cmds.c 16.5 KB
Newer Older
Jim Blandy's avatar
Jim Blandy committed
1
/* Simple built-in editing commands.
2
   Copyright (C) 1985, 93, 94, 95, 1996 Free Software Foundation, Inc.
Jim Blandy's avatar
Jim Blandy committed
3 4 5 6 7

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
Jim Blandy's avatar
Jim Blandy committed
8
the Free Software Foundation; either version 2, or (at your option)
Jim Blandy's avatar
Jim Blandy committed
9 10 11 12 13 14 15 16 17
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
18 19
the Free Software Foundation, Inc., 59 Temple Place - Suite 330,
Boston, MA 02111-1307, USA.  */
Jim Blandy's avatar
Jim Blandy committed
20 21


22
#include <config.h>
Jim Blandy's avatar
Jim Blandy committed
23 24 25
#include "lisp.h"
#include "commands.h"
#include "buffer.h"
Karl Heuer's avatar
Karl Heuer committed
26
#include "charset.h"
Jim Blandy's avatar
Jim Blandy committed
27
#include "syntax.h"
Richard M. Stallman's avatar
Richard M. Stallman committed
28
#include "window.h"
29
#include "keyboard.h"
Jim Blandy's avatar
Jim Blandy committed
30 31 32

Lisp_Object Qkill_forward_chars, Qkill_backward_chars, Vblink_paren_function;

33 34 35
/* A possible value for a buffer's overwrite-mode variable.  */
Lisp_Object Qoverwrite_mode_binary;

36 37 38 39 40 41
/* 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;

42 43 44
/* Offset to add to a non-ASCII value when inserting it.  */
int nonascii_insert_offset;

45
extern Lisp_Object Qface;
Jim Blandy's avatar
Jim Blandy committed
46

Karl Heuer's avatar
Karl Heuer committed
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
/* Return buffer position which is N characters after `point'.  */
int
forward_point (n)
     int n;
{
  int pos = PT, c;

  if (!NILP (current_buffer->enable_multibyte_characters))
    {
      /* Simply adding N to `point' doesn't work because of multi-byte
	 form.  We had better not use INC_POS and DEC_POS because they
	 check the gap position every time.  But, for the moment, we
	 need working code.  */
      if (n > 0)
	{
	  while (pos < ZV && n--) INC_POS (pos);
	  if (pos < ZV) n++;
	}
      else
	{
	  while (pos > BEGV && n++) DEC_POS (pos);
	  if (pos > BEGV) n--;
	}
    }
  pos += n;

  return pos;
}

DEFUN ("forward-point", Fforward_point, Sforward_point, 1, 1, 0,
  "Return buffer position N characters after (before if N negative) point.")
  (n)
     Lisp_Object n;
{
  CHECK_NUMBER (n, 0);

  return make_number (forward_point (XINT (n)));
}

Jim Blandy's avatar
Jim Blandy committed
86
DEFUN ("forward-char", Fforward_char, Sforward_char, 0, 1, "p",
87
  "Move point right N characters (left if N is negative).\n\
Jim Blandy's avatar
Jim Blandy committed
88
On reaching end of buffer, stop and signal error.")
89 90
  (n)
     Lisp_Object n;
Jim Blandy's avatar
Jim Blandy committed
91
{
92 93
  if (NILP (n))
    XSETFASTINT (n, 1);
Jim Blandy's avatar
Jim Blandy committed
94
  else
95
    CHECK_NUMBER (n, 0);
Jim Blandy's avatar
Jim Blandy committed
96

97
  /* This used to just set point to point + XINT (n), and then check
98 99 100 101 102
     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.  */
  {
Karl Heuer's avatar
Karl Heuer committed
103
    int new_point = forward_point (XINT (n));
104 105 106 107 108 109 110 111 112 113 114 115 116 117 118

    if (new_point < BEGV)
      {
	SET_PT (BEGV);
	Fsignal (Qbeginning_of_buffer, Qnil);
      }
    if (new_point > ZV)
      {
	SET_PT (ZV);
	Fsignal (Qend_of_buffer, Qnil);
      }

