Commit | Line | Data |
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c906108c | 1 | /* Handle lists of commands, their decoding and documentation, for GDB. |
8926118c | 2 | |
9b254dd1 DJ |
3 | Copyright (c) 1986, 1989, 1990, 1991, 1998, 2000, 2001, 2002, 2004, 2007, |
4 | 2008 Free Software Foundation, Inc. | |
c906108c | 5 | |
c5aa993b JM |
6 | This program is free software; you can redistribute it and/or modify |
7 | it under the terms of the GNU General Public License as published by | |
a9762ec7 | 8 | the Free Software Foundation; either version 3 of the License, or |
c5aa993b | 9 | (at your option) any later version. |
c906108c | 10 | |
c5aa993b JM |
11 | This program is distributed in the hope that it will be useful, |
12 | but WITHOUT ANY WARRANTY; without even the implied warranty of | |
13 | MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the | |
14 | GNU General Public License for more details. | |
c906108c | 15 | |
c5aa993b | 16 | You should have received a copy of the GNU General Public License |
a9762ec7 | 17 | along with this program. If not, see <http://www.gnu.org/licenses/>. */ |
c906108c SS |
18 | |
19 | #include "defs.h" | |
c906108c | 20 | #include "symtab.h" |
c906108c | 21 | #include <ctype.h> |
f77b92bf | 22 | #include "gdb_regex.h" |
5f8a3188 | 23 | #include "gdb_string.h" |
f397e303 | 24 | #include "completer.h" |
8b93c638 | 25 | #include "ui-out.h" |
c906108c | 26 | |
d318976c FN |
27 | #include "cli/cli-cmds.h" |
28 | #include "cli/cli-decode.h" | |
53a5351d | 29 | |
6a83354a AC |
30 | #ifdef TUI |
31 | #include "tui/tui.h" /* For tui_active et.al. */ | |
32 | #endif | |
33 | ||
b2875cc0 AC |
34 | #include "gdb_assert.h" |
35 | ||
c906108c SS |
36 | /* Prototypes for local functions */ |
37 | ||
a14ed312 | 38 | static void undef_cmd_error (char *, char *); |
c906108c | 39 | |
a14ed312 KB |
40 | static struct cmd_list_element *find_cmd (char *command, |
41 | int len, | |
42 | struct cmd_list_element *clist, | |
43 | int ignore_help_classes, | |
44 | int *nfound); | |
6837a0a2 | 45 | |
c85871a3 | 46 | static void help_all (struct ui_file *stream); |
6e381ba0 VP |
47 | |
48 | static void | |
49 | print_help_for_command (struct cmd_list_element *c, char *prefix, int recurse, | |
50 | struct ui_file *stream); | |
51 | ||
d318976c | 52 | \f |
9f60d481 AC |
53 | /* Set the callback function for the specified command. For each both |
54 | the commands callback and func() are set. The latter set to a | |
55 | bounce function (unless cfunc / sfunc is NULL that is). */ | |
56 | ||
57 | static void | |
58 | do_cfunc (struct cmd_list_element *c, char *args, int from_tty) | |
59 | { | |
60 | c->function.cfunc (args, from_tty); /* Ok. */ | |
61 | } | |
62 | ||
63 | void | |
9773a94b | 64 | set_cmd_cfunc (struct cmd_list_element *cmd, cmd_cfunc_ftype *cfunc) |
9f60d481 AC |
65 | { |
66 | if (cfunc == NULL) | |
67 | cmd->func = NULL; | |
68 | else | |
69 | cmd->func = do_cfunc; | |
70 | cmd->function.cfunc = cfunc; /* Ok. */ | |
71 | } | |
72 | ||
73 | static void | |
74 | do_sfunc (struct cmd_list_element *c, char *args, int from_tty) | |
75 | { | |
76 | c->function.sfunc (args, from_tty, c); /* Ok. */ | |
77 | } | |
78 | ||
79 | void | |
9773a94b | 80 | set_cmd_sfunc (struct cmd_list_element *cmd, cmd_sfunc_ftype *sfunc) |
9f60d481 AC |
81 | { |
82 | if (sfunc == NULL) | |
83 | cmd->func = NULL; | |
84 | else | |
85 | cmd->func = do_sfunc; | |
86 | cmd->function.sfunc = sfunc; /* Ok. */ | |
87 | } | |
88 | ||
bbaca940 AC |
89 | int |
90 | cmd_cfunc_eq (struct cmd_list_element *cmd, | |
91 | void (*cfunc) (char *args, int from_tty)) | |
92 | { | |
93 | return cmd->func == do_cfunc && cmd->function.cfunc == cfunc; | |
94 | } | |
95 | ||
7d0766f3 AC |
96 | void |
97 | set_cmd_context (struct cmd_list_element *cmd, void *context) | |
98 | { | |
99 | cmd->context = context; | |
100 | } | |
101 | ||
102 | void * | |
103 | get_cmd_context (struct cmd_list_element *cmd) | |
104 | { | |
105 | return cmd->context; | |
106 | } | |
107 | ||
700b53b1 TT |
108 | void |
109 | set_cmd_async_ok (struct cmd_list_element *cmd) | |
110 | { | |
111 | cmd->flags |= CMD_ASYNC_OK; | |
112 | } | |
113 | ||
114 | int | |
