OpenCoverage

search.c

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1/* search.c - code for non-incremental searching in emacs and vi modes. */-
2-
3/* Copyright (C) 1992-2017 Free Software Foundation, Inc.-
4-
5 This file is part of the GNU Readline Library (Readline), a library-
6 for reading lines of text with interactive input and history editing. -
7-
8 Readline is free software: you can redistribute it and/or modify-
9 it under the terms of the GNU General Public License as published by-
10 the Free Software Foundation, either version 3 of the License, or-
11 (at your option) any later version.-
12-
13 Readline is distributed in the hope that it will be useful,-
14 but WITHOUT ANY WARRANTY; without even the implied warranty of-
15 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the-
16 GNU General Public License for more details.-
17-
18 You should have received a copy of the GNU General Public License-
19 along with Readline. If not, see <http://www.gnu.org/licenses/>.-
20*/-
21-
22#define READLINE_LIBRARY-
23-
24#if defined (HAVE_CONFIG_H)-
25# include <config.h>-
26#endif-
27-
28#include <sys/types.h>-
29#include <stdio.h>-
30-
31#if defined (HAVE_UNISTD_H)-
32# include <unistd.h>-
33#endif-
34-
35#if defined (HAVE_STDLIB_H)-
36# include <stdlib.h>-
37#else-
38# include "ansi_stdlib.h"-
39#endif-
40-
41#include "rldefs.h"-
42#include "rlmbutil.h"-
43-
44#include "readline.h"-
45#include "history.h"-
46#include "histlib.h"-
47-
48#include "rlprivate.h"-
49#include "xmalloc.h"-
50-
51#ifdef abs-
52# undef abs-
53#endif-
54#define abs(x) (((x) >= 0) ? (x) : -(x))-
55-
56_rl_search_cxt *_rl_nscxt = 0;-
57-
58extern HIST_ENTRY *_rl_saved_line_for_history;-
59-
60/* Functions imported from the rest of the library. */-
61extern void _rl_free_history_entry PARAMS((HIST_ENTRY *));-
62-
63static char *noninc_search_string = (char *) NULL;-
64static int noninc_history_pos;-
65-
66static char *prev_line_found = (char *) NULL;-
67-
68static int rl_history_search_len;-
69static int rl_history_search_pos;-
70static int rl_history_search_flags;-
71-
72static char *history_search_string;-
73static int history_string_size;-
74-
75static void make_history_line_current PARAMS((HIST_ENTRY *));-
76static int noninc_search_from_pos PARAMS((char *, int, int, int, int *));-
77static int noninc_dosearch PARAMS((char *, int, int));-
78static int noninc_search PARAMS((int, int));-
79static int rl_history_search_internal PARAMS((int, int));-
80static void rl_history_search_reinit PARAMS((int));-
81-
82static _rl_search_cxt *_rl_nsearch_init PARAMS((int, int));-
83static void _rl_nsearch_abort PARAMS((_rl_search_cxt *));-
84static int _rl_nsearch_dispatch PARAMS((_rl_search_cxt *, int));-
85-
86/* Make the data from the history entry ENTRY be the contents of the-
87 current line. This doesn't do anything with rl_point; the caller-
88 must set it. */-
89static void-
90make_history_line_current (HIST_ENTRY *entry)-
91{-
92 _rl_replace_text (entry->line, 0, rl_end);-
93 _rl_fix_point (1);-
94#if defined (VI_MODE)-
95 if (rl_editing_mode == vi_mode)
rl_editing_mode == 0Description
TRUEnever evaluated
FALSEnever evaluated
0
96 /* POSIX.2 says that the `U' command doesn't affect the copy of any-
97 command lines to the edit line. We're going to implement that by-
98 making the undo list start after the matching line is copied to the-
99 current editing buffer. */-
100 rl_free_undo_list ();
never executed: rl_free_undo_list ();
0
101#endif-
102-
103 if (_rl_saved_line_for_history)
_rl_saved_line_for_historyDescription
TRUEnever evaluated
FALSEnever evaluated
0
104 _rl_free_history_entry (_rl_saved_line_for_history);