    SET_PT (new_point);
  }

Jim Blandy's avatar
Jim Blandy committed
119 120 121 122
  return Qnil;
}

DEFUN ("backward-char", Fbackward_char, Sbackward_char, 0, 1, "p",
123
  "Move point left N characters (right if N is negative).\n\
Jim Blandy's avatar
Jim Blandy committed
124
On attempt to pass beginning or end of buffer, stop and signal error.")
125 126
  (n)
     Lisp_Object n;
Jim Blandy's avatar
Jim Blandy committed
127
{
128 129
  if (NILP (n))
    XSETFASTINT (n, 1);
Jim Blandy's avatar
Jim Blandy committed
130
  else
131
    CHECK_NUMBER (n, 0);
Jim Blandy's avatar
Jim Blandy committed
132

133 134
  XSETINT (n, - XINT (n));
  return Fforward_char (n);
Jim Blandy's avatar
Jim Blandy committed
135 136 137
}

DEFUN ("forward-line", Fforward_line, Sforward_line, 0, 1, "p",
138 139
  "Move N lines forward (backward if N is negative).\n\
Precisely, if point is on line I, move to the start of line I + N.\n\
Jim Blandy's avatar
Jim Blandy committed
140 141
If there isn't room, go as far as possible (no error).\n\
Returns the count of lines left to move.  If moving forward,\n\
142 143
that is N - number of lines moved; if backward, N + number moved.\n\
With positive N, a non-empty line at the end counts as one line\n\
Jim Blandy's avatar
Jim Blandy committed
144 145 146 147
  successfully moved (for the return value).")
  (n)
     Lisp_Object n;
{
148
  int pos2 = PT;
Jim Blandy's avatar
Jim Blandy committed
149 150 151
  int pos;
  int count, shortage, negp;

Jim Blandy's avatar
Jim Blandy committed
152
  if (NILP (n))
Jim Blandy's avatar
Jim Blandy committed
153 154 155 156 157 158 159 160
    count = 1;
  else
    {
      CHECK_NUMBER (n, 0);
      count = XINT (n);
    }

  negp = count <= 0;
161
  pos = scan_buffer ('\n', pos2, 0, count - negp, &shortage, 1);
Jim Blandy's avatar
Jim Blandy committed
162 163
  if (shortage > 0
      && (negp
Jim Blandy's avatar
Jim Blandy committed
164 165
	  || (ZV > BEGV
	      && pos != pos2
Karl Heuer's avatar
Karl Heuer committed
166
	      && FETCH_BYTE (pos - 1) != '\n')))
Jim Blandy's avatar
Jim Blandy committed
167 168 169 170 171 172 173 174
    shortage--;
  SET_PT (pos);
  return make_number (negp ? - shortage : shortage);
}

DEFUN ("beginning-of-line", Fbeginning_of_line, Sbeginning_of_line,
  0, 1, "p",
  "Move point to beginning of current line.\n\
175
With argument N not nil or 1, move forward N - 1 lines first.\n\
Jim Blandy's avatar
Jim Blandy committed
176 177 178 179
If scan reaches end of buffer, stop there without error.")
  (n)
     Lisp_Object n;
{
Jim Blandy's avatar
Jim Blandy committed
180
  if (NILP (n))
181
    XSETFASTINT (n, 1);
Jim Blandy's avatar
Jim Blandy committed
182 183 184
  else
    CHECK_NUMBER (n, 0);

185
  SET_PT (XINT (Fline_beginning_position (n)));
Jim Blandy's avatar
Jim Blandy committed
186 187 188 189 190 191
  return Qnil;
}

DEFUN ("end-of-line", Fend_of_line, Send_of_line,
  0, 1, "p",
  "Move point to end of current line.\n\
192
With argument N not nil or 1, move forward N - 1 lines first.\n\
Jim Blandy's avatar
Jim Blandy committed
193 194 195 196 197 198 199
If scan reaches end of buffer, stop there without error.")
  (n)
     Lisp_Object n;
{
  register int pos;
  register int stop;

Jim Blandy's avatar
Jim Blandy committed
200
  if (NILP (n))
201
    XSETFASTINT (n, 1);
Jim Blandy's avatar
Jim Blandy committed
202 203 204
  else
    CHECK_NUMBER (n, 0);