115 | get_cmd_async_ok (struct cmd_list_element *cmd) | |
116 | { | |
117 | return cmd->flags & CMD_ASYNC_OK; | |
118 | } | |
119 | ||
4f8d22e3 PA |
120 | void |
121 | set_cmd_no_selected_thread_ok (struct cmd_list_element *cmd) | |
122 | { | |
123 | cmd->flags |= CMD_NO_SELECTED_THREAD_OK; | |
124 | } | |
125 | ||
126 | int | |
127 | get_cmd_no_selected_thread_ok (struct cmd_list_element *cmd) | |
128 | { | |
129 | return cmd->flags & CMD_NO_SELECTED_THREAD_OK; | |
130 | } | |
131 | ||
1868c04e AC |
132 | enum cmd_types |
133 | cmd_type (struct cmd_list_element *cmd) | |
134 | { | |
135 | return cmd->type; | |
136 | } | |
137 | ||
5ba2abeb AC |
138 | void |
139 | set_cmd_completer (struct cmd_list_element *cmd, | |
140 | char **(*completer) (char *text, char *word)) | |
141 | { | |
142 | cmd->completer = completer; /* Ok. */ | |
143 | } | |
144 | ||
9f60d481 | 145 | |
c906108c SS |
146 | /* Add element named NAME. |
147 | CLASS is the top level category into which commands are broken down | |
148 | for "help" purposes. | |
149 | FUN should be the function to execute the command; | |
150 | it will get a character string as argument, with leading | |
151 | and trailing blanks already eliminated. | |
152 | ||
153 | DOC is a documentation string for the command. | |
154 | Its first line should be a complete sentence. | |
155 | It should start with ? for a command that is an abbreviation | |
156 | or with * for a command that most users don't need to know about. | |
157 | ||
158 | Add this command to command list *LIST. | |
159 | ||
160 | Returns a pointer to the added command (not necessarily the head | |
161 | of *LIST). */ | |
162 | ||
163 | struct cmd_list_element * | |
af1c1752 KB |
164 | add_cmd (char *name, enum command_class class, void (*fun) (char *, int), |
165 | char *doc, struct cmd_list_element **list) | |
c906108c | 166 | { |
d5b5ac79 | 167 | struct cmd_list_element *c |
c5aa993b | 168 | = (struct cmd_list_element *) xmalloc (sizeof (struct cmd_list_element)); |
c906108c SS |
169 | struct cmd_list_element *p; |
170 | ||
171 | delete_cmd (name, list); | |
172 | ||
494b7ec9 | 173 | if (*list == NULL || strcmp ((*list)->name, name) >= 0) |
c906108c SS |
174 | { |
175 | c->next = *list; | |
176 | *list = c; | |
177 | } | |
178 | else | |
179 | { | |
180 | p = *list; | |
494b7ec9 | 181 | while (p->next && strcmp (p->next->name, name) <= 0) |
c5aa993b JM |
182 | { |
183 | p = p->next; | |
184 | } | |
c906108c SS |
185 | c->next = p->next; |
186 | p->next = c; | |
187 | } | |
188 | ||
189 | c->name = name; | |
190 | c->class = class; | |
9f60d481 | 191 | set_cmd_cfunc (c, fun); |
7d0766f3 | 192 | set_cmd_context (c, NULL); |
c906108c | 193 | c->doc = doc; |
56382845 FN |
194 | c->flags = 0; |
195 | c->replacement = NULL; | |
47724592 | 196 | c->pre_show_hook = NULL; |
73bc900d FN |
197 | c->hook_pre = NULL; |
198 | c->hook_post = NULL; | |
199 | c->hook_in = 0; | |
c906108c SS |
200 | c->prefixlist = NULL; |
201 | c->prefixname = NULL; | |
202 | c->allow_unknown = 0; | |
203 | c->abbrev_flag = 0; | |
5ba2abeb | 204 | set_cmd_completer (c, make_symbol_completion_list); |
c906108c SS |
205 | c->type = not_set_cmd; |
206 | c->var = NULL; | |
207 | c->var_type = var_boolean; | |
208 | c->enums = NULL; | |
209 | c->user_commands = NULL; | |
73bc900d FN |
210 | c->hookee_pre = NULL; |
211 | c->hookee_post = NULL; | |
c906108c SS |
212 | c->cmd_pointer = NULL; |
213 | ||
214 | return c; | |
215 | } | |
216 | ||
56382845 FN |
217 | /* Deprecates a command CMD. |
218 | REPLACEMENT is the name of the command which should be used in place | |
219 | of this command, or NULL if no such command exists. | |
220 | ||
221 | This function does not check to see if command REPLACEMENT exists | |
222 | since gdb may not have gotten around to adding REPLACEMENT when this | |
223 | function is called. | |
224 | ||
225 | Returns a pointer to the deprecated command. */ | |
226 | ||
227 | struct cmd_list_element * | |
fba45db2 | 228 | deprecate_cmd (struct cmd_list_element *cmd, char *replacement) |
56382845 FN |
229 | { |
230 | cmd->flags |= (CMD_DEPRECATED | DEPRECATED_WARN_USER); | |
231 | ||
232 | if (replacement != NULL) | |
233 | cmd->replacement = replacement; | |