never executed: _rl_free_history_entry (_rl_saved_line_for_history);
0
105 _rl_saved_line_for_history = (HIST_ENTRY *)NULL;-
106}
never executed: end of block
0
107-
108/* Search the history list for STRING starting at absolute history position-
109 POS. If STRING begins with `^', the search must match STRING at the-
110 beginning of a history line, otherwise a full substring match is performed-
111 for STRING. DIR < 0 means to search backwards through the history list,-
112 DIR >= 0 means to search forward. */-
113static int-
114noninc_search_from_pos (char *string, int pos, int dir, int flags, int *ncp)-
115{-
116 int ret, old, sflags;-
117 char *s;-
118-
119 if (pos < 0)
pos < 0Description
TRUEnever evaluated
FALSEnever evaluated
0
120 return -1;
never executed: return -1;
0
121-
122 old = where_history ();-
123 if (history_set_pos (pos) == 0)
history_set_pos (pos) == 0Description
TRUEnever evaluated
FALSEnever evaluated
0
124 return -1;
never executed: return -1;
0
125-
126 RL_SETSTATE(RL_STATE_SEARCH);-
127 /* These functions return the match offset in the line; history_offset gives-
128 the matching line in the history list */-
129 if (flags & SF_PATTERN)
flags & 0x10Description
TRUEnever evaluated
FALSEnever evaluated
0
130 {-
131 s = string;-
132 sflags = 0; /* Non-anchored search */-
133 if (*s == '^')
*s == '^'Description
TRUEnever evaluated
FALSEnever evaluated
0
134 {-
135 sflags |= ANCHORED_SEARCH;-
136 s++;-
137 }
never executed: end of block
0
138 ret = _hs_history_patsearch (string, dir, sflags);-
139 }
never executed: end of block
0
140 else if (*string == '^')
*string == '^'Description
TRUEnever evaluated
FALSEnever evaluated
0
141 ret = history_search_prefix (string + 1, dir);
never executed: ret = history_search_prefix (string + 1, dir);
0
142 else-
143 ret = history_search (string, dir);
never executed: ret = history_search (string, dir);
0
144 RL_UNSETSTATE(RL_STATE_SEARCH);-
145-
146 if (ncp)
ncpDescription
TRUEnever evaluated
FALSEnever evaluated
0
147 *ncp = ret; /* caller will catch -1 to indicate no-op */
never executed: *ncp = ret;
0
148-
149 if (ret != -1)
ret != -1Description
TRUEnever evaluated
FALSEnever evaluated
0
150 ret = where_history ();
never executed: ret = where_history ();
0
151-
152 history_set_pos (old);-
153 return (ret);
never executed: return (ret);
0
154}-
155-
156/* Search for a line in the history containing STRING. If DIR is < 0, the-
157 search is backwards through previous entries, else through subsequent-
158 entries. Returns 1 if the search was successful, 0 otherwise. */-
159static int-
160noninc_dosearch (char *string, int dir, int flags)-
161{-
162 int oldpos, pos;-
163 HIST_ENTRY *entry;-
164-
165 if (string == 0 || *string == '\0' || noninc_history_pos < 0)
string == 0Description
TRUEnever evaluated
FALSEnever evaluated
*string == '\0'Description
TRUEnever evaluated
FALSEnever evaluated
noninc_history_pos < 0Description
TRUEnever evaluated
FALSEnever evaluated
0
166 {-
167 rl_ding ();-
168 return 0;
never executed: return 0;
0
169 }-
170-
171 pos = noninc_search_from_pos (string, noninc_history_pos + dir, dir, flags, (int *)0);-
172 if (pos == -1)
pos == -1Description
TRUEnever evaluated
FALSEnever evaluated
0
173 {-
174 /* Search failed, current history position unchanged. */-
175 rl_maybe_unsave_line ();-
176 rl_clear_message ();-
177 rl_point = 0;-
178 rl_ding ();-
179 return 0;
never executed: return 0;
0
180 }-
181-
182 noninc_history_pos = pos;-
183-
184 oldpos = where_history ();-
185 history_set_pos (noninc_history_pos);-
186 entry = current_history (); /* will never be NULL after successful search */-
187 -
188#if defined (VI_MODE)-
189 if (rl_editing_mode != vi_mode)
