cmds.c 16.3 KB
Newer Older
Jim Blandy's avatar
Jim Blandy committed
1
/* Simple built-in editing commands.
2

Paul Eggert's avatar
Paul Eggert committed
3
Copyright (C) 1985, 1993-1998, 2001-2018 Free Software Foundation, Inc.
Jim Blandy's avatar
Jim Blandy committed
4 5 6

This file is part of GNU Emacs.

7
GNU Emacs is free software: you can redistribute it and/or modify
Jim Blandy's avatar
Jim Blandy committed
8
it under the terms of the GNU General Public License as published by
9 10
the Free Software Foundation, either version 3 of the License, or (at
your option) any later version.
Jim Blandy's avatar
Jim Blandy committed
11 12 13 14 15 16 17

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
18
along with GNU Emacs.  If not, see <https://www.gnu.org/licenses/>.  */
Jim Blandy's avatar
Jim Blandy committed
19 20


21
#include <config.h>
22

Jim Blandy's avatar
Jim Blandy committed
23 24
#include "lisp.h"
#include "commands.h"
25
#include "character.h"
26
#include "buffer.h"
Jim Blandy's avatar
Jim Blandy committed
27
#include "syntax.h"
28
#include "keyboard.h"
Stefan Monnier's avatar
Stefan Monnier committed
29
#include "keymap.h"
Andreas Schwab's avatar
Andreas Schwab committed
30
#include "frame.h"
Jim Blandy's avatar
Jim Blandy committed
31

32
static int internal_self_insert (int, EMACS_INT);
Jim Blandy's avatar
Jim Blandy committed
33

Karl Heuer's avatar
Karl Heuer committed
34
DEFUN ("forward-point", Fforward_point, Sforward_point, 1, 1, 0,
35
       doc: /* Return buffer position N characters after (before if N negative) point.  */)
Dan Nicolaescu's avatar
Dan Nicolaescu committed
36
  (Lisp_Object n)
Karl Heuer's avatar
Karl Heuer committed
37
{
38
  CHECK_FIXNUM (n);
Karl Heuer's avatar
Karl Heuer committed
39

Tom Tromey's avatar
Tom Tromey committed
40
  return make_fixnum (PT + XFIXNUM (n));
Karl Heuer's avatar
Karl Heuer committed
41 42
}

43
/* Add N to point; or subtract N if FORWARD is false.  N defaults to 1.
44 45
   Validate the new location.  Return nil.  */
static Lisp_Object
46
move_point (Lisp_Object n, bool forward)
47
{
Tom Tromey's avatar
Tom Tromey committed
48
  /* This used to just set point to point + XFIXNUM (n), and then check
49 50 51 52 53 54 55 56 57 58
     to see if it was within boundaries.  But now that SET_PT can
     potentially do a lot of stuff (calling entering and exiting
     hooks, etcetera), that's not a good approach.  So we validate the
     proposed position, then set point.  */

  EMACS_INT new_point;

  if (NILP (n))
    XSETFASTINT (n, 1);
  else
59
    CHECK_FIXNUM (n);
60

Tom Tromey's avatar
Tom Tromey committed
61
  new_point = PT + (forward ? XFIXNUM (n) : - XFIXNUM (n));
62 63 64 65 66 67 68 69 70 71 72 73 74 75 76 77

  if (new_point < BEGV)
    {
      SET_PT (BEGV);
      xsignal0 (Qbeginning_of_buffer);
    }
  if (new_point > ZV)
    {
      SET_PT (ZV);
      xsignal0 (Qend_of_buffer);
    }

  SET_PT (new_point);
  return Qnil;
}

Paul Eggert's avatar
Paul Eggert committed
78
DEFUN ("forward-char", Fforward_char, Sforward_char, 0, 1, "^p",
79 80
       doc: /* Move point N characters forward (backward if N is negative).
On reaching end or beginning of buffer, stop and signal error.
Chong Yidong's avatar
Chong Yidong committed
81
Interactively, N is the numeric prefix argument.
82
If N is omitted or nil, move point 1 character forward.
83 84 85