234 | else | |
235 | cmd->replacement = NULL; | |
236 | ||
237 | return cmd; | |
238 | } | |
239 | ||
c906108c | 240 | struct cmd_list_element * |
fba45db2 KB |
241 | add_alias_cmd (char *name, char *oldname, enum command_class class, |
242 | int abbrev_flag, struct cmd_list_element **list) | |
c906108c SS |
243 | { |
244 | /* Must do this since lookup_cmd tries to side-effect its first arg */ | |
245 | char *copied_name; | |
d5b5ac79 AC |
246 | struct cmd_list_element *old; |
247 | struct cmd_list_element *c; | |
c906108c SS |
248 | copied_name = (char *) alloca (strlen (oldname) + 1); |
249 | strcpy (copied_name, oldname); | |
c5aa993b | 250 | old = lookup_cmd (&copied_name, *list, "", 1, 1); |
c906108c SS |
251 | |
252 | if (old == 0) | |
253 | { | |
254 | delete_cmd (name, list); | |
255 | return 0; | |
256 | } | |
257 | ||
9f60d481 AC |
258 | c = add_cmd (name, class, NULL, old->doc, list); |
259 | /* NOTE: Both FUNC and all the FUNCTIONs need to be copied. */ | |
260 | c->func = old->func; | |
261 | c->function = old->function; | |
c906108c SS |
262 | c->prefixlist = old->prefixlist; |
263 | c->prefixname = old->prefixname; | |
264 | c->allow_unknown = old->allow_unknown; | |
265 | c->abbrev_flag = abbrev_flag; | |
266 | c->cmd_pointer = old; | |
267 | return c; | |
268 | } | |
269 | ||
270 | /* Like add_cmd but adds an element for a command prefix: | |
271 | a name that should be followed by a subcommand to be looked up | |
272 | in another command list. PREFIXLIST should be the address | |
273 | of the variable containing that list. */ | |
274 | ||
275 | struct cmd_list_element * | |
af1c1752 KB |
276 | add_prefix_cmd (char *name, enum command_class class, void (*fun) (char *, int), |
277 | char *doc, struct cmd_list_element **prefixlist, | |
278 | char *prefixname, int allow_unknown, | |
279 | struct cmd_list_element **list) | |
c906108c | 280 | { |
d5b5ac79 | 281 | struct cmd_list_element *c = add_cmd (name, class, fun, doc, list); |
c906108c SS |
282 | c->prefixlist = prefixlist; |
283 | c->prefixname = prefixname; | |
284 | c->allow_unknown = allow_unknown; | |
285 | return c; | |
286 | } | |
287 | ||
288 | /* Like add_prefix_cmd but sets the abbrev_flag on the new command. */ | |
c5aa993b | 289 | |
c906108c | 290 | struct cmd_list_element * |
af1c1752 KB |
291 | add_abbrev_prefix_cmd (char *name, enum command_class class, |
292 | void (*fun) (char *, int), char *doc, | |
293 | struct cmd_list_element **prefixlist, char *prefixname, | |
294 | int allow_unknown, struct cmd_list_element **list) | |
c906108c | 295 | { |
d5b5ac79 | 296 | struct cmd_list_element *c = add_cmd (name, class, fun, doc, list); |
c906108c SS |
297 | c->prefixlist = prefixlist; |
298 | c->prefixname = prefixname; | |
299 | c->allow_unknown = allow_unknown; | |
300 | c->abbrev_flag = 1; | |
301 | return c; | |
302 | } | |
303 | ||
304 | /* This is an empty "cfunc". */ | |
305 | void | |
fba45db2 | 306 | not_just_help_class_command (char *args, int from_tty) |
c906108c SS |
307 | { |
308 | } | |
309 | ||
310 | /* This is an empty "sfunc". */ | |
a14ed312 | 311 | static void empty_sfunc (char *, int, struct cmd_list_element *); |
c906108c SS |
312 | |
313 | static void | |
fba45db2 | 314 | empty_sfunc (char *args, int from_tty, struct cmd_list_element *c) |
c906108c SS |
315 | { |
316 | } | |
317 | ||
b2875cc0 | 318 | /* Add element named NAME to command list LIST (the list for set/show |
c906108c | 319 | or some sublist thereof). |
b2875cc0 | 320 | TYPE is set_cmd or show_cmd. |
c906108c SS |
321 | CLASS is as in add_cmd. |
322 | VAR_TYPE is the kind of thing we are setting. | |
323 | VAR is address of the variable being controlled by this command. | |
324 | DOC is the documentation string. */ | |
325 | ||
b2875cc0 AC |
326 | static struct cmd_list_element * |
327 | add_set_or_show_cmd (char *name, | |
328 | enum cmd_types type, | |
329 | enum command_class class, | |
330 | var_types var_type, | |
331 | void *var, | |
332 | char *doc, | |
333 | struct cmd_list_element **list) | |
c906108c | 334 | { |
e00d1dc8 | 335 | struct cmd_list_element *c = add_cmd (name, class, NULL, doc, list); |
b2875cc0 AC |
336 | gdb_assert (type == set_cmd || type == show_cmd); |
