vi_mode.c 32.2 KB
Newer Older
bk@work.mysql.com's avatar
bk@work.mysql.com committed
1 2 3
/* vi_mode.c -- A vi emulation mode for Bash.
   Derived from code written by Jeff Sparkes (jsparkes@bnr.ca).  */

4
/* Copyright (C) 1987-2004 Free Software Foundation, Inc.
bk@work.mysql.com's avatar
bk@work.mysql.com committed
5 6 7 8 9 10

   This file is part of the GNU Readline Library, a library for
   reading lines of text with interactive input and history editing.

   The GNU Readline Library is free software; you can redistribute it
   and/or modify it under the terms of the GNU General Public License
11
   as published by the Free Software Foundation; either version 2, or
bk@work.mysql.com's avatar
bk@work.mysql.com committed
12 13 14 15 16 17 18 19 20 21
   (at your option) any later version.

   The GNU Readline Library 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.

   The GNU General Public License is often shipped with GNU software, and
   is generally kept in a file called COPYING or LICENSE.  If you do not
   have a copy of the license, write to the Free Software Foundation,
22
   59 Temple Place, Suite 330, Boston, MA 02111 USA. */
bk@work.mysql.com's avatar
bk@work.mysql.com committed
23 24 25 26 27 28 29 30 31 32 33
#define READLINE_LIBRARY

/* **************************************************************** */
/*								    */
/*			VI Emulation Mode			    */
/*								    */
/* **************************************************************** */
#include "rlconf.h"

#if defined (VI_MODE)

34
#include "config_readline.h"
bk@work.mysql.com's avatar
bk@work.mysql.com committed
35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51

#include <sys/types.h>

#if defined (HAVE_STDLIB_H)
#  include <stdlib.h>
#else
#  include "ansi_stdlib.h"
#endif /* HAVE_STDLIB_H */

#if defined (HAVE_UNISTD_H)
#  include <unistd.h>
#endif

#include <stdio.h>

/* Some standard library routines. */
#include "rldefs.h"
52 53
#include "rlmbutil.h"

bk@work.mysql.com's avatar
bk@work.mysql.com committed
54 55 56
#include "readline.h"
#include "history.h"

57 58
#include "rlprivate.h"
#include "xmalloc.h"
bk@work.mysql.com's avatar
bk@work.mysql.com committed
59 60 61 62 63

#ifndef member
#define member(c, s) ((c) ? (char *)strchr ((s), (c)) != (char *)NULL : 0)
#endif

64 65
int _rl_vi_last_command = 'i';	/* default `.' puts you in insert mode */

bk@work.mysql.com's avatar
bk@work.mysql.com committed
66 67 68 69
/* Non-zero means enter insertion mode. */
static int _rl_vi_doing_insert;

/* Command keys which do movement for xxx_to commands. */
70
static const char *vi_motion = " hl^$0ftFT;,%wbeWBE|";
bk@work.mysql.com's avatar
bk@work.mysql.com committed
71 72 73 74 75 76 77 78 79 80 81 82 83 84 85 86 87 88

/* Keymap used for vi replace characters.  Created dynamically since
   rarely used. */
static Keymap vi_replace_map;

/* The number of characters inserted in the last replace operation. */
static int vi_replace_count;

/* If non-zero, we have text inserted after a c[motion] command that put
   us implicitly into insert mode.  Some people want this text to be
   attached to the command so that it is `redoable' with `.'. */
static int vi_continued_command;
static char *vi_insert_buffer;
static int vi_insert_buffer_size;

static int _rl_vi_last_repeat = 1;
static int _rl_vi_last_arg_sign = 1;
static int _rl_vi_last_motion;
89 90 91
#if defined (HANDLE_MULTIBYTE)
static char _rl_vi_last_search_mbchar[MB_LEN_MAX];
#else
bk@work.mysql.com's avatar
bk@work.mysql.com committed
92
static int _rl_vi_last_search_char;
93
#endif
bk@work.mysql.com's avatar
bk@work.mysql.com committed
94 95 96 97 98 99 100
static int _rl_vi_last_replacement;

static int _rl_vi_last_key_before_insert;

static int vi_redoing;

/* Text modification commands.  These are the `redoable' commands. */
101
static const char *vi_textmod = "_*\\AaIiCcDdPpYyRrSsXx~";
bk@work.mysql.com's avatar
bk@work.mysql.com committed
102 103

/* Arrays for the saved marks. */
104
static int vi_mark_chars['z' - 'a' + 1];
bk@work.mysql.com's avatar
bk@work.mysql.com committed
105

106 107 108
static void _rl_vi_stuff_insert PARAMS((int));
static void _rl_vi_save_insert PARAMS((UNDO_LIST *));
static int rl_digit_loop1 PARAMS((void));
bk@work.mysql.com's avatar
bk@work.mysql.com committed
109 110 111 112

void
_rl_vi_initialize_line ()
{
113
  register int i;
bk@work.mysql.com's avatar
bk@work.mysql.com committed
114

115
  for (i = 0; i < sizeof (vi_mark_chars) / sizeof (int); i++)
bk@work.mysql.com's avatar
bk@work.mysql.com committed
116 117 118 119 120 121 122 123 124 125 126 127 128 129 130 131 132 133 134 135 136
    vi_mark_chars[i] = -1;
}

void
_rl_vi_reset_last ()
{
  _rl_vi_last_command = 'i';
  _rl_vi_last_repeat = 1;
  _rl_vi_last_arg_sign = 1;
  _rl_vi_last_motion = 0;
}

void
_rl_vi_set_last (key, repeat, sign)
     int key, repeat, sign;
{
  _rl_vi_last_command = key;
  _rl_vi_last_repeat = repeat;
  _rl_vi_last_arg_sign = sign;
}

137 138 139 140 141 142 143 144 145 146
/* A convenience function that calls _rl_vi_set_last to save the last command
   information and enters insertion mode. */
void
rl_vi_start_inserting (key, repeat, sign)
     int key, repeat, sign;
{
  _rl_vi_set_last (key, repeat, sign);
  rl_vi_insertion_mode (1, key);
}

bk@work.mysql.com's avatar
bk@work.mysql.com committed
147 148 149 150 151 152 153 154 155 156 157 158 159 160 161 162 163 164 165 166 167 168 169
/* Is the command C a VI mode text modification command? */
int
_rl_vi_textmod_command (c)
     int c;
{
  return (member (c, vi_textmod));
}

static void
_rl_vi_stuff_insert (count)
     int count;
{
  rl_begin_undo_group ();
  while (count--)
    rl_insert_text (vi_insert_buffer);
  rl_end_undo_group ();
}

/* Bound to `.'.  Called from command mode, so we know that we have to
   redo a text modification command.  The default for _rl_vi_last_command
   puts you back into insert mode. */
int
rl_vi_redo (count, c)
170
     int count, c;
bk@work.mysql.com's avatar
bk@work.mysql.com committed
171
{
172 173
  int r;

bk@work.mysql.com's avatar
bk@work.mysql.com committed
174 175 176 177 178 179
  if (!rl_explicit_arg)
    {
      rl_numeric_arg = _rl_vi_last_repeat;
      rl_arg_sign = _rl_vi_last_arg_sign;
    }