rl_editing_mode != 0Description
TRUEnever evaluated
FALSEnever evaluated
0
190#endif-
191 history_set_pos (oldpos);
never executed: history_set_pos (oldpos);
0
192-
193 make_history_line_current (entry);-
194-
195 rl_point = 0;-
196 rl_mark = rl_end;-
197-
198 rl_clear_message ();-
199 return 1;
never executed: return 1;
0
200}-
201-
202static _rl_search_cxt *-
203_rl_nsearch_init (int dir, int pchar)-
204{-
205 _rl_search_cxt *cxt;-
206 char *p;-
207-
208 cxt = _rl_scxt_alloc (RL_SEARCH_NSEARCH, 0);-
209 if (dir < 0)
dir < 0Description
TRUEnever evaluated
FALSEnever evaluated
0
210 cxt->sflags |= SF_REVERSE; /* not strictly needed */
never executed: cxt->sflags |= 0x01;
0
211#if defined (VI_MODE)-
212 if (VI_COMMAND_MODE() && (pchar == '?' || pchar == '/'))
rl_editing_mode == 0Description
TRUEnever evaluated
FALSEnever evaluated
_rl_keymap == ...ovement_keymapDescription
TRUEnever evaluated
FALSEnever evaluated
pchar == '?'Description
TRUEnever evaluated
FALSEnever evaluated
pchar == '/'Description
TRUEnever evaluated
FALSEnever evaluated
0
213 cxt->sflags |= SF_PATTERN;
never executed: cxt->sflags |= 0x10;
0
214#endif-
215-
216 cxt->direction = dir;-
217 cxt->history_pos = cxt->save_line;-
218-
219 rl_maybe_save_line ();-
220-
221 /* Clear the undo list, since reading the search string should create its-
222 own undo list, and the whole list will end up being freed when we-
223 finish reading the search string. */-
224 rl_undo_list = 0;-
225-
226 /* Use the line buffer to read the search string. */-
227 rl_line_buffer[0] = 0;-
228 rl_end = rl_point = 0;-
229-
230 p = _rl_make_prompt_for_search (pchar ? pchar : ':');-
231 rl_message ("%s", p);-
232 xfree (p);-
233-
234 RL_SETSTATE(RL_STATE_NSEARCH);-
235-
236 _rl_nscxt = cxt;-
237-
238 return cxt;
never executed: return cxt;
0
239}-
240-
241int-
242_rl_nsearch_cleanup (_rl_search_cxt *cxt, int r)-
243{-
244 _rl_scxt_dispose (cxt, 0);-
245 _rl_nscxt = 0;-
246-
247 RL_UNSETSTATE(RL_STATE_NSEARCH);-
248-
249 return (r != 1);
never executed: return (r != 1);
0
250}-
251-
252static void-
253_rl_nsearch_abort (_rl_search_cxt *cxt)-
254{-
255 rl_maybe_unsave_line ();-
256 rl_clear_message ();-
257 rl_point = cxt->save_point;-
258 rl_mark = cxt->save_mark;-
259 rl_restore_prompt ();-
260-
261 RL_UNSETSTATE (RL_STATE_NSEARCH);-
262}
never executed: end of block
0
263-
264/* Process just-read character C according to search context CXT. Return -1-
265 if the caller should abort the search, 0 if we should break out of the-
266 loop, and 1 if we should continue to read characters. */-
267static int-
268_rl_nsearch_dispatch (_rl_search_cxt *cxt, int c)-
269{-
270 if (c < 0)
c < 0Description
TRUEnever evaluated
FALSEnever evaluated
0
271 c = CTRL ('C');
never executed: c = (('C') & 0x1f);
0
272-
273 switch (c)-
274 {-
275 case CTRL('W'):
never executed: case (('W') & 0x1f):
0
276 rl_unix_word_rubout (1, c);-
277 break;
never executed: break;
0
278-
279 case CTRL('U'):
never executed: case (('U') & 0x1f):
0
280 rl_unix_line_discard (1, c);-
281 break;
never executed: break;
0
282-
283 case RETURN:
never executed: case (('M') & 0x1f):
0
284 case NEWLINE:
never executed: case '\n':
0
285 return 0;
never executed: return 0;
0
286-
287 case CTRL('H'):
never executed: case (('H') & 0x1f):
0
288 case RUBOUT:
never executed: case 0x7f:
0
289 if (rl_point == 0)
rl_point == 0Description
TRUEnever evaluated
FALSEnever evaluated
0
290 {-
291 _rl_nsearch_abort (cxt);-
292 return -1;
never executed: return -1;
0
293 }-
294 _rl_rubout_char (1, c);-
295 break;
never executed: break;
0
296-
297 case CTRL('C'):
never executed: case (('C') & 0x1f):
0
298 case CTRL('G'):