337 | c->type = type; | |
c906108c SS |
338 | c->var_type = var_type; |
339 | c->var = var; | |
e00d1dc8 | 340 | /* This needs to be something besides NULL so that this isn't |
c906108c | 341 | treated as a help class. */ |
9f60d481 | 342 | set_cmd_sfunc (c, empty_sfunc); |
c906108c SS |
343 | return c; |
344 | } | |
345 | ||
e707bbc2 AC |
346 | /* Add element named NAME to both the command SET_LIST and SHOW_LIST. |
347 | CLASS is as in add_cmd. VAR_TYPE is the kind of thing we are | |
348 | setting. VAR is address of the variable being controlled by this | |
349 | command. SET_FUNC and SHOW_FUNC are the callback functions (if | |
3b64bf98 AC |
350 | non-NULL). SET_DOC, SHOW_DOC and HELP_DOC are the documentation |
351 | strings. PRINT the format string to print the value. SET_RESULT | |
352 | and SHOW_RESULT, if not NULL, are set to the resulting command | |
353 | structures. */ | |
e707bbc2 | 354 | |
b3f42336 | 355 | static void |
9f064c95 TT |
356 | add_setshow_cmd_full (char *name, |
357 | enum command_class class, | |
358 | var_types var_type, void *var, | |
3b64bf98 | 359 | const char *set_doc, const char *show_doc, |
335cca0d | 360 | const char *help_doc, |
3b64bf98 | 361 | cmd_sfunc_ftype *set_func, |
08546159 | 362 | show_value_ftype *show_func, |
9f064c95 TT |
363 | struct cmd_list_element **set_list, |
364 | struct cmd_list_element **show_list, | |
365 | struct cmd_list_element **set_result, | |
366 | struct cmd_list_element **show_result) | |
e707bbc2 AC |
367 | { |
368 | struct cmd_list_element *set; | |
369 | struct cmd_list_element *show; | |
be7d7357 AC |
370 | char *full_set_doc; |
371 | char *full_show_doc; | |
372 | ||
373 | if (help_doc != NULL) | |
374 | { | |
375 | full_set_doc = xstrprintf ("%s\n%s", set_doc, help_doc); | |
376 | full_show_doc = xstrprintf ("%s\n%s", show_doc, help_doc); | |
377 | } | |
378 | else | |
379 | { | |
380 | full_set_doc = xstrdup (set_doc); | |
381 | full_show_doc = xstrdup (show_doc); | |
382 | } | |
e707bbc2 | 383 | set = add_set_or_show_cmd (name, set_cmd, class, var_type, var, |
3b64bf98 | 384 | full_set_doc, set_list); |
e707bbc2 AC |
385 | if (set_func != NULL) |
386 | set_cmd_sfunc (set, set_func); | |
387 | show = add_set_or_show_cmd (name, show_cmd, class, var_type, var, | |
3b64bf98 | 388 | full_show_doc, show_list); |
08546159 | 389 | show->show_value_func = show_func; |
9f064c95 TT |
390 | |
391 | if (set_result != NULL) | |
392 | *set_result = set; | |
393 | if (show_result != NULL) | |
394 | *show_result = show; | |
395 | } | |
396 | ||
b2875cc0 | 397 | struct cmd_list_element * |
b66df561 AC |
398 | deprecated_add_set_cmd (char *name, |
399 | enum command_class class, | |
400 | var_types var_type, | |
401 | void *var, | |
402 | char *doc, | |
403 | struct cmd_list_element **list) | |
b2875cc0 AC |
404 | { |
405 | return add_set_or_show_cmd (name, set_cmd, class, var_type, var, doc, list); | |
406 | } | |
407 | ||
1b295c3d AC |
408 | /* Add element named NAME to command list LIST (the list for set or |
409 | some sublist thereof). CLASS is as in add_cmd. ENUMLIST is a list | |
410 | of strings which may follow NAME. VAR is address of the variable | |
411 | which will contain the matching string (from ENUMLIST). */ | |
412 | ||
413 | void | |
414 | add_setshow_enum_cmd (char *name, | |
415 | enum command_class class, | |
416 | const char *enumlist[], | |
417 | const char **var, | |
418 | const char *set_doc, | |
419 | const char *show_doc, | |
420 | const char *help_doc, | |
1b295c3d | 421 | cmd_sfunc_ftype *set_func, |
08546159 | 422 | show_value_ftype *show_func, |
1b295c3d | 423 | struct cmd_list_element **set_list, |
7376b4c2 | 424 | struct cmd_list_element **show_list) |
1b295c3d AC |
425 | { |
426 | struct cmd_list_element *c; | |
427 | add_setshow_cmd_full (name, class, var_enum, var, | |
335cca0d | 428 | set_doc, show_doc, help_doc, |
1b295c3d AC |
429 | set_func, show_func, |
430 | set_list, show_list, | |
7376b4c2 | 431 | &c, NULL); |
1b295c3d AC |
432 | c->enums = enumlist; |
433 | } | |
434 | ||
e9e68a56 AC |
435 | /* Add an auto-boolean command named NAME to both the set and show |
436 | command list lists. CLASS is as in add_cmd. VAR is address of the | |