180
  r = 0;
bk@work.mysql.com's avatar
bk@work.mysql.com committed
181 182 183 184 185 186 187 188 189 190 191
  vi_redoing = 1;
  /* If we're redoing an insert with `i', stuff in the inserted text
     and do not go into insertion mode. */
  if (_rl_vi_last_command == 'i' && vi_insert_buffer && *vi_insert_buffer)
    {
      _rl_vi_stuff_insert (count);
      /* And back up point over the last character inserted. */
      if (rl_point > 0)
	rl_point--;
    }
  else
192
    r = _rl_dispatch (_rl_vi_last_command, _rl_keymap);
bk@work.mysql.com's avatar
bk@work.mysql.com committed
193 194
  vi_redoing = 0;

195
  return (r);
bk@work.mysql.com's avatar
bk@work.mysql.com committed
196 197 198 199 200 201 202 203 204
}

/* A placeholder for further expansion. */
int
rl_vi_undo (count, key)
     int count, key;
{
  return (rl_undo_command (count, key));
}
205
    
bk@work.mysql.com's avatar
bk@work.mysql.com committed
206 207
/* Yank the nth arg from the previous line into this line at point. */
int
208
rl_vi_yank_arg (count, key)
209
     int count, key;
bk@work.mysql.com's avatar
bk@work.mysql.com committed
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
{
  /* Readline thinks that the first word on a line is the 0th, while vi
     thinks the first word on a line is the 1st.  Compensate. */
  if (rl_explicit_arg)
    rl_yank_nth_arg (count - 1, 0);
  else
    rl_yank_nth_arg ('$', 0);

  return (0);
}

/* With an argument, move back that many history lines, else move to the
   beginning of history. */
int
rl_vi_fetch_history (count, c)
     int count, c;
{
  int wanted;

  /* Giving an argument of n means we want the nth command in the history
     file.  The command number is interpreted the same way that the bash
     `history' command does it -- that is, giving an argument count of 450
     to this command would get the command listed as number 450 in the
     output of `history'. */
  if (rl_explicit_arg)
    {
      wanted = history_base + where_history () - count;
      if (wanted <= 0)
        rl_beginning_of_history (0, 0);
      else
        rl_get_previous_history (wanted, c);
    }
  else
    rl_beginning_of_history (count, 0);
  return (0);
}

/* Search again for the last thing searched for. */
int
rl_vi_search_again (count, key)
     int count, key;
{
  switch (key)
    {
    case 'n':
      rl_noninc_reverse_search_again (count, key);
      break;

    case 'N':
      rl_noninc_forward_search_again (count, key);
      break;
    }
  return (0);
}

/* Do a vi style search. */
int
rl_vi_search (count, key)
     int count, key;
{
  switch (key)
    {
    case '?':
      rl_noninc_forward_search (count, key);
      break;

    case '/':
      rl_noninc_reverse_search (count, key);
      break;

    default:
281
      rl_ding ();
bk@work.mysql.com's avatar
bk@work.mysql.com committed
282 283 284 285 286 287 288 289
      break;
    }
  return (0);
}

/* Completion, from vi's point of view. */
int
rl_vi_complete (ignore, key)
290
     int ignore, key;
bk@work.mysql.com's avatar
bk@work.mysql.com committed
291 292 293 294 295 296 297 298 299 300 301 302 303 304 305 306 307 308
{
  if ((rl_point < rl_end) && (!whitespace (rl_line_buffer[rl_point])))
    {
      if (!whitespace (rl_line_buffer[rl_point + 1]))
	rl_vi_end_word (1, 'E');
      rl_point++;
    }

  if (key == '*')
    rl_complete_internal ('*');	/* Expansion and replacement. */
  else if (key == '=')
    rl_complete_internal ('?');	/* List possible completions. */
  else if (key == '\\')
    rl_complete_internal (TAB);	/* Standard Readline completion. */
  else
    rl_complete (0, key);

  if (key == '*' || key == '\\')
309 310
    rl_vi_start_inserting (key, 1, rl_arg_sign);

bk@work.mysql.com's avatar
bk@work.mysql.com committed
311 312 313 314 315 316
  return (0);
}

/* Tilde expansion for vi mode. */
int
rl_vi_tilde_expand (ignore, key)
317
     int ignore, key;
bk@work.mysql.com's avatar
bk@work.mysql.com committed
318 319
{
  rl_tilde_expand (0, key);
320
  rl_vi_start_inserting (key, 1, rl_arg_sign);
bk@work.mysql.com's avatar
bk@work.mysql.com committed
321 322 323 324 325 326 327 328 329 330 331 332 333
  return (0);
}

/* Previous word in vi mode. */
int
rl_vi_prev_word (count, key)
     int count, key;
{
  if (count < 0)
    return (rl_vi_next_word (-count, key));

  if (rl_point == 0)
    {
334
      rl_ding ();
bk@work.mysql.com's avatar
bk@work.mysql.com committed
335 336 337 338 339 340 341 342 343 344 345 346 347 348 349 350 351 352 353 354 355
      return (0);
    }

  if (_rl_uppercase_p (key))
    rl_vi_bWord (count, key);
  else
    rl_vi_bword (count, key);

  return (0);
}

/* Next word in vi mode. */
int
rl_vi_next_word (count, key)
     int count, key;
{
  if (count < 0)
    return (rl_vi_prev_word (-count, key));

  if (rl_point >= (rl_end - 1))
    {
356
      rl_ding ();
bk@work.mysql.com's avatar
bk@work.mysql.com committed
357 358 359 360 361 362 363 364 365 366 367 368 369 370 371 372 373
      return (0);
    }

  if (_rl_uppercase_p (key))
    rl_vi_fWord (count, key);
  else
    rl_vi_fword (count, key);
  return (0);
}

/* Move to the end of the ?next? word. */
int
rl_vi_end_word (count, key)
     int count, key;
{
  if (count < 0)
    {
374
      rl_ding ();
bk@work.mysql.com's avatar
bk@work.mysql.com committed
375 376 377 378 379 380 381 382 383 384 385 386 387
      return -1;
    }

  if (_rl_uppercase_p (key))
    rl_vi_eWord (count, key);
  else
    rl_vi_eword (count, key);
  return (0);
}

/* Move forward a word the way that 'W' does. */
int
rl_vi_fWord (count, ignore)
388
     int count, ignore;
bk@work.mysql.com's avatar
bk@work.mysql.com committed
389 390 391 392 393 394 395 396 397 398 399 400 401 402 403 404
{
  while (count-- && rl_point < (rl_end - 1))
    {
      /* Skip until whitespace. */
      while (!whitespace (rl_line_buffer[rl_point]) && rl_point < rl_end)
	rl_point++;