never executed: case (('G') & 0x1f):
0
299 rl_ding ();-
300 _rl_nsearch_abort (cxt);-
301 return -1;
never executed: return -1;
0
302-
303 default:
never executed: default:
0
304#if defined (HANDLE_MULTIBYTE)-
305 if (MB_CUR_MAX > 1 && rl_byte_oriented == 0)
(__ctype_get_m...ur_max ()) > 1Description
TRUEnever evaluated
FALSEnever evaluated
rl_byte_oriented == 0Description
TRUEnever evaluated
FALSEnever evaluated
0
306 rl_insert_text (cxt->mb);
never executed: rl_insert_text (cxt->mb);
0
307 else-
308#endif-
309 _rl_insert_char (1, c);
never executed: _rl_insert_char (1, c);
0
310 break;
never executed: break;
0
311 }-
312-
313 (*rl_redisplay_function) ();-
314 return 1;
never executed: return 1;
0
315}-
316-
317/* Perform one search according to CXT, using NONINC_SEARCH_STRING. Return-
318 -1 if the search should be aborted, any other value means to clean up-
319 using _rl_nsearch_cleanup (). Returns 1 if the search was successful,-
320 0 otherwise. */-
321static int-
322_rl_nsearch_dosearch (_rl_search_cxt *cxt)-
323{-
324 rl_mark = cxt->save_mark;-
325-
326 /* If rl_point == 0, we want to re-use the previous search string and-
327 start from the saved history position. If there's no previous search-
328 string, punt. */-
329 if (rl_point == 0)
rl_point == 0Description
TRUEnever evaluated
FALSEnever evaluated
0
330 {-
331 if (noninc_search_string == 0)
noninc_search_string == 0Description
TRUEnever evaluated
FALSEnever evaluated
0
332 {-
333 rl_ding ();-
334 rl_restore_prompt ();-
335 RL_UNSETSTATE (RL_STATE_NSEARCH);-
336 return -1;
never executed: return -1;
0
337 }-
338 }
never executed: end of block
0
339 else-
340 {-
341 /* We want to start the search from the current history position. */-
342 noninc_history_pos = cxt->save_line;-
343 FREE (noninc_search_string);
never executed: free (noninc_search_string);
noninc_search_stringDescription
TRUEnever evaluated
FALSEnever evaluated
0
344 noninc_search_string = savestring (rl_line_buffer);-
345-
346 /* If we don't want the subsequent undo list generated by the search-
347 matching a history line to include the contents of the search string,-
348 we need to clear rl_line_buffer here. For now, we just clear the-
349 undo list generated by reading the search string. (If the search-
350 fails, the old undo list will be restored by rl_maybe_unsave_line.) */-
351 rl_free_undo_list ();-
352 }
never executed: end of block
0
353-
354 rl_restore_prompt ();-
355 return (noninc_dosearch (noninc_search_string, cxt->direction, cxt->sflags&SF_PATTERN));
never executed: return (noninc_dosearch (noninc_search_string, cxt->direction, cxt->sflags&0x10));
0
356}-
357-
358/* Search non-interactively through the history list. DIR < 0 means to-
359 search backwards through the history of previous commands; otherwise-
360 the search is for commands subsequent to the current position in the-
361 history list. PCHAR is the character to use for prompting when reading-
362 the search string; if not specified (0), it defaults to `:'. */-
363static int-
364noninc_search (int dir, int pchar)-
365{-
366 _rl_search_cxt *cxt;-
367 int c, r;-
368-
369 cxt = _rl_nsearch_init (dir, pchar);-
370-
371 if (RL_ISSTATE (RL_STATE_CALLBACK))
(rl_readline_s...& (0x0080000))Description
TRUEnever evaluated
FALSEnever evaluated
0
372 return (0);
never executed: return (0);
0
373-
374 /* Read the search string. */-
375 r = 0;-
376 while (1)-
377 {-
378 c = _rl_search_getchar (cxt);-
379-
380 if (c < 0)
c < 0Description
TRUEnever evaluated
FALSEnever evaluated
0
381 {-
382 _rl_nsearch_abort (cxt);-
383 return 1;
never executed: return 1;
0
384 }-
385 -
386 if (c == 0)
c == 0Description
TRUEnever evaluated
FALSEnever evaluated