437 | variable which will contain the value. DOC is the documentation | |
438 | string. FUNC is the corresponding callback. */ | |
439 | void | |
440 | add_setshow_auto_boolean_cmd (char *name, | |
441 | enum command_class class, | |
442 | enum auto_boolean *var, | |
3b64bf98 | 443 | const char *set_doc, const char *show_doc, |
335cca0d | 444 | const char *help_doc, |
e9e68a56 | 445 | cmd_sfunc_ftype *set_func, |
08546159 | 446 | show_value_ftype *show_func, |
e9e68a56 AC |
447 | struct cmd_list_element **set_list, |
448 | struct cmd_list_element **show_list) | |
97c3646f AC |
449 | { |
450 | static const char *auto_boolean_enums[] = { "on", "off", "auto", NULL }; | |
451 | struct cmd_list_element *c; | |
9f064c95 | 452 | add_setshow_cmd_full (name, class, var_auto_boolean, var, |
2c5b56ce | 453 | set_doc, show_doc, help_doc, |
3b64bf98 | 454 | set_func, show_func, |
9f064c95 TT |
455 | set_list, show_list, |
456 | &c, NULL); | |
97c3646f | 457 | c->enums = auto_boolean_enums; |
97c3646f AC |
458 | } |
459 | ||
e707bbc2 AC |
460 | /* Add element named NAME to both the set and show command LISTs (the |
461 | list for set/show or some sublist thereof). CLASS is as in | |
462 | add_cmd. VAR is address of the variable which will contain the | |
ba3e8e46 | 463 | value. SET_DOC and SHOW_DOC are the documentation strings. */ |
e707bbc2 | 464 | void |
3b64bf98 AC |
465 | add_setshow_boolean_cmd (char *name, enum command_class class, int *var, |
466 | const char *set_doc, const char *show_doc, | |
335cca0d | 467 | const char *help_doc, |
e707bbc2 | 468 | cmd_sfunc_ftype *set_func, |
08546159 | 469 | show_value_ftype *show_func, |
e707bbc2 AC |
470 | struct cmd_list_element **set_list, |
471 | struct cmd_list_element **show_list) | |
f3796e26 AC |
472 | { |
473 | static const char *boolean_enums[] = { "on", "off", NULL }; | |
474 | struct cmd_list_element *c; | |
9f064c95 | 475 | add_setshow_cmd_full (name, class, var_boolean, var, |
2c5b56ce | 476 | set_doc, show_doc, help_doc, |
9f064c95 TT |
477 | set_func, show_func, |
478 | set_list, show_list, | |
479 | &c, NULL); | |
f3796e26 | 480 | c->enums = boolean_enums; |
f3796e26 AC |
481 | } |
482 | ||
b3f42336 AC |
483 | /* Add element named NAME to both the set and show command LISTs (the |
484 | list for set/show or some sublist thereof). */ | |
485 | void | |
486 | add_setshow_filename_cmd (char *name, enum command_class class, | |
487 | char **var, | |
488 | const char *set_doc, const char *show_doc, | |
335cca0d | 489 | const char *help_doc, |
b3f42336 | 490 | cmd_sfunc_ftype *set_func, |
08546159 | 491 | show_value_ftype *show_func, |
b3f42336 AC |
492 | struct cmd_list_element **set_list, |
493 | struct cmd_list_element **show_list) | |
494 | { | |
f397e303 | 495 | struct cmd_list_element *set_result; |
b3f42336 | 496 | add_setshow_cmd_full (name, class, var_filename, var, |
2c5b56ce | 497 | set_doc, show_doc, help_doc, |
b3f42336 AC |
498 | set_func, show_func, |
499 | set_list, show_list, | |
f397e303 AC |
500 | &set_result, NULL); |
501 | set_cmd_completer (set_result, filename_completer); | |
b3f42336 AC |
502 | } |
503 | ||
504 | /* Add element named NAME to both the set and show command LISTs (the | |
505 | list for set/show or some sublist thereof). */ | |
506 | void | |
507 | add_setshow_string_cmd (char *name, enum command_class class, | |
6df3bc68 MS |
508 | char **var, |
509 | const char *set_doc, const char *show_doc, | |
510 | const char *help_doc, | |
511 | cmd_sfunc_ftype *set_func, | |
512 | show_value_ftype *show_func, | |
513 | struct cmd_list_element **set_list, | |
514 | struct cmd_list_element **show_list) | |
b3f42336 AC |
515 | { |
516 | add_setshow_cmd_full (name, class, var_string, var, | |
2c5b56ce | 517 | set_doc, show_doc, help_doc, |
b3f42336 AC |
518 | set_func, show_func, |
519 | set_list, show_list, | |
520 | NULL, NULL); | |
521 | } | |
522 | ||
26c41df3 AC |
523 | /* Add element named NAME to both the set and show command LISTs (the |
524 | list for set/show or some sublist thereof). */ | |
525 | void | |
526 | add_setshow_string_noescape_cmd (char *name, enum command_class class, | |
527 | char **var, | |
528 | const char *set_doc, const char *show_doc, | |