      /* Now skip whitespace. */
      while (whitespace (rl_line_buffer[rl_point]) && rl_point < rl_end)
	rl_point++;
    }
  return (0);
}

int
rl_vi_bWord (count, ignore)
405
     int count, ignore;
bk@work.mysql.com's avatar
bk@work.mysql.com committed
406 407 408 409 410 411 412 413 414 415 416 417 418 419 420 421 422 423 424 425 426 427 428
{
  while (count-- && rl_point > 0)
    {
      /* If we are at the start of a word, move back to whitespace so
	 we will go back to the start of the previous word. */
      if (!whitespace (rl_line_buffer[rl_point]) &&
	  whitespace (rl_line_buffer[rl_point - 1]))
	rl_point--;

      while (rl_point > 0 && whitespace (rl_line_buffer[rl_point]))
	rl_point--;

      if (rl_point > 0)
	{
	  while (--rl_point >= 0 && !whitespace (rl_line_buffer[rl_point]));
	  rl_point++;
	}
    }
  return (0);
}

int
rl_vi_eWord (count, ignore)
429
     int count, ignore;
bk@work.mysql.com's avatar
bk@work.mysql.com committed
430 431 432 433 434 435 436 437
{
  while (count-- && rl_point < (rl_end - 1))
    {
      if (!whitespace (rl_line_buffer[rl_point]))
	rl_point++;

      /* Move to the next non-whitespace character (to the start of the
	 next word). */
438 439
      while (rl_point < rl_end && whitespace (rl_line_buffer[rl_point]))
	rl_point++;
bk@work.mysql.com's avatar
bk@work.mysql.com committed
440 441 442 443 444 445 446 447 448 449 450 451 452 453 454 455 456 457 458 459

      if (rl_point && rl_point < rl_end)
	{
	  /* Skip whitespace. */
	  while (rl_point < rl_end && whitespace (rl_line_buffer[rl_point]))
	    rl_point++;

	  /* Skip until whitespace. */
	  while (rl_point < rl_end && !whitespace (rl_line_buffer[rl_point]))
	    rl_point++;

	  /* Move back to the last character of the word. */
	  rl_point--;
	}
    }
  return (0);
}

int
rl_vi_fword (count, ignore)
460
     int count, ignore;
bk@work.mysql.com's avatar
bk@work.mysql.com committed
461 462 463 464
{
  while (count-- && rl_point < (rl_end - 1))
    {
      /* Move to white space (really non-identifer). */
465
      if (_rl_isident (rl_line_buffer[rl_point]))
bk@work.mysql.com's avatar
bk@work.mysql.com committed
466
	{
467
	  while (_rl_isident (rl_line_buffer[rl_point]) && rl_point < rl_end)
bk@work.mysql.com's avatar
bk@work.mysql.com committed
468 469 470 471
	    rl_point++;
	}
      else /* if (!whitespace (rl_line_buffer[rl_point])) */
	{
472
	  while (!_rl_isident (rl_line_buffer[rl_point]) &&
bk@work.mysql.com's avatar
bk@work.mysql.com committed
473 474 475 476 477 478 479 480 481 482 483 484 485
		 !whitespace (rl_line_buffer[rl_point]) && rl_point < rl_end)
	    rl_point++;
	}

      /* Move past whitespace. */
      while (whitespace (rl_line_buffer[rl_point]) && rl_point < rl_end)
	rl_point++;
    }
  return (0);
}

int
rl_vi_bword (count, ignore)
486
     int count, ignore;
bk@work.mysql.com's avatar
bk@work.mysql.com committed
487 488 489 490 491 492 493 494 495 496 497 498 499 500 501
{
  while (count-- && rl_point > 0)
    {
      int last_is_ident;

      /* If we are at the start of a word, move back to whitespace
	 so we will go back to the start of the previous word. */
      if (!whitespace (rl_line_buffer[rl_point]) &&
	  whitespace (rl_line_buffer[rl_point - 1]))
	rl_point--;

      /* If this character and the previous character are `opposite', move
	 back so we don't get messed up by the rl_point++ down there in
	 the while loop.  Without this code, words like `l;' screw up the
	 function. */
502 503 504
      last_is_ident = _rl_isident (rl_line_buffer[rl_point - 1]);
      if ((_rl_isident (rl_line_buffer[rl_point]) && !last_is_ident) ||
	  (!_rl_isident (rl_line_buffer[rl_point]) && last_is_ident))
bk@work.mysql.com's avatar
bk@work.mysql.com committed
505 506 507 508 509 510 511
	rl_point--;

      while (rl_point > 0 && whitespace (rl_line_buffer[rl_point]))
	rl_point--;

      if (rl_point > 0)
	{
512 513
	  if (_rl_isident (rl_line_buffer[rl_point]))
	    while (--rl_point >= 0 && _rl_isident (rl_line_buffer[rl_point]));
bk@work.mysql.com's avatar
bk@work.mysql.com committed
514
	  else
515
	    while (--rl_point >= 0 && !_rl_isident (rl_line_buffer[rl_point]) &&
bk@work.mysql.com's avatar
bk@work.mysql.com committed
516 517 518 519 520 521 522 523 524
		   !whitespace (rl_line_buffer[rl_point]));
	  rl_point++;
	}
    }
  return (0);
}

int
rl_vi_eword (count, ignore)
525
     int count, ignore;
bk@work.mysql.com's avatar
bk@work.mysql.com committed
526 527 528 529 530 531 532 533 534 535 536
{
  while (count-- && rl_point < rl_end - 1)
    {
      if (!whitespace (rl_line_buffer[rl_point]))
	rl_point++;

      while (rl_point < rl_end && whitespace (rl_line_buffer[rl_point]))
	rl_point++;

      if (rl_point < rl_end)
	{
537 538
	  if (_rl_isident (rl_line_buffer[rl_point]))
	    while (++rl_point < rl_end && _rl_isident (rl_line_buffer[rl_point]));
bk@work.mysql.com's avatar
bk@work.mysql.com committed
539
	  else
540
	    while (++rl_point < rl_end && !_rl_isident (rl_line_buffer[rl_point])
bk@work.mysql.com's avatar
bk@work.mysql.com committed
541 542 543 544 545 546 547 548 549
		   && !whitespace (rl_line_buffer[rl_point]));
	}
      rl_point--;
    }
  return (0);
}

int
rl_vi_insert_beg (count, key)
550
     int count, key;
bk@work.mysql.com's avatar
bk@work.mysql.com committed
551 552 553 554 555 556 557 558
{
  rl_beg_of_line (1, key);
  rl_vi_insertion_mode (1, key);
  return (0);
}

int
rl_vi_append_mode (count, key)
559
     int count, key;
bk@work.mysql.com's avatar
bk@work.mysql.com committed
560 561
{
  if (rl_point < rl_end)
562 563 564 565 566 567 568 569 570 571 572
    {
      if (MB_CUR_MAX == 1 || rl_byte_oriented)
	rl_point++;
      else
        {
          int point = rl_point;
          rl_forward_char (1, key);
          if (point == rl_point)
            rl_point = rl_end;
        }
    }
bk@work.mysql.com's avatar
bk@work.mysql.com committed
573 574 575 576 577 578
  rl_vi_insertion_mode (1, key);
  return (0);
}

int
rl_vi_append_eol (count, key)
579
     int count, key;
bk@work.mysql.com's avatar
bk@work.mysql.com committed
580 581 582 583 584 585 586 587 588
{
  rl_end_of_line (1, key);
  rl_vi_append_mode (1, key);
  return (0);
}