0
387 break;
never executed: break;
0
388-
389 r = _rl_nsearch_dispatch (cxt, c);-
390 if (r < 0)
r < 0Description
TRUEnever evaluated
FALSEnever evaluated
0
391 return 1;
never executed: return 1;
0
392 else if (r == 0)
r == 0Description
TRUEnever evaluated
FALSEnever evaluated
0
393 break;
never executed: break;
0
394 }
never executed: end of block
0
395-
396 r = _rl_nsearch_dosearch (cxt);-
397 return ((r >= 0) ? _rl_nsearch_cleanup (cxt, r) : (r != 1));
never executed: return ((r >= 0) ? _rl_nsearch_cleanup (cxt, r) : (r != 1));
0
398}-
399-
400/* Search forward through the history list for a string. If the vi-mode-
401 code calls this, KEY will be `?'. */-
402int-
403rl_noninc_forward_search (int count, int key)-
404{-
405 return noninc_search (1, (key == '?') ? '?' : 0);
never executed: return noninc_search (1, (key == '?') ? '?' : 0);
0
406}-
407-
408/* Reverse search the history list for a string. If the vi-mode code-
409 calls this, KEY will be `/'. */-
410int-
411rl_noninc_reverse_search (int count, int key)-
412{-
413 return noninc_search (-1, (key == '/') ? '/' : 0);
never executed: return noninc_search (-1, (key == '/') ? '/' : 0);
0
414}-
415-
416/* Search forward through the history list for the last string searched-
417 for. If there is no saved search string, abort. If the vi-mode code-
418 calls this, KEY will be `N'. */-
419int-
420rl_noninc_forward_search_again (int count, int key)-
421{-
422 int r;-
423-
424 if (!noninc_search_string)
!noninc_search_stringDescription
TRUEnever evaluated
FALSEnever evaluated
0
425 {-
426 rl_ding ();-
427 return (1);
never executed: return (1);
0
428 }-
429#if defined (VI_MODE)-
430 if (VI_COMMAND_MODE() && key == 'N')
rl_editing_mode == 0Description
TRUEnever evaluated
FALSEnever evaluated
_rl_keymap == ...ovement_keymapDescription
TRUEnever evaluated
FALSEnever evaluated
key == 'N'Description
TRUEnever evaluated
FALSEnever evaluated
0
431 r = noninc_dosearch (noninc_search_string, 1, SF_PATTERN);
never executed: r = noninc_dosearch (noninc_search_string, 1, 0x10);
0
432 else-
433#endif-
434 r = noninc_dosearch (noninc_search_string, 1, 0);
never executed: r = noninc_dosearch (noninc_search_string, 1, 0);
0
435 return (r != 1);
never executed: return (r != 1);
0
436}-
437-
438/* Reverse search in the history list for the last string searched-
439 for. If there is no saved search string, abort. If the vi-mode code-
440 calls this, KEY will be `n'. */-
441int-
442rl_noninc_reverse_search_again (int count, int key)-
443{-
444 int r;-
445-
446 if (!noninc_search_string)
!noninc_search_stringDescription
TRUEnever evaluated
FALSEnever evaluated
0
447 {-
448 rl_ding ();-
449 return (1);
never executed: return (1);
0
450 }-
451#if defined (VI_MODE)-
452 if (VI_COMMAND_MODE() && key == 'n')
rl_editing_mode == 0Description
TRUEnever evaluated
FALSEnever evaluated
_rl_keymap == ...ovement_keymapDescription
TRUEnever evaluated
FALSEnever evaluated
key == 'n'Description
TRUEnever evaluated
FALSEnever evaluated
0
453 r = noninc_dosearch (noninc_search_string, -1, SF_PATTERN);
never executed: r = noninc_dosearch (noninc_search_string, -1, 0x10);
0
454 else-
455#endif-
456 r = noninc_dosearch (noninc_search_string, -1, 0);
never executed: r = noninc_dosearch (noninc_search_string, -1, 0);
0
457 return (r != 1);
never executed: return (r != 1);
0
458}-
459-
460#if defined (READLINE_CALLBACKS)-
461int-
462_rl_nsearch_callback (_rl_search_cxt *cxt)-
463{-
464 int c, r;-
465-
466 c = _rl_search_getchar (cxt);-
467 if (c <= 0)
c <= 0Description
TRUEnever evaluated
FALSEnever evaluated
0
468 {-
469 if (c < 0)
c < 0Description
TRUEnever evaluated
FALSEnever evaluated
0
