all messages for Emacs-related lists mirrored at yhetil.org
 help / color / mirror / code / Atom feed
blob 3e430400528dbe83e72b33a983ee3f94df421ceb 12290 bytes (raw)
name: src/macros.c 	 # note: path name is non-authoritative(*)

  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
 
/* Keyboard macros.

Copyright (C) 1985-1986, 1993, 2000-2016 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 "lisp.h"
#include "macros.h"
#include "window.h"
#include "keyboard.h"

/* Number of successful iterations so far
   for innermost keyboard macro.
   This is not bound at each level,
   so after an error, it describes the innermost interrupted macro.  */

EMACS_INT executing_kbd_macro_iterations;

/* This is the macro that was executing.
   This is not bound at each level,
   so after an error, it describes the innermost interrupted macro.
   We use it only as a kind of flag, so no need to protect it.  */

Lisp_Object executing_kbd_macro;

DEFUN ("start-kbd-macro", Fstart_kbd_macro, Sstart_kbd_macro, 1, 2, "P",
       doc: /* Record subsequent keyboard input, defining a keyboard macro.
The commands are recorded even as they are executed.
Use \\[end-kbd-macro] to finish recording and make the macro available.
Use \\[name-last-kbd-macro] to give it a permanent name.
Non-nil arg (prefix arg) means append to last macro defined;
this begins by re-executing that macro as if you typed it again.
If optional second arg, NO-EXEC, is non-nil, do not re-execute last
macro before appending to it.  */)
  (Lisp_Object append, Lisp_Object no_exec)
{
  if (!NILP (KVAR (current_kboard, defining_kbd_macro)))
    error ("Already defining kbd macro");

  if (!current_kboard->kbd_macro_buffer)
    {
      current_kboard->kbd_macro_buffer = xmalloc (30 * word_size);
      current_kboard->kbd_macro_bufsize = 30;
      current_kboard->kbd_macro_ptr = current_kboard->kbd_macro_buffer;
      current_kboard->kbd_macro_end = current_kboard->kbd_macro_buffer;
    }
  update_mode_lines = 19;
  if (NILP (append))
    {
      if (current_kboard->kbd_macro_bufsize > 200)
	{
	  current_kboard->kbd_macro_buffer
	    = xrealloc (current_kboard->kbd_macro_buffer,
			30 * word_size);
	  current_kboard->kbd_macro_bufsize = 30;
	}
      current_kboard->kbd_macro_ptr = current_kboard->kbd_macro_buffer;
      current_kboard->kbd_macro_end = current_kboard->kbd_macro_buffer;
      message1 ("Defining kbd macro...");
    }
  else
    {
      int incr = 30;
      ptrdiff_t i, len;
      bool cvt;

      /* Check the type of last-kbd-macro in case Lisp code changed it.  */
      len = CHECK_VECTOR_OR_STRING (KVAR (current_kboard, Vlast_kbd_macro));

      /* Copy last-kbd-macro into the buffer, in case the Lisp code
	 has put another macro there.  */
      if (current_kboard->kbd_macro_bufsize - incr < len)
	current_kboard->kbd_macro_buffer =
	  xpalloc (current_kboard->kbd_macro_buffer,
		   &current_kboard->kbd_macro_bufsize,
		   len - current_kboard->kbd_macro_bufsize + incr, -1,
		   sizeof *current_kboard->kbd_macro_buffer);

      /* Must convert meta modifier when copying string to vector.  */
      cvt = STRINGP (KVAR (current_kboard, Vlast_kbd_macro));
      for (i = 0; i < len; i++)
	{
	  Lisp_Object c;
	  c = Faref (KVAR (current_kboard, Vlast_kbd_macro), make_number (i));
	  if (cvt && NATNUMP (c) && (XFASTINT (c) & 0x80))
	    XSETFASTINT (c, CHAR_META | (XFASTINT (c) & ~0x80));
	  current_kboard->kbd_macro_buffer[i] = c;
	}

      current_kboard->kbd_macro_ptr = current_kboard->kbd_macro_buffer + len;
      current_kboard->kbd_macro_end = current_kboard->kbd_macro_ptr;

      /* Re-execute the macro we are appending to,
	 for consistency of behavior.  */
      if (NILP (no_exec))
	Fexecute_kbd_macro (KVAR (current_kboard, Vlast_kbd_macro),
			    make_number (1), Qnil);

      message1 ("Appending to kbd macro...");
    }
  kset_defining_kbd_macro (current_kboard, Qt);

  return Qnil;
}

/* Finish defining the current keyboard macro.  */

void
end_kbd_macro (void)
{
  kset_defining_kbd_macro (current_kboard, Qnil);
  update_mode_lines = 20;
  kset_last_kbd_macro
    (current_kboard,
     make_event_array ((current_kboard->kbd_macro_end
			- current_kboard->kbd_macro_buffer),
		       current_kboard->kbd_macro_buffer));
}

DEFUN ("end-kbd-macro", Fend_kbd_macro, Send_kbd_macro, 0, 2, "p",
       doc: /* Finish defining a keyboard macro.
The definition was started by \\[start-kbd-macro].
The macro is now available for use via \\[call-last-kbd-macro],
or it can be given a name with \\[name-last-kbd-macro] and then invoked
under that name.