/* What to do in the case of C-d. */
int
rl_vi_eof_maybe (count, c)
589
     int count, c;
bk@work.mysql.com's avatar
bk@work.mysql.com committed
590 591 592 593 594 595 596 597 598 599
{
  return (rl_newline (1, '\n'));
}

/* Insertion mode stuff. */

/* Switching from one mode to the other really just involves
   switching keymaps. */
int
rl_vi_insertion_mode (count, key)
600
     int count, key;
bk@work.mysql.com's avatar
bk@work.mysql.com committed
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
{
  _rl_keymap = vi_insertion_keymap;
  _rl_vi_last_key_before_insert = key;
  return (0);
}

static void
_rl_vi_save_insert (up)
      UNDO_LIST *up;
{
  int len, start, end;

  if (up == 0)
    {
      if (vi_insert_buffer_size >= 1)
	vi_insert_buffer[0] = '\0';
      return;
    }

  start = up->start;
  end = up->end;
  len = end - start + 1;
  if (len >= vi_insert_buffer_size)
    {
      vi_insert_buffer_size += (len + 32) - (len % 32);
626
      vi_insert_buffer = (char *)xrealloc (vi_insert_buffer, vi_insert_buffer_size);
bk@work.mysql.com's avatar
bk@work.mysql.com committed
627 628 629 630
    }
  strncpy (vi_insert_buffer, rl_line_buffer + start, len - 1);
  vi_insert_buffer[len-1] = '\0';
}
631
    
bk@work.mysql.com's avatar
bk@work.mysql.com committed
632 633 634 635 636
void
_rl_vi_done_inserting ()
{
  if (_rl_vi_doing_insert)
    {
637
      /* The `C', `s', and `S' commands set this. */
bk@work.mysql.com's avatar
bk@work.mysql.com committed
638 639 640 641 642 643 644 645 646 647 648 649
      rl_end_undo_group ();
      /* Now, the text between rl_undo_list->next->start and
	 rl_undo_list->next->end is what was inserted while in insert
	 mode.  It gets copied to VI_INSERT_BUFFER because it depends
	 on absolute indices into the line which may change (though they
	 probably will not). */
      _rl_vi_doing_insert = 0;
      _rl_vi_save_insert (rl_undo_list->next);
      vi_continued_command = 1;
    }
  else
    {
650
      if ((_rl_vi_last_key_before_insert == 'i' || _rl_vi_last_key_before_insert == 'a') && rl_undo_list)
bk@work.mysql.com's avatar
bk@work.mysql.com committed
651 652 653 654 655 656 657 658 659 660 661 662
        _rl_vi_save_insert (rl_undo_list);
      /* XXX - Other keys probably need to be checked. */
      else if (_rl_vi_last_key_before_insert == 'C')
	rl_end_undo_group ();
      while (_rl_undo_group_level > 0)
	rl_end_undo_group ();
      vi_continued_command = 0;
    }
}

int
rl_vi_movement_mode (count, key)
663
     int count, key;
bk@work.mysql.com's avatar
bk@work.mysql.com committed
664 665
{
  if (rl_point > 0)
666
    rl_backward_char (1, key);
bk@work.mysql.com's avatar
bk@work.mysql.com committed
667 668 669 670 671 672 673 674 675 676 677 678 679 680 681 682

  _rl_keymap = vi_movement_keymap;
  _rl_vi_done_inserting ();
  return (0);
}

int
rl_vi_arg_digit (count, c)
     int count, c;
{
  if (c == '0' && rl_numeric_arg == 1 && !rl_explicit_arg)
    return (rl_beg_of_line (1, c));
  else
    return (rl_digit_argument (count, c));
}

683 684 685 686 687 688 689
/* Change the case of the next COUNT characters. */
#if defined (HANDLE_MULTIBYTE)
static int
_rl_vi_change_mbchar_case (count)
     int count;
{
  wchar_t wc;
690 691
  char mb[MB_LEN_MAX+1];
  int mblen;
692 693 694 695 696 697 698 699 700 701 702 703 704 705 706 707 708 709 710 711 712 713
  mbstate_t ps;

  memset (&ps, 0, sizeof (mbstate_t));
  if (_rl_adjust_point (rl_line_buffer, rl_point, &ps) > 0)
    count--;
  while (count-- && rl_point < rl_end)
    {
      mbrtowc (&wc, rl_line_buffer + rl_point, rl_end - rl_point, &ps);
      if (iswupper (wc))
	wc = towlower (wc);
      else if (iswlower (wc))
	wc = towupper (wc);
      else
	{
	  /* Just skip over chars neither upper nor lower case */
	  rl_forward_char (1, 0);
	  continue;
	}

      /* Vi is kind of strange here. */
      if (wc)
	{
714 715 716
	  mblen = wcrtomb (mb, wc, &ps);
	  if (mblen >= 0)
	    mb[mblen] = '\0';
717 718 719 720 721 722 723 724 725 726 727 728 729 730
	  rl_begin_undo_group ();
	  rl_delete (1, 0);
	  rl_insert_text (mb);
	  rl_end_undo_group ();
	  rl_vi_check ();
	}
      else
        rl_forward_char (1, 0);
    }

  return 0;
}
#endif

bk@work.mysql.com's avatar
bk@work.mysql.com committed
731 732
int
rl_vi_change_case (count, ignore)
733
     int count, ignore;
bk@work.mysql.com's avatar
bk@work.mysql.com committed
734
{
735
  int c, p;
bk@work.mysql.com's avatar
bk@work.mysql.com committed
736 737 738 739 740

  /* Don't try this on an empty line. */
  if (rl_point >= rl_end)
    return (0);

741
  c = 0;
742 743 744 745 746
#if defined (HANDLE_MULTIBYTE)
  if (MB_CUR_MAX > 1 && rl_byte_oriented == 0)
    return (_rl_vi_change_mbchar_case (count));
#endif

bk@work.mysql.com's avatar
bk@work.mysql.com committed
747 748 749 750 751 752 753 754 755
  while (count-- && rl_point < rl_end)
    {
      if (_rl_uppercase_p (rl_line_buffer[rl_point]))
	c = _rl_to_lower (rl_line_buffer[rl_point]);
      else if (_rl_lowercase_p (rl_line_buffer[rl_point]))
	c = _rl_to_upper (rl_line_buffer[rl_point]);
      else
	{
	  /* Just skip over characters neither upper nor lower case. */
756
	  rl_forward_char (1, c);
bk@work.mysql.com's avatar
bk@work.mysql.com committed
757 758 759 760 761 762
	  continue;
	}