205
  SET_PT (XINT (Fline_end_position (n)));
Jim Blandy's avatar
Jim Blandy committed
206 207 208 209 210

  return Qnil;
}

DEFUN ("delete-char", Fdelete_char, Sdelete_char, 1, 2, "p\nP",
211
  "Delete the following N characters (previous if N is negative).\n\
Jim Blandy's avatar
Jim Blandy committed
212
Optional second arg KILLFLAG non-nil means kill instead (save in kill ring).\n\
213 214
Interactively, N is the prefix arg, and KILLFLAG is set if\n\
N was explicitly specified.")
Jim Blandy's avatar
Jim Blandy committed
215 216 217
  (n, killflag)
     Lisp_Object n, killflag;
{
Karl Heuer's avatar
Karl Heuer committed
218 219
  int pos;

Jim Blandy's avatar
Jim Blandy committed
220 221
  CHECK_NUMBER (n, 0);

Karl Heuer's avatar
Karl Heuer committed
222
  pos = forward_point (XINT (n));
Jim Blandy's avatar
Jim Blandy committed
223
  if (NILP (killflag))
Jim Blandy's avatar
Jim Blandy committed
224 225 226
    {
      if (XINT (n) < 0)
	{
Karl Heuer's avatar
Karl Heuer committed
227
	  if (pos < BEGV)
Jim Blandy's avatar
Jim Blandy committed
228 229
	    Fsignal (Qbeginning_of_buffer, Qnil);
	  else
Karl Heuer's avatar
Karl Heuer committed
230
	    del_range (pos, PT);
Jim Blandy's avatar
Jim Blandy committed
231 232 233
	}
      else
	{
Karl Heuer's avatar
Karl Heuer committed
234
	  if (pos > ZV)
Jim Blandy's avatar
Jim Blandy committed
235 236
	    Fsignal (Qend_of_buffer, Qnil);
	  else
Karl Heuer's avatar
Karl Heuer committed
237
	    del_range (PT, pos);
Jim Blandy's avatar
Jim Blandy committed
238 239 240 241 242 243 244 245 246 247 248
	}
    }
  else
    {
      call1 (Qkill_forward_chars, n);
    }
  return Qnil;
}

DEFUN ("delete-backward-char", Fdelete_backward_char, Sdelete_backward_char,
  1, 2, "p\nP",
249
  "Delete the previous N characters (following if N is negative).\n\
Jim Blandy's avatar
Jim Blandy committed
250
Optional second arg KILLFLAG non-nil means kill instead (save in kill ring).\n\
251 252
Interactively, N is the prefix arg, and KILLFLAG is set if\n\
N was explicitly specified.")
Jim Blandy's avatar
Jim Blandy committed
253 254 255
  (n, killflag)
     Lisp_Object n, killflag;
{
256
  Lisp_Object value;
257
  int deleted_special = 0;
Karl Heuer's avatar
Karl Heuer committed
258
  int pos, i;
259

Jim Blandy's avatar
Jim Blandy committed
260
  CHECK_NUMBER (n, 0);
261

262
  /* See if we are about to delete a tab or newline backwards.  */
Karl Heuer's avatar
Karl Heuer committed
263 264
  pos = PT;
  for (i = 0; i < XINT (n) && pos > BEGV; i++)
265
    {
Karl Heuer's avatar
Karl Heuer committed
266 267 268 269 270
      int c;

      DEC_POS (pos);
      c = FETCH_BYTE (pos);
      if (c == '\t' || c == '\n')
271
	{
272
	  deleted_special = 1;
273 274 275 276 277 278 279 280
	  break;
	}
    }

  /* In overwrite mode, back over columns while clearing them out,
     unless at end of line.  */
  if (XINT (n) > 0
      && ! NILP (current_buffer->overwrite_mode)
281
      && ! deleted_special
Karl Heuer's avatar
Karl Heuer committed
282
      && ! (PT == ZV || FETCH_BYTE (PT) == '\n'))
283
    {
Karl Heuer's avatar
Karl Heuer committed
284 285 286 287 288 289
      int column = current_column ();

      value = Fdelete_char (make_number (-XINT (n)), killflag);
      i = column - current_column ();
      Finsert_char (make_number (' '), i);
      SET_PT (PT - i);
290
    }
Karl Heuer's avatar
Karl Heuer committed
291 292
  else
    value = Fdelete_char (make_number (-XINT (n)), killflag);
293 294

  return value;
Jim Blandy's avatar
Jim Blandy committed
295 296 297 298 299
}

DEFUN ("self-insert-command", Fself_insert_command, Sself_insert_command, 1, 1, "p",
  "Insert the character you type.\n\
Whichever character you type to run this command is inserted.")
300 301
  (n)
     Lisp_Object n;
Jim Blandy's avatar
Jim Blandy committed
302
{
303 304
  int character = XINT (last_command_char);

