cmds.c 17.8 KB
Newer Older
Jim Blandy's avatar
Jim Blandy committed
1
/* Simple built-in editing commands.
2
   Copyright (C) 1985, 1993, 1994, 1995, 1996, 1997, 1998, 2001, 2002,
Glenn Morris's avatar
Glenn Morris committed
3
                 2003, 2004, 2005, 2006, 2007, 2008, 2009, 2010
Glenn Morris's avatar
Glenn Morris committed
4
                 Free Software Foundation, Inc.
Jim Blandy's avatar
Jim Blandy committed
5 6 7

This file is part of GNU Emacs.

8
GNU Emacs is free software: you can redistribute it and/or modify
Jim Blandy's avatar
Jim Blandy committed
9
it under the terms of the GNU General Public License as published by
10 11
the Free Software Foundation, either version 3 of the License, or
(at your option) any later version.
Jim Blandy's avatar
Jim Blandy committed
12 13 14 15 16 17 18

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
19
along with GNU Emacs.  If not, see <http://www.gnu.org/licenses/>.  */
Jim Blandy's avatar
Jim Blandy committed
20 21


22
#include <config.h>
23
#include <setjmp.h>
Jim Blandy's avatar
Jim Blandy committed
24 25 26
#include "lisp.h"
#include "commands.h"
#include "buffer.h"
27
#include "character.h"
Jim Blandy's avatar
Jim Blandy committed
28
#include "syntax.h"
Richard M. Stallman's avatar
Richard M. Stallman committed
29
#include "window.h"
30
#include "keyboard.h"
Stefan Monnier's avatar
Stefan Monnier committed
31
#include "keymap.h"
Andreas Schwab's avatar
Andreas Schwab committed
32
#include "dispextern.h"
Andreas Schwab's avatar
Andreas Schwab committed
33
#include "frame.h"
Jim Blandy's avatar
Jim Blandy committed
34 35 36

Lisp_Object Qkill_forward_chars, Qkill_backward_chars, Vblink_paren_function;

37 38 39
/* A possible value for a buffer's overwrite-mode variable.  */
Lisp_Object Qoverwrite_mode_binary;

40 41 42 43 44 45 46
/* Non-nil means put this face on the next self-inserting character.  */
Lisp_Object Vself_insert_face;

/* This is the command that set up Vself_insert_face.  */
Lisp_Object Vself_insert_face_command;

extern Lisp_Object Qface;
47
extern Lisp_Object Vtranslation_table_for_input;
Jim Blandy's avatar
Jim Blandy committed
48

Karl Heuer's avatar
Karl Heuer committed
49
DEFUN ("forward-point", Fforward_point, Sforward_point, 1, 1, 0,
50 51
       doc: /* Return buffer position N characters after (before if N negative) point.  */)
     (n)
Karl Heuer's avatar
Karl Heuer committed
52 53
     Lisp_Object n;
{
54
  CHECK_NUMBER (n);
Karl Heuer's avatar
Karl Heuer committed
55

56
  return make_number (PT + XINT (n));
Karl Heuer's avatar
Karl Heuer committed
57 58
}

59
DEFUN ("forward-char", Fforward_char, Sforward_char, 0, 1, "^p",
60 61 62 63 64
       doc: /* Move point N characters forward (backward if N is negative).
On reaching end or beginning of buffer, stop and signal error.

Depending on the bidirectional context, the movement may be to the
right or to the left on the screen.  This is in contrast with
65
\\[right-char], which see.  */)
66
     (n)
67
     Lisp_Object n;
Jim Blandy's avatar
Jim Blandy committed
68
{
69 70
  if (NILP (n))
    XSETFASTINT (n, 1);
Jim Blandy's avatar
Jim Blandy committed
71
  else
72
    CHECK_NUMBER (n);
Jim Blandy's avatar
Jim Blandy committed
73

74
  /* This used to just set point to point + XINT (n), and then check
75 76 77 78 79
     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.  */
  {
80
    int new_point = PT + XINT (n);
81 82 83 84

    if (new_point < BEGV)
      {
	SET_PT (BEGV);
85
	xsignal0 (Qbeginning_of_buffer);
86 87 88 89
      }
    if (new_point > ZV)
      {
	SET_PT (ZV);
90
	xsignal0 (Qend_of_buffer);
91 92 93 94 95
      }

    SET_PT (new_point);
  }

Jim Blandy's avatar
Jim Blandy committed
96 97 98
  return Qnil;
}

99
DEFUN ("backward-char", Fbackward_char, Sbackward_char, 0, 1, "^p",
100 101 102 103 104
       doc: /* Move point N characters backward (forward if N is negative).
On attempt to pass beginning or end of buffer, stop and signal error.

