298
3299
3300
3301
3302
3303
3304
3305
3306
3307
3308
3309
3310
3311
3312
3313
3314
3315
3316
3317
3318
3319
3320
3321
3322
3323
3324
3325
3326
3327
3328
3329
3330
3331
3332
3333
3334
3335
3336
3337
3338
3339
3340
3341
3342
3343
3344
3345
3346
3347
3348
3349
3350
3351
3352
3353
3354
3355
3356
3357
3358
3359
3360
3361
3362
3363
3364
3365
3366
3367
3368
3369
3370
3371
3372
3373
3374
3375
3376
3377
3378
3379
3380
3381
3382
3383
3384
3385
3386
3387
3388
3389
3390
3391
3392
3393
3394
3395
3396
3397
3398
3399
3400
3401
3402
3403
3404
3405
3406
3407
3408
3409
3410
3411
3412
3413
3414
3415
3416
3417
3418
3419
3420
3421
3422
3423
3424
3425
3426
3427
3428
3429
3430
3431
3432
3433
3434
3435
3436
3437
3438
3439
3440
3441
3442
3443
3444
3445
3446
3447
3448
3449
3450
3451
3452
3453
3454
3455
3456
3457
3458
3459
3460
3461
3462
3463
3464
3465
3466
3467
3468
3469
3470
3471
3472
3473
3474
3475
3476
3477
3478
3479
3480
3481
3482
3483
3484
3485
3486
3487
3488
3489
3490
3491
3492
3493
3494
3495
3496
3497
3498
3499
3500
3501
3502
3503
3504
3505
3506
3507
3508
3509
3510
3511
3512
3513
3514
3515
3516
3517
3518
3519
3520
3521
3522
3523
3524
3525
3526
3527
3528
3529
3530
3531
3532
3533
3534
3535
3536
3537
3538
3539
3540
3541
3542
3543
3544
3545
3546
3547
3548
3549
3550
3551
3552
3553
3554
3555
3556
3557
3558
3559
3560
3561
3562
3563
3564
3565
3566
3567
3568
3569
3570
3571
3572
3573
3574
3575
3576
3577
3578
3579
3580
3581
3582
3583
3584
3585
3586
3587
3588
3589
3590
3591
3592
3593
3594
3595
3596
3597
3598
3599
3600
3601
3602
3603
3604
3605
3606
3607
3608
3609
3610
3611
3612
3613
3614
3615
3616
3617
3618
3619
3620
3621
3622
3623
3624
3625
3626
3627
3628
3629
3630
3631
3632
3633
3634
3635
3636
3637
3638
3639
3640
3641
3642
3643
3644
3645
3646
3647
3648
3649
3650
3651
3652
3653
3654
3655
3656
3657
3658
3659
3660
3661
3662
3663
3664
3665
3666
3667
3668
3669
3670
3671
3672
3673
3674
3675
3676
3677
3678
3679
3680
3681
3682
3683
3684
3685
3686
3687
3688
3689
3690
3691
3692
3693
3694
3695
3696
3697
3698
3699
3700
3701
3702
3703
3704
3705
3706
3707
3708
3709
3710
3711
3712
3713
3714
3715
3716
3717
3718
3719
3720
3721
3722
3723
3724
3725
3726
3727
3728
3729
3730
3731
3732
3733
3734
3735
3736
3737
3738
3739
3740
3741
3742
3743
3744
3745
3746
3747
3748
3749
3750
3751
3752
3753
3754
3755
3756
3757
3758
3759
3760
3761
3762
3763
3764
3765
3766
3767
3768
3769
3770
3771
3772
3773
3774
3775
3776
3777
3778
3779
3780
3781
3782
3783
3784
3785
3786
3787
3788
3789
3790
3791
3792
3793
3794
3795
3796
3797
3798
3799
3800
3801
3802
3803
3804
3805
3806
3807
3808
3809
3810
3811
3812
3813
3814
3815
3816
3817
3818
3819
3820
3821
3822
3823
3824
3825
3826
3827
3828
3829
3830
3831
3832
3833
3834
3835
3836
3837
3838
3839
3840
3841
3842
3843
3844
3845
3846
3847
3848
3849
3850
3851
3852
3853
3854
3855
3856
3857
3858
3859
3860
3861
3862
3863
3864
3865
3866
3867
3868
3869
3870
3871
3872
3873
3874
3875
3876
3877
3878
3879
3880
3881
3882
3883
3884
3885
3886
3887
3888
3889
3890
3891
3892
3893
3894
3895
3896
3897
3898
3899
3900
3901
3902
3903
3904
3905
3906
3907
3908
3909
3910
3911
3912
3913
3914
3915
3916
3917
3918
3919
3920
3921
3922
3923
3924
3925
3926
3927
3928
3929
3930
3931
3932
3933
3934
3935
3936
3937
3938
3939
3940
3941
3942
3943
3944
3945
3946
3947
3948
3949
3950
3951
3952
3953
3954
3955
3956
3957
3958
3959
3960
3961
3962
3963
3964
3965
3966
3967
3968
3969
3970
3971
3972
3973
3974
3975
3976
3977
3978
3979
3980
3981
3982
3983
3984
3985
3986
3987
3988
3989
3990
3991
3992
3993
3994
3995
3996
3997
3998
3999
4000
4001
4002
4003
4004
4005
4006
4007
4008
4009
4010
4011
4012
4013
4014
4015
4016
4017
4018
4019
4020
4021
4022
4023
4024
4025
4026
4027
4028
4029
4030
4031
4032
4033
4034
4035
4036
4037
4038
4039
4040
4041
4042
4043
4044
4045
4046
4047
4048
4049
4050
4051
4052
4053
4054
4055
4056
4057
4058
4059
4060
4061
4062
4063
4064
4065
4066
4067
4068
4069
4070
4071
4072
4073
4074
4075
4076
4077
4078
4079
4080
4081
4082
4083
4084
4085
4086
4087
4088
4089
4090
4091
4092
4093
4094
4095
4096
4097
4098
4099
4100
4101
4102
4103
4104
4105
4106
4107
4108
4109
4110
4111
4112
4113
4114
4115
4116
4117
4118
4119
4120
4121
4122
4123
4124
4125
4126
4127
4128
4129
4130
4131
4132
4133
4134
4135
4136
4137
4138
4139
4140
4141
4142
4143
4144
4145
4146
4147
4148
4149
4150
4151
4152
4153
4154
4155
4156
4157
4158
4159
4160
4161
4162
4163
4164
4165
4166
4167
4168
4169
4170
4171
4172
4173
4174
4175
4176
4177
4178
4179
4180
4181
4182
4183
4184
4185
4186
4187
4188
4189
4190
4191
4192
4193
4194
4195
4196
4197
4198
4199
4200
4201
4202
4203
4204
4205
4206
4207
4208
4209
4210
4211
4212
4213
4214
4215
4216
4217
4218
4219
4220
4221
4222
4223
4224
4225
4226
4227
4228
4229
4230
4231
4232
4233
4234
4235
4236
4237
4238
4239
4240
4241
4242
4243
4244
4245
4246
4247
4248
4249
4250
4251
4252
4253
4254
4255
4256
4257
4258
4259
4260
4261
4262
4263
4264
4265
4266
4267
4268
4269
4270
4271
4272
4273
4274
4275
4276
4277
4278
4279
4280
4281
4282
4283
4284
4285
4286
4287
4288
4289
4290
4291
4292
4293
4294
4295
4296
4297
4298
4299
4300
4301
4302
4303
4304
4305
4306
4307
4308
4309
4310
4311
4312
4313
4314
4315
4316
4317
4318
4319
4320
4321
4322
4323
4324
4325
4326
4327
4328
4329
4330
4331
4332
4333
4334
4335
4336
4337
4338
4339
4340
4341
4342
4343
4344
4345
4346
4347
4348
4349
4350
4351
4352
4353
4354
4355
4356
4357
4358
4359
4360
4361
4362
4363
4364
4365
4366
4367
4368
4369
4370
4371
4372
4373
4374
4375
4376
4377
4378
4379
4380
4381
4382
4383
4384
4385
4386
4387
4388
4389
4390
4391
4392
4393
4394
4395
4396
4397
4398
4399
4400
4401
4402
4403
4404
4405
4406
4407
4408
4409
4410
4411
4412
4413
4414
4415
4416
4417
4418
4419
4420
4421
4422
4423
4424
4425
4426
4427
4428
4429
4430
4431
4432
4433
4434
4435
4436
4437
4438
4439
4440
4441
4442
4443
4444
4445
4446
4447
4448
4449
4450
4451
4452
4453
4454
4455
4456
4457
4458
4459
4460
4461
4462
4463
4464
4465
4466
4467
4468
4469
4470
4471
4472
4473
4474
4475
4476
4477
4478
4479
4480
4481
4482
4483
4484
4485
4486
4487
4488
4489
4490
4491
4492
4493
4494
4495
4496
4497
4498
4499
4500
4501
4502
4503
4504
4505
4506
4507
4508
4509
4510
4511
4512
4513
4514
4515
4516
4517
4518
4519
4520
4521
4522
4523
4524
4525
4526
4527
4528
4529
4530
4531
4532
4533
4534
4535
4536
4537
4538
4539
4540
4541
4542
4543
4544
4545
4546
4547
4548
4549
4550
4551
4552
4553
4554
4555
4556
4557
4558
4559
4560
4561
4562
4563
4564
4565
4566
4567
4568
4569
4570
4571
4572
4573
4574
4575
4576
4577
4578
4579
4580
4581
4582
4583
4584
4585
4586
4587
4588
4589
4590
4591
4592
4593
4594
4595
4596
4597
4598
4599
4600
4601
4602
4603
4604
4605
4606
4607
4608
4609
4610
4611
4612
4613
4614
4615
4616
4617
4618
4619
4620
4621
4622
4623
4624
4625
4626
4627
4628
4629
4630
4631
4632
4633
4634
4635
4636
4637
4638
4639
4640
4641
4642
4643
4644
4645
4646
4647
4648
4649
4650
4651
4652
4653
4654
4655
4656
4657
4658
4659
4660
4661
4662
4663
4664
4665
4666
4667
4668
4669
4670
4671
4672
4673
4674
4675
4676
4677
4678
4679
4680
4681
4682
4683
4684
4685
4686
4687
4688
4689
4690
4691
4692
4693
4694
4695
4696
4697
4698
4699
4700
4701
4702
4703
4704
4705
4706
4707
4708
4709
4710
4711
4712
4713
4714
4715
4716
4717
4718
4719
4720
4721
4722
4723
4724
4725
4726
4727
4728
4729
4730
4731
4732
4733
4734
4735
4736
4737
4738
4739
4740
4741
4742
4743
4744
4745
4746
4747
4748
4749
4750
4751
4752
4753
4754
4755
4756
4757
4758
4759
4760
4761
4762
4763
4764
4765
4766
4767
4768
4769
4770
4771
4772
4773
4774
4775
4776
4777
4778
4779
4780
4781
4782
4783
4784
4785
4786
4787
4788
4789
4790
4791
4792
4793
4794
4795
4796
4797
4798
4799
4800
4801
4802
4803
4804
4805
4806
4807
4808
4809
4810
4811
4812
4813
4814
4815
4816
4817
4818
4819
4820
4821
4822
4823
4824
4825
4826
4827
4828
4829
4830
4831
4832
4833
4834
4835
4836
4837
4838
4839
4840
4841
4842
4843
4844
4845
4846
4847
4848
4849
4850
4851
4852
4853
4854
4855
4856
4857
4858
4859
4860
4861
4862
4863
4864
4865
4866
4867
4868
4869
4870
4871
4872
4873
4874
4875
4876
4877
4878
4879
4880
4881
4882
4883
4884
4885
4886
4887
4888
4889
4890
4891
4892
4893
4894
4895
4896
4897
4898
4899
4900
4901
4902
4903
4904
4905
4906
4907
4908
4909
4910
4911
4912
4913
4914
4915
4916
4917
4918
4919
4920
4921
4922
4923
4924
4925
4926
4927
4928
4929
4930
4931
4932
4933
4934
4935
4936
4937
4938
4939
4940
4941
4942
4943
4944
4945
4946
4947
4948
4949
4950
4951
4952
4953
4954
4955
4956
4957
4958
4959
4960
4961
4962
4963
4964
4965
4966
4967
4968
4969
4970
4971
4972
4973
4974
4975
4976
4977
4978
4979
4980
4981
4982
4983
4984
4985
4986
4987
4988
4989
4990
4991
4992
4993
4994
4995
4996
4997
4998
4999
5000
5001
5002
5003
5004
5005
5006
5007
5008
5009
5010
5011
5012
5013
5014
5015
5016
5017
5018
5019
5020
5021
5022
5023
5024
5025
5026
5027
5028
5029
5030
5031
5032
5033
5034
5035
5036
5037
5038
5039
5040
5041
5042
5043
5044
5045
5046
5047
5048
5049
5050
5051
5052
5053
5054
5055
5056
5057
5058
5059
5060
5061
5062
5063
5064
5065
5066
5067
5068
5069
5070
5071
5072
5073
5074
5075
5076
5077
5078
5079
5080
5081
5082
5083
5084
5085
5086
5087
5088
5089
5090
5091
5092
5093
5094
5095
5096
5097
5098
5099
5100
5101
5102
5103
5104
5105
5106
5107
5108
5109
5110
5111
5112
5113
5114
5115
5116
5117
5118
5119
5120
5121
5122
5123
5124
5125
5126
5127
5128
5129
5130
5131
5132
5133
5134
5135
5136
5137
5138
5139
5140
5141
5142
5143
5144
5145
5146
5147
5148
5149
5150
5151
5152
5153
5154
5155
5156
5157
5158
5159
5160
5161
5162
5163
5164
5165
5166
5167
5168
5169
5170
5171
5172
5173
5174
5175
5176
5177
5178
5179
5180
5181
5182
5183
5184
5185
5186
5187
5188
5189
5190
5191
5192
5193
5194
5195
5196
5197
5198
5199
5200
5201
5202
5203
5204
5205
5206
5207
5208
5209
5210
5211
5212
5213
5214
5215
5216
5217
5218
5219
5220
5221
5222
5223
5224
5225
5226
5227
5228
5229
5230
5231
5232
5233
5234
5235
5236
5237
5238
5239
5240
5241
5242
5243
5244
5245
5246
5247
5248
5249
5250
5251
5252
5253
5254
5255
5256
5257
5258
5259
5260
5261
5262
5263
5264
5265
5266
5267
5268
5269
5270
5271
5272
5273
5274
5275
5276
5277
5278
5279
5280
5281
5282
5283
5284
5285
5286
5287
5288
5289
5290
5291
5292
5293
5294
5295
5296
5297
5298
5299
5300
5301
5302
5303
5304
5305
5306
5307
5308
5309
5310
5311
5312
5313
5314
5315
5316
5317
5318
5319
5320
5321
5322
5323
5324
5325
5326
5327
5328
5329
5330
5331
5332
5333
5334
5335
5336
5337
5338
5339
5340
5341
5342
5343
5344
5345
5346
5347
5348
5349
5350
5351
5352
5353
5354
5355
5356
5357
5358
5359
5360
5361
5362
5363
5364
5365
5366
5367
5368
5369
5370
5371
5372
5373
5374
5375
5376
5377
5378
5379
5380
5381
5382
5383
5384
5385
5386
5387
5388
5389
5390
5391
5392
5393
5394
5395
5396
5397
5398
5399
5400
5401
5402
5403
5404
5405
5406
5407
5408
5409
5410
5411
5412
5413
5414
5415
5416
5417
5418
5419
5420
5421
5422
5423
5424
5425
5426
5427
5428
5429
5430
5431
5432
5433
5434
5435
5436
5437
5438
5439
5440
5441
5442
5443
5444
5445
5446
5447
5448
5449
5450
5451
5452
5453
5454
5455
5456
5457
5458
5459
5460
5461
5462
5463
5464
5465
5466
5467
5468
5469
5470
5471
5472
5473
5474
5475
5476
5477
5478
5479
5480
5481
5482
5483
5484
5485
5486
5487
5488
5489
5490
5491
5492
5493
5494
5495
5496
5497
5498
5499
5500
5501
5502
5503
5504
5505
5506
5507
5508
5509
5510
5511
5512
5513
5514
5515
5516
5517
5518
5519
5520
5521
5522
5523
5524
5525
5526
5527
5528
5529
5530
5531
5532
5533
5534
5535
5536
5537
5538
5539
5540
5541
5542
5543
5544
5545
5546
5547
5548
5549
5550
5551
5552
5553
5554
5555
5556
5557
5558
5559
5560
5561
5562
5563
5564
5565
5566
5567
5568
5569
5570
5571
5572
5573
5574
5575
5576
5577
5578
5579
5580
5581
5582
5583
5584
5585
5586
5587
5588
5589
5590
5591
5592
5593
5594
5595
5596
5597
5598
5599
5600
5601
5602
5603
5604
5605
5606
5607
5608
5609
5610
5611
5612
5613
5614
5615
5616
5617
5618
5619
5620
5621
5622
5623
5624
5625
5626
5627
5628
5629
5630
5631
5632
5633
5634
5635
5636
5637
5638
5639
5640
5641
5642
5643
5644
5645
5646
5647
5648
5649
5650
5651
5652
5653
5654
5655
5656
5657
5658
5659
5660
5661
5662
5663
5664
5665
5666
5667
5668
5669
5670
5671
5672
5673
5674
5675
5676
5677
5678
5679
5680
5681
5682
5683
5684
5685
5686
5687
5688
5689
5690
5691
5692
5693
5694
5695
5696
5697
5698
5699
5700
5701
5702
5703
5704
5705
5706
5707
5708
5709
5710
5711
5712
5713
5714
5715
5716
5717
5718
5719
5720
5721
5722
5723
5724
5725
5726
5727
5728
5729
5730
5731
5732
5733
5734
5735
5736
5737
5738
5739
5740
5741
5742
5743
5744
5745
5746
5747
5748
5749
5750
5751
5752
5753
5754
5755
5756
5757
5758
5759
5760
5761
5762
5763
5764
5765
5766
5767
5768
5769
5770
5771
5772
5773
5774
5775
5776
5777
5778
5779
5780
5781
5782
5783
5784
5785
5786
5787
5788
5789
5790
5791
5792
5793
5794
5795
5796
5797
5798
5799
5800
5801
5802
5803
5804
5805
5806
5807
5808
5809
5810
5811
5812
5813
5814
5815
5816
5817
5818
5819
5820
5821
5822
5823
5824
5825
5826
5827
5828
5829
5830
5831
5832
5833
5834
5835
5836
5837
5838
5839
5840
5841
5842
5843
5844
5845
5846
5847
5848
5849
5850
5851
5852
5853
5854
5855
5856
5857
5858
5859
5860
5861
5862
5863
5864
5865
5866
5867
5868
5869
5870
5871
5872
5873
5874
5875
5876
5877
5878
5879
5880
5881
5882
5883
5884
5885
5886
5887
5888
5889
5890
5891
5892
5893
5894
5895
5896
5897
5898
5899
5900
5901
5902
5903
5904
5905
5906
5907
5908
5909
5910
5911
5912
5913
5914
5915
5916
5917
5918
5919
5920
5921
5922
5923
5924
5925
5926
5927
5928
5929
5930
5931
5932
5933
5934
5935
5936
5937
5938
5939
5940
5941
5942
5943
5944
5945
5946
5947
5948
5949
5950
5951
5952
5953
5954
5955
5956
5957
5958
5959
5960
5961
5962
5963
5964
5965
5966
5967
5968
5969
5970
5971
5972
5973
5974
5975
5976
5977
5978
5979
5980
5981
5982
5983
5984
5985
5986
5987
5988
5989
5990
5991
5992
5993
5994
5995
5996
5997
5998
5999
6000
6001
6002
6003
6004
6005
6006
6007
6008
6009
6010
6011
6012
6013
6014
6015
6016
6017
6018
6019
6020
6021
6022
6023
6024
6025
6026
6027
6028
6029
6030
6031
6032
6033
6034
6035
6036
6037
6038
6039
6040
6041
6042
6043
6044
6045
6046
6047
6048
6049
6050
6051
6052
6053
6054
6055
6056
6057
6058
6059
6060
6061
6062
6063
6064
6065
6066
6067
6068
6069
6070
6071
6072
6073
6074
6075
6076
6077
6078
6079
6080
6081
6082
6083
6084
6085
6086
6087
6088
6089
6090
6091
6092
6093
6094
6095
6096
6097
6098
6099
6100
6101
6102
6103
6104
6105
6106
6107
6108
6109
6110
6111
6112
6113
6114
6115
6116
6117
6118
6119
6120
6121
6122
6123
6124
6125
6126
6127
6128
6129
6130
6131
6132
6133
6134
6135
6136
6137
6138
6139
6140
6141
6142
6143
6144
6145
6146
6147
6148
6149
6150
6151
6152
6153
6154
6155
6156
6157
6158
6159
6160
6161
6162
6163
6164
6165
6166
6167
6168
6169
6170
6171
6172
6173
6174
6175
6176
6177
6178
6179
6180
6181
6182
6183
6184
6185
6186
6187
6188
6189
6190
6191
6192
6193
6194
6195
6196
6197
6198
6199
6200
6201
6202
6203
6204
6205
6206
6207
6208
6209
6210
6211
6212
6213
6214
6215
6216
6217
6218
6219
6220
6221
6222
6223
6224
6225
6226
6227
6228
6229
6230
6231
6232
6233
6234
6235
6236
6237
6238
6239
6240
6241
6242
6243
6244
6245
6246
6247
6248
6249
6250
6251
6252
6253
6254
6255
6256
6257
6258
6259
6260
6261
6262
6263
6264
6265
6266
6267
6268
6269
6270
6271
6272
6273
6274
6275
6276
6277
6278
6279
6280
6281
6282
6283
6284
6285
6286
6287
6288
6289
6290
6291
6292
6293
6294
6295
6296
6297
6298
6299
6300
6301
6302
6303
6304
6305
6306
6307
6308
6309
6310
6311
6312
6313
6314
6315
6316
6317
6318
6319
6320
6321
6322
6323
6324
6325
6326
6327
6328
6329
6330
6331
6332
6333
6334
6335
6336
6337
6338
6339
6340
6341
6342
6343
6344
6345
6346
6347
6348
6349
6350
6351
6352
6353
6354
6355
6356
6357
6358
6359
6360
6361
6362
6363
6364
6365
6366
6367
6368
6369
6370
6371
6372
6373
6374
6375
6376
6377
6378
6379
6380
6381
6382
6383
6384
6385
6386
6387
6388
6389
6390
6391
6392
6393
6394
6395
6396
6397
6398
6399
6400
6401
6402
6403
6404
6405
6406
6407
6408
6409
6410
6411
6412
6413
6414
6415
6416
6417
6418
6419
6420
6421
6422
6423
6424
6425
6426
6427
6428
6429
6430
6431
6432
6433
6434
6435
6436
6437
6438
6439
6440
6441
6442
6443
6444
6445
6446
6447
6448
6449
6450
6451
6452
6453
6454
6455
6456
6457
6458
6459
6460
6461
6462
6463
6464
6465
6466
6467
6468
6469
6470
6471
6472
6473
6474
6475
6476
6477
6478
6479
6480
6481
6482
6483
6484
6485
6486
6487
6488
6489
6490
6491
6492
6493
6494
6495
6496
6497
6498
6499
6500
6501
6502
6503
6504
6505
6506
6507
6508
6509
6510
6511
6512
6513
6514
6515
6516
6517
6518
6519
6520
6521
6522
6523
6524
6525
6526
6527
6528
6529
6530
6531
6532
6533
6534
6535
6536
6537
6538
6539
6540
6541
6542
6543
6544
6545
6546
6547
6548
6549
6550
6551
6552
6553
6554
6555
6556
6557
6558
6559
6560
6561
6562
6563
6564
6565
6566
6567
6568
6569
6570
6571
6572
6573
6574
6575
6576
6577
6578
6579
6580
6581
6582
6583
6584
6585
6586
6587
6588
6589
6590
6591
6592
6593
6594
6595
6596
6597
6598
6599
6600
6601
6602
6603
6604
6605
6606
6607
6608
6609
6610
6611
6612
6613
6614
6615
6616
6617
6618
6619
6620
6621
6622
6623
6624
6625
6626
6627
6628
6629
6630
6631
6632
6633
6634
6635
6636
6637
6638
6639
6640
6641
6642
6643
6644
6645
6646
6647
6648
6649
6650
6651
6652
6653
6654
6655
6656
6657
6658
6659
6660
6661
6662
6663
6664
6665
6666
6667
6668
6669
6670
6671
6672
6673
6674
6675
6676
6677
6678
6679
6680
6681
6682
6683
6684
6685
6686
6687
6688
6689
6690
6691
6692
6693
6694
6695
6696
6697
6698
6699
6700
6701
6702
6703
6704
6705
6706
6707
6708
6709
6710
6711
6712
6713
6714
6715
6716
6717
6718
6719
6720
6721
6722
6723
6724
6725
6726
6727
6728
6729
6730
6731
6732
6733
6734
6735
6736
6737
6738
6739
6740
6741
6742
6743
6744
6745
6746
6747
6748
6749
6750
6751
6752
6753
6754
6755
6756
6757
6758
6759
6760
6761
6762
6763
6764
6765
6766
6767
6768
6769
6770
6771
6772
6773
6774
6775
6776
6777
6778
6779
6780
6781
6782
6783
6784
6785
6786
6787
6788
6789
6790
6791
6792
6793
6794
6795
6796
6797
6798
6799
6800
6801
6802
6803
6804
6805
6806
6807
6808
6809
6810
6811
6812
6813
6814
6815
6816
6817
6818
6819
6820
6821
6822
6823
6824
6825
6826
6827
6828
6829
6830
6831
6832
6833
6834
6835
6836
6837
6838
6839
6840
6841
6842
6843
6844
6845
6846
6847
6848
6849
6850
6851
6852
6853
6854
6855
6856
6857
6858
6859
6860
6861
6862
6863
6864
6865
6866
6867
6868
6869
6870
6871
6872
6873
6874
6875
6876
6877
6878
6879
6880
6881
6882
6883
6884
6885
6886
6887
6888
6889
6890
6891
6892
6893
6894
6895
6896
6897
6898
6899
6900
6901
6902
6903
6904
6905
6906
6907
6908
6909
6910
6911
6912
6913
6914
6915
6916
6917
6918
6919
6920
6921
6922
6923
6924
6925
6926
6927
6928
6929
6930
6931
6932
6933
6934
6935
6936
6937
6938
6939
6940
6941
6942
6943
6944
6945
6946
6947
6948
6949
6950
6951
6952
6953
6954
6955
6956
6957
6958
6959
6960
6961
6962
6963
6964
6965
6966
6967
6968
6969
6970
6971
6972
6973
6974
6975
6976
6977
6978
6979
6980
6981
6982
6983
6984
6985
6986
6987
6988
6989
6990
6991
6992
6993
6994
6995
6996
6997
6998
6999
7000
7001
7002
7003
7004
7005
7006
7007
7008
7009
7010
7011
7012
7013
7014
7015
7016
7017
7018
7019
7020
7021
7022
7023
7024
7025
7026
7027
7028
7029
7030
7031
7032
7033
7034
7035
7036
7037
7038
7039
7040
7041
7042
7043
7044
7045
7046
7047
7048
7049
7050
7051
7052
7053
7054
7055
7056
7057
7058
7059
7060
7061
7062
7063
7064
7065
7066
7067
7068
7069
7070
7071
7072
7073
7074
7075
7076
7077
7078
7079
7080
7081
7082
7083
7084
7085
7086
7087
7088
7089
7090
7091
7092
7093
7094
7095
7096
7097
7098
7099
7100
7101
7102
7103
7104
7105
7106
7107
7108
7109
7110
7111
7112
7113
7114
7115
7116
7117
7118
7119
7120
7121
7122
7123
7124
7125
7126
7127
7128
7129
7130
7131
7132
7133
7134
7135
7136
7137
7138
7139
7140
7141
7142
7143
7144
7145
7146
7147
7148
7149
7150
7151
7152
7153
7154
7155
7156
7157
7158
7159
7160
7161
7162
7163
7164
7165
7166
7167
7168
7169
7170
7171
7172
7173
7174
7175
7176
7177
7178
7179
7180
7181
7182
7183
7184
7185
7186
7187
7188
7189
7190
7191
7192
7193
7194
7195
7196
7197
7198
7199
7200
7201
7202
7203
7204
7205
7206
7207
7208
7209
7210
7211
7212
7213
7214
7215
7216
7217
7218
7219
7220
7221
7222
7223
7224
7225
7226
7227
7228
7229
7230
7231
7232
7233
7234
7235
7236
7237
7238
7239
7240
7241
7242
7243
7244
7245
7246
7247
7248
7249
7250
7251
7252
7253
7254
7255
7256
7257
7258
7259
7260
7261
7262
7263
7264
7265
7266
7267
7268
7269
7270
7271
7272
7273
7274
7275
7276
7277
7278
7279
7280
7281
7282
7283
7284
7285
7286
7287
7288
7289
7290
7291
7292
7293
7294
7295
7296
7297
7298
7299
7300
7301
7302
7303
7304
7305
7306
7307
7308
7309
7310
7311
7312
7313
7314
7315
7316
7317
7318
7319
7320
7321
7322
7323
7324
7325
7326
7327
7328
7329
7330
7331
7332
7333
7334
7335
7336
7337
7338
7339
7340
7341
7342
7343
7344
7345
7346
7347
7348
7349
7350
7351
7352
7353
7354
7355
7356
7357
7358
7359
7360
7361
7362
7363
7364
7365
7366
7367
7368
7369
7370
7371
7372
7373
7374
7375
7376
7377
7378
7379
7380
7381
7382
7383
7384
7385
7386
7387
7388
7389
7390
7391
7392
7393
7394
7395
7396
7397
7398
7399
7400
7401
7402
7403
7404
7405
7406
7407
7408
7409
7410
7411
7412
7413
7414
7415
7416
7417
7418
7419
7420
7421
7422
7423
7424
7425
7426
7427
7428
7429
7430
7431
7432
7433
7434
7435
7436
7437
7438
7439
7440
7441
7442
7443
7444
7445
7446
7447
7448
7449
7450
7451
7452
7453
7454
7455
7456
7457
7458
7459
7460
7461
7462
7463
7464
7465
7466
7467
7468
7469
7470
7471
7472
7473
7474
7475
7476
7477
7478
7479
7480
7481
7482
7483
7484
7485
7486
7487
7488
7489
7490
7491
7492
7493
7494
7495
7496
7497
7498
7499
7500
7501
7502
7503
7504
7505
7506
7507
7508
7509
7510
7511
7512
7513
7514
7515
7516
7517
7518
7519
7520
7521
7522
7523
7524
7525
7526
7527
7528
7529
7530
7531
7532
7533
7534
7535
7536
7537
7538
7539
7540
7541
7542
7543
7544
7545
7546
7547
7548
7549
7550
7551
7552
7553
7554
7555
7556
7557
7558
7559
7560
7561
7562
7563
7564
7565
7566
7567
7568
7569
7570
7571
7572
7573
7574
7575
7576
7577
7578
7579
7580
7581
7582
7583
7584
7585
7586
7587
7588
7589
7590
7591
7592
7593
7594
7595
7596
7597
7598
7599
7600
7601
7602
7603
7604
7605
7606
7607
7608
7609
7610
7611
7612
7613
7614
7615
7616
7617
7618
7619
7620
7621
7622
7623
7624
7625
7626
7627
7628
7629
7630
7631
7632
7633
7634
7635
7636
7637
7638
7639
7640
7641
7642
7643
7644
7645
7646
7647
7648
7649
7650
7651
7652
7653
7654
7655
7656
7657
7658
7659
7660
7661
7662
7663
7664
7665
7666
7667
7668
7669
7670
7671
7672
7673
7674
7675
7676
7677
7678
7679
7680
7681
7682
7683
7684
7685
7686
7687
7688
7689
7690
7691
7692
7693
7694
7695
7696
7697
7698
7699
7700
7701
7702
7703
7704
7705
7706
7707
7708
7709
7710
7711
7712
7713
7714
7715
7716
7717
7718
7719
7720
7721
7722
7723
7724
7725
7726
7727
7728
7729
7730
7731
7732
7733
7734
7735
7736
7737
7738
7739
7740
7741
7742
7743
7744
7745
7746
7747
7748
7749
7750
7751
7752
7753
7754
7755
7756
7757
7758
7759
7760
7761
7762
7763
7764
7765
7766
7767
7768
7769
7770
7771
7772
7773
7774
7775
7776
7777
7778
7779
7780
7781
7782
7783
7784
7785
7786
7787
7788
7789
7790
7791
7792
7793
7794
7795
7796
7797
7798
7799
7800
7801
7802
7803
7804
7805
7806
7807
7808
7809
7810
7811
7812
7813
7814
7815
7816
7817
7818
7819
7820
7821
7822
7823
7824
7825
7826
7827
7828
7829
7830
7831
7832
7833
7834
7835
7836
7837
7838
7839
7840
7841
7842
7843
7844
7845
7846
7847
7848
7849
7850
7851
7852
7853
7854
7855
7856
7857
7858
7859
7860
7861
7862
7863
7864
7865
7866
7867
7868
7869
7870
7871
7872
7873
7874
7875
7876
7877
7878
7879
7880
7881
7882
7883
7884
7885
7886
7887
7888
7889
7890
7891
7892
7893
7894
7895
7896
7897
7898
7899
7900
7901
7902
7903
7904
7905
7906
7907
7908
7909
7910
7911
7912
7913
7914
7915
7916
7917
7918
7919
7920
7921
7922
7923
7924
7925
7926
7927
7928
7929
7930
7931
7932
7933
7934
7935
7936
7937
7938
7939
7940
7941
7942
7943
7944
7945
7946
7947
7948
7949
7950
7951
7952
7953
7954
7955
7956
7957
7958
7959
7960
7961
7962
7963
7964
7965
7966
7967
7968
7969
7970
7971
7972
7973
7974
7975
7976
7977
7978
7979
7980
7981
7982
7983
7984
7985
7986
7987
7988
7989
7990
7991
7992
7993
7994
7995
7996
7997
7998
7999
8000
8001
8002
8003
8004
8005
8006
8007
8008
8009
8010
8011
8012
8013
8014
8015
8016
8017
8018
8019
8020
8021
8022
8023
8024
8025
8026
8027
8028
8029
8030
8031
8032
8033
8034
8035
8036
8037
8038
8039
8040
8041
8042
8043
8044
8045
8046
8047
8048
8049
8050
8051
8052
8053
8054
8055
8056
8057
8058
8059
8060
8061
8062
8063
8064
8065
8066
8067
8068
8069
8070
8071
8072
8073
8074
8075
8076
8077
8078
8079
8080
8081
8082
8083
8084
8085
8086
8087
8088
8089
8090
8091
8092
8093
8094
8095
8096
8097
8098
8099
8100
8101
8102
8103
8104
8105
8106
8107
8108
8109
8110
8111
8112
8113
8114
8115
8116
8117
8118
8119
8120
8121
8122
8123
8124
8125
8126
8127
8128
8129
8130
8131
8132
8133
8134
8135
8136
8137
8138
8139
8140
8141
8142
8143
8144
8145
8146
8147
8148
8149
8150
8151
8152
8153
8154
8155
8156
8157
8158
8159
8160
8161
8162
8163
8164
8165
8166
8167
8168
8169
8170
8171
8172
8173
8174
8175
8176
8177
8178
8179
8180
8181
8182
8183
8184
8185
8186
8187
8188
8189
8190
8191
8192
8193
8194
8195
8196
8197
8198
8199
8200
8201
8202
8203
8204
8205
8206
8207
8208
8209
8210
8211
8212
8213
8214
8215
8216
8217
8218
8219
8220
8221
8222
8223
8224
8225
8226
8227
8228
8229
8230
8231
8232
8233
8234
8235
8236
8237
8238
8239
8240
8241
8242
8243
8244
8245
8246
8247
8248
8249
8250
8251
8252
8253
8254
8255
8256
8257
8258
8259
8260
8261
8262
8263
8264
8265
8266
8267
8268
8269
8270
8271
8272
8273
8274
8275
8276
8277
8278
8279
8280
8281
8282
8283
8284
8285
8286
8287
8288
8289
8290
8291
8292
8293
8294
8295
8296
8297
8298
8299
8300
8301
8302
8303
8304
8305
8306
8307
8308
8309
8310
8311
8312
8313
8314
8315
8316
8317
8318
8319
8320
8321
8322
8323
8324
8325
8326
8327
8328
8329
8330
8331
8332
8333
8334
8335
8336
8337
8338
8339
8340
8341
8342
8343
8344
8345
8346
8347
8348
8349
8350
8351
8352
8353
8354
8355
8356
8357
8358
8359
8360
8361
8362
8363
8364
8365
8366
8367
8368
8369
8370
8371
8372
8373
8374
8375
8376
8377
8378
8379
8380
8381
8382
8383
8384
8385
8386
8387
8388
8389
8390
8391
8392
8393
8394
8395
8396
8397
8398
8399
8400
8401
8402
8403
8404
8405
8406
8407
8408
8409
8410
8411
8412
8413
8414
8415
8416
8417
8418
8419
8420
8421
8422
8423
8424
8425
8426
8427
8428
8429
8430
8431
8432
8433
8434
8435
8436
8437
8438
8439
8440
8441
8442
8443
8444
8445
8446
8447
8448
8449
8450
8451
8452
8453
8454
8455
8456
8457
8458
8459
8460
8461
8462
8463
8464
8465
8466
8467
8468
8469
8470
8471
8472
8473
8474
8475
8476
8477
8478
8479
8480
8481
8482
8483
8484
8485
8486
8487
8488
8489
8490
8491
8492
8493
8494
8495
8496
8497
8498
8499
8500
8501
8502
8503
8504
8505
8506
8507
8508
8509
8510
8511
8512
8513
8514
8515
8516
8517
8518
8519
8520
8521
8522
8523
8524
8525
8526
8527
8528
8529
8530
8531
8532
8533
8534
8535
8536
8537
8538
8539
8540
8541
8542
8543
8544
8545
8546
8547
8548
8549
8550
8551
8552
8553
8554
8555
8556
8557
8558
8559
8560
8561
8562
8563
8564
8565
8566
8567
8568
8569
8570
8571
8572
8573
8574
8575
8576
8577
8578
8579
8580
8581
8582
8583
8584
8585
8586
8587
8588
8589
8590
8591
8592
8593
8594
8595
8596
8597
8598
8599
8600
8601
8602
8603
8604
8605
8606
8607
8608
8609
8610
8611
8612
8613
8614
8615
8616
8617
8618
8619
8620
8621
8622
8623
8624
8625
8626
8627
8628
8629
8630
8631
8632
8633
8634
8635
8636
8637
8638
8639
8640
8641
8642
8643
8644
8645
8646
8647
8648
8649
8650
8651
8652
8653
8654
8655
8656
8657
8658
8659
8660
8661
8662
8663
8664
8665
8666
8667
8668
8669
8670
8671
8672
8673
8674
8675
8676
8677
8678
8679
8680
8681
8682
8683
8684
8685
8686
8687
8688
8689
8690
8691
8692
8693
8694
8695
8696
8697
8698
8699
8700
8701
8702
8703
8704
8705
8706
8707
8708
8709
8710
8711
8712
8713
8714
8715
8716
8717
8718
8719
8720
8721
8722
8723
8724
8725
8726
8727
8728
8729
8730
8731
8732
8733
8734
8735
8736
8737
8738
8739
8740
8741
8742
8743
8744
8745
8746
8747
8748
8749
8750
8751
8752
8753
8754
8755
8756
8757
8758
8759
8760
8761
8762
8763
8764
8765
8766
8767
8768
8769
8770
8771
8772
8773
8774
8775
8776
8777
8778
8779
8780
8781
8782
8783
8784
8785
8786
8787
8788
8789
8790
8791
8792
8793
8794
8795
8796
8797
8798
8799
8800
8801
8802
8803
8804
8805
8806
8807
8808
8809
8810
8811
8812
8813
8814
8815
8816
8817
8818
8819
8820
8821
8822
8823
8824
8825
8826
8827
8828
8829
8830
8831
8832
8833
8834
8835
8836
8837
8838
8839
8840
8841
8842
8843
8844
8845
8846
8847
8848
8849
8850
8851
8852
8853
8854
8855
8856
8857
8858
8859
8860
8861
8862
8863
8864
8865
8866
8867
8868
8869
8870
8871
8872
8873
8874
8875
8876
8877
8878
8879
8880
8881
8882
8883
8884
8885
8886
8887
8888
8889
8890
8891
8892
8893
8894
8895
8896
8897
8898
8899
8900
8901
8902
8903
8904
8905
8906
8907
8908
8909
8910
8911
8912
8913
8914
8915
8916
8917
8918
8919
8920
8921
8922
8923
8924
8925
8926
8927
8928
8929
8930
8931
8932
8933
8934
8935
8936
8937
8938
8939
8940
8941
8942
8943
8944
8945
8946
8947
8948
8949
8950
8951
8952
8953
8954
8955
8956
8957
8958
8959
8960
8961
8962
8963
8964
8965
8966
8967
8968
8969
8970
8971
8972
8973
8974
8975
8976
8977
8978
8979
8980
8981
8982
8983
8984
8985
8986
8987
8988
8989
8990
8991
8992
8993
8994
8995
8996
8997
8998
8999
9000
9001
9002
9003
9004
9005
9006
9007
9008
9009
9010
9011
9012
9013
9014
9015
9016
9017
9018
9019
9020
9021
9022
9023
9024
9025
9026
9027
9028
9029
9030
9031
9032
9033
9034
9035
9036
9037
9038
9039
9040
9041
9042
9043
9044
9045
9046
9047
9048
9049
9050
9051
9052
9053
9054
9055
9056
9057
9058
9059
9060
9061
9062
9063
9064
9065
9066
9067
9068
9069
9070
9071
9072
9073
9074
9075
9076
9077
9078
9079
9080
9081
9082
9083
9084
9085
9086
9087
9088
9089
9090
9091
9092
9093
9094
9095
9096
9097
9098
9099
9100
9101
9102
9103
9104
9105
9106
9107
9108
9109
9110
9111
9112
9113
9114
9115
9116
9117
9118
9119
9120
9121
9122
9123
9124
9125
9126
9127
9128
9129
9130
9131
9132
9133
9134
9135
9136
9137
9138
9139
9140
9141
9142
9143
9144
9145
9146
9147
9148
9149
9150
9151
9152
9153
9154
9155
9156
9157
9158
9159
9160
9161
9162
9163
9164
9165
9166
9167
9168
9169
9170
9171
9172
9173
9174
9175
9176
9177
9178
9179
9180
9181
9182
9183
9184
9185
9186
9187
9188
9189
9190
9191
9192
9193
9194
9195
9196
9197
9198
9199
9200
9201
9202
9203
9204
9205
9206
9207
9208
9209
9210
9211
9212
9213
9214
9215
9216
9217
9218
9219
9220
9221
9222
9223
9224
9225
9226
9227
9228
9229
9230
9231
9232
9233
9234
9235
9236
9237
9238
9239
9240
9241
9242
9243
9244
9245
9246
9247
9248
9249
9250
9251
9252
9253
9254
9255
9256
9257
9258
9259
9260
9261
9262
9263
9264
9265
9266
9267
9268
9269
9270
9271
9272
9273
9274
9275
9276
9277
9278
9279
9280
9281
9282
9283
9284
9285
9286
9287
9288
9289
9290
9291
9292
9293
9294
9295
9296
9297
9298
9299
9300
9301
9302
9303
9304
9305
9306
9307
9308
9309
9310
9311
9312
9313
9314
9315
9316
9317
9318
9319
9320
9321
9322
9323
9324
9325
9326
9327
9328
9329
9330
9331
9332
9333
9334
9335
9336
9337
9338
9339
9340
9341
9342
9343
9344
9345
9346
9347
9348
9349
9350
9351
9352
9353
9354
9355
9356
9357
9358
9359
9360
9361
9362
9363
9364
9365
9366
9367
9368
9369
9370
9371
9372
9373
9374
9375
9376
9377
9378
9379
9380
9381
9382
9383
9384
9385
9386
9387
9388
9389
9390
9391
9392
9393
9394
9395
9396
9397
9398
9399
9400
9401
9402
9403
9404
9405
9406
9407
9408
9409
9410
9411
9412
9413
9414
9415
9416
9417
9418
9419
9420
9421
9422
9423
9424
9425
9426
9427
9428
9429
9430
9431
9432
9433
9434
9435
9436
9437
9438
9439
9440
9441
9442
9443
9444
9445
9446
9447
9448
9449
9450
9451
9452
9453
9454
9455
9456
9457
9458
9459
9460
9461
9462
9463
9464
9465
9466
9467
9468
9469
9470
9471
9472
9473
9474
9475
9476
9477
9478
9479
9480
9481
9482
9483
9484
9485
9486
9487
9488
9489
9490
9491
9492
9493
9494
9495
9496
9497
9498
9499
9500
9501
9502
9503
9504
9505
9506
9507
9508
9509
9510
9511
9512
9513
9514
9515
9516
9517
9518
9519
9520
9521
9522
9523
9524
9525
9526
9527
9528
9529
9530
9531
9532
9533
9534
9535
9536
9537
9538
9539
9540
9541
9542
9543
9544
9545
9546
9547
9548
9549
9550
9551
9552
9553
9554
9555
9556
9557
9558
9559
9560
9561
9562
9563
9564
9565
9566
9567
9568
9569
9570
9571
9572
9573
9574
9575
9576
9577
9578
9579
9580
9581
9582
9583
9584
9585
9586
9587
9588
9589
9590
9591
9592
9593
9594
9595
9596
9597
9598
9599
9600
9601
9602
9603
9604
9605
9606
9607
9608
9609
9610
9611
9612
9613
9614
9615
9616
9617
9618
9619
9620
9621
9622
9623
9624
9625
9626
9627
9628
9629
9630
9631
9632
9633
9634
9635
9636
9637
9638
9639
9640
9641
9642
9643
9644
9645
9646
9647
9648
9649
9650
9651
9652
9653
9654
9655
9656
9657
9658
9659
9660
9661
9662
9663
9664
9665
9666
9667
9668
9669
9670
9671
9672
9673
9674
9675
9676
9677
9678
9679
9680
9681
9682
9683
9684
9685
9686
9687
9688
9689
9690
9691
9692
9693
9694
9695
9696
9697
9698
9699
9700
9701
9702
9703
9704
9705
9706
9707
9708
9709
9710
9711
9712
9713
9714
9715
9716
9717
9718
9719
9720
9721
9722
9723
9724
9725
9726
9727
9728
9729
9730
9731
9732
9733
9734
9735
9736
9737
9738
9739
9740
9741
9742
9743
9744
9745
9746
9747
9748
9749
9750
9751
9752
9753
9754
9755
9756
9757
9758
9759
9760
9761
9762
9763
9764
9765
9766
9767
9768
9769
9770
9771
9772
9773
9774
9775
9776
9777
9778
9779
9780
9781
9782
9783
9784
9785
9786
9787
9788
9789
9790
9791
9792
9793
9794
9795
9796
9797
9798
9799
9800
9801
9802
9803
9804
9805
9806
9807
9808
9809
9810
9811
9812
9813
9814
9815
9816
9817
9818
9819
9820
9821
9822
9823
9824
9825
9826
9827
9828
9829
9830
9831
9832
9833
9834
9835
9836
9837
9838
9839
9840
9841
9842
9843
9844
9845
9846
9847
9848
9849
9850
9851
9852
9853
9854
9855
9856
9857
9858
9859
9860
9861
9862
9863
9864
9865
9866
9867
9868
9869
9870
9871
9872
9873
9874
9875
9876
9877
9878
9879
9880
9881
9882
9883
9884
9885
9886
9887
9888
9889
9890
9891
9892
9893
9894
9895
9896
9897
9898
9899
9900
9901
9902
9903
9904
9905
9906
9907
9908
9909
9910
9911
9912
9913
9914
9915
9916
9917
9918
9919
9920
9921
9922
9923
9924
9925
9926
9927
9928
9929
9930
9931
9932
9933
9934
9935
9936
9937
9938
9939
9940
9941
9942
9943
9944
9945
9946
9947
9948
9949
9950
9951
9952
9953
9954
9955
9956
9957
9958
9959
9960
9961
9962
9963
9964
9965
9966
9967
9968
9969
9970
9971
9972
9973
9974
9975
9976
9977
9978
9979
9980
9981
9982
9983
9984
9985
9986
9987
9988
9989
9990
9991
9992
9993
9994
9995
9996
9997
9998
9999
10000
10001
10002
10003
10004
10005
10006
10007
10008
10009
10010
10011
10012
10013
10014
10015
10016
10017
10018
10019
10020
10021
10022
10023
10024
10025
10026
10027
10028
10029
10030
10031
10032
10033
10034
10035
10036
10037
10038
10039
10040
10041
10042
10043
10044
10045
10046
10047
10048
10049
10050
10051
10052
10053
10054
10055
10056
10057
10058
10059
10060
10061
10062
10063
10064
10065
10066
10067
10068
10069
10070
10071
10072
10073
10074
10075
10076
10077
10078
10079
10080
10081
10082
10083
10084
10085
10086
10087
10088
10089
10090
10091
10092
10093
10094
10095
10096
10097
10098
10099
10100
10101
10102
10103
10104
10105
10106
10107
10108
10109
10110
10111
10112
10113
10114
10115
10116
10117
10118
10119
10120
10121
10122
10123
10124
10125
10126
10127
10128
10129
10130
10131
10132
10133
10134
10135
10136
10137
10138
10139
10140
10141
10142
10143
10144
10145
10146
10147
10148
10149
10150
10151
10152
10153
10154
10155
10156
10157
10158
10159
10160
10161
10162
10163
10164
10165
10166
10167
10168
10169
10170
10171
10172
10173
10174
10175
10176
10177
10178
10179
10180
10181
10182
10183
10184
10185
10186
10187
10188
10189
10190
10191
10192
10193
10194
10195
10196
10197
10198
10199
10200
10201
10202
10203
10204
10205
10206
10207
10208
10209
10210
10211
10212
10213
10214
10215
10216
10217
10218
10219
10220
10221
10222
10223
10224
10225
10226
10227
10228
10229
10230
10231
10232
10233
10234
10235
10236
10237
10238
10239
10240
10241
10242
10243
10244
10245
10246
10247
10248
10249
10250
10251
10252
10253
10254
10255
10256
10257
10258
10259
10260
10261
10262
10263
10264
10265
10266
10267
10268
10269
10270
10271
10272
10273
10274
10275
10276
10277
10278
10279
10280
10281
10282
10283
10284
10285
10286
10287
10288
10289
10290
10291
10292
10293
10294
10295
10296
10297
10298
10299
10300
10301
10302
10303
10304
10305
10306
10307
10308
10309
10310
10311
10312
10313
10314
10315
10316
10317
10318
10319
10320
10321
10322
10323
10324
10325
10326
10327
10328
10329
10330
10331
10332
10333
10334
10335
10336
10337
10338
10339
10340
10341
10342
10343
10344
10345
10346
10347
10348
10349
10350
10351
10352
10353
10354
10355
10356
10357
10358
10359
10360
10361
10362
10363
10364
10365
10366
10367
10368
10369
10370
10371
10372
10373
10374
10375
10376
10377
10378
10379
10380
10381
10382
10383
10384
10385
10386
10387
10388
10389
10390
10391
10392
10393
10394
10395
10396
10397
10398
10399
10400
10401
10402
10403
10404
10405
10406
10407
10408
10409
10410
10411
10412
10413
10414
10415
10416
10417
10418
10419
10420
10421
10422
10423
10424
10425
10426
10427
10428
10429
10430
10431
10432
10433
10434
10435
10436
10437
10438
10439
10440
10441
10442
10443
10444
10445
10446
10447
10448
10449
10450
10451
10452
10453
10454
10455
10456
10457
10458
10459
10460
10461
10462
10463
10464
10465
10466
10467
10468
10469
10470
10471
10472
10473
10474
10475
10476
10477
10478
10479
10480
10481
10482
10483
10484
10485
10486
10487
10488
10489
10490
10491
10492
10493
10494
10495
10496
10497
10498
10499
10500
10501
10502
10503
10504
10505
10506
10507
10508
10509
10510
10511
10512
10513
10514
10515
10516
10517
10518
10519
10520
10521
10522
10523
10524
10525
10526
10527
10528
10529
10530
10531
10532
10533
10534
10535
10536
10537
10538
10539
10540
10541
10542
10543
10544
10545
10546
10547
10548
10549
10550
10551
10552
10553
10554
10555
10556
10557
10558
10559
10560
10561
10562
10563
10564
10565
10566
10567
10568
10569
10570
10571
10572
10573
10574
10575
10576
10577
10578
10579
10580
10581
10582
10583
10584
10585
10586
10587
10588
10589
10590
10591
10592
10593
10594
10595
10596
10597
10598
10599
10600
10601
10602
10603
10604
10605
10606
10607
10608
10609
10610
10611
10612
10613
10614
10615
10616
10617
10618
10619
10620
10621
10622
10623
10624
10625
10626
10627
10628
10629
10630
10631
10632
10633
10634
10635
10636
10637
10638
10639
10640
10641
10642
10643
10644
10645
10646
10647
10648
10649
10650
10651
10652
10653
10654
10655
10656
10657
10658
10659
10660
10661
10662
10663
10664
10665
10666
10667
10668
10669
10670
10671
10672
10673
10674
10675
10676
10677
10678
10679
10680
10681
10682
10683
10684
10685
10686
10687
10688
10689
10690
10691
10692
10693
10694
10695
10696
10697
10698
10699
10700
10701
10702
10703
10704
10705
10706
10707
10708
10709
10710
10711
10712
10713
10714
10715
10716
10717
10718
10719
10720
10721
10722
10723
10724
10725
10726
10727
10728
10729
10730
10731
10732
10733
10734
10735
10736
10737
10738
10739
10740
10741
10742
10743
10744
10745
10746
10747
10748
10749
10750
10751
10752
10753
10754
10755
10756
10757
10758
10759
10760
10761
10762
10763
10764
10765
10766
10767
10768
10769
10770
10771
10772
10773
10774
10775
10776
10777
10778
10779
10780
10781
10782
10783
10784
10785
10786
10787
10788
10789
10790
10791
10792
10793
10794
10795
10796
10797
10798
10799
10800
10801
10802
10803
10804
10805
10806
10807
10808
10809
10810
10811
10812
10813
10814
10815
10816
10817
10818
10819
10820
10821
10822
10823
10824
10825
10826
10827
10828
10829
10830
10831
10832
10833
10834
10835
10836
10837
10838
10839
10840
10841
10842
10843
10844
10845
10846
10847
10848
10849
10850
10851
10852
10853
10854
10855
10856
10857
10858
10859
10860
10861
10862
10863
10864
10865
10866
10867
10868
10869
10870
10871
10872
10873
10874
10875
10876
10877
10878
10879
10880
10881
10882
10883
10884
10885
10886
10887
10888
10889
10890
10891
10892
10893
10894
10895
10896
10897
10898
10899
10900
10901
10902
10903
10904
10905
10906
10907
10908
10909
10910
10911
10912
10913
10914
10915
10916
10917
10918
10919
10920
10921
10922
10923
10924
10925
10926
10927
10928
10929
10930
10931
10932
10933
10934
10935
10936
10937
10938
10939
10940
10941
10942
10943
10944
10945
10946
10947
10948
10949
10950
10951
10952
10953
10954
10955
10956
10957
10958
10959
10960
10961
10962
10963
10964
10965
10966
10967
10968
10969
10970
10971
10972
10973
10974
10975
10976
10977
10978
10979
10980
10981
10982
10983
10984
10985
10986
10987
10988
10989
10990
10991
10992
10993
10994
10995
10996
10997
10998
10999
11000
11001
11002
11003
11004
11005
11006
11007
11008
11009
11010
11011
11012
11013
11014
11015
11016
11017
11018
11019
11020
11021
11022
11023
11024
11025
11026
11027
11028
11029
11030
11031
11032
11033
11034
11035
11036
11037
11038
11039
11040
11041
11042
11043
11044
11045
11046
11047
11048
11049
11050
11051
11052
11053
11054
11055
11056
11057
11058
11059
11060
11061
11062
11063
11064
11065
11066
11067
11068
11069
11070
11071
11072
11073
11074
11075
11076
11077
11078
11079
11080
11081
11082
11083
11084
11085
11086
11087
11088
11089
11090
11091
11092
11093
11094
11095
11096
11097
11098
11099
11100
11101
11102
11103
11104
11105
11106
11107
11108
11109
11110
11111
11112
11113
11114
11115
11116
11117
11118
11119
11120
11121
11122
11123
11124
11125
11126
11127
11128
11129
11130
11131
11132
11133
11134
11135
11136
11137
11138
11139
11140
11141
11142
11143
11144
11145
11146
11147
11148
11149
11150
11151
11152
11153
11154
11155
11156
11157
11158
11159
11160
11161
11162
11163
11164
11165
11166
11167
11168
11169
11170
11171
11172
11173
11174
11175
11176
11177
11178
11179
11180
11181
11182
11183
11184
11185
11186
11187
11188
11189
11190
11191
11192
11193
11194
11195
11196
11197
11198
11199
11200
11201
11202
11203
11204
11205
11206
11207
11208
11209
11210
11211
11212
11213
11214
11215
11216
11217
11218
11219
11220
11221
11222
11223
11224
11225
11226
11227
11228
11229
11230
11231
11232
11233
11234
11235
11236
11237
11238
11239
11240
11241
11242
11243
11244
11245
11246
11247
11248
11249
11250
11251
11252
11253
11254
11255
11256
11257
11258
11259
11260
11261
11262
11263
11264
11265
11266
11267
11268
11269
11270
11271
11272
11273
11274
11275
11276
11277
11278
11279
11280
11281
11282
11283
11284
11285
11286
11287
11288
11289
11290
11291
11292
11293
11294
11295
11296
11297
11298
11299
11300
11301
11302
11303
11304
11305
11306
11307
11308
11309
11310
11311
11312
11313
11314
11315
11316
11317
11318
11319
11320
11321
11322
11323
11324
11325
11326
11327
11328
11329
11330
11331
11332
11333
11334
11335
11336
11337
11338
11339
11340
11341
11342
11343
11344
11345
11346
11347
11348
11349
11350
11351
11352
11353
11354
11355
11356
11357
11358
11359
11360
11361
11362
11363
11364
11365
11366
11367
11368
11369
11370
11371
11372
11373
11374
11375
11376
11377
11378
11379
11380
11381
11382
11383
11384
11385
11386
11387
11388
11389
11390
11391
11392
11393
11394
11395
11396
11397
11398
11399
11400
11401
11402
11403
11404
11405
11406
11407
11408
11409
11410
11411
11412
11413
11414
11415
11416
11417
11418
11419
11420
11421
11422
11423
11424
11425
11426
11427
11428
11429
11430
11431
11432
11433
11434
11435
11436
11437
11438
11439
11440
11441
11442
11443
11444
11445
11446
11447
11448
11449
11450
11451
11452
11453
11454
11455
11456
11457
11458
11459
11460
11461
11462
11463
11464
11465
11466
11467
11468
11469
11470
11471
11472
11473
11474
11475
11476
11477
11478
11479
11480
11481
11482
11483
11484
11485
11486
11487
11488
11489
11490
11491
11492
11493
11494
11495
11496
11497
11498
11499
11500
11501
11502
11503
11504
11505
11506
11507
11508
11509
11510
11511
11512
11513
11514
11515
11516
11517
11518
11519
11520
11521
11522
11523
11524
11525
11526
11527
11528
11529
11530
11531
11532
11533
11534
11535
11536
11537
11538
11539
11540
11541
11542
11543
11544
11545
11546
11547
11548
11549
11550
11551
11552
11553
11554
11555
11556
11557
11558
11559
11560
11561
11562
11563
11564
11565
11566
11567
11568
11569
11570
11571
11572
11573
11574
11575
11576
11577
11578
11579
11580
11581
11582
11583
11584
11585
11586
11587
11588
11589
11590
11591
11592
11593
11594
11595
11596
11597
11598
11599
11600
11601
11602
11603
11604
11605
11606
11607
11608
11609
11610
11611
11612
11613
11614
11615
11616
11617
11618
11619
11620
11621
11622
11623
11624
11625
11626
11627
11628
11629
11630
11631
11632
11633
11634
11635
11636
11637
11638
11639
11640
11641
11642
11643
11644
11645
11646
11647
11648
11649
11650
11651
11652
11653
11654
11655
11656
11657
11658
11659
11660
11661
11662
11663
11664
11665
11666
11667
11668
11669
11670
11671
11672
11673
11674
11675
11676
11677
11678
11679
11680
11681
11682
11683
11684
11685
11686
11687
11688
11689
11690
11691
11692
11693
11694
11695
11696
11697
11698
11699
11700
11701
11702
11703
11704
11705
11706
11707
11708
11709
11710
11711
11712
11713
11714
11715
11716
11717
11718
11719
11720
11721
11722
11723
11724
11725
11726
11727
11728
11729
11730
11731
11732
11733
11734
11735
11736
11737
11738
11739
11740
11741
11742
11743
11744
11745
11746
11747
11748
11749
11750
11751
11752
11753
11754
11755
11756
11757
11758
11759
11760
11761
11762
11763
11764
11765
11766
11767
11768
11769
11770
11771
11772
11773
11774
11775
11776
11777
11778
11779
11780
11781
11782
11783
11784
11785
11786
11787
11788
11789
11790
11791
11792
11793
11794
11795
11796
11797
11798
11799
11800
11801
11802
11803
11804
11805
11806
11807
11808
11809
11810
11811
11812
11813
11814
11815
11816
11817
11818
11819
11820
11821
11822
11823
11824
11825
11826
11827
11828
11829
11830
11831
11832
11833
11834
11835
11836
11837
11838
11839
11840
11841
11842
11843
11844
11845
11846
11847
11848
11849
11850
11851
11852
11853
11854
11855
11856
11857
11858
11859
11860
11861
11862
11863
11864
11865
11866
11867
11868
11869
11870
11871
11872
11873
11874
11875
11876
11877
11878
11879
11880
11881
11882
11883
11884
11885
11886
11887
11888
11889
11890
11891
11892
11893
11894
11895
11896
11897
11898
11899
11900
11901
11902
11903
11904
11905
11906
11907
11908
11909
11910
11911
11912
11913
11914
11915
11916
11917
11918
11919
11920
11921
11922
11923
11924
11925
11926
11927
11928
11929
11930
11931
11932
11933
11934
11935
11936
11937
11938
11939
11940
11941
11942
11943
11944
11945
11946
11947
11948
11949
11950
11951
11952
11953
11954
11955
11956
11957
11958
11959
11960
11961
11962
11963
11964
11965
11966
11967
11968
11969
11970
11971
11972
11973
11974
11975
11976
11977
11978
11979
11980
11981
11982
11983
11984
11985
11986
11987
11988
11989
11990
11991
11992
11993
11994
11995
11996
11997
11998
11999
12000
12001
12002
12003
| | /* Keyboard and mouse input; editor command loop.