Depending on the bidirectional context, the movement may be to the
right or to the left on the screen.  This is in contrast with
86
\\[right-char], which see.  */)
Dan Nicolaescu's avatar
Dan Nicolaescu committed
87
  (Lisp_Object n)
Jim Blandy's avatar
Jim Blandy committed
88
{
89
  return move_point (n, 1);
Jim Blandy's avatar
Jim Blandy committed
90 91
}

92
DEFUN ("backward-char", Fbackward_char, Sbackward_char, 0, 1, "^p",
93 94
       doc: /* Move point N characters backward (forward if N is negative).
On attempt to pass beginning or end of buffer, stop and signal error.
Chong Yidong's avatar
Chong Yidong committed
95
Interactively, N is the numeric prefix argument.
96
If N is omitted or nil, move point 1 character backward.
97 98 99

Depending on the bidirectional context, the movement may be to the
right or to the left on the screen.  This is in contrast with
100
\\[left-char], which see.  */)
Dan Nicolaescu's avatar
Dan Nicolaescu committed
101
  (Lisp_Object n)
Jim Blandy's avatar
Jim Blandy committed
102
{
103
  return move_point (n, 0);
Jim Blandy's avatar
Jim Blandy committed
104 105
}

Paul Eggert's avatar
Paul Eggert committed
106
DEFUN ("forward-line", Fforward_line, Sforward_line, 0, 1, "^p",
107
       doc: /* Move N lines forward (backward if N is negative).
108
Precisely, if point is on line I, move to the start of line I + N
109
\("start of line" in the logical order).
110
If there isn't room, go as far as possible (no error).
111

112
Returns the count of lines left to move.  If moving forward,
113 114 115 116 117 118 119 120 121
that is N minus number of lines moved; if backward, N plus number
moved.

Exception: With positive N, a non-empty line at the end of the
buffer, or of its accessible portion, counts as one line
successfully moved (for the return value).  This means that the
function will move point to the end of such a line and will count
it as a line moved across, even though there is no next line to
go to its beginning.  */)
Dan Nicolaescu's avatar
Dan Nicolaescu committed
122
  (Lisp_Object n)
Jim Blandy's avatar
Jim Blandy committed
123
{
124
  ptrdiff_t opoint = PT, pos, pos_byte, shortage, count;
Jim Blandy's avatar
Jim Blandy committed
125

Jim Blandy's avatar
Jim Blandy committed
126
  if (NILP (n))
Jim Blandy's avatar
Jim Blandy committed
127 128 129
    count = 1;
  else
    {
130
      CHECK_FIXNUM (n);
Tom Tromey's avatar
Tom Tromey committed
131
      count = XFIXNUM (n);
Jim Blandy's avatar
Jim Blandy committed
132 133
    }

134
  shortage = scan_newline_from_point (count, &pos, &pos_byte);
135

136 137
  SET_PT_BOTH (pos, pos_byte);

Jim Blandy's avatar
Jim Blandy committed
138
  if (shortage > 0
139
      && (count <= 0
Jim Blandy's avatar
Jim Blandy committed
140
	  || (ZV > BEGV
141 142
	      && PT != opoint
	      && (FETCH_BYTE (PT_BYTE - 1) != '\n'))))
Jim Blandy's avatar
Jim Blandy committed
143
    shortage--;
144

145
  return make_fixnum (count <= 0 ? - shortage : shortage);
Jim Blandy's avatar
Jim Blandy committed
146 147
}

148
DEFUN ("beginning-of-line", Fbeginning_of_line, Sbeginning_of_line, 0, 1, "^p",
149
       doc: /* Move point to beginning of current line (in the logical order).
150 151 152
With argument N not nil or 1, move forward N - 1 lines first.
If point reaches the beginning or end of buffer, it stops there.