Depending on the bidirectional context, the movement may be to the
right or to the left on the screen.  This is in contrast with
105
\\[left-char], which see.  */)
106
     (n)
107
     Lisp_Object n;
Jim Blandy's avatar
Jim Blandy committed
108
{
109 110
  if (NILP (n))
    XSETFASTINT (n, 1);
Jim Blandy's avatar
Jim Blandy committed
111
  else
112
    CHECK_NUMBER (n);
Jim Blandy's avatar
Jim Blandy committed
113

114 115
  XSETINT (n, - XINT (n));
  return Fforward_char (n);
Jim Blandy's avatar
Jim Blandy committed
116 117
}

118
DEFUN ("forward-line", Fforward_line, Sforward_line, 0, 1, "^p",
119 120 121 122 123 124
       doc: /* Move N lines forward (backward if N is negative).
Precisely, if point is on line I, move to the start of line I + N.
If there isn't room, go as far as possible (no error).
Returns the count of lines left to move.  If moving forward,
that is N - number of lines moved; if backward, N + number moved.
With positive N, a non-empty line at the end counts as one line
125
successfully moved (for the return value).  */)
126
     (n)
Jim Blandy's avatar
Jim Blandy committed
127 128
     Lisp_Object n;
{
129 130 131
  int opoint = PT, opoint_byte = PT_BYTE;
  int pos, pos_byte;
  int count, shortage;
Jim Blandy's avatar
Jim Blandy committed
132

Jim Blandy's avatar
Jim Blandy committed
133
  if (NILP (n))
Jim Blandy's avatar
Jim Blandy committed
134 135 136
    count = 1;
  else
    {
137
      CHECK_NUMBER (n);
Jim Blandy's avatar
Jim Blandy committed
138 139 140
      count = XINT (n);
    }

141 142 143 144 145 146 147 148 149 150 151 152 153
  if (count <= 0)
    shortage = scan_newline (PT, PT_BYTE, BEGV, BEGV_BYTE, count - 1, 1);
  else
    shortage = scan_newline (PT, PT_BYTE, ZV, ZV_BYTE, count, 1);

  /* Since scan_newline does TEMP_SET_PT_BOTH,
     and we want to set PT "for real",
     go back to the old point and then come back here.  */
  pos = PT;
  pos_byte = PT_BYTE;
  TEMP_SET_PT_BOTH (opoint, opoint_byte);
  SET_PT_BOTH (pos, pos_byte);

Jim Blandy's avatar
Jim Blandy committed
154
  if (shortage > 0
155
      && (count <= 0
Jim Blandy's avatar
Jim Blandy committed
156
	  || (ZV > BEGV
157 158
	      && PT != opoint
	      && (FETCH_BYTE (PT_BYTE - 1) != '\n'))))
Jim Blandy's avatar
Jim Blandy committed
159
    shortage--;
160 161

  return make_number (count <= 0 ? - shortage : shortage);
Jim Blandy's avatar
Jim Blandy committed
162 163
}

164
DEFUN ("beginning-of-line", Fbeginning_of_line, Sbeginning_of_line, 0, 1, "^p",
165 166 167 168
       doc: /* Move point to beginning of current line.
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.

169
This function constrains point to the current field unless this moves
170 171
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
172
does not move.  To ignore field boundaries bind
173 174 175
`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.  */)
176
     (n)
Jim Blandy's avatar
Jim Blandy committed
177 178
     Lisp_Object n;
{
Jim Blandy's avatar
Jim Blandy committed
179
  if (NILP (n))
180
    XSETFASTINT (n, 1);
Jim Blandy's avatar
Jim Blandy committed
181
  else
182
    CHECK_NUMBER (n);
Jim Blandy's avatar
Jim Blandy committed
183

184
  SET_PT (XINT (Fline_beginning_position (n)));
185

Jim Blandy's avatar
Jim Blandy committed
186 187 188
  return Qnil;
}

189
DEFUN ("end-of-line", Fend_of_line, Send_of_line, 0, 1, "^p",
190 191 192
       doc: /* Move point to end of current line.
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
193
To ignore intangibility, bind `inhibit-point-motion-hooks' to t.
194