470 _rl_nsearch_abort (cxt);
never executed: _rl_nsearch_abort (cxt);
0
471 return 1;
never executed: return 1;
0
472 }-
473 r = _rl_nsearch_dispatch (cxt, c);-
474 if (r != 0)
r != 0Description
TRUEnever evaluated
FALSEnever evaluated
0
475 return 1;
never executed: return 1;
0
476-
477 r = _rl_nsearch_dosearch (cxt);-
478 return ((r >= 0) ? _rl_nsearch_cleanup (cxt, r) : (r != 1));
never executed: return ((r >= 0) ? _rl_nsearch_cleanup (cxt, r) : (r != 1));
0
479}-
480#endif-
481 -
482static int-
483rl_history_search_internal (int count, int dir)-
484{-
485 HIST_ENTRY *temp;-
486 int ret, oldpos, newcol;-
487 char *t;-
488-
489 rl_maybe_save_line ();-
490 temp = (HIST_ENTRY *)NULL;-
491-
492 /* Search COUNT times through the history for a line matching-
493 history_search_string. If history_search_string[0] == '^', the-
494 line must match from the start; otherwise any substring can match.-
495 When this loop finishes, TEMP, if non-null, is the history line to-
496 copy into the line buffer. */-
497 while (count)
countDescription
TRUEnever evaluated
FALSEnever evaluated
0
498 {-
499 RL_CHECK_SIGNALS ();
never executed: _rl_signal_handler (_rl_caught_signal);
_rl_caught_signalDescription
TRUEnever evaluated
FALSEnever evaluated
0
500 ret = noninc_search_from_pos (history_search_string, rl_history_search_pos + dir, dir, 0, &newcol);-
501 if (ret == -1)
ret == -1Description
TRUEnever evaluated
FALSEnever evaluated
0
502 break;
never executed: break;
0
503-
504 /* Get the history entry we found. */-
505 rl_history_search_pos = ret;-
506 oldpos = where_history ();-
507 history_set_pos (rl_history_search_pos);-
508 temp = current_history (); /* will never be NULL after successful search */-
509 history_set_pos (oldpos);-
510-
511 /* Don't find multiple instances of the same line. */-
512 if (prev_line_found && STREQ (prev_line_found, temp->line))
never executed: __result = (((const unsigned char *) (const char *) ( (prev_line_found) ))[3] - __s2[3]);
never executed: end of block
never executed: end of block
never executed: __result = (((const unsigned char *) (const char *) ( (temp->line) ))[3] - __s2[3]);
never executed: end of block
never executed: end of block
prev_line_foundDescription
TRUEnever evaluated
FALSEnever evaluated
((prev_line_fo...emp->line)[0])Description
TRUEnever evaluated
FALSEnever evaluated
( __extension_...)))); }) == 0)Description
TRUEnever evaluated
FALSEnever evaluated
__s1_len > 0Description
TRUEnever evaluated
FALSEnever evaluated
__result == 0Description
TRUEnever evaluated
FALSEnever evaluated
__s1_len > 1Description
TRUEnever evaluated
FALSEnever evaluated
__result == 0Description
TRUEnever evaluated
FALSEnever evaluated
__s1_len > 2Description
TRUEnever evaluated
FALSEnever evaluated
__result == 0Description
TRUEnever evaluated
FALSEnever evaluated
__s2_len > 0Description
TRUEnever evaluated
FALSEnever evaluated
__result == 0Description
TRUEnever evaluated
FALSEnever evaluated
__s2_len > 1Description
TRUEnever evaluated
FALSEnever evaluated
__result == 0Description
TRUEnever evaluated
FALSEnever evaluated
__s2_len > 2Description
TRUEnever evaluated
FALSEnever evaluated
__result == 0Description
TRUEnever evaluated
FALSEnever evaluated
0
513 continue;
never executed: continue;
0
514 prev_line_found = temp->line;-
515 count--;-
516 }
never executed: end of block
0
517-
518 /* If we didn't find anything at all, return. */-
519 if (temp == 0)
temp == 0Description
TRUEnever evaluated
FALSEnever evaluated
0
520 {-
521 rl_maybe_unsave_line ();-
522 rl_ding ();-
523 /* If you don't want the saved history line (last match) to show up-
524 in the line buffer after the search fails, change the #if 0 to-
