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
| | /* Lisp object printing and output streams.
Copyright (C) 1985, 1986, 1988, 1993, 1994, 1995, 1997, 1998, 1999,
2000, 2001, 2003, 2004, 2005 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 2, 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; see the file COPYING. If not, write to
the Free Software Foundation, Inc., 59 Temple Place - Suite 330,
Boston, MA 02111-1307, USA. */
#include <config.h>
#include <stdio.h>
#include "lisp.h"
#include "buffer.h"
#include "charset.h"
#include "keyboard.h"
#include "frame.h"
#include "window.h"
#include "process.h"
#include "dispextern.h"
#include "termchar.h"
#include "intervals.h"
Lisp_Object Vstandard_output, Qstandard_output;
Lisp_Object Qtemp_buffer_setup_hook;
/* These are used to print like we read. */
extern Lisp_Object Qbackquote, Qcomma, Qcomma_at, Qcomma_dot, Qfunction;
Lisp_Object Vfloat_output_format, Qfloat_output_format;
/* Work around a problem that happens because math.h on hpux 7
defines two static variables--which, in Emacs, are not really static,
because `static' is defined as nothing. The problem is that they are
defined both here and in lread.c.
These macros prevent the name conflict. */
#if defined (HPUX) && !defined (HPUX8)
#define _MAXLDBL print_maxldbl
#define _NMAXLDBL print_nmaxldbl
#endif
#include <math.h>
#if STDC_HEADERS
#include <float.h>
#endif
/* Default to values appropriate for IEEE floating point. */
#ifndef FLT_RADIX
#define FLT_RADIX 2
#endif
#ifndef DBL_MANT_DIG
#define DBL_MANT_DIG 53
#endif
#ifndef DBL_DIG
#define DBL_DIG 15
#endif
#ifndef DBL_MIN
#define DBL_MIN 2.2250738585072014e-308
#endif
#ifdef DBL_MIN_REPLACEMENT
#undef DBL_MIN
#define DBL_MIN DBL_MIN_REPLACEMENT
#endif
/* Define DOUBLE_DIGITS_BOUND, an upper bound on the number of decimal digits
needed to express a float without losing information.
The general-case formula is valid for the usual case, IEEE floating point,
but many compilers can't optimize the formula to an integer constant,
so make a special case for it. */
#if FLT_RADIX == 2 && DBL_MANT_DIG == 53
#define DOUBLE_DIGITS_BOUND 17 /* IEEE floating point */
#else
#define DOUBLE_DIGITS_BOUND ((int) ceil (log10 (pow (FLT_RADIX, DBL_MANT_DIG))))
#endif
/* Avoid actual stack overflow in print. */
int print_depth;
/* Nonzero if inside outputting backquote in old style. */
int old_backquote_output;
/* Detect most circularities to print finite output. */
#define PRINT_CIRCLE 200
Lisp_Object being_printed[PRINT_CIRCLE];
/* When printing into a buffer, first we put the text in this
block, then insert it all at once. */
char *print_buffer;
/* Size allocated in print_buffer. */
int print_buffer_size;
/* Chars stored in print_buffer. */
int print_buffer_pos;
/* Bytes stored in print_buffer. */
int print_buffer_pos_byte;
/* Maximum length of list to print in full; noninteger means
effectively infinity */
Lisp_Object Vprint_length;
/* Maximum depth of list to print in full; noninteger means
effectively infinity. */
Lisp_Object Vprint_level;
/* Nonzero means print newlines in strings as \n. */
int print_escape_newlines;
/* Nonzero means to print single-byte non-ascii characters in strings as
octal escapes. */
int print_escape_nonascii;
/* Nonzero means to print multibyte characters in strings as hex escapes. */
int print_escape_multibyte;
Lisp_Object Qprint_escape_newlines;
Lisp_Object Qprint_escape_multibyte, Qprint_escape_nonascii;
/* Nonzero means print (quote foo) forms as 'foo, etc. */
int print_quoted;
/* Non-nil means print #: before uninterned symbols. */
Lisp_Object Vprint_gensym;
/* Non-nil means print recursive structures using #n= and #n# syntax. */
Lisp_Object Vprint_circle;
/* Non-nil means keep continuous number for #n= and #n# syntax
between several print functions. */
Lisp_Object Vprint_continuous_numbering;
/* Vprint_number_table is a vector like [OBJ1 STAT1 OBJ2 STAT2 ...],
where OBJn are objects going to be printed, and STATn are their status,
which may be different meanings during process. See the comments of
the functions print and print_preprocess for details.
print_number_index keeps the last position the next object should be added,
twice of which is the actual vector position in Vprint_number_table. */
int print_number_index;
Lisp_Object Vprint_number_table;
/* PRINT_NUMBER_OBJECT returns the I'th object in Vprint_number_table TABLE.
PRINT_NUMBER_STATUS returns the status of the I'th object in TABLE.
See the comment of the variable Vprint_number_table. */
#define PRINT_NUMBER_OBJECT(table,i) XVECTOR ((table))->contents[(i) * 2]
#define PRINT_NUMBER_STATUS(table,i) XVECTOR ((table))->contents[(i) * 2 + 1]
/* Nonzero means print newline to stdout before next minibuffer message.
Defined in xdisp.c */
extern int noninteractive_need_newline;
extern int minibuffer_auto_raise;
#ifdef MAX_PRINT_CHARS
static int print_chars;
static int max_print;
#endif /* MAX_PRINT_CHARS */
void print_interval ();
\f
/* Low level output routines for characters and strings */
/* Lisp functions to do output using a stream
must have the stream in a variable called printcharfun
and must start with PRINTPREPARE, end with PRINTFINISH,
and use PRINTDECLARE to declare common variables.
Use PRINTCHAR to output one character,
or call strout to output a block of characters. */
#define PRINTDECLARE \
struct buffer *old = current_buffer; \
int old_point = -1, start_point = -1; \
int old_point_byte = -1, start_point_byte = -1; \
int specpdl_count = SPECPDL_INDEX (); \
int free_print_buffer = 0; \
int multibyte = !NILP (current_buffer->enable_multibyte_characters); \
Lisp_Object original
#define PRINTPREPARE \
original = printcharfun; \
if (NILP (printcharfun)) printcharfun = Qt; \
if (BUFFERP (printcharfun)) \
{ \
if (XBUFFER (printcharfun) != current_buffer) \
Fset_buffer (printcharfun); \
printcharfun = Qnil; \
} \
if (MARKERP (printcharfun)) \
{ \
EMACS_INT marker_pos; \
if (!(XMARKER (printcharfun)->buffer)) \
error ("Marker does not point anywhere"); \
if (XMARKER (printcharfun)->buffer != current_buffer) \
set_buffer_internal (XMARKER (printcharfun)->buffer); \
marker_pos = marker_position (printcharfun); \
if (marker_pos < BEGV || marker_pos > ZV) \
error ("Marker is outside the accessible part of the buffer"); \
old_point = PT; \
old_point_byte = PT_BYTE; \
SET_PT_BOTH (marker_pos, \
marker_byte_position (printcharfun)); \
start_point = PT; \
start_point_byte = PT_BYTE; \
printcharfun = Qnil; \
} \
if (NILP (printcharfun)) \
{ \
Lisp_Object string; \
if (NILP (current_buffer->enable_multibyte_characters) \
&& ! print_escape_multibyte) \
specbind (Qprint_escape_multibyte, Qt); \
if (! NILP (current_buffer->enable_multibyte_characters) \
&& ! print_escape_nonascii) \
specbind (Qprint_escape_nonascii, Qt); \
if (print_buffer != 0) \
{ \
string = make_string_from_bytes (print_buffer, \
print_buffer_pos, \
print_buffer_pos_byte); \
record_unwind_protect (print_unwind, string); \
} \
else \
{ \
print_buffer_size = 1000; \
print_buffer = (char *) xmalloc (print_buffer_size); \
free_print_buffer = 1; \
} \
print_buffer_pos = 0; \
print_buffer_pos_byte = 0; \
} \
if (EQ (printcharfun, Qt) && ! noninteractive) \