195 196 197 198 199
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.  */)
200
     (n)
Jim Blandy's avatar
Jim Blandy committed
201 202
     Lisp_Object n;
{
203 204
  int newpos;

Jim Blandy's avatar
Jim Blandy committed
205
  if (NILP (n))
206
    XSETFASTINT (n, 1);
Jim Blandy's avatar
Jim Blandy committed
207
  else
208
    CHECK_NUMBER (n);
Jim Blandy's avatar
Jim Blandy committed
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
  while (1)
    {
      newpos = XINT (Fline_end_position (n));
      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.  */
	n = make_number (1);
      else
	break;
    }
Jim Blandy's avatar
Jim Blandy committed
235 236 237 238 239

  return Qnil;
}

DEFUN ("delete-char", Fdelete_char, Sdelete_char, 1, 2, "p\nP",
240 241 242
       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
243 244 245
N was explicitly specified.

The command `delete-forward' is preferable for interactive use.  */)
246
     (n, killflag)
Jim Blandy's avatar
Jim Blandy committed
247 248
     Lisp_Object n, killflag;
{
Karl Heuer's avatar
Karl Heuer committed
249 250
  int pos;

251
  CHECK_NUMBER (n);
Jim Blandy's avatar
Jim Blandy committed
252

253
  pos = PT + XINT (n);
Jim Blandy's avatar
Jim Blandy committed
254
  if (NILP (killflag))
Jim Blandy's avatar
Jim Blandy committed
255 256 257
    {
      if (XINT (n) < 0)
	{
Karl Heuer's avatar
Karl Heuer committed
258
	  if (pos < BEGV)
259
	    xsignal0 (Qbeginning_of_buffer);
Jim Blandy's avatar
Jim Blandy committed
260
	  else
Karl Heuer's avatar
Karl Heuer committed
261
	    del_range (pos, PT);
Jim Blandy's avatar
Jim Blandy committed
262 263 264
	}
      else
	{
Karl Heuer's avatar
Karl Heuer committed
265
	  if (pos > ZV)
266
	    xsignal0 (Qend_of_buffer);
Jim Blandy's avatar
Jim Blandy committed
267
	  else
Karl Heuer's avatar
Karl Heuer committed
268
	    del_range (PT, pos);
Jim Blandy's avatar
Jim Blandy committed
269 270 271 272 273 274 275 276 277
	}
    }
  else
    {
      call1 (Qkill_forward_chars, n);
    }
  return Qnil;
}

278
static int nonundocount;
279

280 281
/* Note that there's code in command_loop_1 which typically avoids
   calling this.  */
Jim Blandy's avatar
Jim Blandy committed
282
DEFUN ("self-insert-command", Fself_insert_command, Sself_insert_command, 1, 1, "p",
283
       doc: /* Insert the character you type.
284 285 286 287 288
Whichever character you type to run this command is inserted.
Before insertion, `expand-abbrev' is executed if the inserted character does
not have word syntax and the previous character in the buffer does.
After insertion, the value of `auto-fill-function' is called if the
`auto-fill-chars' table has a non-nil value for the inserted character.  */)
289
     (n)
290
     Lisp_Object n;
Jim Blandy's avatar
Jim Blandy committed
291
{
292
  int remove_boundary = 1;
Dan Nicolaescu's avatar
Dan Nicolaescu committed
293
  CHECK_NUMBER (n);
294 295 296 297 298 299 300 301 302 303 304 305 306 307 308 309 310 311 312 313

  if (!EQ (Vthis_command, current_kboard->Vlast_command))
    nonundocount = 0;

  if (NILP (Vexecuting_kbd_macro)
      && !EQ (minibuf_window, selected_window))
    {
      if (nonundocount <= 0 || nonundocount >= 20)
	{
	  remove_boundary = 0;
	  nonundocount = 0;
	}
      nonundocount++;
    }

  if (remove_boundary
      && CONSP (current_buffer->undo_list)
      && NILP (XCAR (current_buffer->undo_list)))
    /* Remove the undo_boundary that was just pushed.  */
    current_buffer->undo_list = XCDR (current_buffer->undo_list);
Jim Blandy's avatar
Jim Blandy committed
314 315