Copyright (C) 1985-1989, 1993-1997, 1999-2017 Free Software Foundation,
Inc.
This file is part of GNU Emacs.
GNU Emacs is free software: you can redistribute it and/or modify
it under the terms of the GNU General Public License as published by
the Free Software Foundation, either version 3 of the License, or (at
your option) any later version.
GNU Emacs is distributed in the hope that it will be useful,
but WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
GNU General Public License for more details.
You should have received a copy of the GNU General Public License
along with GNU Emacs. If not, see <http://www.gnu.org/licenses/>. */
#include <config.h>
#include <sys/stat.h>
#include "lisp.h"
#include "coding.h"
#include "termchar.h"
#include "termopts.h"
#include "frame.h"
#include "termhooks.h"
#include "macros.h"
#include "keyboard.h"
#include "window.h"
#include "commands.h"
#include "character.h"
#include "buffer.h"
#include "dispextern.h"
#include "syntax.h"
#include "intervals.h"
#include "keymap.h"
#include "blockinput.h"
#include "sysstdio.h"
#include "systime.h"
#include "atimer.h"
#include "process.h"
#include <errno.h>
#ifdef HAVE_PTHREAD
#include <pthread.h>
#endif
#ifdef MSDOS
#include "msdos.h"
#include <time.h>
#else /* not MSDOS */
#include <sys/ioctl.h>
#endif /* not MSDOS */
#if defined USABLE_FIONREAD && defined USG5_4
# include <sys/filio.h>
#endif
#include "syssignal.h"
#include <sys/types.h>
#include <unistd.h>
#include <fcntl.h>
#include <ignore-value.h>
#ifdef HAVE_WINDOW_SYSTEM
#include TERM_HEADER
#endif /* HAVE_WINDOW_SYSTEM */
/* Work around GCC bug 54561. */
#if GNUC_PREREQ (4, 3, 0)
# pragma GCC diagnostic ignored "-Wclobbered"
#endif
#ifdef WINDOWSNT
char const DEV_TTY[] = "CONOUT$";
#else
char const DEV_TTY[] = "/dev/tty";
#endif
/* Variables for blockinput.h: */
/* Positive if interrupt input is blocked right now. */
volatile int interrupt_input_blocked;
/* True means an input interrupt or alarm signal has arrived.
The maybe_quit function checks this. */
volatile bool pending_signals;
#define KBD_BUFFER_SIZE 4096
KBOARD *initial_kboard;
KBOARD *current_kboard;
static KBOARD *all_kboards;
/* True in the single-kboard state, false in the any-kboard state. */
static bool single_kboard;
#define NUM_RECENT_KEYS (300)
/* Index for storing next element into recent_keys. */
static int recent_keys_index;
/* Total number of elements stored into recent_keys. */
static int total_keys;
/* This vector holds the last NUM_RECENT_KEYS keystrokes. */
static Lisp_Object recent_keys;
/* Vector holding the key sequence that invoked the current command.
It is reused for each command, and it may be longer than the current
sequence; this_command_key_count indicates how many elements
actually mean something.
It's easier to staticpro a single Lisp_Object than an array. */
Lisp_Object this_command_keys;
ptrdiff_t this_command_key_count;
/* This vector is used as a buffer to record the events that were actually read
by read_key_sequence. */
static Lisp_Object raw_keybuf;
static int raw_keybuf_count;
#define GROW_RAW_KEYBUF \
if (raw_keybuf_count == ASIZE (raw_keybuf)) \
raw_keybuf = larger_vector (raw_keybuf, 1, -1)
/* Number of elements of this_command_keys
that precede this key sequence. */
static ptrdiff_t this_single_command_key_start;
#ifdef HAVE_STACK_OVERFLOW_HANDLING
/* For longjmp to recover from C stack overflow. */
sigjmp_buf return_to_command_loop;
/* Message displayed by Vtop_level when recovering from C stack overflow. */
static Lisp_Object recover_top_level_message;
#endif /* HAVE_STACK_OVERFLOW_HANDLING */
/* Message normally displayed by Vtop_level. */
static Lisp_Object regular_top_level_message;
/* For longjmp to where kbd input is being done. */
static sys_jmp_buf getcjmp;
/* True while displaying for echoing. Delays C-g throwing. */
static bool echoing;
/* Non-null means we can start echoing at the next input pause even
though there is something in the echo area. */
static struct kboard *ok_to_echo_at_next_pause;
/* The kboard last echoing, or null for none. Reset to 0 in
cancel_echoing. If non-null, and a current echo area message
exists, and echo_message_buffer is eq to the current message
buffer, we know that the message comes from echo_kboard. */
struct kboard *echo_kboard;
/* The buffer used for echoing. Set in echo_now, reset in
cancel_echoing. */
Lisp_Object echo_message_buffer;
/* Character that causes a quit. Normally C-g.
If we are running on an ordinary terminal, this must be an ordinary
ASCII char, since we want to make it our interrupt character.
If we are not running on an ordinary terminal, it still needs to be
an ordinary ASCII char. This character needs to be recognized in
the input interrupt handler. At this point, the keystroke is
represented as a struct input_event, while the desired quit
character is specified as a lispy event. The mapping from struct
input_events to lispy events cannot run in an interrupt handler,
and the reverse mapping is difficult for anything but ASCII
keystrokes.
FOR THESE ELABORATE AND UNSATISFYING REASONS, quit_char must be an
ASCII character. */
int quit_char;
/* Current depth in recursive edits. */
EMACS_INT command_loop_level;
/* If not Qnil, this is a switch-frame event which we decided to put
off until the end of a key sequence. This should be read as the
next command input, after any unread_command_events.
read_key_sequence uses this to delay switch-frame events until the
end of the key sequence; Fread_char uses it to put off switch-frame
events until a non-ASCII event is acceptable as input. */
Lisp_Object unread_switch_frame;
/* Last size recorded for a current buffer which is not a minibuffer. */
static ptrdiff_t last_non_minibuf_size;
uintmax_t num_input_events;
ptrdiff_t point_before_last_command_or_undo;
struct buffer *buffer_before_last_command_or_undo;
/* Value of num_nonmacro_input_events as of last auto save. */
static EMACS_INT last_auto_save;
/* The value of point when the last command was started. */
static ptrdiff_t last_point_position;
/* The frame in which the last input event occurred, or Qmacro if the
last event came from a macro. We use this to determine when to
generate switch-frame events. This may be cleared by functions
like Fselect_frame, to make sure that a switch-frame event is
generated by the next character.
FIXME: This is modified by a signal handler so it should be volatile.
It's exported to Lisp, though, so it can't simply be marked
'volatile' here. */
Lisp_Object internal_last_event_frame;
/* `read_key_sequence' stores here the command definition of the
key sequence that it reads. */
static Lisp_Object read_key_sequence_cmd;
static Lisp_Object read_key_sequence_remapped;
/* File in which we write all commands we read. */
static FILE *dribble;
/* True if input is available. */
bool input_pending;
/* True if more input was available last time we read an event.
Since redisplay can take a significant amount of time and is not
indispensable to perform the user's commands, when input arrives
"too fast", Emacs skips redisplay. More specifically, if the next
command has already been input when we finish the previous command,
we skip the intermediate redisplay.
This is useful to try and make sure Emacs keeps up with fast input
rates, such as auto-repeating keys. But in some cases, this proves
too conservative: we may end up disabling redisplay for the whole
duration of a key repetition, even though we could afford to
redisplay every once in a while.
So we "sample" the input_pending flag before running a command and
use *that* value after running the command to decide whether to
skip redisplay or not. This way, we only skip redisplay if we
really can't keep up with the repeat rate.
This only makes a difference if the next input arrives while running the
command, which is very unlikely if the command is executed quickly.
IOW this tends to avoid skipping redisplay after a long running command
(which is a case where skipping redisplay is not very useful since the
redisplay time is small compared to the time it took to run the command).
A typical use case is when scrolling. Scrolling time can be split into:
- Time to do jit-lock on the newly displayed portion of buffer.
- Time to run the actual scroll command.
- Time to perform the redisplay.
Jit-lock can happen either during the command or during the redisplay.
In the most painful cases, the jit-lock time is the one that dominates.
Also jit-lock can be tweaked (via jit-lock-defer) to delay its job, at the
cost of temporary inaccuracy in display and scrolling.
So without input_was_pending, what typically happens is the following:
- when the command starts, there's no pending input (yet).
- the scroll command triggers jit-lock.
- during the long jit-lock time the next input arrives.
- at the end of the command, we check input_pending and hence decide to
skip redisplay.
- we read the next input and start over.
End result: all the hard work of jit-locking is "wasted" since redisplay
doesn't actually happens (at least not before the input rate slows down).
With input_was_pending redisplay is still skipped if Emacs can't keep up
with the input rate, but if it can keep up just enough that there's no
input_pending when we begin the command, then redisplay is not skipped
which results in better feedback to the user. */
static bool input_was_pending;
/* Circular buffer for pre-read keyboard input. */
static union buffered_input_event kbd_buffer[KBD_BUFFER_SIZE];
/* Pointer to next available character in kbd_buffer.
If kbd_fetch_ptr == kbd_store_ptr, the buffer is empty.
This may be kbd_buffer + KBD_BUFFER_SIZE, meaning that the
next available char is in kbd_buffer[0]. */
static union buffered_input_event *kbd_fetch_ptr;
/* Pointer to next place to store character in kbd_buffer. This
may be kbd_buffer + KBD_BUFFER_SIZE, meaning that the next
character should go in kbd_buffer[0]. */
static union buffered_input_event *volatile kbd_store_ptr;
/* The above pair of variables forms a "queue empty" flag. When we
enqueue a non-hook event, we increment kbd_store_ptr. When we
dequeue a non-hook event, we increment kbd_fetch_ptr. We say that
there is input available if the two pointers are not equal.
Why not just have a flag set and cleared by the enqueuing and
dequeuing functions? Such a flag could be screwed up by interrupts
at inopportune times. */
static void recursive_edit_unwind (Lisp_Object buffer);
static Lisp_Object command_loop (void);
static void echo_now (void);
static ptrdiff_t echo_length (void);
/* Incremented whenever a timer is run. */
unsigned timers_run;
/* Address (if not 0) of struct timespec to zero out if a SIGIO interrupt
happens. */
struct timespec *input_available_clear_time;
/* True means use SIGIO interrupts; false means use CBREAK mode.
Default is true if INTERRUPT_INPUT is defined. */
bool interrupt_input;
/* Nonzero while interrupts are temporarily deferred during redisplay. */
bool interrupts_deferred;
/* The time when Emacs started being idle. */
static struct timespec timer_idleness_start_time;
/* After Emacs stops being idle, this saves the last value
of timer_idleness_start_time from when it was idle. */
static struct timespec timer_last_idleness_start_time;
\f
/* Global variable declarations. */
/* Flags for readable_events. */
#define READABLE_EVENTS_DO_TIMERS_NOW (1 << 0)
#define READABLE_EVENTS_FILTER_EVENTS (1 << 1)
#define READABLE_EVENTS_IGNORE_SQUEEZABLES (1 << 2)
/* Function for init_keyboard to call with no args (if nonzero). */
static void (*keyboard_init_hook) (void);
static bool get_input_pending (int);
static bool readable_events (int);
static Lisp_Object read_char_x_menu_prompt (Lisp_Object,
Lisp_Object, bool *);
static Lisp_Object read_char_minibuf_menu_prompt (int, Lisp_Object);
static Lisp_Object make_lispy_event (struct input_event *);
static Lisp_Object make_lispy_movement (struct frame *, Lisp_Object,
enum scroll_bar_part,
Lisp_Object, Lisp_Object,
Time);
static Lisp_Object modify_event_symbol (ptrdiff_t, int, Lisp_Object,
Lisp_Object, const char *const *,
Lisp_Object *, ptrdiff_t);
static Lisp_Object make_lispy_switch_frame (Lisp_Object);
static Lisp_Object make_lispy_focus_in (Lisp_Object);
#ifdef HAVE_WINDOW_SYSTEM
static Lisp_Object make_lispy_focus_out (Lisp_Object);
#endif /* HAVE_WINDOW_SYSTEM */
static bool help_char_p (Lisp_Object);
static void save_getcjmp (sys_jmp_buf);
static void restore_getcjmp (sys_jmp_buf);
static Lisp_Object apply_modifiers (int, Lisp_Object);
static void restore_kboard_configuration (int);
static void handle_interrupt (bool);
static _Noreturn void quit_throw_to_read_char (bool);
static void timer_start_idle (void);
static void timer_stop_idle (void);
static void timer_resume_idle (void);
static void deliver_user_signal (int);
static char *find_user_signal_name (int);
static void store_user_signal_events (void);
/* These setters are used only in this file, so they can be private. */
static void
kset_echo_string (struct kboard *kb, Lisp_Object val)
{
kb->echo_string_ = val;
}
static void
kset_echo_prompt (struct kboard *kb, Lisp_Object val)
{
kb->echo_prompt_ = val;
}
static void
kset_kbd_queue (struct kboard *kb, Lisp_Object val)
{
kb->kbd_queue_ = val;
}
static void
kset_keyboard_translate_table (struct kboard *kb, Lisp_Object val)
{
kb->Vkeyboard_translate_table_ = val;
}
static void
kset_last_prefix_arg (struct kboard *kb, Lisp_Object val)
{
kb->Vlast_prefix_arg_ = val;
}
static void
kset_last_repeatable_command (struct kboard *kb, Lisp_Object val)
{
kb->Vlast_repeatable_command_ = val;
}
static void
kset_local_function_key_map (struct kboard *kb, Lisp_Object val)
{
kb->Vlocal_function_key_map_ = val;
}
static void
kset_overriding_terminal_local_map (struct kboard *kb, Lisp_Object val)
{
kb->Voverriding_terminal_local_map_ = val;
}
static void
kset_real_last_command (struct kboard *kb, Lisp_Object val)
{
kb->Vreal_last_command_ = val;
}
static void
kset_system_key_syms (struct kboard *kb, Lisp_Object val)
{
kb->system_key_syms_ = val;
}
\f
static bool
echo_keystrokes_p (void)
{
return (FLOATP (Vecho_keystrokes) ? XFLOAT_DATA (Vecho_keystrokes) > 0.0
: INTEGERP (Vecho_keystrokes) ? XINT (Vecho_keystrokes) > 0
: false);
}
/* Add C to the echo string, without echoing it immediately. C can be
a character, which is pretty-printed, or a symbol, whose name is
printed. */
static void
echo_add_key (Lisp_Object c)
{
char initbuf[KEY_DESCRIPTION_SIZE + 100];
ptrdiff_t size = sizeof initbuf;
char *buffer = initbuf;
char *ptr = buffer;
Lisp_Object echo_string = KVAR (current_kboard, echo_string);
USE_SAFE_ALLOCA;
if (STRINGP (echo_string) && SCHARS (echo_string) > 0)
/* Add a space at the end as a separator between keys. */
ptr++[0] = ' ';
/* If someone has passed us a composite event, use its head symbol. */
c = EVENT_HEAD (c);
if (INTEGERP (c))
ptr = push_key_description (XINT (c), ptr);
else if (SYMBOLP (c))
{
Lisp_Object name = SYMBOL_NAME (c);
ptrdiff_t nbytes = SBYTES (name);
if (size - (ptr - buffer) < nbytes)
{
ptrdiff_t offset = ptr - buffer;
size = max (2 * size, size + nbytes);
buffer = SAFE_ALLOCA (size);
ptr = buffer + offset;
}
ptr += copy_text (SDATA (name), (unsigned char *) ptr, nbytes,
STRING_MULTIBYTE (name), 1);
}
if ((NILP (echo_string) || SCHARS (echo_string) == 0)
&& help_char_p (c))
{
static const char text[] = " (Type ? for further options)";
int len = sizeof text - 1;
if (size - (ptr - buffer) < len)
{
ptrdiff_t offset = ptr - buffer;
size += len;
buffer = SAFE_ALLOCA (size);
ptr = buffer + offset;
}
memcpy (ptr, text, len);
ptr += len;
}
kset_echo_string
(current_kboard,
concat2 (echo_string, make_string (buffer, ptr - buffer)));
SAFE_FREE ();
}
/* Temporarily add a dash to the end of the echo string if it's not
empty, so that it serves as a mini-prompt for the very next
character. */
static void
echo_dash (void)
{
/* Do nothing if not echoing at all. */
if (NILP (KVAR (current_kboard, echo_string)))
return;
if (!current_kboard->immediate_echo
&& SCHARS (KVAR (current_kboard, echo_string)) == 0)
return;
/* Do nothing if we just printed a prompt. */
if (STRINGP (KVAR (current_kboard, echo_prompt))
&& (SCHARS (KVAR (current_kboard, echo_prompt))
== SCHARS (KVAR (current_kboard, echo_string))))
return;
/* Do nothing if we have already put a dash at the end. */
if (SCHARS (KVAR (current_kboard, echo_string)) > 1)
{
Lisp_Object last_char, prev_char, idx;
idx = make_number (SCHARS (KVAR (current_kboard, echo_string)) - 2);
prev_char = Faref (KVAR (current_kboard, echo_string), idx);
idx = make_number (SCHARS (KVAR (current_kboard, echo_string)) - 1);
last_char = Faref (KVAR (current_kboard, echo_string), idx);
if (XINT (last_char) == '-' && XINT (prev_char) != ' ')
return;
}
/* Put a dash at the end of the buffer temporarily,
but make it go away when the next character is added. */
AUTO_STRING (dash, "-");
kset_echo_string (current_kboard,
concat2 (KVAR (current_kboard, echo_string), dash));
echo_now ();
}
static void
echo_update (void)
{
if (current_kboard->immediate_echo)
{
ptrdiff_t i;
Lisp_Object prompt = KVAR (current_kboard, echo_prompt);
Lisp_Object prefix = call0 (Qinternal_echo_keystrokes_prefix);
kset_echo_string (current_kboard,
NILP (prompt) ? prefix
: NILP (prefix) ? prompt
: concat2 (prompt, prefix));
for (i = 0; i < this_command_key_count; i++)
{
Lisp_Object c;
c = AREF (this_command_keys, i);
if (! (EVENT_HAS_PARAMETERS (c)
&& EQ (EVENT_HEAD_KIND (EVENT_HEAD (c)), Qmouse_movement)))
echo_add_key (c);
}
echo_now ();
}
}
/* Display the current echo string, and begin echoing if not already
doing so. */
static void
echo_now (void)
{
if (!current_kboard->immediate_echo
/* This test breaks calls that use `echo_now' to display the echo_prompt.
&& echo_keystrokes_p () */)
{
current_kboard->immediate_echo = true;
echo_update ();
/* Put a dash at the end to invite the user to type more. */
echo_dash ();
}
echoing = true;
/* FIXME: Use call (Qmessage) so it can be advised (e.g. emacspeak). */
message3_nolog (KVAR (current_kboard, echo_string));
echoing = false;
/* Record in what buffer we echoed, and from which kboard. */
echo_message_buffer = echo_area_buffer[0];
echo_kboard = current_kboard;
if (waiting_for_input && !NILP (Vquit_flag))
quit_throw_to_read_char (0);
}
/* Turn off echoing, for the start of a new command. */
void
cancel_echoing (void)
{
current_kboard->immediate_echo = false;
kset_echo_prompt (current_kboard, Qnil);
kset_echo_string (current_kboard, Qnil);
ok_to_echo_at_next_pause = NULL;
echo_kboard = NULL;
echo_message_buffer = Qnil;
}
/* Return the length of the current echo string. */
static ptrdiff_t
echo_length (void)
{
return (STRINGP (KVAR (current_kboard, echo_string))
? SCHARS (KVAR (current_kboard, echo_string))
: 0);
}
/* Truncate the current echo message to its first LEN chars.
This and echo_char get used by read_key_sequence when the user
switches frames while entering a key sequence. */
static void
echo_truncate (ptrdiff_t nchars)
{
Lisp_Object es = KVAR (current_kboard, echo_string);
if (STRINGP (es) && SCHARS (es) > nchars)
kset_echo_string (current_kboard,
Fsubstring (KVAR (current_kboard, echo_string),
make_number (0), make_number (nchars)));
truncate_echo_area (nchars);
}
\f
/* Functions for manipulating this_command_keys. */
static void
add_command_key (Lisp_Object key)
{
if (this_command_key_count >= ASIZE (this_command_keys))
this_command_keys = larger_vector (this_command_keys, 1, -1);
ASET (this_command_keys, this_command_key_count, key);
++this_command_key_count;
}
\f
Lisp_Object
recursive_edit_1 (void)
{
ptrdiff_t count = SPECPDL_INDEX ();
Lisp_Object val;
if (command_loop_level > 0)
{
specbind (Qstandard_output, Qt);
specbind (Qstandard_input, Qt);
}
#ifdef HAVE_WINDOW_SYSTEM
/* The command loop has started an hourglass timer, so we have to
cancel it here, otherwise it will fire because the recursive edit
can take some time. Do not check for display_hourglass_p here,
because it could already be nil. */
cancel_hourglass ();
#endif
/* This function may have been called from a debugger called from
within redisplay, for instance by Edebugging a function called
from fontification-functions. We want to allow redisplay in
the debugging session.
The recursive edit is left with a `(throw exit ...)'. The `exit'
tag is not caught anywhere in redisplay, i.e. when we leave the
recursive edit, the original redisplay leading to the recursive
edit will be unwound. The outcome should therefore be safe. */
specbind (Qinhibit_redisplay, Qnil);
redisplaying_p = 0;
/* This variable stores buffers that have changed so that an undo
boundary can be added. specbind this so that changes in the
recursive edit will not result in undo boundaries in buffers
changed before we entered there recursive edit.
See Bug #23632.
*/
specbind (Qundo_auto__undoably_changed_buffers, Qnil);
val = command_loop ();
if (EQ (val, Qt))
quit ();
/* Handle throw from read_minibuf when using minibuffer
while it's active but we're in another window. */
if (STRINGP (val))
xsignal1 (Qerror, val);
return unbind_to (count, Qnil);
}
/* When an auto-save happens, record the "time", and don't do again soon. */
void
record_auto_save (void)
{
last_auto_save = num_nonmacro_input_events;
}
/* Make an auto save happen as soon as possible at command level. */
#ifdef SIGDANGER
void
force_auto_save_soon (void)
{
last_auto_save = - auto_save_interval - 1;
record_asynch_buffer_change ();
}
#endif
\f
DEFUN ("recursive-edit", Frecursive_edit, Srecursive_edit, 0, 0, "",
doc: /* Invoke the editor command loop recursively.
To get out of the recursive edit, a command can throw to `exit' -- for
instance (throw \\='exit nil).
If you throw a value other than t, `recursive-edit' returns normally
to the function that called it. Throwing a t value causes
`recursive-edit' to quit, so that control returns to the command loop
one level up.
This function is called by the editor initialization to begin editing. */)
(void)
{
ptrdiff_t count = SPECPDL_INDEX ();
Lisp_Object buffer;
/* If we enter while input is blocked, don't lock up here.
This may happen through the debugger during redisplay. */
if (input_blocked_p ())
return Qnil;
if (command_loop_level >= 0
&& current_buffer != XBUFFER (XWINDOW (selected_window)->contents))
buffer = Fcurrent_buffer ();
else
buffer = Qnil;
/* Don't do anything interesting between the increment and the
record_unwind_protect! Otherwise, we could get distracted and
never decrement the counter again. */
command_loop_level++;
update_mode_lines = 17;
record_unwind_protect (recursive_edit_unwind, buffer);
/* If we leave recursive_edit_1 below with a `throw' for instance,
like it is done in the splash screen display, we have to
make sure that we restore single_kboard as command_loop_1
would have done if it were left normally. */
if (command_loop_level > 0)
temporarily_switch_to_single_kboard (SELECTED_FRAME ());
recursive_edit_1 ();
return unbind_to (count, Qnil);
}
void
recursive_edit_unwind (Lisp_Object buffer)
{
if (BUFFERP (buffer))
Fset_buffer (buffer);
command_loop_level--;
update_mode_lines = 18;
}
\f
#if 0 /* These two functions are now replaced with
temporarily_switch_to_single_kboard. */
static void
any_kboard_state ()
{
#if 0 /* Theory: if there's anything in Vunread_command_events,
it will right away be read by read_key_sequence,
and then if we do switch KBOARDS, it will go into the side
queue then. So we don't need to do anything special here -- rms. */
if (CONSP (Vunread_command_events))
{
current_kboard->kbd_queue
= nconc2 (Vunread_command_events, current_kboard->kbd_queue);
current_kboard->kbd_queue_has_data = true;
}
Vunread_command_events = Qnil;
#endif
single_kboard = false;
}
/* Switch to the single-kboard state, making current_kboard
the only KBOARD from which further input is accepted. */
void
single_kboard_state ()
{
single_kboard = true;
}
#endif
/* If we're in single_kboard state for kboard KBOARD,
get out of it. */
void
not_single_kboard_state (KBOARD *kboard)
{
if (kboard == current_kboard)
single_kboard = false;
}
/* Maintain a stack of kboards, so other parts of Emacs
can switch temporarily to the kboard of a given frame
and then revert to the previous status. */
struct kboard_stack
{
KBOARD *kboard;
struct kboard_stack *next;
};
static struct kboard_stack *kboard_stack;
void
push_kboard (struct kboard *k)
{
struct kboard_stack *p = xmalloc (sizeof *p);
p->next = kboard_stack;
p->kboard = current_kboard;
kboard_stack = p;
current_kboard = k;
}
void
pop_kboard (void)
{
struct terminal *t;
struct kboard_stack *p = kboard_stack;
bool found = false;
for (t = terminal_list; t; t = t->next_terminal)
{
if (t->kboard == p->kboard)
{
current_kboard = p->kboard;
found = true;
break;
}
}
if (!found)
{
/* The terminal we remembered has been deleted. */
current_kboard = FRAME_KBOARD (SELECTED_FRAME ());
single_kboard = false;
}
kboard_stack = p->next;
xfree (p);
}
/* Switch to single_kboard mode, making current_kboard the only KBOARD
from which further input is accepted. If F is non-nil, set its
KBOARD as the current keyboard.
This function uses record_unwind_protect_int to return to the previous
state later.
If Emacs is already in single_kboard mode, and F's keyboard is
locked, then this function will throw an error. */
void
temporarily_switch_to_single_kboard (struct frame *f)
{
bool was_locked = single_kboard;
if (was_locked)
{
if (f != NULL && FRAME_KBOARD (f) != current_kboard)
/* We can not switch keyboards while in single_kboard mode.
In rare cases, Lisp code may call `recursive-edit' (or
`read-minibuffer' or `y-or-n-p') after it switched to a
locked frame. For example, this is likely to happen
when server.el connects to a new terminal while Emacs is in
single_kboard mode. It is best to throw an error instead
of presenting the user with a frozen screen. */
error ("Terminal %d is locked, cannot read from it",
FRAME_TERMINAL (f)->id);
else
/* This call is unnecessary, but helps
`restore_kboard_configuration' discover if somebody changed
`current_kboard' behind our back. */
push_kboard (current_kboard);
}
else if (f != NULL)
current_kboard = FRAME_KBOARD (f);
single_kboard = true;
record_unwind_protect_int (restore_kboard_configuration, was_locked);
}
#if 0 /* This function is not needed anymore. */
void
record_single_kboard_state ()
{
if (single_kboard)
push_kboard (current_kboard);
record_unwind_protect_int (restore_kboard_configuration, single_kboard);
}
#endif
static void
restore_kboard_configuration (int was_locked)
{
single_kboard = was_locked;
if (was_locked)
{
struct kboard *prev = current_kboard;
pop_kboard ();
/* The pop should not change the kboard. */
if (single_kboard && current_kboard != prev)
emacs_abort ();
}
}
\f
/* Handle errors that are not handled at inner levels
by printing an error message and returning to the editor command loop. */
static Lisp_Object
cmd_error (Lisp_Object data)
{
Lisp_Object old_level, old_length;
char macroerror[sizeof "After..kbd macro iterations: "
+ INT_STRLEN_BOUND (EMACS_INT)];
#ifdef HAVE_WINDOW_SYSTEM
if (display_hourglass_p)
cancel_hourglass ();
#endif
if (!NILP (executing_kbd_macro))
{
if (executing_kbd_macro_iterations == 1)
sprintf (macroerror, "After 1 kbd macro iteration: ");
else
sprintf (macroerror, "After %"pI"d kbd macro iterations: ",
executing_kbd_macro_iterations);
}
else
*macroerror = 0;
Vstandard_output = Qt;
Vstandard_input = Qt;
Vexecuting_kbd_macro = Qnil;
executing_kbd_macro = Qnil;
kset_prefix_arg (current_kboard, Qnil);
kset_last_prefix_arg (current_kboard, Qnil);
cancel_echoing ();
/* Avoid unquittable loop if data contains a circular list. */
old_level = Vprint_level;
old_length = Vprint_length;
XSETFASTINT (Vprint_level, 10);
XSETFASTINT (Vprint_length, 10);
cmd_error_internal (data, macroerror);
Vprint_level = old_level;
Vprint_length = old_length;
Vquit_flag = Qnil;
Vinhibit_quit = Qnil;
return make_number (0);
}
/* Take actions on handling an error. DATA is the data that describes
the error.
CONTEXT is a C-string containing ASCII characters only which
describes the context in which the error happened. If we need to
generalize CONTEXT to allow multibyte characters, make it a Lisp
string. */
void
cmd_error_internal (Lisp_Object data, const char *context)
{
/* The immediate context is not interesting for Quits,
since they are asynchronous. */
if (EQ (XCAR (data), Qquit))
Vsignaling_function = Qnil;
Vquit_flag = Qnil;
Vinhibit_quit = Qt;
/* Use user's specified output function if any. */
if (!NILP (Vcommand_error_function))
call3 (Vcommand_error_function, data,
context ? build_string (context) : empty_unibyte_string,
Vsignaling_function);
Vsignaling_function = Qnil;
}
DEFUN ("command-error-default-function", Fcommand_error_default_function,
Scommand_error_default_function, 3, 3, 0,
doc: /* Produce default output for unhandled error message.
Default value of `command-error-function'. */)
(Lisp_Object data, Lisp_Object context, Lisp_Object signal)
{
struct frame *sf = SELECTED_FRAME ();
CHECK_STRING (context);
/* If the window system or terminal frame hasn't been initialized
yet, or we're not interactive, write the message to stderr and exit. */
if (!sf->glyphs_initialized_p
/* The initial frame is a special non-displaying frame. It
will be current in daemon mode when there are no frames
to display, and in non-daemon mode before the real frame
has finished initializing. If an error is thrown in the
latter case while creating the frame, then the frame
will never be displayed, so the safest thing to do is
write to stderr and quit. In daemon mode, there are
many other potential errors that do not prevent frames
from being created, so continuing as normal is better in
that case. */
|| (!IS_DAEMON && FRAME_INITIAL_P (sf))
|| noninteractive)
{
print_error_message (data, Qexternal_debugging_output,
SSDATA (context), signal);
Fterpri (Qexternal_debugging_output, Qnil);
Fkill_emacs (make_number (-1));
}
else
{
clear_message (1, 0);
Fdiscard_input ();
message_log_maybe_newline ();
bitch_at_user ();
print_error_message (data, Qt, SSDATA (context), signal);
}
return Qnil;
}
static Lisp_Object command_loop_2 (Lisp_Object);
static Lisp_Object top_level_1 (Lisp_Object);
/* Entry to editor-command-loop.
This level has the catches for exiting/returning to editor command loop.
It returns nil to exit recursive edit, t to abort it. */
Lisp_Object
command_loop (void)
{
#ifdef HAVE_STACK_OVERFLOW_HANDLING
/* At least on GNU/Linux, saving signal mask is important here. */
if (sigsetjmp (return_to_command_loop, 1) != 0)
{
/* Comes here from handle_sigsegv (see sysdep.c) and
stack_overflow_handler (see w32fns.c). */
#ifdef WINDOWSNT
w32_reset_stack_overflow_guard ();
#endif
init_eval ();
Vinternal__top_level_message = recover_top_level_message;
}
else
Vinternal__top_level_message = regular_top_level_message;
#endif /* HAVE_STACK_OVERFLOW_HANDLING */
if (command_loop_level > 0 || minibuf_level > 0)
{
Lisp_Object val;
val = internal_catch (Qexit, command_loop_2, Qnil);
executing_kbd_macro = Qnil;
return val;
}
else
while (1)
{
internal_catch (Qtop_level, top_level_1, Qnil);
internal_catch (Qtop_level, command_loop_2, Qnil);
executing_kbd_macro = Qnil;
/* End of file in -batch run causes exit here. */
if (noninteractive)
Fkill_emacs (Qt);
}
}
/* Here we catch errors in execution of commands within the
editing loop, and reenter the editing loop.
When there is an error, cmd_error runs and returns a non-nil
value to us. A value of nil means that command_loop_1 itself
returned due to end of file (or end of kbd macro). */
static Lisp_Object
command_loop_2 (Lisp_Object ignore)
{
register Lisp_Object val;
do
val = internal_condition_case (command_loop_1, Qerror, cmd_error);
while (!NILP (val));
return Qnil;
}
static Lisp_Object
top_level_2 (void)
{
return Feval (Vtop_level, Qnil);
}
static Lisp_Object
top_level_1 (Lisp_Object ignore)
{
/* On entry to the outer level, run the startup file. */
if (!NILP (Vtop_level))
internal_condition_case (top_level_2, Qerror, cmd_error);
else if (!NILP (Vpurify_flag))
message1 ("Bare impure Emacs (standard Lisp code not loaded)");
else
message1 ("Bare Emacs (standard Lisp code not loaded)");
return Qnil;
}
DEFUN ("top-level", Ftop_level, Stop_level, 0, 0, "",
doc: /* Exit all recursive editing levels.
This also exits all active minibuffers. */
attributes: noreturn)
(void)
{
#ifdef HAVE_WINDOW_SYSTEM
if (display_hourglass_p)
cancel_hourglass ();
#endif
/* Unblock input if we enter with input blocked. This may happen if
redisplay traps e.g. during tool-bar update with input blocked. */
totally_unblock_input ();
Fthrow (Qtop_level, Qnil);
}
static _Noreturn void
user_error (const char *msg)
{
xsignal1 (Quser_error, build_string (msg));
}
/* _Noreturn will be added to prototype by make-docfile. */
DEFUN ("exit-recursive-edit", Fexit_recursive_edit, Sexit_recursive_edit, 0, 0, "",
doc: /* Exit from the innermost recursive edit or minibuffer. */
attributes: noreturn)
(void)
{
if (command_loop_level > 0 || minibuf_level > 0)
Fthrow (Qexit, Qnil);
user_error ("No recursive edit is in progress");
}
/* _Noreturn will be added to prototype by make-docfile. */
DEFUN ("abort-recursive-edit", Fabort_recursive_edit, Sabort_recursive_edit, 0, 0, "",
doc: /* Abort the command that requested this recursive edit or minibuffer input. */
attributes: noreturn)
(void)
{
if (command_loop_level > 0 || minibuf_level > 0)
Fthrow (Qexit, Qt);
user_error ("No recursive edit is in progress");
}
\f
/* Restore mouse tracking enablement. See Ftrack_mouse for the only use
of this function. */
static void
tracking_off (Lisp_Object old_value)
{
do_mouse_tracking = old_value;
if (NILP (old_value))
{
/* Redisplay may have been preempted because there was input
available, and it assumes it will be called again after the
input has been processed. If the only input available was
the sort that we have just disabled, then we need to call
redisplay. */
if (!readable_events (READABLE_EVENTS_DO_TIMERS_NOW))
{
redisplay_preserve_echo_area (6);
get_input_pending (READABLE_EVENTS_DO_TIMERS_NOW);
}
}
}
DEFUN ("internal--track-mouse", Ftrack_mouse, Strack_mouse, 1, 1, 0,
doc: /* Call BODYFUN with mouse movement events enabled. */)
(Lisp_Object bodyfun)
{
ptrdiff_t count = SPECPDL_INDEX ();
Lisp_Object val;
record_unwind_protect (tracking_off, do_mouse_tracking);
do_mouse_tracking = Qt;
val = call0 (bodyfun);
return unbind_to (count, val);
}
/* If mouse has moved on some frame, return one of those frames.
Return 0 otherwise.
If ignore_mouse_drag_p is non-zero, ignore (implicit) mouse movement
after resizing the tool-bar window. */
bool ignore_mouse_drag_p;
static struct frame *
some_mouse_moved (void)
{
Lisp_Object tail, frame;
if (ignore_mouse_drag_p)
{
/* ignore_mouse_drag_p = 0; */
return 0;
}
FOR_EACH_FRAME (tail, frame)
{
if (XFRAME (frame)->mouse_moved)
return XFRAME (frame);
}
return 0;
}
\f
/* This is the actual command reading loop,
sans error-handling encapsulation. */
static int read_key_sequence (Lisp_Object *, int, Lisp_Object,
bool, bool, bool, bool);
static void adjust_point_for_property (ptrdiff_t, bool);
Lisp_Object
command_loop_1 (void)
{
EMACS_INT prev_modiff = 0;
struct buffer *prev_buffer = NULL;
bool already_adjusted = 0;
kset_prefix_arg (current_kboard, Qnil);
kset_last_prefix_arg (current_kboard, Qnil);
Vdeactivate_mark = Qnil;
waiting_for_input = false;
cancel_echoing ();
this_command_key_count = 0;
this_single_command_key_start = 0;
if (NILP (Vmemory_full))
{
/* Make sure this hook runs after commands that get errors and
throw to top level. */
/* Note that the value cell will never directly contain nil
if the symbol is a local variable. */
if (!NILP (Vpost_command_hook) && !NILP (Vrun_hooks))
safe_run_hooks (Qpost_command_hook);
/* If displaying a message, resize the echo area window to fit
that message's size exactly. */
if (!NILP (echo_area_buffer[0]))
resize_echo_area_exactly ();
/* If there are warnings waiting, process them. */
if (!NILP (Vdelayed_warnings_list))
safe_run_hooks (Qdelayed_warnings_hook);
if (!NILP (Vdeferred_action_list))
safe_run_hooks (Qdeferred_action_function);
}
/* Do this after running Vpost_command_hook, for consistency. */
kset_last_command (current_kboard, Vthis_command);
kset_real_last_command (current_kboard, Vreal_this_command);
if (!CONSP (last_command_event))
kset_last_repeatable_command (current_kboard, Vreal_this_command);
while (1)
{
Lisp_Object cmd;
Lisp_Object keybuf[30];
int i;
if (! FRAME_LIVE_P (XFRAME (selected_frame)))
Fkill_emacs (Qnil);
/* Make sure the current window's buffer is selected. */
set_buffer_internal (XBUFFER (XWINDOW (selected_window)->contents));
/* Display any malloc warning that just came out. Use while because
displaying one warning can cause another. */
while (pending_malloc_warning)
display_malloc_warning ();
Vdeactivate_mark = Qnil;
/* Don't ignore mouse movements for more than a single command
loop. (This flag is set in xdisp.c whenever the tool bar is
resized, because the resize moves text up or down, and would
generate false mouse drag events if we don't ignore them.) */
ignore_mouse_drag_p = 0;
/* If minibuffer on and echo area in use,
wait a short time and redraw minibuffer. */
if (minibuf_level
&& !NILP (echo_area_buffer[0])
&& EQ (minibuf_window, echo_area_window)
&& NUMBERP (Vminibuffer_message_timeout))
{
/* Bind inhibit-quit to t so that C-g gets read in
rather than quitting back to the minibuffer. */
ptrdiff_t count = SPECPDL_INDEX ();
specbind (Qinhibit_quit, Qt);
sit_for (Vminibuffer_message_timeout, 0, 2);
/* Clear the echo area. */
message1 (0);
safe_run_hooks (Qecho_area_clear_hook);
unbind_to (count, Qnil);
/* If a C-g came in before, treat it as input now. */
if (!NILP (Vquit_flag))
{
Vquit_flag = Qnil;
Vunread_command_events = list1 (make_number (quit_char));
}
}
/* If it has changed current-menubar from previous value,
really recompute the menubar from the value. */
if (! NILP (Vlucid_menu_bar_dirty_flag)
&& !NILP (Ffboundp (Qrecompute_lucid_menubar)))
call0 (Qrecompute_lucid_menubar);
Vthis_command = Qnil;
Vreal_this_command = Qnil;
Vthis_original_command = Qnil;
Vthis_command_keys_shift_translated = Qnil;
/* Read next key sequence; i gets its length. */
i = read_key_sequence (keybuf, ARRAYELTS (keybuf),
Qnil, 0, 1, 1, 0);
/* A filter may have run while we were reading the input. */
if (! FRAME_LIVE_P (XFRAME (selected_frame)))
Fkill_emacs (Qnil);
set_buffer_internal (XBUFFER (XWINDOW (selected_window)->contents));
++num_input_keys;
/* Now we have read a key sequence of length I,
or else I is 0 and we found end of file. */
if (i == 0) /* End of file -- happens only in */
return Qnil; /* a kbd macro, at the end. */
/* -1 means read_key_sequence got a menu that was rejected.
Just loop around and read another command. */
if (i == -1)
{
cancel_echoing ();
this_command_key_count = 0;
this_single_command_key_start = 0;
goto finalize;
}
last_command_event = keybuf[i - 1];
/* If the previous command tried to force a specific window-start,
forget about that, in case this command moves point far away
from that position. But also throw away beg_unchanged and
end_unchanged information in that case, so that redisplay will
update the whole window properly. */
if (XWINDOW (selected_window)->force_start)
{
struct buffer *b;
XWINDOW (selected_window)->force_start = 0;
b = XBUFFER (XWINDOW (selected_window)->contents);
BUF_BEG_UNCHANGED (b) = BUF_END_UNCHANGED (b) = 0;
}
cmd = read_key_sequence_cmd;
if (!NILP (Vexecuting_kbd_macro))
{
if (!NILP (Vquit_flag))
{
Vexecuting_kbd_macro = Qt;
maybe_quit (); /* Make some noise. */
/* Will return since macro now empty. */
}
}
/* Do redisplay processing after this command except in special
cases identified below. */
prev_buffer = current_buffer;
prev_modiff = MODIFF;
last_point_position = PT;
/* By default, we adjust point to a boundary of a region that
has such a property that should be treated intangible
(e.g. composition, display). But, some commands will set
this variable differently. */
Vdisable_point_adjustment = Qnil;
/* Process filters and timers may have messed with deactivate-mark.
reset it before we execute the command. */
Vdeactivate_mark = Qnil;
/* Remap command through active keymaps. */
Vthis_original_command = cmd;
if (!NILP (read_key_sequence_remapped))
cmd = read_key_sequence_remapped;
/* Execute the command. */
{
total_keys += total_keys < NUM_RECENT_KEYS;
ASET (recent_keys, recent_keys_index,
Fcons (Qnil, cmd));
if (++recent_keys_index >= NUM_RECENT_KEYS)
recent_keys_index = 0;
}
Vthis_command = cmd;
Vreal_this_command = cmd;
safe_run_hooks (Qpre_command_hook);
already_adjusted = 0;
if (NILP (Vthis_command))
/* nil means key is undefined. */
call0 (Qundefined);
else
{
/* Here for a command that isn't executed directly. */
#ifdef HAVE_WINDOW_SYSTEM
ptrdiff_t scount = SPECPDL_INDEX ();
if (display_hourglass_p
&& NILP (Vexecuting_kbd_macro))
{
record_unwind_protect_void (cancel_hourglass);
start_hourglass ();
}
#endif
/* Ensure that we have added appropriate undo-boundaries as a
result of changes from the last command. */
call0 (Qundo_auto__add_boundary);
/* Record point and buffer, so we can put point into the undo
information if necessary. */
point_before_last_command_or_undo = PT;
buffer_before_last_command_or_undo = current_buffer;
call1 (Qcommand_execute, Vthis_command);
#ifdef HAVE_WINDOW_SYSTEM
/* Do not check display_hourglass_p here, because
`command-execute' could change it, but we should cancel
hourglass cursor anyway.
But don't cancel the hourglass within a macro
just because a command in the macro finishes. */
if (NILP (Vexecuting_kbd_macro))
unbind_to (scount, Qnil);
#endif
}
kset_last_prefix_arg (current_kboard, Vcurrent_prefix_arg);
safe_run_hooks (Qpost_command_hook);
/* If displaying a message, resize the echo area window to fit
that message's size exactly. */
if (!NILP (echo_area_buffer[0]))
resize_echo_area_exactly ();
/* If there are warnings waiting, process them. */
if (!NILP (Vdelayed_warnings_list))
safe_run_hooks (Qdelayed_warnings_hook);
safe_run_hooks (Qdeferred_action_function);
kset_last_command (current_kboard, Vthis_command);
kset_real_last_command (current_kboard, Vreal_this_command);
if (!CONSP (last_command_event))
kset_last_repeatable_command (current_kboard, Vreal_this_command);
this_command_key_count = 0;
this_single_command_key_start = 0;
if (current_kboard->immediate_echo
&& !NILP (call0 (Qinternal_echo_keystrokes_prefix)))
{
current_kboard->immediate_echo = false;
/* Refresh the echo message. */
echo_now ();
}
else
cancel_echoing ();
if (!NILP (BVAR (current_buffer, mark_active))
&& !NILP (Vrun_hooks))
{
/* In Emacs 22, setting transient-mark-mode to `only' was a
way of turning it on for just one command. This usage is
obsolete, but support it anyway. */
if (EQ (Vtransient_mark_mode, Qidentity))
Vtransient_mark_mode = Qnil;
else if (EQ (Vtransient_mark_mode, Qonly))
Vtransient_mark_mode = Qidentity;
if (!NILP (Vdeactivate_mark))
/* If `select-active-regions' is non-nil, this call to
`deactivate-mark' also sets the PRIMARY selection. */
call0 (Qdeactivate_mark);
else
{
/* Even if not deactivating the mark, set PRIMARY if
`select-active-regions' is non-nil. */
if (!NILP (Fwindow_system (Qnil))
/* Even if mark_active is non-nil, the actual buffer
marker may not have been set yet (Bug#7044). */
&& XMARKER (BVAR (current_buffer, mark))->buffer
&& (EQ (Vselect_active_regions, Qonly)
? EQ (CAR_SAFE (Vtransient_mark_mode), Qonly)
: (!NILP (Vselect_active_regions)
&& !NILP (Vtransient_mark_mode)))
&& NILP (Fmemq (Vthis_command,
Vselection_inhibit_update_commands)))
{
Lisp_Object txt
= call1 (Fsymbol_value (Qregion_extract_function), Qnil);
if (XINT (Flength (txt)) > 0)
/* Don't set empty selections. */
call2 (Qgui_set_selection, QPRIMARY, txt);
}
if (current_buffer != prev_buffer || MODIFF != prev_modiff)
run_hook (intern ("activate-mark-hook"));
}
Vsaved_region_selection = Qnil;
}
finalize:
if (current_buffer == prev_buffer
&& XBUFFER (XWINDOW (selected_window)->contents) == current_buffer
&& last_point_position != PT
&& NILP (Vdisable_point_adjustment)
&& NILP (Vglobal_disable_point_adjustment))
{
if (last_point_position > BEGV
&& last_point_position < ZV
&& (composition_adjust_point (last_point_position,
last_point_position)
!= last_point_position))
/* The last point was temporarily set within a grapheme
cluster to prevent automatic composition. To recover
the automatic composition, we must update the
display. */
windows_or_buffers_changed = 21;
if (!already_adjusted)
adjust_point_for_property (last_point_position,
MODIFF != prev_modiff);
}
/* Install chars successfully executed in kbd macro. */
if (!NILP (KVAR (current_kboard, defining_kbd_macro))
&& NILP (KVAR (current_kboard, Vprefix_arg)))
finalize_kbd_macro_chars ();
}
}
Lisp_Object
read_menu_command (void)
{
Lisp_Object keybuf[30];
ptrdiff_t count = SPECPDL_INDEX ();
int i;
/* We don't want to echo the keystrokes while navigating the
menus. */
specbind (Qecho_keystrokes, make_number (0));
i = read_key_sequence (keybuf, ARRAYELTS (keybuf),
Qnil, 0, 1, 1, 1);
unbind_to (count, Qnil);
if (! FRAME_LIVE_P (XFRAME (selected_frame)))
Fkill_emacs (Qnil);
if (i == 0 || i == -1)
return Qt;
return read_key_sequence_cmd;
}
/* Adjust point to a boundary of a region that has such a property
that should be treated intangible. For the moment, we check
`composition', `display' and `invisible' properties.