      /* Vi is kind of strange here. */
      if (c)
	{
763
	  p = rl_point;
bk@work.mysql.com's avatar
bk@work.mysql.com committed
764
	  rl_begin_undo_group ();
765 766 767
	  rl_vi_delete (1, c);
	  if (rl_point < p)	/* Did we retreat at EOL? */
	    rl_point++;
768
	  _rl_insert_char (1, c);
bk@work.mysql.com's avatar
bk@work.mysql.com committed
769 770 771 772
	  rl_end_undo_group ();
	  rl_vi_check ();
        }
      else
773
	rl_forward_char (1, c);
bk@work.mysql.com's avatar
bk@work.mysql.com committed
774 775 776 777 778 779
    }
  return (0);
}

int
rl_vi_put (count, key)
780
     int count, key;
bk@work.mysql.com's avatar
bk@work.mysql.com committed
781 782
{
  if (!_rl_uppercase_p (key) && (rl_point + 1 <= rl_end))
783
    rl_point = _rl_find_next_mbchar (rl_line_buffer, rl_point, 1, MB_FIND_NONZERO);
bk@work.mysql.com's avatar
bk@work.mysql.com committed
784

785 786 787
  while (count--)
    rl_yank (1, key);

788
  rl_backward_char (1, key);
bk@work.mysql.com's avatar
bk@work.mysql.com committed
789 790 791 792 793 794 795
  return (0);
}

int
rl_vi_check ()
{
  if (rl_point && rl_point == rl_end)
796 797 798 799 800 801
    {
      if (MB_CUR_MAX > 1 && rl_byte_oriented == 0)
	rl_point = _rl_find_prev_mbchar (rl_line_buffer, rl_point, MB_FIND_NONZERO);
      else
        rl_point--;
    }
bk@work.mysql.com's avatar
bk@work.mysql.com committed
802 803 804 805 806 807 808 809 810 811 812 813 814 815 816 817 818 819 820 821 822 823
  return (0);
}

int
rl_vi_column (count, key)
     int count, key;
{
  if (count > rl_end)
    rl_end_of_line (1, key);
  else
    rl_point = count - 1;
  return (0);
}

int
rl_vi_domove (key, nextkey)
     int key, *nextkey;
{
  int c, save;
  int old_end;

  rl_mark = rl_point;
824
  RL_SETSTATE(RL_STATE_MOREINPUT);
bk@work.mysql.com's avatar
bk@work.mysql.com committed
825
  c = rl_read_key ();
826
  RL_UNSETSTATE(RL_STATE_MOREINPUT);
bk@work.mysql.com's avatar
bk@work.mysql.com committed
827 828 829 830 831 832 833 834
  *nextkey = c;

  if (!member (c, vi_motion))
    {
      if (_rl_digit_p (c))
	{
	  save = rl_numeric_arg;
	  rl_numeric_arg = _rl_digit_value (c);
835
	  rl_explicit_arg = 1;
bk@work.mysql.com's avatar
bk@work.mysql.com committed
836 837
	  rl_digit_loop1 ();
	  rl_numeric_arg *= save;
838
	  RL_SETSTATE(RL_STATE_MOREINPUT);
bk@work.mysql.com's avatar
bk@work.mysql.com committed
839
	  c = rl_read_key ();	/* real command */
840
	  RL_UNSETSTATE(RL_STATE_MOREINPUT);
bk@work.mysql.com's avatar
bk@work.mysql.com committed
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
	  *nextkey = c;
	}
      else if (key == c && (key == 'd' || key == 'y' || key == 'c'))
	{
	  rl_mark = rl_end;
	  rl_beg_of_line (1, c);
	  _rl_vi_last_motion = c;
	  return (0);
	}
      else
	return (-1);
    }

  _rl_vi_last_motion = c;

  /* Append a blank character temporarily so that the motion routines
     work right at the end of the line. */
  old_end = rl_end;
  rl_line_buffer[rl_end++] = ' ';
  rl_line_buffer[rl_end] = '\0';

  _rl_dispatch (c, _rl_keymap);

  /* Remove the blank that we added. */
  rl_end = old_end;
  rl_line_buffer[rl_end] = '\0';
  if (rl_point > rl_end)
    rl_point = rl_end;

  /* No change in position means the command failed. */
  if (rl_mark == rl_point)
    return (-1);

  /* rl_vi_f[wW]ord () leaves the cursor on the first character of the next
     word.  If we are not at the end of the line, and we are on a
     non-whitespace character, move back one (presumably to whitespace). */
  if ((_rl_to_upper (c) == 'W') && rl_point < rl_end && rl_point > rl_mark &&
      !whitespace (rl_line_buffer[rl_point]))
    rl_point--;

  /* If cw or cW, back up to the end of a word, so the behaviour of ce
     or cE is the actual result.  Brute-force, no subtlety. */
  if (key == 'c' && rl_point >= rl_mark && (_rl_to_upper (c) == 'W'))
    {
      /* Don't move farther back than where we started. */
      while (rl_point > rl_mark && whitespace (rl_line_buffer[rl_point]))
	rl_point--;

      /* Posix.2 says that if cw or cW moves the cursor towards the end of
	 the line, the character under the cursor should be deleted. */
      if (rl_point == rl_mark)
        rl_point++;
      else
	{
	  /* Move past the end of the word so that the kill doesn't
	     remove the last letter of the previous word.  Only do this
	     if we are not at the end of the line. */
	  if (rl_point >= 0 && rl_point < (rl_end - 1) && !whitespace (rl_line_buffer[rl_point]))
	    rl_point++;
	}
    }

  if (rl_mark < rl_point)
904
    SWAP (rl_point, rl_mark);
bk@work.mysql.com's avatar
bk@work.mysql.com committed
905 906 907 908 909

  return (0);
}

/* A simplified loop for vi. Don't dispatch key at end.
910 911
   Don't recognize minus sign?
   Should this do rl_save_prompt/rl_restore_prompt? */
bk@work.mysql.com's avatar
bk@work.mysql.com committed
912 913 914 915 916
static int
rl_digit_loop1 ()
{
  int key, c;

917
  RL_SETSTATE(RL_STATE_NUMERICARG);
bk@work.mysql.com's avatar
bk@work.mysql.com committed
918 919
  while (1)
    {
920 921 922 923 924 925 926 927 928 929
      if (rl_numeric_arg > 1000000)
	{
	  rl_explicit_arg = rl_numeric_arg = 0;
	  rl_ding ();
	  rl_clear_message ();
	  RL_UNSETSTATE(RL_STATE_NUMERICARG);
	  return 1;
	}
      rl_message ("(arg: %d) ", rl_arg_sign * rl_numeric_arg);
      RL_SETSTATE(RL_STATE_MOREINPUT);
bk@work.mysql.com's avatar
bk@work.mysql.com committed
930
      key = c = rl_read_key ();
931
      RL_UNSETSTATE(RL_STATE_MOREINPUT);
bk@work.mysql.com's avatar
bk@work.mysql.com committed
932