305
  CHECK_NUMBER (n, 0);
Jim Blandy's avatar
Jim Blandy committed
306 307

  /* Barf if the key that invoked this was not a character.  */
308
  if (!INTEGERP (last_command_char))
Jim Blandy's avatar
Jim Blandy committed
309
    bitch_at_user ();
310
  else if (XINT (n) >= 2 && NILP (current_buffer->overwrite_mode))
311
    {
312 313 314 315 316 317 318 319
      int modified_char = character;
      /* Add the offset to the character, for Finsert_char.
	 We pass internal_self_insert the unmodified character
	 because it itself does this offsetting.  */
      if (modified_char >= 0200 && modified_char <= 0377
	  && ! NILP (current_buffer->enable_multibyte_characters))
	modified_char += nonascii_insert_offset;

320
      XSETFASTINT (n, XFASTINT (n) - 2);
321
      /* The first one might want to expand an abbrev.  */
322
      internal_self_insert (character, 1);
323 324 325
      /* 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.  */
326
      Finsert_char (make_number (modified_char), n, Qt);
327
      /* The last one might want to auto-fill.  */
328
      internal_self_insert (character, 0);
329
    }
Jim Blandy's avatar
Jim Blandy committed
330
  else
331
    while (XINT (n) > 0)
Jim Blandy's avatar
Jim Blandy committed
332
      {
333
	/* Ok since old and new vals both nonneg */
334
	XSETFASTINT (n, XFASTINT (n) - 1);
335
	internal_self_insert (character, XFASTINT (n) != 0);
Jim Blandy's avatar
Jim Blandy committed
336 337 338 339 340
      }

  return Qnil;
}

Karl Heuer's avatar
Karl Heuer committed
341
/* Insert character C.  If NOAUTOFILL is nonzero, don't do autofill
342 343 344
   even if it is enabled.

   If this insertion is suitable for direct output (completely simple),
345 346
   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.  */
347

Karl Heuer's avatar
Karl Heuer committed
348 349
internal_self_insert (c, noautofill)
     int c;
Jim Blandy's avatar
Jim Blandy committed
350 351 352 353 354 355
     int noautofill;
{
  extern Lisp_Object Fexpand_abbrev ();
  int hairy = 0;
  Lisp_Object tem;
  register enum syntaxcode synt;
356
  Lisp_Object overwrite;
Karl Heuer's avatar
Karl Heuer committed
357 358 359 360
  /* Length of multi-byte form of C.  */
  int len;
  /* Working buffer and pointer for multi-byte form of C.  */
  unsigned char workbuf[4], *str;
Jim Blandy's avatar
Jim Blandy committed
361

362 363 364 365
  if (c >= 0200 && c <= 0377
      && ! NILP (current_buffer->enable_multibyte_characters))
    c += nonascii_insert_offset;

366
  overwrite = current_buffer->overwrite_mode;
367 368
  if (!NILP (Vbefore_change_function) || !NILP (Vafter_change_function)
      || !NILP (Vbefore_change_functions) || !NILP (Vafter_change_functions))
Jim Blandy's avatar
Jim Blandy committed
369 370
    hairy = 1;

Karl Heuer's avatar
Karl Heuer committed
371 372 373 374 375 376
  /* At first, get multi-byte form of C in STR.  */
  if (!NILP (current_buffer->enable_multibyte_characters))
    len = CHAR_STRING (c, workbuf, str);
  else
    workbuf[0] = c, str = workbuf, len = 1;

377
  if (!NILP (overwrite)
Karl Heuer's avatar
Karl Heuer committed
378
      && PT < ZV)
Jim Blandy's avatar
Jim Blandy committed
379
    {
Karl Heuer's avatar
Karl Heuer committed
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
      /* 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.  */