LAST_PT is the last position of point. */
static void
adjust_point_for_property (ptrdiff_t last_pt, bool modified)
{
ptrdiff_t beg, end;
Lisp_Object val, overlay, tmp;
/* When called after buffer modification, we should temporarily
suppress the point adjustment for automatic composition so that a
user can keep inserting another character at point or keep
deleting characters around point. */
bool check_composition = ! modified;
bool check_display = true, check_invisible = true;
ptrdiff_t orig_pt = PT;
eassert (XBUFFER (XWINDOW (selected_window)->contents) == current_buffer);
/* FIXME: cycling is probably not necessary because these properties
can't be usefully combined anyway. */
while (check_composition || check_display || check_invisible)
{
/* FIXME: check `intangible'. */
if (check_composition
&& PT > BEGV && PT < ZV
&& (beg = composition_adjust_point (last_pt, PT)) != PT)
{
SET_PT (beg);
check_display = check_invisible = true;
}
check_composition = false;
if (check_display
&& PT > BEGV && PT < ZV
&& !NILP (val = get_char_property_and_overlay
(make_number (PT), Qdisplay, selected_window,
&overlay))
&& display_prop_intangible_p (val, overlay, PT, PT_BYTE)
&& (!OVERLAYP (overlay)
? get_property_and_range (PT, Qdisplay, &val, &beg, &end, Qnil)
: (beg = OVERLAY_POSITION (OVERLAY_START (overlay)),
end = OVERLAY_POSITION (OVERLAY_END (overlay))))
&& (beg < PT /* && end > PT <- It's always the case. */
|| (beg <= PT && STRINGP (val) && SCHARS (val) == 0)))
{
eassert (end > PT);
SET_PT (PT < last_pt
? (STRINGP (val) && SCHARS (val) == 0
? max (beg - 1, BEGV)
: beg)
: end);
check_composition = check_invisible = true;
}
check_display = false;
if (check_invisible && PT > BEGV && PT < ZV)
{
int inv;
bool ellipsis = false;
beg = end = PT;
/* Find boundaries `beg' and `end' of the invisible area, if any. */
while (end < ZV
#if 0
/* FIXME: We should stop if we find a spot between
two runs of `invisible' where inserted text would
be visible. This is important when we have two
invisible boundaries that enclose an area: if the
area is empty, we need this test in order to make
it possible to place point in the middle rather
than skip both boundaries. However, this code
also stops anywhere in a non-sticky text-property,
which breaks (e.g.) Org mode. */
&& (val = Fget_pos_property (make_number (end),
Qinvisible, Qnil),
TEXT_PROP_MEANS_INVISIBLE (val))
#endif
&& !NILP (val = get_char_property_and_overlay
(make_number (end), Qinvisible, Qnil, &overlay))
&& (inv = TEXT_PROP_MEANS_INVISIBLE (val)))
{
ellipsis = ellipsis || inv > 1
|| (OVERLAYP (overlay)
&& (!NILP (Foverlay_get (overlay, Qafter_string))
|| !NILP (Foverlay_get (overlay, Qbefore_string))));
tmp = Fnext_single_char_property_change
(make_number (end), Qinvisible, Qnil, Qnil);
end = NATNUMP (tmp) ? XFASTINT (tmp) : ZV;
}
while (beg > BEGV
#if 0
&& (val = Fget_pos_property (make_number (beg),
Qinvisible, Qnil),
TEXT_PROP_MEANS_INVISIBLE (val))
#endif
&& !NILP (val = get_char_property_and_overlay
(make_number (beg - 1), Qinvisible, Qnil, &overlay))
&& (inv = TEXT_PROP_MEANS_INVISIBLE (val)))
{
ellipsis = ellipsis || inv > 1
|| (OVERLAYP (overlay)
&& (!NILP (Foverlay_get (overlay, Qafter_string))
|| !NILP (Foverlay_get (overlay, Qbefore_string))));
tmp = Fprevious_single_char_property_change
(make_number (beg), Qinvisible, Qnil, Qnil);
beg = NATNUMP (tmp) ? XFASTINT (tmp) : BEGV;
}
/* Move away from the inside area. */
if (beg < PT && end > PT)
{
SET_PT ((orig_pt == PT && (last_pt < beg || last_pt > end))
/* We haven't moved yet (so we don't need to fear
infinite-looping) and we were outside the range
before (so either end of the range still corresponds
to a move in the right direction): pretend we moved
less than we actually did, so that we still have
more freedom below in choosing which end of the range
to go to. */
? (orig_pt = -1, PT < last_pt ? end : beg)
/* We either have moved already or the last point
was already in the range: we don't get to choose
which end of the range we have to go to. */
: (PT < last_pt ? beg : end));
check_composition = check_display = true;
}
#if 0 /* This assertion isn't correct, because SET_PT may end up setting
the point to something other than its argument, due to
point-motion hooks, intangibility, etc. */
eassert (PT == beg || PT == end);
#endif
/* Pretend the area doesn't exist if the buffer is not
modified. */
if (!modified && !ellipsis && beg < end)
{
if (last_pt == beg && PT == end && end < ZV)
(check_composition = check_display = true, SET_PT (end + 1));
else if (last_pt == end && PT == beg && beg > BEGV)
(check_composition = check_display = true, SET_PT (beg - 1));
else if (PT == ((PT < last_pt) ? beg : end))
/* We've already moved as far as we can. Trying to go
to the other end would mean moving backwards and thus
could lead to an infinite loop. */
;
else if (val = Fget_pos_property (make_number (PT),
Qinvisible, Qnil),
TEXT_PROP_MEANS_INVISIBLE (val)
&& (val = (Fget_pos_property
(make_number (PT == beg ? end : beg),
Qinvisible, Qnil)),
!TEXT_PROP_MEANS_INVISIBLE (val)))
(check_composition = check_display = true,
SET_PT (PT == beg ? end : beg));
}
}
check_invisible = false;
}
}
/* Subroutine for safe_run_hooks: run the hook, which is ARGS[1]. */
static Lisp_Object
safe_run_hooks_1 (ptrdiff_t nargs, Lisp_Object *args)
{
eassert (nargs == 2);
return call0 (args[1]);
}
/* Subroutine for safe_run_hooks: handle an error by clearing out the function
from the hook. */
static Lisp_Object
safe_run_hooks_error (Lisp_Object error, ptrdiff_t nargs, Lisp_Object *args)
{
eassert (nargs == 2);
AUTO_STRING (format, "Error in %s (%S): %S");
Lisp_Object hook = args[0];
Lisp_Object fun = args[1];
CALLN (Fmessage, format, hook, fun, error);
if (SYMBOLP (hook))
{
Lisp_Object val;
bool found = false;
Lisp_Object newval = Qnil;
for (val = find_symbol_value (hook); CONSP (val); val = XCDR (val))
if (EQ (fun, XCAR (val)))
found = true;
else
newval = Fcons (XCAR (val), newval);
if (found)
return Fset (hook, Fnreverse (newval));
/* Not found in the local part of the hook. Let's look at the global
part. */
newval = Qnil;
for (val = (NILP (Fdefault_boundp (hook)) ? Qnil
: Fdefault_value (hook));
CONSP (val); val = XCDR (val))
if (EQ (fun, XCAR (val)))
found = true;
else
newval = Fcons (XCAR (val), newval);
if (found)
return Fset_default (hook, Fnreverse (newval));
}
return Qnil;
}
static Lisp_Object
safe_run_hook_funcall (ptrdiff_t nargs, Lisp_Object *args)
{
eassert (nargs == 2);
/* Yes, run_hook_with_args works with args in the other order. */
internal_condition_case_n (safe_run_hooks_1,
2, ((Lisp_Object []) {args[1], args[0]}),
Qt, safe_run_hooks_error);
return Qnil;
}
/* If we get an error while running the hook, cause the hook variable
to be nil. Also inhibit quits, so that C-g won't cause the hook
to mysteriously evaporate. */
void
safe_run_hooks (Lisp_Object hook)
{
ptrdiff_t count = SPECPDL_INDEX ();
specbind (Qinhibit_quit, Qt);
run_hook_with_args (2, ((Lisp_Object []) {hook, hook}), safe_run_hook_funcall);
unbind_to (count, Qnil);
}
\f
/* Nonzero means polling for input is temporarily suppressed. */
int poll_suppress_count;
#ifdef POLL_FOR_INPUT
/* Asynchronous timer for polling. */
static struct atimer *poll_timer;
/* Poll for input, so that we catch a C-g if it comes in. */
void
poll_for_input_1 (void)
{
if (! input_blocked_p ()
&& !waiting_for_input)
gobble_input ();
}
/* Timer callback function for poll_timer. TIMER is equal to
poll_timer. */
static void
poll_for_input (struct atimer *timer)
{
if (poll_suppress_count == 0)
pending_signals = true;
}
#endif /* POLL_FOR_INPUT */
/* Begin signals to poll for input, if they are appropriate.
This function is called unconditionally from various places. */
void
start_polling (void)
{
#ifdef POLL_FOR_INPUT
/* XXX This condition was (read_socket_hook && !interrupt_input),
but read_socket_hook is not global anymore. Let's pretend that
it's always set. */
if (!interrupt_input)
{
/* Turn alarm handling on unconditionally. It might have
been turned off in process.c. */
turn_on_atimers (1);
/* If poll timer doesn't exist, or we need one with
a different interval, start a new one. */
if (poll_timer == NULL
|| poll_timer->interval.tv_sec != polling_period)
{
time_t period = max (1, min (polling_period, TYPE_MAXIMUM (time_t)));
struct timespec interval = make_timespec (period, 0);
if (poll_timer)
cancel_atimer (poll_timer);
poll_timer = start_atimer (ATIMER_CONTINUOUS, interval,
poll_for_input, NULL);
}
/* Let the timer's callback function poll for input
if this becomes zero. */
--poll_suppress_count;
}
#endif
}
/* True if we are using polling to handle input asynchronously. */
bool
input_polling_used (void)
{
#ifdef POLL_FOR_INPUT
/* XXX This condition was (read_socket_hook && !interrupt_input),
but read_socket_hook is not global anymore. Let's pretend that
it's always set. */
return !interrupt_input;
#else
return 0;
#endif
}
/* Turn off polling. */
void
stop_polling (void)
{
#ifdef POLL_FOR_INPUT
/* XXX This condition was (read_socket_hook && !interrupt_input),
but read_socket_hook is not global anymore. Let's pretend that
it's always set. */
if (!interrupt_input)
++poll_suppress_count;
#endif
}
/* Set the value of poll_suppress_count to COUNT
and start or stop polling accordingly. */
void
set_poll_suppress_count (int count)
{
#ifdef POLL_FOR_INPUT
if (count == 0 && poll_suppress_count != 0)
{
poll_suppress_count = 1;
start_polling ();
}
else if (count != 0 && poll_suppress_count == 0)
{
stop_polling ();
}
poll_suppress_count = count;
#endif
}
/* Bind polling_period to a value at least N.
But don't decrease it. */
void
bind_polling_period (int n)
{
#ifdef POLL_FOR_INPUT
EMACS_INT new = polling_period;
if (n > new)
new = n;
stop_other_atimers (poll_timer);
stop_polling ();
specbind (Qpolling_period, make_number (new));
/* Start a new alarm with the new period. */
start_polling ();
#endif
}
\f
/* Apply the control modifier to CHARACTER. */
int
make_ctrl_char (int c)
{
/* Save the upper bits here. */
int upper = c & ~0177;
if (! ASCII_CHAR_P (c))
return c |= ctrl_modifier;
c &= 0177;
/* Everything in the columns containing the upper-case letters
denotes a control character. */
if (c >= 0100 && c < 0140)
{
int oc = c;
c &= ~0140;
/* Set the shift modifier for a control char
made from a shifted letter. But only for letters! */
if (oc >= 'A' && oc <= 'Z')
c |= shift_modifier;
}
/* The lower-case letters denote control characters too. */
else if (c >= 'a' && c <= 'z')
c &= ~0140;
/* Include the bits for control and shift
only if the basic ASCII code can't indicate them. */
else if (c >= ' ')
c |= ctrl_modifier;
/* Replace the high bits. */
c |= (upper & ~ctrl_modifier);
return c;
}
/* Display the help-echo property of the character after the mouse pointer.
Either show it in the echo area, or call show-help-function to display
it by other means (maybe in a tooltip).
If HELP is nil, that means clear the previous help echo.
If HELP is a string, display that string. If HELP is a function,
call it with OBJECT and POS as arguments; the function should
return a help string or nil for none. For all other types of HELP,
evaluate it to obtain a string.
WINDOW is the window in which the help was generated, if any.
It is nil if not in a window.
If OBJECT is a buffer, POS is the position in the buffer where the
`help-echo' text property was found.
If OBJECT is an overlay, that overlay has a `help-echo' property,
and POS is the position in the overlay's buffer under the mouse.
If OBJECT is a string (an overlay string or a string displayed with
the `display' property). POS is the position in that string under
the mouse.
Note: this function may only be called with HELP nil or a string
from X code running asynchronously. */
void
show_help_echo (Lisp_Object help, Lisp_Object window, Lisp_Object object,
Lisp_Object pos)
{
if (!NILP (help) && !STRINGP (help))
{
if (FUNCTIONP (help))
help = safe_call (4, help, window, object, pos);
else
help = safe_eval (help);
if (!STRINGP (help))
return;
}
if (!noninteractive && STRINGP (help))
{
/* The mouse-fixup-help-message Lisp function can call
mouse_position_hook, which resets the mouse_moved flags.
This causes trouble if we are trying to read a mouse motion
event (i.e., if we are inside a `track-mouse' form), so we
restore the mouse_moved flag. */
struct frame *f = NILP (do_mouse_tracking) ? NULL : some_mouse_moved ();
help = call1 (Qmouse_fixup_help_message, help);
if (f)
f->mouse_moved = true;
}
if (STRINGP (help) || NILP (help))
{
if (!NILP (Vshow_help_function))
call1 (Vshow_help_function, Fsubstitute_command_keys (help));
help_echo_showing_p = STRINGP (help);
}
}
\f
/* Input of single characters from keyboard. */
static Lisp_Object kbd_buffer_get_event (KBOARD **kbp, bool *used_mouse_menu,
struct timespec *end_time);
static void record_char (Lisp_Object c);
static Lisp_Object help_form_saved_window_configs;
static void
read_char_help_form_unwind (void)
{
Lisp_Object window_config = XCAR (help_form_saved_window_configs);
help_form_saved_window_configs = XCDR (help_form_saved_window_configs);
if (!NILP (window_config))
Fset_window_configuration (window_config);
}
#define STOP_POLLING \
do { if (! polling_stopped_here) stop_polling (); \
polling_stopped_here = true; } while (0)
#define RESUME_POLLING \
do { if (polling_stopped_here) start_polling (); \
polling_stopped_here = false; } while (0)
static Lisp_Object
read_event_from_main_queue (struct timespec *end_time,
sys_jmp_buf local_getcjmp,
bool *used_mouse_menu)
{
Lisp_Object c = Qnil;
sys_jmp_buf save_jump;
KBOARD *kb;
start:
/* Read from the main queue, and if that gives us something we can't use yet,
we put it on the appropriate side queue and try again. */
if (end_time && timespec_cmp (*end_time, current_timespec ()) <= 0)
return c;
/* Actually read a character, waiting if necessary. */
save_getcjmp (save_jump);
restore_getcjmp (local_getcjmp);
if (!end_time)
timer_start_idle ();
c = kbd_buffer_get_event (&kb, used_mouse_menu, end_time);
restore_getcjmp (save_jump);
if (! NILP (c) && (kb != current_kboard))
{
Lisp_Object last = KVAR (kb, kbd_queue);
if (CONSP (last))
{
while (CONSP (XCDR (last)))
last = XCDR (last);
if (!NILP (XCDR (last)))
emacs_abort ();
}
if (!CONSP (last))
kset_kbd_queue (kb, list1 (c));
else
XSETCDR (last, list1 (c));
kb->kbd_queue_has_data = true;
c = Qnil;
if (single_kboard)
goto start;
current_kboard = kb;
return make_number (-2);
}
/* Terminate Emacs in batch mode if at eof. */
if (noninteractive && INTEGERP (c) && XINT (c) < 0)
Fkill_emacs (make_number (1));
if (INTEGERP (c))
{
/* Add in any extra modifiers, where appropriate. */
if ((extra_keyboard_modifiers & CHAR_CTL)
|| ((extra_keyboard_modifiers & 0177) < ' '
&& (extra_keyboard_modifiers & 0177) != 0))
XSETINT (c, make_ctrl_char (XINT (c)));
/* Transfer any other modifier bits directly from
extra_keyboard_modifiers to c. Ignore the actual character code
in the low 16 bits of extra_keyboard_modifiers. */
XSETINT (c, XINT (c) | (extra_keyboard_modifiers & ~0xff7f & ~CHAR_CTL));
}
return c;
}
/* Like `read_event_from_main_queue' but applies keyboard-coding-system
to tty input. */
static Lisp_Object
read_decoded_event_from_main_queue (struct timespec *end_time,
sys_jmp_buf local_getcjmp,
Lisp_Object prev_event,
bool *used_mouse_menu)
{
#ifndef WINDOWSNT
#define MAX_ENCODED_BYTES 16
Lisp_Object events[MAX_ENCODED_BYTES];
int n = 0;
#endif
while (true)
{
Lisp_Object nextevt
= read_event_from_main_queue (end_time, local_getcjmp,
used_mouse_menu);
#ifdef WINDOWSNT
/* w32_console already returns decoded events. It either reads
Unicode characters from the Windows keyboard input, or
converts characters encoded in the current codepage into
Unicode. See w32inevt.c:key_event, near its end. */
return nextevt;
#else
struct frame *frame = XFRAME (selected_frame);
struct terminal *terminal = frame->terminal;
if (!((FRAME_TERMCAP_P (frame) || FRAME_MSDOS_P (frame))
/* Don't apply decoding if we're just reading a raw event
(e.g. reading bytes sent by the xterm to specify the position
of a mouse click). */
&& (!EQ (prev_event, Qt))
&& (TERMINAL_KEYBOARD_CODING (terminal)->common_flags
& CODING_REQUIRE_DECODING_MASK)))
return nextevt; /* No decoding needed. */
else
{
int meta_key = terminal->display_info.tty->meta_key;
eassert (n < MAX_ENCODED_BYTES);
events[n++] = nextevt;
if (NATNUMP (nextevt)
&& XINT (nextevt) < (meta_key == 1 ? 0x80 : 0x100))
{ /* An encoded byte sequence, let's try to decode it. */
struct coding_system *coding
= TERMINAL_KEYBOARD_CODING (terminal);
if (raw_text_coding_system_p (coding))
{
int i;
if (meta_key != 2)
for (i = 0; i < n; i++)
events[i] = make_number (XINT (events[i]) & ~0x80);
}
else
{
unsigned char src[MAX_ENCODED_BYTES];
unsigned char dest[MAX_ENCODED_BYTES * MAX_MULTIBYTE_LENGTH];
int i;
for (i = 0; i < n; i++)
src[i] = XINT (events[i]);
if (meta_key != 2)
for (i = 0; i < n; i++)
src[i] &= ~0x80;
coding->destination = dest;
coding->dst_bytes = sizeof dest;
decode_coding_c_string (coding, src, n, Qnil);
eassert (coding->produced_char <= n);
if (coding->produced_char == 0)
{ /* The encoded sequence is incomplete. */
if (n < MAX_ENCODED_BYTES) /* Avoid buffer overflow. */
continue; /* Read on! */
}
else
{
const unsigned char *p = coding->destination;
eassert (coding->carryover_bytes == 0);
n = 0;
while (n < coding->produced_char)
events[n++] = make_number (STRING_CHAR_ADVANCE (p));
}
}
}
/* Now `events' should hold decoded events.
Normally, n should be equal to 1, but better not rely on it.
We can only return one event here, so return the first we
had and keep the others (if any) for later. */
while (n > 1)
Vunread_command_events
= Fcons (events[--n], Vunread_command_events);
return events[0];
}
#endif
}
}
/* Read a character from the keyboard; call the redisplay if needed. */
/* commandflag 0 means do not autosave, but do redisplay.
-1 means do not redisplay, but do autosave.
-2 means do neither.
1 means do both.
The argument MAP is a keymap for menu prompting.
PREV_EVENT is the previous input event, or nil if we are reading
the first event of a key sequence (or not reading a key sequence).
If PREV_EVENT is t, that is a "magic" value that says
not to run input methods, but in other respects to act as if
not reading a key sequence.
If USED_MOUSE_MENU is non-null, then set *USED_MOUSE_MENU to true
if we used a mouse menu to read the input, or false otherwise. If
USED_MOUSE_MENU is null, don't dereference it.
Value is -2 when we find input on another keyboard. A second call
to read_char will read it.
If END_TIME is non-null, it is a pointer to a struct timespec
specifying the maximum time to wait until. If no input arrives by
that time, stop waiting and return nil.
Value is t if we showed a menu and the user rejected it. */
Lisp_Object
read_char (int commandflag, Lisp_Object map,
Lisp_Object prev_event,
bool *used_mouse_menu, struct timespec *end_time)
{
Lisp_Object c;
ptrdiff_t jmpcount;
sys_jmp_buf local_getcjmp;
sys_jmp_buf save_jump;
Lisp_Object tem, save;
volatile Lisp_Object previous_echo_area_message;
volatile Lisp_Object also_record;
volatile bool reread, recorded;
bool volatile polling_stopped_here = false;
struct kboard *orig_kboard = current_kboard;
also_record = Qnil;
c = Qnil;
previous_echo_area_message = Qnil;
retry:
recorded = false;
if (CONSP (Vunread_post_input_method_events))
{
c = XCAR (Vunread_post_input_method_events);
Vunread_post_input_method_events
= XCDR (Vunread_post_input_method_events);
/* Undo what read_char_x_menu_prompt did when it unread
additional keys returned by Fx_popup_menu. */
if (CONSP (c)
&& (SYMBOLP (XCAR (c)) || INTEGERP (XCAR (c)))
&& NILP (XCDR (c)))
c = XCAR (c);
reread = true;
goto reread_first;
}
else
reread = false;
if (CONSP (Vunread_command_events))
{
bool was_disabled = false;
c = XCAR (Vunread_command_events);
Vunread_command_events = XCDR (Vunread_command_events);
/* Undo what sit-for did when it unread additional keys
inside universal-argument. */
if (CONSP (c) && EQ (XCAR (c), Qt))
c = XCDR (c);
else
reread = true;
/* Undo what read_char_x_menu_prompt did when it unread
additional keys returned by Fx_popup_menu. */
if (CONSP (c)
&& EQ (XCDR (c), Qdisabled)
&& (SYMBOLP (XCAR (c)) || INTEGERP (XCAR (c))))
{
was_disabled = true;
c = XCAR (c);
}
/* If the queued event is something that used the mouse,
set used_mouse_menu accordingly. */
if (used_mouse_menu
/* Also check was_disabled so last-nonmenu-event won't return
a bad value when submenus are involved. (Bug#447) */
&& (EQ (c, Qtool_bar) || EQ (c, Qmenu_bar) || was_disabled))
*used_mouse_menu = true;
goto reread_for_input_method;
}
if (CONSP (Vunread_input_method_events))
{
c = XCAR (Vunread_input_method_events);
Vunread_input_method_events = XCDR (Vunread_input_method_events);
/* Undo what read_char_x_menu_prompt did when it unread
additional keys returned by Fx_popup_menu. */
if (CONSP (c)
&& (SYMBOLP (XCAR (c)) || INTEGERP (XCAR (c)))
&& NILP (XCDR (c)))
c = XCAR (c);
reread = true;
goto reread_for_input_method;
}
if (!NILP (Vexecuting_kbd_macro))
{
/* We set this to Qmacro; since that's not a frame, nobody will
try to switch frames on us, and the selected window will
remain unchanged.
Since this event came from a macro, it would be misleading to
leave internal_last_event_frame set to wherever the last
real event came from. Normally, a switch-frame event selects
internal_last_event_frame after each command is read, but
events read from a macro should never cause a new frame to be
selected. */
Vlast_event_frame = internal_last_event_frame = Qmacro;
/* Exit the macro if we are at the end.
Also, some things replace the macro with t
to force an early exit. */
if (EQ (Vexecuting_kbd_macro, Qt)
|| executing_kbd_macro_index >= XFASTINT (Flength (Vexecuting_kbd_macro)))
{
XSETINT (c, -1);
goto exit;
}
c = Faref (Vexecuting_kbd_macro, make_number (executing_kbd_macro_index));
if (STRINGP (Vexecuting_kbd_macro)
&& (XFASTINT (c) & 0x80) && (XFASTINT (c) <= 0xff))
XSETFASTINT (c, CHAR_META | (XFASTINT (c) & ~0x80));
executing_kbd_macro_index++;
goto from_macro;
}
if (!NILP (unread_switch_frame))
{
c = unread_switch_frame;
unread_switch_frame = Qnil;
/* This event should make it into this_command_keys, and get echoed
again, so we do not set `reread'. */
goto reread_first;
}
/* If redisplay was requested. */
if (commandflag >= 0)
{
bool echo_current = EQ (echo_message_buffer, echo_area_buffer[0]);
/* If there is pending input, process any events which are not
user-visible, such as X selection_request events. */
if (input_pending
|| detect_input_pending_run_timers (0))
swallow_events (false); /* May clear input_pending. */
/* Redisplay if no pending input. */
while (!(input_pending
&& (input_was_pending || !redisplay_dont_pause)))
{
input_was_pending = input_pending;
if (help_echo_showing_p && !EQ (selected_window, minibuf_window))
redisplay_preserve_echo_area (5);
else
redisplay ();
if (!input_pending)
/* Normal case: no input arrived during redisplay. */
break;
/* Input arrived and pre-empted redisplay.
Process any events which are not user-visible. */
swallow_events (false);
/* If that cleared input_pending, try again to redisplay. */
}
/* Prevent the redisplay we just did
from messing up echoing of the input after the prompt. */
if (commandflag == 0 && echo_current)
echo_message_buffer = echo_area_buffer[0];
}
/* Message turns off echoing unless more keystrokes turn it on again.
The code in 20.x for the condition was
1. echo_area_glyphs && *echo_area_glyphs
2. && echo_area_glyphs != current_kboard->echobuf
3. && ok_to_echo_at_next_pause != echo_area_glyphs
(1) means there's a current message displayed
(2) means it's not the message from echoing from the current
kboard.
(3) There's only one place in 20.x where ok_to_echo_at_next_pause
is set to a non-null value. This is done in read_char and it is
set to echo_area_glyphs. That means
ok_to_echo_at_next_pause is either null or
current_kboard->echobuf with the appropriate current_kboard at
that time.
So, condition (3) means in clear text ok_to_echo_at_next_pause
must be either null, or the current message isn't from echoing at
all, or it's from echoing from a different kboard than the
current one. */
if (/* There currently is something in the echo area. */
!NILP (echo_area_buffer[0])
&& (/* It's an echo from a different kboard. */
echo_kboard != current_kboard
/* Or we explicitly allow overwriting whatever there is. */
|| ok_to_echo_at_next_pause == NULL))
cancel_echoing ();
else
echo_dash ();
/* Try reading a character via menu prompting in the minibuf.
Try this before the sit-for, because the sit-for
would do the wrong thing if we are supposed to do
menu prompting. If EVENT_HAS_PARAMETERS then we are reading
after a mouse event so don't try a minibuf menu. */
c = Qnil;
if (KEYMAPP (map) && INTERACTIVE
&& !NILP (prev_event) && ! EVENT_HAS_PARAMETERS (prev_event)
/* Don't bring up a menu if we already have another event. */
&& !CONSP (Vunread_command_events)
&& !detect_input_pending_run_timers (0))
{
c = read_char_minibuf_menu_prompt (commandflag, map);
if (INTEGERP (c) && XINT (c) == -2)
return c; /* wrong_kboard_jmpbuf */
if (! NILP (c))
goto exit;
}
/* Make a longjmp point for quits to use, but don't alter getcjmp just yet.
We will do that below, temporarily for short sections of code,
when appropriate. local_getcjmp must be in effect
around any call to sit_for or kbd_buffer_get_event;
it *must not* be in effect when we call redisplay. */
jmpcount = SPECPDL_INDEX ();
if (sys_setjmp (local_getcjmp))
{
/* Handle quits while reading the keyboard. */
/* We must have saved the outer value of getcjmp here,
so restore it now. */
restore_getcjmp (save_jump);
pthread_sigmask (SIG_SETMASK, &empty_mask, 0);
#if THREADS_ENABLED
maybe_reacquire_global_lock ();
#endif
unbind_to (jmpcount, Qnil);
XSETINT (c, quit_char);
internal_last_event_frame = selected_frame;
Vlast_event_frame = internal_last_event_frame;
/* If we report the quit char as an event,
don't do so more than once. */
if (!NILP (Vinhibit_quit))
Vquit_flag = Qnil;
{
KBOARD *kb = FRAME_KBOARD (XFRAME (selected_frame));
if (kb != current_kboard)
{
Lisp_Object last = KVAR (kb, kbd_queue);
/* We shouldn't get here if we were in single-kboard mode! */
if (single_kboard)
emacs_abort ();
if (CONSP (last))
{
while (CONSP (XCDR (last)))
last = XCDR (last);
if (!NILP (XCDR (last)))
emacs_abort ();
}
if (!CONSP (last))
kset_kbd_queue (kb, list1 (c));
else
XSETCDR (last, list1 (c));
kb->kbd_queue_has_data = true;
current_kboard = kb;
return make_number (-2); /* wrong_kboard_jmpbuf */
}
}
goto non_reread;
}
/* Start idle timers if no time limit is supplied. We don't do it
if a time limit is supplied to avoid an infinite recursion in the
situation where an idle timer calls `sit-for'. */
if (!end_time)
timer_start_idle ();
/* If in middle of key sequence and minibuffer not active,
start echoing if enough time elapses. */
if (minibuf_level == 0
&& !end_time
&& !current_kboard->immediate_echo
&& (this_command_key_count > 0
|| !NILP (call0 (Qinternal_echo_keystrokes_prefix)))
&& ! noninteractive
&& echo_keystrokes_p ()
&& (/* No message. */
NILP (echo_area_buffer[0])
/* Or empty message. */
|| (BUF_BEG (XBUFFER (echo_area_buffer[0]))
== BUF_Z (XBUFFER (echo_area_buffer[0])))
/* Or already echoing from same kboard. */
|| (echo_kboard && ok_to_echo_at_next_pause == echo_kboard)
/* Or not echoing before and echoing allowed. */
|| (!echo_kboard && ok_to_echo_at_next_pause)))
{
/* After a mouse event, start echoing right away.
This is because we are probably about to display a menu,
and we don't want to delay before doing so. */
if (EVENT_HAS_PARAMETERS (prev_event))
echo_now ();
else
{
Lisp_Object tem0;
save_getcjmp (save_jump);
restore_getcjmp (local_getcjmp);
tem0 = sit_for (Vecho_keystrokes, 1, 1);
restore_getcjmp (save_jump);
if (EQ (tem0, Qt)
&& ! CONSP (Vunread_command_events))
echo_now ();
}
}
/* Maybe auto save due to number of keystrokes. */
if (commandflag != 0 && commandflag != -2
&& auto_save_interval > 0
&& num_nonmacro_input_events - last_auto_save > max (auto_save_interval, 20)
&& !detect_input_pending_run_timers (0))
{
Fdo_auto_save (Qnil, Qnil);
/* Hooks can actually change some buffers in auto save. */
redisplay ();
}
/* Try reading using an X menu.
This is never confused with reading using the minibuf
because the recursive call of read_char in read_char_minibuf_menu_prompt
does not pass on any keymaps. */
if (KEYMAPP (map) && INTERACTIVE
&& !NILP (prev_event)
&& EVENT_HAS_PARAMETERS (prev_event)
&& !EQ (XCAR (prev_event), Qmenu_bar)
&& !EQ (XCAR (prev_event), Qtool_bar)
/* Don't bring up a menu if we already have another event. */
&& !CONSP (Vunread_command_events))
{
c = read_char_x_menu_prompt (map, prev_event, used_mouse_menu);
/* Now that we have read an event, Emacs is not idle. */
if (!end_time)
timer_stop_idle ();
goto exit;
}
/* Maybe autosave and/or garbage collect due to idleness. */
if (INTERACTIVE && NILP (c))
{
int delay_level;
ptrdiff_t buffer_size;
/* Slow down auto saves logarithmically in size of current buffer,
and garbage collect while we're at it. */
if (! MINI_WINDOW_P (XWINDOW (selected_window)))
last_non_minibuf_size = Z - BEG;
buffer_size = (last_non_minibuf_size >> 8) + 1;
delay_level = 0;
while (buffer_size > 64)
delay_level++, buffer_size -= buffer_size >> 2;
if (delay_level < 4) delay_level = 4;
/* delay_level is 4 for files under around 50k, 7 at 100k,
9 at 200k, 11 at 300k, and 12 at 500k. It is 15 at 1 meg. */
/* Auto save if enough time goes by without input. */
if (commandflag != 0 && commandflag != -2
&& num_nonmacro_input_events > last_auto_save
&& INTEGERP (Vauto_save_timeout)
&& XINT (Vauto_save_timeout) > 0)
{
Lisp_Object tem0;
EMACS_INT timeout = XFASTINT (Vauto_save_timeout);
timeout = min (timeout, MOST_POSITIVE_FIXNUM / delay_level * 4);
timeout = delay_level * timeout / 4;
save_getcjmp (save_jump);
restore_getcjmp (local_getcjmp);
tem0 = sit_for (make_number (timeout), 1, 1);
restore_getcjmp (save_jump);
if (EQ (tem0, Qt)
&& ! CONSP (Vunread_command_events))
{
Fdo_auto_save (Qnil, Qnil);
redisplay ();
}
}
/* If there is still no input available, ask for GC. */
if (!detect_input_pending_run_timers (0))
maybe_gc ();
}
/* Notify the caller if an autosave hook, or a timer, sentinel or
filter in the sit_for calls above have changed the current
kboard. This could happen if they use the minibuffer or start a
recursive edit, like the fancy splash screen in server.el's
filter. If this longjmp wasn't here, read_key_sequence would
interpret the next key sequence using the wrong translation
tables and function keymaps. */
if (NILP (c) && current_kboard != orig_kboard)
return make_number (-2); /* wrong_kboard_jmpbuf */
/* If this has become non-nil here, it has been set by a timer
or sentinel or filter. */
if (CONSP (Vunread_command_events))
{
c = XCAR (Vunread_command_events);
Vunread_command_events = XCDR (Vunread_command_events);
if (CONSP (c) && EQ (XCAR (c), Qt))
c = XCDR (c);
else
reread = true;
}
/* Read something from current KBOARD's side queue, if possible. */
if (NILP (c))
{
if (current_kboard->kbd_queue_has_data)
{
if (!CONSP (KVAR (current_kboard, kbd_queue)))
emacs_abort ();
c = XCAR (KVAR (current_kboard, kbd_queue));
kset_kbd_queue (current_kboard,
XCDR (KVAR (current_kboard, kbd_queue)));
if (NILP (KVAR (current_kboard, kbd_queue)))
current_kboard->kbd_queue_has_data = false;
input_pending = readable_events (0);
if (EVENT_HAS_PARAMETERS (c)
&& EQ (EVENT_HEAD_KIND (EVENT_HEAD (c)), Qswitch_frame))
internal_last_event_frame = XCAR (XCDR (c));
Vlast_event_frame = internal_last_event_frame;
}
}
/* If current_kboard's side queue is empty check the other kboards.
If one of them has data that we have not yet seen here,
switch to it and process the data waiting for it.
Note: if the events queued up for another kboard
have already been seen here, and therefore are not a complete command,
the kbd_queue_has_data field is 0, so we skip that kboard here.
That's to avoid an infinite loop switching between kboards here. */
if (NILP (c) && !single_kboard)
{
KBOARD *kb;
for (kb = all_kboards; kb; kb = kb->next_kboard)
if (kb->kbd_queue_has_data)
{
current_kboard = kb;
return make_number (-2); /* wrong_kboard_jmpbuf */
}
}
wrong_kboard:
STOP_POLLING;
if (NILP (c))
{
c = read_decoded_event_from_main_queue (end_time, local_getcjmp,
prev_event, used_mouse_menu);
if (NILP (c) && end_time
&& timespec_cmp (*end_time, current_timespec ()) <= 0)
{
goto exit;
}
if (EQ (c, make_number (-2)))
return c;
}
non_reread:
if (!end_time)
timer_stop_idle ();
RESUME_POLLING;
if (NILP (c))
{
if (commandflag >= 0
&& !input_pending && !detect_input_pending_run_timers (0))
redisplay ();
goto wrong_kboard;
}
/* Buffer switch events are only for internal wakeups
so don't show them to the user.
Also, don't record a key if we already did. */
if (BUFFERP (c))
goto exit;
/* Process special events within read_char
and loop around to read another event. */
save = Vquit_flag;
Vquit_flag = Qnil;
tem = access_keymap (get_keymap (Vspecial_event_map, 0, 1), c, 0, 0, 1);
Vquit_flag = save;
if (!NILP (tem))
{
struct buffer *prev_buffer = current_buffer;
last_input_event = c;
call4 (Qcommand_execute, tem, Qnil, Fvector (1, &last_input_event), Qt);
if (CONSP (c)
&& (EQ (XCAR (c), Qselect_window)
#ifdef HAVE_DBUS
|| EQ (XCAR (c), Qdbus_event)
#endif
#ifdef USE_FILE_NOTIFY
|| EQ (XCAR (c), Qfile_notify)
#endif
|| EQ (XCAR (c), Qconfig_changed_event))
&& !end_time)
/* We stopped being idle for this event; undo that. This
prevents automatic window selection (under
mouse-autoselect-window) from acting as a real input event, for
example banishing the mouse under mouse-avoidance-mode. */
timer_resume_idle ();
if (current_buffer != prev_buffer)
{
/* The command may have changed the keymaps. Pretend there
is input in another keyboard and return. This will
recalculate keymaps. */
c = make_number (-2);
goto exit;
}
else
goto retry;
}
/* Handle things that only apply to characters. */
if (INTEGERP (c))
{
/* If kbd_buffer_get_event gave us an EOF, return that. */
if (XINT (c) == -1)
goto exit;
if ((STRINGP (KVAR (current_kboard, Vkeyboard_translate_table))
&& UNSIGNED_CMP (XFASTINT (c), <,
SCHARS (KVAR (current_kboard,
Vkeyboard_translate_table))))
|| (VECTORP (KVAR (current_kboard, Vkeyboard_translate_table))
&& UNSIGNED_CMP (XFASTINT (c), <,
ASIZE (KVAR (current_kboard,
Vkeyboard_translate_table))))
|| (CHAR_TABLE_P (KVAR (current_kboard, Vkeyboard_translate_table))
&& CHARACTERP (c)))
{
Lisp_Object d;
d = Faref (KVAR (current_kboard, Vkeyboard_translate_table), c);
/* nil in keyboard-translate-table means no translation. */
if (!NILP (d))
c = d;
}
}
/* If this event is a mouse click in the menu bar,
return just menu-bar for now. Modify the mouse click event
so we won't do this twice, then queue it up. */
if (EVENT_HAS_PARAMETERS (c)
&& CONSP (XCDR (c))
&& CONSP (EVENT_START (c))
&& CONSP (XCDR (EVENT_START (c))))
{
Lisp_Object posn;
posn = POSN_POSN (EVENT_START (c));
/* Handle menu-bar events:
insert the dummy prefix event `menu-bar'. */
if (EQ (posn, Qmenu_bar) || EQ (posn, Qtool_bar))
{
/* Change menu-bar to (menu-bar) as the event "position". */
POSN_SET_POSN (EVENT_START (c), list1 (posn));
also_record = c;
Vunread_command_events = Fcons (c, Vunread_command_events);
c = posn;
}
}
/* Store these characters into recent_keys, the dribble file if any,
and the keyboard macro being defined, if any. */
record_char (c);
recorded = true;
if (! NILP (also_record))
record_char (also_record);
/* Wipe the echo area.
But first, if we are about to use an input method,
save the echo area contents for it to refer to. */
if (INTEGERP (c)
&& ! NILP (Vinput_method_function)
&& ' ' <= XINT (c) && XINT (c) < 256 && XINT (c) != 127)
{
previous_echo_area_message = Fcurrent_message ();
Vinput_method_previous_message = previous_echo_area_message;
}
/* Now wipe the echo area, except for help events which do their
own stuff with the echo area. */
if (!CONSP (c)
|| (!(EQ (Qhelp_echo, XCAR (c)))
&& !(EQ (Qswitch_frame, XCAR (c)))
/* Don't wipe echo area for select window events: These might
get delayed via `mouse-autoselect-window' (Bug#11304). */
&& !(EQ (Qselect_window, XCAR (c)))))
{
if (!NILP (echo_area_buffer[0]))
{
safe_run_hooks (Qecho_area_clear_hook);
clear_message (1, 0);
}
}
reread_for_input_method:
from_macro:
/* Pass this to the input method, if appropriate. */
if (INTEGERP (c)
&& ! NILP (Vinput_method_function)
/* Don't run the input method within a key sequence,
after the first event of the key sequence. */
&& NILP (prev_event)
&& ' ' <= XINT (c) && XINT (c) < 256 && XINT (c) != 127)
{
Lisp_Object keys;
ptrdiff_t key_count;
ptrdiff_t command_key_start;
ptrdiff_t count = SPECPDL_INDEX ();
/* Save the echo status. */
bool saved_immediate_echo = current_kboard->immediate_echo;
struct kboard *saved_ok_to_echo = ok_to_echo_at_next_pause;
Lisp_Object saved_echo_string = KVAR (current_kboard, echo_string);
Lisp_Object saved_echo_prompt = KVAR (current_kboard, echo_prompt);
/* Save the this_command_keys status. */
key_count = this_command_key_count;
command_key_start = this_single_command_key_start;
if (key_count > 0)
keys = Fcopy_sequence (this_command_keys);
else
keys = Qnil;
/* Clear out this_command_keys. */
this_command_key_count = 0;
this_single_command_key_start = 0;
/* Now wipe the echo area. */
if (!NILP (echo_area_buffer[0]))
safe_run_hooks (Qecho_area_clear_hook);
clear_message (1, 0);
echo_truncate (0);
/* If we are not reading a key sequence,
never use the echo area. */
if (!KEYMAPP (map))
{
specbind (Qinput_method_use_echo_area, Qt);
}
/* Call the input method. */
tem = call1 (Vinput_method_function, c);
tem = unbind_to (count, tem);
/* Restore the saved echoing state
and this_command_keys state. */
this_command_key_count = key_count;
this_single_command_key_start = command_key_start;
if (key_count > 0)
this_command_keys = keys;
cancel_echoing ();
ok_to_echo_at_next_pause = saved_ok_to_echo;
kset_echo_string (current_kboard, saved_echo_string);
kset_echo_prompt (current_kboard, saved_echo_prompt);
if (saved_immediate_echo)
echo_now ();
/* The input method can return no events. */
if (! CONSP (tem))
{
/* Bring back the previous message, if any. */
if (! NILP (previous_echo_area_message))
message_with_string ("%s", previous_echo_area_message, 0);
goto retry;
}
/* It returned one event or more. */
c = XCAR (tem);
Vunread_post_input_method_events
= nconc2 (XCDR (tem), Vunread_post_input_method_events);
}
/* When we consume events from the various unread-*-events lists, we
bypass the code that records input, so record these events now if
they were not recorded already. */
if (!recorded)
{
record_char (c);
recorded = true;
}
reread_first:
/* Display help if not echoing. */
if (CONSP (c) && EQ (XCAR (c), Qhelp_echo))
{
/* (help-echo FRAME HELP WINDOW OBJECT POS). */
Lisp_Object help, object, position, window, htem;
htem = Fcdr (XCDR (c));
help = Fcar (htem);
htem = Fcdr (htem);
window = Fcar (htem);
htem = Fcdr (htem);
object = Fcar (htem);
htem = Fcdr (htem);
position = Fcar (htem);
show_help_echo (help, window, object, position);
/* We stopped being idle for this event; undo that. */
if (!end_time)
timer_resume_idle ();
goto retry;
}
if ((! reread || this_command_key_count == 0)
&& !end_time)
{
/* Don't echo mouse motion events. */
if (! (EVENT_HAS_PARAMETERS (c)
&& EQ (EVENT_HEAD_KIND (EVENT_HEAD (c)), Qmouse_movement)))
/* Once we reread a character, echoing can happen
the next time we pause to read a new one. */
ok_to_echo_at_next_pause = current_kboard;
/* Record this character as part of the current key. */
add_command_key (c);
if (! NILP (also_record))
add_command_key (also_record);
echo_update ();
}
last_input_event = c;
num_input_events++;
/* Process the help character specially if enabled. */
if (!NILP (Vhelp_form) && help_char_p (c))
{
ptrdiff_t count = SPECPDL_INDEX ();
help_form_saved_window_configs
= Fcons (Fcurrent_window_configuration (Qnil),
help_form_saved_window_configs);
record_unwind_protect_void (read_char_help_form_unwind);
call0 (Qhelp_form_show);
cancel_echoing ();
do
{
c = read_char (0, Qnil, Qnil, 0, NULL);
if (EVENT_HAS_PARAMETERS (c)
&& EQ (EVENT_HEAD_KIND (EVENT_HEAD (c)), Qmouse_click))
XSETCAR (help_form_saved_window_configs, Qnil);
}
while (BUFFERP (c));
/* Remove the help from the frame. */
unbind_to (count, Qnil);
redisplay ();
if (EQ (c, make_number (040)))
{
cancel_echoing ();
do
c = read_char (0, Qnil, Qnil, 0, NULL);
while (BUFFERP (c));
}
}
exit:
RESUME_POLLING;
input_was_pending = input_pending;
return c;
}
/* Record a key that came from a mouse menu.
Record it for echoing, for this-command-keys, and so on. */
static void
record_menu_key (Lisp_Object c)
{
/* Wipe the echo area. */
clear_message (1, 0);
record_char (c);
/* Once we reread a character, echoing can happen
the next time we pause to read a new one. */
ok_to_echo_at_next_pause = NULL;
/* Record this character as part of the current key. */
add_command_key (c);
echo_update ();
/* Re-reading in the middle of a command. */
last_input_event = c;
num_input_events++;
}
/* Return true if should recognize C as "the help character". */
static bool
help_char_p (Lisp_Object c)
{
Lisp_Object tail;
if (EQ (c, Vhelp_char))
return 1;
for (tail = Vhelp_event_list; CONSP (tail); tail = XCDR (tail))
if (EQ (c, XCAR (tail)))
return 1;
return 0;
}
/* Record the input event C in various ways. */
static void
record_char (Lisp_Object c)
{
int recorded = 0;
if (CONSP (c) && (EQ (XCAR (c), Qhelp_echo) || EQ (XCAR (c), Qmouse_movement)))
{
/* To avoid filling recent_keys with help-echo and mouse-movement
events, we filter out repeated help-echo events, only store the
first and last in a series of mouse-movement events, and don't
store repeated help-echo events which are only separated by
mouse-movement events. */
Lisp_Object ev1, ev2, ev3;
int ix1, ix2, ix3;
if ((ix1 = recent_keys_index - 1) < 0)
ix1 = NUM_RECENT_KEYS - 1;
ev1 = AREF (recent_keys, ix1);
if ((ix2 = ix1 - 1) < 0)
ix2 = NUM_RECENT_KEYS - 1;
ev2 = AREF (recent_keys, ix2);
if ((ix3 = ix2 - 1) < 0)
ix3 = NUM_RECENT_KEYS - 1;
ev3 = AREF (recent_keys, ix3);
if (EQ (XCAR (c), Qhelp_echo))
{
/* Don't record `help-echo' in recent_keys unless it shows some help
message, and a different help than the previously recorded
event. */
Lisp_Object help, last_help;
help = Fcar_safe (Fcdr_safe (XCDR (c)));
if (!STRINGP (help))
recorded = 1;
else if (CONSP (ev1) && EQ (XCAR (ev1), Qhelp_echo)
&& (last_help = Fcar_safe (Fcdr_safe (XCDR (ev1))), EQ (last_help, help)))
recorded = 1;
else if (CONSP (ev1) && EQ (XCAR (ev1), Qmouse_movement)
&& CONSP (ev2) && EQ (XCAR (ev2), Qhelp_echo)
&& (last_help = Fcar_safe (Fcdr_safe (XCDR (ev2))), EQ (last_help, help)))
recorded = -1;
else if (CONSP (ev1) && EQ (XCAR (ev1), Qmouse_movement)
&& CONSP (ev2) && EQ (XCAR (ev2), Qmouse_movement)
&& CONSP (ev3) && EQ (XCAR (ev3), Qhelp_echo)
&& (last_help = Fcar_safe (Fcdr_safe (XCDR (ev3))), EQ (last_help, help)))
recorded = -2;
}
else if (EQ (XCAR (c), Qmouse_movement))
{
/* Only record one pair of `mouse-movement' on a window in recent_keys.
So additional mouse movement events replace the last element. */
Lisp_Object last_window, window;
window = Fcar_safe (Fcar_safe (XCDR (c)));
if (CONSP (ev1) && EQ (XCAR (ev1), Qmouse_movement)
&& (last_window = Fcar_safe (Fcar_safe (XCDR (ev1))), EQ (last_window, window))
&& CONSP (ev2) && EQ (XCAR (ev2), Qmouse_movement)
&& (last_window = Fcar_safe (Fcar_safe (XCDR (ev2))), EQ (last_window, window)))
{
ASET (recent_keys, ix1, c);
recorded = 1;
}
}
}
else if (NILP (Vexecuting_kbd_macro))
store_kbd_macro_char (c);
/* recent_keys should not include events from keyboard macros. */
if (NILP (Vexecuting_kbd_macro))
{
if (!recorded)
{
total_keys += total_keys < NUM_RECENT_KEYS;
ASET (recent_keys, recent_keys_index, c);
if (++recent_keys_index >= NUM_RECENT_KEYS)
recent_keys_index = 0;
}
else if (recorded < 0)
{
/* We need to remove one or two events from recent_keys.
To do this, we simply put nil at those events and move the
recent_keys_index backwards over those events. Usually,
users will never see those nil events, as they will be
overwritten by the command keys entered to see recent_keys
(e.g. C-h l). */
while (recorded++ < 0 && total_keys > 0)
{
if (total_keys < NUM_RECENT_KEYS)
total_keys--;
if (--recent_keys_index < 0)
recent_keys_index = NUM_RECENT_KEYS - 1;
ASET (recent_keys, recent_keys_index, Qnil);
}
}
num_nonmacro_input_events++;
}
/* Write c to the dribble file. If c is a lispy event, write
the event's symbol to the dribble file, in <brackets>. Bleaugh.
If you, dear reader, have a better idea, you've got the source. :-) */
if (dribble)
{
block_input ();
if (INTEGERP (c))
{
if (XUINT (c) < 0x100)
putc_unlocked (XUINT (c), dribble);
else
fprintf (dribble, " 0x%"pI"x", XUINT (c));
}
else
{
Lisp_Object dribblee;
/* If it's a structured event, take the event header. */
dribblee = EVENT_HEAD (c);
if (SYMBOLP (dribblee))
{
putc_unlocked ('<', dribble);
fwrite_unlocked (SDATA (SYMBOL_NAME (dribblee)), sizeof (char),
SBYTES (SYMBOL_NAME (dribblee)),
dribble);
putc_unlocked ('>', dribble);
}
}
fflush_unlocked (dribble);
unblock_input ();
}
}
/* Copy out or in the info on where C-g should throw to.
This is used when running Lisp code from within get_char,
in case get_char is called recursively.
See read_process_output. */
static void
save_getcjmp (sys_jmp_buf temp)
{
memcpy (temp, getcjmp, sizeof getcjmp);
}
static void
restore_getcjmp (sys_jmp_buf temp)
{
memcpy (getcjmp, temp, sizeof getcjmp);
}
\f
/* Low level keyboard/mouse input.
kbd_buffer_store_event places events in kbd_buffer, and
kbd_buffer_get_event retrieves them. */
/* Return true if there are any events in the queue that read-char
would return. If this returns false, a read-char would block. */
static bool
readable_events (int flags)
{
if (flags & READABLE_EVENTS_DO_TIMERS_NOW)
timer_check ();
/* If the buffer contains only FOCUS_IN_EVENT events, and
READABLE_EVENTS_FILTER_EVENTS is set, report it as empty. */
if (kbd_fetch_ptr != kbd_store_ptr)
{
if (flags & (READABLE_EVENTS_FILTER_EVENTS
#ifdef USE_TOOLKIT_SCROLL_BARS
| READABLE_EVENTS_IGNORE_SQUEEZABLES
#endif
))
{
union buffered_input_event *event = kbd_fetch_ptr;
do
{
if (event == kbd_buffer + KBD_BUFFER_SIZE)
event = kbd_buffer;
if (!(
#ifdef USE_TOOLKIT_SCROLL_BARS
(flags & READABLE_EVENTS_FILTER_EVENTS) &&
#endif
event->kind == FOCUS_IN_EVENT)
#ifdef USE_TOOLKIT_SCROLL_BARS
&& !((flags & READABLE_EVENTS_IGNORE_SQUEEZABLES)
&& (event->kind == SCROLL_BAR_CLICK_EVENT
|| event->kind == HORIZONTAL_SCROLL_BAR_CLICK_EVENT)
&& event->ie.part == scroll_bar_handle
&& event->ie.modifiers == 0)
#endif
&& !((flags & READABLE_EVENTS_FILTER_EVENTS)
&& event->kind == BUFFER_SWITCH_EVENT))
return 1;
event++;
}
while (event != kbd_store_ptr);
}
else
return 1;
}
if (!(flags & READABLE_EVENTS_IGNORE_SQUEEZABLES)
&& !NILP (do_mouse_tracking) && some_mouse_moved ())
return 1;
if (single_kboard)
{
if (current_kboard->kbd_queue_has_data)
return 1;
}
else
{
KBOARD *kb;
for (kb = all_kboards; kb; kb = kb->next_kboard)
if (kb->kbd_queue_has_data)
return 1;
}
return 0;
}
/* Set this for debugging, to have a way to get out */
int stop_character EXTERNALLY_VISIBLE;
static KBOARD *
event_to_kboard (struct input_event *event)
{
/* Not applicable for these special events. */
if (event->kind == SELECTION_REQUEST_EVENT
|| event->kind == SELECTION_CLEAR_EVENT)
return NULL;
else
{
Lisp_Object obj = event->frame_or_window;
/* There are some events that set this field to nil or string. */
if (WINDOWP (obj))
obj = WINDOW_FRAME (XWINDOW (obj));
/* Also ignore dead frames here. */
return ((FRAMEP (obj) && FRAME_LIVE_P (XFRAME (obj)))
? FRAME_KBOARD (XFRAME (obj)) : NULL);
}
}
#ifdef subprocesses
/* Return the number of slots occupied in kbd_buffer. */
static int
kbd_buffer_nr_stored (void)
{
return kbd_fetch_ptr == kbd_store_ptr
? 0
: (kbd_fetch_ptr < kbd_store_ptr
? kbd_store_ptr - kbd_fetch_ptr
: ((kbd_buffer + KBD_BUFFER_SIZE) - kbd_fetch_ptr
+ (kbd_store_ptr - kbd_buffer)));
}
#endif /* Store an event obtained at interrupt level into kbd_buffer, fifo */
void
kbd_buffer_store_event (register struct input_event *event)
{
kbd_buffer_store_event_hold (event, 0);
}
/* Store EVENT obtained at interrupt level into kbd_buffer, fifo.