setup_echo_area_for_printing (multibyte);
#define PRINTFINISH \
if (NILP (printcharfun)) \
{ \
if (print_buffer_pos != print_buffer_pos_byte \
&& NILP (current_buffer->enable_multibyte_characters)) \
{ \
unsigned char *temp \
= (unsigned char *) alloca (print_buffer_pos + 1); \
copy_text (print_buffer, temp, print_buffer_pos_byte, \
1, 0); \
insert_1_both (temp, print_buffer_pos, \
print_buffer_pos, 0, 1, 0); \
} \
else \
insert_1_both (print_buffer, print_buffer_pos, \
print_buffer_pos_byte, 0, 1, 0); \
} \
if (free_print_buffer) \
{ \
xfree (print_buffer); \
print_buffer = 0; \
} \
unbind_to (specpdl_count, Qnil); \
if (MARKERP (original)) \
set_marker_both (original, Qnil, PT, PT_BYTE); \
if (old_point >= 0) \
SET_PT_BOTH (old_point + (old_point >= start_point \
? PT - start_point : 0), \
old_point_byte + (old_point_byte >= start_point_byte \
? PT_BYTE - start_point_byte : 0)); \
if (old != current_buffer) \
set_buffer_internal (old);
#define PRINTCHAR(ch) printchar (ch, printcharfun)
/* This is used to restore the saved contents of print_buffer
when there is a recursive call to print. */
static Lisp_Object
print_unwind (saved_text)
Lisp_Object saved_text;
{
bcopy (SDATA (saved_text), print_buffer, SCHARS (saved_text));
return Qnil;
}
/* Print character CH using method FUN. FUN nil means print to
print_buffer. FUN t means print to echo area or stdout if
non-interactive. If FUN is neither nil nor t, call FUN with CH as
argument. */
static void
printchar (ch, fun)
unsigned int ch;
Lisp_Object fun;
{
#ifdef MAX_PRINT_CHARS
if (max_print)
print_chars++;
#endif /* MAX_PRINT_CHARS */
if (!NILP (fun) && !EQ (fun, Qt))
call1 (fun, make_number (ch));
else
{
unsigned char str[MAX_MULTIBYTE_LENGTH];
int len = CHAR_STRING (ch, str);
QUIT;
if (NILP (fun))
{
if (print_buffer_pos_byte + len >= print_buffer_size)
print_buffer = (char *) xrealloc (print_buffer,
print_buffer_size *= 2);
bcopy (str, print_buffer + print_buffer_pos_byte, len);
print_buffer_pos += 1;
print_buffer_pos_byte += len;
}
else if (noninteractive)
{
fwrite (str, 1, len, stdout);
noninteractive_need_newline = 1;
}
else
{
int multibyte_p
= !NILP (current_buffer->enable_multibyte_characters);
setup_echo_area_for_printing (multibyte_p);
insert_char (ch);
message_dolog (str, len, 0, multibyte_p);
}
}
}
/* Output SIZE characters, SIZE_BYTE bytes from string PTR using
method PRINTCHARFUN. If SIZE < 0, use the string length of PTR for
both SIZE and SIZE_BYTE. PRINTCHARFUN nil means output to
print_buffer. PRINTCHARFUN t means output to the echo area or to
stdout if non-interactive. If neither nil nor t, call Lisp
function PRINTCHARFUN for each character printed. MULTIBYTE
non-zero means PTR contains multibyte characters. */
static void
strout (ptr, size, size_byte, printcharfun, multibyte)
char *ptr;
int size, size_byte;
Lisp_Object printcharfun;
int multibyte;
{
if (size < 0)
size_byte = size = strlen (ptr);
if (NILP (printcharfun))
{
if (print_buffer_pos_byte + size_byte > print_buffer_size)
{
print_buffer_size = print_buffer_size * 2 + size_byte;
print_buffer = (char *) xrealloc (print_buffer,
print_buffer_size);
}
bcopy (ptr, print_buffer + print_buffer_pos_byte, size_byte);
print_buffer_pos += size;
print_buffer_pos_byte += size_byte;
#ifdef MAX_PRINT_CHARS
if (max_print)
print_chars += size;
#endif /* MAX_PRINT_CHARS */
}
else if (noninteractive && EQ (printcharfun, Qt))
{
fwrite (ptr, 1, size_byte, stdout);
noninteractive_need_newline = 1;
}
else if (EQ (printcharfun, Qt))
{
/* Output to echo area. We're trying to avoid a little overhead
here, that's the reason we don't call printchar to do the
job. */
int i;
int multibyte_p
= !NILP (current_buffer->enable_multibyte_characters);
setup_echo_area_for_printing (multibyte_p);
message_dolog (ptr, size_byte, 0, multibyte_p);
if (size == size_byte)
{
for (i = 0; i < size; ++i)
insert_char ((unsigned char )*ptr++);
}
else
{
int len;
for (i = 0; i < size_byte; i += len)
{
int ch = STRING_CHAR_AND_LENGTH (ptr + i, size_byte - i, len);
insert_char (ch);
}
}
#ifdef MAX_PRINT_CHARS
if (max_print)
print_chars += size;
#endif /* MAX_PRINT_CHARS */
}
else
{
/* PRINTCHARFUN is a Lisp function. */
int i = 0;
if (size == size_byte)
{
while (i < size_byte)
{
int ch = ptr[i++];
PRINTCHAR (ch);
}
}
else
{
while (i < size_byte)
{
/* Here, we must convert each multi-byte form to the
corresponding character code before handing it to
PRINTCHAR. */
int len;
int ch = STRING_CHAR_AND_LENGTH (ptr + i, size_byte - i, len);
PRINTCHAR (ch);
i += len;
}
}
}
}
/* Print the contents of a string STRING using PRINTCHARFUN.
It isn't safe to use strout in many cases,
because printing one char can relocate. */
static void
print_string (string, printcharfun)
Lisp_Object string;
Lisp_Object printcharfun;
{
if (EQ (printcharfun, Qt) || NILP (printcharfun))
{
int chars;
if (STRING_MULTIBYTE (string))
chars = SCHARS (string);
else if (EQ (printcharfun, Qt)
? ! NILP (buffer_defaults.enable_multibyte_characters)
: ! NILP (current_buffer->enable_multibyte_characters))
{
/* If unibyte string STRING contains 8-bit codes, we must
convert STRING to a multibyte string containing the same
character codes. */
Lisp_Object newstr;
int bytes;
chars = SBYTES (string);
bytes = parse_str_to_multibyte (SDATA (string), chars);
if (chars < bytes)
{
newstr = make_uninit_multibyte_string (chars, bytes);
bcopy (SDATA (string), SDATA (newstr), chars);
str_to_multibyte (SDATA (newstr), bytes, chars);
string = newstr;
}
}
else
chars = SBYTES (string);
/* strout is safe for output to a frame (echo area) or to print_buffer. */
strout (SDATA (string),
chars, SBYTES (string),
printcharfun, STRING_MULTIBYTE (string));
}
else
{
/* Otherwise, string may be relocated by printing one char.
So re-fetch the string address for each character. */
int i;
int size = SCHARS (string);
int size_byte = SBYTES (string);
struct gcpro gcpro1;
GCPRO1 (string);
if (size == size_byte)
for (i = 0; i < size; i++)
PRINTCHAR (SREF (string, i));
else
for (i = 0; i < size_byte; )
{
/* Here, we must convert each multi-byte form to the
corresponding character code before handing it to PRINTCHAR. */
int len;
int ch = STRING_CHAR_AND_LENGTH (SDATA (string) + i,
size_byte - i, len);
if (!CHAR_VALID_P (ch, 0))
{
ch = SREF (string, i);
len = 1;
}
PRINTCHAR (ch);
i += len;
}
UNGCPRO;
}
}
\f
DEFUN ("write-char", Fwrite_char, Swrite_char, 1, 2, 0,
doc: /* Output character CHARACTER to stream PRINTCHARFUN.
PRINTCHARFUN defaults to the value of `standard-output' (which see). */)
(character, printcharfun)
Lisp_Object character, printcharfun;
{
PRINTDECLARE;
if (NILP (printcharfun))
printcharfun = Vstandard_output;
CHECK_NUMBER (character);
PRINTPREPARE;
PRINTCHAR (XINT (character));
PRINTFINISH;
return character;
}
/* Used from outside of print.c to print a block of SIZE
single-byte chars at DATA on the default output stream.
Do not use this on the contents of a Lisp string. */
void
write_string (data, size)
char *data;
int size;
{
PRINTDECLARE;
Lisp_Object printcharfun;
printcharfun = Vstandard_output;
PRINTPREPARE;
strout (data, size, size, printcharfun, 0);
PRINTFINISH;
}
/* Used from outside of print.c to print a block of SIZE
single-byte chars at DATA on a specified stream PRINTCHARFUN.