933
      if (c >= 0 && _rl_keymap[c].type == ISFUNC &&
bk@work.mysql.com's avatar
bk@work.mysql.com committed
934 935 936 937 938 939 940 941 942 943 944 945 946 947 948 949 950 951 952 953 954 955
	  _rl_keymap[c].function == rl_universal_argument)
	{
	  rl_numeric_arg *= 4;
	  continue;
	}

      c = UNMETA (c);
      if (_rl_digit_p (c))
	{
	  if (rl_explicit_arg)
	    rl_numeric_arg = (rl_numeric_arg * 10) + _rl_digit_value (c);
	  else
	    rl_numeric_arg = _rl_digit_value (c);
	  rl_explicit_arg = 1;
	}
      else
	{
	  rl_clear_message ();
	  rl_stuff_char (key);
	  break;
	}
    }
956 957

  RL_UNSETSTATE(RL_STATE_NUMERICARG);
bk@work.mysql.com's avatar
bk@work.mysql.com committed
958 959 960 961 962
  return (0);
}

int
rl_vi_delete_to (count, key)
963
     int count, key;
bk@work.mysql.com's avatar
bk@work.mysql.com committed
964 965 966 967 968 969 970 971 972 973
{
  int c;

  if (_rl_uppercase_p (key))
    rl_stuff_char ('$');
  else if (vi_redoing)
    rl_stuff_char (_rl_vi_last_motion);

  if (rl_vi_domove (key, &c))
    {
974
      rl_ding ();
bk@work.mysql.com's avatar
bk@work.mysql.com committed
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
      return -1;
    }

  /* These are the motion commands that do not require adjusting the
     mark. */
  if ((strchr (" l|h^0bB", c) == 0) && (rl_mark < rl_end))
    rl_mark++;

  rl_kill_text (rl_point, rl_mark);
  return (0);
}

int
rl_vi_change_to (count, key)
     int count, key;
{
  int c, start_pos;

  if (_rl_uppercase_p (key))
    rl_stuff_char ('$');
  else if (vi_redoing)
    rl_stuff_char (_rl_vi_last_motion);

  start_pos = rl_point;

  if (rl_vi_domove (key, &c))
    {
1002
      rl_ding ();
bk@work.mysql.com's avatar
bk@work.mysql.com committed
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
      return -1;
    }

  /* These are the motion commands that do not require adjusting the
     mark.  c[wW] are handled by special-case code in rl_vi_domove(),
     and already leave the mark at the correct location. */
  if ((strchr (" l|hwW^0bB", c) == 0) && (rl_mark < rl_end))
    rl_mark++;

  /* The cursor never moves with c[wW]. */
  if ((_rl_to_upper (c) == 'W') && rl_point < start_pos)
    rl_point = start_pos;

  if (vi_redoing)
    {
      if (vi_insert_buffer && *vi_insert_buffer)
	rl_begin_undo_group ();
      rl_delete_text (rl_point, rl_mark);
      if (vi_insert_buffer && *vi_insert_buffer)
	{
	  rl_insert_text (vi_insert_buffer);
	  rl_end_undo_group ();
	}
    }
  else
    {
      rl_begin_undo_group ();		/* to make the `u' command work */
      rl_kill_text (rl_point, rl_mark);
      /* `C' does not save the text inserted for undoing or redoing. */
      if (_rl_uppercase_p (key) == 0)
        _rl_vi_doing_insert = 1;
1034
      rl_vi_start_inserting (key, rl_numeric_arg, rl_arg_sign);
bk@work.mysql.com's avatar
bk@work.mysql.com committed
1035 1036 1037 1038 1039 1040 1041
    }

  return (0);
}

int
rl_vi_yank_to (count, key)
1042
     int count, key;
bk@work.mysql.com's avatar
bk@work.mysql.com committed
1043 1044 1045 1046 1047 1048 1049 1050
{
  int c, save = rl_point;

  if (_rl_uppercase_p (key))
    rl_stuff_char ('$');

  if (rl_vi_domove (key, &c))
    {
1051
      rl_ding ();
bk@work.mysql.com's avatar
bk@work.mysql.com committed
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
      return -1;
    }

  /* These are the motion commands that do not require adjusting the
     mark. */
  if ((strchr (" l|h^0%bB", c) == 0) && (rl_mark < rl_end))
    rl_mark++;

  rl_begin_undo_group ();
  rl_kill_text (rl_point, rl_mark);
  rl_end_undo_group ();
  rl_do_undo ();
  rl_point = save;

  return (0);
}

int
rl_vi_delete (count, key)
     int count, key;
{
  int end;

  if (rl_end == 0)
    {
1077
      rl_ding ();
bk@work.mysql.com's avatar
bk@work.mysql.com committed
1078 1079 1080
      return -1;
    }

1081 1082 1083 1084
  if (MB_CUR_MAX > 1 && rl_byte_oriented == 0)
    end = _rl_find_next_mbchar (rl_line_buffer, rl_point, count, MB_FIND_NONZERO);
  else
    end = rl_point + count;
bk@work.mysql.com's avatar
bk@work.mysql.com committed
1085 1086 1087 1088 1089

  if (end >= rl_end)
    end = rl_end;

  rl_kill_text (rl_point, end);
1090
  
bk@work.mysql.com's avatar
bk@work.mysql.com committed
1091
  if (rl_point > 0 && rl_point == rl_end)
1092
    rl_backward_char (1, key);
bk@work.mysql.com's avatar
bk@work.mysql.com committed
1093 1094 1095 1096 1097
  return (0);
}

int
rl_vi_back_to_indent (count, key)
1098
     int count, key;
bk@work.mysql.com's avatar
bk@work.mysql.com committed
1099 1100 1101 1102 1103 1104 1105 1106 1107
{
  rl_beg_of_line (1, key);
  while (rl_point < rl_end && whitespace (rl_line_buffer[rl_point]))
    rl_point++;
  return (0);
}

int
rl_vi_first_print (count, key)
1108
     int count, key;
bk@work.mysql.com's avatar
bk@work.mysql.com committed
1109 1110 1111 1112 1113 1114 1115 1116
{
  return (rl_vi_back_to_indent (1, key));
}

int
rl_vi_char_search (count, key)
     int count, key;
{
1117 1118 1119 1120
#if defined (HANDLE_MULTIBYTE)
  static char *target;
  static int mb_len;
#else
bk@work.mysql.com's avatar
bk@work.mysql.com committed
1121
  static char target;
1122
#endif
bk@work.mysql.com's avatar
bk@work.mysql.com committed
1123 1124 1125 1126 1127 1128 1129
  static int orig_dir, dir;