If HOLD_QUIT is 0, just stuff EVENT into the fifo.
Else, if HOLD_QUIT.kind != NO_EVENT, discard EVENT.
Else, if EVENT is a quit event, store the quit event
in HOLD_QUIT, and return (thus ignoring further events).
This is used to postpone the processing of the quit event until all
subsequent input events have been parsed (and discarded). */
void
kbd_buffer_store_buffered_event (union buffered_input_event *event,
struct input_event *hold_quit)
{
if (event->kind == NO_EVENT)
emacs_abort ();
if (hold_quit && hold_quit->kind != NO_EVENT)
return;
if (event->kind == ASCII_KEYSTROKE_EVENT)
{
int c = event->ie.code & 0377;
if (event->ie.modifiers & ctrl_modifier)
c = make_ctrl_char (c);
c |= (event->ie.modifiers
& (meta_modifier | alt_modifier
| hyper_modifier | super_modifier));
if (c == quit_char)
{
KBOARD *kb = FRAME_KBOARD (XFRAME (event->ie.frame_or_window));
if (single_kboard && kb != current_kboard)
{
kset_kbd_queue
(kb, list2 (make_lispy_switch_frame (event->ie.frame_or_window),
make_number (c)));
kb->kbd_queue_has_data = true;
union buffered_input_event *sp;
for (sp = kbd_fetch_ptr; sp != kbd_store_ptr; sp++)
{
if (sp == kbd_buffer + KBD_BUFFER_SIZE)
sp = kbd_buffer;
if (event_to_kboard (&sp->ie) == kb)
{
sp->ie.kind = NO_EVENT;
sp->ie.frame_or_window = Qnil;
sp->ie.arg = Qnil;
}
}
return;
}
if (hold_quit)
{
*hold_quit = event->ie;
return;
}
/* If this results in a quit_char being returned to Emacs as
input, set Vlast_event_frame properly. If this doesn't
get returned to Emacs as an event, the next event read
will set Vlast_event_frame again, so this is safe to do. */
{
Lisp_Object focus;
focus = FRAME_FOCUS_FRAME (XFRAME (event->ie.frame_or_window));
if (NILP (focus))
focus = event->ie.frame_or_window;
internal_last_event_frame = focus;
Vlast_event_frame = focus;
}
handle_interrupt (0);
return;
}
if (c && c == stop_character)
{
sys_suspend ();
return;
}
}
/* Don't insert two BUFFER_SWITCH_EVENT's in a row.
Just ignore the second one. */
else if (event->kind == BUFFER_SWITCH_EVENT
&& kbd_fetch_ptr != kbd_store_ptr
&& ((kbd_store_ptr == kbd_buffer
? kbd_buffer + KBD_BUFFER_SIZE - 1
: kbd_store_ptr - 1)->kind) == BUFFER_SWITCH_EVENT)
return;
if (kbd_store_ptr - kbd_buffer == KBD_BUFFER_SIZE)
kbd_store_ptr = kbd_buffer;
/* Don't let the very last slot in the buffer become full,
since that would make the two pointers equal,
and that is indistinguishable from an empty buffer.
Discard the event if it would fill the last slot. */
if (kbd_fetch_ptr - 1 != kbd_store_ptr)
{
*kbd_store_ptr = *event;
++kbd_store_ptr;
#ifdef subprocesses
if (kbd_buffer_nr_stored () > KBD_BUFFER_SIZE / 2
&& ! kbd_on_hold_p ())
{
/* Don't read keyboard input until we have processed kbd_buffer.
This happens when pasting text longer than KBD_BUFFER_SIZE/2. */
hold_keyboard_input ();
unrequest_sigio ();
stop_polling ();
}
#endif /* subprocesses */
}
Lisp_Object ignore_event;
switch (event->kind)
{
case FOCUS_IN_EVENT: ignore_event = Qfocus_in; break;
case FOCUS_OUT_EVENT: ignore_event = Qfocus_out; break;
case HELP_EVENT: ignore_event = Qhelp_echo; break;
case ICONIFY_EVENT: ignore_event = Qiconify_frame; break;
case DEICONIFY_EVENT: ignore_event = Qmake_frame_visible; break;
case SELECTION_REQUEST_EVENT: ignore_event = Qselection_request; break;
default: ignore_event = Qnil; break;
}
/* If we're inside while-no-input, and this event qualifies
as input, set quit-flag to cause an interrupt. */
if (!NILP (Vthrow_on_input)
&& NILP (Fmemq (ignore_event, Vwhile_no_input_ignore_events)))
Vquit_flag = Vthrow_on_input;
}
#ifdef HAVE_X11
/* Put a selection input event back in the head of the event queue. */
void
kbd_buffer_unget_event (struct selection_input_event *event)
{
if (kbd_fetch_ptr == kbd_buffer)
kbd_fetch_ptr = kbd_buffer + KBD_BUFFER_SIZE;
/* Don't let the very last slot in the buffer become full, */
union buffered_input_event *kp = kbd_fetch_ptr - 1;
if (kp != kbd_store_ptr)
{
kp->sie = *event;
kbd_fetch_ptr = kp;
}
}
#endif
/* Limit help event positions to this range, to avoid overflow problems. */
#define INPUT_EVENT_POS_MAX \
((ptrdiff_t) min (PTRDIFF_MAX, min (TYPE_MAXIMUM (Time) / 2, \
MOST_POSITIVE_FIXNUM)))
#define INPUT_EVENT_POS_MIN (-1 - INPUT_EVENT_POS_MAX)
/* Return a Time that encodes position POS. POS must be in range. */
static Time
position_to_Time (ptrdiff_t pos)
{
eassert (INPUT_EVENT_POS_MIN <= pos && pos <= INPUT_EVENT_POS_MAX);
return pos;
}
/* Return the position that ENCODED_POS encodes.
Avoid signed integer overflow. */
static ptrdiff_t
Time_to_position (Time encoded_pos)
{
if (encoded_pos <= INPUT_EVENT_POS_MAX)
return encoded_pos;
Time encoded_pos_min = INPUT_EVENT_POS_MIN;
eassert (encoded_pos_min <= encoded_pos);
ptrdiff_t notpos = -1 - encoded_pos;
return -1 - notpos;
}
/* Generate a HELP_EVENT input_event and store it in the keyboard
buffer.
HELP is the help form.
FRAME and WINDOW are the frame and window where the help is
generated. OBJECT is the Lisp object where the help was found (a
buffer, a string, an overlay, or nil if neither from a string nor
from a buffer). POS is the position within OBJECT where the help
was found. */
void
gen_help_event (Lisp_Object help, Lisp_Object frame, Lisp_Object window,
Lisp_Object object, ptrdiff_t pos)
{
struct input_event event;
event.kind = HELP_EVENT;
event.frame_or_window = frame;
event.arg = object;
event.x = WINDOWP (window) ? window : frame;
event.y = help;
event.timestamp = position_to_Time (pos);
kbd_buffer_store_event (&event);
}
/* Store HELP_EVENTs for HELP on FRAME in the input queue. */
void
kbd_buffer_store_help_event (Lisp_Object frame, Lisp_Object help)
{
struct input_event event;
event.kind = HELP_EVENT;
event.frame_or_window = frame;
event.arg = Qnil;
event.x = Qnil;
event.y = help;
event.timestamp = 0;
kbd_buffer_store_event (&event);
}
\f
/* Discard any mouse events in the event buffer by setting them to
NO_EVENT. */
void
discard_mouse_events (void)
{
union buffered_input_event *sp;
for (sp = kbd_fetch_ptr; sp != kbd_store_ptr; sp++)
{
if (sp == kbd_buffer + KBD_BUFFER_SIZE)
sp = kbd_buffer;
if (sp->kind == MOUSE_CLICK_EVENT
|| sp->kind == WHEEL_EVENT
|| sp->kind == HORIZ_WHEEL_EVENT
#ifdef HAVE_GPM
|| sp->kind == GPM_CLICK_EVENT
#endif
|| sp->kind == SCROLL_BAR_CLICK_EVENT
|| sp->kind == HORIZONTAL_SCROLL_BAR_CLICK_EVENT)
{
sp->kind = NO_EVENT;
}
}
}
/* Return true if there are any real events waiting in the event
buffer, not counting `NO_EVENT's.
Discard NO_EVENT events at the front of the input queue, possibly
leaving the input queue empty if there are no real input events. */
bool
kbd_buffer_events_waiting (void)
{
union buffered_input_event *sp;
for (sp = kbd_fetch_ptr;
sp != kbd_store_ptr && sp->kind == NO_EVENT;
++sp)
{
if (sp == kbd_buffer + KBD_BUFFER_SIZE)
sp = kbd_buffer;
}
kbd_fetch_ptr = sp;
return sp != kbd_store_ptr && sp->kind != NO_EVENT;
}
\f
/* Clear input event EVENT. */
static void
clear_event (union buffered_input_event *event)
{
event->kind = NO_EVENT;
}
/* Read one event from the event buffer, waiting if necessary.
The value is a Lisp object representing the event.
The value is nil for an event that should be ignored,
or that was handled here.
We always read and discard one event. */
static Lisp_Object
kbd_buffer_get_event (KBOARD **kbp,
bool *used_mouse_menu,
struct timespec *end_time)
{
Lisp_Object obj;
#ifdef subprocesses
if (kbd_on_hold_p () && kbd_buffer_nr_stored () < KBD_BUFFER_SIZE / 4)
{
/* Start reading input again because we have processed enough to
be able to accept new events again. */
unhold_keyboard_input ();
request_sigio ();
start_polling ();
}
#endif /* subprocesses */
#if !defined HAVE_DBUS && !defined USE_FILE_NOTIFY
if (noninteractive
/* In case we are running as a daemon, only do this before
detaching from the terminal. */
|| (IS_DAEMON && DAEMON_RUNNING))
{
int c = getchar_unlocked ();
XSETINT (obj, c);
*kbp = current_kboard;
return obj;
}
#endif /* !defined HAVE_DBUS && !defined USE_FILE_NOTIFY */
/* Wait until there is input available. */
for (;;)
{
/* Break loop if there's an unread command event. Needed in
moused window autoselection which uses a timer to insert such
events. */
if (CONSP (Vunread_command_events))
break;
if (kbd_fetch_ptr != kbd_store_ptr)
break;
if (!NILP (do_mouse_tracking) && some_mouse_moved ())
break;
/* If the quit flag is set, then read_char will return
quit_char, so that counts as "available input." */
if (!NILP (Vquit_flag))
quit_throw_to_read_char (0);
/* One way or another, wait until input is available; then, if
interrupt handlers have not read it, read it now. */
#ifdef USABLE_SIGIO
gobble_input ();
#endif
if (kbd_fetch_ptr != kbd_store_ptr)
break;
if (!NILP (do_mouse_tracking) && some_mouse_moved ())
break;
if (end_time)
{
struct timespec now = current_timespec ();
if (timespec_cmp (*end_time, now) <= 0)
return Qnil; /* Finished waiting. */
else
{
struct timespec duration = timespec_sub (*end_time, now);
wait_reading_process_output (min (duration.tv_sec,
WAIT_READING_MAX),
duration.tv_nsec,
-1, 1, Qnil, NULL, 0);
}
}
else
{
bool do_display = true;
if (FRAME_TERMCAP_P (SELECTED_FRAME ()))
{
struct tty_display_info *tty = CURTTY ();
/* When this TTY is displaying a menu, we must prevent
any redisplay, because we modify the frame's glyph
matrix behind the back of the display engine. */
if (tty->showing_menu)
do_display = false;
}
wait_reading_process_output (0, 0, -1, do_display, Qnil, NULL, 0);
}
if (!interrupt_input && kbd_fetch_ptr == kbd_store_ptr)
gobble_input ();
}
if (CONSP (Vunread_command_events))
{
Lisp_Object first;
first = XCAR (Vunread_command_events);
Vunread_command_events = XCDR (Vunread_command_events);
*kbp = current_kboard;
return first;
}
/* At this point, we know that there is a readable event available
somewhere. If the event queue is empty, then there must be a
mouse movement enabled and available. */
if (kbd_fetch_ptr != kbd_store_ptr)
{
union buffered_input_event *event;
event = ((kbd_fetch_ptr < kbd_buffer + KBD_BUFFER_SIZE)
? kbd_fetch_ptr
: kbd_buffer);
*kbp = event_to_kboard (&event->ie);
if (*kbp == 0)
*kbp = current_kboard; /* Better than returning null ptr? */
obj = Qnil;
/* These two kinds of events get special handling
and don't actually appear to the command loop.
We return nil for them. */
if (event->kind == SELECTION_REQUEST_EVENT
|| event->kind == SELECTION_CLEAR_EVENT)
{
#ifdef HAVE_X11
/* Remove it from the buffer before processing it,
since otherwise swallow_events will see it
and process it again. */
struct selection_input_event copy = event->sie;
kbd_fetch_ptr = event + 1;
input_pending = readable_events (0);
x_handle_selection_event (©);
#else
/* We're getting selection request events, but we don't have
a window system. */
emacs_abort ();
#endif
}
#if defined (HAVE_NS)
else if (event->kind == NS_TEXT_EVENT)
{
if (event->ie.code == KEY_NS_PUT_WORKING_TEXT)
obj = list1 (intern ("ns-put-working-text"));
else
obj = list1 (intern ("ns-unput-working-text"));
kbd_fetch_ptr = event + 1;
if (used_mouse_menu)
*used_mouse_menu = true;
}
#endif
#if defined (HAVE_X11) || defined (HAVE_NTGUI) \
|| defined (HAVE_NS)
else if (event->kind == DELETE_WINDOW_EVENT)
{
/* Make an event (delete-frame (FRAME)). */
obj = list2 (Qdelete_frame, list1 (event->ie.frame_or_window));
kbd_fetch_ptr = event + 1;
}
#endif
#ifdef HAVE_NTGUI
else if (event->kind == END_SESSION_EVENT)
{
/* Make an event (end-session). */
obj = list1 (Qend_session);
kbd_fetch_ptr = event + 1;
}
#endif
#if defined (HAVE_X11) || defined (HAVE_NTGUI) \
|| defined (HAVE_NS)
else if (event->kind == ICONIFY_EVENT)
{
/* Make an event (iconify-frame (FRAME)). */
obj = list2 (Qiconify_frame, list1 (event->ie.frame_or_window));
kbd_fetch_ptr = event + 1;
}
else if (event->kind == DEICONIFY_EVENT)
{
/* Make an event (make-frame-visible (FRAME)). */
obj = list2 (Qmake_frame_visible, list1 (event->ie.frame_or_window));
kbd_fetch_ptr = event + 1;
}
#endif
else if (event->kind == BUFFER_SWITCH_EVENT)
{
/* The value doesn't matter here; only the type is tested. */
XSETBUFFER (obj, current_buffer);
kbd_fetch_ptr = event + 1;
}
#if defined (USE_X_TOOLKIT) || defined (HAVE_NTGUI) \
|| defined (HAVE_NS) || defined (USE_GTK)
else if (event->kind == MENU_BAR_ACTIVATE_EVENT)
{
kbd_fetch_ptr = event + 1;
input_pending = readable_events (0);
if (FRAME_LIVE_P (XFRAME (event->ie.frame_or_window)))
x_activate_menubar (XFRAME (event->ie.frame_or_window));
}
#endif
#ifdef HAVE_NTGUI
else if (event->kind == LANGUAGE_CHANGE_EVENT)
{
/* Make an event (language-change FRAME CODEPAGE LANGUAGE-ID). */
obj = list4 (Qlanguage_change,
event->ie.frame_or_window,
make_number (event->ie.code),
make_number (event->ie.modifiers));
kbd_fetch_ptr = event + 1;
}
#endif
#ifdef USE_FILE_NOTIFY
else if (event->kind == FILE_NOTIFY_EVENT)
{
#ifdef HAVE_W32NOTIFY
/* Make an event (file-notify (DESCRIPTOR ACTION FILE) CALLBACK). */
obj = list3 (Qfile_notify, event->ie.arg, event->ie.frame_or_window);
#else
obj = make_lispy_event (&event->ie);
#endif
kbd_fetch_ptr = event + 1;
}
#endif /* USE_FILE_NOTIFY */
else if (event->kind == SAVE_SESSION_EVENT)
{
obj = list2 (Qsave_session, event->ie.arg);
kbd_fetch_ptr = event + 1;
}
/* Just discard these, by returning nil.
With MULTI_KBOARD, these events are used as placeholders
when we need to randomly delete events from the queue.
(They shouldn't otherwise be found in the buffer,
but on some machines it appears they do show up
even without MULTI_KBOARD.) */
/* On Windows NT/9X, NO_EVENT is used to delete extraneous
mouse events during a popup-menu call. */
else if (event->kind == NO_EVENT)
kbd_fetch_ptr = event + 1;
else if (event->kind == HELP_EVENT)
{
Lisp_Object object, position, help, frame, window;
frame = event->ie.frame_or_window;
object = event->ie.arg;
position = make_number (Time_to_position (event->ie.timestamp));
window = event->ie.x;
help = event->ie.y;
clear_event (event);
kbd_fetch_ptr = event + 1;
if (!WINDOWP (window))
window = Qnil;
obj = Fcons (Qhelp_echo,
list5 (frame, help, window, object, position));
}
else if (event->kind == FOCUS_IN_EVENT)
{
/* Notification of a FocusIn event. The frame receiving the
focus is in event->frame_or_window. Generate a
switch-frame event if necessary. */
Lisp_Object frame, focus;
frame = event->ie.frame_or_window;
focus = FRAME_FOCUS_FRAME (XFRAME (frame));
if (FRAMEP (focus))
frame = focus;
if (
#ifdef HAVE_X11
! NILP (event->ie.arg)
&&
#endif
!EQ (frame, internal_last_event_frame)
&& !EQ (frame, selected_frame))
obj = make_lispy_switch_frame (frame);
else
obj = make_lispy_focus_in (frame);
internal_last_event_frame = frame;
kbd_fetch_ptr = event + 1;
}
else if (event->kind == FOCUS_OUT_EVENT)
{
#ifdef HAVE_WINDOW_SYSTEM
Display_Info *di;
Lisp_Object frame = event->ie.frame_or_window;
bool focused = false;
for (di = x_display_list; di && ! focused; di = di->next)
focused = di->x_highlight_frame != 0;
if (!focused)
obj = make_lispy_focus_out (frame);
#endif /* HAVE_WINDOW_SYSTEM */
kbd_fetch_ptr = event + 1;
}
#ifdef HAVE_DBUS
else if (event->kind == DBUS_EVENT)
{
obj = make_lispy_event (&event->ie);
kbd_fetch_ptr = event + 1;
}
#endif
#if defined (HAVE_X11) || defined (HAVE_NTGUI) || defined (HAVE_NS)
else if (event->kind == MOVE_FRAME_EVENT)
{
/* Make an event (move-frame (FRAME)). */
obj = list2 (Qmove_frame, list1 (event->ie.frame_or_window));
kbd_fetch_ptr = event + 1;
}
#endif
#ifdef HAVE_XWIDGETS
else if (event->kind == XWIDGET_EVENT)
{
obj = make_lispy_event (&event->ie);
kbd_fetch_ptr = event + 1;
}
#endif
else if (event->kind == CONFIG_CHANGED_EVENT)
{
obj = make_lispy_event (&event->ie);
kbd_fetch_ptr = event + 1;
}
else if (event->kind == SELECT_WINDOW_EVENT)
{
obj = list2 (Qselect_window, list1 (event->ie.frame_or_window));
kbd_fetch_ptr = event + 1;
}
else
{
/* If this event is on a different frame, return a switch-frame this
time, and leave the event in the queue for next time. */
Lisp_Object frame;
Lisp_Object focus;
frame = event->ie.frame_or_window;
if (CONSP (frame))
frame = XCAR (frame);
else if (WINDOWP (frame))
frame = WINDOW_FRAME (XWINDOW (frame));
focus = FRAME_FOCUS_FRAME (XFRAME (frame));
if (! NILP (focus))
frame = focus;
if (! EQ (frame, internal_last_event_frame)
&& !EQ (frame, selected_frame))
obj = make_lispy_switch_frame (frame);
internal_last_event_frame = frame;
/* If we didn't decide to make a switch-frame event, go ahead
and build a real event from the queue entry. */
if (NILP (obj))
{
obj = make_lispy_event (&event->ie);
#if defined (USE_X_TOOLKIT) || defined (HAVE_NTGUI) \
|| defined (HAVE_NS) || defined (USE_GTK)
/* If this was a menu selection, then set the flag to inhibit
writing to last_nonmenu_event. Don't do this if the event
we're returning is (menu-bar), though; that indicates the
beginning of the menu sequence, and we might as well leave
that as the `event with parameters' for this selection. */
if (used_mouse_menu
&& !EQ (event->ie.frame_or_window, event->ie.arg)
&& (event->kind == MENU_BAR_EVENT
|| event->kind == TOOL_BAR_EVENT))
*used_mouse_menu = true;
#endif
#ifdef HAVE_NS
/* Certain system events are non-key events. */
if (used_mouse_menu
&& event->kind == NS_NONKEY_EVENT)
*used_mouse_menu = true;
#endif
/* Wipe out this event, to catch bugs. */
clear_event (event);
kbd_fetch_ptr = event + 1;
}
}
}
/* Try generating a mouse motion event. */
else if (!NILP (do_mouse_tracking) && some_mouse_moved ())
{
struct frame *f = some_mouse_moved ();
Lisp_Object bar_window;
enum scroll_bar_part part;
Lisp_Object x, y;
Time t;
*kbp = current_kboard;
/* Note that this uses F to determine which terminal to look at.
If there is no valid info, it does not store anything
so x remains nil. */
x = Qnil;
/* XXX Can f or mouse_position_hook be NULL here? */
if (f && FRAME_TERMINAL (f)->mouse_position_hook)
(*FRAME_TERMINAL (f)->mouse_position_hook) (&f, 0, &bar_window,
&part, &x, &y, &t);
obj = Qnil;
/* Decide if we should generate a switch-frame event. Don't
generate switch-frame events for motion outside of all Emacs
frames. */
if (!NILP (x) && f)
{
Lisp_Object frame;
frame = FRAME_FOCUS_FRAME (f);
if (NILP (frame))
XSETFRAME (frame, f);
if (! EQ (frame, internal_last_event_frame)
&& !EQ (frame, selected_frame))
obj = make_lispy_switch_frame (frame);
internal_last_event_frame = frame;
}
/* If we didn't decide to make a switch-frame event, go ahead and
return a mouse-motion event. */
if (!NILP (x) && NILP (obj))
obj = make_lispy_movement (f, bar_window, part, x, y, t);
}
else
/* We were promised by the above while loop that there was
something for us to read! */
emacs_abort ();
input_pending = readable_events (0);
Vlast_event_frame = internal_last_event_frame;
return (obj);
}
\f
/* Process any non-user-visible events (currently X selection events),
without reading any user-visible events. */
static void
process_special_events (void)
{
union buffered_input_event *event;
for (event = kbd_fetch_ptr; event != kbd_store_ptr; ++event)
{
if (event == kbd_buffer + KBD_BUFFER_SIZE)
{
event = kbd_buffer;
if (event == kbd_store_ptr)
break;
}
/* If we find a stored X selection request, handle it now. */
if (event->kind == SELECTION_REQUEST_EVENT
|| event->kind == SELECTION_CLEAR_EVENT)
{
#ifdef HAVE_X11
/* Remove the event from the fifo buffer before processing;
otherwise swallow_events called recursively could see it
and process it again. To do this, we move the events
between kbd_fetch_ptr and EVENT one slot to the right,
cyclically. */
struct selection_input_event copy = event->sie;
union buffered_input_event *beg
= (kbd_fetch_ptr == kbd_buffer + KBD_BUFFER_SIZE)
? kbd_buffer : kbd_fetch_ptr;
if (event > beg)
memmove (beg + 1, beg, (event - beg) * sizeof *beg);
else if (event < beg)
{
if (event > kbd_buffer)
memmove (kbd_buffer + 1, kbd_buffer,
(event - kbd_buffer) * sizeof *kbd_buffer);
*kbd_buffer = *(kbd_buffer + KBD_BUFFER_SIZE - 1);
if (beg < kbd_buffer + KBD_BUFFER_SIZE - 1)
memmove (beg + 1, beg,
(kbd_buffer + KBD_BUFFER_SIZE - 1 - beg) * sizeof *beg);
}
if (kbd_fetch_ptr == kbd_buffer + KBD_BUFFER_SIZE)
kbd_fetch_ptr = kbd_buffer + 1;
else
kbd_fetch_ptr++;
input_pending = readable_events (0);
x_handle_selection_event (©);
#else
/* We're getting selection request events, but we don't have
a window system. */
emacs_abort ();
#endif
}
}
}
/* Process any events that are not user-visible, run timer events that
are ripe, and return, without reading any user-visible events. */
void
swallow_events (bool do_display)
{
unsigned old_timers_run;
process_special_events ();
old_timers_run = timers_run;
get_input_pending (READABLE_EVENTS_DO_TIMERS_NOW);
if (!input_pending && timers_run != old_timers_run && do_display)
redisplay_preserve_echo_area (7);
}
\f
/* Record the start of when Emacs is idle,
for the sake of running idle-time timers. */
static void
timer_start_idle (void)
{
/* If we are already in the idle state, do nothing. */
if (timespec_valid_p (timer_idleness_start_time))
return;
timer_idleness_start_time = current_timespec ();
timer_last_idleness_start_time = timer_idleness_start_time;
/* Mark all idle-time timers as once again candidates for running. */
call0 (intern ("internal-timer-start-idle"));
}
/* Record that Emacs is no longer idle, so stop running idle-time timers. */
static void
timer_stop_idle (void)
{
timer_idleness_start_time = invalid_timespec ();
}
/* Resume idle timer from last idle start time. */
static void
timer_resume_idle (void)
{
if (timespec_valid_p (timer_idleness_start_time))
return;
timer_idleness_start_time = timer_last_idleness_start_time;
}
/* List of elisp functions to call, delayed because they were generated in
a context where Elisp could not be safely run (e.g. redisplay, signal,
...). Each element has the form (FUN . ARGS). */
Lisp_Object pending_funcalls;
/* Return true if TIMER is a valid timer, placing its value into *RESULT. */
static bool
decode_timer (Lisp_Object timer, struct timespec *result)
{
Lisp_Object *vec;
if (! (VECTORP (timer) && ASIZE (timer) == 9))
return 0;
vec = XVECTOR (timer)->contents;
if (! NILP (vec[0]))
return 0;
if (! INTEGERP (vec[2]))
return false;
struct lisp_time t;
if (decode_time_components (vec[1], vec[2], vec[3], vec[8], &t, 0) <= 0)
return false;
*result = lisp_to_timespec (t);
return timespec_valid_p (*result);
}
/* Check whether a timer has fired. To prevent larger problems we simply
disregard elements that are not proper timers. Do not make a circular
timer list for the time being.
Returns the time to wait until the next timer fires. If a
timer is triggering now, return zero.
If no timer is active, return -1.
If a timer is ripe, we run it, with quitting turned off.
In that case we return 0 to indicate that a new timer_check_2 call
should be done. */
static struct timespec
timer_check_2 (Lisp_Object timers, Lisp_Object idle_timers)
{
struct timespec nexttime;
struct timespec now;
struct timespec idleness_now;
Lisp_Object chosen_timer;
nexttime = invalid_timespec ();
chosen_timer = Qnil;
/* First run the code that was delayed. */
while (CONSP (pending_funcalls))
{
Lisp_Object funcall = XCAR (pending_funcalls);
pending_funcalls = XCDR (pending_funcalls);
safe_call2 (Qapply, XCAR (funcall), XCDR (funcall));
}
if (CONSP (timers) || CONSP (idle_timers))
{
now = current_timespec ();
idleness_now = (timespec_valid_p (timer_idleness_start_time)
? timespec_sub (now, timer_idleness_start_time)
: make_timespec (0, 0));
}
while (CONSP (timers) || CONSP (idle_timers))
{
Lisp_Object timer = Qnil, idle_timer = Qnil;
struct timespec timer_time, idle_timer_time;
struct timespec difference;
struct timespec timer_difference = invalid_timespec ();
struct timespec idle_timer_difference = invalid_timespec ();
bool ripe, timer_ripe = 0, idle_timer_ripe = 0;
/* Set TIMER and TIMER_DIFFERENCE
based on the next ordinary timer.
TIMER_DIFFERENCE is the distance in time from NOW to when
this timer becomes ripe.
Skip past invalid timers and timers already handled. */
if (CONSP (timers))
{
timer = XCAR (timers);
if (! decode_timer (timer, &timer_time))
{
timers = XCDR (timers);
continue;
}
timer_ripe = timespec_cmp (timer_time, now) <= 0;
timer_difference = (timer_ripe
? timespec_sub (now, timer_time)
: timespec_sub (timer_time, now));
}
/* Likewise for IDLE_TIMER and IDLE_TIMER_DIFFERENCE
based on the next idle timer. */
if (CONSP (idle_timers))
{
idle_timer = XCAR (idle_timers);
if (! decode_timer (idle_timer, &idle_timer_time))
{
idle_timers = XCDR (idle_timers);
continue;
}
idle_timer_ripe = timespec_cmp (idle_timer_time, idleness_now) <= 0;
idle_timer_difference
= (idle_timer_ripe
? timespec_sub (idleness_now, idle_timer_time)
: timespec_sub (idle_timer_time, idleness_now));
}
/* Decide which timer is the next timer,
and set CHOSEN_TIMER, DIFFERENCE, and RIPE accordingly.
Also step down the list where we found that timer. */
if (timespec_valid_p (timer_difference)
&& (! timespec_valid_p (idle_timer_difference)
|| idle_timer_ripe < timer_ripe
|| (idle_timer_ripe == timer_ripe
&& ((timer_ripe
? timespec_cmp (idle_timer_difference,
timer_difference)
: timespec_cmp (timer_difference,
idle_timer_difference))
< 0))))
{
chosen_timer = timer;
timers = XCDR (timers);
difference = timer_difference;
ripe = timer_ripe;
}
else
{
chosen_timer = idle_timer;
idle_timers = XCDR (idle_timers);
difference = idle_timer_difference;
ripe = idle_timer_ripe;
}
/* If timer is ripe, run it if it hasn't been run. */
if (ripe)
{
if (NILP (AREF (chosen_timer, 0)))
{
ptrdiff_t count = SPECPDL_INDEX ();
Lisp_Object old_deactivate_mark = Vdeactivate_mark;
/* Mark the timer as triggered to prevent problems if the lisp
code fails to reschedule it right. */
ASET (chosen_timer, 0, Qt);
specbind (Qinhibit_quit, Qt);
call1 (Qtimer_event_handler, chosen_timer);
Vdeactivate_mark = old_deactivate_mark;
timers_run++;
unbind_to (count, Qnil);
/* Since we have handled the event,
we don't need to tell the caller to wake up and do it. */
/* But the caller must still wait for the next timer, so
return 0 to indicate that. */
}
nexttime = make_timespec (0, 0);
break;
}
else
/* When we encounter a timer that is still waiting,
return the amount of time to wait before it is ripe. */
{
return difference;
}
}
/* No timers are pending in the future. */
/* Return 0 if we generated an event, and -1 if not. */
return nexttime;
}
/* Check whether a timer has fired. To prevent larger problems we simply
disregard elements that are not proper timers. Do not make a circular
timer list for the time being.
Returns the time to wait until the next timer fires.
If no timer is active, return an invalid value.
As long as any timer is ripe, we run it. */
struct timespec
timer_check (void)
{
struct timespec nexttime;
Lisp_Object timers, idle_timers;
Lisp_Object tem = Vinhibit_quit;
Vinhibit_quit = Qt;
/* We use copies of the timers' lists to allow a timer to add itself
again, without locking up Emacs if the newly added timer is
already ripe when added. */
/* Always consider the ordinary timers. */
timers = Fcopy_sequence (Vtimer_list);
/* Consider the idle timers only if Emacs is idle. */
if (timespec_valid_p (timer_idleness_start_time))
idle_timers = Fcopy_sequence (Vtimer_idle_list);
else
idle_timers = Qnil;
Vinhibit_quit = tem;
do
{
nexttime = timer_check_2 (timers, idle_timers);
}
while (nexttime.tv_sec == 0 && nexttime.tv_nsec == 0);
return nexttime;
}
DEFUN ("current-idle-time", Fcurrent_idle_time, Scurrent_idle_time, 0, 0, 0,
doc: /* Return the current length of Emacs idleness, or nil.
The value when Emacs is idle is a list of four integers (HIGH LOW USEC PSEC)
in the same style as (current-time).
The value when Emacs is not idle is nil.
PSEC is a multiple of the system clock resolution. */)
(void)
{
if (timespec_valid_p (timer_idleness_start_time))
return make_lisp_time (timespec_sub (current_timespec (),
timer_idleness_start_time));
return Qnil;
}
\f
/* Caches for modify_event_symbol. */
static Lisp_Object accent_key_syms;
static Lisp_Object func_key_syms;
static Lisp_Object mouse_syms;
static Lisp_Object wheel_syms;
static Lisp_Object drag_n_drop_syms;
/* This is a list of keysym codes for special "accent" characters.
It parallels lispy_accent_keys. */
static const int lispy_accent_codes[] =
{
#ifdef XK_dead_circumflex
XK_dead_circumflex,
#else
0,
#endif
#ifdef XK_dead_grave
XK_dead_grave,
#else
0,
#endif
#ifdef XK_dead_tilde
XK_dead_tilde,
#else
0,
#endif
#ifdef XK_dead_diaeresis
XK_dead_diaeresis,
#else
0,
#endif
#ifdef XK_dead_macron
XK_dead_macron,
#else
0,
#endif
#ifdef XK_dead_degree
XK_dead_degree,
#else
0,
#endif
#ifdef XK_dead_acute
XK_dead_acute,
#else
0,
#endif
#ifdef XK_dead_cedilla
XK_dead_cedilla,
#else
0,
#endif
#ifdef XK_dead_breve
XK_dead_breve,
#else
0,
#endif
#ifdef XK_dead_ogonek
XK_dead_ogonek,
#else
0,
#endif
#ifdef XK_dead_caron
XK_dead_caron,
#else
0,
#endif
#ifdef XK_dead_doubleacute
XK_dead_doubleacute,
#else
0,
#endif
#ifdef XK_dead_abovedot
XK_dead_abovedot,
#else
0,
#endif
#ifdef XK_dead_abovering
XK_dead_abovering,
#else
0,
#endif
#ifdef XK_dead_iota
XK_dead_iota,
#else
0,
#endif
#ifdef XK_dead_belowdot
XK_dead_belowdot,
#else
0,
#endif
#ifdef XK_dead_voiced_sound
XK_dead_voiced_sound,
#else
0,
#endif
#ifdef XK_dead_semivoiced_sound
XK_dead_semivoiced_sound,
#else
0,
#endif
#ifdef XK_dead_hook
XK_dead_hook,
#else
0,
#endif
#ifdef XK_dead_horn
XK_dead_horn,
#else
0,
#endif
};
/* This is a list of Lisp names for special "accent" characters.
It parallels lispy_accent_codes. */
static const char *const lispy_accent_keys[] =
{
"dead-circumflex",
"dead-grave",
"dead-tilde",
"dead-diaeresis",
"dead-macron",
"dead-degree",
"dead-acute",
"dead-cedilla",
"dead-breve",
"dead-ogonek",
"dead-caron",
"dead-doubleacute",
"dead-abovedot",
"dead-abovering",
"dead-iota",
"dead-belowdot",
"dead-voiced-sound",
"dead-semivoiced-sound",
"dead-hook",
"dead-horn",
};
#ifdef HAVE_NTGUI
#define FUNCTION_KEY_OFFSET 0x0
const char *const lispy_function_keys[] =
{
0, /* 0 */
0, /* VK_LBUTTON 0x01 */
0, /* VK_RBUTTON 0x02 */
"cancel", /* VK_CANCEL 0x03 */
0, /* VK_MBUTTON 0x04 */
0, 0, 0, /* 0x05 .. 0x07 */
"backspace", /* VK_BACK 0x08 */
"tab", /* VK_TAB 0x09 */
0, 0, /* 0x0A .. 0x0B */
"clear", /* VK_CLEAR 0x0C */
"return", /* VK_RETURN 0x0D */
0, 0, /* 0x0E .. 0x0F */
0, /* VK_SHIFT 0x10 */
0, /* VK_CONTROL 0x11 */
0, /* VK_MENU 0x12 */
"pause", /* VK_PAUSE 0x13 */
"capslock", /* VK_CAPITAL 0x14 */
"kana", /* VK_KANA/VK_HANGUL 0x15 */
0, /* 0x16 */
"junja", /* VK_JUNJA 0x17 */
"final", /* VK_FINAL 0x18 */
"kanji", /* VK_KANJI/VK_HANJA 0x19 */
0, /* 0x1A */
"escape", /* VK_ESCAPE 0x1B */
"convert", /* VK_CONVERT 0x1C */
"non-convert", /* VK_NONCONVERT 0x1D */
"accept", /* VK_ACCEPT 0x1E */
"mode-change", /* VK_MODECHANGE 0x1F */
0, /* VK_SPACE 0x20 */
"prior", /* VK_PRIOR 0x21 */
"next", /* VK_NEXT 0x22 */
"end", /* VK_END 0x23 */
"home", /* VK_HOME 0x24 */
"left", /* VK_LEFT 0x25 */
"up", /* VK_UP 0x26 */
"right", /* VK_RIGHT 0x27 */
"down", /* VK_DOWN 0x28 */
"select", /* VK_SELECT 0x29 */
"print", /* VK_PRINT 0x2A */
"execute", /* VK_EXECUTE 0x2B */
"snapshot", /* VK_SNAPSHOT 0x2C */
"insert", /* VK_INSERT 0x2D */
"delete", /* VK_DELETE 0x2E */
"help", /* VK_HELP 0x2F */
/* VK_0 thru VK_9 are the same as ASCII '0' thru '9' (0x30 - 0x39) */
0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
0, 0, 0, 0, 0, 0, 0, /* 0x3A .. 0x40 */
/* VK_A thru VK_Z are the same as ASCII 'A' thru 'Z' (0x41 - 0x5A) */
0, 0, 0, 0, 0, 0, 0, 0, 0,
0, 0, 0, 0, 0, 0, 0, 0, 0,
0, 0, 0, 0, 0, 0, 0, 0,
"lwindow", /* VK_LWIN 0x5B */
"rwindow", /* VK_RWIN 0x5C */
"apps", /* VK_APPS 0x5D */
0, /* 0x5E */
"sleep",
"kp-0", /* VK_NUMPAD0 0x60 */
"kp-1", /* VK_NUMPAD1 0x61 */
"kp-2", /* VK_NUMPAD2 0x62 */
"kp-3", /* VK_NUMPAD3 0x63 */
"kp-4", /* VK_NUMPAD4 0x64 */
"kp-5", /* VK_NUMPAD5 0x65 */
"kp-6", /* VK_NUMPAD6 0x66 */
"kp-7", /* VK_NUMPAD7 0x67 */
"kp-8", /* VK_NUMPAD8 0x68 */
"kp-9", /* VK_NUMPAD9 0x69 */
"kp-multiply", /* VK_MULTIPLY 0x6A */
"kp-add", /* VK_ADD 0x6B */
"kp-separator", /* VK_SEPARATOR 0x6C */
"kp-subtract", /* VK_SUBTRACT 0x6D */
"kp-decimal", /* VK_DECIMAL 0x6E */
"kp-divide", /* VK_DIVIDE 0x6F */
"f1", /* VK_F1 0x70 */
"f2", /* VK_F2 0x71 */
"f3", /* VK_F3 0x72 */
"f4", /* VK_F4 0x73 */
"f5", /* VK_F5 0x74 */
"f6", /* VK_F6 0x75 */
"f7", /* VK_F7 0x76 */
"f8", /* VK_F8 0x77 */
"f9", /* VK_F9 0x78 */
"f10", /* VK_F10 0x79 */
"f11", /* VK_F11 0x7A */
"f12", /* VK_F12 0x7B */
"f13", /* VK_F13 0x7C */
"f14", /* VK_F14 0x7D */
"f15", /* VK_F15 0x7E */
"f16", /* VK_F16 0x7F */
"f17", /* VK_F17 0x80 */
"f18", /* VK_F18 0x81 */
"f19", /* VK_F19 0x82 */
"f20", /* VK_F20 0x83 */
"f21", /* VK_F21 0x84 */
"f22", /* VK_F22 0x85 */
"f23", /* VK_F23 0x86 */
"f24", /* VK_F24 0x87 */
0, 0, 0, 0, /* 0x88 .. 0x8B */
0, 0, 0, 0, /* 0x8C .. 0x8F */
"kp-numlock", /* VK_NUMLOCK 0x90 */
"scroll", /* VK_SCROLL 0x91 */
/* Not sure where the following block comes from.
Windows headers have NEC and Fujitsu specific keys in
this block, but nothing generic. */
"kp-space", /* VK_NUMPAD_CLEAR 0x92 */
"kp-enter", /* VK_NUMPAD_ENTER 0x93 */
"kp-prior", /* VK_NUMPAD_PRIOR 0x94 */
"kp-next", /* VK_NUMPAD_NEXT 0x95 */
"kp-end", /* VK_NUMPAD_END 0x96 */
"kp-home", /* VK_NUMPAD_HOME 0x97 */
"kp-left", /* VK_NUMPAD_LEFT 0x98 */
"kp-up", /* VK_NUMPAD_UP 0x99 */
"kp-right", /* VK_NUMPAD_RIGHT 0x9A */
"kp-down", /* VK_NUMPAD_DOWN 0x9B */
"kp-insert", /* VK_NUMPAD_INSERT 0x9C */
"kp-delete", /* VK_NUMPAD_DELETE 0x9D */
0, 0, /* 0x9E .. 0x9F */
/*
* VK_L* & VK_R* - left and right Alt, Ctrl and Shift virtual keys.
* Used only as parameters to GetAsyncKeyState and GetKeyState.
* No other API or message will distinguish left and right keys this way.
* 0xA0 .. 0xA5
*/
0, 0, 0, 0, 0, 0,
/* Multimedia keys. These are handled as WM_APPCOMMAND, which allows us
to enable them selectively, and gives access to a few more functions.
See lispy_multimedia_keys below. */
0, 0, 0, 0, 0, 0, 0, /* 0xA6 .. 0xAC Browser */
0, 0, 0, /* 0xAD .. 0xAF Volume */
0, 0, 0, 0, /* 0xB0 .. 0xB3 Media */
0, 0, 0, 0, /* 0xB4 .. 0xB7 Apps */
/* 0xB8 .. 0xC0 "OEM" keys - all seem to be punctuation. */
0, 0, 0, 0, 0, 0, 0, 0, 0,
/* 0xC1 - 0xDA unallocated, 0xDB-0xDF more OEM keys */
0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
0, /* 0xE0 */
"ax", /* VK_OEM_AX 0xE1 */
0, /* VK_OEM_102 0xE2 */
"ico-help", /* VK_ICO_HELP 0xE3 */
"ico-00", /* VK_ICO_00 0xE4 */
0, /* VK_PROCESSKEY 0xE5 - used by IME */
"ico-clear", /* VK_ICO_CLEAR 0xE6 */
0, /* VK_PACKET 0xE7 - used to pass Unicode chars */
0, /* 0xE8 */
"reset", /* VK_OEM_RESET 0xE9 */
"jump", /* VK_OEM_JUMP 0xEA */
"oem-pa1", /* VK_OEM_PA1 0xEB */
"oem-pa2", /* VK_OEM_PA2 0xEC */
"oem-pa3", /* VK_OEM_PA3 0xED */
"wsctrl", /* VK_OEM_WSCTRL 0xEE */
"cusel", /* VK_OEM_CUSEL 0xEF */
"oem-attn", /* VK_OEM_ATTN 0xF0 */
"finish", /* VK_OEM_FINISH 0xF1 */
"copy", /* VK_OEM_COPY 0xF2 */
"auto", /* VK_OEM_AUTO 0xF3 */
"enlw", /* VK_OEM_ENLW 0xF4 */
"backtab", /* VK_OEM_BACKTAB 0xF5 */
"attn", /* VK_ATTN 0xF6 */
"crsel", /* VK_CRSEL 0xF7 */
"exsel", /* VK_EXSEL 0xF8 */
"ereof", /* VK_EREOF 0xF9 */
"play", /* VK_PLAY 0xFA */
"zoom", /* VK_ZOOM 0xFB */
"noname", /* VK_NONAME 0xFC */
"pa1", /* VK_PA1 0xFD */
"oem_clear", /* VK_OEM_CLEAR 0xFE */
0 /* 0xFF */
};
/* Some of these duplicate the "Media keys" on newer keyboards,
but they are delivered to the application in a different way. */
static const char *const lispy_multimedia_keys[] =
{
0,
"browser-back",
"browser-forward",
"browser-refresh",
"browser-stop",
"browser-search",
"browser-favorites",
"browser-home",
"volume-mute",
"volume-down",
"volume-up",
"media-next",
"media-previous",
"media-stop",
"media-play-pause",
"mail",
"media-select",
"app-1",
"app-2",
"bass-down",
"bass-boost",
"bass-up",
"treble-down",
"treble-up",
"mic-volume-mute",
"mic-volume-down",
"mic-volume-up",
"help",
"find",
"new",
"open",
"close",
"save",
"print",
"undo",
"redo",
"copy",
"cut",
"paste",
"mail-reply",
"mail-forward",
"mail-send",
"spell-check",
"toggle-dictate-command",
"mic-toggle",
"correction-list",
"media-play",
"media-pause",
"media-record",
"media-fast-forward",
"media-rewind",
"media-channel-up",
"media-channel-down"
};
#else /* not HAVE_NTGUI */
/* This should be dealt with in XTread_socket now, and that doesn't
depend on the client system having the Kana syms defined. See also
the XK_kana_A case below. */
#if 0
#ifdef XK_kana_A
static const char *const lispy_kana_keys[] =
{
/* X Keysym value */
0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0, /* 0x400 .. 0x40f */
0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0, /* 0x410 .. 0x41f */
0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0, /* 0x420 .. 0x42f */
0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0, /* 0x430 .. 0x43f */
0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0, /* 0x440 .. 0x44f */
0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0, /* 0x450 .. 0x45f */
0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0, /* 0x460 .. 0x46f */
0,0,0,0,0,0,0,0,0,0,0,0,0,0,"overline",0,
0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0, /* 0x480 .. 0x48f */
0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0, /* 0x490 .. 0x49f */
0, "kana-fullstop", "kana-openingbracket", "kana-closingbracket",
"kana-comma", "kana-conjunctive", "kana-WO", "kana-a",
"kana-i", "kana-u", "kana-e", "kana-o",
"kana-ya", "kana-yu", "kana-yo", "kana-tsu",
"prolongedsound", "kana-A", "kana-I", "kana-U",
"kana-E", "kana-O", "kana-KA", "kana-KI",
"kana-KU", "kana-KE", "kana-KO", "kana-SA",
"kana-SHI", "kana-SU", "kana-SE", "kana-SO",
"kana-TA", "kana-CHI", "kana-TSU", "kana-TE",
"kana-TO", "kana-NA", "kana-NI", "kana-NU",
"kana-NE", "kana-NO", "kana-HA", "kana-HI",
"kana-FU", "kana-HE", "kana-HO", "kana-MA",
"kana-MI", "kana-MU", "kana-ME", "kana-MO",
"kana-YA", "kana-YU", "kana-YO", "kana-RA",
"kana-RI", "kana-RU", "kana-RE", "kana-RO",
"kana-WA", "kana-N", "voicedsound", "semivoicedsound",
0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0, /* 0x4e0 .. 0x4ef */
0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0, /* 0x4f0 .. 0x4ff */
};
#endif /* XK_kana_A */
#endif /* 0 */
#define FUNCTION_KEY_OFFSET 0xff00
/* You'll notice that this table is arranged to be conveniently
indexed by X Windows keysym values. */
static const char *const lispy_function_keys[] =
{
/* X Keysym value */
0, 0, 0, 0, 0, 0, 0, 0, /* 0xff00...0f */
"backspace", "tab", "linefeed", "clear",
0, "return", 0, 0,
0, 0, 0, "pause", /* 0xff10...1f */
0, 0, 0, 0, 0, 0, 0, "escape",
0, 0, 0, 0,
0, "kanji", "muhenkan", "henkan", /* 0xff20...2f */
"romaji", "hiragana", "katakana", "hiragana-katakana",
"zenkaku", "hankaku", "zenkaku-hankaku", "touroku",
"massyo", "kana-lock", "kana-shift", "eisu-shift",
"eisu-toggle", /* 0xff30...3f */
0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, /* 0xff40...4f */
"home", "left", "up", "right", /* 0xff50 */ /* IsCursorKey */
"down", "prior", "next", "end",
"begin", 0, 0, 0, 0, 0, 0, 0,
"select", /* 0xff60 */ /* IsMiscFunctionKey */
"print",
"execute",
"insert",
0, /* 0xff64 */
"undo",
"redo",
"menu",
"find",
"cancel",
"help",
"break", /* 0xff6b */
0, 0, 0, 0,
0, 0, 0, 0, "backtab", 0, 0, 0, /* 0xff70... */
0, 0, 0, 0, 0, 0, 0, "kp-numlock", /* 0xff78... */
"kp-space", /* 0xff80 */ /* IsKeypadKey */
0, 0, 0, 0, 0, 0, 0, 0,
"kp-tab", /* 0xff89 */
0, 0, 0,
"kp-enter", /* 0xff8d */
0, 0, 0,
"kp-f1", /* 0xff91 */
"kp-f2",
"kp-f3",
"kp-f4",
"kp-home", /* 0xff95 */
"kp-left",
"kp-up",
"kp-right",
"kp-down",
"kp-prior", /* kp-page-up */
"kp-next", /* kp-page-down */
"kp-end",
"kp-begin",
"kp-insert",
"kp-delete",
0, /* 0xffa0 */
0, 0, 0, 0, 0, 0, 0, 0, 0,
"kp-multiply", /* 0xffaa */
"kp-add",
"kp-separator",
"kp-subtract",
"kp-decimal",
"kp-divide", /* 0xffaf */
"kp-0", /* 0xffb0 */
"kp-1", "kp-2", "kp-3", "kp-4", "kp-5", "kp-6", "kp-7", "kp-8", "kp-9",
0, /* 0xffba */
0, 0,
"kp-equal", /* 0xffbd */
"f1", /* 0xffbe */ /* IsFunctionKey */
"f2",
"f3", "f4", "f5", "f6", "f7", "f8", "f9", "f10", /* 0xffc0 */
"f11", "f12", "f13", "f14", "f15", "f16", "f17", "f18",
"f19", "f20", "f21", "f22", "f23", "f24", "f25", "f26", /* 0xffd0 */
"f27", "f28", "f29", "f30", "f31", "f32", "f33", "f34",
"f35", 0, 0, 0, 0, 0, 0, 0, /* 0xffe0 */
0, 0, 0, 0, 0, 0, 0, 0,
0, 0, 0, 0, 0, 0, 0, 0, /* 0xfff0 */
0, 0, 0, 0, 0, 0, 0, "delete"
};
/* ISO 9995 Function and Modifier Keys; the first byte is 0xFE. */
#define ISO_FUNCTION_KEY_OFFSET 0xfe00
static const char *const iso_lispy_function_keys[] =
{
0, 0, 0, 0, 0, 0, 0, 0, /* 0xfe00 */
0, 0, 0, 0, 0, 0, 0, 0, /* 0xfe08 */
0, 0, 0, 0, 0, 0, 0, 0, /* 0xfe10 */
0, 0, 0, 0, 0, 0, 0, 0, /* 0xfe18 */
"iso-lefttab", /* 0xfe20 */
"iso-move-line-up", "iso-move-line-down",
"iso-partial-line-up", "iso-partial-line-down",
"iso-partial-space-left", "iso-partial-space-right",
"iso-set-margin-left", "iso-set-margin-right", /* 0xffe27, 28 */
"iso-release-margin-left", "iso-release-margin-right",
"iso-release-both-margins",
"iso-fast-cursor-left", "iso-fast-cursor-right",
"iso-fast-cursor-up", "iso-fast-cursor-down",
"iso-continuous-underline", "iso-discontinuous-underline", /* 0xfe30, 31 */
"iso-emphasize", "iso-center-object", "iso-enter", /* ... 0xfe34 */
};
#endif /* not HAVE_NTGUI */
static Lisp_Object Vlispy_mouse_stem;
static const char *const lispy_wheel_names[] =
{
"wheel-up", "wheel-down", "wheel-left", "wheel-right"
};
/* drag-n-drop events are generated when a set of selected files are
dragged from another application and dropped onto an Emacs window. */
static const char *const lispy_drag_n_drop_names[] =
{
"drag-n-drop"
};
/* An array of symbol indexes of scroll bar parts, indexed by an enum
scroll_bar_part value. Note that Qnil corresponds to
scroll_bar_nowhere and should not appear in Lisp events. */
static short const scroll_bar_parts[] = {
SYMBOL_INDEX (Qnil), SYMBOL_INDEX (Qabove_handle), SYMBOL_INDEX (Qhandle),
SYMBOL_INDEX (Qbelow_handle), SYMBOL_INDEX (Qup), SYMBOL_INDEX (Qdown),
SYMBOL_INDEX (Qtop), SYMBOL_INDEX (Qbottom), SYMBOL_INDEX (Qend_scroll),
SYMBOL_INDEX (Qratio), SYMBOL_INDEX (Qbefore_handle),
SYMBOL_INDEX (Qhorizontal_handle), SYMBOL_INDEX (Qafter_handle),
SYMBOL_INDEX (Qleft), SYMBOL_INDEX (Qright), SYMBOL_INDEX (Qleftmost),
SYMBOL_INDEX (Qrightmost), SYMBOL_INDEX (Qend_scroll), SYMBOL_INDEX (Qratio)
};
/* An array of symbol indexes of internal border parts, indexed by an enum
internal_border_part value. Note that Qnil corresponds to
internal_border_part_none and should not appear in Lisp events. */
static short const internal_border_parts[] = {
SYMBOL_INDEX (Qnil), SYMBOL_INDEX (Qleft_edge),
SYMBOL_INDEX (Qtop_left_corner), SYMBOL_INDEX (Qtop_edge),
SYMBOL_INDEX (Qtop_right_corner), SYMBOL_INDEX (Qright_edge),
SYMBOL_INDEX (Qbottom_right_corner), SYMBOL_INDEX (Qbottom_edge),
SYMBOL_INDEX (Qbottom_left_corner)
};
/* A vector, indexed by button number, giving the down-going location
of currently depressed buttons, both scroll bar and non-scroll bar.