153
This function constrains point to the current field unless this moves
154 155
point to a different line than the original, unconstrained result.
If N is nil or 1, and a front-sticky field starts at point, the point
156
does not move.  To ignore field boundaries bind
157 158 159
`inhibit-field-text-motion' to t, or use the `forward-line' function
instead.  For instance, `(forward-line 0)' does the same thing as
`(beginning-of-line)', except that it ignores field boundaries.  */)
Dan Nicolaescu's avatar
Dan Nicolaescu committed
160
  (Lisp_Object n)
Jim Blandy's avatar
Jim Blandy committed
161
{
Jim Blandy's avatar
Jim Blandy committed
162
  if (NILP (n))
163
    XSETFASTINT (n, 1);
Jim Blandy's avatar
Jim Blandy committed
164
  else
165
    CHECK_FIXNUM (n);
Jim Blandy's avatar
Jim Blandy committed
166

Tom Tromey's avatar
Tom Tromey committed
167
  SET_PT (XFIXNUM (Fline_beginning_position (n)));
168

Jim Blandy's avatar
Jim Blandy committed
169 170 171
  return Qnil;
}

Paul Eggert's avatar
Paul Eggert committed
172
DEFUN ("end-of-line", Fend_of_line, Send_of_line, 0, 1, "^p",
173
       doc: /* Move point to end of current line (in the logical order).
174 175
With argument N not nil or 1, move forward N - 1 lines first.
If point reaches the beginning or end of buffer, it stops there.
Kenichi Handa's avatar
Kenichi Handa committed
176
To ignore intangibility, bind `inhibit-point-motion-hooks' to t.
177

178 179 180 181 182
This function constrains point to the current field unless this moves
point to a different line than the original, unconstrained result.  If
N is nil or 1, and a rear-sticky field ends at point, the point does
not move.  To ignore field boundaries bind `inhibit-field-text-motion'
to t.  */)
Dan Nicolaescu's avatar
Dan Nicolaescu committed
183
  (Lisp_Object n)
Jim Blandy's avatar
Jim Blandy committed
184
{
185
  ptrdiff_t newpos;
186

Jim Blandy's avatar
Jim Blandy committed
187
  if (NILP (n))
188
    XSETFASTINT (n, 1);
Jim Blandy's avatar
Jim Blandy committed
189
  else
190
    CHECK_FIXNUM (n);
Jim Blandy's avatar
Jim Blandy committed
191

192 193
  while (1)
    {
Tom Tromey's avatar
Tom Tromey committed
194
      newpos = XFIXNUM (Fline_end_position (n));
195 196 197 198 199 200 201 202 203 204 205 206 207 208 209 210 211 212
      SET_PT (newpos);

      if (PT > newpos
	  && FETCH_CHAR (PT - 1) == '\n')
	{
	  /* If we skipped over a newline that follows
	     an invisible intangible run,
	     move back to the last tangible position
	     within the line.  */

	  SET_PT (PT - 1);
	  break;
	}
      else if (PT > newpos && PT < ZV
	       && FETCH_CHAR (PT) != '\n')
	/* If we skipped something intangible
	   and now we're not really at eol,
	   keep going.  */
213
	n = make_fixnum (1);
214 215 216
      else
	break;
    }
Jim Blandy's avatar
Jim Blandy committed
217 218 219 220 221

  return Qnil;
}

DEFUN ("delete-char", Fdelete_char, Sdelete_char, 1, 2, "p\nP",
222 223 224
       doc: /* Delete the following N characters (previous if N is negative).
Optional second arg KILLFLAG non-nil means kill instead (save in kill ring).
Interactively, N is the prefix arg, and KILLFLAG is set if
225 226
N was explicitly specified.

227 228
The command `delete-forward-char' is preferable for interactive use, e.g.
because it respects values of `delete-active-region' and `overwrite-mode'.  */)
Dan Nicolaescu's avatar
Dan Nicolaescu committed
229
  (Lisp_Object n, Lisp_Object killflag)
Jim Blandy's avatar
Jim Blandy committed
230
{
231
  EMACS_INT pos;
Karl Heuer's avatar
Karl Heuer committed
232

233
  CHECK_FIXNUM (n);
Jim Blandy's avatar
Jim Blandy committed
234

Tom Tromey's avatar
Tom Tromey committed
235
  if (eabs (XFIXNUM (n)) < 2)
236
    call0 (Qundo_auto_amalgamate);
237