Do not use this on the contents of a Lisp string. */
void
write_string_1 (data, size, printcharfun)
char *data;
int size;
Lisp_Object printcharfun;
{
PRINTDECLARE;
PRINTPREPARE;
strout (data, size, size, printcharfun, 0);
PRINTFINISH;
}
void
temp_output_buffer_setup (bufname)
const char *bufname;
{
int count = SPECPDL_INDEX ();
register struct buffer *old = current_buffer;
register Lisp_Object buf;
record_unwind_protect (set_buffer_if_live, Fcurrent_buffer ());
Fset_buffer (Fget_buffer_create (build_string (bufname)));
Fkill_all_local_variables ();
delete_all_overlays (current_buffer);
current_buffer->directory = old->directory;
current_buffer->read_only = Qnil;
current_buffer->filename = Qnil;
current_buffer->undo_list = Qt;
eassert (current_buffer->overlays_before == NULL);
eassert (current_buffer->overlays_after == NULL);
current_buffer->enable_multibyte_characters
= buffer_defaults.enable_multibyte_characters;
specbind (Qinhibit_read_only, Qt);
specbind (Qinhibit_modification_hooks, Qt);
Ferase_buffer ();
XSETBUFFER (buf, current_buffer);
Frun_hooks (1, &Qtemp_buffer_setup_hook);
unbind_to (count, Qnil);
specbind (Qstandard_output, buf);
}
Lisp_Object
internal_with_output_to_temp_buffer (bufname, function, args)
const char *bufname;
Lisp_Object (*function) P_ ((Lisp_Object));
Lisp_Object args;
{
int count = SPECPDL_INDEX ();
Lisp_Object buf, val;
struct gcpro gcpro1;
GCPRO1 (args);
record_unwind_protect (Fset_buffer, Fcurrent_buffer ());
temp_output_buffer_setup (bufname);
buf = Vstandard_output;
UNGCPRO;
val = (*function) (args);
GCPRO1 (val);
temp_output_buffer_show (buf);
UNGCPRO;
return unbind_to (count, val);
}
DEFUN ("with-output-to-temp-buffer",
Fwith_output_to_temp_buffer, Swith_output_to_temp_buffer,
1, UNEVALLED, 0,
doc: /* Bind `standard-output' to buffer BUFNAME, eval BODY, then show that buffer.
The buffer is cleared out initially, and marked as unmodified when done.
All output done by BODY is inserted in that buffer by default.
The buffer is displayed in another window, but not selected.
The value of the last form in BODY is returned.
If BODY does not finish normally, the buffer BUFNAME is not displayed.
The hook `temp-buffer-setup-hook' is run before BODY,
with the buffer BUFNAME temporarily current.
The hook `temp-buffer-show-hook' is run after the buffer is displayed,
with the buffer temporarily current, and the window that was used
to display it temporarily selected.
If variable `temp-buffer-show-function' is non-nil, call it at the end
to get the buffer displayed instead of just displaying the non-selected
buffer and calling the hook. It gets one argument, the buffer to display.
usage: (with-output-to-temp-buffer BUFNAME BODY ...) */)
(args)
Lisp_Object args;
{
struct gcpro gcpro1;
Lisp_Object name;
int count = SPECPDL_INDEX ();
Lisp_Object buf, val;
GCPRO1(args);
name = Feval (Fcar (args));
CHECK_STRING (name);
temp_output_buffer_setup (SDATA (name));
buf = Vstandard_output;
UNGCPRO;
val = Fprogn (XCDR (args));
GCPRO1 (val);
temp_output_buffer_show (buf);
UNGCPRO;
return unbind_to (count, val);
}
\f
static void print ();
static void print_preprocess ();
static void print_preprocess_string ();
static void print_object ();
DEFUN ("terpri", Fterpri, Sterpri, 0, 1, 0,
doc: /* Output a newline to stream PRINTCHARFUN.
If PRINTCHARFUN is omitted or nil, the value of `standard-output' is used. */)
(printcharfun)
Lisp_Object printcharfun;
{
PRINTDECLARE;
if (NILP (printcharfun))
printcharfun = Vstandard_output;
PRINTPREPARE;
PRINTCHAR ('\n');
PRINTFINISH;
return Qt;
}
DEFUN ("prin1", Fprin1, Sprin1, 1, 2, 0,
doc: /* Output the printed representation of OBJECT, any Lisp object.
Quoting characters are printed when needed to make output that `read'
can handle, whenever this is possible. For complex objects, the behavior
is controlled by `print-level' and `print-length', which see.
OBJECT is any of the Lisp data types: a number, a string, a symbol,
a list, a buffer, a window, a frame, etc.
A printed representation of an object is text which describes that object.
Optional argument PRINTCHARFUN is the output stream, which can be one
of these:
- a buffer, in which case output is inserted into that buffer at point;
- a marker, in which case output is inserted at marker's position;
- a function, in which case that function is called once for each
character of OBJECT's printed representation;
- a symbol, in which case that symbol's function definition is called; or
- t, in which case the output is displayed in the echo area.
If PRINTCHARFUN is omitted, the value of `standard-output' (which see)
is used instead. */)
(object, printcharfun)
Lisp_Object object, printcharfun;
{
PRINTDECLARE;
#ifdef MAX_PRINT_CHARS
max_print = 0;
#endif /* MAX_PRINT_CHARS */
if (NILP (printcharfun))
printcharfun = Vstandard_output;
PRINTPREPARE;
print (object, printcharfun, 1);
PRINTFINISH;
return object;
}
/* a buffer which is used to hold output being built by prin1-to-string */
Lisp_Object Vprin1_to_string_buffer;
DEFUN ("prin1-to-string", Fprin1_to_string, Sprin1_to_string, 1, 2, 0,
doc: /* Return a string containing the printed representation of OBJECT.
OBJECT can be any Lisp object. This function outputs quoting characters
when necessary to make output that `read' can handle, whenever possible,
unless the optional second argument NOESCAPE is non-nil.
OBJECT is any of the Lisp data types: a number, a string, a symbol,
a list, a buffer, a window, a frame, etc.
A printed representation of an object is text which describes that object. */)
(object, noescape)
Lisp_Object object, noescape;
{
Lisp_Object printcharfun;
/* struct gcpro gcpro1, gcpro2; */
Lisp_Object save_deactivate_mark;
int count = specpdl_ptr - specpdl;
struct buffer *previous;
specbind (Qinhibit_modification_hooks, Qt);
{
PRINTDECLARE;
/* Save and restore this--we are altering a buffer
but we don't want to deactivate the mark just for that.
No need for specbind, since errors deactivate the mark. */
save_deactivate_mark = Vdeactivate_mark;
/* GCPRO2 (object, save_deactivate_mark); */
abort_on_gc++;
printcharfun = Vprin1_to_string_buffer;
PRINTPREPARE;
print (object, printcharfun, NILP (noescape));
/* Make Vprin1_to_string_buffer be the default buffer after PRINTFINSH */
PRINTFINISH;
}
previous = current_buffer;
set_buffer_internal (XBUFFER (Vprin1_to_string_buffer));
object = Fbuffer_string ();
if (SBYTES (object) == SCHARS (object))
STRING_SET_UNIBYTE (object);
/* Note that this won't make prepare_to_modify_buffer call
ask-user-about-supersession-threat because this buffer
does not visit a file. */
Ferase_buffer ();
set_buffer_internal (previous);
Vdeactivate_mark = save_deactivate_mark;
/* UNGCPRO; */
abort_on_gc--;
return unbind_to (count, object);
}
DEFUN ("princ", Fprinc, Sprinc, 1, 2, 0,
doc: /* Output the printed representation of OBJECT, any Lisp object.
No quoting characters are used; no delimiters are printed around
the contents of strings.
OBJECT is any of the Lisp data types: a number, a string, a symbol,
a list, a buffer, a window, a frame, etc.
A printed representation of an object is text which describes that object.
Optional argument PRINTCHARFUN is the output stream, which can be one
of these:
- a buffer, in which case output is inserted into that buffer at point;
- a marker, in which case output is inserted at marker's position;
- a function, in which case that function is called once for each
character of OBJECT's printed representation;
- a symbol, in which case that symbol's function definition is called; or
- t, in which case the output is displayed in the echo area.
If PRINTCHARFUN is omitted, the value of `standard-output' (which see)
is used instead. */)
(object, printcharfun)
Lisp_Object object, printcharfun;
{
PRINTDECLARE;
if (NILP (printcharfun))
printcharfun = Vstandard_output;
PRINTPREPARE;
print (object, printcharfun, 0);
PRINTFINISH;
return object;
}
DEFUN ("print", Fprint, Sprint, 1, 2, 0,
doc: /* Output the printed representation of OBJECT, with newlines around it.
Quoting characters are printed when needed to make output that `read'
can handle, whenever this is possible. For complex objects, the behavior
is controlled by `print-level' and `print-length', which see.
OBJECT is any of the Lisp data types: a number, a string, a symbol,
a list, a buffer, a window, a frame, etc.
A printed representation of an object is text which describes that object.
Optional argument PRINTCHARFUN is the output stream, which can be one
of these:
- a buffer, in which case output is inserted into that buffer at point;
- a marker, in which case output is inserted at marker's position;
- a function, in which case that function is called once for each
character of OBJECT's printed representation;
- a symbol, in which case that symbol's function definition is called; or
- t, in which case the output is displayed in the echo area.
If PRINTCHARFUN is omitted, the value of `standard-output' (which see)
is used instead. */)
(object, printcharfun)
Lisp_Object object, printcharfun;
{
PRINTDECLARE;
struct gcpro gcpro1;
#ifdef MAX_PRINT_CHARS
print_chars = 0;
max_print = MAX_PRINT_CHARS;
#endif /* MAX_PRINT_CHARS */
if (NILP (printcharfun))
printcharfun = Vstandard_output;
GCPRO1 (object);
PRINTPREPARE;
PRINTCHAR ('\n');
print (object, printcharfun, 1);
PRINTCHAR ('\n');
PRINTFINISH;
#ifdef MAX_PRINT_CHARS
max_print = 0;
print_chars = 0;
#endif /* MAX_PRINT_CHARS */
UNGCPRO;
return object;
}
/* The subroutine object for external-debugging-output is kept here
for the convenience of the debugger. */
Lisp_Object Qexternal_debugging_output;
DEFUN ("external-debugging-output", Fexternal_debugging_output, Sexternal_debugging_output, 1, 1, 0,
doc: /* Write CHARACTER to stderr.