529 | const char *help_doc, | |
530 | cmd_sfunc_ftype *set_func, | |
531 | show_value_ftype *show_func, | |
532 | struct cmd_list_element **set_list, | |
533 | struct cmd_list_element **show_list) | |
534 | { | |
535 | add_setshow_cmd_full (name, class, var_string_noescape, var, | |
536 | set_doc, show_doc, help_doc, | |
537 | set_func, show_func, | |
538 | set_list, show_list, | |
539 | NULL, NULL); | |
540 | } | |
541 | ||
b4b4ac0b AC |
542 | /* Add element named NAME to both the set and show command LISTs (the |
543 | list for set/show or some sublist thereof). */ | |
544 | void | |
545 | add_setshow_optional_filename_cmd (char *name, enum command_class class, | |
546 | char **var, | |
547 | const char *set_doc, const char *show_doc, | |
548 | const char *help_doc, | |
549 | cmd_sfunc_ftype *set_func, | |
550 | show_value_ftype *show_func, | |
551 | struct cmd_list_element **set_list, | |
552 | struct cmd_list_element **show_list) | |
553 | { | |
7f6a6314 PM |
554 | struct cmd_list_element *set_result; |
555 | ||
b4b4ac0b AC |
556 | add_setshow_cmd_full (name, class, var_optional_filename, var, |
557 | set_doc, show_doc, help_doc, | |
558 | set_func, show_func, | |
559 | set_list, show_list, | |
7f6a6314 PM |
560 | &set_result, NULL); |
561 | ||
562 | set_cmd_completer (set_result, filename_completer); | |
563 | ||
b4b4ac0b AC |
564 | } |
565 | ||
c0d88b1b AC |
566 | /* Add element named NAME to both the set and show command LISTs (the |
567 | list for set/show or some sublist thereof). CLASS is as in | |
568 | add_cmd. VAR is address of the variable which will contain the | |
569 | value. SET_DOC and SHOW_DOC are the documentation strings. */ | |
570 | void | |
571 | add_setshow_integer_cmd (char *name, enum command_class class, | |
47b667de | 572 | int *var, |
6df3bc68 MS |
573 | const char *set_doc, const char *show_doc, |
574 | const char *help_doc, | |
575 | cmd_sfunc_ftype *set_func, | |
576 | show_value_ftype *show_func, | |
577 | struct cmd_list_element **set_list, | |
578 | struct cmd_list_element **show_list) | |
c0d88b1b AC |
579 | { |
580 | add_setshow_cmd_full (name, class, var_integer, var, | |
581 | set_doc, show_doc, help_doc, | |
582 | set_func, show_func, | |
583 | set_list, show_list, | |
584 | NULL, NULL); | |
585 | } | |
586 | ||
25d29d70 AC |
587 | /* Add element named NAME to both the set and show command LISTs (the |
588 | list for set/show or some sublist thereof). CLASS is as in | |
589 | add_cmd. VAR is address of the variable which will contain the | |
ba3e8e46 | 590 | value. SET_DOC and SHOW_DOC are the documentation strings. */ |
25d29d70 | 591 | void |
3b64bf98 AC |
592 | add_setshow_uinteger_cmd (char *name, enum command_class class, |
593 | unsigned int *var, | |
594 | const char *set_doc, const char *show_doc, | |
335cca0d | 595 | const char *help_doc, |
25d29d70 | 596 | cmd_sfunc_ftype *set_func, |
08546159 | 597 | show_value_ftype *show_func, |
25d29d70 AC |
598 | struct cmd_list_element **set_list, |
599 | struct cmd_list_element **show_list) | |
600 | { | |
601 | add_setshow_cmd_full (name, class, var_uinteger, var, | |
2c5b56ce | 602 | set_doc, show_doc, help_doc, |
25d29d70 AC |
603 | set_func, show_func, |
604 | set_list, show_list, | |
605 | NULL, NULL); | |
606 | } | |
607 | ||
15170568 AC |
608 | /* Add element named NAME to both the set and show command LISTs (the |
609 | list for set/show or some sublist thereof). CLASS is as in | |
610 | add_cmd. VAR is address of the variable which will contain the | |
ba3e8e46 | 611 | value. SET_DOC and SHOW_DOC are the documentation strings. */ |
15170568 | 612 | void |
3b64bf98 AC |
613 | add_setshow_zinteger_cmd (char *name, enum command_class class, |
614 | int *var, | |
615 | const char *set_doc, const char *show_doc, | |
335cca0d | 616 | const char *help_doc, |
15170568 | 617 | cmd_sfunc_ftype *set_func, |
08546159 | 618 | show_value_ftype *show_func, |
15170568 AC |
619 | struct cmd_list_element **set_list, |
620 | struct cmd_list_element **show_list) | |
621 | { | |
622 | add_setshow_cmd_full (name, class, var_zinteger, var, | |
2c5b56ce | 623 | set_doc, show_doc, help_doc, |
15170568 AC |
624 | set_func, show_func, |
625 | set_list, show_list, | |