The elements have the form
(BUTTON-NUMBER MODIFIER-MASK . REST)
where REST is the cdr of a position as it would be reported in the event.
The make_lispy_event function stores positions here to tell the
difference between click and drag events, and to store the starting
location to be included in drag events. */
static Lisp_Object button_down_location;
/* Information about the most recent up-going button event: Which
button, what location, and what time. */
static int last_mouse_button;
static int last_mouse_x;
static int last_mouse_y;
static Time button_down_time;
/* The number of clicks in this multiple-click. */
static int double_click_count;
/* X and Y are frame-relative coordinates for a click or wheel event.
Return a Lisp-style event list. */
static Lisp_Object
make_lispy_position (struct frame *f, Lisp_Object x, Lisp_Object y,
Time t)
{
enum window_part part;
Lisp_Object posn = Qnil;
Lisp_Object extra_info = Qnil;
/* Coordinate pixel positions to return. */
int xret = 0, yret = 0;
/* The window or frame under frame pixel coordinates (x,y) */
Lisp_Object window_or_frame = f
? window_from_coordinates (f, XINT (x), XINT (y), &part, 0)
: Qnil;
if (WINDOWP (window_or_frame))
{
/* It's a click in window WINDOW at frame coordinates (X,Y) */
struct window *w = XWINDOW (window_or_frame);
Lisp_Object string_info = Qnil;
ptrdiff_t textpos = 0;
int col = -1, row = -1;
int dx = -1, dy = -1;
int width = -1, height = -1;
Lisp_Object object = Qnil;
/* Pixel coordinates relative to the window corner. */
int wx = XINT (x) - WINDOW_LEFT_EDGE_X (w);
int wy = XINT (y) - WINDOW_TOP_EDGE_Y (w);
/* For text area clicks, return X, Y relative to the corner of
this text area. Note that dX, dY etc are set below, by
buffer_posn_from_coords. */
if (part == ON_TEXT)
{
xret = XINT (x) - window_box_left (w, TEXT_AREA);
yret = wy - WINDOW_HEADER_LINE_HEIGHT (w);
}
/* For mode line and header line clicks, return X, Y relative to
the left window edge. Use mode_line_string to look for a
string on the click position. */
else if (part == ON_MODE_LINE || part == ON_HEADER_LINE)
{
Lisp_Object string;
ptrdiff_t charpos;
posn = (part == ON_MODE_LINE) ? Qmode_line : Qheader_line;
/* Note that mode_line_string takes COL, ROW as pixels and
converts them to characters. */
col = wx;
row = wy;
string = mode_line_string (w, part, &col, &row, &charpos,
&object, &dx, &dy, &width, &height);
if (STRINGP (string))
string_info = Fcons (string, make_number (charpos));
textpos = -1;
xret = wx;
yret = wy;
}
/* For fringes and margins, Y is relative to the area's (and the
window's) top edge, while X is meaningless. */
else if (part == ON_LEFT_MARGIN || part == ON_RIGHT_MARGIN)
{
Lisp_Object string;
ptrdiff_t charpos;
posn = (part == ON_LEFT_MARGIN) ? Qleft_margin : Qright_margin;
col = wx;
row = wy;
string = marginal_area_string (w, part, &col, &row, &charpos,
&object, &dx, &dy, &width, &height);
if (STRINGP (string))
string_info = Fcons (string, make_number (charpos));
xret = wx;
yret = wy - WINDOW_HEADER_LINE_HEIGHT (w);
}
else if (part == ON_LEFT_FRINGE)
{
posn = Qleft_fringe;
col = 0;
xret = wx;
dx = wx
- (WINDOW_HAS_FRINGES_OUTSIDE_MARGINS (w)
? 0 : window_box_width (w, LEFT_MARGIN_AREA));
dy = yret = wy - WINDOW_HEADER_LINE_HEIGHT (w);
}
else if (part == ON_RIGHT_FRINGE)
{
posn = Qright_fringe;
col = 0;
xret = wx;
dx = wx
- window_box_width (w, LEFT_MARGIN_AREA)
- window_box_width (w, TEXT_AREA)
- (WINDOW_HAS_FRINGES_OUTSIDE_MARGINS (w)
? window_box_width (w, RIGHT_MARGIN_AREA)
: 0);
dy = yret = wy - WINDOW_HEADER_LINE_HEIGHT (w);
}
else if (part == ON_VERTICAL_BORDER)
{
posn = Qvertical_line;
width = 1;
dx = 0;
xret = wx;
dy = yret = wy;
}
else if (part == ON_VERTICAL_SCROLL_BAR)
{
posn = Qvertical_scroll_bar;
width = WINDOW_SCROLL_BAR_AREA_WIDTH (w);
dx = xret = wx;
dy = yret = wy;
}
else if (part == ON_HORIZONTAL_SCROLL_BAR)
{
posn = Qhorizontal_scroll_bar;
width = WINDOW_SCROLL_BAR_AREA_HEIGHT (w);
dx = xret = wx;
dy = yret = wy;
}
else if (part == ON_RIGHT_DIVIDER)
{
posn = Qright_divider;
width = WINDOW_RIGHT_DIVIDER_WIDTH (w);
dx = xret = wx;
dy = yret = wy;
}
else if (part == ON_BOTTOM_DIVIDER)
{
posn = Qbottom_divider;
width = WINDOW_BOTTOM_DIVIDER_WIDTH (w);
dx = xret = wx;
dy = yret = wy;
}
/* For clicks in the text area, fringes, margins, or vertical
scroll bar, call buffer_posn_from_coords to extract TEXTPOS,
the buffer position nearest to the click. */
if (!textpos)
{
Lisp_Object string2, object2 = Qnil;
struct display_pos p;
int dx2, dy2;
int width2, height2;
/* The pixel X coordinate passed to buffer_posn_from_coords
is the X coordinate relative to the text area for clicks
in text-area, right-margin/fringe and right-side vertical
scroll bar, zero otherwise. */
int x2
= (part == ON_TEXT) ? xret
: (part == ON_RIGHT_FRINGE || part == ON_RIGHT_MARGIN
|| (part == ON_VERTICAL_SCROLL_BAR
&& WINDOW_HAS_VERTICAL_SCROLL_BAR_ON_RIGHT (w)))
? (XINT (x) - window_box_left (w, TEXT_AREA))
: 0;
int y2 = wy;
string2 = buffer_posn_from_coords (w, &x2, &y2, &p,
&object2, &dx2, &dy2,
&width2, &height2);
textpos = CHARPOS (p.pos);
if (col < 0) col = x2;
if (row < 0) row = y2;
if (dx < 0) dx = dx2;
if (dy < 0) dy = dy2;
if (width < 0) width = width2;
if (height < 0) height = height2;
if (NILP (posn))
{
posn = make_number (textpos);
if (STRINGP (string2))
string_info = Fcons (string2,
make_number (CHARPOS (p.string_pos)));
}
if (NILP (object))
object = object2;
}
#ifdef HAVE_WINDOW_SYSTEM
if (IMAGEP (object))
{
Lisp_Object image_map, hotspot;
if ((image_map = Fplist_get (XCDR (object), QCmap),
!NILP (image_map))
&& (hotspot = find_hot_spot (image_map, dx, dy),
CONSP (hotspot))
&& (hotspot = XCDR (hotspot), CONSP (hotspot)))
posn = XCAR (hotspot);
}
#endif
/* Object info. */
extra_info
= list3 (object,
Fcons (make_number (dx), make_number (dy)),
Fcons (make_number (width), make_number (height)));
/* String info. */
extra_info = Fcons (string_info,
Fcons (textpos < 0 ? Qnil : make_number (textpos),
Fcons (Fcons (make_number (col),
make_number (row)),
extra_info)));
}
#ifdef HAVE_WINDOW_SYSTEM
else if (f)
{
/* Return mouse pixel coordinates here. */
XSETFRAME (window_or_frame, f);
xret = XINT (x);
yret = XINT (y);
if (FRAME_LIVE_P (f)
&& FRAME_INTERNAL_BORDER_WIDTH (f) > 0
&& !NILP (get_frame_param (f, Qdrag_internal_border)))
{
enum internal_border_part part
= frame_internal_border_part (f, xret, yret);
posn = builtin_lisp_symbol (internal_border_parts[part]);
}
}
#endif
else
window_or_frame = Qnil;
return Fcons (window_or_frame,
Fcons (posn,
Fcons (Fcons (make_number (xret),
make_number (yret)),
Fcons (make_number (t),
extra_info))));
}
/* Return non-zero if F is a GUI frame that uses some toolkit-managed
menu bar. This really means that Emacs draws and manages the menu
bar as part of its normal display, and therefore can compute its
geometry. */
static bool
toolkit_menubar_in_use (struct frame *f)
{
#if defined (USE_X_TOOLKIT) || defined (USE_GTK) || defined (HAVE_NS) || defined (HAVE_NTGUI)
return !(!FRAME_WINDOW_P (f));
#else
return false;
#endif
}
/* Build the part of Lisp event which represents scroll bar state from
EV. TYPE is one of Qvertical_scroll_bar or Qhorizontal_scroll_bar. */
static Lisp_Object
make_scroll_bar_position (struct input_event *ev, Lisp_Object type)
{
return list5 (ev->frame_or_window, type, Fcons (ev->x, ev->y),
make_number (ev->timestamp),
builtin_lisp_symbol (scroll_bar_parts[ev->part]));
}
/* Given a struct input_event, build the lisp event which represents
it. If EVENT is 0, build a mouse movement event from the mouse
movement buffer, which should have a movement event in it.
Note that events must be passed to this function in the order they
are received; this function stores the location of button presses
in order to build drag events when the button is released. */
static Lisp_Object
make_lispy_event (struct input_event *event)
{
int i;
switch (event->kind)
{
/* A simple keystroke. */
case ASCII_KEYSTROKE_EVENT:
case MULTIBYTE_CHAR_KEYSTROKE_EVENT:
{
Lisp_Object lispy_c;
EMACS_INT c = event->code;
if (event->kind == ASCII_KEYSTROKE_EVENT)
{
c &= 0377;
eassert (c == event->code);
}
/* Caps-lock shouldn't affect interpretation of key chords:
Control+s should produce C-s whether caps-lock is on or
not. And Control+Shift+s should produce C-S-s whether
caps-lock is on or not. */
if (event->modifiers & ~shift_modifier)
{
/* This is a key chord: some non-shift modifier is
depressed. */
if (uppercasep (c) &&
!(event->modifiers & shift_modifier))
{
/* Got a capital letter without a shift. The caps
lock is on. Un-capitalize the letter. */
c = downcase (c);
}
else if (lowercasep (c) &&
(event->modifiers & shift_modifier))
{
/* Got a lower-case letter even though shift is
depressed. The caps lock is on. Capitalize the
letter. */
c = upcase (c);
}
}
if (event->kind == ASCII_KEYSTROKE_EVENT)
{
/* Turn ASCII characters into control characters
when proper. */
if (event->modifiers & ctrl_modifier)
{
c = make_ctrl_char (c);
event->modifiers &= ~ctrl_modifier;
}
}
/* Add in the other modifier bits. The shift key was taken care
of by the X code. */
c |= (event->modifiers
& (meta_modifier | alt_modifier
| hyper_modifier | super_modifier | ctrl_modifier));
/* Distinguish Shift-SPC from SPC. */
if ((event->code) == 040
&& event->modifiers & shift_modifier)
c |= shift_modifier;
button_down_time = 0;
XSETFASTINT (lispy_c, c);
return lispy_c;
}
#ifdef HAVE_NS
/* NS_NONKEY_EVENTs are just like NON_ASCII_KEYSTROKE_EVENTs,
except that they are non-key events (last-nonmenu-event is nil). */
case NS_NONKEY_EVENT:
#endif
/* A function key. The symbol may need to have modifier prefixes
tacked onto it. */
case NON_ASCII_KEYSTROKE_EVENT:
button_down_time = 0;
for (i = 0; i < ARRAYELTS (lispy_accent_codes); i++)
if (event->code == lispy_accent_codes[i])
return modify_event_symbol (i,
event->modifiers,
Qfunction_key, Qnil,
lispy_accent_keys, &accent_key_syms,
ARRAYELTS (lispy_accent_keys));
#if 0
#ifdef XK_kana_A
if (event->code >= 0x400 && event->code < 0x500)
return modify_event_symbol (event->code - 0x400,
event->modifiers & ~shift_modifier,
Qfunction_key, Qnil,
lispy_kana_keys, &func_key_syms,
ARRAYELTS (lispy_kana_keys));
#endif /* XK_kana_A */
#endif /* 0 */
#ifdef ISO_FUNCTION_KEY_OFFSET
if (event->code < FUNCTION_KEY_OFFSET
&& event->code >= ISO_FUNCTION_KEY_OFFSET)
return modify_event_symbol (event->code - ISO_FUNCTION_KEY_OFFSET,
event->modifiers,
Qfunction_key, Qnil,
iso_lispy_function_keys, &func_key_syms,
ARRAYELTS (iso_lispy_function_keys));
#endif
if ((FUNCTION_KEY_OFFSET <= event->code
&& (event->code
< FUNCTION_KEY_OFFSET + ARRAYELTS (lispy_function_keys)))
&& lispy_function_keys[event->code - FUNCTION_KEY_OFFSET])
return modify_event_symbol (event->code - FUNCTION_KEY_OFFSET,
event->modifiers,
Qfunction_key, Qnil,
lispy_function_keys, &func_key_syms,
ARRAYELTS (lispy_function_keys));
/* Handle system-specific or unknown keysyms.
We need to use an alist rather than a vector as the cache
since we can't make a vector long enough. */
if (NILP (KVAR (current_kboard, system_key_syms)))
kset_system_key_syms (current_kboard, Fcons (Qnil, Qnil));
return modify_event_symbol (event->code,
event->modifiers,
Qfunction_key,
KVAR (current_kboard, Vsystem_key_alist),
0, &KVAR (current_kboard, system_key_syms),
PTRDIFF_MAX);
#ifdef HAVE_NTGUI
case MULTIMEDIA_KEY_EVENT:
if (event->code < ARRAYELTS (lispy_multimedia_keys)
&& event->code > 0 && lispy_multimedia_keys[event->code])
{
return modify_event_symbol (event->code, event->modifiers,
Qfunction_key, Qnil,
lispy_multimedia_keys, &func_key_syms,
ARRAYELTS (lispy_multimedia_keys));
}
return Qnil;
#endif
/* A mouse click. Figure out where it is, decide whether it's
a press, click or drag, and build the appropriate structure. */
case MOUSE_CLICK_EVENT:
#ifdef HAVE_GPM
case GPM_CLICK_EVENT:
#endif
#ifndef USE_TOOLKIT_SCROLL_BARS
case SCROLL_BAR_CLICK_EVENT:
case HORIZONTAL_SCROLL_BAR_CLICK_EVENT:
#endif
{
int button = event->code;
bool is_double;
Lisp_Object position;
Lisp_Object *start_pos_ptr;
Lisp_Object start_pos;
position = Qnil;
/* Build the position as appropriate for this mouse click. */
if (event->kind == MOUSE_CLICK_EVENT
#ifdef HAVE_GPM
|| event->kind == GPM_CLICK_EVENT
#endif
)
{
struct frame *f = XFRAME (event->frame_or_window);
int row, column;
/* Ignore mouse events that were made on frame that
have been deleted. */
if (! FRAME_LIVE_P (f))
return Qnil;
/* EVENT->x and EVENT->y are frame-relative pixel
coordinates at this place. Under old redisplay, COLUMN
and ROW are set to frame relative glyph coordinates
which are then used to determine whether this click is
in a menu (non-toolkit version). */
if (!toolkit_menubar_in_use (f))
{
pixel_to_glyph_coords (f, XINT (event->x), XINT (event->y),
&column, &row, NULL, 1);
/* In the non-toolkit version, clicks on the menu bar
are ordinary button events in the event buffer.
Distinguish them, and invoke the menu.
(In the toolkit version, the toolkit handles the
menu bar and Emacs doesn't know about it until
after the user makes a selection.) */
if (row >= 0 && row < FRAME_MENU_BAR_LINES (f)
&& (event->modifiers & down_modifier))
{
Lisp_Object items, item;
/* Find the menu bar item under `column'. */
item = Qnil;
items = FRAME_MENU_BAR_ITEMS (f);
for (i = 0; i < ASIZE (items); i += 4)
{
Lisp_Object pos, string;
string = AREF (items, i + 1);
pos = AREF (items, i + 3);
if (NILP (string))
break;
if (column >= XINT (pos)
&& column < XINT (pos) + SCHARS (string))
{
item = AREF (items, i);
break;
}
}
/* ELisp manual 2.4b says (x y) are window
relative but code says they are
frame-relative. */
position = list4 (event->frame_or_window,
Qmenu_bar,
Fcons (event->x, event->y),
make_number (event->timestamp));
return list2 (item, position);
}
}
position = make_lispy_position (f, event->x, event->y,
event->timestamp);
}
#ifndef USE_TOOLKIT_SCROLL_BARS
else
/* It's a scrollbar click. */
position = make_scroll_bar_position (event, Qvertical_scroll_bar);
#endif /* not USE_TOOLKIT_SCROLL_BARS */
if (button >= ASIZE (button_down_location))
{
ptrdiff_t incr = button - ASIZE (button_down_location) + 1;
button_down_location = larger_vector (button_down_location,
incr, -1);
mouse_syms = larger_vector (mouse_syms, incr, -1);
}
start_pos_ptr = aref_addr (button_down_location, button);
start_pos = *start_pos_ptr;
*start_pos_ptr = Qnil;
{
/* On window-system frames, use the value of
double-click-fuzz as is. On other frames, interpret it
as a multiple of 1/8 characters. */
struct frame *f;
int fuzz;
if (WINDOWP (event->frame_or_window))
f = XFRAME (XWINDOW (event->frame_or_window)->frame);
else if (FRAMEP (event->frame_or_window))
f = XFRAME (event->frame_or_window);
else
emacs_abort ();
if (FRAME_WINDOW_P (f))
fuzz = double_click_fuzz;
else
fuzz = double_click_fuzz / 8;
is_double = (button == last_mouse_button
&& (eabs (XINT (event->x) - last_mouse_x) <= fuzz)
&& (eabs (XINT (event->y) - last_mouse_y) <= fuzz)
&& button_down_time != 0
&& (EQ (Vdouble_click_time, Qt)
|| (NATNUMP (Vdouble_click_time)
&& (event->timestamp - button_down_time
< XFASTINT (Vdouble_click_time)))));
}
last_mouse_button = button;
last_mouse_x = XINT (event->x);
last_mouse_y = XINT (event->y);
/* If this is a button press, squirrel away the location, so
we can decide later whether it was a click or a drag. */
if (event->modifiers & down_modifier)
{
if (is_double)
{
double_click_count++;
event->modifiers |= ((double_click_count > 2)
? triple_modifier
: double_modifier);
}
else
double_click_count = 1;
button_down_time = event->timestamp;
*start_pos_ptr = Fcopy_alist (position);
ignore_mouse_drag_p = 0;
}
/* Now we're releasing a button - check the co-ordinates to
see if this was a click or a drag. */
else if (event->modifiers & up_modifier)
{
/* If we did not see a down before this up, ignore the up.
Probably this happened because the down event chose a
menu item. It would be an annoyance to treat the
release of the button that chose the menu item as a
separate event. */
if (!CONSP (start_pos))
return Qnil;
event->modifiers &= ~up_modifier;
{
Lisp_Object new_down, down;
EMACS_INT xdiff = double_click_fuzz, ydiff = double_click_fuzz;
/* The third element of every position
should be the (x,y) pair. */
down = Fcar (Fcdr (Fcdr (start_pos)));
new_down = Fcar (Fcdr (Fcdr (position)));
if (CONSP (down)
&& INTEGERP (XCAR (down)) && INTEGERP (XCDR (down)))
{
xdiff = XINT (XCAR (new_down)) - XINT (XCAR (down));
ydiff = XINT (XCDR (new_down)) - XINT (XCDR (down));
}
if (ignore_mouse_drag_p)
{
event->modifiers |= click_modifier;
ignore_mouse_drag_p = 0;
}
else if (xdiff < double_click_fuzz && xdiff > - double_click_fuzz
&& ydiff < double_click_fuzz && ydiff > - double_click_fuzz
/* Maybe the mouse has moved a lot, caused scrolling, and
eventually ended up at the same screen position (but
not buffer position) in which case it is a drag, not
a click. */
/* FIXME: OTOH if the buffer position has changed
because of a timer or process filter rather than
because of mouse movement, it should be considered as
a click. But mouse-drag-region completely ignores
this case and it hasn't caused any real problem, so
it's probably OK to ignore it as well. */
&& EQ (Fcar (Fcdr (start_pos)), Fcar (Fcdr (position))))
/* Mouse hasn't moved (much). */
event->modifiers |= click_modifier;
else
{
button_down_time = 0;
event->modifiers |= drag_modifier;
}
/* Don't check is_double; treat this as multiple
if the down-event was multiple. */
if (double_click_count > 1)
event->modifiers |= ((double_click_count > 2)
? triple_modifier
: double_modifier);
}
}
else
/* Every mouse event should either have the down_modifier or
the up_modifier set. */
emacs_abort ();
{
/* Get the symbol we should use for the mouse click. */
Lisp_Object head;
head = modify_event_symbol (button,
event->modifiers,
Qmouse_click, Vlispy_mouse_stem,
NULL,
&mouse_syms,
ASIZE (mouse_syms));
if (event->modifiers & drag_modifier)
return list3 (head, start_pos, position);
else if (event->modifiers & (double_modifier | triple_modifier))
return list3 (head, position, make_number (double_click_count));
else
return list2 (head, position);
}
}
case WHEEL_EVENT:
case HORIZ_WHEEL_EVENT:
{
Lisp_Object position;
Lisp_Object head;
/* Build the position as appropriate for this mouse click. */
struct frame *f = XFRAME (event->frame_or_window);
/* Ignore wheel events that were made on frame that have been
deleted. */
if (! FRAME_LIVE_P (f))
return Qnil;
position = make_lispy_position (f, event->x, event->y,
event->timestamp);
/* Set double or triple modifiers to indicate the wheel speed. */
{
/* On window-system frames, use the value of
double-click-fuzz as is. On other frames, interpret it
as a multiple of 1/8 characters. */
struct frame *fr;
int fuzz;
int symbol_num;
bool is_double;
if (WINDOWP (event->frame_or_window))
fr = XFRAME (XWINDOW (event->frame_or_window)->frame);
else if (FRAMEP (event->frame_or_window))
fr = XFRAME (event->frame_or_window);
else
emacs_abort ();
fuzz = FRAME_WINDOW_P (fr)
? double_click_fuzz : double_click_fuzz / 8;
if (event->modifiers & up_modifier)
{
/* Emit a wheel-up event. */
event->modifiers &= ~up_modifier;
symbol_num = 0;
}
else if (event->modifiers & down_modifier)
{
/* Emit a wheel-down event. */
event->modifiers &= ~down_modifier;
symbol_num = 1;
}
else
/* Every wheel event should either have the down_modifier or
the up_modifier set. */
emacs_abort ();
if (event->kind == HORIZ_WHEEL_EVENT)
symbol_num += 2;
is_double = (last_mouse_button == - (1 + symbol_num)
&& (eabs (XINT (event->x) - last_mouse_x) <= fuzz)
&& (eabs (XINT (event->y) - last_mouse_y) <= fuzz)
&& button_down_time != 0
&& (EQ (Vdouble_click_time, Qt)
|| (NATNUMP (Vdouble_click_time)
&& (event->timestamp - button_down_time
< XFASTINT (Vdouble_click_time)))));
if (is_double)
{
double_click_count++;
event->modifiers |= ((double_click_count > 2)
? triple_modifier
: double_modifier);
}
else
{
double_click_count = 1;
event->modifiers |= click_modifier;
}
button_down_time = event->timestamp;
/* Use a negative value to distinguish wheel from mouse button. */
last_mouse_button = - (1 + symbol_num);
last_mouse_x = XINT (event->x);
last_mouse_y = XINT (event->y);
/* Get the symbol we should use for the wheel event. */
head = modify_event_symbol (symbol_num,
event->modifiers,
Qmouse_click,
Qnil,
lispy_wheel_names,
&wheel_syms,
ASIZE (wheel_syms));
}
if (event->modifiers & (double_modifier | triple_modifier))
return list3 (head, position, make_number (double_click_count));
else
return list2 (head, position);
}
#ifdef USE_TOOLKIT_SCROLL_BARS
/* We don't have down and up events if using toolkit scroll bars,
so make this always a click event. Store in the `part' of
the Lisp event a symbol which maps to the following actions:
`above_handle' page up
`below_handle' page down
`up' line up
`down' line down
`top' top of buffer
`bottom' bottom of buffer
`handle' thumb has been dragged.
`end-scroll' end of interaction with scroll bar
The incoming input_event contains in its `part' member an
index of type `enum scroll_bar_part' which we can use as an
index in scroll_bar_parts to get the appropriate symbol. */
case SCROLL_BAR_CLICK_EVENT:
{
Lisp_Object position, head;
position = make_scroll_bar_position (event, Qvertical_scroll_bar);
/* Always treat scroll bar events as clicks. */
event->modifiers |= click_modifier;
event->modifiers &= ~up_modifier;
if (event->code >= ASIZE (mouse_syms))
mouse_syms = larger_vector (mouse_syms,
event->code - ASIZE (mouse_syms) + 1,
-1);
/* Get the symbol we should use for the mouse click. */
head = modify_event_symbol (event->code,
event->modifiers,
Qmouse_click,
Vlispy_mouse_stem,
NULL, &mouse_syms,
ASIZE (mouse_syms));
return list2 (head, position);
}
case HORIZONTAL_SCROLL_BAR_CLICK_EVENT:
{
Lisp_Object position, head;
position = make_scroll_bar_position (event, Qhorizontal_scroll_bar);
/* Always treat scroll bar events as clicks. */
event->modifiers |= click_modifier;
event->modifiers &= ~up_modifier;
if (event->code >= ASIZE (mouse_syms))
mouse_syms = larger_vector (mouse_syms,
event->code - ASIZE (mouse_syms) + 1,
-1);
/* Get the symbol we should use for the mouse click. */
head = modify_event_symbol (event->code,
event->modifiers,
Qmouse_click,
Vlispy_mouse_stem,
NULL, &mouse_syms,
ASIZE (mouse_syms));
return list2 (head, position);
}
#endif /* USE_TOOLKIT_SCROLL_BARS */
case DRAG_N_DROP_EVENT:
{
struct frame *f;
Lisp_Object head, position;
Lisp_Object files;
f = XFRAME (event->frame_or_window);
files = event->arg;
/* Ignore mouse events that were made on frames that
have been deleted. */
if (! FRAME_LIVE_P (f))
return Qnil;
position = make_lispy_position (f, event->x, event->y,
event->timestamp);
head = modify_event_symbol (0, event->modifiers,
Qdrag_n_drop, Qnil,
lispy_drag_n_drop_names,
&drag_n_drop_syms, 1);
return list3 (head, position, files);
}
#if defined (USE_X_TOOLKIT) || defined (HAVE_NTGUI) \
|| defined (HAVE_NS) || defined (USE_GTK)
case MENU_BAR_EVENT:
if (EQ (event->arg, event->frame_or_window))
/* This is the prefix key. We translate this to
`(menu_bar)' because the code in keyboard.c for menu
events, which we use, relies on this. */
return list1 (Qmenu_bar);
return event->arg;
#endif
case SELECT_WINDOW_EVENT:
/* Make an event (select-window (WINDOW)). */
return list2 (Qselect_window, list1 (event->frame_or_window));
case TOOL_BAR_EVENT:
if (EQ (event->arg, event->frame_or_window))
/* This is the prefix key. We translate this to
`(tool_bar)' because the code in keyboard.c for tool bar
events, which we use, relies on this. */
return list1 (Qtool_bar);
else if (SYMBOLP (event->arg))
return apply_modifiers (event->modifiers, event->arg);
return event->arg;
case USER_SIGNAL_EVENT:
/* A user signal. */
{
char *name = find_user_signal_name (event->code);
if (!name)
emacs_abort ();
return intern (name);
}
case SAVE_SESSION_EVENT:
return Qsave_session;
#ifdef HAVE_DBUS
case DBUS_EVENT:
{
return Fcons (Qdbus_event, event->arg);
}
#endif /* HAVE_DBUS */
#ifdef HAVE_XWIDGETS
case XWIDGET_EVENT:
{
return Fcons (Qxwidget_event, event->arg);
}
#endif
#if defined HAVE_INOTIFY || defined HAVE_KQUEUE || defined HAVE_GFILENOTIFY
case FILE_NOTIFY_EVENT:
{
return Fcons (Qfile_notify, event->arg);
}
#endif /* HAVE_INOTIFY || HAVE_KQUEUE || HAVE_GFILENOTIFY */
case CONFIG_CHANGED_EVENT:
return list3 (Qconfig_changed_event,
event->arg, event->frame_or_window);
/* The 'kind' field of the event is something we don't recognize. */
default:
emacs_abort ();
}
}
static Lisp_Object
make_lispy_movement (struct frame *frame, Lisp_Object bar_window, enum scroll_bar_part part,
Lisp_Object x, Lisp_Object y, Time t)
{
/* Is it a scroll bar movement? */
if (frame && ! NILP (bar_window))
{
Lisp_Object part_sym;
part_sym = builtin_lisp_symbol (scroll_bar_parts[part]);
return list2 (Qscroll_bar_movement,
list5 (bar_window,
Qvertical_scroll_bar,
Fcons (x, y),
make_number (t),
part_sym));
}
/* Or is it an ordinary mouse movement? */
else
{
Lisp_Object position;
position = make_lispy_position (frame, x, y, t);
return list2 (Qmouse_movement, position);
}
}
/* Construct a switch frame event. */
static Lisp_Object
make_lispy_switch_frame (Lisp_Object frame)
{
return list2 (Qswitch_frame, frame);
}
static Lisp_Object
make_lispy_focus_in (Lisp_Object frame)
{
return list2 (Qfocus_in, frame);
}
#ifdef HAVE_WINDOW_SYSTEM
static Lisp_Object
make_lispy_focus_out (Lisp_Object frame)
{
return list2 (Qfocus_out, frame);
}
#endif /* HAVE_WINDOW_SYSTEM */
/* Manipulating modifiers. */
/* Parse the name of SYMBOL, and return the set of modifiers it contains.
If MODIFIER_END is non-zero, set *MODIFIER_END to the position in
SYMBOL's name of the end of the modifiers; the string from this
position is the unmodified symbol name.
This doesn't use any caches. */
static int
parse_modifiers_uncached (Lisp_Object symbol, ptrdiff_t *modifier_end)
{
Lisp_Object name;
ptrdiff_t i;
int modifiers;
CHECK_SYMBOL (symbol);
modifiers = 0;
name = SYMBOL_NAME (symbol);
for (i = 0; i < SBYTES (name) - 1; )
{
ptrdiff_t this_mod_end = 0;
int this_mod = 0;
/* See if the name continues with a modifier word.
Check that the word appears, but don't check what follows it.
Set this_mod and this_mod_end to record what we find. */
switch (SREF (name, i))
{
#define SINGLE_LETTER_MOD(BIT) \
(this_mod_end = i + 1, this_mod = BIT)
case 'A':
SINGLE_LETTER_MOD (alt_modifier);
break;
case 'C':
SINGLE_LETTER_MOD (ctrl_modifier);
break;
case 'H':
SINGLE_LETTER_MOD (hyper_modifier);
break;
case 'M':
SINGLE_LETTER_MOD (meta_modifier);
break;
case 'S':
SINGLE_LETTER_MOD (shift_modifier);
break;
case 's':
SINGLE_LETTER_MOD (super_modifier);
break;
#undef SINGLE_LETTER_MOD
#define MULTI_LETTER_MOD(BIT, NAME, LEN) \
if (i + LEN + 1 <= SBYTES (name) \
&& ! memcmp (SDATA (name) + i, NAME, LEN)) \
{ \
this_mod_end = i + LEN; \
this_mod = BIT; \
}
case 'd':
MULTI_LETTER_MOD (drag_modifier, "drag", 4);
MULTI_LETTER_MOD (down_modifier, "down", 4);
MULTI_LETTER_MOD (double_modifier, "double", 6);
break;
case 't':
MULTI_LETTER_MOD (triple_modifier, "triple", 6);
break;
case 'u':
MULTI_LETTER_MOD (up_modifier, "up", 2);
break;
#undef MULTI_LETTER_MOD
}
/* If we found no modifier, stop looking for them. */
if (this_mod_end == 0)
break;
/* Check there is a dash after the modifier, so that it
really is a modifier. */
if (this_mod_end >= SBYTES (name)
|| SREF (name, this_mod_end) != '-')
break;
/* This modifier is real; look for another. */
modifiers |= this_mod;
i = this_mod_end + 1;
}
/* Should we include the `click' modifier? */
if (! (modifiers & (down_modifier | drag_modifier
| double_modifier | triple_modifier))
&& i + 7 == SBYTES (name)
&& memcmp (SDATA (name) + i, "mouse-", 6) == 0
&& ('0' <= SREF (name, i + 6) && SREF (name, i + 6) <= '9'))
modifiers |= click_modifier;
if (! (modifiers & (double_modifier | triple_modifier))
&& i + 6 < SBYTES (name)
&& memcmp (SDATA (name) + i, "wheel-", 6) == 0)
modifiers |= click_modifier;
if (modifier_end)
*modifier_end = i;
return modifiers;
}
/* Return a symbol whose name is the modifier prefixes for MODIFIERS
prepended to the string BASE[0..BASE_LEN-1].
This doesn't use any caches. */
static Lisp_Object
apply_modifiers_uncached (int modifiers, char *base, int base_len, int base_len_byte)
{
/* Since BASE could contain nulls, we can't use intern here; we have
to use Fintern, which expects a genuine Lisp_String, and keeps a
reference to it. */
char new_mods[sizeof "A-C-H-M-S-s-up-down-drag-double-triple-"];
int mod_len;
{
char *p = new_mods;
/* Mouse events should not exhibit the `up' modifier once they
leave the event queue only accessible to C code; `up' will
always be turned into a click or drag event before being
presented to lisp code. But since lisp events can be
synthesized bypassing the event queue and pushed into
`unread-command-events' or its companions, it's better to just
deal with unexpected modifier combinations. */
if (modifiers & alt_modifier) { *p++ = 'A'; *p++ = '-'; }
if (modifiers & ctrl_modifier) { *p++ = 'C'; *p++ = '-'; }
if (modifiers & hyper_modifier) { *p++ = 'H'; *p++ = '-'; }
if (modifiers & meta_modifier) { *p++ = 'M'; *p++ = '-'; }
if (modifiers & shift_modifier) { *p++ = 'S'; *p++ = '-'; }
if (modifiers & super_modifier) { *p++ = 's'; *p++ = '-'; }
if (modifiers & double_modifier) p = stpcpy (p, "double-");
if (modifiers & triple_modifier) p = stpcpy (p, "triple-");
if (modifiers & up_modifier) p = stpcpy (p, "up-");
if (modifiers & down_modifier) p = stpcpy (p, "down-");
if (modifiers & drag_modifier) p = stpcpy (p, "drag-");
/* The click modifier is denoted by the absence of other modifiers. */
*p = '\0';
mod_len = p - new_mods;
}
{
Lisp_Object new_name;
new_name = make_uninit_multibyte_string (mod_len + base_len,
mod_len + base_len_byte);
memcpy (SDATA (new_name), new_mods, mod_len);
memcpy (SDATA (new_name) + mod_len, base, base_len_byte);
return Fintern (new_name, Qnil);
}
}
static const char *const modifier_names[] =
{
"up", "down", "drag", "click", "double", "triple", 0, 0,
0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
0, 0, "alt", "super", "hyper", "shift", "control", "meta"
};
#define NUM_MOD_NAMES ARRAYELTS (modifier_names)
static Lisp_Object modifier_symbols;
/* Return the list of modifier symbols corresponding to the mask MODIFIERS. */
static Lisp_Object
lispy_modifier_list (int modifiers)
{
Lisp_Object modifier_list;
int i;
modifier_list = Qnil;
for (i = 0; (1<<i) <= modifiers && i < NUM_MOD_NAMES; i++)
if (modifiers & (1<<i))
modifier_list = Fcons (AREF (modifier_symbols, i),
modifier_list);
return modifier_list;
}
/* Parse the modifiers on SYMBOL, and return a list like (UNMODIFIED MASK),
where UNMODIFIED is the unmodified form of SYMBOL,
MASK is the set of modifiers present in SYMBOL's name.
This is similar to parse_modifiers_uncached, but uses the cache in
SYMBOL's Qevent_symbol_element_mask property, and maintains the
Qevent_symbol_elements property. */
#define KEY_TO_CHAR(k) (XINT (k) & ((1 << CHARACTERBITS) - 1))
Lisp_Object
parse_modifiers (Lisp_Object symbol)
{
Lisp_Object elements;
if (INTEGERP (symbol))
return list2i (KEY_TO_CHAR (symbol), XINT (symbol) & CHAR_MODIFIER_MASK);
else if (!SYMBOLP (symbol))
return Qnil;
elements = Fget (symbol, Qevent_symbol_element_mask);
if (CONSP (elements))
return elements;
else
{
ptrdiff_t end;
int modifiers = parse_modifiers_uncached (symbol, &end);
Lisp_Object unmodified;
Lisp_Object mask;
unmodified = Fintern (make_string (SSDATA (SYMBOL_NAME (symbol)) + end,
SBYTES (SYMBOL_NAME (symbol)) - end),
Qnil);
if (modifiers & ~INTMASK)
emacs_abort ();
XSETFASTINT (mask, modifiers);
elements = list2 (unmodified, mask);
/* Cache the parsing results on SYMBOL. */
Fput (symbol, Qevent_symbol_element_mask,
elements);
Fput (symbol, Qevent_symbol_elements,
Fcons (unmodified, lispy_modifier_list (modifiers)));
/* Since we know that SYMBOL is modifiers applied to unmodified,
it would be nice to put that in unmodified's cache.
But we can't, since we're not sure that parse_modifiers is
canonical. */
return elements;
}
}
DEFUN ("internal-event-symbol-parse-modifiers", Fevent_symbol_parse_modifiers,
Sevent_symbol_parse_modifiers, 1, 1, 0,
doc: /* Parse the event symbol. For internal use. */)
(Lisp_Object symbol)
{
/* Fill the cache if needed. */
parse_modifiers (symbol);
/* Ignore the result (which is stored on Qevent_symbol_element_mask)
and use the Lispier representation stored on Qevent_symbol_elements
instead. */
return Fget (symbol, Qevent_symbol_elements);
}
/* Apply the modifiers MODIFIERS to the symbol BASE.
BASE must be unmodified.
This is like apply_modifiers_uncached, but uses BASE's
Qmodifier_cache property, if present.
apply_modifiers copies the value of BASE's Qevent_kind property to
the modified symbol. */
static Lisp_Object
apply_modifiers (int modifiers, Lisp_Object base)
{
Lisp_Object cache, idx, entry, new_symbol;
/* Mask out upper bits. We don't know where this value's been. */
modifiers &= INTMASK;
if (INTEGERP (base))
return make_number (XINT (base) | modifiers);
/* The click modifier never figures into cache indices. */
cache = Fget (base, Qmodifier_cache);
XSETFASTINT (idx, (modifiers & ~click_modifier));
entry = assq_no_quit (idx, cache);
if (CONSP (entry))
new_symbol = XCDR (entry);
else
{
/* We have to create the symbol ourselves. */
new_symbol = apply_modifiers_uncached (modifiers,
SSDATA (SYMBOL_NAME (base)),
SCHARS (SYMBOL_NAME (base)),
SBYTES (SYMBOL_NAME (base)));
/* Add the new symbol to the base's cache. */
entry = Fcons (idx, new_symbol);
Fput (base, Qmodifier_cache, Fcons (entry, cache));
/* We have the parsing info now for free, so we could add it to
the caches:
XSETFASTINT (idx, modifiers);
Fput (new_symbol, Qevent_symbol_element_mask,
list2 (base, idx));
Fput (new_symbol, Qevent_symbol_elements,
Fcons (base, lispy_modifier_list (modifiers)));
Sadly, this is only correct if `base' is indeed a base event,
which is not necessarily the case. -stef */
}
/* Make sure this symbol is of the same kind as BASE.
You'd think we could just set this once and for all when we
intern the symbol above, but reorder_modifiers may call us when
BASE's property isn't set right; we can't assume that just
because it has a Qmodifier_cache property it must have its
Qevent_kind set right as well. */
if (NILP (Fget (new_symbol, Qevent_kind)))
{
Lisp_Object kind;
kind = Fget (base, Qevent_kind);
if (! NILP (kind))
Fput (new_symbol, Qevent_kind, kind);
}
return new_symbol;
}
/* Given a symbol whose name begins with modifiers ("C-", "M-", etc),
return a symbol with the modifiers placed in the canonical order.
Canonical order is alphabetical, except for down and drag, which
always come last. The 'click' modifier is never written out.
Fdefine_key calls this to make sure that (for example) C-M-foo
and M-C-foo end up being equivalent in the keymap. */
Lisp_Object
reorder_modifiers (Lisp_Object symbol)
{
/* It's hopefully okay to write the code this way, since everything
will soon be in caches, and no consing will be done at all. */
Lisp_Object parsed;
parsed = parse_modifiers (symbol);
return apply_modifiers (XFASTINT (XCAR (XCDR (parsed))),
XCAR (parsed));
}
/* For handling events, we often want to produce a symbol whose name
is a series of modifier key prefixes ("M-", "C-", etcetera) attached
to some base, like the name of a function key or mouse button.
modify_event_symbol produces symbols of this sort.
NAME_TABLE should point to an array of strings, such that NAME_TABLE[i]
is the name of the i'th symbol. TABLE_SIZE is the number of elements
in the table.
Alternatively, NAME_ALIST_OR_STEM is either an alist mapping codes
into symbol names, or a string specifying a name stem used to
construct a symbol name or the form `STEM-N', where N is the decimal
representation of SYMBOL_NUM. NAME_ALIST_OR_STEM is used if it is
non-nil; otherwise NAME_TABLE is used.
SYMBOL_TABLE should be a pointer to a Lisp_Object whose value will
persist between calls to modify_event_symbol that it can use to
store a cache of the symbols it's generated for this NAME_TABLE
before. The object stored there may be a vector or an alist.
SYMBOL_NUM is the number of the base name we want from NAME_TABLE.
MODIFIERS is a set of modifier bits (as given in struct input_events)
whose prefixes should be applied to the symbol name.
SYMBOL_KIND is the value to be placed in the event_kind property of
the returned symbol.
The symbols we create are supposed to have an
`event-symbol-elements' property, which lists the modifiers present
in the symbol's name. */
static Lisp_Object
modify_event_symbol (ptrdiff_t symbol_num, int modifiers, Lisp_Object symbol_kind,
Lisp_Object name_alist_or_stem, const char *const *name_table,
Lisp_Object *symbol_table, ptrdiff_t table_size)
{
Lisp_Object value;
Lisp_Object symbol_int;
/* Get rid of the "vendor-specific" bit here. */
XSETINT (symbol_int, symbol_num & 0xffffff);
/* Is this a request for a valid symbol? */
if (symbol_num < 0 || symbol_num >= table_size)
return Qnil;
if (CONSP (*symbol_table))
value = Fcdr (assq_no_quit (symbol_int, *symbol_table));
/* If *symbol_table doesn't seem to be initialized properly, fix that.
*symbol_table should be a lisp vector TABLE_SIZE elements long,
where the Nth element is the symbol for NAME_TABLE[N], or nil if
we've never used that symbol before. */
else
{
if (! VECTORP (*symbol_table)
|| ASIZE (*symbol_table) != table_size)
{
Lisp_Object size;
XSETFASTINT (size, table_size);
*symbol_table = Fmake_vector (size, Qnil);
}
value = AREF (*symbol_table, symbol_num);
}
/* Have we already used this symbol before? */
if (NILP (value))
{
/* No; let's create it. */
if (CONSP (name_alist_or_stem))
value = Fcdr_safe (Fassq (symbol_int, name_alist_or_stem));
else if (STRINGP (name_alist_or_stem))
{
char *buf;
ptrdiff_t len = (SBYTES (name_alist_or_stem)
+ sizeof "-" + INT_STRLEN_BOUND (EMACS_INT));
USE_SAFE_ALLOCA;
buf = SAFE_ALLOCA (len);
esprintf (buf, "%s-%"pI"d", SDATA (name_alist_or_stem),
XINT (symbol_int) + 1);
value = intern (buf);
SAFE_FREE ();
}
else if (name_table != 0 && name_table[symbol_num])
value = intern (name_table[symbol_num]);
#ifdef HAVE_WINDOW_SYSTEM
if (NILP (value))
{
char *name = x_get_keysym_name (symbol_num);
if (name)
value = intern (name);
}
#endif
if (NILP (value))
{
char buf[sizeof "key-" + INT_STRLEN_BOUND (EMACS_INT)];
sprintf (buf, "key-%"pD"d", symbol_num);
value = intern (buf);
}
if (CONSP (*symbol_table))
*symbol_table = Fcons (Fcons (symbol_int, value), *symbol_table);
else
ASET (*symbol_table, symbol_num, value);
/* Fill in the cache entries for this symbol; this also
builds the Qevent_symbol_elements property, which the user
cares about. */
apply_modifiers (modifiers & click_modifier, value);
Fput (value, Qevent_kind, symbol_kind);
}
/* Apply modifiers to that symbol. */
return apply_modifiers (modifiers, value);
}
\f
/* Convert a list that represents an event type,
such as (ctrl meta backspace), into the usual representation of that
event type as a number or a symbol. */
DEFUN ("event-convert-list", Fevent_convert_list, Sevent_convert_list, 1, 1, 0,
doc: /* Convert the event description list EVENT-DESC to an event type.
EVENT-DESC should contain one base event type (a character or symbol)
and zero or more modifier names (control, meta, hyper, super, shift, alt,
drag, down, double or triple). The base must be last.
The return value is an event type (a character or symbol) which
has the same base event type and all the specified modifiers. */)
(Lisp_Object event_desc)
{
Lisp_Object base;
int modifiers = 0;
Lisp_Object rest;
base = Qnil;
rest = event_desc;
while (CONSP (rest))
{
Lisp_Object elt;
int this = 0;
elt = XCAR (rest);
rest = XCDR (rest);
/* Given a symbol, see if it is a modifier name. */
if (SYMBOLP (elt) && CONSP (rest))
this = parse_solitary_modifier (elt);
if (this != 0)
modifiers |= this;
else if (!NILP (base))
error ("Two bases given in one event");
else
base = elt;
}
/* Let the symbol A refer to the character A. */
if (SYMBOLP (base) && SCHARS (SYMBOL_NAME (base)) == 1)
XSETINT (base, SREF (SYMBOL_NAME (base), 0));
if (INTEGERP (base))
{
/* Turn (shift a) into A. */
if ((modifiers & shift_modifier) != 0
&& (XINT (base) >= 'a' && XINT (base) <= 'z'))
{
XSETINT (base, XINT (base) - ('a' - 'A'));
modifiers &= ~shift_modifier;
}
/* Turn (control a) into C-a. */
if (modifiers & ctrl_modifier)
return make_number ((modifiers & ~ctrl_modifier)
| make_ctrl_char (XINT (base)));
else
return make_number (modifiers | XINT (base));
}
else if (SYMBOLP (base))
return apply_modifiers (modifiers, base);
else
error ("Invalid base event");
}
/* Try to recognize SYMBOL as a modifier name.
Return the modifier flag bit, or 0 if not recognized. */
int
parse_solitary_modifier (Lisp_Object symbol)
{
Lisp_Object name;
if (!SYMBOLP (symbol))
return 0;
name = SYMBOL_NAME (symbol);
switch (SREF (name, 0))
{
#define SINGLE_LETTER_MOD(BIT) \
if (SBYTES (name) == 1) \
return BIT;
#define MULTI_LETTER_MOD(BIT, NAME, LEN) \
if (LEN == SBYTES (name) \
&& ! memcmp (SDATA (name), NAME, LEN)) \
return BIT;
case 'A':
SINGLE_LETTER_MOD (alt_modifier);
break;
case 'a':
MULTI_LETTER_MOD (alt_modifier, "alt", 3);
break;
case 'C':
SINGLE_LETTER_MOD (ctrl_modifier);
break;
case 'c':
MULTI_LETTER_MOD (ctrl_modifier, "ctrl", 4);
MULTI_LETTER_MOD (ctrl_modifier, "control", 7);
break;
case 'H':
SINGLE_LETTER_MOD (hyper_modifier);
break;
case 'h':
MULTI_LETTER_MOD (hyper_modifier, "hyper", 5);
break;
case 'M':
SINGLE_LETTER_MOD (meta_modifier);
break;
case 'm':
MULTI_LETTER_MOD (meta_modifier, "meta", 4);
break;
case 'S':
SINGLE_LETTER_MOD (shift_modifier);
break;
case 's':
MULTI_LETTER_MOD (shift_modifier, "shift", 5);
MULTI_LETTER_MOD (super_modifier, "super", 5);
SINGLE_LETTER_MOD (super_modifier);
break;
case 'd':
MULTI_LETTER_MOD (drag_modifier, "drag", 4);
MULTI_LETTER_MOD (down_modifier, "down", 4);
MULTI_LETTER_MOD (double_modifier, "double", 6);
break;
case 't':
MULTI_LETTER_MOD (triple_modifier, "triple", 6);
break;
case 'u':
MULTI_LETTER_MOD (up_modifier, "up", 2);
break;
#undef SINGLE_LETTER_MOD
#undef MULTI_LETTER_MOD
}
return 0;
}
/* Return true if EVENT is a list whose elements are all integers or symbols.
Such a list is not valid as an event,
but it can be a Lucid-style event type list. */
bool
lucid_event_type_list_p (Lisp_Object object)
{
Lisp_Object tail;
if (! CONSP (object))
return 0;
if (EQ (XCAR (object), Qhelp_echo)
|| EQ (XCAR (object), Qvertical_line)
|| EQ (XCAR (object), Qmode_line)
|| EQ (XCAR (object), Qheader_line))
return 0;
for (tail = object; CONSP (tail); tail = XCDR (tail))
{
Lisp_Object elt;
elt = XCAR (tail);
if (! (INTEGERP (elt) || SYMBOLP (elt)))
return 0;
}
return NILP (tail);
}
\f
/* Return true if terminal input chars are available.
Also, store the return value into INPUT_PENDING.
Serves the purpose of ioctl (0, FIONREAD, ...)
but works even if FIONREAD does not exist.
(In fact, this may actually read some input.)
If READABLE_EVENTS_DO_TIMERS_NOW is set in FLAGS, actually run
timer events that are ripe.
If READABLE_EVENTS_FILTER_EVENTS is set in FLAGS, ignore internal
events (FOCUS_IN_EVENT).
If READABLE_EVENTS_IGNORE_SQUEEZABLES is set in FLAGS, ignore mouse
movements and toolkit scroll bar thumb drags. */
static bool
get_input_pending (int flags)
{
/* First of all, have we already counted some input? */
input_pending = (!NILP (Vquit_flag) || readable_events (flags));
/* If input is being read as it arrives, and we have none, there is none. */
if (!input_pending && (!interrupt_input || interrupts_deferred))
{
/* Try to read some input and see how much we get. */
gobble_input ();
input_pending = (!NILP (Vquit_flag) || readable_events (flags));
}
return input_pending;
}
/* Put a BUFFER_SWITCH_EVENT in the buffer
so that read_key_sequence will notice the new current buffer. */
void
record_asynch_buffer_change (void)
{
/* We don't need a buffer-switch event unless Emacs is waiting for input.
The purpose of the event is to make read_key_sequence look up the
keymaps again. If we aren't in read_key_sequence, we don't need one,
and the event could cause trouble by messing up (input-pending-p).
Note: Fwaiting_for_user_input_p always returns nil when async
subprocesses aren't supported. */
if (!NILP (Fwaiting_for_user_input_p ()))
{
struct input_event event;
EVENT_INIT (event);
event.kind = BUFFER_SWITCH_EVENT;
event.frame_or_window = Qnil;
event.arg = Qnil;
/* Make sure no interrupt happens while storing the event. */
#ifdef USABLE_SIGIO
if (interrupt_input)
kbd_buffer_store_event (&event);
else
#endif
{
stop_polling ();
kbd_buffer_store_event (&event);
start_polling ();
}
}
}
/* Read any terminal input already buffered up by the system
into the kbd_buffer, but do not wait.
Return the number of keyboard chars read, or -1 meaning
this is a bad time to try to read input. */
int
gobble_input (void)
{
int nread = 0;
bool err = false;
struct terminal *t;
/* Store pending user signal events, if any. */
store_user_signal_events ();
/* Loop through the available terminals, and call their input hooks. */
t = terminal_list;
while (t)
{
struct terminal *next = t->next_terminal;
if (t->read_socket_hook)
{
int nr;
struct input_event hold_quit;
if (input_blocked_p ())
{
pending_signals = true;
break;
}
EVENT_INIT (hold_quit);
hold_quit.kind = NO_EVENT;
/* No need for FIONREAD or fcntl; just say don't wait. */
while ((nr = (*t->read_socket_hook) (t, &hold_quit)) > 0)
nread += nr;
if (nr == -1) /* Not OK to read input now. */
{
err = true;
}
else if (nr == -2) /* Non-transient error. */
{
/* The terminal device terminated; it should be closed. */
/* Kill Emacs if this was our last terminal. */
if (!terminal_list->next_terminal)
/* Formerly simply reported no input, but that
sometimes led to a failure of Emacs to terminate.