You can call print while debugging emacs, and pass it this function
to make it write to the debugging output. */)
(character)
Lisp_Object character;
{
CHECK_NUMBER (character);
putc (XINT (character), stderr);
#ifdef WINDOWSNT
/* Send the output to a debugger (nothing happens if there isn't one). */
{
char buf[2] = {(char) XINT (character), '\0'};
OutputDebugString (buf);
}
#endif
return character;
}
#if defined(GNU_LINUX)
/* This functionality is not vitally important in general, so we rely on
non-portable ability to use stderr as lvalue. */
#define WITH_REDIRECT_DEBUGGING_OUTPUT 1
FILE *initial_stderr_stream = NULL;
DEFUN ("redirect-debugging-output", Fredirect_debugging_output, Sredirect_debugging_output,
1, 2,
"FDebug output file: \nP",
doc: /* Redirect debugging output (stderr stream) to file FILE.
If FILE is nil, reset target to the initial stderr stream.
Optional arg APPEND non-nil (interactively, with prefix arg) means
append to existing target file. */)
(file, append)
Lisp_Object file, append;
{
if (initial_stderr_stream != NULL)
fclose(stderr);
stderr = initial_stderr_stream;
initial_stderr_stream = NULL;
if (STRINGP (file))
{
file = Fexpand_file_name (file, Qnil);
initial_stderr_stream = stderr;
stderr = fopen(SDATA (file), NILP (append) ? "w" : "a");
if (stderr == NULL)
{
stderr = initial_stderr_stream;
initial_stderr_stream = NULL;
report_file_error ("Cannot open debugging output stream",
Fcons (file, Qnil));
}
}
return Qnil;
}
#endif /* GNU_LINUX */
/* This is the interface for debugging printing. */
void
debug_print (arg)
Lisp_Object arg;
{
Fprin1 (arg, Qexternal_debugging_output);
fprintf (stderr, "\r\n");
}
\f
DEFUN ("error-message-string", Ferror_message_string, Serror_message_string,
1, 1, 0,
doc: /* Convert an error value (ERROR-SYMBOL . DATA) to an error message.
See Info anchor `(elisp)Definition of signal' for some details on how this
error message is constructed. */)
(obj)
Lisp_Object obj;
{
struct buffer *old = current_buffer;
Lisp_Object value;
struct gcpro gcpro1;
/* If OBJ is (error STRING), just return STRING.
That is not only faster, it also avoids the need to allocate
space here when the error is due to memory full. */
if (CONSP (obj) && EQ (XCAR (obj), Qerror)
&& CONSP (XCDR (obj))
&& STRINGP (XCAR (XCDR (obj)))
&& NILP (XCDR (XCDR (obj))))
return XCAR (XCDR (obj));
print_error_message (obj, Vprin1_to_string_buffer, 0, Qnil);
set_buffer_internal (XBUFFER (Vprin1_to_string_buffer));
value = Fbuffer_string ();
GCPRO1 (value);
Ferase_buffer ();
set_buffer_internal (old);
UNGCPRO;
return value;
}
/* Print an error message for the error DATA onto Lisp output stream
STREAM (suitable for the print functions). */
void
print_error_message (data, stream, context, caller)
Lisp_Object data, stream;
char *context;
Lisp_Object caller;
{
Lisp_Object errname, errmsg, file_error, tail;
struct gcpro gcpro1;
int i;
if (context != 0)
write_string_1 (context, -1, stream);
/* If we know from where the error was signaled, show it in
*Messages*. */
if (!NILP (caller) && SYMBOLP (caller))
{
const char *name = SDATA (SYMBOL_NAME (caller));
message_dolog (name, strlen (name), 0, 0);
message_dolog (": ", 2, 0, 0);
}
errname = Fcar (data);
if (EQ (errname, Qerror))
{
data = Fcdr (data);
if (!CONSP (data))
data = Qnil;
errmsg = Fcar (data);
file_error = Qnil;
}
else
{
Lisp_Object error_conditions;
errmsg = Fget (errname, Qerror_message);
error_conditions = Fget (errname, Qerror_conditions);
file_error = Fmemq (Qfile_error, error_conditions);
}
/* Print an error message including the data items. */
tail = Fcdr_safe (data);
GCPRO1 (tail);
/* For file-error, make error message by concatenating
all the data items. They are all strings. */
if (!NILP (file_error) && CONSP (tail))
errmsg = XCAR (tail), tail = XCDR (tail);
if (STRINGP (errmsg))
Fprinc (errmsg, stream);
else
write_string_1 ("peculiar error", -1, stream);
for (i = 0; CONSP (tail); tail = XCDR (tail), i++)
{
Lisp_Object obj;
write_string_1 (i ? ", " : ": ", 2, stream);
obj = XCAR (tail);
if (!NILP (file_error) || EQ (errname, Qend_of_file))
Fprinc (obj, stream);
else
Fprin1 (obj, stream);
}
UNGCPRO;
}
\f
/*
* The buffer should be at least as large as the max string size of the
* largest float, printed in the biggest notation. This is undoubtedly
* 20d float_output_format, with the negative of the C-constant "HUGE"
* from <math.h>.
*
* On the vax the worst case is -1e38 in 20d format which takes 61 bytes.
*
* I assume that IEEE-754 format numbers can take 329 bytes for the worst
* case of -1e307 in 20d float_output_format. What is one to do (short of
* re-writing _doprnt to be more sane)?
* -wsr
*/
void
float_to_string (buf, data)
unsigned char *buf;
double data;
{
unsigned char *cp;
int width;
/* Check for plus infinity in a way that won't lose
if there is no plus infinity. */
if (data == data / 2 && data > 1.0)
{
strcpy (buf, "1.0e+INF");
return;
}
/* Likewise for minus infinity. */
if (data == data / 2 && data < -1.0)
{
strcpy (buf, "-1.0e+INF");
return;
}
/* Check for NaN in a way that won't fail if there are no NaNs. */
if (! (data * 0.0 >= 0.0))
{
/* Prepend "-" if the NaN's sign bit is negative.
The sign bit of a double is the bit that is 1 in -0.0. */
int i;
union { double d; char c[sizeof (double)]; } u_data, u_minus_zero;
u_data.d = data;
u_minus_zero.d = - 0.0;
for (i = 0; i < sizeof (double); i++)
if (u_data.c[i] & u_minus_zero.c[i])
{
*buf++ = '-';
break;
}
strcpy (buf, "0.0e+NaN");
return;
}
if (NILP (Vfloat_output_format)
|| !STRINGP (Vfloat_output_format))
lose:
{
/* Generate the fewest number of digits that represent the
floating point value without losing information.
The following method is simple but a bit slow.
For ideas about speeding things up, please see:
Guy L Steele Jr & Jon L White, How to print floating-point numbers
accurately. SIGPLAN notices 25, 6 (June 1990), 112-126.
Robert G Burger & R Kent Dybvig, Printing floating point numbers
quickly and accurately, SIGPLAN notices 31, 5 (May 1996), 108-116. */
width = fabs (data) < DBL_MIN ? 1 : DBL_DIG;
do
sprintf (buf, "%.*g", width, data);
while (width++ < DOUBLE_DIGITS_BOUND && atof (buf) != data);
}
else /* oink oink */
{
/* Check that the spec we have is fully valid.
This means not only valid for printf,
but meant for floats, and reasonable. */
cp = SDATA (Vfloat_output_format);
if (cp[0] != '%')
goto lose;
if (cp[1] != '.')
goto lose;
cp += 2;
/* Check the width specification. */
width = -1;
if ('0' <= *cp && *cp <= '9')
{
width = 0;
do
width = (width * 10) + (*cp++ - '0');
while (*cp >= '0' && *cp <= '9');
/* A precision of zero is valid only for %f. */
if (width > DBL_DIG
|| (width == 0 && *cp != 'f'))
goto lose;
}
if (*cp != 'e' && *cp != 'f' && *cp != 'g')
goto lose;
if (cp[1] != 0)
goto lose;
sprintf (buf, SDATA (Vfloat_output_format), data);
}
/* Make sure there is a decimal point with digit after, or an
exponent, so that the value is readable as a float. But don't do
this with "%.0f"; it's valid for that not to produce a decimal
point. Note that width can be 0 only for %.0f. */
if (width != 0)
{
for (cp = buf; *cp; cp++)
if ((*cp < '0' || *cp > '9') && *cp != '-')
break;
if (*cp == '.' && cp[1] == 0)
{
cp[1] = '0';
cp[2] = 0;
}
if (*cp == 0)
{
*cp++ = '.';
*cp++ = '0';
*cp++ = 0;
}
}
}
\f
static void
print (obj, printcharfun, escapeflag)
Lisp_Object obj;
register Lisp_Object printcharfun;
int escapeflag;
{
old_backquote_output = 0;
/* Reset print_number_index and Vprint_number_table only when
the variable Vprint_continuous_numbering is nil. Otherwise,
the values of these variables will be kept between several
print functions. */
if (NILP (Vprint_continuous_numbering))
{
print_number_index = 0;
Vprint_number_table = Qnil;
}
/* Construct Vprint_number_table for print-gensym and print-circle. */
if (!NILP (Vprint_gensym) || !NILP (Vprint_circle))
{
int i, start, index;
start = index = print_number_index;
/* Construct Vprint_number_table.