  /* Barf if the key that invoked this was not a character.  */
316
  if (!CHARACTERP (last_command_event))
Jim Blandy's avatar
Jim Blandy committed
317
    bitch_at_user ();
318 319
  {
    int character = translate_char (Vtranslation_table_for_input,
320
				    XINT (last_command_event));
321
    if (XINT (n) >= 2 && NILP (current_buffer->overwrite_mode))
Jim Blandy's avatar
Jim Blandy committed
322
      {
323 324 325 326 327 328
	XSETFASTINT (n, XFASTINT (n) - 2);
	/* The first one might want to expand an abbrev.  */
	internal_self_insert (character, 1);
	/* The bulk of the copies of this char can be inserted simply.
	   We don't have to handle a user-specified face specially
	   because it will get inherited from the first char inserted.  */
329
	Finsert_char (make_number (character), n, Qt);
330 331
	/* The last one might want to auto-fill.  */
	internal_self_insert (character, 0);
Jim Blandy's avatar
Jim Blandy committed
332
      }
333 334 335
    else
      while (XINT (n) > 0)
	{
336
	  int val;
337 338
	  /* Ok since old and new vals both nonneg */
	  XSETFASTINT (n, XFASTINT (n) - 1);
339 340 341 342
	  val = internal_self_insert (character, XFASTINT (n) != 0);
	  if (val == 2)
	    nonundocount = 0;
	  frame_make_pointer_invisible ();
343 344
	}
  }
Jim Blandy's avatar
Jim Blandy committed
345 346 347 348

  return Qnil;
}

Karl Heuer's avatar
Karl Heuer committed
349
/* Insert character C.  If NOAUTOFILL is nonzero, don't do autofill
350 351 352
   even if it is enabled.

   If this insertion is suitable for direct output (completely simple),
353 354
   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.  */
355

Stefan Monnier's avatar
Stefan Monnier committed
356 357
static Lisp_Object Qexpand_abbrev;

Andreas Schwab's avatar
Andreas Schwab committed
358
int
Karl Heuer's avatar
Karl Heuer committed
359 360
internal_self_insert (c, noautofill)
     int c;
Jim Blandy's avatar
Jim Blandy committed
361 362 363 364 365
     int noautofill;
{
  int hairy = 0;
  Lisp_Object tem;
  register enum syntaxcode synt;
366
  Lisp_Object overwrite, string;
Karl Heuer's avatar
Karl Heuer committed
367 368 369
  /* Length of multi-byte form of C.  */
  int len;
  /* Working buffer and pointer for multi-byte form of C.  */
370
  unsigned char str[MAX_MULTIBYTE_LENGTH];
371
  int chars_to_delete = 0;
372
  int spaces_to_insert = 0;
Jim Blandy's avatar
Jim Blandy committed
373

374
  overwrite = current_buffer->overwrite_mode;
375
  if (!NILP (Vbefore_change_functions) || !NILP (Vafter_change_functions))
Jim Blandy's avatar
Jim Blandy committed
376 377
    hairy = 1;

Karl Heuer's avatar
Karl Heuer committed
378 379
  /* At first, get multi-byte form of C in STR.  */
  if (!NILP (current_buffer->enable_multibyte_characters))
380
    {
381
      len = CHAR_STRING (c, str);
382 383 384 385
      if (len == 1)
	/* If C has modifier bits, this makes C an appropriate
           one-byte char.  */
	c = *str;
386
    }
Karl Heuer's avatar
Karl Heuer committed
387
  else
388
    {
389 390 391
      str[0] = (SINGLE_BYTE_CHAR_P (c)
		? c
		: multibyte_char_to_unibyte (c, Qnil));
392 393
      len = 1;
    }
394
  if (!NILP (overwrite)
Karl Heuer's avatar
Karl Heuer committed
395
      && PT < ZV)
Jim Blandy's avatar
Jim Blandy committed
396
    {
Karl Heuer's avatar
Karl Heuer committed
397 398 399 400 401 402 403 404 405
      /* 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.  */

406 407 408 409
      /* This is the character after point.  */
      int c2 = FETCH_CHAR (PT_BYTE);

      /* Column the cursor should be placed at after this insertion.
Karl Heuer's avatar
Karl Heuer committed
410 411 412
         The correct value should be calculated only when necessary.  */
      int target_clm = 0;

413 414 415 416 417
      /* 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.  */
Karl Heuer's avatar
Karl Heuer committed
418 419 420
      if (EQ (overwrite, Qoverwrite_mode_binary)
	  || (c != '\n'
	      && c2 != '\n'
421 422 423
	      && ! (c2 == '\t'
		    && XINT (current_buffer->tab_width) > 0
		    && XFASTINT (current_buffer->tab_width) < 20
424
		    && (target_clm = ((int) current_column () /* iftc */
425
				      + XINT (Fchar_width (make_number (c)))),
426
			target_clm % XFASTINT (current_buffer->tab_width)))))
Karl Heuer's avatar
Karl Heuer committed
427
	{
428
	  int pos = PT;
429
	  int pos_byte = PT_BYTE;
430