      /* A code at `point'.  Since this is checked only against
         NEWLINE and TAB, we don't need a character code but only the
         first byte of multi-byte form.  */
      unsigned char c2 = FETCH_BYTE (PT);
      /* A column the cursor should be placed at after this insertion.
         The correct value should be calculated only when necessary.  */
      int target_clm = 0;

      /* Overwriting in binary-mode always substitute C2 by C.  But,
	 overwriting in textual-mode does this substitution in the
	 case that C is not NEWLINE and C2 is not NEWLINE nor TAB.  If
	 C2 is TAB, the substitution is done only when C2 is currently
	 expanded to 0 column, or more than 20 columns, or more than
	 the width of C.  */
      if (EQ (overwrite, Qoverwrite_mode_binary)
	  || (c != '\n'
	      && c2 != '\n'
	      && (target_clm = current_column() + WIDTH_BY_CHAR_HEAD (str[0]),
		  (c2 != '\t'
		   || XINT (current_buffer->tab_width) <= 0
		   || XFASTINT (current_buffer->tab_width) > 20
		   || !(target_clm % XFASTINT (current_buffer->tab_width))))))
	{
	  if (target_clm == 0)
	    del_range (PT, forward_point (1));
	  else
	    {
416
	      int pos = PT;
Karl Heuer's avatar
Karl Heuer committed
417 418 419 420 421 422 423 424 425 426 427 428 429 430 431 432 433 434
	      /* 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.  */
	      int actual_clm = XFASTINT (Fmove_to_column (target_clm));

	      del_range (pos, PT);
	      if (actual_clm > target_clm)
		{
		  /* We deleted too many columns.  Let's fill columns
		     by spaces so that the remaining text won't move.  */
		  insert("        ",  actual_clm - target_clm);
		  SET_PT (pos);
		}
	    }
	  hairy = 2;
	}
435
      hairy = 2;
Jim Blandy's avatar
Jim Blandy committed
436
    }
Jim Blandy's avatar
Jim Blandy committed
437
  if (!NILP (current_buffer->abbrev_mode)
Jim Blandy's avatar
Jim Blandy committed
438
      && SYNTAX (c) != Sword
Jim Blandy's avatar
Jim Blandy committed
439
      && NILP (current_buffer->read_only)
Karl Heuer's avatar
Karl Heuer committed
440
      && PT > BEGV && SYNTAX (XFASTINT (Fprevious_char ())) == Sword)
Jim Blandy's avatar
Jim Blandy committed
441
    {
442
      int modiff = MODIFF;
443 444 445 446 447
      Lisp_Object sym;

      sym = Fexpand_abbrev ();

      /* If we expanded an abbrev which has only a hook,
448
	 and the hook has a non-nil `no-self-insert' property,
449
	 return right away--don't really self-insert.  */
450 451
      if (! NILP (sym) && ! NILP (XSYMBOL (sym)->function)
	  && SYMBOLP (XSYMBOL (sym)->function))
452 453
	{
	  Lisp_Object prop;
454
	  prop = Fget (XSYMBOL (sym)->function, intern ("no-self-insert"));
455
	  if (! NILP (prop))
456
	    return 1;
457 458
	}

459
      if (MODIFF != modiff)
460
	hairy = 2;
Jim Blandy's avatar
Jim Blandy committed
461 462 463
    }
  if ((c == ' ' || c == '\n')
      && !noautofill
464
      && !NILP (current_buffer->auto_fill_function))
Jim Blandy's avatar
Jim Blandy committed
465
    {
466 467
      Lisp_Object tem;

Karl Heuer's avatar
Karl Heuer committed
468 469
      insert_and_inherit (str, len);
      if (c == '\n')
470 471 472
	/* 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. */
473
	SET_PT (PT - 1);
474
      tem = call0 (current_buffer->auto_fill_function);
Karl Heuer's avatar
Karl Heuer committed
475
      if (c == '\n')
476
	SET_PT (PT + 1);
477 478
      if (!NILP (tem))
	hairy = 2;
Jim Blandy's avatar
Jim Blandy committed
479 480
    }
  else
Karl Heuer's avatar
Karl Heuer committed
481
    insert_and_inherit (str, len);
482