525 #if 1 */-
526#if 0-
527 if (rl_point > rl_history_search_len)-
528 {-
529 rl_point = rl_end = rl_history_search_len;-
530 rl_line_buffer[rl_end] = '\0';-
531 rl_mark = 0;-
532 }-
533#else-
534 rl_point = rl_history_search_len; /* rl_maybe_unsave_line changes it */-
535 rl_mark = rl_end;-
536#endif-
537 return 1;
never executed: return 1;
0
538 }-
539-
540 /* Copy the line we found into the current line buffer. */-
541 make_history_line_current (temp);-
542-
543 /* decide where to put rl_point -- need to change this for pattern search */-
544 if (rl_history_search_flags & ANCHORED_SEARCH)
rl_history_search_flags & 0x01Description
TRUEnever evaluated
FALSEnever evaluated
0
545 rl_point = rl_history_search_len; /* easy case */
never executed: rl_point = rl_history_search_len;
0
546 else-
547 {-
548#if 0-
549 t = strstr (rl_line_buffer, history_search_string); /* XXX */-
550 rl_point = t ? (int)(t - rl_line_buffer) + rl_history_search_len : rl_end;-
551#else-
552 rl_point = (newcol >= 0) ? newcol : rl_end;
(newcol >= 0)Description
TRUEnever evaluated
FALSEnever evaluated
0
553#endif-
554 }
never executed: end of block
0
555 rl_mark = rl_end;-
556-
557 return 0;
never executed: return 0;
0
558}-
559-
560static void-
561rl_history_search_reinit (int flags)-
562{-
563 int sind;-
564-
565 rl_history_search_pos = where_history ();-
566 rl_history_search_len = rl_point;-
567 rl_history_search_flags = flags;-
568-
569 prev_line_found = (char *)NULL;-
570 if (rl_point)
rl_pointDescription
TRUEnever evaluated
FALSEnever evaluated
0
571 {-
572 /* Allocate enough space for anchored and non-anchored searches */-
573 if (rl_history_search_len >= history_string_size - 2)
rl_history_sea...tring_size - 2Description
TRUEnever evaluated
FALSEnever evaluated
0
574 {-
575 history_string_size = rl_history_search_len + 2;-
576 history_search_string = (char *)xrealloc (history_search_string, history_string_size);-
577 }
never executed: end of block
0
578 sind = 0;-
579 if (flags & ANCHORED_SEARCH)
flags & 0x01Description
TRUEnever evaluated
FALSEnever evaluated
0
580 history_search_string[sind++] = '^';
never executed: history_search_string[sind++] = '^';
0
581 strncpy (history_search_string + sind, rl_line_buffer, rl_point);-
582 history_search_string[rl_point + sind] = '\0';-
583 }
never executed: end of block
0
584 _rl_free_saved_history_line ();-
585}
never executed: end of block
0
586-
587/* Search forward in the history for the string of characters-
588 from the start of the line to rl_point. This is a non-incremental-
589 search. The search is anchored to the beginning of the history line. */-
590int-
591rl_history_search_forward (int count, int ignore)-
592{-
593 if (count == 0)
count == 0Description
TRUEnever evaluated
FALSEnever evaluated
0
594 return (0);
never executed: return (0);
0
595-
596 if (rl_last_func != rl_history_search_forward &&
rl_last_func !...search_forwardDescription
TRUEnever evaluated
FALSEnever evaluated
0
597 rl_last_func != rl_history_search_backward)
rl_last_func !...earch_backwardDescription
TRUEnever evaluated
FALSEnever evaluated
0
598 rl_history_search_reinit (ANCHORED_SEARCH);
never executed: rl_history_search_reinit (0x01);
0
599-
600 if (rl_history_search_len == 0)
rl_history_search_len == 0Description
TRUEnever evaluated
FALSEnever evaluated
0
601 return (rl_get_next_history (count, ignore));
never executed: return (rl_get_next_history (count, ignore));
0
602 return (rl_history_search_internal (abs (count), (count > 0) ? 1 : -1));
never executed: return (rl_history_search_internal ((((count) >= 0) ? (count) : -(count)), (count > 0) ? 1 : -1));
0
603}-
604-
605/* Search backward through the history for the string of characters-