Karl Heuer's avatar
Karl Heuer committed
431
	  if (target_clm == 0)
432
	    chars_to_delete = 1;
Karl Heuer's avatar
Karl Heuer committed
433 434 435 436 437 438 439
	  else
	    {
	      /* 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.  */
440 441
	      int actual_clm
		= XFASTINT (Fmove_to_column (make_number (target_clm), Qnil));
Karl Heuer's avatar
Karl Heuer committed
442

443
	      chars_to_delete = PT - pos;
444

Karl Heuer's avatar
Karl Heuer committed
445 446
	      if (actual_clm > target_clm)
		{
447
		  /* We will delete too many columns.  Let's fill columns
Karl Heuer's avatar
Karl Heuer committed
448
		     by spaces so that the remaining text won't move.  */
449
		  spaces_to_insert = actual_clm - target_clm;
Karl Heuer's avatar
Karl Heuer committed
450 451
		}
	    }
452
	  SET_PT_BOTH (pos, pos_byte);
Karl Heuer's avatar
Karl Heuer committed
453 454
	  hairy = 2;
	}
455
      hairy = 2;
Jim Blandy's avatar
Jim Blandy committed
456
    }
457 458 459

  synt = SYNTAX (c);

Jim Blandy's avatar
Jim Blandy committed
460
  if (!NILP (current_buffer->abbrev_mode)
461
      && synt != Sword
Jim Blandy's avatar
Jim Blandy committed
462
      && NILP (current_buffer->read_only)
463 464 465
      && PT > BEGV
      && (!NILP (current_buffer->enable_multibyte_characters)
	  ? SYNTAX (XFASTINT (Fprevious_char ())) == Sword
466
	  : (SYNTAX (UNIBYTE_TO_CHAR (XFASTINT (Fprevious_char ())))
467
	     == Sword)))
Jim Blandy's avatar
Jim Blandy committed
468
    {
469
      int modiff = MODIFF;
470 471
      Lisp_Object sym;

Stefan Monnier's avatar
Stefan Monnier committed
472
      sym = call0 (Qexpand_abbrev);
473

Richard M. Stallman's avatar
Richard M. Stallman committed
474
      /* If we expanded an abbrev which has a hook,
475
	 and the hook has a non-nil `no-self-insert' property,
476
	 return right away--don't really self-insert.  */
477
      if (SYMBOLP (sym) && ! NILP (sym) && ! NILP (XSYMBOL (sym)->function)
478
	  && SYMBOLP (XSYMBOL (sym)->function))
479 480
	{
	  Lisp_Object prop;
481
	  prop = Fget (XSYMBOL (sym)->function, intern ("no-self-insert"));
482
	  if (! NILP (prop))
483
	    return 1;
484 485
	}

486
      if (MODIFF != modiff)
487
	hairy = 2;
Jim Blandy's avatar
Jim Blandy committed
488
    }
489

490
  if (chars_to_delete)
491
    {
492
      string = make_string_from_bytes (str, 1, len);
493 494 495 496 497 498 499
      if (spaces_to_insert)
	{
	  tem = Fmake_string (make_number (spaces_to_insert),
			      make_number (' '));
	  string = concat2 (tem, string);
	}

500
      replace_range (PT, PT + chars_to_delete, string, 1, 1, 1);
501
      Fforward_char (make_number (1 + spaces_to_insert));
502 503 504 505
    }
  else
    insert_and_inherit (str, len);

506 507 508
  if ((CHAR_TABLE_P (Vauto_fill_chars)
       ? !NILP (CHAR_TABLE_REF (Vauto_fill_chars, c))
       : (c == ' ' || c == '\n'))
Jim Blandy's avatar
Jim Blandy committed
509
      && !noautofill
510
      && !NILP (current_buffer->auto_fill_function))
Jim Blandy's avatar
Jim Blandy committed
511
    {
512 513
      Lisp_Object tem;

Karl Heuer's avatar
Karl Heuer committed
514
      if (c == '\n')
515 516 517 518
	/* 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);
519
      tem = call0 (current_buffer->auto_fill_function);
520 521
      /* Test PT < ZV in case the auto-fill-function is strange.  */
      if (c == '\n' && PT < ZV)
522
	SET_PT_BOTH (PT + 1, PT_BYTE + 1);
523 524
      if (!NILP (tem))
	hairy = 2;
Jim Blandy's avatar
Jim Blandy committed
525
    }
526 527 528