This increments print_number_index for the objects added. */
print_depth = 0;
print_preprocess (obj);
/* Remove unnecessary objects, which appear only once in OBJ;
that is, whose status is Qnil. Compactify the necessary objects. */
for (i = start; i < print_number_index; i++)
if (!NILP (PRINT_NUMBER_STATUS (Vprint_number_table, i)))
{
PRINT_NUMBER_OBJECT (Vprint_number_table, index)
= PRINT_NUMBER_OBJECT (Vprint_number_table, i);
index++;
}
/* Clear out objects outside the active part of the table. */
for (i = index; i < print_number_index; i++)
PRINT_NUMBER_OBJECT (Vprint_number_table, i) = Qnil;
/* Reset the status field for the next print step. Now this
field means whether the object has already been printed. */
for (i = start; i < print_number_index; i++)
PRINT_NUMBER_STATUS (Vprint_number_table, i) = Qnil;
print_number_index = index;
}
print_depth = 0;
print_object (obj, printcharfun, escapeflag);
}
/* Construct Vprint_number_table according to the structure of OBJ.
OBJ itself and all its elements will be added to Vprint_number_table
recursively if it is a list, vector, compiled function, char-table,
string (its text properties will be traced), or a symbol that has
no obarray (this is for the print-gensym feature).
The status fields of Vprint_number_table mean whether each object appears
more than once in OBJ: Qnil at the first time, and Qt after that . */
static void
print_preprocess (obj)
Lisp_Object obj;
{
int i;
EMACS_INT size;
int loop_count = 0;
Lisp_Object halftail;
/* Give up if we go so deep that print_object will get an error. */
/* See similar code in print_object. */
if (print_depth >= PRINT_CIRCLE)
return;
/* Avoid infinite recursion for circular nested structure
in the case where Vprint_circle is nil. */
if (NILP (Vprint_circle))
{
for (i = 0; i < print_depth; i++)
if (EQ (obj, being_printed[i]))
return;
being_printed[print_depth] = obj;
}
print_depth++;
halftail = obj;
loop:
if (STRINGP (obj) || CONSP (obj) || VECTORP (obj)
|| COMPILEDP (obj) || CHAR_TABLE_P (obj)
|| (! NILP (Vprint_gensym)
&& SYMBOLP (obj)
&& !SYMBOL_INTERNED_P (obj)))
{
/* In case print-circle is nil and print-gensym is t,
add OBJ to Vprint_number_table only when OBJ is a symbol. */
if (! NILP (Vprint_circle) || SYMBOLP (obj))
{
for (i = 0; i < print_number_index; i++)
if (EQ (PRINT_NUMBER_OBJECT (Vprint_number_table, i), obj))
{
/* OBJ appears more than once. Let's remember that. */
PRINT_NUMBER_STATUS (Vprint_number_table, i) = Qt;
return;
}
/* OBJ is not yet recorded. Let's add to the table. */
if (print_number_index == 0)
{
/* Initialize the table. */
Vprint_number_table = Fmake_vector (make_number (40), Qnil);
}
else if (XVECTOR (Vprint_number_table)->size == print_number_index * 2)
{
/* Reallocate the table. */
int i = print_number_index * 4;
Lisp_Object old_table = Vprint_number_table;
Vprint_number_table = Fmake_vector (make_number (i), Qnil);
for (i = 0; i < print_number_index; i++)
{
PRINT_NUMBER_OBJECT (Vprint_number_table, i)
= PRINT_NUMBER_OBJECT (old_table, i);
PRINT_NUMBER_STATUS (Vprint_number_table, i)
= PRINT_NUMBER_STATUS (old_table, i);
}
}
PRINT_NUMBER_OBJECT (Vprint_number_table, print_number_index) = obj;
/* If Vprint_continuous_numbering is non-nil and OBJ is a gensym,
always print the gensym with a number. This is a special for
the lisp function byte-compile-output-docform. */
if (!NILP (Vprint_continuous_numbering)
&& SYMBOLP (obj)
&& !SYMBOL_INTERNED_P (obj))
PRINT_NUMBER_STATUS (Vprint_number_table, print_number_index) = Qt;
print_number_index++;
}
switch (XGCTYPE (obj))
{
case Lisp_String:
/* A string may have text properties, which can be circular. */
traverse_intervals_noorder (STRING_INTERVALS (obj),
print_preprocess_string, Qnil);
break;
case Lisp_Cons:
/* Use HALFTAIL and LOOP_COUNT to detect circular lists,
just as in print_object. */
if (loop_count && EQ (obj, halftail))
break;
print_preprocess (XCAR (obj));
obj = XCDR (obj);
loop_count++;
if (!(loop_count & 1))
halftail = XCDR (halftail);
goto loop;
case Lisp_Vectorlike:
size = XVECTOR (obj)->size;
if (size & PSEUDOVECTOR_FLAG)
size &= PSEUDOVECTOR_SIZE_MASK;
for (i = 0; i < size; i++)
print_preprocess (XVECTOR (obj)->contents[i]);
break;
default:
break;
}
}
print_depth--;
}
static void
print_preprocess_string (interval, arg)
INTERVAL interval;
Lisp_Object arg;
{
print_preprocess (interval->plist);
}
static void
print_object (obj, printcharfun, escapeflag)
Lisp_Object obj;
register Lisp_Object printcharfun;
int escapeflag;
{
char buf[40];
QUIT;
/* Detect circularities and truncate them. */
if (STRINGP (obj) || CONSP (obj) || VECTORP (obj)
|| COMPILEDP (obj) || CHAR_TABLE_P (obj)
|| (! NILP (Vprint_gensym)
&& SYMBOLP (obj)
&& !SYMBOL_INTERNED_P (obj)))
{
if (NILP (Vprint_circle) && NILP (Vprint_gensym))
{
/* Simple but incomplete way. */
int i;
for (i = 0; i < print_depth; i++)
if (EQ (obj, being_printed[i]))
{
sprintf (buf, "#%d", i);
strout (buf, -1, -1, printcharfun, 0);
return;
}
being_printed[print_depth] = obj;
}
else
{
/* With the print-circle feature. */
int i;
for (i = 0; i < print_number_index; i++)
if (EQ (PRINT_NUMBER_OBJECT (Vprint_number_table, i), obj))
{
if (NILP (PRINT_NUMBER_STATUS (Vprint_number_table, i)))
{
/* Add a prefix #n= if OBJ has not yet been printed;
that is, its status field is nil. */
sprintf (buf, "#%d=", i + 1);
strout (buf, -1, -1, printcharfun, 0);
/* OBJ is going to be printed. Set the status to t. */
PRINT_NUMBER_STATUS (Vprint_number_table, i) = Qt;
break;
}
else
{
/* Just print #n# if OBJ has already been printed. */
sprintf (buf, "#%d#", i + 1);
strout (buf, -1, -1, printcharfun, 0);
return;
}
}
}
}
print_depth++;
/* See similar code in print_preprocess. */
if (print_depth > PRINT_CIRCLE)
error ("Apparently circular structure being printed");
#ifdef MAX_PRINT_CHARS
if (max_print && print_chars > max_print)
{
PRINTCHAR ('\n');
print_chars = 0;
}
#endif /* MAX_PRINT_CHARS */
switch (XGCTYPE (obj))
{
case Lisp_Int:
if (sizeof (int) == sizeof (EMACS_INT))
sprintf (buf, "%d", XINT (obj));
else if (sizeof (long) == sizeof (EMACS_INT))
sprintf (buf, "%ld", (long) XINT (obj));
else
abort ();
strout (buf, -1, -1, printcharfun, 0);
break;
case Lisp_Float:
{
char pigbuf[350]; /* see comments in float_to_string */
float_to_string (pigbuf, XFLOAT_DATA (obj));
strout (pigbuf, -1, -1, printcharfun, 0);
}
break;
case Lisp_String:
if (!escapeflag)
print_string (obj, printcharfun);
else
{
register int i, i_byte;
struct gcpro gcpro1;
unsigned char *str;
int size_byte;
/* 1 means we must ensure that the next character we output
cannot be taken as part of a hex character escape. */
int need_nonhex = 0;
int multibyte = STRING_MULTIBYTE (obj);
GCPRO1 (obj);
if (!NULL_INTERVAL_P (STRING_INTERVALS (obj)))
{
PRINTCHAR ('#');
PRINTCHAR ('(');
}
PRINTCHAR ('\"');
str = SDATA (obj);
size_byte = SBYTES (obj);
for (i = 0, i_byte = 0; i_byte < size_byte;)
{
/* Here, we must convert each multi-byte form to the
corresponding character code before handing it to PRINTCHAR. */
int len;
int c;
if (multibyte)
{
c = STRING_CHAR_AND_LENGTH (str + i_byte,
size_byte - i_byte, len);
if (CHAR_VALID_P (c, 0))
i_byte += len;
else
c = str[i_byte++];
}
else
c = str[i_byte++];
QUIT;
if (c == '\n' && print_escape_newlines)
{
PRINTCHAR ('\\');
PRINTCHAR ('n');
}
else if (c == '\f' && print_escape_newlines)
{
PRINTCHAR ('\\');
PRINTCHAR ('f');
}
else if (multibyte
&& ! ASCII_BYTE_P (c)
&& (SINGLE_BYTE_CHAR_P (c) || print_escape_multibyte))
{
/* When multibyte is disabled,
print multibyte string chars using hex escapes.