626 | NULL, NULL); | |
627 | } | |
628 | ||
c906108c SS |
629 | /* Remove the command named NAME from the command list. */ |
630 | ||
631 | void | |
fba45db2 | 632 | delete_cmd (char *name, struct cmd_list_element **list) |
c906108c | 633 | { |
d5b5ac79 | 634 | struct cmd_list_element *c; |
c906108c SS |
635 | struct cmd_list_element *p; |
636 | ||
6314a349 | 637 | while (*list && strcmp ((*list)->name, name) == 0) |
c906108c | 638 | { |
73bc900d FN |
639 | if ((*list)->hookee_pre) |
640 | (*list)->hookee_pre->hook_pre = 0; /* Hook slips out of its mouth */ | |
641 | if ((*list)->hookee_post) | |
642 | (*list)->hookee_post->hook_post = 0; /* Hook slips out of its bottom */ | |
c906108c | 643 | p = (*list)->next; |
b8c9b27d | 644 | xfree (* list); |
c906108c SS |
645 | *list = p; |
646 | } | |
647 | ||
648 | if (*list) | |
649 | for (c = *list; c->next;) | |
650 | { | |
6314a349 | 651 | if (strcmp (c->next->name, name) == 0) |
c906108c | 652 | { |
73bc900d FN |
653 | if (c->next->hookee_pre) |
654 | c->next->hookee_pre->hook_pre = 0; /* hooked cmd gets away. */ | |
655 | if (c->next->hookee_post) | |
656 | c->next->hookee_post->hook_post = 0; /* remove post hook */ | |
657 | /* :( no fishing metaphore */ | |
c906108c | 658 | p = c->next->next; |
b8c9b27d | 659 | xfree (c->next); |
c906108c SS |
660 | c->next = p; |
661 | } | |
662 | else | |
663 | c = c->next; | |
664 | } | |
665 | } | |
d318976c FN |
666 | \f |
667 | /* Shorthands to the commands above. */ | |
668 | ||
669 | /* Add an element to the list of info subcommands. */ | |
670 | ||
671 | struct cmd_list_element * | |
672 | add_info (char *name, void (*fun) (char *, int), char *doc) | |
673 | { | |
674 | return add_cmd (name, no_class, fun, doc, &infolist); | |
675 | } | |
676 | ||
677 | /* Add an alias to the list of info subcommands. */ | |
678 | ||
679 | struct cmd_list_element * | |
680 | add_info_alias (char *name, char *oldname, int abbrev_flag) | |
681 | { | |
682 | return add_alias_cmd (name, oldname, 0, abbrev_flag, &infolist); | |
683 | } | |
684 | ||
685 | /* Add an element to the list of commands. */ | |
686 | ||
687 | struct cmd_list_element * | |
688 | add_com (char *name, enum command_class class, void (*fun) (char *, int), | |
689 | char *doc) | |
690 | { | |
691 | return add_cmd (name, class, fun, doc, &cmdlist); | |
692 | } | |
693 | ||
694 | /* Add an alias or abbreviation command to the list of commands. */ | |
695 | ||
696 | struct cmd_list_element * | |
697 | add_com_alias (char *name, char *oldname, enum command_class class, | |
698 | int abbrev_flag) | |
699 | { | |
700 | return add_alias_cmd (name, oldname, class, abbrev_flag, &cmdlist); | |
701 | } | |
702 | \f | |
6837a0a2 DB |
703 | /* Recursively walk the commandlist structures, and print out the |
704 | documentation of commands that match our regex in either their | |
705 | name, or their documentation. | |
706 | */ | |
d318976c FN |
707 | void |
708 | apropos_cmd (struct ui_file *stream, struct cmd_list_element *commandlist, | |
6837a0a2 DB |
709 | struct re_pattern_buffer *regex, char *prefix) |
710 | { | |
d5b5ac79 | 711 | struct cmd_list_element *c; |
6837a0a2 DB |
712 | int returnvalue=1; /*Needed to avoid double printing*/ |
713 | /* Walk through the commands */ | |
714 | for (c=commandlist;c;c=c->next) | |
715 | { | |
716 | if (c->name != NULL) | |
717 | { | |
718 | /* Try to match against the name*/ | |
719 | returnvalue=re_search(regex,c->name,strlen(c->name),0,strlen(c->name),NULL); | |
720 | if (returnvalue >= 0) | |
721 | { | |
6e381ba0 VP |
722 | print_help_for_command (c, prefix, |
723 | 0 /* don't recurse */, stream); | |
6837a0a2 DB |
724 | } |
725 | } | |
726 | if (c->doc != NULL && returnvalue != 0) | |
727 | { | |
728 | /* Try to match against documentation */ | |
729 | if (re_search(regex,c->doc,strlen(c->doc),0,strlen(c->doc),NULL) >=0) | |
730 | { | |
6e381ba0 VP |
731 | print_help_for_command (c, prefix, |
732 | 0 /* don't recurse */, stream); | |
6837a0a2 DB |
733 | } |
734 | } | |
735 | /* Check if this command has subcommands */ | |
736 | if (c->prefixlist != NULL) | |
737 | { | |
738 | /* Recursively call ourselves on the subcommand list, | |
739 | passing the right prefix in. | |