SIGHUP seems appropriate if we can't reach the
terminal. */
/* ??? Is it really right to send the signal just to
this process rather than to the whole process
group? Perhaps on systems with FIONREAD Emacs is
alone in its group. */
terminate_due_to_signal (SIGHUP, 10);
/* XXX Is calling delete_terminal safe here? It calls delete_frame. */
{
Lisp_Object tmp;
XSETTERMINAL (tmp, t);
Fdelete_terminal (tmp, Qnoelisp);
}
}
/* If there was no error, make sure the pointer
is visible for all frames on this terminal. */
if (nr >= 0)
{
Lisp_Object tail, frame;
FOR_EACH_FRAME (tail, frame)
{
struct frame *f = XFRAME (frame);
if (FRAME_TERMINAL (f) == t)
frame_make_pointer_visible (f);
}
}
if (hold_quit.kind != NO_EVENT)
kbd_buffer_store_event (&hold_quit);
}
t = next;
}
if (err && !nread)
nread = -1;
return nread;
}
/* This is the tty way of reading available input.
Note that each terminal device has its own `struct terminal' object,
and so this function is called once for each individual termcap
terminal. The first parameter indicates which terminal to read from. */
int
tty_read_avail_input (struct terminal *terminal,
struct input_event *hold_quit)
{
/* Using KBD_BUFFER_SIZE - 1 here avoids reading more than
the kbd_buffer can really hold. That may prevent loss
of characters on some systems when input is stuffed at us. */
unsigned char cbuf[KBD_BUFFER_SIZE - 1];
#ifndef WINDOWSNT
int n_to_read;
#endif
int i;
struct tty_display_info *tty = terminal->display_info.tty;
int nread = 0;
#ifdef subprocesses
int buffer_free = KBD_BUFFER_SIZE - kbd_buffer_nr_stored () - 1;
if (kbd_on_hold_p () || buffer_free <= 0)
return 0;
#endif /* subprocesses */
if (!terminal->name) /* Don't read from a dead terminal. */
return 0;
if (terminal->type != output_termcap
&& terminal->type != output_msdos_raw)
emacs_abort ();
/* XXX I think the following code should be moved to separate hook
functions in system-dependent files. */
#ifdef WINDOWSNT
/* FIXME: AFAIK, tty_read_avail_input is not used under w32 since the non-GUI
code sets read_socket_hook to w32_console_read_socket instead! */
return 0;
#else /* not WINDOWSNT */
if (! tty->term_initted) /* In case we get called during bootstrap. */
return 0;
if (! tty->input)
return 0; /* The terminal is suspended. */
#ifdef MSDOS
n_to_read = dos_keysns ();
if (n_to_read == 0)
return 0;
cbuf[0] = dos_keyread ();
nread = 1;
#else /* not MSDOS */
#ifdef HAVE_GPM
if (gpm_tty == tty)
{
Gpm_Event event;
struct input_event gpm_hold_quit;
int gpm, fd = gpm_fd;
EVENT_INIT (gpm_hold_quit);
gpm_hold_quit.kind = NO_EVENT;
/* gpm==1 if event received.
gpm==0 if the GPM daemon has closed the connection, in which case
Gpm_GetEvent closes gpm_fd and clears it to -1, which is why
we save it in `fd' so close_gpm can remove it from the
select masks.
gpm==-1 if a protocol error or EWOULDBLOCK; the latter is normal. */
while (gpm = Gpm_GetEvent (&event), gpm == 1) {
nread += handle_one_term_event (tty, &event, &gpm_hold_quit);
}
if (gpm == 0)
/* Presumably the GPM daemon has closed the connection. */
close_gpm (fd);
if (gpm_hold_quit.kind != NO_EVENT)
kbd_buffer_store_event (&gpm_hold_quit);
if (nread)
return nread;
}
#endif /* HAVE_GPM */
/* Determine how many characters we should *try* to read. */
#ifdef USABLE_FIONREAD
/* Find out how much input is available. */
if (ioctl (fileno (tty->input), FIONREAD, &n_to_read) < 0)
{
if (! noninteractive)
return -2; /* Close this terminal. */
else
n_to_read = 0;
}
if (n_to_read == 0)
return 0;
if (n_to_read > sizeof cbuf)
n_to_read = sizeof cbuf;
#elif defined USG || defined CYGWIN
/* Read some input if available, but don't wait. */
n_to_read = sizeof cbuf;
fcntl (fileno (tty->input), F_SETFL, O_NONBLOCK);
#else
# error "Cannot read without possibly delaying"
#endif
#ifdef subprocesses
/* Don't read more than we can store. */
if (n_to_read > buffer_free)
n_to_read = buffer_free;
#endif /* subprocesses */
/* Now read; for one reason or another, this will not block.
NREAD is set to the number of chars read. */
nread = emacs_read (fileno (tty->input), (char *) cbuf, n_to_read);
/* POSIX infers that processes which are not in the session leader's
process group won't get SIGHUPs at logout time. BSDI adheres to
this part standard and returns -1 from read (0) with errno==EIO
when the control tty is taken away.
Jeffrey Honig <jch@bsdi.com> says this is generally safe. */
if (nread == -1 && errno == EIO)
return -2; /* Close this terminal. */
#if defined AIX && defined _BSD
/* The kernel sometimes fails to deliver SIGHUP for ptys.
This looks incorrect, but it isn't, because _BSD causes
O_NDELAY to be defined in fcntl.h as O_NONBLOCK,
and that causes a value other than 0 when there is no input. */
if (nread == 0)
return -2; /* Close this terminal. */
#endif
#ifndef USABLE_FIONREAD
#if defined (USG) || defined (CYGWIN)
fcntl (fileno (tty->input), F_SETFL, 0);
#endif /* USG or CYGWIN */
#endif /* no FIONREAD */
if (nread <= 0)
return nread;
#endif /* not MSDOS */
#endif /* not WINDOWSNT */
for (i = 0; i < nread; i++)
{
struct input_event buf;
EVENT_INIT (buf);
buf.kind = ASCII_KEYSTROKE_EVENT;
buf.modifiers = 0;
if (tty->meta_key == 1 && (cbuf[i] & 0x80))
buf.modifiers = meta_modifier;
if (tty->meta_key != 2)
cbuf[i] &= ~0x80;
buf.code = cbuf[i];
/* Set the frame corresponding to the active tty. Note that the
value of selected_frame is not reliable here, redisplay tends
to temporarily change it. */
buf.frame_or_window = tty->top_frame;
buf.arg = Qnil;
kbd_buffer_store_event (&buf);
/* Don't look at input that follows a C-g too closely.
This reduces lossage due to autorepeat on C-g. */
if (buf.kind == ASCII_KEYSTROKE_EVENT
&& buf.code == quit_char)
break;
}
return nread;
}
\f
static void
handle_async_input (void)
{
#ifdef USABLE_SIGIO
while (1)
{
int nread = gobble_input ();
/* -1 means it's not ok to read the input now.
UNBLOCK_INPUT will read it later; now, avoid infinite loop.
0 means there was no keyboard input available. */
if (nread <= 0)
break;
}
#endif
}
void
process_pending_signals (void)
{
pending_signals = false;
handle_async_input ();
do_pending_atimers ();
}
/* Undo any number of BLOCK_INPUT calls down to level LEVEL,
and reinvoke any pending signal if the level is now 0 and
a fatal error is not already in progress. */
void
unblock_input_to (int level)
{
interrupt_input_blocked = level;
if (level == 0)
{
if (pending_signals && !fatal_error_in_progress)
process_pending_signals ();
}
else if (level < 0)
emacs_abort ();
}
/* End critical section.
If doing signal-driven input, and a signal came in when input was
blocked, reinvoke the signal handler now to deal with it.
It will also process queued input, if it was not read before.
When a longer code sequence does not use block/unblock input
at all, the whole input gathered up to the next call to
unblock_input will be processed inside that call. */
void
unblock_input (void)
{
unblock_input_to (interrupt_input_blocked - 1);
}
/* Undo any number of BLOCK_INPUT calls,
and also reinvoke any pending signal. */
void
totally_unblock_input (void)
{
unblock_input_to (0);
}
#ifdef USABLE_SIGIO
void
handle_input_available_signal (int sig)
{
pending_signals = true;
if (input_available_clear_time)
*input_available_clear_time = make_timespec (0, 0);
}
static void
deliver_input_available_signal (int sig)
{
deliver_process_signal (sig, handle_input_available_signal);
}
#endif /* USABLE_SIGIO */
\f
/* User signal events. */
struct user_signal_info
{
/* Signal number. */
int sig;
/* Name of the signal. */
char *name;
/* Number of pending signals. */
int npending;
struct user_signal_info *next;
};
/* List of user signals. */
static struct user_signal_info *user_signals = NULL;
void
add_user_signal (int sig, const char *name)
{
struct sigaction action;
struct user_signal_info *p;
for (p = user_signals; p; p = p->next)
if (p->sig == sig)
/* Already added. */
return;
p = xmalloc (sizeof *p);
p->sig = sig;
p->name = xstrdup (name);
p->npending = 0;
p->next = user_signals;
user_signals = p;
emacs_sigaction_init (&action, deliver_user_signal);
sigaction (sig, &action, 0);
}
static void
handle_user_signal (int sig)
{
struct user_signal_info *p;
const char *special_event_name = NULL;
if (SYMBOLP (Vdebug_on_event))
special_event_name = SSDATA (SYMBOL_NAME (Vdebug_on_event));
for (p = user_signals; p; p = p->next)
if (p->sig == sig)
{
if (special_event_name
&& strcmp (special_event_name, p->name) == 0)
{
/* Enter the debugger in many ways. */
debug_on_next_call = true;
debug_on_quit = true;
Vquit_flag = Qt;
Vinhibit_quit = Qnil;
/* Eat the event. */
break;
}
p->npending++;
#ifdef USABLE_SIGIO
if (interrupt_input)
handle_input_available_signal (sig);
else
#endif
{
/* Tell wait_reading_process_output that it needs to wake
up and look around. */
if (input_available_clear_time)
*input_available_clear_time = make_timespec (0, 0);
}
break;
}
}
static void
deliver_user_signal (int sig)
{
deliver_process_signal (sig, handle_user_signal);
}
static char *
find_user_signal_name (int sig)
{
struct user_signal_info *p;
for (p = user_signals; p; p = p->next)
if (p->sig == sig)
return p->name;
return NULL;
}
static void
store_user_signal_events (void)
{
struct user_signal_info *p;
struct input_event buf;
bool buf_initialized = false;
for (p = user_signals; p; p = p->next)
if (p->npending > 0)
{
if (! buf_initialized)
{
memset (&buf, 0, sizeof buf);
buf.kind = USER_SIGNAL_EVENT;
buf.frame_or_window = selected_frame;
buf_initialized = true;
}
do
{
buf.code = p->sig;
kbd_buffer_store_event (&buf);
p->npending--;
}
while (p->npending > 0);
}
}
\f
static void menu_bar_item (Lisp_Object, Lisp_Object, Lisp_Object, void *);
static Lisp_Object menu_bar_one_keymap_changed_items;
/* These variables hold the vector under construction within
menu_bar_items and its subroutines, and the current index
for storing into that vector. */
static Lisp_Object menu_bar_items_vector;
static int menu_bar_items_index;
static const char *separator_names[] = {
"space",
"no-line",
"single-line",
"double-line",
"single-dashed-line",
"double-dashed-line",
"shadow-etched-in",
"shadow-etched-out",
"shadow-etched-in-dash",
"shadow-etched-out-dash",
"shadow-double-etched-in",
"shadow-double-etched-out",
"shadow-double-etched-in-dash",
"shadow-double-etched-out-dash",
0,
};
/* Return true if LABEL specifies a separator. */
bool
menu_separator_name_p (const char *label)
{
if (!label)
return 0;
else if (strlen (label) > 3
&& memcmp (label, "--", 2) == 0
&& label[2] != '-')
{
int i;
label += 2;
for (i = 0; separator_names[i]; ++i)
if (strcmp (label, separator_names[i]) == 0)
return 1;
}
else
{
/* It's a separator if it contains only dashes. */
while (*label == '-')
++label;
return (*label == 0);
}
return 0;
}
/* Return a vector of menu items for a menu bar, appropriate
to the current buffer. Each item has three elements in the vector:
KEY STRING MAPLIST.
OLD is an old vector we can optionally reuse, or nil. */
Lisp_Object
menu_bar_items (Lisp_Object old)
{
/* The number of keymaps we're scanning right now, and the number of
keymaps we have allocated space for. */
ptrdiff_t nmaps;
/* maps[0..nmaps-1] are the prefix definitions of KEYBUF[0..t-1]
in the current keymaps, or nil where it is not a prefix. */
Lisp_Object *maps;
Lisp_Object mapsbuf[3];
Lisp_Object def, tail;
ptrdiff_t mapno;
Lisp_Object oquit;
USE_SAFE_ALLOCA;
/* In order to build the menus, we need to call the keymap
accessors. They all call maybe_quit. But this function is called
during redisplay, during which a quit is fatal. So inhibit
quitting while building the menus.
We do this instead of specbind because (1) errors will clear it anyway
and (2) this avoids risk of specpdl overflow. */
oquit = Vinhibit_quit;
Vinhibit_quit = Qt;
if (!NILP (old))
menu_bar_items_vector = old;
else
menu_bar_items_vector = Fmake_vector (make_number (24), Qnil);
menu_bar_items_index = 0;
/* Build our list of keymaps.
If we recognize a function key and replace its escape sequence in
keybuf with its symbol, or if the sequence starts with a mouse
click and we need to switch buffers, we jump back here to rebuild
the initial keymaps from the current buffer. */
{
Lisp_Object *tmaps;
/* Should overriding-terminal-local-map and overriding-local-map apply? */
if (!NILP (Voverriding_local_map_menu_flag)
&& !NILP (Voverriding_local_map))
{
/* Yes, use them (if non-nil) as well as the global map. */
maps = mapsbuf;
nmaps = 0;
if (!NILP (KVAR (current_kboard, Voverriding_terminal_local_map)))
maps[nmaps++] = KVAR (current_kboard, Voverriding_terminal_local_map);
if (!NILP (Voverriding_local_map))
maps[nmaps++] = Voverriding_local_map;
}
else
{
/* No, so use major and minor mode keymaps and keymap property.
Note that menu-bar bindings in the local-map and keymap
properties may not work reliable, as they are only
recognized when the menu-bar (or mode-line) is updated,
which does not normally happen after every command. */
ptrdiff_t nminor = current_minor_maps (NULL, &tmaps);
SAFE_NALLOCA (maps, 1, nminor + 4);
nmaps = 0;
Lisp_Object tem = KVAR (current_kboard, Voverriding_terminal_local_map);
if (!NILP (tem) && !NILP (Voverriding_local_map_menu_flag))
maps[nmaps++] = tem;
if (tem = get_local_map (PT, current_buffer, Qkeymap), !NILP (tem))
maps[nmaps++] = tem;
if (nminor != 0)
{
memcpy (maps + nmaps, tmaps, nminor * sizeof (maps[0]));
nmaps += nminor;
}
maps[nmaps++] = get_local_map (PT, current_buffer, Qlocal_map);
}
maps[nmaps++] = current_global_map;
}
/* Look up in each map the dummy prefix key `menu-bar'. */
for (mapno = nmaps - 1; mapno >= 0; mapno--)
if (!NILP (maps[mapno]))
{
def = get_keymap (access_keymap (maps[mapno], Qmenu_bar, 1, 0, 1),
0, 1);
if (CONSP (def))
{
menu_bar_one_keymap_changed_items = Qnil;
map_keymap_canonical (def, menu_bar_item, Qnil, NULL);
}
}
/* Move to the end those items that should be at the end. */
for (tail = Vmenu_bar_final_items; CONSP (tail); tail = XCDR (tail))
{
int i;
int end = menu_bar_items_index;
for (i = 0; i < end; i += 4)
if (EQ (XCAR (tail), AREF (menu_bar_items_vector, i)))
{
Lisp_Object tem0, tem1, tem2, tem3;
/* Move the item at index I to the end,
shifting all the others forward. */
tem0 = AREF (menu_bar_items_vector, i + 0);
tem1 = AREF (menu_bar_items_vector, i + 1);
tem2 = AREF (menu_bar_items_vector, i + 2);
tem3 = AREF (menu_bar_items_vector, i + 3);
if (end > i + 4)
memmove (aref_addr (menu_bar_items_vector, i),
aref_addr (menu_bar_items_vector, i + 4),
(end - i - 4) * word_size);
ASET (menu_bar_items_vector, end - 4, tem0);
ASET (menu_bar_items_vector, end - 3, tem1);
ASET (menu_bar_items_vector, end - 2, tem2);
ASET (menu_bar_items_vector, end - 1, tem3);
break;
}
}
/* Add nil, nil, nil, nil at the end. */
{
int i = menu_bar_items_index;
if (i + 4 > ASIZE (menu_bar_items_vector))
menu_bar_items_vector
= larger_vector (menu_bar_items_vector, 4, -1);
/* Add this item. */
ASET (menu_bar_items_vector, i, Qnil); i++;
ASET (menu_bar_items_vector, i, Qnil); i++;
ASET (menu_bar_items_vector, i, Qnil); i++;
ASET (menu_bar_items_vector, i, Qnil); i++;
menu_bar_items_index = i;
}
Vinhibit_quit = oquit;
SAFE_FREE ();
return menu_bar_items_vector;
}
\f
/* Add one item to menu_bar_items_vector, for KEY, ITEM_STRING and DEF.
If there's already an item for KEY, add this DEF to it. */
Lisp_Object item_properties;
static void
menu_bar_item (Lisp_Object key, Lisp_Object item, Lisp_Object dummy1, void *dummy2)
{
int i;
bool parsed;
Lisp_Object tem;
if (EQ (item, Qundefined))
{
/* If a map has an explicit `undefined' as definition,
discard any previously made menu bar item. */
for (i = 0; i < menu_bar_items_index; i += 4)
if (EQ (key, AREF (menu_bar_items_vector, i)))
{
if (menu_bar_items_index > i + 4)
memmove (aref_addr (menu_bar_items_vector, i),
aref_addr (menu_bar_items_vector, i + 4),
(menu_bar_items_index - i - 4) * word_size);
menu_bar_items_index -= 4;
}
}
/* If this keymap has already contributed to this KEY,
don't contribute to it a second time. */
tem = Fmemq (key, menu_bar_one_keymap_changed_items);
if (!NILP (tem) || NILP (item))
return;
menu_bar_one_keymap_changed_items
= Fcons (key, menu_bar_one_keymap_changed_items);
/* We add to menu_bar_one_keymap_changed_items before doing the
parse_menu_item, so that if it turns out it wasn't a menu item,
it still correctly hides any further menu item. */
parsed = parse_menu_item (item, 1);
if (!parsed)
return;
item = AREF (item_properties, ITEM_PROPERTY_DEF);
/* Find any existing item for this KEY. */
for (i = 0; i < menu_bar_items_index; i += 4)
if (EQ (key, AREF (menu_bar_items_vector, i)))
break;
/* If we did not find this KEY, add it at the end. */
if (i == menu_bar_items_index)
{
/* If vector is too small, get a bigger one. */
if (i + 4 > ASIZE (menu_bar_items_vector))
menu_bar_items_vector = larger_vector (menu_bar_items_vector, 4, -1);
/* Add this item. */
ASET (menu_bar_items_vector, i, key); i++;
ASET (menu_bar_items_vector, i,
AREF (item_properties, ITEM_PROPERTY_NAME)); i++;
ASET (menu_bar_items_vector, i, list1 (item)); i++;
ASET (menu_bar_items_vector, i, make_number (0)); i++;
menu_bar_items_index = i;
}
/* We did find an item for this KEY. Add ITEM to its list of maps. */
else
{
Lisp_Object old;
old = AREF (menu_bar_items_vector, i + 2);
/* If the new and the old items are not both keymaps,
the lookup will only find `item'. */
item = Fcons (item, KEYMAPP (item) && KEYMAPP (XCAR (old)) ? old : Qnil);
ASET (menu_bar_items_vector, i + 2, item);
}
}
\f
/* This is used as the handler when calling menu_item_eval_property. */
static Lisp_Object
menu_item_eval_property_1 (Lisp_Object arg)
{
/* If we got a quit from within the menu computation,
quit all the way out of it. This takes care of C-] in the debugger. */
if (CONSP (arg) && EQ (XCAR (arg), Qquit))
quit ();
return Qnil;
}
static Lisp_Object
eval_dyn (Lisp_Object form)
{
return Feval (form, Qnil);
}
/* Evaluate an expression and return the result (or nil if something
went wrong). Used to evaluate dynamic parts of menu items. */
Lisp_Object
menu_item_eval_property (Lisp_Object sexpr)
{
ptrdiff_t count = SPECPDL_INDEX ();
Lisp_Object val;
specbind (Qinhibit_redisplay, Qt);
val = internal_condition_case_1 (eval_dyn, sexpr, Qerror,
menu_item_eval_property_1);
return unbind_to (count, val);
}
/* This function parses a menu item and leaves the result in the
vector item_properties.
ITEM is a key binding, a possible menu item.
INMENUBAR is > 0 when this is considered for an entry in a menu bar
top level.
INMENUBAR is < 0 when this is considered for an entry in a keyboard menu.
parse_menu_item returns true if the item is a menu item and false
otherwise. */
bool
parse_menu_item (Lisp_Object item, int inmenubar)
{
Lisp_Object def, tem, item_string, start;
Lisp_Object filter;
Lisp_Object keyhint;
int i;
filter = Qnil;
keyhint = Qnil;
if (!CONSP (item))
return 0;
/* Create item_properties vector if necessary. */
if (NILP (item_properties))
item_properties
= Fmake_vector (make_number (ITEM_PROPERTY_ENABLE + 1), Qnil);
/* Initialize optional entries. */
for (i = ITEM_PROPERTY_DEF; i < ITEM_PROPERTY_ENABLE; i++)
ASET (item_properties, i, Qnil);
ASET (item_properties, ITEM_PROPERTY_ENABLE, Qt);
/* Save the item here to protect it from GC. */
ASET (item_properties, ITEM_PROPERTY_ITEM, item);
item_string = XCAR (item);
start = item;
item = XCDR (item);
if (STRINGP (item_string))
{
/* Old format menu item. */
ASET (item_properties, ITEM_PROPERTY_NAME, item_string);
/* Maybe help string. */
if (CONSP (item) && STRINGP (XCAR (item)))
{
ASET (item_properties, ITEM_PROPERTY_HELP,
Fsubstitute_command_keys (XCAR (item)));
start = item;
item = XCDR (item);
}
/* Maybe an obsolete key binding cache. */
if (CONSP (item) && CONSP (XCAR (item))
&& (NILP (XCAR (XCAR (item)))
|| VECTORP (XCAR (XCAR (item)))))
item = XCDR (item);
/* This is the real definition--the function to run. */
ASET (item_properties, ITEM_PROPERTY_DEF, item);
/* Get enable property, if any. */
if (SYMBOLP (item))
{
tem = Fget (item, Qmenu_enable);
if (!NILP (Venable_disabled_menus_and_buttons))
ASET (item_properties, ITEM_PROPERTY_ENABLE, Qt);
else if (!NILP (tem))
ASET (item_properties, ITEM_PROPERTY_ENABLE, tem);
}
}
else if (EQ (item_string, Qmenu_item) && CONSP (item))
{
/* New format menu item. */
ASET (item_properties, ITEM_PROPERTY_NAME, XCAR (item));
start = XCDR (item);
if (CONSP (start))
{
/* We have a real binding. */
ASET (item_properties, ITEM_PROPERTY_DEF, XCAR (start));
item = XCDR (start);
/* Is there an obsolete cache list with key equivalences. */
if (CONSP (item) && CONSP (XCAR (item)))
item = XCDR (item);
/* Parse properties. */
while (CONSP (item) && CONSP (XCDR (item)))
{
tem = XCAR (item);
item = XCDR (item);
if (EQ (tem, QCenable))
{
if (!NILP (Venable_disabled_menus_and_buttons))
ASET (item_properties, ITEM_PROPERTY_ENABLE, Qt);
else
ASET (item_properties, ITEM_PROPERTY_ENABLE, XCAR (item));
}
else if (EQ (tem, QCvisible))
{
/* If got a visible property and that evaluates to nil
then ignore this item. */
tem = menu_item_eval_property (XCAR (item));
if (NILP (tem))
return 0;
}
else if (EQ (tem, QChelp))
{
Lisp_Object help = XCAR (item);
if (STRINGP (help))
help = Fsubstitute_command_keys (help);
ASET (item_properties, ITEM_PROPERTY_HELP, help);
}
else if (EQ (tem, QCfilter))
filter = item;
else if (EQ (tem, QCkey_sequence))
{
tem = XCAR (item);
if (SYMBOLP (tem) || STRINGP (tem) || VECTORP (tem))
/* Be GC protected. Set keyhint to item instead of tem. */
keyhint = item;
}
else if (EQ (tem, QCkeys))
{
tem = XCAR (item);
if (CONSP (tem) || STRINGP (tem))
ASET (item_properties, ITEM_PROPERTY_KEYEQ, tem);
}
else if (EQ (tem, QCbutton) && CONSP (XCAR (item)))
{
Lisp_Object type;
tem = XCAR (item);
type = XCAR (tem);
if (EQ (type, QCtoggle) || EQ (type, QCradio))
{
ASET (item_properties, ITEM_PROPERTY_SELECTED,
XCDR (tem));
ASET (item_properties, ITEM_PROPERTY_TYPE, type);
}
}
item = XCDR (item);
}
}
else if (inmenubar || !NILP (start))
return 0;
}
else
return 0; /* not a menu item */
/* If item string is not a string, evaluate it to get string.
If we don't get a string, skip this item. */
item_string = AREF (item_properties, ITEM_PROPERTY_NAME);
if (!(STRINGP (item_string)))
{
item_string = menu_item_eval_property (item_string);
if (!STRINGP (item_string))
return 0;
ASET (item_properties, ITEM_PROPERTY_NAME, item_string);
}
/* If got a filter apply it on definition. */
def = AREF (item_properties, ITEM_PROPERTY_DEF);
if (!NILP (filter))
{
def = menu_item_eval_property (list2 (XCAR (filter),
list2 (Qquote, def)));
ASET (item_properties, ITEM_PROPERTY_DEF, def);
}
/* Enable or disable selection of item. */
tem = AREF (item_properties, ITEM_PROPERTY_ENABLE);
if (!EQ (tem, Qt))
{
tem = menu_item_eval_property (tem);
if (inmenubar && NILP (tem))
return 0; /* Ignore disabled items in menu bar. */
ASET (item_properties, ITEM_PROPERTY_ENABLE, tem);
}
/* If we got no definition, this item is just unselectable text which
is OK in a submenu but not in the menubar. */
if (NILP (def))
return (!inmenubar);
/* See if this is a separate pane or a submenu. */
def = AREF (item_properties, ITEM_PROPERTY_DEF);
tem = get_keymap (def, 0, 1);
/* For a subkeymap, just record its details and exit. */
if (CONSP (tem))
{
ASET (item_properties, ITEM_PROPERTY_MAP, tem);
ASET (item_properties, ITEM_PROPERTY_DEF, tem);
return 1;
}
/* At the top level in the menu bar, do likewise for commands also.
The menu bar does not display equivalent key bindings anyway.
ITEM_PROPERTY_DEF is already set up properly. */
if (inmenubar > 0)
return 1;
{ /* This is a command. See if there is an equivalent key binding. */
Lisp_Object keyeq = AREF (item_properties, ITEM_PROPERTY_KEYEQ);
AUTO_STRING (space_space, " ");
/* The previous code preferred :key-sequence to :keys, so we
preserve this behavior. */
if (STRINGP (keyeq) && !CONSP (keyhint))
keyeq = concat2 (space_space, Fsubstitute_command_keys (keyeq));
else
{
Lisp_Object prefix = keyeq;
Lisp_Object keys = Qnil;
if (CONSP (prefix))
{
def = XCAR (prefix);
prefix = XCDR (prefix);
}
else
def = AREF (item_properties, ITEM_PROPERTY_DEF);
if (CONSP (keyhint) && !NILP (XCAR (keyhint)))
{
keys = XCAR (keyhint);
tem = Fkey_binding (keys, Qnil, Qnil, Qnil);
/* We have a suggested key. Is it bound to the command? */
if (NILP (tem)
|| (!EQ (tem, def)
/* If the command is an alias for another
(such as lmenu.el set it up), check if the
original command matches the cached command. */
&& !(SYMBOLP (def)
&& EQ (tem, XSYMBOL (def)->function))))
keys = Qnil;
}
if (NILP (keys))
keys = Fwhere_is_internal (def, Qnil, Qt, Qnil, Qnil);
if (!NILP (keys))
{
tem = Fkey_description (keys, Qnil);
if (CONSP (prefix))
{
if (STRINGP (XCAR (prefix)))
tem = concat2 (XCAR (prefix), tem);
if (STRINGP (XCDR (prefix)))
tem = concat2 (tem, XCDR (prefix));
}
keyeq = concat2 (space_space, tem);
}
else
keyeq = Qnil;
}
/* If we have an equivalent key binding, use that. */
ASET (item_properties, ITEM_PROPERTY_KEYEQ, keyeq);
}
/* Include this when menu help is implemented.
tem = XVECTOR (item_properties)->contents[ITEM_PROPERTY_HELP];
if (!(NILP (tem) || STRINGP (tem)))
{
tem = menu_item_eval_property (tem);
if (!STRINGP (tem))
tem = Qnil;
XVECTOR (item_properties)->contents[ITEM_PROPERTY_HELP] = tem;
}
*/
/* Handle radio buttons or toggle boxes. */
tem = AREF (item_properties, ITEM_PROPERTY_SELECTED);
if (!NILP (tem))
ASET (item_properties, ITEM_PROPERTY_SELECTED,
menu_item_eval_property (tem));
return 1;
}
\f
/***********************************************************************
Tool-bars
***********************************************************************/
/* A vector holding tool bar items while they are parsed in function
tool_bar_items. Each item occupies TOOL_BAR_ITEM_NSCLOTS elements
in the vector. */
static Lisp_Object tool_bar_items_vector;
/* A vector holding the result of parse_tool_bar_item. Layout is like
the one for a single item in tool_bar_items_vector. */
static Lisp_Object tool_bar_item_properties;
/* Next free index in tool_bar_items_vector. */
static int ntool_bar_items;
/* Function prototypes. */
static void init_tool_bar_items (Lisp_Object);
static void process_tool_bar_item (Lisp_Object, Lisp_Object, Lisp_Object,
void *);
static bool parse_tool_bar_item (Lisp_Object, Lisp_Object);
static void append_tool_bar_item (void);
/* Return a vector of tool bar items for keymaps currently in effect.
Reuse vector REUSE if non-nil. Return in *NITEMS the number of
tool bar items found. */
Lisp_Object
tool_bar_items (Lisp_Object reuse, int *nitems)
{
Lisp_Object *maps;
Lisp_Object mapsbuf[3];
ptrdiff_t nmaps, i;
Lisp_Object oquit;
Lisp_Object *tmaps;
USE_SAFE_ALLOCA;
*nitems = 0;
/* In order to build the menus, we need to call the keymap
accessors. They all call maybe_quit. But this function is called
during redisplay, during which a quit is fatal. So inhibit
quitting while building the menus. We do this instead of
specbind because (1) errors will clear it anyway and (2) this
avoids risk of specpdl overflow. */
oquit = Vinhibit_quit;
Vinhibit_quit = Qt;
/* Initialize tool_bar_items_vector and protect it from GC. */
init_tool_bar_items (reuse);
/* Build list of keymaps in maps. Set nmaps to the number of maps
to process. */
/* Should overriding-terminal-local-map and overriding-local-map apply? */
if (!NILP (Voverriding_local_map_menu_flag)
&& !NILP (Voverriding_local_map))
{
/* Yes, use them (if non-nil) as well as the global map. */
maps = mapsbuf;
nmaps = 0;
if (!NILP (KVAR (current_kboard, Voverriding_terminal_local_map)))
maps[nmaps++] = KVAR (current_kboard, Voverriding_terminal_local_map);
if (!NILP (Voverriding_local_map))
maps[nmaps++] = Voverriding_local_map;
}
else
{
/* No, so use major and minor mode keymaps and keymap property.
Note that tool-bar bindings in the local-map and keymap
properties may not work reliable, as they are only
recognized when the tool-bar (or mode-line) is updated,
which does not normally happen after every command. */
ptrdiff_t nminor = current_minor_maps (NULL, &tmaps);
SAFE_NALLOCA (maps, 1, nminor + 4);
nmaps = 0;
Lisp_Object tem = KVAR (current_kboard, Voverriding_terminal_local_map);
if (!NILP (tem) && !NILP (Voverriding_local_map_menu_flag))
maps[nmaps++] = tem;
if (tem = get_local_map (PT, current_buffer, Qkeymap), !NILP (tem))
maps[nmaps++] = tem;
if (nminor != 0)
{
memcpy (maps + nmaps, tmaps, nminor * sizeof (maps[0]));
nmaps += nminor;
}
maps[nmaps++] = get_local_map (PT, current_buffer, Qlocal_map);
}
/* Add global keymap at the end. */
maps[nmaps++] = current_global_map;
/* Process maps in reverse order and look up in each map the prefix
key `tool-bar'. */
for (i = nmaps - 1; i >= 0; --i)
if (!NILP (maps[i]))
{
Lisp_Object keymap;
keymap = get_keymap (access_keymap (maps[i], Qtool_bar, 1, 0, 1), 0, 1);
if (CONSP (keymap))
map_keymap (keymap, process_tool_bar_item, Qnil, NULL, 1);
}
Vinhibit_quit = oquit;
*nitems = ntool_bar_items / TOOL_BAR_ITEM_NSLOTS;
SAFE_FREE ();
return tool_bar_items_vector;
}
/* Process the definition of KEY which is DEF. */
static void
process_tool_bar_item (Lisp_Object key, Lisp_Object def, Lisp_Object data, void *args)
{
int i;
if (EQ (def, Qundefined))
{
/* If a map has an explicit `undefined' as definition,
discard any previously made item. */
for (i = 0; i < ntool_bar_items; i += TOOL_BAR_ITEM_NSLOTS)
{
Lisp_Object *v = XVECTOR (tool_bar_items_vector)->contents + i;
if (EQ (key, v[TOOL_BAR_ITEM_KEY]))
{
if (ntool_bar_items > i + TOOL_BAR_ITEM_NSLOTS)
memmove (v, v + TOOL_BAR_ITEM_NSLOTS,
((ntool_bar_items - i - TOOL_BAR_ITEM_NSLOTS)
* word_size));
ntool_bar_items -= TOOL_BAR_ITEM_NSLOTS;
break;
}
}
}
else if (parse_tool_bar_item (key, def))
/* Append a new tool bar item to tool_bar_items_vector. Accept
more than one definition for the same key. */
append_tool_bar_item ();
}
/* Access slot with index IDX of vector tool_bar_item_properties. */
#define PROP(IDX) AREF (tool_bar_item_properties, (IDX))
static void
set_prop (ptrdiff_t idx, Lisp_Object val)
{
ASET (tool_bar_item_properties, idx, val);
}
/* Parse a tool bar item specification ITEM for key KEY and return the
result in tool_bar_item_properties. Value is false if ITEM is
invalid.
ITEM is a list `(menu-item CAPTION BINDING PROPS...)'.
CAPTION is the caption of the item, If it's not a string, it is
evaluated to get a string.
BINDING is the tool bar item's binding. Tool-bar items with keymaps
as binding are currently ignored.
The following properties are recognized:
- `:enable FORM'.
FORM is evaluated and specifies whether the tool bar item is
enabled or disabled.
- `:visible FORM'
FORM is evaluated and specifies whether the tool bar item is visible.
- `:filter FUNCTION'
FUNCTION is invoked with one parameter `(quote BINDING)'. Its
result is stored as the new binding.
- `:button (TYPE SELECTED)'
TYPE must be one of `:radio' or `:toggle'. SELECTED is evaluated
and specifies whether the button is selected (pressed) or not.
- `:image IMAGES'
IMAGES is either a single image specification or a vector of four
image specifications. See enum tool_bar_item_images.
- `:help HELP-STRING'.
Gives a help string to display for the tool bar item.
- `:label LABEL-STRING'.
A text label to show with the tool bar button if labels are enabled. */
static bool
parse_tool_bar_item (Lisp_Object key, Lisp_Object item)
{
Lisp_Object filter = Qnil;
Lisp_Object caption;
int i;
bool have_label = false;
/* Definition looks like `(menu-item CAPTION BINDING PROPS...)'.
Rule out items that aren't lists, don't start with
`menu-item' or whose rest following `tool-bar-item' is not a
list. */
if (!CONSP (item))
return 0;
/* As an exception, allow old-style menu separators. */
if (STRINGP (XCAR (item)))
item = list1 (XCAR (item));
else if (!EQ (XCAR (item), Qmenu_item)
|| (item = XCDR (item), !CONSP (item)))
return 0;
/* Create tool_bar_item_properties vector if necessary. Reset it to
defaults. */
if (VECTORP (tool_bar_item_properties))
{
for (i = 0; i < TOOL_BAR_ITEM_NSLOTS; ++i)
set_prop (i, Qnil);
}
else
tool_bar_item_properties
= Fmake_vector (make_number (TOOL_BAR_ITEM_NSLOTS), Qnil);
/* Set defaults. */
set_prop (TOOL_BAR_ITEM_KEY, key);
set_prop (TOOL_BAR_ITEM_ENABLED_P, Qt);
/* Get the caption of the item. If the caption is not a string,
evaluate it to get a string. If we don't get a string, skip this
item. */
caption = XCAR (item);
if (!STRINGP (caption))
{
caption = menu_item_eval_property (caption);
if (!STRINGP (caption))
return 0;
}
set_prop (TOOL_BAR_ITEM_CAPTION, caption);
/* If the rest following the caption is not a list, the menu item is
either a separator, or invalid. */
item = XCDR (item);
if (!CONSP (item))
{
if (menu_separator_name_p (SSDATA (caption)))
{
set_prop (TOOL_BAR_ITEM_TYPE, Qt);
#if !defined (USE_GTK) && !defined (HAVE_NS)
/* If we use build_desired_tool_bar_string to render the
tool bar, the separator is rendered as an image. */
set_prop (TOOL_BAR_ITEM_IMAGES,
(menu_item_eval_property
(Vtool_bar_separator_image_expression)));
set_prop (TOOL_BAR_ITEM_ENABLED_P, Qnil);
set_prop (TOOL_BAR_ITEM_SELECTED_P, Qnil);
set_prop (TOOL_BAR_ITEM_CAPTION, Qnil);
#endif
return 1;
}
return 0;
}
/* Store the binding. */
set_prop (TOOL_BAR_ITEM_BINDING, XCAR (item));
item = XCDR (item);
/* Ignore cached key binding, if any. */
if (CONSP (item) && CONSP (XCAR (item)))
item = XCDR (item);
/* Process the rest of the properties. */
for (; CONSP (item) && CONSP (XCDR (item)); item = XCDR (XCDR (item)))
{
Lisp_Object ikey, value;
ikey = XCAR (item);
value = XCAR (XCDR (item));
if (EQ (ikey, QCenable))
{
/* `:enable FORM'. */
if (!NILP (Venable_disabled_menus_and_buttons))
set_prop (TOOL_BAR_ITEM_ENABLED_P, Qt);
else
set_prop (TOOL_BAR_ITEM_ENABLED_P, value);
}
else if (EQ (ikey, QCvisible))
{
/* `:visible FORM'. If got a visible property and that
evaluates to nil then ignore this item. */
if (NILP (menu_item_eval_property (value)))
return 0;
}
else if (EQ (ikey, QChelp))
/* `:help HELP-STRING'. */
set_prop (TOOL_BAR_ITEM_HELP, value);
else if (EQ (ikey, QCvert_only))
/* `:vert-only t/nil'. */
set_prop (TOOL_BAR_ITEM_VERT_ONLY, value);
else if (EQ (ikey, QClabel))
{
const char *bad_label = "!!?GARBLED ITEM?!!";
/* `:label LABEL-STRING'. */
set_prop (TOOL_BAR_ITEM_LABEL,
STRINGP (value) ? value : build_string (bad_label));
have_label = true;
}
else if (EQ (ikey, QCfilter))
/* ':filter FORM'. */
filter = value;
else if (EQ (ikey, QCbutton) && CONSP (value))
{
/* `:button (TYPE . SELECTED)'. */
Lisp_Object type, selected;
type = XCAR (value);
selected = XCDR (value);
if (EQ (type, QCtoggle) || EQ (type, QCradio))
{
set_prop (TOOL_BAR_ITEM_SELECTED_P, selected);
set_prop (TOOL_BAR_ITEM_TYPE, type);
}
}
else if (EQ (ikey, QCimage)
&& (CONSP (value)
|| (VECTORP (value) && ASIZE (value) == 4)))
/* Value is either a single image specification or a vector
of 4 such specifications for the different button states. */
set_prop (TOOL_BAR_ITEM_IMAGES, value);
else if (EQ (ikey, QCrtl))
/* ':rtl STRING' */
set_prop (TOOL_BAR_ITEM_RTL_IMAGE, value);
}
if (!have_label)
{
/* Try to make one from caption and key. */
Lisp_Object tkey = PROP (TOOL_BAR_ITEM_KEY);
Lisp_Object tcapt = PROP (TOOL_BAR_ITEM_CAPTION);
const char *label = SYMBOLP (tkey) ? SSDATA (SYMBOL_NAME (tkey)) : "";
const char *capt = STRINGP (tcapt) ? SSDATA (tcapt) : "";
ptrdiff_t max_lbl =
2 * max (0, min (tool_bar_max_label_size, STRING_BYTES_BOUND / 2));
char *buf = xmalloc (max_lbl + 1);
Lisp_Object new_lbl;
ptrdiff_t caption_len = strlen (capt);
if (caption_len <= max_lbl && capt[0] != '\0')
{
strcpy (buf, capt);
while (caption_len > 0 && buf[caption_len - 1] == '.')
caption_len--;
buf[caption_len] = '\0';
label = capt = buf;
}
if (strlen (label) <= max_lbl && label[0] != '\0')
{
ptrdiff_t j;
if (label != buf)
strcpy (buf, label);
for (j = 0; buf[j] != '\0'; ++j)
if (buf[j] == '-')
buf[j] = ' ';
label = buf;
}
else
label = "";
new_lbl = Fupcase_initials (build_string (label));
if (SCHARS (new_lbl) <= tool_bar_max_label_size)
set_prop (TOOL_BAR_ITEM_LABEL, new_lbl);
else
set_prop (TOOL_BAR_ITEM_LABEL, empty_unibyte_string);
xfree (buf);
}
/* If got a filter apply it on binding. */
if (!NILP (filter))
set_prop (TOOL_BAR_ITEM_BINDING,
(menu_item_eval_property
(list2 (filter,
list2 (Qquote,
PROP (TOOL_BAR_ITEM_BINDING))))));
/* See if the binding is a keymap. Give up if it is. */
if (CONSP (get_keymap (PROP (TOOL_BAR_ITEM_BINDING), 0, 1)))
return 0;
/* Enable or disable selection of item. */
if (!EQ (PROP (TOOL_BAR_ITEM_ENABLED_P), Qt))
set_prop (TOOL_BAR_ITEM_ENABLED_P,
menu_item_eval_property (PROP (TOOL_BAR_ITEM_ENABLED_P)));
/* Handle radio buttons or toggle boxes. */
if (!NILP (PROP (TOOL_BAR_ITEM_SELECTED_P)))
set_prop (TOOL_BAR_ITEM_SELECTED_P,
menu_item_eval_property (PROP (TOOL_BAR_ITEM_SELECTED_P)));
return 1;
#undef PROP
}
/* Initialize tool_bar_items_vector. REUSE, if non-nil, is a vector
that can be reused. */
static void
init_tool_bar_items (Lisp_Object reuse)
{
if (VECTORP (reuse))
tool_bar_items_vector = reuse;
else
tool_bar_items_vector = Fmake_vector (make_number (64), Qnil);
ntool_bar_items = 0;
}
/* Append parsed tool bar item properties from
tool_bar_item_properties */
static void
append_tool_bar_item (void)
{
ptrdiff_t incr
= (ntool_bar_items
- (ASIZE (tool_bar_items_vector) - TOOL_BAR_ITEM_NSLOTS));
/* Enlarge tool_bar_items_vector if necessary. */
if (incr > 0)
tool_bar_items_vector = larger_vector (tool_bar_items_vector, incr, -1);
/* Append entries from tool_bar_item_properties to the end of
tool_bar_items_vector. */
vcopy (tool_bar_items_vector, ntool_bar_items,
XVECTOR (tool_bar_item_properties)->contents, TOOL_BAR_ITEM_NSLOTS);
ntool_bar_items += TOOL_BAR_ITEM_NSLOTS;
}
\f
/* Read a character using menus based on the keymap MAP.
Return nil if there are no menus in the maps.
Return t if we displayed a menu but the user rejected it.
PREV_EVENT is the previous input event, or nil if we are reading
the first event of a key sequence.
If USED_MOUSE_MENU is non-null, set *USED_MOUSE_MENU to true
if we used a mouse menu to read the input, or false otherwise. If
USED_MOUSE_MENU is null, don't dereference it.
The prompting is done based on the prompt-string of the map
and the strings associated with various map elements.
This can be done with X menus or with menus put in the minibuf.
These are done in different ways, depending on how the input will be read.
Menus using X are done after auto-saving in read-char, getting the input
event from Fx_popup_menu; menus using the minibuf use read_char recursively
and do auto-saving in the inner call of read_char. */
static Lisp_Object
read_char_x_menu_prompt (Lisp_Object map,
Lisp_Object prev_event, bool *used_mouse_menu)
{
if (used_mouse_menu)
*used_mouse_menu = false;
/* Use local over global Menu maps. */
if (! menu_prompting)
return Qnil;
/* If we got to this point via a mouse click,
use a real menu for mouse selection. */
if (EVENT_HAS_PARAMETERS (prev_event)
&& !EQ (XCAR (prev_event), Qmenu_bar)
&& !EQ (XCAR (prev_event), Qtool_bar))
{
/* Display the menu and get the selection. */
Lisp_Object value;
value = Fx_popup_menu (prev_event, get_keymap (map, 0, 1));
if (CONSP (value))
{
Lisp_Object tem;
record_menu_key (XCAR (value));
/* If we got multiple events, unread all but
the first.
There is no way to prevent those unread events
from showing up later in last_nonmenu_event.
So turn symbol and integer events into lists,
to indicate that they came from a mouse menu,
so that when present in last_nonmenu_event
they won't confuse things. */
for (tem = XCDR (value); CONSP (tem); tem = XCDR (tem))
{
record_menu_key (XCAR (tem));
if (SYMBOLP (XCAR (tem))
|| INTEGERP (XCAR (tem)))
XSETCAR (tem, Fcons (XCAR (tem), Qdisabled));
}
/* If we got more than one event, put all but the first
onto this list to be read later.
Return just the first event now. */
Vunread_command_events
= nconc2 (XCDR (value), Vunread_command_events);
value = XCAR (value);
}
else if (NILP (value))
value = Qt;
if (used_mouse_menu)
*used_mouse_menu = true;
return value;
}
return Qnil ;
}
static Lisp_Object
read_char_minibuf_menu_prompt (int commandflag,
Lisp_Object map)
{
Lisp_Object name;
ptrdiff_t nlength;
/* FIXME: Use the minibuffer's frame width. */
ptrdiff_t width = FRAME_COLS (SELECTED_FRAME ()) - 4;
ptrdiff_t idx = -1;
bool nobindings = true;
Lisp_Object rest, vector;
Lisp_Object prompt_strings = Qnil;
vector = Qnil;
if (! menu_prompting)
return Qnil;
map = get_keymap (map, 0, 1);
name = Fkeymap_prompt (map);
/* If we don't have any menus, just read a character normally. */
if (!STRINGP (name))
return Qnil;
#define PUSH_C_STR(str, listvar) \
listvar = Fcons (build_unibyte_string (str), listvar)
/* Prompt string always starts with map's prompt, and a space. */
prompt_strings = Fcons (name, prompt_strings);
PUSH_C_STR (": ", prompt_strings);
nlength = SCHARS (name) + 2;
rest = map;
/* Present the documented bindings, a line at a time. */
while (1)
{
bool notfirst = false;
Lisp_Object menu_strings = prompt_strings;
ptrdiff_t i = nlength;
Lisp_Object obj;
Lisp_Object orig_defn_macro;
/* Loop over elements of map. */
while (i < width)
{
Lisp_Object elt;
/* FIXME: Use map_keymap to handle new keymap formats. */
/* At end of map, wrap around if just starting,
or end this line if already have something on it. */
if (NILP (rest))
{
if (notfirst || nobindings)
break;
else
rest = map;
}
/* Look at the next element of the map. */
if (idx >= 0)
elt = AREF (vector, idx);
else
elt = Fcar_safe (rest);
if (idx < 0 && VECTORP (elt))
{
/* If we found a dense table in the keymap,
advanced past it, but start scanning its contents. */
rest = Fcdr_safe (rest);
vector = elt;
idx = 0;
}
else
{
/* An ordinary element. */
Lisp_Object event, tem;
if (idx < 0)
{
event = Fcar_safe (elt); /* alist */
elt = Fcdr_safe (elt);
}
else
{
XSETINT (event, idx); /* vector */
}
/* Ignore the element if it has no prompt string. */
if (INTEGERP (event) && parse_menu_item (elt, -1))
{
/* True if the char to type matches the string. */
bool char_matches;
Lisp_Object upcased_event, downcased_event;
Lisp_Object desc = Qnil;
Lisp_Object s
= AREF (item_properties, ITEM_PROPERTY_NAME);
upcased_event = Fupcase (event);
downcased_event = Fdowncase (event);
char_matches = (XINT (upcased_event) == SREF (s, 0)
|| XINT (downcased_event) == SREF (s, 0));
if (! char_matches)
desc = Fsingle_key_description (event, Qnil);
#if 0 /* It is redundant to list the equivalent key bindings because
the prefix is what the user has already typed. */
tem
= XVECTOR (item_properties)->contents[ITEM_PROPERTY_KEYEQ];
if (!NILP (tem))
/* Insert equivalent keybinding. */
s = concat2 (s, tem);
#endif
tem
= AREF (item_properties, ITEM_PROPERTY_TYPE);
if (EQ (tem, QCradio) || EQ (tem, QCtoggle))
{
/* Insert button prefix. */
Lisp_Object selected
= AREF (item_properties, ITEM_PROPERTY_SELECTED);
AUTO_STRING (radio_yes, "(*) ");
AUTO_STRING (radio_no , "( ) ");
AUTO_STRING (check_yes, "[X] ");
AUTO_STRING (check_no , "[ ] ");
if (EQ (tem, QCradio))
tem = NILP (selected) ? radio_yes : radio_no;
else
tem = NILP (selected) ? check_yes : check_no;
s = concat2 (tem, s);
}
/* If we have room for the prompt string, add it to this line.
If this is the first on the line, always add it. */
if ((SCHARS (s) + i + 2
+ (char_matches ? 0 : SCHARS (desc) + 3))
< width
|| !notfirst)
{
ptrdiff_t thiswidth;
/* Punctuate between strings. */
if (notfirst)
{
PUSH_C_STR (", ", menu_strings);
i += 2;
}
notfirst = true;
nobindings = false;
/* If the char to type doesn't match the string's
first char, explicitly show what char to type. */
if (! char_matches)
{
/* Add as much of string as fits. */
thiswidth = min (SCHARS (desc), width - i);
menu_strings
= Fcons (Fsubstring (desc, make_number (0),
make_number (thiswidth)),
menu_strings);
i += thiswidth;
PUSH_C_STR (" = ", menu_strings);
i += 3;
}
/* Add as much of string as fits. */
thiswidth = min (SCHARS (s), width - i);
menu_strings
= Fcons (Fsubstring (s, make_number (0),
make_number (thiswidth)),
menu_strings);
i += thiswidth;
}
else
{
/* If this element does not fit, end the line now,
and save the element for the next line. */
PUSH_C_STR ("...", menu_strings);
break;
}
}
/* Move past this element. */
if (idx >= 0 && idx + 1 >= ASIZE (vector))
/* Handle reaching end of dense table. */
idx = -1;
if (idx >= 0)
idx++;
else
rest = Fcdr_safe (rest);
}
}
/* Prompt with that and read response. */
message3_nolog (apply1 (intern ("concat"), Fnreverse (menu_strings)));
/* Make believe it's not a keyboard macro in case the help char
is pressed. Help characters are not recorded because menu prompting
is not used on replay. */
orig_defn_macro = KVAR (current_kboard, defining_kbd_macro);
kset_defining_kbd_macro (current_kboard, Qnil);
do
obj = read_char (commandflag, Qnil, Qt, 0, NULL);
while (BUFFERP (obj));
kset_defining_kbd_macro (current_kboard, orig_defn_macro);
if (!INTEGERP (obj) || XINT (obj) == -2
|| (! EQ (obj, menu_prompt_more_char)
&& (!INTEGERP (menu_prompt_more_char)
|| ! EQ (obj, make_number (Ctl (XINT (menu_prompt_more_char)))))))
{
if (!NILP (KVAR (current_kboard, defining_kbd_macro)))
store_kbd_macro_char (obj);
return obj;
}
/* Help char - go round again. */
}
}
\f
/* Reading key sequences. */
static Lisp_Object
follow_key (Lisp_Object keymap, Lisp_Object key)
{
return access_keymap (get_keymap (keymap, 0, 1),
key, 1, 0, 1);
}
static Lisp_Object
active_maps (Lisp_Object first_event)
{
Lisp_Object position
= CONSP (first_event) ? CAR_SAFE (XCDR (first_event)) : Qnil;
return Fcons (Qkeymap, Fcurrent_active_maps (Qt, position));
}
/* Structure used to keep track of partial application of key remapping
such as Vfunction_key_map and Vkey_translation_map. */
typedef struct keyremap
{
/* This is the map originally specified for this use. */
Lisp_Object parent;
/* This is a submap reached by looking up, in PARENT,
the events from START to END. */
Lisp_Object map;
/* Positions [START, END) in the key sequence buffer
are the key that we have scanned so far.
Those events are the ones that we will replace
if PARENT maps them into a key sequence. */
int start, end;
} keyremap;
/* Lookup KEY in MAP.
MAP is a keymap mapping keys to key vectors or functions.
If the mapping is a function and DO_FUNCALL is true,
the function is called with PROMPT as parameter and its return
value is used as the return value of this function (after checking
that it is indeed a vector). */
static Lisp_Object
access_keymap_keyremap (Lisp_Object map, Lisp_Object key, Lisp_Object prompt,
bool do_funcall)
{
Lisp_Object next;
next = access_keymap (map, key, 1, 0, 1);
/* Handle a symbol whose function definition is a keymap
or an array. */
if (SYMBOLP (next) && !NILP (Ffboundp (next))
&& (ARRAYP (XSYMBOL (next)->function)
|| KEYMAPP (XSYMBOL (next)->function)))
next = Fautoload_do_load (XSYMBOL (next)->function, next, Qnil);
/* If the keymap gives a function, not an
array, then call the function with one arg and use
its value instead. */
if (do_funcall && FUNCTIONP (next))
{
Lisp_Object tem;
tem = next;
next = call1 (next, prompt);
/* If the function returned something invalid,
barf--don't ignore it. */
if (! (NILP (next) || VECTORP (next) || STRINGP (next)))
error ("Function %s returns invalid key sequence",
SSDATA (SYMBOL_NAME (tem)));
}
return next;
}
/* Do one step of the key remapping used for function-key-map and
key-translation-map:
KEYBUF is the buffer holding the input events.