For a char code that could be in a unibyte string,
when found in a multibyte string, always use a hex escape
so it reads back as multibyte. */
unsigned char outbuf[50];
sprintf (outbuf, "\\x%x", c);
strout (outbuf, -1, -1, printcharfun, 0);
need_nonhex = 1;
}
else if (! multibyte
&& SINGLE_BYTE_CHAR_P (c) && ! ASCII_BYTE_P (c)
&& print_escape_nonascii)
{
/* When printing in a multibyte buffer
or when explicitly requested,
print single-byte non-ASCII string chars
using octal escapes. */
unsigned char outbuf[5];
sprintf (outbuf, "\\%03o", c);
strout (outbuf, -1, -1, printcharfun, 0);
}
else
{
/* If we just had a hex escape, and this character
could be taken as part of it,
output `\ ' to prevent that. */
if (need_nonhex)
{
need_nonhex = 0;
if ((c >= 'a' && c <= 'f')
|| (c >= 'A' && c <= 'F')
|| (c >= '0' && c <= '9'))
strout ("\\ ", -1, -1, printcharfun, 0);
}
if (c == '\"' || c == '\\')
PRINTCHAR ('\\');
PRINTCHAR (c);
}
}
PRINTCHAR ('\"');
if (!NULL_INTERVAL_P (STRING_INTERVALS (obj)))
{
traverse_intervals (STRING_INTERVALS (obj),
0, print_interval, printcharfun);
PRINTCHAR (')');
}
UNGCPRO;
}
break;
case Lisp_Symbol:
{
register int confusing;
register unsigned char *p = SDATA (SYMBOL_NAME (obj));
register unsigned char *end = p + SBYTES (SYMBOL_NAME (obj));
register int c;
int i, i_byte, size_byte;
Lisp_Object name;
name = SYMBOL_NAME (obj);
if (p != end && (*p == '-' || *p == '+')) p++;
if (p == end)
confusing = 0;
/* If symbol name begins with a digit, and ends with a digit,
and contains nothing but digits and `e', it could be treated
as a number. So set CONFUSING.
Symbols that contain periods could also be taken as numbers,
but periods are always escaped, so we don't have to worry
about them here. */
else if (*p >= '0' && *p <= '9'
&& end[-1] >= '0' && end[-1] <= '9')
{
while (p != end && ((*p >= '0' && *p <= '9')
/* Needed for \2e10. */
|| *p == 'e'))
p++;
confusing = (end == p);
}
else
confusing = 0;
if (! NILP (Vprint_gensym) && !SYMBOL_INTERNED_P (obj))
{
PRINTCHAR ('#');
PRINTCHAR (':');
}
size_byte = SBYTES (name);
for (i = 0, i_byte = 0; i_byte < size_byte;)
{
/* Here, we must convert each multi-byte form to the
corresponding character code before handing it to PRINTCHAR. */
FETCH_STRING_CHAR_ADVANCE (c, name, i, i_byte);
QUIT;
if (escapeflag)
{
if (c == '\"' || c == '\\' || c == '\''
|| c == ';' || c == '#' || c == '(' || c == ')'
|| c == ',' || c =='.' || c == '`'
|| c == '[' || c == ']' || c == '?' || c <= 040
|| confusing)
PRINTCHAR ('\\'), confusing = 0;
}
PRINTCHAR (c);
}
}
break;
case Lisp_Cons:
/* If deeper than spec'd depth, print placeholder. */
if (INTEGERP (Vprint_level)
&& print_depth > XINT (Vprint_level))
strout ("...", -1, -1, printcharfun, 0);
else if (print_quoted && CONSP (XCDR (obj)) && NILP (XCDR (XCDR (obj)))
&& (EQ (XCAR (obj), Qquote)))
{
PRINTCHAR ('\'');
print_object (XCAR (XCDR (obj)), printcharfun, escapeflag);
}
else if (print_quoted && CONSP (XCDR (obj)) && NILP (XCDR (XCDR (obj)))
&& (EQ (XCAR (obj), Qfunction)))
{
PRINTCHAR ('#');
PRINTCHAR ('\'');
print_object (XCAR (XCDR (obj)), printcharfun, escapeflag);
}
else if (print_quoted && CONSP (XCDR (obj)) && NILP (XCDR (XCDR (obj)))
&& ! old_backquote_output
&& ((EQ (XCAR (obj), Qbackquote)
|| EQ (XCAR (obj), Qcomma)
|| EQ (XCAR (obj), Qcomma_at)
|| EQ (XCAR (obj), Qcomma_dot))))
{
print_object (XCAR (obj), printcharfun, 0);
print_object (XCAR (XCDR (obj)), printcharfun, escapeflag);
}
else
{
PRINTCHAR ('(');
/* If the first element is a backquote form,
print it old-style so it won't be misunderstood. */
if (print_quoted && CONSP (XCAR (obj))
&& CONSP (XCDR (XCAR (obj)))
&& NILP (XCDR (XCDR (XCAR (obj))))
&& EQ (XCAR (XCAR (obj)), Qbackquote))
{
Lisp_Object tem;
tem = XCAR (obj);
PRINTCHAR ('(');
print_object (Qbackquote, printcharfun, 0);
PRINTCHAR (' ');
++old_backquote_output;
print_object (XCAR (XCDR (tem)), printcharfun, 0);
--old_backquote_output;
PRINTCHAR (')');
obj = XCDR (obj);
}
{
int print_length, i;
Lisp_Object halftail = obj;
/* Negative values of print-length are invalid in CL.
Treat them like nil, as CMUCL does. */
if (NATNUMP (Vprint_length))
print_length = XFASTINT (Vprint_length);
else
print_length = 0;
i = 0;
while (CONSP (obj))
{
/* Detect circular list. */
if (NILP (Vprint_circle))
{
/* Simple but imcomplete way. */
if (i != 0 && EQ (obj, halftail))
{
sprintf (buf, " . #%d", i / 2);
strout (buf, -1, -1, printcharfun, 0);
goto end_of_list;
}
}
else
{
/* With the print-circle feature. */
if (i != 0)
{
int i;
for (i = 0; i < print_number_index; i++)
if (EQ (PRINT_NUMBER_OBJECT (Vprint_number_table, i),
obj))
{
if (NILP (PRINT_NUMBER_STATUS (Vprint_number_table, i)))
{
strout (" . ", 3, 3, printcharfun, 0);
print_object (obj, printcharfun, escapeflag);
}
else
{
sprintf (buf, " . #%d#", i + 1);
strout (buf, -1, -1, printcharfun, 0);
}
goto end_of_list;
}
}
}
if (i++)
PRINTCHAR (' ');
if (print_length && i > print_length)
{
strout ("...", 3, 3, printcharfun, 0);
goto end_of_list;
}
print_object (XCAR (obj), printcharfun, escapeflag);
obj = XCDR (obj);
if (!(i & 1))
halftail = XCDR (halftail);
}
}
/* OBJ non-nil here means it's the end of a dotted list. */
if (!NILP (obj))
{
strout (" . ", 3, 3, printcharfun, 0);
print_object (obj, printcharfun, escapeflag);
}
end_of_list:
PRINTCHAR (')');
}
break;
case Lisp_Vectorlike:
if (PROCESSP (obj))
{
if (escapeflag)
{
strout ("#<process ", -1, -1, printcharfun, 0);
print_string (XPROCESS (obj)->name, printcharfun);
PRINTCHAR ('>');
}
else
print_string (XPROCESS (obj)->name, printcharfun);
}
else if (BOOL_VECTOR_P (obj))
{
register int i;
register unsigned char c;
struct gcpro gcpro1;
int size_in_chars
= ((XBOOL_VECTOR (obj)->size + BOOL_VECTOR_BITS_PER_CHAR - 1)
/ BOOL_VECTOR_BITS_PER_CHAR);
GCPRO1 (obj);
PRINTCHAR ('#');
PRINTCHAR ('&');
sprintf (buf, "%ld", (long) XBOOL_VECTOR (obj)->size);
strout (buf, -1, -1, printcharfun, 0);
PRINTCHAR ('\"');
/* Don't print more characters than the specified maximum.