606 from the start of the line to rl_point. This is a non-incremental-
607 search. */-
608int-
609rl_history_search_backward (int count, int ignore)-
610{-
611 if (count == 0)
count == 0Description
TRUEnever evaluated
FALSEnever evaluated
0
612 return (0);
never executed: return (0);
0
613-
614 if (rl_last_func != rl_history_search_forward &&
rl_last_func !...search_forwardDescription
TRUEnever evaluated
FALSEnever evaluated
0
615 rl_last_func != rl_history_search_backward)
rl_last_func !...earch_backwardDescription
TRUEnever evaluated
FALSEnever evaluated
0
616 rl_history_search_reinit (ANCHORED_SEARCH);
never executed: rl_history_search_reinit (0x01);
0
617-
618 if (rl_history_search_len == 0)
rl_history_search_len == 0Description
TRUEnever evaluated
FALSEnever evaluated
0
619 return (rl_get_previous_history (count, ignore));
never executed: return (rl_get_previous_history (count, ignore));
0
620 return (rl_history_search_internal (abs (count), (count > 0) ? -1 : 1));
never executed: return (rl_history_search_internal ((((count) >= 0) ? (count) : -(count)), (count > 0) ? -1 : 1));
0
621}-
622-
623/* Search forward in the history for the string of characters-
624 from the start of the line to rl_point. This is a non-incremental-
625 search. The search succeeds if the search string is present anywhere-
626 in the history line. */-
627int-
628rl_history_substr_search_forward (int count, int ignore)-
629{-
630 if (count == 0)
count == 0Description
TRUEnever evaluated
FALSEnever evaluated
0
631 return (0);
never executed: return (0);
0
632-
633 if (rl_last_func != rl_history_substr_search_forward &&
rl_last_func !...search_forwardDescription
TRUEnever evaluated
FALSEnever evaluated
0
634 rl_last_func != rl_history_substr_search_backward)
rl_last_func !...earch_backwardDescription
TRUEnever evaluated
FALSEnever evaluated
0
635 rl_history_search_reinit (NON_ANCHORED_SEARCH);
never executed: rl_history_search_reinit (0);
0
636-
637 if (rl_history_search_len == 0)
rl_history_search_len == 0Description
TRUEnever evaluated
FALSEnever evaluated
0
638 return (rl_get_next_history (count, ignore));
never executed: return (rl_get_next_history (count, ignore));
0
639 return (rl_history_search_internal (abs (count), (count > 0) ? 1 : -1));
never executed: return (rl_history_search_internal ((((count) >= 0) ? (count) : -(count)), (count > 0) ? 1 : -1));
0
640}-
641-
642/* Search backward through the history for the string of characters-
643 from the start of the line to rl_point. This is a non-incremental-
644 search. */-
645int-
646rl_history_substr_search_backward (int count, int ignore)-
647{-
648 if (count == 0)
count == 0Description
TRUEnever evaluated
FALSEnever evaluated
0
649 return (0);
never executed: return (0);
0
650-
651 if (rl_last_func != rl_history_substr_search_forward &&
rl_last_func !...search_forwardDescription
TRUEnever evaluated
FALSEnever evaluated
0
652 rl_last_func != rl_history_substr_search_backward)
rl_last_func !...earch_backwardDescription
TRUEnever evaluated
FALSEnever evaluated
0
653 rl_history_search_reinit (NON_ANCHORED_SEARCH);
never executed: rl_history_search_reinit (0);
0
654-
655 if (rl_history_search_len == 0)
rl_history_search_len == 0Description
TRUEnever evaluated
FALSEnever evaluated
0
656 return (rl_get_previous_history (count, ignore));
never executed: return (rl_get_previous_history (count, ignore));
0
657 return (rl_history_search_internal (abs (count), (count > 0) ? -1 : 1));
never executed: return (rl_history_search_internal ((((count) >= 0) ? (count) : -(count)), (count > 0) ? -1 : 1));
0
658}-
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