BUFSIZE is its maximum size.
FKEY is a pointer to the keyremap structure to use.
INPUT is the index of the last element in KEYBUF.
DOIT if true says that the remapping can actually take place.
DIFF is used to return the number of keys added/removed by the remapping.
PARENT is the root of the keymap.
PROMPT is the prompt to use if the remapping happens through a function.
Return true if the remapping actually took place. */
static bool
keyremap_step (Lisp_Object *keybuf, int bufsize, volatile keyremap *fkey,
int input, bool doit, int *diff, Lisp_Object prompt)
{
Lisp_Object next, key;
key = keybuf[fkey->end++];
if (KEYMAPP (fkey->parent))
next = access_keymap_keyremap (fkey->map, key, prompt, doit);
else
next = Qnil;
/* If keybuf[fkey->start..fkey->end] is bound in the
map and we're in a position to do the key remapping, replace it with
the binding and restart with fkey->start at the end. */
if ((VECTORP (next) || STRINGP (next)) && doit)
{
int len = XFASTINT (Flength (next));
int i;
*diff = len - (fkey->end - fkey->start);
if (bufsize - input <= *diff)
error ("Key sequence too long");
/* Shift the keys that follow fkey->end. */
if (*diff < 0)
for (i = fkey->end; i < input; i++)
keybuf[i + *diff] = keybuf[i];
else if (*diff > 0)
for (i = input - 1; i >= fkey->end; i--)
keybuf[i + *diff] = keybuf[i];
/* Overwrite the old keys with the new ones. */
for (i = 0; i < len; i++)
keybuf[fkey->start + i]
= Faref (next, make_number (i));
fkey->start = fkey->end += *diff;
fkey->map = fkey->parent;
return 1;
}
fkey->map = get_keymap (next, 0, 1);
/* If we no longer have a bound suffix, try a new position for
fkey->start. */
if (!CONSP (fkey->map))
{
fkey->end = ++fkey->start;
fkey->map = fkey->parent;
}
return 0;
}
static bool
test_undefined (Lisp_Object binding)
{
return (NILP (binding)
|| EQ (binding, Qundefined)
|| (SYMBOLP (binding)
&& EQ (Fcommand_remapping (binding, Qnil, Qnil), Qundefined)));
}
/* Read a sequence of keys that ends with a non prefix character,
storing it in KEYBUF, a buffer of size BUFSIZE.
Prompt with PROMPT.
Return the length of the key sequence stored.
Return -1 if the user rejected a command menu.
Echo starting immediately unless `prompt' is 0.
If PREVENT_REDISPLAY is non-zero, avoid redisplay by calling
read_char with a suitable COMMANDFLAG argument.
Where a key sequence ends depends on the currently active keymaps.
These include any minor mode keymaps active in the current buffer,
the current buffer's local map, and the global map.
If a key sequence has no other bindings, we check Vfunction_key_map
to see if some trailing subsequence might be the beginning of a
function key's sequence. If so, we try to read the whole function
key, and substitute its symbolic name into the key sequence.
We ignore unbound `down-' mouse clicks. We turn unbound `drag-' and
`double-' events into similar click events, if that would make them
bound. We try to turn `triple-' events first into `double-' events,
then into clicks.
If we get a mouse click in a mode line, vertical divider, or other
non-text area, we treat the click as if it were prefixed by the
symbol denoting that area - `mode-line', `vertical-line', or
whatever.
If the sequence starts with a mouse click, we read the key sequence
with respect to the buffer clicked on, not the current buffer.
If the user switches frames in the midst of a key sequence, we put
off the switch-frame event until later; the next call to
read_char will return it.
If FIX_CURRENT_BUFFER, we restore current_buffer
from the selected window's buffer. */
static int
read_key_sequence (Lisp_Object *keybuf, int bufsize, Lisp_Object prompt,
bool dont_downcase_last, bool can_return_switch_frame,
bool fix_current_buffer, bool prevent_redisplay)
{
ptrdiff_t count = SPECPDL_INDEX ();
/* How many keys there are in the current key sequence. */
int t;
/* The length of the echo buffer when we started reading, and
the length of this_command_keys when we started reading. */
ptrdiff_t echo_start UNINIT;
ptrdiff_t keys_start;
Lisp_Object current_binding = Qnil;
Lisp_Object first_event = Qnil;
/* Index of the first key that has no binding.
It is useless to try fkey.start larger than that. */
int first_unbound;
/* If t < mock_input, then KEYBUF[t] should be read as the next
input key.
We use this to recover after recognizing a function key. Once we
realize that a suffix of the current key sequence is actually a
function key's escape sequence, we replace the suffix with the
function key's binding from Vfunction_key_map. Now keybuf
contains a new and different key sequence, so the echo area,
this_command_keys, and the submaps and defs arrays are wrong. In
this situation, we set mock_input to t, set t to 0, and jump to
restart_sequence; the loop will read keys from keybuf up until
mock_input, thus rebuilding the state; and then it will resume
reading characters from the keyboard. */
int mock_input = 0;
/* If the sequence is unbound in submaps[], then
keybuf[fkey.start..fkey.end-1] is a prefix in Vfunction_key_map,
and fkey.map is its binding.
These might be > t, indicating that all function key scanning
should hold off until t reaches them. We do this when we've just
recognized a function key, to avoid searching for the function
key's again in Vfunction_key_map. */
keyremap fkey;
/* Likewise, for key_translation_map and input-decode-map. */
keyremap keytran, indec;
/* True if we are trying to map a key by changing an upper-case
letter to lower case, or a shifted function key to an unshifted
one. */
bool shift_translated = false;
/* If we receive a `switch-frame' or `select-window' event in the middle of
a key sequence, we put it off for later.
While we're reading, we keep the event here. */
Lisp_Object delayed_switch_frame;
Lisp_Object original_uppercase UNINIT;
int original_uppercase_position = -1;
/* Gets around Microsoft compiler limitations. */
bool dummyflag = false;
struct buffer *starting_buffer;
/* List of events for which a fake prefix key has been generated. */
Lisp_Object fake_prefixed_keys = Qnil;
raw_keybuf_count = 0;
last_nonmenu_event = Qnil;
delayed_switch_frame = Qnil;
if (INTERACTIVE)
{
if (!NILP (prompt))
{
/* Install the string PROMPT as the beginning of the string
of echoing, so that it serves as a prompt for the next
character. */
kset_echo_prompt (current_kboard, prompt);
/* FIXME: This use of echo_now doesn't look quite right and is ugly
since it forces us to fiddle with current_kboard->immediate_echo
before and after. */
current_kboard->immediate_echo = false;
echo_now ();
if (!echo_keystrokes_p ())
current_kboard->immediate_echo = false;
}
else if (cursor_in_echo_area /* FIXME: Not sure why we test this here,
maybe we should just drop this test. */
&& echo_keystrokes_p ())
/* This doesn't put in a dash if the echo buffer is empty, so
you don't always see a dash hanging out in the minibuffer. */
echo_dash ();
}
/* Record the initial state of the echo area and this_command_keys;
we will need to restore them if we replay a key sequence. */
if (INTERACTIVE)
echo_start = echo_length ();
keys_start = this_command_key_count;
this_single_command_key_start = keys_start;
/* We jump here when we need to reinitialize fkey and keytran; this
happens if we switch keyboards between rescans. */
replay_entire_sequence:
indec.map = indec.parent = KVAR (current_kboard, Vinput_decode_map);
fkey.map = fkey.parent = KVAR (current_kboard, Vlocal_function_key_map);
keytran.map = keytran.parent = Vkey_translation_map;
indec.start = indec.end = 0;
fkey.start = fkey.end = 0;
keytran.start = keytran.end = 0;
/* We jump here when the key sequence has been thoroughly changed, and
we need to rescan it starting from the beginning. When we jump here,
keybuf[0..mock_input] holds the sequence we should reread. */
replay_sequence:
starting_buffer = current_buffer;
first_unbound = bufsize + 1;
/* Build our list of keymaps.
If we recognize a function key and replace its escape sequence in
keybuf with its symbol, or if the sequence starts with a mouse
click and we need to switch buffers, we jump back here to rebuild
the initial keymaps from the current buffer. */
current_binding = active_maps (first_event);
/* Start from the beginning in keybuf. */
t = 0;
/* These are no-ops the first time through, but if we restart, they
revert the echo area and this_command_keys to their original state. */
this_command_key_count = keys_start;
if (INTERACTIVE && t < mock_input)
echo_truncate (echo_start);
/* If the best binding for the current key sequence is a keymap, or
we may be looking at a function key's escape sequence, keep on
reading. */
while (!NILP (current_binding)
/* Keep reading as long as there's a prefix binding. */
? KEYMAPP (current_binding)
/* Don't return in the middle of a possible function key sequence,
if the only bindings we found were via case conversion.
Thus, if ESC O a has a function-key-map translation
and ESC o has a binding, don't return after ESC O,
so that we can translate ESC O plus the next character. */
: (/* indec.start < t || fkey.start < t || */ keytran.start < t))
{
Lisp_Object key;
bool used_mouse_menu = false;
/* Where the last real key started. If we need to throw away a
key that has expanded into more than one element of keybuf
(say, a mouse click on the mode line which is being treated
as [mode-line (mouse-...)], then we backtrack to this point
of keybuf. */
int last_real_key_start;
/* These variables are analogous to echo_start and keys_start;
while those allow us to restart the entire key sequence,
echo_local_start and keys_local_start allow us to throw away
just one key. */
ptrdiff_t echo_local_start UNINIT;
int keys_local_start;
Lisp_Object new_binding;
eassert (indec.end == t || (indec.end > t && indec.end <= mock_input));
eassert (indec.start <= indec.end);
eassert (fkey.start <= fkey.end);
eassert (keytran.start <= keytran.end);
/* key-translation-map is applied *after* function-key-map
which is itself applied *after* input-decode-map. */
eassert (fkey.end <= indec.start);
eassert (keytran.end <= fkey.start);
if (/* first_unbound < indec.start && first_unbound < fkey.start && */
first_unbound < keytran.start)
{ /* The prefix upto first_unbound has no binding and has
no translation left to do either, so we know it's unbound.
If we don't stop now, we risk staying here indefinitely
(if the user keeps entering fkey or keytran prefixes
like C-c ESC ESC ESC ESC ...) */
int i;
for (i = first_unbound + 1; i < t; i++)
keybuf[i - first_unbound - 1] = keybuf[i];
mock_input = t - first_unbound - 1;
indec.end = indec.start -= first_unbound + 1;
indec.map = indec.parent;
fkey.end = fkey.start -= first_unbound + 1;
fkey.map = fkey.parent;
keytran.end = keytran.start -= first_unbound + 1;
keytran.map = keytran.parent;
goto replay_sequence;
}
if (t >= bufsize)
error ("Key sequence too long");
if (INTERACTIVE)
echo_local_start = echo_length ();
keys_local_start = this_command_key_count;
replay_key:
/* These are no-ops, unless we throw away a keystroke below and
jumped back up to replay_key; in that case, these restore the
variables to their original state, allowing us to replay the
loop. */
if (INTERACTIVE && t < mock_input)
echo_truncate (echo_local_start);
this_command_key_count = keys_local_start;
/* By default, assume each event is "real". */
last_real_key_start = t;
/* Does mock_input indicate that we are re-reading a key sequence? */
if (t < mock_input)
{
key = keybuf[t];
add_command_key (key);
if (current_kboard->immediate_echo)
{
/* Set immediate_echo to false so as to force echo_now to
redisplay (it will set immediate_echo right back to true). */
current_kboard->immediate_echo = false;
echo_now ();
}
}
/* If not, we should actually read a character. */
else
{
{
KBOARD *interrupted_kboard = current_kboard;
struct frame *interrupted_frame = SELECTED_FRAME ();
/* Calling read_char with COMMANDFLAG = -2 avoids
redisplay in read_char and its subroutines. */
key = read_char (prevent_redisplay ? -2 : NILP (prompt),
current_binding, last_nonmenu_event,
&used_mouse_menu, NULL);
if ((INTEGERP (key) && XINT (key) == -2) /* wrong_kboard_jmpbuf */
/* When switching to a new tty (with a new keyboard),
read_char returns the new buffer, rather than -2
(Bug#5095). This is because `terminal-init-xterm'
calls read-char, which eats the wrong_kboard_jmpbuf
return. Any better way to fix this? -- cyd */
|| (interrupted_kboard != current_kboard))
{
bool found = false;
struct kboard *k;
for (k = all_kboards; k; k = k->next_kboard)
if (k == interrupted_kboard)
found = true;
if (!found)
{
/* Don't touch interrupted_kboard when it's been
deleted. */
delayed_switch_frame = Qnil;
goto replay_entire_sequence;
}
if (!NILP (delayed_switch_frame))
{
kset_kbd_queue
(interrupted_kboard,
Fcons (delayed_switch_frame,
KVAR (interrupted_kboard, kbd_queue)));
delayed_switch_frame = Qnil;
}
while (t > 0)
kset_kbd_queue
(interrupted_kboard,
Fcons (keybuf[--t], KVAR (interrupted_kboard, kbd_queue)));
/* If the side queue is non-empty, ensure it begins with a
switch-frame, so we'll replay it in the right context. */
if (CONSP (KVAR (interrupted_kboard, kbd_queue))
&& (key = XCAR (KVAR (interrupted_kboard, kbd_queue)),
!(EVENT_HAS_PARAMETERS (key)
&& EQ (EVENT_HEAD_KIND (EVENT_HEAD (key)),
Qswitch_frame))))
{
Lisp_Object frame;
XSETFRAME (frame, interrupted_frame);
kset_kbd_queue
(interrupted_kboard,
Fcons (make_lispy_switch_frame (frame),
KVAR (interrupted_kboard, kbd_queue)));
}
mock_input = 0;
goto replay_entire_sequence;
}
}
/* read_char returns t when it shows a menu and the user rejects it.
Just return -1. */
if (EQ (key, Qt))
{
unbind_to (count, Qnil);
return -1;
}
/* read_char returns -1 at the end of a macro.
Emacs 18 handles this by returning immediately with a
zero, so that's what we'll do. */
if (INTEGERP (key) && XINT (key) == -1)
{
t = 0;
/* The Microsoft C compiler can't handle the goto that
would go here. */
dummyflag = true;
break;
}
/* If the current buffer has been changed from under us, the
keymap may have changed, so replay the sequence. */
if (BUFFERP (key))
{
timer_resume_idle ();
mock_input = t;
/* Reset the current buffer from the selected window
in case something changed the former and not the latter.
This is to be more consistent with the behavior
of the command_loop_1. */
if (fix_current_buffer)
{
if (! FRAME_LIVE_P (XFRAME (selected_frame)))
Fkill_emacs (Qnil);
if (XBUFFER (XWINDOW (selected_window)->contents)
!= current_buffer)
Fset_buffer (XWINDOW (selected_window)->contents);
}
goto replay_sequence;
}
/* If we have a quit that was typed in another frame, and
quit_throw_to_read_char switched buffers,
replay to get the right keymap. */
if (INTEGERP (key)
&& XINT (key) == quit_char
&& current_buffer != starting_buffer)
{
GROW_RAW_KEYBUF;
ASET (raw_keybuf, raw_keybuf_count, key);
raw_keybuf_count++;
keybuf[t++] = key;
mock_input = t;
Vquit_flag = Qnil;
goto replay_sequence;
}
Vquit_flag = Qnil;
if (EVENT_HAS_PARAMETERS (key)
/* Either a `switch-frame' or a `select-window' event. */
&& EQ (EVENT_HEAD_KIND (EVENT_HEAD (key)), Qswitch_frame))
{
/* If we're at the beginning of a key sequence, and the caller
says it's okay, go ahead and return this event. If we're
in the midst of a key sequence, delay it until the end. */
if (t > 0 || !can_return_switch_frame)
{
delayed_switch_frame = key;
goto replay_key;
}
}
if (NILP (first_event))
{
first_event = key;
/* Even if first_event does not specify a particular
window/position, it's important to recompute the maps here
since a long time might have passed since we entered
read_key_sequence, and a timer (or process-filter or
special-event-map, ...) might have switched the current buffer
or the selected window from under us in the mean time. */
if (fix_current_buffer
&& (XBUFFER (XWINDOW (selected_window)->contents)
!= current_buffer))
Fset_buffer (XWINDOW (selected_window)->contents);
current_binding = active_maps (first_event);
}
GROW_RAW_KEYBUF;
ASET (raw_keybuf, raw_keybuf_count, key);
raw_keybuf_count++;
}
/* Clicks in non-text areas get prefixed by the symbol
in their CHAR-ADDRESS field. For example, a click on
the mode line is prefixed by the symbol `mode-line'.
Furthermore, key sequences beginning with mouse clicks
are read using the keymaps of the buffer clicked on, not
the current buffer. So we may have to switch the buffer
here.
When we turn one event into two events, we must make sure
that neither of the two looks like the original--so that,
if we replay the events, they won't be expanded again.
If not for this, such reexpansion could happen either here
or when user programs play with this-command-keys. */
if (EVENT_HAS_PARAMETERS (key))
{
Lisp_Object kind = EVENT_HEAD_KIND (EVENT_HEAD (key));
if (EQ (kind, Qmouse_click))
{
Lisp_Object window = POSN_WINDOW (EVENT_START (key));
Lisp_Object posn = POSN_POSN (EVENT_START (key));
if (CONSP (posn)
|| (!NILP (fake_prefixed_keys)
&& !NILP (Fmemq (key, fake_prefixed_keys))))
{
/* We're looking a second time at an event for which
we generated a fake prefix key. Set
last_real_key_start appropriately. */
if (t > 0)
last_real_key_start = t - 1;
}
if (last_real_key_start == 0)
{
/* Key sequences beginning with mouse clicks are
read using the keymaps in the buffer clicked on,
not the current buffer. If we're at the
beginning of a key sequence, switch buffers. */
if (WINDOWP (window)
&& BUFFERP (XWINDOW (window)->contents)
&& XBUFFER (XWINDOW (window)->contents) != current_buffer)
{
ASET (raw_keybuf, raw_keybuf_count, key);
raw_keybuf_count++;
keybuf[t] = key;
mock_input = t + 1;
/* Arrange to go back to the original buffer once we're
done reading the key sequence. Note that we can't
use save_excursion_{save,restore} here, because they
save point as well as the current buffer; we don't
want to save point, because redisplay may change it,
to accommodate a Fset_window_start or something. We
don't want to do this at the top of the function,
because we may get input from a subprocess which
wants to change the selected window and stuff (say,
emacsclient). */
record_unwind_current_buffer ();
if (! FRAME_LIVE_P (XFRAME (selected_frame)))
Fkill_emacs (Qnil);
set_buffer_internal (XBUFFER (XWINDOW (window)->contents));
goto replay_sequence;
}
}
/* Expand mode-line and scroll-bar events into two events:
use posn as a fake prefix key. */
if (SYMBOLP (posn)
&& (NILP (fake_prefixed_keys)
|| NILP (Fmemq (key, fake_prefixed_keys))))
{
if (bufsize - t <= 1)
error ("Key sequence too long");
keybuf[t] = posn;
keybuf[t + 1] = key;
mock_input = t + 2;
/* Record that a fake prefix key has been generated
for KEY. Don't modify the event; this would
prevent proper action when the event is pushed
back into unread-command-events. */
fake_prefixed_keys = Fcons (key, fake_prefixed_keys);
goto replay_key;
}
}
else if (CONSP (XCDR (key))
&& CONSP (EVENT_START (key))
&& CONSP (XCDR (EVENT_START (key))))
{
Lisp_Object posn;
posn = POSN_POSN (EVENT_START (key));
/* Handle menu-bar events:
insert the dummy prefix event `menu-bar'. */
if (EQ (posn, Qmenu_bar) || EQ (posn, Qtool_bar))
{
if (bufsize - t <= 1)
error ("Key sequence too long");
keybuf[t] = posn;
keybuf[t + 1] = key;
/* Zap the position in key, so we know that we've
expanded it, and don't try to do so again. */
POSN_SET_POSN (EVENT_START (key), list1 (posn));
mock_input = t + 2;
goto replay_sequence;
}
else if (CONSP (posn))
{
/* We're looking at the second event of a
sequence which we expanded before. Set
last_real_key_start appropriately. */
if (last_real_key_start == t && t > 0)
last_real_key_start = t - 1;
}
}
}
/* We have finally decided that KEY is something we might want
to look up. */
new_binding = follow_key (current_binding, key);
/* If KEY wasn't bound, we'll try some fallbacks. */
if (!NILP (new_binding))
/* This is needed for the following scenario:
event 0: a down-event that gets dropped by calling replay_key.
event 1: some normal prefix like C-h.
After event 0, first_unbound is 0, after event 1 indec.start,
fkey.start, and keytran.start are all 1, so when we see that
C-h is bound, we need to update first_unbound. */
first_unbound = max (t + 1, first_unbound);
else
{
Lisp_Object head;
/* Remember the position to put an upper bound on indec.start. */
first_unbound = min (t, first_unbound);
head = EVENT_HEAD (key);
if (SYMBOLP (head))
{
Lisp_Object breakdown;
int modifiers;
breakdown = parse_modifiers (head);
modifiers = XINT (XCAR (XCDR (breakdown)));
/* Attempt to reduce an unbound mouse event to a simpler
event that is bound:
Drags reduce to clicks.
Double-clicks reduce to clicks.
Triple-clicks reduce to double-clicks, then to clicks.
Up/Down-clicks are eliminated.
Double-downs reduce to downs, then are eliminated.
Triple-downs reduce to double-downs, then to downs,
then are eliminated. */
if (modifiers & (up_modifier | down_modifier
| drag_modifier
| double_modifier | triple_modifier))
{
while (modifiers & (up_modifier | down_modifier
| drag_modifier
| double_modifier | triple_modifier))
{
Lisp_Object new_head, new_click;
if (modifiers & triple_modifier)
modifiers ^= (double_modifier | triple_modifier);
else if (modifiers & double_modifier)
modifiers &= ~double_modifier;
else if (modifiers & drag_modifier)
modifiers &= ~drag_modifier;
else
{
/* Dispose of this `up/down' event by simply jumping
back to replay_key, to get another event.
Note that if this event came from mock input,
then just jumping back to replay_key will just
hand it to us again. So we have to wipe out any
mock input.
We could delete keybuf[t] and shift everything
after that to the left by one spot, but we'd also
have to fix up any variable that points into
keybuf, and shifting isn't really necessary
anyway.
Adding prefixes for non-textual mouse clicks
creates two characters of mock input, and both
must be thrown away. If we're only looking at
the prefix now, we can just jump back to
replay_key. On the other hand, if we've already
processed the prefix, and now the actual click
itself is giving us trouble, then we've lost the
state of the keymaps we want to backtrack to, and
we need to replay the whole sequence to rebuild
it.
Beyond that, only function key expansion could
create more than two keys, but that should never
generate mouse events, so it's okay to zero
mock_input in that case too.
FIXME: The above paragraph seems just plain
wrong, if you consider things like
xterm-mouse-mode. -stef
Isn't this just the most wonderful code ever? */
/* If mock_input > t + 1, the above simplification
will actually end up dropping keys on the floor.
This is probably OK for now, but even
if mock_input <= t + 1, we need to adjust indec,
fkey, and keytran.
Typical case [header-line down-mouse-N]:
mock_input = 2, t = 1, fkey.end = 1,
last_real_key_start = 0. */
if (indec.end > last_real_key_start)
{
indec.end = indec.start
= min (last_real_key_start, indec.start);
indec.map = indec.parent;
if (fkey.end > last_real_key_start)
{
fkey.end = fkey.start
= min (last_real_key_start, fkey.start);
fkey.map = fkey.parent;
if (keytran.end > last_real_key_start)
{
keytran.end = keytran.start
= min (last_real_key_start, keytran.start);
keytran.map = keytran.parent;
}
}
}
if (t == last_real_key_start)
{
mock_input = 0;
goto replay_key;
}
else
{
mock_input = last_real_key_start;
goto replay_sequence;
}
}
new_head
= apply_modifiers (modifiers, XCAR (breakdown));
new_click = list2 (new_head, EVENT_START (key));
/* Look for a binding for this new key. */
new_binding = follow_key (current_binding, new_click);
/* If that click is bound, go for it. */
if (!NILP (new_binding))
{
current_binding = new_binding;
key = new_click;
break;
}
/* Otherwise, we'll leave key set to the drag event. */
}
}
}
}
current_binding = new_binding;
keybuf[t++] = key;
/* Normally, last_nonmenu_event gets the previous key we read.
But when a mouse popup menu is being used,
we don't update last_nonmenu_event; it continues to hold the mouse
event that preceded the first level of menu. */
if (!used_mouse_menu)
last_nonmenu_event = key;
/* Record what part of this_command_keys is the current key sequence. */
this_single_command_key_start = this_command_key_count - t;
/* When 'input-method-function' called above causes events to be
put on 'unread-post-input-method-events', and as result
'reread' is set to 'true', the value of 't' can become larger
than 'this_command_key_count', because 'add_command_key' is
not called to update 'this_command_key_count'. If this
happens, 'this_single_command_key_start' will become negative
above, and any call to 'this-single-command-keys' will return
a garbled vector. See bug #20223 for one such situation.
Here we force 'this_single_command_key_start' to never become
negative, to avoid that. */
if (this_single_command_key_start < 0)
this_single_command_key_start = 0;
/* Look for this sequence in input-decode-map.
Scan from indec.end until we find a bound suffix. */
while (indec.end < t)
{
bool done;
int diff;
done = keyremap_step (keybuf, bufsize, &indec, max (t, mock_input),
1, &diff, prompt);
if (done)
{
mock_input = diff + max (t, mock_input);
goto replay_sequence;
}
}
if (!KEYMAPP (current_binding)
&& !test_undefined (current_binding)
&& indec.start >= t)
/* There is a binding and it's not a prefix.
(and it doesn't have any input-decode-map translation pending).
There is thus no function-key in this sequence.
Moving fkey.start is important in this case to allow keytran.start
to go over the sequence before we return (since we keep the
invariant that keytran.end <= fkey.start). */
{
if (fkey.start < t)
(fkey.start = fkey.end = t, fkey.map = fkey.parent);
}
else
/* If the sequence is unbound, see if we can hang a function key
off the end of it. */
/* Continue scan from fkey.end until we find a bound suffix. */
while (fkey.end < indec.start)
{
bool done;
int diff;
done = keyremap_step (keybuf, bufsize, &fkey,
max (t, mock_input),
/* If there's a binding (i.e.
first_binding >= nmaps) we don't want
to apply this function-key-mapping. */
fkey.end + 1 == t
&& (test_undefined (current_binding)),
&diff, prompt);
if (done)
{
mock_input = diff + max (t, mock_input);
/* Adjust the input-decode-map counters. */
indec.end += diff;
indec.start += diff;
goto replay_sequence;
}
}
/* Look for this sequence in key-translation-map.
Scan from keytran.end until we find a bound suffix. */
while (keytran.end < fkey.start)
{
bool done;
int diff;
done = keyremap_step (keybuf, bufsize, &keytran, max (t, mock_input),
1, &diff, prompt);
if (done)
{
mock_input = diff + max (t, mock_input);
/* Adjust the function-key-map and input-decode-map counters. */
indec.end += diff;
indec.start += diff;
fkey.end += diff;
fkey.start += diff;
goto replay_sequence;
}
}
/* If KEY is not defined in any of the keymaps,
and cannot be part of a function key or translation,
and is an upper case letter
use the corresponding lower-case letter instead. */
if (NILP (current_binding)
&& /* indec.start >= t && fkey.start >= t && */ keytran.start >= t
&& INTEGERP (key))
{
Lisp_Object new_key;
EMACS_INT k = XINT (key);
if (k & shift_modifier)
XSETINT (new_key, k & ~shift_modifier);
else if (CHARACTERP (make_number (k & ~CHAR_MODIFIER_MASK)))
{
int dc = downcase (k & ~CHAR_MODIFIER_MASK);
if (dc == (k & ~CHAR_MODIFIER_MASK))
goto not_upcase;
XSETINT (new_key, dc | (k & CHAR_MODIFIER_MASK));
}
else
goto not_upcase;
original_uppercase = key;
original_uppercase_position = t - 1;
/* We have to do this unconditionally, regardless of whether
the lower-case char is defined in the keymaps, because they
might get translated through function-key-map. */
keybuf[t - 1] = new_key;
mock_input = max (t, mock_input);
shift_translated = true;
goto replay_sequence;
}
not_upcase:
if (NILP (current_binding)
&& help_char_p (EVENT_HEAD (key)) && t > 1)
{
read_key_sequence_cmd = Vprefix_help_command;
/* The Microsoft C compiler can't handle the goto that
would go here. */
dummyflag = true;
break;
}
/* If KEY is not defined in any of the keymaps,
and cannot be part of a function key or translation,
and is a shifted function key,
use the corresponding unshifted function key instead. */
if (NILP (current_binding)
&& /* indec.start >= t && fkey.start >= t && */ keytran.start >= t)
{
Lisp_Object breakdown = parse_modifiers (key);
int modifiers
= CONSP (breakdown) ? (XINT (XCAR (XCDR (breakdown)))) : 0;
if (modifiers & shift_modifier
/* Treat uppercase keys as shifted. */
|| (INTEGERP (key)
&& (KEY_TO_CHAR (key)
< XCHAR_TABLE (BVAR (current_buffer, downcase_table))->header.size)
&& uppercasep (KEY_TO_CHAR (key))))
{
Lisp_Object new_key
= (modifiers & shift_modifier
? apply_modifiers (modifiers & ~shift_modifier,
XCAR (breakdown))
: make_number (downcase (KEY_TO_CHAR (key)) | modifiers));
original_uppercase = key;
original_uppercase_position = t - 1;
/* We have to do this unconditionally, regardless of whether
the lower-case char is defined in the keymaps, because they
might get translated through function-key-map. */
keybuf[t - 1] = new_key;
mock_input = max (t, mock_input);
/* Reset fkey (and consequently keytran) to apply
function-key-map on the result, so that S-backspace is
correctly mapped to DEL (via backspace). OTOH,
input-decode-map doesn't need to go through it again. */
fkey.start = fkey.end = 0;
keytran.start = keytran.end = 0;
shift_translated = true;
goto replay_sequence;
}
}
}
if (!dummyflag)
read_key_sequence_cmd = current_binding;
read_key_sequence_remapped
/* Remap command through active keymaps.
Do the remapping here, before the unbind_to so it uses the keymaps
of the appropriate buffer. */
= SYMBOLP (read_key_sequence_cmd)
? Fcommand_remapping (read_key_sequence_cmd, Qnil, Qnil)
: Qnil;
unread_switch_frame = delayed_switch_frame;
unbind_to (count, Qnil);
/* Don't downcase the last character if the caller says don't.
Don't downcase it if the result is undefined, either. */
if ((dont_downcase_last || NILP (current_binding))
&& t > 0
&& t - 1 == original_uppercase_position)
{
keybuf[t - 1] = original_uppercase;
shift_translated = false;
}
if (shift_translated)
Vthis_command_keys_shift_translated = Qt;
/* Occasionally we fabricate events, perhaps by expanding something
according to function-key-map, or by adding a prefix symbol to a
mouse click in the scroll bar or modeline. In this cases, return
the entire generated key sequence, even if we hit an unbound
prefix or a definition before the end. This means that you will
be able to push back the event properly, and also means that
read-key-sequence will always return a logical unit.
Better ideas? */
for (; t < mock_input; t++)
add_command_key (keybuf[t]);
echo_update ();
return t;
}
static Lisp_Object
read_key_sequence_vs (Lisp_Object prompt, Lisp_Object continue_echo,
Lisp_Object dont_downcase_last,
Lisp_Object can_return_switch_frame,
Lisp_Object cmd_loop, bool allow_string)
{
Lisp_Object keybuf[30];
int i;
ptrdiff_t count = SPECPDL_INDEX ();
if (!NILP (prompt))
CHECK_STRING (prompt);
maybe_quit ();
specbind (Qinput_method_exit_on_first_char,
(NILP (cmd_loop) ? Qt : Qnil));
specbind (Qinput_method_use_echo_area,
(NILP (cmd_loop) ? Qt : Qnil));
if (NILP (continue_echo))
{
this_command_key_count = 0;
this_single_command_key_start = 0;
}
#ifdef HAVE_WINDOW_SYSTEM
if (display_hourglass_p)
cancel_hourglass ();
#endif
i = read_key_sequence (keybuf, ARRAYELTS (keybuf),
prompt, ! NILP (dont_downcase_last),
! NILP (can_return_switch_frame), 0, 0);
#if 0 /* The following is fine for code reading a key sequence and
then proceeding with a lengthy computation, but it's not good
for code reading keys in a loop, like an input method. */
#ifdef HAVE_WINDOW_SYSTEM
if (display_hourglass_p)
start_hourglass ();
#endif
#endif
if (i == -1)
{
Vquit_flag = Qt;
maybe_quit ();
}
return unbind_to (count,
((allow_string ? make_event_array : Fvector)
(i, keybuf)));
}
DEFUN ("read-key-sequence", Fread_key_sequence, Sread_key_sequence, 1, 5, 0,
doc: /* Read a sequence of keystrokes and return as a string or vector.
The sequence is sufficient to specify a non-prefix command in the
current local and global maps.
First arg PROMPT is a prompt string. If nil, do not prompt specially.
Second (optional) arg CONTINUE-ECHO, if non-nil, means this key echos
as a continuation of the previous key.
The third (optional) arg DONT-DOWNCASE-LAST, if non-nil, means do not
convert the last event to lower case. (Normally any upper case event
is converted to lower case if the original event is undefined and the lower
case equivalent is defined.) A non-nil value is appropriate for reading
a key sequence to be defined.
A C-g typed while in this function is treated like any other character,
and `quit-flag' is not set.
If the key sequence starts with a mouse click, then the sequence is read
using the keymaps of the buffer of the window clicked in, not the buffer
of the selected window as normal.
`read-key-sequence' drops unbound button-down events, since you normally
only care about the click or drag events which follow them. If a drag
or multi-click event is unbound, but the corresponding click event would
be bound, `read-key-sequence' turns the event into a click event at the
drag's starting position. This means that you don't have to distinguish
between click and drag, double, or triple events unless you want to.
`read-key-sequence' prefixes mouse events on mode lines, the vertical
lines separating windows, and scroll bars with imaginary keys
`mode-line', `vertical-line', and `vertical-scroll-bar'.
Optional fourth argument CAN-RETURN-SWITCH-FRAME non-nil means that this
function will process a switch-frame event if the user switches frames
before typing anything. If the user switches frames in the middle of a
key sequence, or at the start of the sequence but CAN-RETURN-SWITCH-FRAME
is nil, then the event will be put off until after the current key sequence.
`read-key-sequence' checks `function-key-map' for function key
sequences, where they wouldn't conflict with ordinary bindings. See
`function-key-map' for more details.
The optional fifth argument CMD-LOOP, if non-nil, means
that this key sequence is being read by something that will
read commands one after another. It should be nil if the caller
will read just one key sequence. */)
(Lisp_Object prompt, Lisp_Object continue_echo, Lisp_Object dont_downcase_last, Lisp_Object can_return_switch_frame, Lisp_Object cmd_loop)
{
return read_key_sequence_vs (prompt, continue_echo, dont_downcase_last,
can_return_switch_frame, cmd_loop, true);
}
DEFUN ("read-key-sequence-vector", Fread_key_sequence_vector,
Sread_key_sequence_vector, 1, 5, 0,
doc: /* Like `read-key-sequence' but always return a vector. */)
(Lisp_Object prompt, Lisp_Object continue_echo, Lisp_Object dont_downcase_last, Lisp_Object can_return_switch_frame, Lisp_Object cmd_loop)
{
return read_key_sequence_vs (prompt, continue_echo, dont_downcase_last,
can_return_switch_frame, cmd_loop, false);
}
\f
/* Return true if input events are pending. */
bool
detect_input_pending (void)
{
return input_pending || get_input_pending (0);
}
/* Return true if input events other than mouse movements are
pending. */
bool
detect_input_pending_ignore_squeezables (void)
{
return input_pending || get_input_pending (READABLE_EVENTS_IGNORE_SQUEEZABLES);
}
/* Return true if input events are pending, and run any pending timers. */
bool
detect_input_pending_run_timers (bool do_display)
{
unsigned old_timers_run = timers_run;
if (!input_pending)
get_input_pending (READABLE_EVENTS_DO_TIMERS_NOW);
if (old_timers_run != timers_run && do_display)
redisplay_preserve_echo_area (8);
return input_pending;
}
/* This is called in some cases before a possible quit.
It cases the next call to detect_input_pending to recompute input_pending.
So calling this function unnecessarily can't do any harm. */
void
clear_input_pending (void)
{
input_pending = false;
}
/* Return true if there are pending requeued events.
This isn't used yet. The hope is to make wait_reading_process_output
call it, and return if it runs Lisp code that unreads something.
The problem is, kbd_buffer_get_event needs to be fixed to know what
to do in that case. It isn't trivial. */
bool
requeued_events_pending_p (void)
{
return (CONSP (Vunread_command_events));
}
DEFUN ("input-pending-p", Finput_pending_p, Sinput_pending_p, 0, 1, 0,
doc: /* Return t if command input is currently available with no wait.
Actually, the value is nil only if we can be sure that no input is available;
if there is a doubt, the value is t.
If CHECK-TIMERS is non-nil, timers that are ready to run will do so. */)
(Lisp_Object check_timers)
{
if (CONSP (Vunread_command_events)
|| !NILP (Vunread_post_input_method_events)
|| !NILP (Vunread_input_method_events))
return (Qt);
/* Process non-user-visible events (Bug#10195). */
process_special_events ();
return (get_input_pending ((NILP (check_timers)
? 0 : READABLE_EVENTS_DO_TIMERS_NOW)
| READABLE_EVENTS_FILTER_EVENTS)
? Qt : Qnil);
}
DEFUN ("recent-keys", Frecent_keys, Srecent_keys, 0, 1, 0,
doc: /* Return vector of last few events, not counting those from keyboard macros.
If INCLUDE-CMDS is non-nil, include the commands that were run,
represented as events of the form (nil . COMMAND). */)
(Lisp_Object include_cmds)
{
bool cmds = !NILP (include_cmds);
if (!total_keys
|| (cmds && total_keys < NUM_RECENT_KEYS))
return Fvector (total_keys,
XVECTOR (recent_keys)->contents);
else
{
Lisp_Object es = Qnil;
int i = (total_keys < NUM_RECENT_KEYS
? 0 : recent_keys_index);
eassert (recent_keys_index < NUM_RECENT_KEYS);
do
{
Lisp_Object e = AREF (recent_keys, i);
if (cmds || !CONSP (e) || !NILP (XCAR (e)))
es = Fcons (e, es);
if (++i >= NUM_RECENT_KEYS)
i = 0;
} while (i != recent_keys_index);
es = Fnreverse (es);
return Fvconcat (1, &es);
}
}
DEFUN ("this-command-keys", Fthis_command_keys, Sthis_command_keys, 0, 0, 0,
doc: /* Return the key sequence that invoked this command.
However, if the command has called `read-key-sequence', it returns
the last key sequence that has been read.
The value is a string or a vector.
See also `this-command-keys-vector'. */)
(void)
{
return make_event_array (this_command_key_count,
XVECTOR (this_command_keys)->contents);
}
DEFUN ("set--this-command-keys", Fset__this_command_keys,
Sset__this_command_keys, 1, 1, 0,
doc: /* Set the vector to be returned by `this-command-keys'.
The argument KEYS must be a string.
Internal use only. */)
(Lisp_Object keys)
{
CHECK_STRING (keys);
this_command_key_count = 0;
this_single_command_key_start = 0;
int key0 = SREF (keys, 0);
/* Kludge alert: this makes M-x be in the form expected by
novice.el. (248 is \370, a.k.a. "Meta-x".) Any better ideas? */
if (key0 == 248)
add_command_key (make_number ('x' | meta_modifier));
else
add_command_key (make_number (key0));
for (ptrdiff_t i = 1; i < SCHARS (keys); i++)
add_command_key (make_number (SREF (keys, i)));
return Qnil;
}
DEFUN ("this-command-keys-vector", Fthis_command_keys_vector, Sthis_command_keys_vector, 0, 0, 0,
doc: /* Return the key sequence that invoked this command, as a vector.
However, if the command has called `read-key-sequence', it returns
the last key sequence that has been read.
See also `this-command-keys'. */)
(void)
{
return Fvector (this_command_key_count,
XVECTOR (this_command_keys)->contents);
}
DEFUN ("this-single-command-keys", Fthis_single_command_keys,
Sthis_single_command_keys, 0, 0, 0,
doc: /* Return the key sequence that invoked this command.
More generally, it returns the last key sequence read, either by
the command loop or by `read-key-sequence'.
Unlike `this-command-keys', this function's value
does not include prefix arguments.
The value is always a vector. */)
(void)
{
return Fvector (this_command_key_count
- this_single_command_key_start,
(XVECTOR (this_command_keys)->contents
+ this_single_command_key_start));
}
DEFUN ("this-single-command-raw-keys", Fthis_single_command_raw_keys,
Sthis_single_command_raw_keys, 0, 0, 0,
doc: /* Return the raw events that were read for this command.
More generally, it returns the last key sequence read, either by
the command loop or by `read-key-sequence'.
Unlike `this-single-command-keys', this function's value
shows the events before all translations (except for input methods).
The value is always a vector. */)
(void)
{
return Fvector (raw_keybuf_count, XVECTOR (raw_keybuf)->contents);
}
DEFUN ("clear-this-command-keys", Fclear_this_command_keys,
Sclear_this_command_keys, 0, 1, 0,
doc: /* Clear out the vector that `this-command-keys' returns.
Also clear the record of the last 100 events, unless optional arg
KEEP-RECORD is non-nil. */)
(Lisp_Object keep_record)
{
int i;
this_command_key_count = 0;
if (NILP (keep_record))
{
for (i = 0; i < ASIZE (recent_keys); ++i)
ASET (recent_keys, i, Qnil);
total_keys = 0;
recent_keys_index = 0;
}
return Qnil;
}
DEFUN ("recursion-depth", Frecursion_depth, Srecursion_depth, 0, 0, 0,
doc: /* Return the current depth in recursive edits. */)
(void)
{
EMACS_INT sum;
INT_ADD_WRAPV (command_loop_level, minibuf_level, &sum);
return make_number (sum);
}
DEFUN ("open-dribble-file", Fopen_dribble_file, Sopen_dribble_file, 1, 1,
"FOpen dribble file: ",
doc: /* Start writing all keyboard characters to a dribble file called FILE.
If FILE is nil, close any open dribble file.
The file will be closed when Emacs exits.
Be aware that this records ALL characters you type!
This may include sensitive information such as passwords. */)
(Lisp_Object file)
{
if (dribble)
{
block_input ();
fclose (dribble);
unblock_input ();
dribble = 0;
}
if (!NILP (file))
{
int fd;
Lisp_Object encfile;
file = Fexpand_file_name (file, Qnil);
encfile = ENCODE_FILE (file);
fd = emacs_open (SSDATA (encfile), O_WRONLY | O_CREAT | O_EXCL, 0600);
if (fd < 0 && errno == EEXIST && unlink (SSDATA (encfile)) == 0)
fd = emacs_open (SSDATA (encfile), O_WRONLY | O_CREAT | O_EXCL, 0600);
dribble = fd < 0 ? 0 : fdopen (fd, "w");
if (dribble == 0)
report_file_error ("Opening dribble", file);
}
return Qnil;
}
DEFUN ("discard-input", Fdiscard_input, Sdiscard_input, 0, 0, 0,
doc: /* Discard the contents of the terminal input buffer.
Also end any kbd macro being defined. */)
(void)
{
if (!NILP (KVAR (current_kboard, defining_kbd_macro)))
{
/* Discard the last command from the macro. */
Fcancel_kbd_macro_events ();
end_kbd_macro ();
}
Vunread_command_events = Qnil;
discard_tty_input ();
kbd_fetch_ptr = kbd_store_ptr;
input_pending = false;
return Qnil;
}
\f
DEFUN ("suspend-emacs", Fsuspend_emacs, Ssuspend_emacs, 0, 1, "",
doc: /* Stop Emacs and return to superior process. You can resume later.
If `cannot-suspend' is non-nil, or if the system doesn't support job
control, run a subshell instead.
If optional arg STUFFSTRING is non-nil, its characters are stuffed
to be read as terminal input by Emacs's parent, after suspension.
Before suspending, run the normal hook `suspend-hook'.
After resumption run the normal hook `suspend-resume-hook'.
Some operating systems cannot stop the Emacs process and resume it later.
On such systems, Emacs starts a subshell instead of suspending. */)
(Lisp_Object stuffstring)
{
ptrdiff_t count = SPECPDL_INDEX ();
int old_height, old_width;
int width, height;
if (tty_list && tty_list->next)
error ("There are other tty frames open; close them before suspending Emacs");
if (!NILP (stuffstring))
CHECK_STRING (stuffstring);
run_hook (intern ("suspend-hook"));
get_tty_size (fileno (CURTTY ()->input), &old_width, &old_height);
reset_all_sys_modes ();
/* sys_suspend can get an error if it tries to fork a subshell
and the system resources aren't available for that. */
record_unwind_protect_void (init_all_sys_modes);
stuff_buffered_input (stuffstring);
if (cannot_suspend)
sys_subshell ();
else
sys_suspend ();
unbind_to (count, Qnil);
/* Check if terminal/window size has changed.
Note that this is not useful when we are running directly
with a window system; but suspend should be disabled in that case. */
get_tty_size (fileno (CURTTY ()->input), &width, &height);
if (width != old_width || height != old_height)
change_frame_size (SELECTED_FRAME (), width,
height - FRAME_MENU_BAR_LINES (SELECTED_FRAME ()),
0, 0, 0, 0);
run_hook (intern ("suspend-resume-hook"));
return Qnil;
}
/* If STUFFSTRING is a string, stuff its contents as pending terminal input.
Then in any case stuff anything Emacs has read ahead and not used. */
void
stuff_buffered_input (Lisp_Object stuffstring)
{
#ifdef SIGTSTP /* stuff_char is defined if SIGTSTP. */
register unsigned char *p;
if (STRINGP (stuffstring))
{
register ptrdiff_t count;
p = SDATA (stuffstring);
count = SBYTES (stuffstring);
while (count-- > 0)
stuff_char (*p++);
stuff_char ('\n');
}
/* Anything we have read ahead, put back for the shell to read. */
/* ?? What should this do when we have multiple keyboards??
Should we ignore anything that was typed in at the "wrong" kboard?
rms: we should stuff everything back into the kboard
it came from. */
for (; kbd_fetch_ptr != kbd_store_ptr; kbd_fetch_ptr++)
{
if (kbd_fetch_ptr == kbd_buffer + KBD_BUFFER_SIZE)
kbd_fetch_ptr = kbd_buffer;
if (kbd_fetch_ptr->kind == ASCII_KEYSTROKE_EVENT)
stuff_char (kbd_fetch_ptr->ie.code);
clear_event (kbd_fetch_ptr);
}
input_pending = false;
#endif /* SIGTSTP */
}
\f
void
set_waiting_for_input (struct timespec *time_to_clear)
{
input_available_clear_time = time_to_clear;
/* Tell handle_interrupt to throw back to read_char, */
waiting_for_input = true;
/* If handle_interrupt was called before and buffered a C-g,
make it run again now, to avoid timing error. */
if (!NILP (Vquit_flag))
quit_throw_to_read_char (0);
}
void
clear_waiting_for_input (void)
{
/* Tell handle_interrupt not to throw back to read_char, */
waiting_for_input = false;
input_available_clear_time = 0;
}
/* The SIGINT handler.
If we have a frame on the controlling tty, we assume that the
SIGINT was generated by C-g, so we call handle_interrupt.
Otherwise, tell maybe_quit to kill Emacs. */
static void
handle_interrupt_signal (int sig)
{
/* See if we have an active terminal on our controlling tty. */
struct terminal *terminal = get_named_terminal (DEV_TTY);
if (!terminal)
{
/* If there are no frames there, let's pretend that we are a
well-behaving UN*X program and quit. We must not call Lisp
in a signal handler, so tell maybe_quit to exit when it is
safe. */
Vquit_flag = Qkill_emacs;
}
else
{
/* Otherwise, the SIGINT was probably generated by C-g. */
/* Set internal_last_event_frame to the top frame of the
controlling tty, if we have a frame there. We disable the
interrupt key on secondary ttys, so the SIGINT must have come
from the controlling tty. */
internal_last_event_frame = terminal->display_info.tty->top_frame;
handle_interrupt (1);
}
}
static void
deliver_interrupt_signal (int sig)
{
deliver_process_signal (sig, handle_interrupt_signal);
}
/* Output MSG directly to standard output, without buffering. Ignore
failures. This is safe in a signal handler. */
static void
write_stdout (char const *msg)
{
ignore_value (write (STDOUT_FILENO, msg, strlen (msg)));
}
/* Read a byte from stdin, without buffering. Safe in signal handlers. */
static int
read_stdin (void)
{
char c;
return read (STDIN_FILENO, &c, 1) == 1 ? c : EOF;
}
/* If Emacs is stuck because `inhibit-quit' is true, then keep track
of the number of times C-g has been requested. If C-g is pressed
enough times, then quit anyway. See bug#6585. */
static int volatile force_quit_count;
/* This routine is called at interrupt level in response to C-g.
It is called from the SIGINT handler or kbd_buffer_store_event.
If `waiting_for_input' is non zero, then unless `echoing' is
nonzero, immediately throw back to read_char.
Otherwise it sets the Lisp variable quit-flag not-nil. This causes
eval to throw, when it gets a chance. If quit-flag is already
non-nil, it stops the job right away. */
static void
handle_interrupt (bool in_signal_handler)
{
char c;
cancel_echoing ();
/* XXX This code needs to be revised for multi-tty support. */
if (!NILP (Vquit_flag) && get_named_terminal (DEV_TTY))
{
if (! in_signal_handler)
{
/* If SIGINT isn't blocked, don't let us be interrupted by
a SIGINT. It might be harmful due to non-reentrancy
in I/O functions. */
sigset_t blocked;
sigemptyset (&blocked);
sigaddset (&blocked, SIGINT);
pthread_sigmask (SIG_BLOCK, &blocked, 0);
fflush_unlocked (stdout);
}
reset_all_sys_modes ();
#ifdef SIGTSTP
/*
* On systems which can suspend the current process and return to the original
* shell, this command causes the user to end up back at the shell.
* The "Auto-save" and "Abort" questions are not asked until
* the user elects to return to emacs, at which point he can save the current
* job and either dump core or continue.
*/
sys_suspend ();
#else
/* Perhaps should really fork an inferior shell?
But that would not provide any way to get back
to the original shell, ever. */
write_stdout ("No support for stopping a process"
" on this operating system;\n"
"you can continue or abort.\n");
#endif /* not SIGTSTP */
#ifdef MSDOS
/* We must remain inside the screen area when the internal terminal
is used. Note that [Enter] is not echoed by dos. */
cursor_to (SELECTED_FRAME (), 0, 0);
#endif
write_stdout ("Emacs is resuming after an emergency escape.\n");
/* It doesn't work to autosave while GC is in progress;
the code used for auto-saving doesn't cope with the mark bit. */
if (!gc_in_progress)
{
write_stdout ("Auto-save? (y or n) ");
c = read_stdin ();
if (c == 'y' || c == 'Y')
{
Fdo_auto_save (Qt, Qnil);
#ifdef MSDOS
write_stdout ("\r\nAuto-save done");
#else
write_stdout ("Auto-save done\n");
#endif
}
while (c != '\n')
c = read_stdin ();
}
else
{
/* During GC, it must be safe to reenable quitting again. */
Vinhibit_quit = Qnil;
write_stdout
(
#ifdef MSDOS
"\r\n"
#endif
"Garbage collection in progress; cannot auto-save now\r\n"
"but will instead do a real quit"
" after garbage collection ends\r\n");
}
#ifdef MSDOS
write_stdout ("\r\nAbort? (y or n) ");
#else
write_stdout ("Abort (and dump core)? (y or n) ");
#endif
c = read_stdin ();
if (c == 'y' || c == 'Y')
emacs_abort ();
while (c != '\n')
c = read_stdin ();
#ifdef MSDOS
write_stdout ("\r\nContinuing...\r\n");
#else /* not MSDOS */
write_stdout ("Continuing...\n");
#endif /* not MSDOS */
init_all_sys_modes ();
}
else
{
/* Request quit when it's safe. */
int count = NILP (Vquit_flag) ? 1 : force_quit_count + 1;
force_quit_count = count;
if (count == 3)
Vinhibit_quit = Qnil;
Vquit_flag = Qt;
}
pthread_sigmask (SIG_SETMASK, &empty_mask, 0);
/* TODO: The longjmp in this call throws the NS event loop integration off,
and it seems to do fine without this. Probably some attention
needs to be paid to the setting of waiting_for_input in
wait_reading_process_output() under HAVE_NS because of the call
to ns_select there (needed because otherwise events aren't picked up
outside of polling since we don't get SIGIO like X and we don't have a
separate event loop thread like W32. */
#ifndef HAVE_NS
if (waiting_for_input && !echoing)
quit_throw_to_read_char (in_signal_handler);
#endif
}
/* Handle a C-g by making read_char return C-g. */
static void
quit_throw_to_read_char (bool from_signal)
{
/* When not called from a signal handler it is safe to call
Lisp. */
if (!from_signal && EQ (Vquit_flag, Qkill_emacs))
Fkill_emacs (Qnil);
/* Prevent another signal from doing this before we finish. */
clear_waiting_for_input ();
input_pending = false;
Vunread_command_events = Qnil;
if (FRAMEP (internal_last_event_frame)
&& !EQ (internal_last_event_frame, selected_frame))
do_switch_frame (make_lispy_switch_frame (internal_last_event_frame),
0, 0, Qnil);
sys_longjmp (getcjmp, 1);
}
\f
DEFUN ("set-input-interrupt-mode", Fset_input_interrupt_mode,
Sset_input_interrupt_mode, 1, 1, 0,
doc: /* Set interrupt mode of reading keyboard input.
If INTERRUPT is non-nil, Emacs will use input interrupts;
otherwise Emacs uses CBREAK mode.
See also `current-input-mode'. */)
(Lisp_Object interrupt)
{
bool new_interrupt_input;
#ifdef USABLE_SIGIO
#ifdef HAVE_X_WINDOWS
if (x_display_list != NULL)
{
/* When using X, don't give the user a real choice,
because we haven't implemented the mechanisms to support it. */
new_interrupt_input = true;
}
else
#endif /* HAVE_X_WINDOWS */
new_interrupt_input = !NILP (interrupt);
#else /* not USABLE_SIGIO */
new_interrupt_input = false;
#endif /* not USABLE_SIGIO */
if (new_interrupt_input != interrupt_input)
{
#ifdef POLL_FOR_INPUT
stop_polling ();
#endif
#ifndef DOS_NT
/* this causes startup screen to be restored and messes with the mouse */
reset_all_sys_modes ();
interrupt_input = new_interrupt_input;
init_all_sys_modes ();
#else
interrupt_input = new_interrupt_input;
#endif
#ifdef POLL_FOR_INPUT
poll_suppress_count = 1;
start_polling ();
#endif
}
return Qnil;
}
DEFUN ("set-output-flow-control", Fset_output_flow_control, Sset_output_flow_control, 1, 2, 0,
doc: /* Enable or disable ^S/^Q flow control for output to TERMINAL.