Tom Tromey's avatar
Tom Tromey committed
238
  pos = PT + XFIXNUM (n);
Jim Blandy's avatar
Jim Blandy committed
239
  if (NILP (killflag))
Jim Blandy's avatar
Jim Blandy committed
240
    {
Tom Tromey's avatar
Tom Tromey committed
241
      if (XFIXNUM (n) < 0)
Jim Blandy's avatar
Jim Blandy committed
242
	{
Karl Heuer's avatar
Karl Heuer committed
243
	  if (pos < BEGV)
244
	    xsignal0 (Qbeginning_of_buffer);
Jim Blandy's avatar
Jim Blandy committed
245
	  else
Karl Heuer's avatar
Karl Heuer committed
246
	    del_range (pos, PT);
Jim Blandy's avatar
Jim Blandy committed
247 248 249
	}
      else
	{
Karl Heuer's avatar
Karl Heuer committed
250
	  if (pos > ZV)
251
	    xsignal0 (Qend_of_buffer);
Jim Blandy's avatar
Jim Blandy committed
252
	  else
Karl Heuer's avatar
Karl Heuer committed
253
	    del_range (PT, pos);
Jim Blandy's avatar
Jim Blandy committed
254 255 256 257 258 259 260 261 262
	}
    }
  else
    {
      call1 (Qkill_forward_chars, n);
    }
  return Qnil;
}

263 264
/* Note that there's code in command_loop_1 which typically avoids
   calling this.  */
Jim Blandy's avatar
Jim Blandy committed
265
DEFUN ("self-insert-command", Fself_insert_command, Sself_insert_command, 1, 1, "p",
266
       doc: /* Insert the character you type.
267
Whichever character you type to run this command is inserted.
268
The numeric prefix argument N says how many times to repeat the insertion.
269 270
Before insertion, `expand-abbrev' is executed if the inserted character does
not have word syntax and the previous character in the buffer does.
271 272 273 274
After insertion, `internal-auto-fill' is called if
`auto-fill-function' is non-nil and if the `auto-fill-chars' table has
a non-nil value for the inserted character.  At the end, it runs
`post-self-insert-hook'.  */)
Dan Nicolaescu's avatar
Dan Nicolaescu committed
275
  (Lisp_Object n)
Jim Blandy's avatar
Jim Blandy committed
276
{
277
  CHECK_FIXNUM (n);
278

Tom Tromey's avatar
Tom Tromey committed
279 280
  if (XFIXNUM (n) < 0)
    error ("Negative repetition argument %"pI"d", XFIXNUM (n));
281

Tom Tromey's avatar
Tom Tromey committed
282
  if (XFIXNAT (n) < 2)
283
    call0 (Qundo_auto_amalgamate);
Jim Blandy's avatar
Jim Blandy committed
284 285

  /* Barf if the key that invoked this was not a character.  */
286
  if (!CHARACTERP (last_command_event))
Jim Blandy's avatar
Jim Blandy committed
287
    bitch_at_user ();
288
  else {
289
    int character = translate_char (Vtranslation_table_for_input,
Tom Tromey's avatar
Tom Tromey committed
290 291
				    XFIXNUM (last_command_event));
    int val = internal_self_insert (character, XFIXNAT (n));
292
    if (val == 2)
293
      Fset (Qundo_auto__this_command_amalgamating, Qnil);
294
    frame_make_pointer_invisible (SELECTED_FRAME ());
295
  }
Jim Blandy's avatar
Jim Blandy committed
296 297 298 299

  return Qnil;
}

300
/* Insert N times character C
301 302

   If this insertion is suitable for direct output (completely simple),
303 304
   return 0.  A value of 1 indicates this *might* not have been simple.
   A value of 2 means this did things that call for an undo boundary.  */
305

306
static int
307
internal_self_insert (int c, EMACS_INT n)
Jim Blandy's avatar
Jim Blandy committed
308 309 310 311
{
  int hairy = 0;
  Lisp_Object tem;
  register enum syntaxcode synt;
312
  Lisp_Object overwrite;
Karl Heuer's avatar
Karl Heuer committed
313 314 315
  /* Length of multi-byte form of C.  */
  int len;
  /* Working buffer and pointer for multi-byte form of C.  */
316
  unsigned char str[MAX_MULTIBYTE_LENGTH];
317 318
  ptrdiff_t chars_to_delete = 0;
  ptrdiff_t spaces_to_insert = 0;
Jim Blandy's avatar
Jim Blandy committed
319