  if (key == ';' || key == ',')
    dir = key == ';' ? orig_dir : -orig_dir;
  else
    {
      if (vi_redoing)
1130 1131 1132
#if defined (HANDLE_MULTIBYTE)
	target = _rl_vi_last_search_mbchar;
#else
bk@work.mysql.com's avatar
bk@work.mysql.com committed
1133
	target = _rl_vi_last_search_char;
1134
#endif
bk@work.mysql.com's avatar
bk@work.mysql.com committed
1135
      else
1136 1137 1138 1139 1140 1141 1142 1143 1144 1145
	{
#if defined (HANDLE_MULTIBYTE)
	  mb_len = _rl_read_mbchar (_rl_vi_last_search_mbchar, MB_LEN_MAX);
	  target = _rl_vi_last_search_mbchar;
#else
	  RL_SETSTATE(RL_STATE_MOREINPUT);
	  _rl_vi_last_search_char = target = rl_read_key ();
	  RL_UNSETSTATE(RL_STATE_MOREINPUT);
#endif
	}
bk@work.mysql.com's avatar
bk@work.mysql.com committed
1146 1147 1148 1149 1150 1151 1152 1153 1154 1155 1156 1157 1158 1159 1160 1161 1162 1163 1164 1165 1166

      switch (key)
        {
        case 't':
          orig_dir = dir = FTO;
          break;

        case 'T':
          orig_dir = dir = BTO;
          break;

        case 'f':
          orig_dir = dir = FFIND;
          break;

        case 'F':
          orig_dir = dir = BFIND;
          break;
        }
    }

1167 1168 1169
#if defined (HANDLE_MULTIBYTE)
   return (_rl_char_search_internal (count, dir, target, mb_len));
#else
bk@work.mysql.com's avatar
bk@work.mysql.com committed
1170
  return (_rl_char_search_internal (count, dir, target));
1171
#endif
bk@work.mysql.com's avatar
bk@work.mysql.com committed
1172 1173 1174 1175 1176
}

/* Match brackets */
int
rl_vi_match (ignore, key)
1177
     int ignore, key;
bk@work.mysql.com's avatar
bk@work.mysql.com committed
1178
{
1179
  int count = 1, brack, pos, tmp, pre;
bk@work.mysql.com's avatar
bk@work.mysql.com committed
1180 1181 1182 1183

  pos = rl_point;
  if ((brack = rl_vi_bracktype (rl_line_buffer[rl_point])) == 0)
    {
1184 1185 1186 1187 1188 1189 1190 1191 1192 1193 1194 1195 1196 1197
      if (MB_CUR_MAX > 1 && rl_byte_oriented == 0)
	{
	  while ((brack = rl_vi_bracktype (rl_line_buffer[rl_point])) == 0)
	    {
	      pre = rl_point;
	      rl_forward_char (1, key);
	      if (pre == rl_point)
	        break;
	    }
	}
      else
	while ((brack = rl_vi_bracktype (rl_line_buffer[rl_point])) == 0 &&
		rl_point < rl_end - 1)
	  rl_forward_char (1, key);
bk@work.mysql.com's avatar
bk@work.mysql.com committed
1198 1199 1200 1201

      if (brack <= 0)
	{
	  rl_point = pos;
1202
	  rl_ding ();
bk@work.mysql.com's avatar
bk@work.mysql.com committed
1203 1204 1205 1206 1207 1208 1209 1210 1211 1212
	  return -1;
	}
    }

  pos = rl_point;

  if (brack < 0)
    {
      while (count)
	{
1213 1214 1215 1216 1217 1218 1219 1220 1221 1222
	  tmp = pos;
	  if (MB_CUR_MAX == 1 || rl_byte_oriented)
	    pos--;
	  else
	    {
	      pos = _rl_find_prev_mbchar (rl_line_buffer, pos, MB_FIND_ANY);
	      if (tmp == pos)
	        pos--;
	    }
	  if (pos >= 0)
bk@work.mysql.com's avatar
bk@work.mysql.com committed
1223 1224 1225 1226 1227 1228 1229 1230 1231
	    {
	      int b = rl_vi_bracktype (rl_line_buffer[pos]);
	      if (b == -brack)
		count--;
	      else if (b == brack)
		count++;
	    }
	  else
	    {
1232
	      rl_ding ();
bk@work.mysql.com's avatar
bk@work.mysql.com committed
1233 1234 1235 1236 1237 1238 1239 1240
	      return -1;
	    }
	}
    }
  else
    {			/* brack > 0 */
      while (count)
	{
1241 1242 1243 1244 1245 1246
	  if (MB_CUR_MAX == 1 || rl_byte_oriented)
	    pos++;
	  else
	    pos = _rl_find_next_mbchar (rl_line_buffer, pos, 1, MB_FIND_ANY);

	  if (pos < rl_end)
bk@work.mysql.com's avatar
bk@work.mysql.com committed
1247 1248 1249 1250 1251 1252 1253 1254 1255
	    {
	      int b = rl_vi_bracktype (rl_line_buffer[pos]);
	      if (b == -brack)
		count--;
	      else if (b == brack)
		count++;
	    }
	  else
	    {
1256
	      rl_ding ();
bk@work.mysql.com's avatar
bk@work.mysql.com committed
1257 1258 1259 1260 1261 1262 1263 1264 1265 1266 1267 1268 1269 1270 1271 1272 1273 1274 1275 1276 1277 1278 1279 1280
	      return -1;
	    }
	}
    }
  rl_point = pos;
  return (0);
}

int
rl_vi_bracktype (c)
     int c;
{
  switch (c)
    {
    case '(': return  1;
    case ')': return -1;
    case '[': return  2;
    case ']': return -2;
    case '{': return  3;
    case '}': return -3;
    default:  return  0;
    }
}

1281 1282
/* XXX - think about reading an entire mbchar with _rl_read_mbchar and
   inserting it in one bunch instead of the loop below (like in
1283
   rl_vi_char_search or _rl_vi_change_mbchar_case).  Set c to mbchar[0]
1284 1285
   for test against 033 or ^C.  Make sure that _rl_read_mbchar does
   this right. */
bk@work.mysql.com's avatar
bk@work.mysql.com committed
1286 1287
int
rl_vi_change_char (count, key)
1288
     int count, key;
bk@work.mysql.com's avatar
bk@work.mysql.com committed
1289
{
1290
  int c, p;
bk@work.mysql.com's avatar
bk@work.mysql.com committed
1291 1292 1293 1294

  if (vi_redoing)
    c = _rl_vi_last_replacement;
  else
1295 1296 1297 1298 1299
    {
      RL_SETSTATE(RL_STATE_MOREINPUT);
      _rl_vi_last_replacement = c = rl_read_key ();
      RL_UNSETSTATE(RL_STATE_MOREINPUT);
    }
bk@work.mysql.com's avatar
bk@work.mysql.com committed
1300 1301 1302 1303

  if (c == '\033' || c == CTRL ('C'))
    return -1;