  /* If previous command specified a face to use, use it.  */
  if (!NILP (Vself_insert_face)
529
      && EQ (current_kboard->Vlast_command, Vself_insert_face_command))
530
    {
531 532
      Fput_text_property (make_number (PT - 1), make_number (PT),
			  Qface, Vself_insert_face, Qnil);
533 534
      Vself_insert_face = Qnil;
    }
535

Jim Blandy's avatar
Jim Blandy committed
536
  if ((synt == Sclose || synt == Smath)
537 538
      && !NILP (Vblink_paren_function) && INTERACTIVE
      && !noautofill)
Jim Blandy's avatar
Jim Blandy committed
539 540
    {
      call0 (Vblink_paren_function);
541
      hairy = 2;
Jim Blandy's avatar
Jim Blandy committed
542 543 544 545 546 547
    }
  return hairy;
}

/* module initialization */

Andreas Schwab's avatar
Andreas Schwab committed
548
void
Jim Blandy's avatar
Jim Blandy committed
549 550
syms_of_cmds ()
{
Dan Nicolaescu's avatar
Dan Nicolaescu committed
551
  Qkill_backward_chars = intern_c_string ("kill-backward-chars");
Jim Blandy's avatar
Jim Blandy committed
552 553
  staticpro (&Qkill_backward_chars);

Dan Nicolaescu's avatar
Dan Nicolaescu committed
554
  Qkill_forward_chars = intern_c_string ("kill-forward-chars");
Jim Blandy's avatar
Jim Blandy committed
555 556
  staticpro (&Qkill_forward_chars);

Dan Nicolaescu's avatar
Dan Nicolaescu committed
557
  Qoverwrite_mode_binary = intern_c_string ("overwrite-mode-binary");
558
  staticpro (&Qoverwrite_mode_binary);
559

Dan Nicolaescu's avatar
Dan Nicolaescu committed
560
  Qexpand_abbrev = intern_c_string ("expand-abbrev");
Stefan Monnier's avatar
Stefan Monnier committed
561 562
  staticpro (&Qexpand_abbrev);

563
  DEFVAR_LISP ("self-insert-face", &Vself_insert_face,
564 565
	       doc: /* If non-nil, set the face of the next self-inserting character to this.
See also `self-insert-face-command'.  */);
566 567 568
  Vself_insert_face = Qnil;

  DEFVAR_LISP ("self-insert-face-command", &Vself_insert_face_command,
569 570
	       doc: /* This is the command that set up `self-insert-face'.
If `last-command' does not equal this value, we ignore `self-insert-face'.  */);
571 572
  Vself_insert_face_command = Qnil;

Jim Blandy's avatar
Jim Blandy committed
573
  DEFVAR_LISP ("blink-paren-function", &Vblink_paren_function,
574 575
	       doc: /* Function called, if non-nil, whenever a close parenthesis is inserted.
More precisely, a char with closeparen syntax is self-inserted.  */);
Jim Blandy's avatar
Jim Blandy committed
576 577
  Vblink_paren_function = Qnil;

Karl Heuer's avatar
Karl Heuer committed
578
  defsubr (&Sforward_point);
Jim Blandy's avatar
Jim Blandy committed
579 580 581 582 583 584 585 586 587 588
  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
589
void
Jim Blandy's avatar
Jim Blandy committed
590 591 592 593
keys_of_cmds ()
{
  int n;

594
  nonundocount = 0;
595
  initial_define_key (global_map, Ctl ('I'), "self-insert-command");
Jim Blandy's avatar
Jim Blandy committed
596 597
  for (n = 040; n < 0177; n++)
    initial_define_key (global_map, n, "self-insert-command");
598 599 600 601
#ifdef MSDOS
  for (n = 0200; n < 0240; n++)
    initial_define_key (global_map, n, "self-insert-command");
#endif
602
  for (n = 0240; n < 0400; n++)
603
    initial_define_key (global_map, n, "self-insert-command");
Jim Blandy's avatar
Jim Blandy committed
604 605 606 607 608 609

  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");
}
Kenichi Handa's avatar
Kenichi Handa committed
610 611 612

/* arch-tag: 022ba3cd-67f9-4978-9c5d-7d2b18d8644e
   (do not change this comment) */