Tom Tromey's avatar
Tom Tromey committed
320
  overwrite = BVAR (current_buffer, overwrite_mode);
321
  if (!NILP (Vbefore_change_functions) || !NILP (Vafter_change_functions))
Jim Blandy's avatar
Jim Blandy committed
322 323
    hairy = 1;

Karl Heuer's avatar
Karl Heuer committed
324
  /* At first, get multi-byte form of C in STR.  */
Tom Tromey's avatar
Tom Tromey committed
325
  if (!NILP (BVAR (current_buffer, enable_multibyte_characters)))
326
    {
327
      len = CHAR_STRING (c, str);
328 329 330 331
      if (len == 1)
	/* If C has modifier bits, this makes C an appropriate
           one-byte char.  */
	c = *str;
332
    }
Karl Heuer's avatar
Karl Heuer committed
333
  else
334
    {
335
      str[0] = SINGLE_BYTE_CHAR_P (c) ? c : CHAR_TO_BYTE8 (c);
336 337
      len = 1;
    }
338
  if (!NILP (overwrite)
Karl Heuer's avatar
Karl Heuer committed
339
      && PT < ZV)
Jim Blandy's avatar
Jim Blandy committed
340
    {
Karl Heuer's avatar
Karl Heuer committed
341 342 343 344 345 346 347 348 349
      /* In overwrite-mode, we substitute a character at point (C2,
	 hereafter) by C.  For that, we delete C2 in advance.  But,
	 just substituting C2 by C may move a remaining text in the
	 line to the right or to the left, which is not preferable.
	 So we insert more spaces or delete more characters in the
	 following cases: if C is narrower than C2, after deleting C2,
	 we fill columns with spaces, if C is wider than C2, we delete
	 C2 and several characters following C2.  */

350 351 352
      /* This is the character after point.  */
      int c2 = FETCH_CHAR (PT_BYTE);

353 354
      int cwidth;

355 356 357 358 359
      /* Overwriting in binary-mode always replaces C2 by C.
	 Overwriting in textual-mode doesn't always do that.
	 It inserts newlines in the usual way,
	 and inserts any character at end of line
	 or before a tab if it doesn't use the whole width of the tab.  */
360
      if (EQ (overwrite, Qoverwrite_mode_binary))
361 362
	chars_to_delete = min (n, PTRDIFF_MAX);
      else if (c != '\n' && c2 != '\n'
Tom Tromey's avatar
Tom Tromey committed
363
	       && (cwidth = XFIXNAT (Fchar_width (make_fixnum (c)))) != 0)
Karl Heuer's avatar
Karl Heuer committed
364
	{
365 366 367
	  ptrdiff_t pos = PT;
	  ptrdiff_t pos_byte = PT_BYTE;
	  ptrdiff_t curcol = current_column ();
368

369
	  if (n <= (min (MOST_POSITIVE_FIXNUM, PTRDIFF_MAX) - curcol) / cwidth)
370
	    {
371 372 373 374 375 376 377 378 379 380
	      /* Column the cursor should be placed at after this insertion.
		 The value should be calculated only when necessary.  */
	      ptrdiff_t target_clm = curcol + n * cwidth;

	      /* The actual cursor position after the trial of moving
		 to column TARGET_CLM.  It is greater than TARGET_CLM
		 if the TARGET_CLM is middle of multi-column
		 character.  In that case, the new point is set after
		 that character.  */
	      ptrdiff_t actual_clm
Tom Tromey's avatar
Tom Tromey committed
381
		= XFIXNAT (Fmove_to_column (make_fixnum (target_clm), Qnil));
382 383 384 385 386 387 388 389 390 391 392 393 394 395 396 397 398

	      chars_to_delete = PT - pos;

	      if (actual_clm > target_clm)
		{
		  /* We will delete too many columns.  Let's fill columns
		     by spaces so that the remaining text won't move.  */
		  ptrdiff_t actual = PT_BYTE;
		  DEC_POS (actual);
		  if (FETCH_CHAR (actual) == '\t')
		    /* Rather than add spaces, let's just keep the tab. */
		    chars_to_delete--;
		  else
		    spaces_to_insert = actual_clm - target_clm;
		}