1304
  rl_begin_undo_group ();
bk@work.mysql.com's avatar
bk@work.mysql.com committed
1305 1306
  while (count-- && rl_point < rl_end)
    {
1307 1308
      p = rl_point;
      rl_vi_delete (1, c);
1309 1310 1311 1312 1313 1314 1315 1316 1317 1318
#if defined (HANDLE_MULTIBYTE)
      if (MB_CUR_MAX > 1 && rl_byte_oriented == 0)
	while (_rl_insert_char (1, c))
	  {
	    RL_SETSTATE (RL_STATE_MOREINPUT);
	    c = rl_read_key ();
	    RL_UNSETSTATE (RL_STATE_MOREINPUT);
	  }
      else
#endif
1319 1320 1321 1322 1323
	{
	  if (rl_point < p)		/* Did we retreat at EOL? */
	    rl_point++;
	  _rl_insert_char (1, c);
	}
bk@work.mysql.com's avatar
bk@work.mysql.com committed
1324
    }
1325 1326
  rl_end_undo_group ();

bk@work.mysql.com's avatar
bk@work.mysql.com committed
1327 1328 1329 1330 1331 1332 1333
  return (0);
}

int
rl_vi_subst (count, key)
     int count, key;
{
1334 1335
  /* If we are redoing, rl_vi_change_to will stuff the last motion char */
  if (vi_redoing == 0)
1336
    rl_stuff_char ((key == 'S') ? 'c' : 'l');	/* `S' == `cc', `s' == `cl' */
bk@work.mysql.com's avatar
bk@work.mysql.com committed
1337

1338
  return (rl_vi_change_to (count, 'c'));
bk@work.mysql.com's avatar
bk@work.mysql.com committed
1339 1340 1341 1342 1343 1344 1345 1346 1347 1348 1349 1350
}

int
rl_vi_overstrike (count, key)
     int count, key;
{
  if (_rl_vi_doing_insert == 0)
    {
      _rl_vi_doing_insert = 1;
      rl_begin_undo_group ();
    }

1351
  if (count > 0)
bk@work.mysql.com's avatar
bk@work.mysql.com committed
1352
    {
1353 1354
      _rl_overwrite_char (count, key);
      vi_replace_count += count;
bk@work.mysql.com's avatar
bk@work.mysql.com committed
1355
    }
1356

bk@work.mysql.com's avatar
bk@work.mysql.com committed
1357 1358 1359 1360 1361 1362 1363 1364 1365 1366 1367 1368 1369
  return (0);
}

int
rl_vi_overstrike_delete (count, key)
     int count, key;
{
  int i, s;

  for (i = 0; i < count; i++)
    {
      if (vi_replace_count == 0)
	{
1370
	  rl_ding ();
bk@work.mysql.com's avatar
bk@work.mysql.com committed
1371 1372 1373 1374 1375 1376 1377 1378
	  break;
	}
      s = rl_point;

      if (rl_do_undo ())
	vi_replace_count--;

      if (rl_point == s)
1379
	rl_backward_char (1, key);
bk@work.mysql.com's avatar
bk@work.mysql.com committed
1380 1381 1382 1383 1384 1385 1386 1387 1388 1389 1390 1391 1392
    }

  if (vi_replace_count == 0 && _rl_vi_doing_insert)
    {
      rl_end_undo_group ();
      rl_do_undo ();
      _rl_vi_doing_insert = 0;
    }
  return (0);
}

int
rl_vi_replace (count, key)
1393
     int count, key;
bk@work.mysql.com's avatar
bk@work.mysql.com committed
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
{
  int i;

  vi_replace_count = 0;

  if (!vi_replace_map)
    {
      vi_replace_map = rl_make_bare_keymap ();

      for (i = ' '; i < KEYMAP_SIZE; i++)
	vi_replace_map[i].function = rl_vi_overstrike;

      vi_replace_map[RUBOUT].function = rl_vi_overstrike_delete;
      vi_replace_map[ESC].function = rl_vi_movement_mode;
      vi_replace_map[RETURN].function = rl_newline;
      vi_replace_map[NEWLINE].function = rl_newline;

      /* If the normal vi insertion keymap has ^H bound to erase, do the
         same here.  Probably should remove the assignment to RUBOUT up
         there, but I don't think it will make a difference in real life. */
      if (vi_insertion_keymap[CTRL ('H')].type == ISFUNC &&
	  vi_insertion_keymap[CTRL ('H')].function == rl_rubout)
	vi_replace_map[CTRL ('H')].function = rl_vi_overstrike_delete;

    }
  _rl_keymap = vi_replace_map;
  return (0);
}

#if 0
/* Try to complete the word we are standing on or the word that ends with
   the previous character.  A space matches everything.  Word delimiters are
   space and ;. */
int
rl_vi_possible_completions()
{
  int save_pos = rl_point;

  if (rl_line_buffer[rl_point] != ' ' && rl_line_buffer[rl_point] != ';')
    {
      while (rl_point < rl_end && rl_line_buffer[rl_point] != ' ' &&
	     rl_line_buffer[rl_point] != ';')
	rl_point++;
    }
  else if (rl_line_buffer[rl_point - 1] == ';')
    {
1440
      rl_ding ();
bk@work.mysql.com's avatar
bk@work.mysql.com committed
1441 1442 1443 1444 1445 1446 1447 1448 1449 1450 1451 1452 1453
      return (0);
    }

  rl_possible_completions ();
  rl_point = save_pos;

  return (0);
}
#endif

/* Functions to save and restore marks. */
int
rl_vi_set_mark (count, key)
1454
     int count, key;
bk@work.mysql.com's avatar
bk@work.mysql.com committed
1455 1456 1457
{
  int ch;

1458
  RL_SETSTATE(RL_STATE_MOREINPUT);
bk@work.mysql.com's avatar
bk@work.mysql.com committed
1459
  ch = rl_read_key ();
1460 1461 1462
  RL_UNSETSTATE(RL_STATE_MOREINPUT);

  if (ch < 'a' || ch > 'z')
bk@work.mysql.com's avatar
bk@work.mysql.com committed
1463
    {
1464
      rl_ding ();
bk@work.mysql.com's avatar
bk@work.mysql.com committed
1465 1466 1467 1468 1469 1470 1471 1472 1473
      return -1;
    }
  ch -= 'a';
  vi_mark_chars[ch] = rl_point;
  return 0;
}

int
rl_vi_goto_mark (count, key)
1474
     int count, key;
bk@work.mysql.com's avatar
bk@work.mysql.com committed
1475 1476 1477
{
  int ch;

1478
  RL_SETSTATE(RL_STATE_MOREINPUT);
bk@work.mysql.com's avatar
bk@work.mysql.com committed
1479
  ch = rl_read_key ();
1480 1481
  RL_UNSETSTATE(RL_STATE_MOREINPUT);

bk@work.mysql.com's avatar
bk@work.mysql.com committed
1482 1483 1484 1485 1486
  if (ch == '`')
    {
      rl_point = rl_mark;
      return 0;
    }
1487
  else if (ch < 'a' || ch > 'z')
bk@work.mysql.com's avatar
bk@work.mysql.com committed
1488
    {
1489
      rl_ding ();
bk@work.mysql.com's avatar
bk@work.mysql.com committed
1490 1491 1492 1493 1494 1495
      return -1;
    }

  ch -= 'a';
  if (vi_mark_chars[ch] == -1)
    {
1496
      rl_ding ();
bk@work.mysql.com's avatar
bk@work.mysql.com committed
1497 1498 1499 1500 1501 1502 1503
      return -1;
    }
  rl_point = vi_mark_chars[ch];
  return 0;
}

#endif /* VI_MODE */