Negative values of print-length are invalid. Treat them
like a print-length of nil. */
if (NATNUMP (Vprint_length)
&& XFASTINT (Vprint_length) < size_in_chars)
size_in_chars = XFASTINT (Vprint_length);
for (i = 0; i < size_in_chars; i++)
{
QUIT;
c = XBOOL_VECTOR (obj)->data[i];
if (c == '\n' && print_escape_newlines)
{
PRINTCHAR ('\\');
PRINTCHAR ('n');
}
else if (c == '\f' && print_escape_newlines)
{
PRINTCHAR ('\\');
PRINTCHAR ('f');
}
else if (c > '\177')
{
/* Use octal escapes to avoid encoding issues. */
PRINTCHAR ('\\');
PRINTCHAR ('0' + ((c >> 6) & 3));
PRINTCHAR ('0' + ((c >> 3) & 7));
PRINTCHAR ('0' + (c & 7));
}
else
{
if (c == '\"' || c == '\\')
PRINTCHAR ('\\');
PRINTCHAR (c);
}
}
PRINTCHAR ('\"');
UNGCPRO;
}
else if (SUBRP (obj))
{
strout ("#<subr ", -1, -1, printcharfun, 0);
strout (XSUBR (obj)->symbol_name, -1, -1, printcharfun, 0);
PRINTCHAR ('>');
}
else if (WINDOWP (obj))
{
strout ("#<window ", -1, -1, printcharfun, 0);
sprintf (buf, "%ld", (long) XFASTINT (XWINDOW (obj)->sequence_number));
strout (buf, -1, -1, printcharfun, 0);
if (!NILP (XWINDOW (obj)->buffer))
{
strout (" on ", -1, -1, printcharfun, 0);
print_string (XBUFFER (XWINDOW (obj)->buffer)->name, printcharfun);
}
PRINTCHAR ('>');
}
else if (HASH_TABLE_P (obj))
{
struct Lisp_Hash_Table *h = XHASH_TABLE (obj);
strout ("#<hash-table", -1, -1, printcharfun, 0);
if (SYMBOLP (h->test))
{
PRINTCHAR (' ');
PRINTCHAR ('\'');
strout (SDATA (SYMBOL_NAME (h->test)), -1, -1, printcharfun, 0);
PRINTCHAR (' ');
strout (SDATA (SYMBOL_NAME (h->weak)), -1, -1, printcharfun, 0);
PRINTCHAR (' ');
sprintf (buf, "%ld/%ld", (long) XFASTINT (h->count),
(long) XVECTOR (h->next)->size);
strout (buf, -1, -1, printcharfun, 0);
}
sprintf (buf, " 0x%lx", (unsigned long) h);
strout (buf, -1, -1, printcharfun, 0);
PRINTCHAR ('>');
}
else if (BUFFERP (obj))
{
if (NILP (XBUFFER (obj)->name))
strout ("#<killed buffer>", -1, -1, printcharfun, 0);
else if (escapeflag)
{
strout ("#<buffer ", -1, -1, printcharfun, 0);
print_string (XBUFFER (obj)->name, printcharfun);
PRINTCHAR ('>');
}
else
print_string (XBUFFER (obj)->name, printcharfun);
}
else if (WINDOW_CONFIGURATIONP (obj))
{
strout ("#<window-configuration>", -1, -1, printcharfun, 0);
}
else if (FRAMEP (obj))
{
strout ((FRAME_LIVE_P (XFRAME (obj))
? "#<frame " : "#<dead frame "),
-1, -1, printcharfun, 0);
print_string (XFRAME (obj)->name, printcharfun);
sprintf (buf, " 0x%lx", (unsigned long) (XFRAME (obj)));
strout (buf, -1, -1, printcharfun, 0);
PRINTCHAR ('>');
}
else
{
EMACS_INT size = XVECTOR (obj)->size;
if (COMPILEDP (obj))
{
PRINTCHAR ('#');
size &= PSEUDOVECTOR_SIZE_MASK;
}
if (CHAR_TABLE_P (obj))
{
/* We print a char-table as if it were a vector,
lumping the parent and default slots in with the
character slots. But we add #^ as a prefix. */
PRINTCHAR ('#');
PRINTCHAR ('^');
if (SUB_CHAR_TABLE_P (obj))
PRINTCHAR ('^');
size &= PSEUDOVECTOR_SIZE_MASK;
}
if (size & PSEUDOVECTOR_FLAG)
goto badtype;
PRINTCHAR ('[');
{
register int i;
register Lisp_Object tem;
int real_size = size;
/* Don't print more elements than the specified maximum. */
if (NATNUMP (Vprint_length)
&& XFASTINT (Vprint_length) < size)
size = XFASTINT (Vprint_length);
for (i = 0; i < size; i++)
{
if (i) PRINTCHAR (' ');
tem = XVECTOR (obj)->contents[i];
print_object (tem, printcharfun, escapeflag);
}
if (size < real_size)
strout (" ...", 4, 4, printcharfun, 0);
}
PRINTCHAR (']');
}
break;
case Lisp_Misc:
switch (XMISCTYPE (obj))
{
case Lisp_Misc_Marker:
strout ("#<marker ", -1, -1, printcharfun, 0);
/* Do you think this is necessary? */
if (XMARKER (obj)->insertion_type != 0)
strout ("(moves after insertion) ", -1, -1, printcharfun, 0);
if (!(XMARKER (obj)->buffer))
strout ("in no buffer", -1, -1, printcharfun, 0);
else
{
sprintf (buf, "at %d", marker_position (obj));
strout (buf, -1, -1, printcharfun, 0);
strout (" in ", -1, -1, printcharfun, 0);
print_string (XMARKER (obj)->buffer->name, printcharfun);
}
PRINTCHAR ('>');
break;
case Lisp_Misc_Overlay:
strout ("#<overlay ", -1, -1, printcharfun, 0);
if (!(XMARKER (OVERLAY_START (obj))->buffer))
strout ("in no buffer", -1, -1, printcharfun, 0);
else
{
sprintf (buf, "from %d to %d in ",
marker_position (OVERLAY_START (obj)),
marker_position (OVERLAY_END (obj)));
strout (buf, -1, -1, printcharfun, 0);
print_string (XMARKER (OVERLAY_START (obj))->buffer->name,
printcharfun);
}
PRINTCHAR ('>');
break;
/* Remaining cases shouldn't happen in normal usage, but let's print
them anyway for the benefit of the debugger. */
case Lisp_Misc_Free:
strout ("#<misc free cell>", -1, -1, printcharfun, 0);
break;
case Lisp_Misc_Intfwd:
sprintf (buf, "#<intfwd to %ld>", (long) *XINTFWD (obj)->intvar);
strout (buf, -1, -1, printcharfun, 0);
break;
case Lisp_Misc_Boolfwd:
sprintf (buf, "#<boolfwd to %s>",
(*XBOOLFWD (obj)->boolvar ? "t" : "nil"));
strout (buf, -1, -1, printcharfun, 0);
break;
case Lisp_Misc_Objfwd:
strout ("#<objfwd to ", -1, -1, printcharfun, 0);
print_object (*XOBJFWD (obj)->objvar, printcharfun, escapeflag);
PRINTCHAR ('>');
break;
case Lisp_Misc_Buffer_Objfwd:
strout ("#<buffer_objfwd to ", -1, -1, printcharfun, 0);
print_object (PER_BUFFER_VALUE (current_buffer,
XBUFFER_OBJFWD (obj)->offset),
printcharfun, escapeflag);
PRINTCHAR ('>');
break;
case Lisp_Misc_Kboard_Objfwd:
strout ("#<kboard_objfwd to ", -1, -1, printcharfun, 0);
print_object (*(Lisp_Object *)((char *) current_kboard
+ XKBOARD_OBJFWD (obj)->offset),
printcharfun, escapeflag);
PRINTCHAR ('>');
break;
case Lisp_Misc_Buffer_Local_Value:
strout ("#<buffer_local_value ", -1, -1, printcharfun, 0);
goto do_buffer_local;
case Lisp_Misc_Some_Buffer_Local_Value:
strout ("#<some_buffer_local_value ", -1, -1, printcharfun, 0);
do_buffer_local:
strout ("[realvalue] ", -1, -1, printcharfun, 0);
print_object (XBUFFER_LOCAL_VALUE (obj)->realvalue,
printcharfun, escapeflag);
if (XBUFFER_LOCAL_VALUE (obj)->found_for_buffer)
strout ("[local in buffer] ", -1, -1, printcharfun, 0);
else
strout ("[buffer] ", -1, -1, printcharfun, 0);
print_object (XBUFFER_LOCAL_VALUE (obj)->buffer,
printcharfun, escapeflag);
if (XBUFFER_LOCAL_VALUE (obj)->check_frame)
{
if (XBUFFER_LOCAL_VALUE (obj)->found_for_frame)
strout ("[local in frame] ", -1, -1, printcharfun, 0);
else
strout ("[frame] ", -1, -1, printcharfun, 0);
print_object (XBUFFER_LOCAL_VALUE (obj)->frame,
printcharfun, escapeflag);
}
strout ("[alist-elt] ", -1, -1, printcharfun, 0);
print_object (XCAR (XBUFFER_LOCAL_VALUE (obj)->cdr),
printcharfun, escapeflag);
strout ("[default-value] ", -1, -1, printcharfun, 0);
print_object (XCDR (XBUFFER_LOCAL_VALUE (obj)->cdr),
printcharfun, escapeflag);
PRINTCHAR ('>');
break;
case Lisp_Misc_Save_Value:
strout ("#<save_value ", -1, -1, printcharfun, 0);
sprintf(buf, "ptr=0x%08lx int=%d",
(unsigned long) XSAVE_VALUE (obj)->pointer,
XSAVE_VALUE (obj)->integer);
strout (buf, -1, -1, printcharfun, 0);
PRINTCHAR ('>');
break;
default:
goto badtype;
}
break;
default:
badtype:
{
/* We're in trouble if this happens!