	      SET_PT_BOTH (pos, pos_byte);
399
	    }
Karl Heuer's avatar
Karl Heuer committed
400
	}
401
      hairy = 2;
Jim Blandy's avatar
Jim Blandy committed
402
    }
403 404 405

  synt = SYNTAX (c);

Tom Tromey's avatar
Tom Tromey committed
406
  if (!NILP (BVAR (current_buffer, abbrev_mode))
407
      && synt != Sword
Tom Tromey's avatar
Tom Tromey committed
408
      && NILP (BVAR (current_buffer, read_only))
409
      && PT > BEGV
Tom Tromey's avatar
Tom Tromey committed
410
      && (SYNTAX (!NILP (BVAR (current_buffer, enable_multibyte_characters))
Tom Tromey's avatar
Tom Tromey committed
411 412
		  ? XFIXNAT (Fprevious_char ())
		  : UNIBYTE_TO_CHAR (XFIXNAT (Fprevious_char ())))
Stefan Monnier's avatar
Stefan Monnier committed
413
	  == Sword))
Jim Blandy's avatar
Jim Blandy committed
414
    {
415
      EMACS_INT modiff = MODIFF;
416 417
      Lisp_Object sym;

Stefan Monnier's avatar
Stefan Monnier committed
418
      sym = call0 (Qexpand_abbrev);
419

Richard M. Stallman's avatar
Richard M. Stallman committed
420
      /* If we expanded an abbrev which has a hook,
421
	 and the hook has a non-nil `no-self-insert' property,
422
	 return right away--don't really self-insert.  */
423
      if (SYMBOLP (sym) && ! NILP (sym)
424 425
	  && ! NILP (XSYMBOL (sym)->u.s.function)
	  && SYMBOLP (XSYMBOL (sym)->u.s.function))
426 427
	{
	  Lisp_Object prop;
428
	  prop = Fget (XSYMBOL (sym)->u.s.function, intern ("no-self-insert"));
429
	  if (! NILP (prop))
430
	    return 1;
431 432
	}

433
      if (MODIFF != modiff)
434
	hairy = 2;
Jim Blandy's avatar
Jim Blandy committed
435
    }
436

437
  if (chars_to_delete)
438
    {
Tom Tromey's avatar
Tom Tromey committed
439
      int mc = ((NILP (BVAR (current_buffer, enable_multibyte_characters))
440 441
		 && SINGLE_BYTE_CHAR_P (c))
		? UNIBYTE_TO_CHAR (c) : c);
442
      Lisp_Object string = Fmake_string (make_fixnum (n), make_fixnum (mc),
443
					 Qnil);
Eli Zaretskii's avatar
Eli Zaretskii committed
444

445 446
      if (spaces_to_insert)
	{
447 448
	  tem = Fmake_string (make_fixnum (spaces_to_insert),
			      make_fixnum (' '), Qnil);
449
	  string = concat2 (string, tem);
450 451
	}

452
      replace_range (PT, PT + chars_to_delete, string, 1, 1, 1, 0);
453
      Fforward_char (make_fixnum (n));
454 455 456 457
    }
  else if (n > 1)
    {
      USE_SAFE_ALLOCA;
458
      char *strn, *p;
459
      SAFE_NALLOCA (strn, len, n);
460 461 462 463
      for (p = strn; n > 0; n--, p += len)
	memcpy (p, str, len);
      insert_and_inherit (strn, p - strn);
      SAFE_FREE ();
464
    }
465
  else if (n > 0)
466
    insert_and_inherit ((char *) str, len);
467

468 469 470
  if ((CHAR_TABLE_P (Vauto_fill_chars)
       ? !NILP (CHAR_TABLE_REF (Vauto_fill_chars, c))
       : (c == ' ' || c == '\n'))
Tom Tromey's avatar
Tom Tromey committed
471
      && !NILP (BVAR (current_buffer, auto_fill_function)))
Jim Blandy's avatar
Jim Blandy committed
472
    {
473
      Lisp_Object auto_fill_result;
474