With numeric arg, repeat macro now that many times,
counting the definition just completed as the first repetition.
An argument of zero means repeat until error.

In Lisp, optional second arg LOOPFUNC may be a function that is called prior to
each iteration of the macro.  Iteration stops if LOOPFUNC returns nil.  */)
  (Lisp_Object repeat, Lisp_Object loopfunc)
{
  if (NILP (KVAR (current_kboard, defining_kbd_macro)))
    error ("Not defining kbd macro");

  if (NILP (repeat))
    XSETFASTINT (repeat, 1);
  else
    CHECK_NUMBER (repeat);

  if (!NILP (KVAR (current_kboard, defining_kbd_macro)))
    {
      end_kbd_macro ();
      message1 ("Keyboard macro defined");
    }

  if (XFASTINT (repeat) == 0)
    Fexecute_kbd_macro (KVAR (current_kboard, Vlast_kbd_macro), repeat, loopfunc);
  else if (XINT (repeat) > 1)
    {
      XSETINT (repeat, XINT (repeat) - 1);
      Fexecute_kbd_macro (KVAR (current_kboard, Vlast_kbd_macro),
			  repeat, loopfunc);
    }
  return Qnil;
}

/* Store character c into kbd macro being defined.  */

void
store_kbd_macro_char (Lisp_Object c)
{
  struct kboard *kb = current_kboard;

  if (!NILP (KVAR (kb, defining_kbd_macro)))
    {
      if (kb->kbd_macro_ptr - kb->kbd_macro_buffer == kb->kbd_macro_bufsize)
	{
	  ptrdiff_t ptr_offset = kb->kbd_macro_ptr - kb->kbd_macro_buffer;
	  ptrdiff_t end_offset = kb->kbd_macro_end - kb->kbd_macro_buffer;
	  kb->kbd_macro_buffer = xpalloc (kb->kbd_macro_buffer,
					  &kb->kbd_macro_bufsize,
					  1, -1, sizeof *kb->kbd_macro_buffer);
	  kb->kbd_macro_ptr = kb->kbd_macro_buffer + ptr_offset;
	  kb->kbd_macro_end = kb->kbd_macro_buffer + end_offset;
	}

      *kb->kbd_macro_ptr++ = c;
    }
}

/* Declare that all chars stored so far in the kbd macro being defined
 really belong to it.  This is done in between editor commands.  */

void
finalize_kbd_macro_chars (void)
{
  current_kboard->kbd_macro_end = current_kboard->kbd_macro_ptr;
}

DEFUN ("cancel-kbd-macro-events", Fcancel_kbd_macro_events,
       Scancel_kbd_macro_events, 0, 0, 0,
       doc: /* Cancel the events added to a keyboard macro for this command.  */)
  (void)
{
  current_kboard->kbd_macro_ptr = current_kboard->kbd_macro_end;
  return Qnil;
}

DEFUN ("store-kbd-macro-event", Fstore_kbd_macro_event,
       Sstore_kbd_macro_event, 1, 1, 0,
       doc: /* Store EVENT into the keyboard macro being defined.  */)
  (Lisp_Object event)
{
  store_kbd_macro_char (event);
  return Qnil;
}
\f
DEFUN ("call-last-kbd-macro", Fcall_last_kbd_macro, Scall_last_kbd_macro,
       0, 2, "p",
       doc: /* Call the last keyboard macro that you defined with \\[start-kbd-macro].

A prefix argument serves as a repeat count.  Zero means repeat until error.

To make a macro permanent so you can call it even after
defining others, use \\[name-last-kbd-macro].

In Lisp, optional second arg LOOPFUNC may be a function that is called prior to
each iteration of the macro.  Iteration stops if LOOPFUNC returns nil.  */)
  (Lisp_Object prefix, Lisp_Object loopfunc)
{
  /* Don't interfere with recognition of the previous command
     from before this macro started.  */
  Vthis_command = KVAR (current_kboard, Vlast_command);
  /* C-x z after the macro should repeat the macro.  */
  Vreal_this_command = KVAR (current_kboard, Vlast_kbd_macro);

  if (! NILP (KVAR (current_kboard, defining_kbd_macro)))
    error ("Can't execute anonymous macro while defining one");
  else if (NILP (KVAR (current_kboard, Vlast_kbd_macro)))
    error ("No kbd macro has been defined");
  else
    Fexecute_kbd_macro (KVAR (current_kboard, Vlast_kbd_macro), prefix, loopfunc);

  /* command_loop_1 sets this to nil before it returns;
     get back the last command within the macro
     so that it can be last, again, after we return.  */
  Vthis_command = KVAR (current_kboard, Vlast_command);

  return Qnil;
}

/* Restore Vexecuting_kbd_macro and executing_kbd_macro_index.
   Called when the unwind-protect in Fexecute_kbd_macro gets invoked.  */

static void
pop_kbd_macro (Lisp_Object info)
{
  Lisp_Object tem;
  Vexecuting_kbd_macro = XCAR (info);
  tem = XCDR (info);
  executing_kbd_macro_index = XINT (XCAR (tem));
  Vreal_this_command = XCDR (tem);
  run_hook (Qkbd_macro_termination_hook);
}

DEFUN ("execute-kbd-macro", Fexecute_kbd_macro, Sexecute_kbd_macro, 1, 3, 0,
       doc: /* Execute MACRO as string of editor command characters.
MACRO can also be a vector of keyboard events.  If MACRO is a symbol,
its function definition is used.
COUNT is a repeat count, or nil for once, or 0 for infinite loop.