483
#ifdef HAVE_FACES
484 485
  /* If previous command specified a face to use, use it.  */
  if (!NILP (Vself_insert_face)
486
      && EQ (current_kboard->Vlast_command, Vself_insert_face_command))
487 488
    {
      Lisp_Object before, after;
Karl Heuer's avatar
Karl Heuer committed
489
      XSETINT (before, PT - len);
490 491 492 493
      XSETINT (after, PT);
      Fput_text_property (before, after, Qface, Vself_insert_face, Qnil);
      Vself_insert_face = Qnil;
    }
494
#endif
Jim Blandy's avatar
Jim Blandy committed
495 496
  synt = SYNTAX (c);
  if ((synt == Sclose || synt == Smath)
497 498
      && !NILP (Vblink_paren_function) && INTERACTIVE
      && !noautofill)
Jim Blandy's avatar
Jim Blandy committed
499 500
    {
      call0 (Vblink_paren_function);
501
      hairy = 2;
Jim Blandy's avatar
Jim Blandy committed
502 503 504 505 506 507 508 509 510 511 512 513 514 515
    }
  return hairy;
}

/* module initialization */

syms_of_cmds ()
{
  Qkill_backward_chars = intern ("kill-backward-chars");
  staticpro (&Qkill_backward_chars);

  Qkill_forward_chars = intern ("kill-forward-chars");
  staticpro (&Qkill_forward_chars);

516 517
  Qoverwrite_mode_binary = intern ("overwrite-mode-binary");
  staticpro (&Qoverwrite_mode_binary);
518

519 520 521 522 523 524 525 526 527 528
  DEFVAR_LISP ("self-insert-face", &Vself_insert_face,
    "If non-nil, set the face of the next self-inserting character to this.\n\
See also `self-insert-face-command'.");
  Vself_insert_face = Qnil;

  DEFVAR_LISP ("self-insert-face-command", &Vself_insert_face_command,
    "This is the command that set up `self-insert-face'.\n\
If `last-command' does not equal this value, we ignore `self-insert-face'.");
  Vself_insert_face_command = Qnil;

Jim Blandy's avatar
Jim Blandy committed
529 530 531 532 533
  DEFVAR_LISP ("blink-paren-function", &Vblink_paren_function,
    "Function called, if non-nil, whenever a close parenthesis is inserted.\n\
More precisely, a char with closeparen syntax is self-inserted.");
  Vblink_paren_function = Qnil;

534 535 536 537 538 539 540
  DEFVAR_INT ("nonascii-insert-offset", &nonascii_insert_offset,
    "Offset to add to a non-ascii code 0200...0377 when inserting it.\n\
This applies only when multibyte characters are enabled, and it serves\n\
to convert a Latin-1 or similar 8-bit character code to the corresponding\n\
Emacs character code.");
  nonascii_insert_offset = 0;

Karl Heuer's avatar
Karl Heuer committed
541
  defsubr (&Sforward_point);
Jim Blandy's avatar
Jim Blandy committed
542 543 544 545 546 547 548 549 550 551 552 553 554 555 556 557
  defsubr (&Sforward_char);
  defsubr (&Sbackward_char);
  defsubr (&Sforward_line);
  defsubr (&Sbeginning_of_line);
  defsubr (&Send_of_line);

  defsubr (&Sdelete_char);
  defsubr (&Sdelete_backward_char);

  defsubr (&Sself_insert_command);
}

keys_of_cmds ()
{
  int n;

558
  initial_define_key (global_map, Ctl ('I'), "self-insert-command");
Jim Blandy's avatar
Jim Blandy committed
559 560
  for (n = 040; n < 0177; n++)
    initial_define_key (global_map, n, "self-insert-command");
561 562 563 564
#ifdef MSDOS
  for (n = 0200; n < 0240; n++)
    initial_define_key (global_map, n, "self-insert-command");
#endif
565
  for (n = 0240; n < 0400; n++)
566
    initial_define_key (global_map, n, "self-insert-command");
Jim Blandy's avatar
Jim Blandy committed
567 568 569 570 571 572 573 574

  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 ('D'), "delete-char");
  initial_define_key (global_map, Ctl ('E'), "end-of-line");
  initial_define_key (global_map, Ctl ('F'), "forward-char");
  initial_define_key (global_map, 0177, "delete-backward-char");
}