Karl Heuer's avatar
Karl Heuer committed
475
      if (c == '\n')
476 477 478 479
	/* After inserting a newline, move to previous line and fill
	   that.  Must have the newline in place already so filling and
	   justification, if any, know where the end is going to be.  */
	SET_PT_BOTH (PT - 1, PT_BYTE - 1);
480
      auto_fill_result = call0 (Qinternal_auto_fill);
481 482
      /* Test PT < ZV in case the auto-fill-function is strange.  */
      if (c == '\n' && PT < ZV)
483
	SET_PT_BOTH (PT + 1, PT_BYTE + 1);
484
      if (!NILP (auto_fill_result))
485
	hairy = 2;
Jim Blandy's avatar
Jim Blandy committed
486
    }
487

Stefan Monnier's avatar
Stefan Monnier committed
488
  /* Run hooks for electric keys.  */
489
  run_hook (Qpost_self_insert_hook);
Stefan Monnier's avatar
Stefan Monnier committed
490

Jim Blandy's avatar
Jim Blandy committed
491 492 493 494 495
  return hairy;
}

/* module initialization */

Andreas Schwab's avatar
Andreas Schwab committed
496
void
497
syms_of_cmds (void)
Jim Blandy's avatar
Jim Blandy committed
498
{
499 500
  DEFSYM (Qinternal_auto_fill, "internal-auto-fill");

501
  DEFSYM (Qundo_auto_amalgamate, "undo-auto-amalgamate");
502 503 504
  DEFSYM (Qundo_auto__this_command_amalgamating,
          "undo-auto--this-command-amalgamating");

505
  DEFSYM (Qkill_forward_chars, "kill-forward-chars");
506 507

  /* A possible value for a buffer's overwrite-mode variable.  */
508
  DEFSYM (Qoverwrite_mode_binary, "overwrite-mode-binary");
509

510 511
  DEFSYM (Qexpand_abbrev, "expand-abbrev");
  DEFSYM (Qpost_self_insert_hook, "post-self-insert-hook");
512

513
  DEFVAR_LISP ("post-self-insert-hook", Vpost_self_insert_hook,
Stefan Monnier's avatar
Stefan Monnier committed
514
	       doc: /* Hook run at the end of `self-insert-command'.
515
This is run after inserting the character.  */);
Stefan Monnier's avatar
Stefan Monnier committed
516
  Vpost_self_insert_hook = Qnil;
517

Karl Heuer's avatar
Karl Heuer committed
518
  defsubr (&Sforward_point);
Jim Blandy's avatar
Jim Blandy committed
519 520 521 522 523 524 525 526 527 528
  defsubr (&Sforward_char);
  defsubr (&Sbackward_char);
  defsubr (&Sforward_line);
  defsubr (&Sbeginning_of_line);
  defsubr (&Send_of_line);

  defsubr (&Sdelete_char);
  defsubr (&Sself_insert_command);
}

Andreas Schwab's avatar
Andreas Schwab committed
529
void
530
keys_of_cmds (void)
Jim Blandy's avatar
Jim Blandy committed
531 532 533
{
  int n;

534
  initial_define_key (global_map, Ctl ('I'), "self-insert-command");
Jim Blandy's avatar
Jim Blandy committed
535 536
  for (n = 040; n < 0177; n++)
    initial_define_key (global_map, n, "self-insert-command");
537 538 539 540
#ifdef MSDOS
  for (n = 0200; n < 0240; n++)
    initial_define_key (global_map, n, "self-insert-command");
#endif
541
  for (n = 0240; n < 0400; n++)
542
    initial_define_key (global_map, n, "self-insert-command");
Jim Blandy's avatar
Jim Blandy committed
543 544 545 546 547 548

  initial_define_key (global_map, Ctl ('A'), "beginning-of-line");
  initial_define_key (global_map, Ctl ('B'), "backward-char");
  initial_define_key (global_map, Ctl ('E'), "end-of-line");
  initial_define_key (global_map, Ctl ('F'), "forward-char");
}