If FLOW is non-nil, flow control is enabled and you cannot use C-s or
C-q in key sequences.
This setting only has an effect on tty terminals and only when
Emacs reads input in CBREAK mode; see `set-input-interrupt-mode'.
See also `current-input-mode'. */)
(Lisp_Object flow, Lisp_Object terminal)
{
struct terminal *t = decode_tty_terminal (terminal);
struct tty_display_info *tty;
if (!t)
return Qnil;
tty = t->display_info.tty;
if (tty->flow_control != !NILP (flow))
{
#ifndef DOS_NT
/* This causes startup screen to be restored and messes with the mouse. */
reset_sys_modes (tty);
#endif
tty->flow_control = !NILP (flow);
#ifndef DOS_NT
init_sys_modes (tty);
#endif
}
return Qnil;
}
DEFUN ("set-input-meta-mode", Fset_input_meta_mode, Sset_input_meta_mode, 1, 2, 0,
doc: /* Enable or disable 8-bit input on TERMINAL.
If META is t, Emacs will accept 8-bit input, and interpret the 8th
bit as the Meta modifier.
If META is nil, Emacs will ignore the top bit, on the assumption it is
parity.
Otherwise, Emacs will accept and pass through 8-bit input without
specially interpreting the top bit.
This setting only has an effect on tty terminal devices.
Optional parameter TERMINAL specifies the tty terminal device to use.
It may be a terminal object, a frame, or nil for the terminal used by
the currently selected frame.
See also `current-input-mode'. */)
(Lisp_Object meta, Lisp_Object terminal)
{
struct terminal *t = decode_tty_terminal (terminal);
struct tty_display_info *tty;
int new_meta;
if (!t)
return Qnil;
tty = t->display_info.tty;
if (NILP (meta))
new_meta = 0;
else if (EQ (meta, Qt))
new_meta = 1;
else
new_meta = 2;
if (tty->meta_key != new_meta)
{
#ifndef DOS_NT
/* this causes startup screen to be restored and messes with the mouse */
reset_sys_modes (tty);
#endif
tty->meta_key = new_meta;
#ifndef DOS_NT
init_sys_modes (tty);
#endif
}
return Qnil;
}
DEFUN ("set-quit-char", Fset_quit_char, Sset_quit_char, 1, 1, 0,
doc: /* Specify character used for quitting.
QUIT must be an ASCII character.
This function only has an effect on the controlling tty of the Emacs
process.
See also `current-input-mode'. */)
(Lisp_Object quit)
{
struct terminal *t = get_named_terminal (DEV_TTY);
struct tty_display_info *tty;
if (!t)
return Qnil;
tty = t->display_info.tty;
if (NILP (quit) || !INTEGERP (quit) || XINT (quit) < 0 || XINT (quit) > 0400)
error ("QUIT must be an ASCII character");
#ifndef DOS_NT
/* this causes startup screen to be restored and messes with the mouse */
reset_sys_modes (tty);
#endif
/* Don't let this value be out of range. */
quit_char = XINT (quit) & (tty->meta_key == 0 ? 0177 : 0377);
#ifndef DOS_NT
init_sys_modes (tty);
#endif
return Qnil;
}
DEFUN ("set-input-mode", Fset_input_mode, Sset_input_mode, 3, 4, 0,
doc: /* Set mode of reading keyboard input.
First arg INTERRUPT non-nil means use input interrupts;
nil means use CBREAK mode.
Second arg FLOW non-nil means use ^S/^Q flow control for output to terminal
(no effect except in CBREAK mode).
Third arg META t means accept 8-bit input (for a Meta key).
META nil means ignore the top bit, on the assumption it is parity.
Otherwise, accept 8-bit input and don't use the top bit for Meta.
Optional fourth arg QUIT if non-nil specifies character to use for quitting.
See also `current-input-mode'. */)
(Lisp_Object interrupt, Lisp_Object flow, Lisp_Object meta, Lisp_Object quit)
{
Fset_input_interrupt_mode (interrupt);
Fset_output_flow_control (flow, Qnil);
Fset_input_meta_mode (meta, Qnil);
if (!NILP (quit))
Fset_quit_char (quit);
return Qnil;
}
DEFUN ("current-input-mode", Fcurrent_input_mode, Scurrent_input_mode, 0, 0, 0,
doc: /* Return information about the way Emacs currently reads keyboard input.
The value is a list of the form (INTERRUPT FLOW META QUIT), where
INTERRUPT is non-nil if Emacs is using interrupt-driven input; if
nil, Emacs is using CBREAK mode.
FLOW is non-nil if Emacs uses ^S/^Q flow control for output to the
terminal; this does not apply if Emacs uses interrupt-driven input.
META is t if accepting 8-bit input with 8th bit as Meta flag.
META nil means ignoring the top bit, on the assumption it is parity.
META is neither t nor nil if accepting 8-bit input and using
all 8 bits as the character code.
QUIT is the character Emacs currently uses to quit.
The elements of this list correspond to the arguments of
`set-input-mode'. */)
(void)
{
struct frame *sf = XFRAME (selected_frame);
Lisp_Object interrupt = interrupt_input ? Qt : Qnil;
Lisp_Object flow, meta;
if (FRAME_TERMCAP_P (sf) || FRAME_MSDOS_P (sf))
{
flow = FRAME_TTY (sf)->flow_control ? Qt : Qnil;
meta = (FRAME_TTY (sf)->meta_key == 2
? make_number (0)
: (CURTTY ()->meta_key == 1 ? Qt : Qnil));
}
else
{
flow = Qnil;
meta = Qt;
}
Lisp_Object quit = make_number (quit_char);
return list4 (interrupt, flow, meta, quit);
}
DEFUN ("posn-at-x-y", Fposn_at_x_y, Sposn_at_x_y, 2, 4, 0,
doc: /* Return position information for pixel coordinates X and Y.
By default, X and Y are relative to text area of the selected window.
Optional third arg FRAME-OR-WINDOW non-nil specifies frame or window.
If optional fourth arg WHOLE is non-nil, X is relative to the left
edge of the window.
The return value is similar to a mouse click position:
(WINDOW AREA-OR-POS (X . Y) TIMESTAMP OBJECT POS (COL . ROW)
IMAGE (DX . DY) (WIDTH . HEIGHT))
The `posn-' functions access elements of such lists. */)
(Lisp_Object x, Lisp_Object y, Lisp_Object frame_or_window, Lisp_Object whole)
{
CHECK_NUMBER (x);
/* We allow X of -1, for the newline in a R2L line that overflowed
into the left fringe. */
if (XINT (x) != -1)
CHECK_NATNUM (x);
CHECK_NATNUM (y);
if (NILP (frame_or_window))
frame_or_window = selected_window;
if (WINDOWP (frame_or_window))
{
struct window *w = decode_live_window (frame_or_window);
XSETINT (x, (XINT (x)
+ WINDOW_LEFT_EDGE_X (w)
+ (NILP (whole)
? window_box_left_offset (w, TEXT_AREA)
: 0)));
XSETINT (y, WINDOW_TO_FRAME_PIXEL_Y (w, XINT (y)));
frame_or_window = w->frame;
}
CHECK_LIVE_FRAME (frame_or_window);
return make_lispy_position (XFRAME (frame_or_window), x, y, 0);
}
DEFUN ("posn-at-point", Fposn_at_point, Sposn_at_point, 0, 2, 0,
doc: /* Return position information for buffer position POS in WINDOW.
POS defaults to point in WINDOW; WINDOW defaults to the selected window.
Return nil if POS is not visible in WINDOW. Otherwise,
the return value is similar to that returned by `event-start' for
a mouse click at the upper left corner of the glyph corresponding
to POS:
(WINDOW AREA-OR-POS (X . Y) TIMESTAMP OBJECT POS (COL . ROW)
IMAGE (DX . DY) (WIDTH . HEIGHT))
The `posn-' functions access elements of such lists. */)
(Lisp_Object pos, Lisp_Object window)
{
Lisp_Object tem;
if (NILP (window))
window = selected_window;
tem = Fpos_visible_in_window_p (pos, window, Qt);
if (!NILP (tem))
{
Lisp_Object x = XCAR (tem);
Lisp_Object y = XCAR (XCDR (tem));
Lisp_Object aux_info = XCDR (XCDR (tem));
int y_coord = XINT (y);
/* Point invisible due to hscrolling? X can be -1 when a
newline in a R2L line overflows into the left fringe. */
if (XINT (x) < -1)
return Qnil;
if (!NILP (aux_info) && y_coord < 0)
{
int rtop = XINT (XCAR (aux_info));
y = make_number (y_coord + rtop);
}
tem = Fposn_at_x_y (x, y, window, Qnil);
}
return tem;
}
/* Set up a new kboard object with reasonable initial values.
TYPE is a window system for which this keyboard is used. */
static void
init_kboard (KBOARD *kb, Lisp_Object type)
{
kset_overriding_terminal_local_map (kb, Qnil);
kset_last_command (kb, Qnil);
kset_real_last_command (kb, Qnil);
kset_keyboard_translate_table (kb, Qnil);
kset_last_repeatable_command (kb, Qnil);
kset_prefix_arg (kb, Qnil);
kset_last_prefix_arg (kb, Qnil);
kset_kbd_queue (kb, Qnil);
kb->kbd_queue_has_data = false;
kb->immediate_echo = false;
kset_echo_string (kb, Qnil);
kset_echo_prompt (kb, Qnil);
kb->kbd_macro_buffer = 0;
kb->kbd_macro_bufsize = 0;
kset_defining_kbd_macro (kb, Qnil);
kset_last_kbd_macro (kb, Qnil);
kb->reference_count = 0;
kset_system_key_alist (kb, Qnil);
kset_system_key_syms (kb, Qnil);
kset_window_system (kb, type);
kset_input_decode_map (kb, Fmake_sparse_keymap (Qnil));
kset_local_function_key_map (kb, Fmake_sparse_keymap (Qnil));
Fset_keymap_parent (KVAR (kb, Vlocal_function_key_map), Vfunction_key_map);
kset_default_minibuffer_frame (kb, Qnil);
}
/* Allocate and basically initialize keyboard
object to use with window system TYPE. */
KBOARD *
allocate_kboard (Lisp_Object type)
{
KBOARD *kb = xmalloc (sizeof *kb);
init_kboard (kb, type);
kb->next_kboard = all_kboards;
all_kboards = kb;
return kb;
}
/*
* Destroy the contents of a kboard object, but not the object itself.
* We use this just before deleting it, or if we're going to initialize
* it a second time.
*/
static void
wipe_kboard (KBOARD *kb)
{
xfree (kb->kbd_macro_buffer);
}
/* Free KB and memory referenced from it. */
void
delete_kboard (KBOARD *kb)
{
KBOARD **kbp;
for (kbp = &all_kboards; *kbp != kb; kbp = &(*kbp)->next_kboard)
if (*kbp == NULL)
emacs_abort ();
*kbp = kb->next_kboard;
/* Prevent a dangling reference to KB. */
if (kb == current_kboard
&& FRAMEP (selected_frame)
&& FRAME_LIVE_P (XFRAME (selected_frame)))
{
current_kboard = FRAME_KBOARD (XFRAME (selected_frame));
single_kboard = false;
if (current_kboard == kb)
emacs_abort ();
}
wipe_kboard (kb);
xfree (kb);
}
void
init_keyboard (void)
{
/* This is correct before outermost invocation of the editor loop. */
command_loop_level = -1;
quit_char = Ctl ('g');
Vunread_command_events = Qnil;
timer_idleness_start_time = invalid_timespec ();
total_keys = 0;
recent_keys_index = 0;
kbd_fetch_ptr = kbd_buffer;
kbd_store_ptr = kbd_buffer;
do_mouse_tracking = Qnil;
input_pending = false;
interrupt_input_blocked = 0;
pending_signals = false;
/* This means that command_loop_1 won't try to select anything the first
time through. */
internal_last_event_frame = Qnil;
Vlast_event_frame = internal_last_event_frame;
current_kboard = initial_kboard;
/* Re-initialize the keyboard again. */
wipe_kboard (current_kboard);
/* A value of nil for Vwindow_system normally means a tty, but we also use
it for the initial terminal since there is no window system there. */
init_kboard (current_kboard, Qnil);
if (!noninteractive)
{
/* Before multi-tty support, these handlers used to be installed
only if the current session was a tty session. Now an Emacs
session may have multiple display types, so we always handle
SIGINT. There is special code in handle_interrupt_signal to exit
Emacs on SIGINT when there are no termcap frames on the
controlling terminal. */
struct sigaction action;
emacs_sigaction_init (&action, deliver_interrupt_signal);
sigaction (SIGINT, &action, 0);
#ifndef DOS_NT
/* For systems with SysV TERMIO, C-g is set up for both SIGINT and
SIGQUIT and we can't tell which one it will give us. */
sigaction (SIGQUIT, &action, 0);
#endif /* not DOS_NT */
}
#ifdef USABLE_SIGIO
if (!noninteractive)
{
struct sigaction action;
emacs_sigaction_init (&action, deliver_input_available_signal);
sigaction (SIGIO, &action, 0);
}
#endif
/* Use interrupt input by default, if it works and noninterrupt input
has deficiencies. */
#ifdef INTERRUPT_INPUT
interrupt_input = 1;
#else
interrupt_input = 0;
#endif
pthread_sigmask (SIG_SETMASK, &empty_mask, 0);
dribble = 0;
if (keyboard_init_hook)
(*keyboard_init_hook) ();
#ifdef POLL_FOR_INPUT
poll_timer = NULL;
poll_suppress_count = 1;
start_polling ();
#endif
}
/* This type's only use is in syms_of_keyboard, to put properties on the
event header symbols. */
struct event_head
{
short var;
short kind;
};
static const struct event_head head_table[] = {
{SYMBOL_INDEX (Qmouse_movement), SYMBOL_INDEX (Qmouse_movement)},
{SYMBOL_INDEX (Qscroll_bar_movement), SYMBOL_INDEX (Qmouse_movement)},
/* Some of the event heads. */
{SYMBOL_INDEX (Qswitch_frame), SYMBOL_INDEX (Qswitch_frame)},
{SYMBOL_INDEX (Qfocus_in), SYMBOL_INDEX (Qfocus_in)},
{SYMBOL_INDEX (Qfocus_out), SYMBOL_INDEX (Qfocus_out)},
{SYMBOL_INDEX (Qmove_frame), SYMBOL_INDEX (Qmove_frame)},
{SYMBOL_INDEX (Qdelete_frame), SYMBOL_INDEX (Qdelete_frame)},
{SYMBOL_INDEX (Qiconify_frame), SYMBOL_INDEX (Qiconify_frame)},
{SYMBOL_INDEX (Qmake_frame_visible), SYMBOL_INDEX (Qmake_frame_visible)},
/* `select-window' should be handled just like `switch-frame'
in read_key_sequence. */
{SYMBOL_INDEX (Qselect_window), SYMBOL_INDEX (Qswitch_frame)}
};
void
syms_of_keyboard (void)
{
pending_funcalls = Qnil;
staticpro (&pending_funcalls);
Vlispy_mouse_stem = build_pure_c_string ("mouse");
staticpro (&Vlispy_mouse_stem);
regular_top_level_message = build_pure_c_string ("Back to top level");
#ifdef HAVE_STACK_OVERFLOW_HANDLING
recover_top_level_message
= build_pure_c_string ("Re-entering top level after C stack overflow");
#endif
DEFVAR_LISP ("internal--top-level-message", Vinternal__top_level_message,
doc: /* Message displayed by `normal-top-level'. */);
Vinternal__top_level_message = regular_top_level_message;
/* Tool-bars. */
DEFSYM (QCimage, ":image");
DEFSYM (Qhelp_echo, "help-echo");
DEFSYM (QCrtl, ":rtl");
staticpro (&item_properties);
item_properties = Qnil;
staticpro (&tool_bar_item_properties);
tool_bar_item_properties = Qnil;
staticpro (&tool_bar_items_vector);
tool_bar_items_vector = Qnil;
DEFSYM (Qtimer_event_handler, "timer-event-handler");
/* Non-nil disable property on a command means do not execute it;
call disabled-command-function's value instead. */
DEFSYM (Qdisabled, "disabled");
DEFSYM (Qundefined, "undefined");
/* Hooks to run before and after each command. */
DEFSYM (Qpre_command_hook, "pre-command-hook");
DEFSYM (Qpost_command_hook, "post-command-hook");
DEFSYM (Qundo_auto__add_boundary, "undo-auto--add-boundary");
DEFSYM (Qundo_auto__undoably_changed_buffers,
"undo-auto--undoably-changed-buffers");
DEFSYM (Qdeferred_action_function, "deferred-action-function");
DEFSYM (Qdelayed_warnings_hook, "delayed-warnings-hook");
DEFSYM (Qfunction_key, "function-key");
/* The values of Qevent_kind properties. */
DEFSYM (Qmouse_click, "mouse-click");
DEFSYM (Qdrag_n_drop, "drag-n-drop");
DEFSYM (Qsave_session, "save-session");
DEFSYM (Qconfig_changed_event, "config-changed-event");
/* Menu and tool bar item parts. */
DEFSYM (Qmenu_enable, "menu-enable");
#ifdef HAVE_NTGUI
DEFSYM (Qlanguage_change, "language-change");
DEFSYM (Qend_session, "end-session");
#endif
#ifdef HAVE_DBUS
DEFSYM (Qdbus_event, "dbus-event");
#endif
#ifdef HAVE_XWIDGETS
DEFSYM (Qxwidget_event, "xwidget-event");
#endif
#ifdef USE_FILE_NOTIFY
DEFSYM (Qfile_notify, "file-notify");
#endif /* USE_FILE_NOTIFY */
/* Menu and tool bar item parts. */
DEFSYM (QCenable, ":enable");
DEFSYM (QCvisible, ":visible");
DEFSYM (QChelp, ":help");
DEFSYM (QCfilter, ":filter");
DEFSYM (QCbutton, ":button");
DEFSYM (QCkeys, ":keys");
DEFSYM (QCkey_sequence, ":key-sequence");
/* Non-nil disable property on a command means
do not execute it; call disabled-command-function's value instead. */
DEFSYM (QCtoggle, ":toggle");
DEFSYM (QCradio, ":radio");
DEFSYM (QClabel, ":label");
DEFSYM (QCvert_only, ":vert-only");
/* Symbols to use for parts of windows. */
DEFSYM (Qvertical_line, "vertical-line");
DEFSYM (Qright_divider, "right-divider");
DEFSYM (Qbottom_divider, "bottom-divider");
DEFSYM (Qmouse_fixup_help_message, "mouse-fixup-help-message");
DEFSYM (Qabove_handle, "above-handle");
DEFSYM (Qhandle, "handle");
DEFSYM (Qbelow_handle, "below-handle");
DEFSYM (Qup, "up");
DEFSYM (Qdown, "down");
DEFSYM (Qtop, "top");
DEFSYM (Qbottom, "bottom");
DEFSYM (Qend_scroll, "end-scroll");
DEFSYM (Qratio, "ratio");
DEFSYM (Qbefore_handle, "before-handle");
DEFSYM (Qhorizontal_handle, "horizontal-handle");
DEFSYM (Qafter_handle, "after-handle");
DEFSYM (Qleft, "left");
DEFSYM (Qright, "right");
DEFSYM (Qleftmost, "leftmost");
DEFSYM (Qrightmost, "rightmost");
/* Properties of event headers. */
DEFSYM (Qevent_kind, "event-kind");
DEFSYM (Qevent_symbol_elements, "event-symbol-elements");
/* An event header symbol HEAD may have a property named
Qevent_symbol_element_mask, which is of the form (BASE MODIFIERS);
BASE is the base, unmodified version of HEAD, and MODIFIERS is the
mask of modifiers applied to it. If present, this is used to help
speed up parse_modifiers. */
DEFSYM (Qevent_symbol_element_mask, "event-symbol-element-mask");
/* An unmodified event header BASE may have a property named
Qmodifier_cache, which is an alist mapping modifier masks onto
modified versions of BASE. If present, this helps speed up
apply_modifiers. */
DEFSYM (Qmodifier_cache, "modifier-cache");
DEFSYM (Qrecompute_lucid_menubar, "recompute-lucid-menubar");
DEFSYM (Qactivate_menubar_hook, "activate-menubar-hook");
DEFSYM (Qpolling_period, "polling-period");
DEFSYM (Qgui_set_selection, "gui-set-selection");
/* The primary selection. */
DEFSYM (QPRIMARY, "PRIMARY");
DEFSYM (Qhandle_switch_frame, "handle-switch-frame");
DEFSYM (Qhandle_select_window, "handle-select-window");
DEFSYM (Qinput_method_exit_on_first_char, "input-method-exit-on-first-char");
DEFSYM (Qinput_method_use_echo_area, "input-method-use-echo-area");
DEFSYM (Qhelp_form_show, "help-form-show");
DEFSYM (Qecho_keystrokes, "echo-keystrokes");
Fset (Qinput_method_exit_on_first_char, Qnil);
Fset (Qinput_method_use_echo_area, Qnil);
/* Symbols for dragging internal borders. */
DEFSYM (Qdrag_internal_border, "drag-internal-border");
DEFSYM (Qleft_edge, "left-edge");
DEFSYM (Qtop_left_corner, "top-left-corner");
DEFSYM (Qtop_edge, "top-edge");
DEFSYM (Qtop_right_corner, "top-right-corner");
DEFSYM (Qright_edge, "right-edge");
DEFSYM (Qbottom_right_corner, "bottom-right-corner");
DEFSYM (Qbottom_edge, "bottom-edge");
DEFSYM (Qbottom_left_corner, "bottom-left-corner");
/* Symbols to head events. */
DEFSYM (Qmouse_movement, "mouse-movement");
DEFSYM (Qscroll_bar_movement, "scroll-bar-movement");
DEFSYM (Qswitch_frame, "switch-frame");
DEFSYM (Qfocus_in, "focus-in");
DEFSYM (Qfocus_out, "focus-out");
DEFSYM (Qmove_frame, "move-frame");
DEFSYM (Qdelete_frame, "delete-frame");
DEFSYM (Qiconify_frame, "iconify-frame");
DEFSYM (Qmake_frame_visible, "make-frame-visible");
DEFSYM (Qselect_window, "select-window");
DEFSYM (Qselection_request, "selection-request");
{
int i;
for (i = 0; i < ARRAYELTS (head_table); i++)
{
const struct event_head *p = &head_table[i];
Lisp_Object var = builtin_lisp_symbol (p->var);
Lisp_Object kind = builtin_lisp_symbol (p->kind);
Fput (var, Qevent_kind, kind);
Fput (var, Qevent_symbol_elements, list1 (var));
}
}
button_down_location = Fmake_vector (make_number (5), Qnil);
staticpro (&button_down_location);
mouse_syms = Fmake_vector (make_number (5), Qnil);
staticpro (&mouse_syms);
wheel_syms = Fmake_vector (make_number (ARRAYELTS (lispy_wheel_names)),
Qnil);
staticpro (&wheel_syms);
{
int i;
int len = ARRAYELTS (modifier_names);
modifier_symbols = Fmake_vector (make_number (len), Qnil);
for (i = 0; i < len; i++)
if (modifier_names[i])
ASET (modifier_symbols, i, intern_c_string (modifier_names[i]));
staticpro (&modifier_symbols);
}
recent_keys = Fmake_vector (make_number (NUM_RECENT_KEYS), Qnil);
staticpro (&recent_keys);
this_command_keys = Fmake_vector (make_number (40), Qnil);
staticpro (&this_command_keys);
raw_keybuf = Fmake_vector (make_number (30), Qnil);
staticpro (&raw_keybuf);
DEFSYM (Qcommand_execute, "command-execute");
DEFSYM (Qinternal_echo_keystrokes_prefix, "internal-echo-keystrokes-prefix");
accent_key_syms = Qnil;
staticpro (&accent_key_syms);
func_key_syms = Qnil;
staticpro (&func_key_syms);
drag_n_drop_syms = Qnil;
staticpro (&drag_n_drop_syms);
unread_switch_frame = Qnil;
staticpro (&unread_switch_frame);
internal_last_event_frame = Qnil;
staticpro (&internal_last_event_frame);
read_key_sequence_cmd = Qnil;
staticpro (&read_key_sequence_cmd);
read_key_sequence_remapped = Qnil;
staticpro (&read_key_sequence_remapped);
menu_bar_one_keymap_changed_items = Qnil;
staticpro (&menu_bar_one_keymap_changed_items);
menu_bar_items_vector = Qnil;
staticpro (&menu_bar_items_vector);
help_form_saved_window_configs = Qnil;
staticpro (&help_form_saved_window_configs);
defsubr (&Scurrent_idle_time);
defsubr (&Sevent_symbol_parse_modifiers);
defsubr (&Sevent_convert_list);
defsubr (&Sread_key_sequence);
defsubr (&Sread_key_sequence_vector);
defsubr (&Srecursive_edit);
defsubr (&Strack_mouse);
defsubr (&Sinput_pending_p);
defsubr (&Srecent_keys);
defsubr (&Sthis_command_keys);
defsubr (&Sthis_command_keys_vector);
defsubr (&Sthis_single_command_keys);
defsubr (&Sthis_single_command_raw_keys);
defsubr (&Sset__this_command_keys);
defsubr (&Sclear_this_command_keys);
defsubr (&Ssuspend_emacs);
defsubr (&Sabort_recursive_edit);
defsubr (&Sexit_recursive_edit);
defsubr (&Srecursion_depth);
defsubr (&Scommand_error_default_function);
defsubr (&Stop_level);
defsubr (&Sdiscard_input);
defsubr (&Sopen_dribble_file);
defsubr (&Sset_input_interrupt_mode);
defsubr (&Sset_output_flow_control);
defsubr (&Sset_input_meta_mode);
defsubr (&Sset_quit_char);
defsubr (&Sset_input_mode);
defsubr (&Scurrent_input_mode);
defsubr (&Sposn_at_point);
defsubr (&Sposn_at_x_y);
DEFVAR_LISP ("last-command-event", last_command_event,
doc: /* Last input event that was part of a command. */);
DEFVAR_LISP ("last-nonmenu-event", last_nonmenu_event,
doc: /* Last input event in a command, except for mouse menu events.
Mouse menus give back keys that don't look like mouse events;
this variable holds the actual mouse event that led to the menu,
so that you can determine whether the command was run by mouse or not. */);
DEFVAR_LISP ("last-input-event", last_input_event,
doc: /* Last input event. */);
DEFVAR_LISP ("unread-command-events", Vunread_command_events,
doc: /* List of events to be read as the command input.
These events are processed first, before actual keyboard input.
Events read from this list are not normally added to `this-command-keys',
as they will already have been added once as they were read for the first time.
An element of the form (t . EVENT) forces EVENT to be added to that list. */);
Vunread_command_events = Qnil;
DEFVAR_LISP ("unread-post-input-method-events", Vunread_post_input_method_events,
doc: /* List of events to be processed as input by input methods.
These events are processed before `unread-command-events'
and actual keyboard input, but are not given to `input-method-function'. */);
Vunread_post_input_method_events = Qnil;
DEFVAR_LISP ("unread-input-method-events", Vunread_input_method_events,
doc: /* List of events to be processed as input by input methods.
These events are processed after `unread-command-events', but
before actual keyboard input.
If there's an active input method, the events are given to
`input-method-function'. */);
Vunread_input_method_events = Qnil;
DEFVAR_LISP ("meta-prefix-char", meta_prefix_char,
doc: /* Meta-prefix character code.
Meta-foo as command input turns into this character followed by foo. */);
XSETINT (meta_prefix_char, 033);
DEFVAR_KBOARD ("last-command", Vlast_command,
doc: /* The last command executed.
Normally a symbol with a function definition, but can be whatever was found
in the keymap, or whatever the variable `this-command' was set to by that
command.
The value `mode-exit' is special; it means that the previous command
read an event that told it to exit, and it did so and unread that event.
In other words, the present command is the event that made the previous
command exit.
The value `kill-region' is special; it means that the previous command
was a kill command.
`last-command' has a separate binding for each terminal device.
See Info node `(elisp)Multiple Terminals'. */);
DEFVAR_KBOARD ("real-last-command", Vreal_last_command,
doc: /* Same as `last-command', but never altered by Lisp code.
Taken from the previous value of `real-this-command'. */);
DEFVAR_KBOARD ("last-repeatable-command", Vlast_repeatable_command,
doc: /* Last command that may be repeated.
The last command executed that was not bound to an input event.
This is the command `repeat' will try to repeat.
Taken from a previous value of `real-this-command'. */);
DEFVAR_LISP ("this-command", Vthis_command,
doc: /* The command now being executed.
The command can set this variable; whatever is put here
will be in `last-command' during the following command. */);
Vthis_command = Qnil;
DEFVAR_LISP ("real-this-command", Vreal_this_command,
doc: /* This is like `this-command', except that commands should never modify it. */);
Vreal_this_command = Qnil;
DEFVAR_LISP ("this-command-keys-shift-translated",
Vthis_command_keys_shift_translated,
doc: /* Non-nil if the key sequence activating this command was shift-translated.
Shift-translation occurs when there is no binding for the key sequence
as entered, but a binding was found by changing an upper-case letter
to lower-case, or a shifted function key to an unshifted one. */);
Vthis_command_keys_shift_translated = Qnil;
DEFVAR_LISP ("this-original-command", Vthis_original_command,
doc: /* The command bound to the current key sequence before remapping.
It equals `this-command' if the original command was not remapped through
any of the active keymaps. Otherwise, the value of `this-command' is the
result of looking up the original command in the active keymaps. */);
Vthis_original_command = Qnil;
DEFVAR_INT ("auto-save-interval", auto_save_interval,
doc: /* Number of input events between auto-saves.
Zero means disable autosaving due to number of characters typed. */);
auto_save_interval = 300;
DEFVAR_LISP ("auto-save-timeout", Vauto_save_timeout,
doc: /* Number of seconds idle time before auto-save.
Zero or nil means disable auto-saving due to idleness.
After auto-saving due to this many seconds of idle time,
Emacs also does a garbage collection if that seems to be warranted. */);
XSETFASTINT (Vauto_save_timeout, 30);
DEFVAR_LISP ("echo-keystrokes", Vecho_keystrokes,
doc: /* Nonzero means echo unfinished commands after this many seconds of pause.
The value may be integer or floating point.
If the value is zero, don't echo at all. */);
Vecho_keystrokes = make_number (1);
DEFVAR_INT ("polling-period", polling_period,
doc: /* Interval between polling for input during Lisp execution.
The reason for polling is to make C-g work to stop a running program.
Polling is needed only when using X windows and SIGIO does not work.
Polling is automatically disabled in all other cases. */);
polling_period = 2;
DEFVAR_LISP ("double-click-time", Vdouble_click_time,
doc: /* Maximum time between mouse clicks to make a double-click.
Measured in milliseconds. The value nil means disable double-click
recognition; t means double-clicks have no time limit and are detected
by position only. */);
Vdouble_click_time = make_number (500);
DEFVAR_INT ("double-click-fuzz", double_click_fuzz,
doc: /* Maximum mouse movement between clicks to make a double-click.
On window-system frames, value is the number of pixels the mouse may have
moved horizontally or vertically between two clicks to make a double-click.
On non window-system frames, value is interpreted in units of 1/8 characters
instead of pixels.
This variable is also the threshold for motion of the mouse
to count as a drag. */);
double_click_fuzz = 3;
DEFVAR_INT ("num-input-keys", num_input_keys,
doc: /* Number of complete key sequences read as input so far.
This includes key sequences read from keyboard macros.
The number is effectively the number of interactive command invocations. */);
num_input_keys = 0;
DEFVAR_INT ("num-nonmacro-input-events", num_nonmacro_input_events,
doc: /* Number of input events read from the keyboard so far.
This does not include events generated by keyboard macros. */);
num_nonmacro_input_events = 0;
DEFVAR_LISP ("last-event-frame", Vlast_event_frame,
doc: /* The frame in which the most recently read event occurred.
If the last event came from a keyboard macro, this is set to `macro'. */);
Vlast_event_frame = Qnil;
/* This variable is set up in sysdep.c. */
DEFVAR_LISP ("tty-erase-char", Vtty_erase_char,
doc: /* The ERASE character as set by the user with stty. */);
DEFVAR_LISP ("help-char", Vhelp_char,
doc: /* Character to recognize as meaning Help.
When it is read, do `(eval help-form)', and display result if it's a string.
If the value of `help-form' is nil, this char can be read normally. */);
XSETINT (Vhelp_char, Ctl ('H'));
DEFVAR_LISP ("help-event-list", Vhelp_event_list,
doc: /* List of input events to recognize as meaning Help.
These work just like the value of `help-char' (see that). */);
Vhelp_event_list = Qnil;
DEFVAR_LISP ("help-form", Vhelp_form,
doc: /* Form to execute when character `help-char' is read.
If the form returns a string, that string is displayed.
If `help-form' is nil, the help char is not recognized. */);
Vhelp_form = Qnil;
DEFVAR_LISP ("prefix-help-command", Vprefix_help_command,
doc: /* Command to run when `help-char' character follows a prefix key.
This command is used only when there is no actual binding
for that character after that prefix key. */);
Vprefix_help_command = Qnil;
DEFVAR_LISP ("top-level", Vtop_level,
doc: /* Form to evaluate when Emacs starts up.
Useful to set before you dump a modified Emacs. */);
Vtop_level = Qnil;
XSYMBOL (Qtop_level)->declared_special = false;
DEFVAR_KBOARD ("keyboard-translate-table", Vkeyboard_translate_table,
doc: /* Translate table for local keyboard input, or nil.
If non-nil, the value should be a char-table. Each character read
from the keyboard is looked up in this char-table. If the value found
there is non-nil, then it is used instead of the actual input character.
The value can also be a string or vector, but this is considered obsolete.
If it is a string or vector of length N, character codes N and up are left
untranslated. In a vector, an element which is nil means "no translation".
This is applied to the characters supplied to input methods, not their
output. See also `translation-table-for-input'.
This variable has a separate binding for each terminal.
See Info node `(elisp)Multiple Terminals'. */);
DEFVAR_BOOL ("cannot-suspend", cannot_suspend,
doc: /* Non-nil means to always spawn a subshell instead of suspending.
\(Even if the operating system has support for stopping a process.) */);
cannot_suspend = false;
DEFVAR_BOOL ("menu-prompting", menu_prompting,
doc: /* Non-nil means prompt with menus when appropriate.
This is done when reading from a keymap that has a prompt string,
for elements that have prompt strings.
The menu is displayed on the screen
if X menus were enabled at configuration
time and the previous event was a mouse click prefix key.
Otherwise, menu prompting uses the echo area. */);
menu_prompting = true;
DEFVAR_LISP ("menu-prompt-more-char", menu_prompt_more_char,
doc: /* Character to see next line of menu prompt.
Type this character while in a menu prompt to rotate around the lines of it. */);
XSETINT (menu_prompt_more_char, ' ');
DEFVAR_INT ("extra-keyboard-modifiers", extra_keyboard_modifiers,
doc: /* A mask of additional modifier keys to use with every keyboard character.
Emacs applies the modifiers of the character stored here to each keyboard
character it reads. For example, after evaluating the expression
(setq extra-keyboard-modifiers ?\\C-x)
all input characters will have the control modifier applied to them.
Note that the character ?\\C-@, equivalent to the integer zero, does
not count as a control character; rather, it counts as a character
with no modifiers; thus, setting `extra-keyboard-modifiers' to zero
cancels any modification. */);
extra_keyboard_modifiers = 0;
DEFSYM (Qdeactivate_mark, "deactivate-mark");
DEFVAR_LISP ("deactivate-mark", Vdeactivate_mark,
doc: /* If an editing command sets this to t, deactivate the mark afterward.
The command loop sets this to nil before each command,
and tests the value when the command returns.
Buffer modification stores t in this variable. */);
Vdeactivate_mark = Qnil;
Fmake_variable_buffer_local (Qdeactivate_mark);
DEFVAR_LISP ("pre-command-hook", Vpre_command_hook,
doc: /* Normal hook run before each command is executed.
If an unhandled error happens in running this hook,
the function in which the error occurred is unconditionally removed, since
otherwise the error might happen repeatedly and make Emacs nonfunctional.
See also `post-command-hook'. */);
Vpre_command_hook = Qnil;
DEFVAR_LISP ("post-command-hook", Vpost_command_hook,
doc: /* Normal hook run after each command is executed.
If an unhandled error happens in running this hook,
the function in which the error occurred is unconditionally removed, since
otherwise the error might happen repeatedly and make Emacs nonfunctional.
It is a bad idea to use this hook for expensive processing. If
unavoidable, wrap your code in `(while-no-input (redisplay) CODE)' to
avoid making Emacs unresponsive while the user types.
See also `pre-command-hook'. */);
Vpost_command_hook = Qnil;
#if 0
DEFVAR_LISP ("echo-area-clear-hook", ...,
doc: /* Normal hook run when clearing the echo area. */);
#endif
DEFSYM (Qecho_area_clear_hook, "echo-area-clear-hook");
Fset (Qecho_area_clear_hook, Qnil);
DEFVAR_LISP ("lucid-menu-bar-dirty-flag", Vlucid_menu_bar_dirty_flag,
doc: /* Non-nil means menu bar, specified Lucid style, needs to be recomputed. */);
Vlucid_menu_bar_dirty_flag = Qnil;
DEFVAR_LISP ("menu-bar-final-items", Vmenu_bar_final_items,
doc: /* List of menu bar items to move to the end of the menu bar.
The elements of the list are event types that may have menu bar bindings. */);
Vmenu_bar_final_items = Qnil;
DEFVAR_LISP ("tool-bar-separator-image-expression", Vtool_bar_separator_image_expression,
doc: /* Expression evaluating to the image spec for a tool-bar separator.
This is used internally by graphical displays that do not render
tool-bar separators natively. Otherwise it is unused (e.g. on GTK). */);
Vtool_bar_separator_image_expression = Qnil;
DEFVAR_KBOARD ("overriding-terminal-local-map",
Voverriding_terminal_local_map,
doc: /* Per-terminal keymap that takes precedence over all other keymaps.
This variable is intended to let commands such as `universal-argument'
set up a different keymap for reading the next command.
`overriding-terminal-local-map' has a separate binding for each
terminal device. See Info node `(elisp)Multiple Terminals'. */);
DEFVAR_LISP ("overriding-local-map", Voverriding_local_map,
doc: /* Keymap that replaces (overrides) local keymaps.
If this variable is non-nil, Emacs looks up key bindings in this
keymap INSTEAD OF the keymap char property, minor mode maps, and the
buffer's local map. Hence, the only active keymaps would be
`overriding-terminal-local-map', this keymap, and `global-keymap', in
order of precedence. */);
Voverriding_local_map = Qnil;
DEFVAR_LISP ("overriding-local-map-menu-flag", Voverriding_local_map_menu_flag,
doc: /* Non-nil means `overriding-local-map' applies to the menu bar.
Otherwise, the menu bar continues to reflect the buffer's local map
and the minor mode maps regardless of `overriding-local-map'. */);
Voverriding_local_map_menu_flag = Qnil;
DEFVAR_LISP ("special-event-map", Vspecial_event_map,
doc: /* Keymap defining bindings for special events to execute at low level. */);
Vspecial_event_map = list1 (Qkeymap);
DEFVAR_LISP ("track-mouse", do_mouse_tracking,
doc: /* Non-nil means generate motion events for mouse motion. */);
DEFVAR_KBOARD ("system-key-alist", Vsystem_key_alist,
doc: /* Alist of system-specific X windows key symbols.
Each element should have the form (N . SYMBOL) where N is the
numeric keysym code (sans the \"system-specific\" bit 1<<28)
and SYMBOL is its name.
`system-key-alist' has a separate binding for each terminal device.
See Info node `(elisp)Multiple Terminals'. */);
DEFVAR_KBOARD ("local-function-key-map", Vlocal_function_key_map,
doc: /* Keymap that translates key sequences to key sequences during input.
This is used mainly for mapping key sequences into some preferred
key events (symbols).
The `read-key-sequence' function replaces any subsequence bound by
`local-function-key-map' with its binding. More precisely, when the
active keymaps have no binding for the current key sequence but
`local-function-key-map' binds a suffix of the sequence to a vector or
string, `read-key-sequence' replaces the matching suffix with its
binding, and continues with the new sequence.
If the binding is a function, it is called with one argument (the prompt)
and its return value (a key sequence) is used.
The events that come from bindings in `local-function-key-map' are not
themselves looked up in `local-function-key-map'.
For example, suppose `local-function-key-map' binds `ESC O P' to [f1].
Typing `ESC O P' to `read-key-sequence' would return [f1]. Typing
`C-x ESC O P' would return [?\\C-x f1]. If [f1] were a prefix key,
typing `ESC O P x' would return [f1 x].
`local-function-key-map' has a separate binding for each terminal
device. See Info node `(elisp)Multiple Terminals'. If you need to
define a binding on all terminals, change `function-key-map'
instead. Initially, `local-function-key-map' is an empty keymap that
has `function-key-map' as its parent on all terminal devices. */);
DEFVAR_KBOARD ("input-decode-map", Vinput_decode_map,
doc: /* Keymap that decodes input escape sequences.
This is used mainly for mapping ASCII function key sequences into
real Emacs function key events (symbols).
The `read-key-sequence' function replaces any subsequence bound by
`input-decode-map' with its binding. Contrary to `function-key-map',
this map applies its rebinding regardless of the presence of an ordinary
binding. So it is more like `key-translation-map' except that it applies
before `function-key-map' rather than after.
If the binding is a function, it is called with one argument (the prompt)
and its return value (a key sequence) is used.
The events that come from bindings in `input-decode-map' are not
themselves looked up in `input-decode-map'. */);
DEFVAR_LISP ("function-key-map", Vfunction_key_map,
doc: /* The parent keymap of all `local-function-key-map' instances.
Function key definitions that apply to all terminal devices should go
here. If a mapping is defined in both the current
`local-function-key-map' binding and this variable, then the local
definition will take precedence. */);
Vfunction_key_map = Fmake_sparse_keymap (Qnil);
DEFVAR_LISP ("key-translation-map", Vkey_translation_map,
doc: /* Keymap of key translations that can override keymaps.
This keymap works like `input-decode-map', but comes after `function-key-map'.
Another difference is that it is global rather than terminal-local. */);
Vkey_translation_map = Fmake_sparse_keymap (Qnil);
DEFVAR_LISP ("deferred-action-list", Vdeferred_action_list,
doc: /* List of deferred actions to be performed at a later time.
The precise format isn't relevant here; we just check whether it is nil. */);
Vdeferred_action_list = Qnil;
DEFVAR_LISP ("deferred-action-function", Vdeferred_action_function,
doc: /* Function to call to handle deferred actions, after each command.
This function is called with no arguments after each command
whenever `deferred-action-list' is non-nil. */);
Vdeferred_action_function = Qnil;
DEFVAR_LISP ("delayed-warnings-list", Vdelayed_warnings_list,
doc: /* List of warnings to be displayed after this command.
Each element must be a list (TYPE MESSAGE [LEVEL [BUFFER-NAME]]),
as per the args of `display-warning' (which see).
If this variable is non-nil, `delayed-warnings-hook' will be run
immediately after running `post-command-hook'. */);
Vdelayed_warnings_list = Qnil;
DEFVAR_LISP ("timer-list", Vtimer_list,
doc: /* List of active absolute time timers in order of increasing time. */);
Vtimer_list = Qnil;
DEFVAR_LISP ("timer-idle-list", Vtimer_idle_list,
doc: /* List of active idle-time timers in order of increasing time. */);
Vtimer_idle_list = Qnil;
DEFVAR_LISP ("input-method-function", Vinput_method_function,
doc: /* If non-nil, the function that implements the current input method.
It's called with one argument, a printing character that was just read.
\(That means a character with code 040...0176.)
Typically this function uses `read-event' to read additional events.
When it does so, it should first bind `input-method-function' to nil
so it will not be called recursively.
The function should return a list of zero or more events
to be used as input. If it wants to put back some events
to be reconsidered, separately, by the input method,
it can add them to the beginning of `unread-command-events'.
The input method function can find in `input-method-previous-message'
the previous echo area message.
The input method function should refer to the variables
`input-method-use-echo-area' and `input-method-exit-on-first-char'
for guidance on what to do. */);
Vinput_method_function = Qlist;
DEFVAR_LISP ("input-method-previous-message",
Vinput_method_previous_message,
doc: /* When `input-method-function' is called, hold the previous echo area message.
This variable exists because `read-event' clears the echo area
before running the input method. It is nil if there was no message. */);
Vinput_method_previous_message = Qnil;
DEFVAR_LISP ("show-help-function", Vshow_help_function,
doc: /* If non-nil, the function that implements the display of help.
It's called with one argument, the help string to display. */);
Vshow_help_function = Qnil;
DEFVAR_LISP ("disable-point-adjustment", Vdisable_point_adjustment,
doc: /* If non-nil, suppress point adjustment after executing a command.
After a command is executed, if point moved into a region that has
special properties (e.g. composition, display), Emacs adjusts point to
the boundary of the region. But when a command leaves this variable at
a non-nil value (e.g., with a setq), this point adjustment is suppressed.
This variable is set to nil before reading a command, and is checked
just after executing the command. */);
Vdisable_point_adjustment = Qnil;
DEFVAR_LISP ("global-disable-point-adjustment",
Vglobal_disable_point_adjustment,
doc: /* If non-nil, always suppress point adjustments.
The default value is nil, in which case point adjustments are
suppressed only after special commands that leave
`disable-point-adjustment' (which see) at a non-nil value. */);
Vglobal_disable_point_adjustment = Qnil;
DEFVAR_LISP ("minibuffer-message-timeout", Vminibuffer_message_timeout,
doc: /* How long to display an echo-area message when the minibuffer is active.
If the value is a number, it should be specified in seconds.
If the value is not a number, such messages never time out. */);
Vminibuffer_message_timeout = make_number (2);
DEFVAR_LISP ("throw-on-input", Vthrow_on_input,
doc: /* If non-nil, any keyboard input throws to this symbol.
The value of that variable is passed to `quit-flag' and later causes a
peculiar kind of quitting. */);
Vthrow_on_input = Qnil;
DEFVAR_LISP ("command-error-function", Vcommand_error_function,
doc: /* Function to output error messages.
Called with three arguments:
- the error data, a list of the form (SIGNALED-CONDITION . SIGNAL-DATA)
such as what `condition-case' would bind its variable to,
- the context (a string which normally goes at the start of the message),
- the Lisp function within which the error was signaled. */);
Vcommand_error_function = intern ("command-error-default-function");
DEFVAR_LISP ("enable-disabled-menus-and-buttons",
Venable_disabled_menus_and_buttons,
doc: /* If non-nil, don't ignore events produced by disabled menu items and tool-bar.
Help functions bind this to allow help on disabled menu items
and tool-bar buttons. */);
Venable_disabled_menus_and_buttons = Qnil;
DEFVAR_LISP ("select-active-regions",
Vselect_active_regions,
doc: /* If non-nil, an active region automatically sets the primary selection.
If the value is `only', only temporarily active regions (usually made
by mouse-dragging or shift-selection) set the window selection.
This takes effect only when Transient Mark mode is enabled. */);
Vselect_active_regions = Qt;
DEFVAR_LISP ("saved-region-selection",
Vsaved_region_selection,
doc: /* Contents of active region prior to buffer modification.
If `select-active-regions' is non-nil, Emacs sets this to the
text in the region before modifying the buffer. The next call to
the function `deactivate-mark' uses this to set the window selection. */);
Vsaved_region_selection = Qnil;
DEFVAR_LISP ("selection-inhibit-update-commands",
Vselection_inhibit_update_commands,
doc: /* List of commands which should not update the selection.
Normally, if `select-active-regions' is non-nil and the mark remains
active after a command (i.e. the mark was not deactivated), the Emacs
command loop sets the selection to the text in the region. However,
if the command is in this list, the selection is not updated. */);
Vselection_inhibit_update_commands
= list2 (Qhandle_switch_frame, Qhandle_select_window);
DEFVAR_LISP ("debug-on-event",
Vdebug_on_event,
doc: /* Enter debugger on this event. When Emacs
receives the special event specified by this variable, it will try to
break into the debugger as soon as possible instead of processing the
event normally through `special-event-map'.
Currently, the only supported values for this
variable are `sigusr1' and `sigusr2'. */);
Vdebug_on_event = intern_c_string ("sigusr2");
DEFVAR_BOOL ("attempt-stack-overflow-recovery",
attempt_stack_overflow_recovery,
doc: /* If non-nil, attempt to recover from C stack
overflow. This recovery is unsafe and may lead to deadlocks or data
corruption, but it usually works and may preserve modified buffers
that would otherwise be lost. If nil, treat stack overflow like any
other kind of crash. */);
attempt_stack_overflow_recovery = true;
DEFVAR_BOOL ("attempt-orderly-shutdown-on-fatal-signal",
attempt_orderly_shutdown_on_fatal_signal,
doc: /* If non-nil, attempt to perform an orderly
shutdown when Emacs receives a fatal signal (e.g., a crash).
This cleanup is unsafe and may lead to deadlocks or data corruption,
but it usually works and may preserve modified buffers that would
otherwise be lost. If nil, crash immediately in response to fatal
signals. */);
attempt_orderly_shutdown_on_fatal_signal = true;
/* Create the initial keyboard. Qt means 'unset'. */
initial_kboard = allocate_kboard (Qt);
DEFVAR_LISP ("while-no-input-ignore-events",
Vwhile_no_input_ignore_events,
doc: /* Ignored events from while-no-input. */);
Vwhile_no_input_ignore_events = Qnil;
}
void
keys_of_keyboard (void)
{
initial_define_key (global_map, Ctl ('Z'), "suspend-emacs");
initial_define_key (control_x_map, Ctl ('Z'), "suspend-emacs");
initial_define_key (meta_map, Ctl ('C'), "exit-recursive-edit");
initial_define_key (global_map, Ctl (']'), "abort-recursive-edit");
initial_define_key (meta_map, 'x', "execute-extended-command");
initial_define_lispy_key (Vspecial_event_map, "delete-frame",
"handle-delete-frame");
#ifdef HAVE_NTGUI
initial_define_lispy_key (Vspecial_event_map, "end-session",
"kill-emacs");
#endif
initial_define_lispy_key (Vspecial_event_map, "ns-put-working-text",
"ns-put-working-text");
initial_define_lispy_key (Vspecial_event_map, "ns-unput-working-text",
"ns-unput-working-text");
/* Here we used to use `ignore-event' which would simple set prefix-arg to
current-prefix-arg, as is done in `handle-switch-frame'.
But `handle-switch-frame is not run from the special-map.
Commands from that map are run in a special way that automatically
preserves the prefix-arg. Restoring the prefix arg here is not just
redundant but harmful:
- C-u C-x v =
- current-prefix-arg is set to non-nil, prefix-arg is set to nil.
- after the first prompt, the exit-minibuffer-hook is run which may
iconify a frame and thus push a `iconify-frame' event.
- after running exit-minibuffer-hook, current-prefix-arg is
restored to the non-nil value it had before the prompt.
- we enter the second prompt.
current-prefix-arg is non-nil, prefix-arg is nil.
- before running the first real event, we run the special iconify-frame
event, but we pass the `special' arg to command-execute so
current-prefix-arg and prefix-arg are left untouched.
- here we foolishly copy the non-nil current-prefix-arg to prefix-arg.
- the next key event will have a spuriously non-nil current-prefix-arg. */
initial_define_lispy_key (Vspecial_event_map, "iconify-frame",
"ignore");
initial_define_lispy_key (Vspecial_event_map, "make-frame-visible",
"ignore");
/* Handling it at such a low-level causes read_key_sequence to get
* confused because it doesn't realize that the current_buffer was
* changed by read_char.
*
* initial_define_lispy_key (Vspecial_event_map, "select-window",
* "handle-select-window"); */
initial_define_lispy_key (Vspecial_event_map, "save-session",
"handle-save-session");
#ifdef HAVE_DBUS
/* Define a special event which is raised for dbus callback
functions. */
initial_define_lispy_key (Vspecial_event_map, "dbus-event",
"dbus-handle-event");
#endif
#ifdef USE_FILE_NOTIFY
/* Define a special event which is raised for notification callback
functions. */
initial_define_lispy_key (Vspecial_event_map, "file-notify",
"file-notify-handle-event");
#endif /* USE_FILE_NOTIFY */
initial_define_lispy_key (Vspecial_event_map, "config-changed-event",
"ignore");
#if defined (WINDOWSNT)
initial_define_lispy_key (Vspecial_event_map, "language-change",
"ignore");
#endif
initial_define_lispy_key (Vspecial_event_map, "focus-in",
"handle-focus-in");
initial_define_lispy_key (Vspecial_event_map, "focus-out",
"handle-focus-out");
initial_define_lispy_key (Vspecial_event_map, "move-frame",
"handle-move-frame");
}
/* Mark the pointers in the kboard objects.
Called by Fgarbage_collect. */
void
mark_kboards (void)
{
KBOARD *kb;
Lisp_Object *p;
for (kb = all_kboards; kb; kb = kb->next_kboard)
{
if (kb->kbd_macro_buffer)
for (p = kb->kbd_macro_buffer; p < kb->kbd_macro_ptr; p++)
mark_object (*p);
mark_object (KVAR (kb, Voverriding_terminal_local_map));
mark_object (KVAR (kb, Vlast_command));
mark_object (KVAR (kb, Vreal_last_command));
mark_object (KVAR (kb, Vkeyboard_translate_table));
mark_object (KVAR (kb, Vlast_repeatable_command));
mark_object (KVAR (kb, Vprefix_arg));
mark_object (KVAR (kb, Vlast_prefix_arg));
mark_object (KVAR (kb, kbd_queue));
mark_object (KVAR (kb, defining_kbd_macro));
mark_object (KVAR (kb, Vlast_kbd_macro));
mark_object (KVAR (kb, Vsystem_key_alist));
mark_object (KVAR (kb, system_key_syms));
mark_object (KVAR (kb, Vwindow_system));
mark_object (KVAR (kb, Vinput_decode_map));
mark_object (KVAR (kb, Vlocal_function_key_map));
mark_object (KVAR (kb, Vdefault_minibuffer_frame));
mark_object (KVAR (kb, echo_string));
mark_object (KVAR (kb, echo_prompt));
}
{
union buffered_input_event *event;
for (event = kbd_fetch_ptr; event != kbd_store_ptr; event++)
{
if (event == kbd_buffer + KBD_BUFFER_SIZE)
event = kbd_buffer;
/* These two special event types has no Lisp_Objects to mark. */
if (event->kind != SELECTION_REQUEST_EVENT
&& event->kind != SELECTION_CLEAR_EVENT)
{
mark_object (event->ie.x);
mark_object (event->ie.y);
mark_object (event->ie.frame_or_window);
mark_object (event->ie.arg);
}
}
}
}
|