Probably should just abort () */
strout ("#<EMACS BUG: INVALID DATATYPE ", -1, -1, printcharfun, 0);
if (MISCP (obj))
sprintf (buf, "(MISC 0x%04x)", (int) XMISCTYPE (obj));
else if (VECTORLIKEP (obj))
sprintf (buf, "(PVEC 0x%08x)", (int) XVECTOR (obj)->size);
else
sprintf (buf, "(0x%02x)", (int) XTYPE (obj));
strout (buf, -1, -1, printcharfun, 0);
strout (" Save your buffers immediately and please report this bug>",
-1, -1, printcharfun, 0);
}
}
print_depth--;
}
\f
/* Print a description of INTERVAL using PRINTCHARFUN.
This is part of printing a string that has text properties. */
void
print_interval (interval, printcharfun)
INTERVAL interval;
Lisp_Object printcharfun;
{
PRINTCHAR (' ');
print_object (make_number (interval->position), printcharfun, 1);
PRINTCHAR (' ');
print_object (make_number (interval->position + LENGTH (interval)),
printcharfun, 1);
PRINTCHAR (' ');
print_object (interval->plist, printcharfun, 1);
}
\f
void
syms_of_print ()
{
Qtemp_buffer_setup_hook = intern ("temp-buffer-setup-hook");
staticpro (&Qtemp_buffer_setup_hook);
DEFVAR_LISP ("standard-output", &Vstandard_output,
doc: /* Output stream `print' uses by default for outputting a character.
This may be any function of one argument.
It may also be a buffer (output is inserted before point)
or a marker (output is inserted and the marker is advanced)
or the symbol t (output appears in the echo area). */);
Vstandard_output = Qt;
Qstandard_output = intern ("standard-output");
staticpro (&Qstandard_output);
DEFVAR_LISP ("float-output-format", &Vfloat_output_format,
doc: /* The format descriptor string used to print floats.
This is a %-spec like those accepted by `printf' in C,
but with some restrictions. It must start with the two characters `%.'.
After that comes an integer precision specification,
and then a letter which controls the format.
The letters allowed are `e', `f' and `g'.
Use `e' for exponential notation \"DIG.DIGITSeEXPT\"
Use `f' for decimal point notation \"DIGITS.DIGITS\".
Use `g' to choose the shorter of those two formats for the number at hand.
The precision in any of these cases is the number of digits following
the decimal point. With `f', a precision of 0 means to omit the
decimal point. 0 is not allowed with `e' or `g'.
A value of nil means to use the shortest notation
that represents the number without losing information. */);
Vfloat_output_format = Qnil;
Qfloat_output_format = intern ("float-output-format");
staticpro (&Qfloat_output_format);
DEFVAR_LISP ("print-length", &Vprint_length,
doc: /* Maximum length of list to print before abbreviating.
A value of nil means no limit. See also `eval-expression-print-length'. */);
Vprint_length = Qnil;
DEFVAR_LISP ("print-level", &Vprint_level,
doc: /* Maximum depth of list nesting to print before abbreviating.
A value of nil means no limit. See also `eval-expression-print-level'. */);
Vprint_level = Qnil;
DEFVAR_BOOL ("print-escape-newlines", &print_escape_newlines,
doc: /* Non-nil means print newlines in strings as `\\n'.
Also print formfeeds as `\\f'. */);
print_escape_newlines = 0;
DEFVAR_BOOL ("print-escape-nonascii", &print_escape_nonascii,
doc: /* Non-nil means print unibyte non-ASCII chars in strings as \\OOO.
\(OOO is the octal representation of the character code.)
Only single-byte characters are affected, and only in `prin1'.
When the output goes in a multibyte buffer, this feature is
enabled regardless of the value of the variable. */);
print_escape_nonascii = 0;
DEFVAR_BOOL ("print-escape-multibyte", &print_escape_multibyte,
doc: /* Non-nil means print multibyte characters in strings as \\xXXXX.
\(XXXX is the hex representation of the character code.)
This affects only `prin1'. */);
print_escape_multibyte = 0;
DEFVAR_BOOL ("print-quoted", &print_quoted,
doc: /* Non-nil means print quoted forms with reader syntax.
I.e., (quote foo) prints as 'foo, (function foo) as #'foo, and backquoted
forms print as in the new syntax. */);
print_quoted = 0;
DEFVAR_LISP ("print-gensym", &Vprint_gensym,
doc: /* Non-nil means print uninterned symbols so they will read as uninterned.
I.e., the value of (make-symbol \"foobar\") prints as #:foobar.
When the uninterned symbol appears within a recursive data structure,
and the symbol appears more than once, in addition use the #N# and #N=
constructs as needed, so that multiple references to the same symbol are
shared once again when the text is read back. */);
Vprint_gensym = Qnil;
DEFVAR_LISP ("print-circle", &Vprint_circle,
doc: /* *Non-nil means print recursive structures using #N= and #N# syntax.
If nil, printing proceeds recursively and may lead to
`max-lisp-eval-depth' being exceeded or an error may occur:
\"Apparently circular structure being printed.\" Also see
`print-length' and `print-level'.
If non-nil, shared substructures anywhere in the structure are printed
with `#N=' before the first occurrence (in the order of the print
representation) and `#N#' in place of each subsequent occurrence,
where N is a positive decimal integer. */);
Vprint_circle = Qnil;
DEFVAR_LISP ("print-continuous-numbering", &Vprint_continuous_numbering,
doc: /* *Non-nil means number continuously across print calls.
This affects the numbers printed for #N= labels and #M# references.
See also `print-circle', `print-gensym', and `print-number-table'.
This variable should not be set with `setq'; bind it with a `let' instead. */);
Vprint_continuous_numbering = Qnil;
DEFVAR_LISP ("print-number-table", &Vprint_number_table,
doc: /* A vector used internally to produce `#N=' labels and `#N#' references.
The Lisp printer uses this vector to detect Lisp objects referenced more
than once.
When you bind `print-continuous-numbering' to t, you should probably
also bind `print-number-table' to nil. This ensures that the value of
`print-number-table' can be garbage-collected once the printing is
done. If all elements of `print-number-table' are nil, it means that
the printing done so far has not found any shared structure or objects
that need to be recorded in the table. */);
Vprint_number_table = Qnil;
/* prin1_to_string_buffer initialized in init_buffer_once in buffer.c */
staticpro (&Vprin1_to_string_buffer);
defsubr (&Sprin1);
defsubr (&Sprin1_to_string);
defsubr (&Serror_message_string);
defsubr (&Sprinc);
defsubr (&Sprint);
defsubr (&Sterpri);
defsubr (&Swrite_char);
defsubr (&Sexternal_debugging_output);
#ifdef WITH_REDIRECT_DEBUGGING_OUTPUT
defsubr (&Sredirect_debugging_output);
#endif
Qexternal_debugging_output = intern ("external-debugging-output");
staticpro (&Qexternal_debugging_output);
Qprint_escape_newlines = intern ("print-escape-newlines");
staticpro (&Qprint_escape_newlines);
Qprint_escape_multibyte = intern ("print-escape-multibyte");
staticpro (&Qprint_escape_multibyte);
Qprint_escape_nonascii = intern ("print-escape-nonascii");
staticpro (&Qprint_escape_nonascii);
defsubr (&Swith_output_to_temp_buffer);
}
/* arch-tag: bc797170-94ae-41de-86e3-75e20f8f7a39
(do not change this comment) */
|