Optional third arg LOOPFUNC may be a function that is called prior to
each iteration of the macro.  Iteration stops if LOOPFUNC returns nil.  */)
  (Lisp_Object macro, Lisp_Object count, Lisp_Object loopfunc)
{
  Lisp_Object final;
  Lisp_Object tem;
  ptrdiff_t pdlcount = SPECPDL_INDEX ();
  EMACS_INT repeat = 1;
  EMACS_INT success_count = 0;

  executing_kbd_macro_iterations = 0;

  if (!NILP (count))
    {
      count = Fprefix_numeric_value (count);
      repeat = XINT (count);
    }

  final = indirect_function (macro);
  if (!STRINGP (final) && !VECTORP (final))
    error ("Keyboard macros must be strings or vectors");

  tem = Fcons (Vexecuting_kbd_macro,
	       Fcons (make_number (executing_kbd_macro_index),
		      Vreal_this_command));
  record_unwind_protect (pop_kbd_macro, tem);

  do
    {
      Vexecuting_kbd_macro = final;
      executing_kbd_macro = final;
      executing_kbd_macro_index = 0;

      kset_prefix_arg (current_kboard, Qnil);

      if (!NILP (loopfunc))
	{
	  Lisp_Object cont;
	  cont = call0 (loopfunc);
	  if (NILP (cont))
	    break;
	}

      command_loop_1 ();

      executing_kbd_macro_iterations = ++success_count;

      QUIT;
    }
  while (--repeat
	 && (STRINGP (Vexecuting_kbd_macro) || VECTORP (Vexecuting_kbd_macro)));

  executing_kbd_macro = Qnil;

  Vreal_this_command = Vexecuting_kbd_macro;

  return unbind_to (pdlcount, Qnil);
}
\f
void
init_macros (void)
{
  Vexecuting_kbd_macro = Qnil;
  executing_kbd_macro = Qnil;
}

void
syms_of_macros (void)
{
  DEFVAR_LISP ("kbd-macro-termination-hook", Vkbd_macro_termination_hook,
	       doc: /* Normal hook run whenever a keyboard macro terminates.
This is run whether the macro ends normally or prematurely due to an error.  */);
  Vkbd_macro_termination_hook = Qnil;
  DEFSYM (Qkbd_macro_termination_hook, "kbd-macro-termination-hook");

  defsubr (&Sstart_kbd_macro);
  defsubr (&Send_kbd_macro);
  defsubr (&Scall_last_kbd_macro);
  defsubr (&Sexecute_kbd_macro);
  defsubr (&Scancel_kbd_macro_events);
  defsubr (&Sstore_kbd_macro_event);

  DEFVAR_KBOARD ("defining-kbd-macro", defining_kbd_macro,
		 doc: /* Non-nil while a keyboard macro is being defined.  Don't set this!
The value is the symbol `append' while appending to the definition of
an existing macro.  */);

  DEFVAR_LISP ("executing-kbd-macro", Vexecuting_kbd_macro,
	       doc: /* Currently executing keyboard macro (string or vector).
This is nil when not executing a keyboard macro.  */);

  DEFVAR_INT ("executing-kbd-macro-index", executing_kbd_macro_index,
	      doc: /* Index in currently executing keyboard macro; undefined if none executing.  */);

  DEFVAR_KBOARD ("last-kbd-macro", Vlast_kbd_macro,
		 doc: /* Last kbd macro defined, as a string or vector; nil if none defined.  */);
}

debug log:

solving 3e43040 ...
found 3e43040 in https://yhetil.org/emacs/87h95olvg0.fsf@gmail.com/
found 0c703ba in https://git.savannah.gnu.org/cgit/emacs.git
preparing index
index prepared:
100644 0c703ba1a1f1d4fce234f50ade640519e5c099cc	src/macros.c

applying [1/1] https://yhetil.org/emacs/87h95olvg0.fsf@gmail.com/
diff --git a/src/macros.c b/src/macros.c
index 0c703ba..3e43040 100644

Checking patch src/macros.c...
Applied patch src/macros.c cleanly.

index at:
100644 3e430400528dbe83e72b33a983ee3f94df421ceb	src/macros.c

(*) Git path names are given by the tree(s) the blob belongs to.
    Blobs themselves have no identifier aside from the hash of its contents.^

Code repositories for project(s) associated with this external index

	https://git.savannah.gnu.org/cgit/emacs.git
	https://git.savannah.gnu.org/cgit/emacs/org-mode.git

This is an external index of several public inboxes,
see mirroring instructions on how to clone and mirror
all data and code used by this external index.