740 | */ | |
d318976c | 741 | apropos_cmd (stream,*c->prefixlist,regex,c->prefixname); |
6837a0a2 DB |
742 | } |
743 | } | |
744 | } | |
c906108c SS |
745 | |
746 | /* This command really has to deal with two things: | |
747 | * 1) I want documentation on *this string* (usually called by | |
748 | * "help commandname"). | |
749 | * 2) I want documentation on *this list* (usually called by | |
750 | * giving a command that requires subcommands. Also called by saying | |
751 | * just "help".) | |
752 | * | |
753 | * I am going to split this into two seperate comamnds, help_cmd and | |
754 | * help_list. | |
755 | */ | |
756 | ||
757 | void | |
fba45db2 | 758 | help_cmd (char *command, struct ui_file *stream) |
c906108c SS |
759 | { |
760 | struct cmd_list_element *c; | |
761 | extern struct cmd_list_element *cmdlist; | |
762 | ||
763 | if (!command) | |
764 | { | |
765 | help_list (cmdlist, "", all_classes, stream); | |
766 | return; | |
767 | } | |
768 | ||
49a5a3a3 GM |
769 | if (strcmp (command, "all") == 0) |
770 | { | |
771 | help_all (stream); | |
772 | return; | |
773 | } | |
774 | ||
c906108c SS |
775 | c = lookup_cmd (&command, cmdlist, "", 0, 0); |
776 | ||
777 | if (c == 0) | |
778 | return; | |
779 | ||
780 | /* There are three cases here. | |
781 | If c->prefixlist is nonzero, we have a prefix command. | |
782 | Print its documentation, then list its subcommands. | |
c5aa993b | 783 | |
9f60d481 AC |
784 | If c->func is non NULL, we really have a command. Print its |
785 | documentation and return. | |
c5aa993b | 786 | |
9f60d481 AC |
787 | If c->func is NULL, we have a class name. Print its |
788 | documentation (as if it were a command) and then set class to the | |
789 | number of this class so that the commands in the class will be | |
790 | listed. */ | |
c906108c SS |
791 | |
792 | fputs_filtered (c->doc, stream); | |
793 | fputs_filtered ("\n", stream); | |
794 | ||
9f60d481 | 795 | if (c->prefixlist == 0 && c->func != NULL) |
c906108c SS |
796 | return; |
797 | fprintf_filtered (stream, "\n"); | |
798 | ||
799 | /* If this is a prefix command, print it's subcommands */ | |
800 | if (c->prefixlist) | |
801 | help_list (*c->prefixlist, c->prefixname, all_commands, stream); | |
802 | ||
803 | /* If this is a class name, print all of the commands in the class */ | |
9f60d481 | 804 | if (c->func == NULL) |
c906108c SS |
805 | help_list (cmdlist, "", c->class, stream); |
806 | ||
73bc900d FN |
807 | if (c->hook_pre || c->hook_post) |
808 | fprintf_filtered (stream, | |
809 | "\nThis command has a hook (or hooks) defined:\n"); | |
810 | ||
811 | if (c->hook_pre) | |
812 | fprintf_filtered (stream, | |
813 | "\tThis command is run after : %s (pre hook)\n", | |
814 | c->hook_pre->name); | |
815 | if (c->hook_post) | |
816 | fprintf_filtered (stream, | |
817 | "\tThis command is run before : %s (post hook)\n", | |
818 | c->hook_post->name); | |
c906108c SS |
819 | } |
820 | ||
821 | /* | |
822 | * Get a specific kind of help on a command list. | |
823 | * | |
824 | * LIST is the list. | |
825 | * CMDTYPE is the prefix to use in the title string. | |
826 | * CLASS is the class with which to list the nodes of this list (see | |
827 | * documentation for help_cmd_list below), As usual, ALL_COMMANDS for | |
828 | * everything, ALL_CLASSES for just classes, and non-negative for only things | |
829 | * in a specific class. | |
830 | * and STREAM is the output stream on which to print things. | |
831 | * If you call this routine with a class >= 0, it recurses. | |
832 | */ | |
833 | void | |
fba45db2 KB |
834 | help_list (struct cmd_list_element *list, char *cmdtype, |
835 | enum command_class class, struct ui_file *stream) | |
c906108c SS |
836 | { |
837 | int len; | |
838 | char *cmdtype1, *cmdtype2; | |
c5aa993b | 839 | |
c906108c SS |
840 | /* If CMDTYPE is "foo ", CMDTYPE1 gets " foo" and CMDTYPE2 gets "foo sub" */ |
841 | len = strlen (cmdtype); | |
842 | cmdtype1 = (char *) alloca (len + 1); | |
843 | cmdtype1[0] = 0; | |
844 | cmdtype2 = (char *) alloca (len + 4); | |
845 | cmdtype2[0] = 0; | |
846 | if (len) | |
847 | { | |
848 | cmdtype1[0] = ' '; | |
849 | strncpy (cmdtype1 + 1, cmdtype, len - 1); | |
850 | cmdtype1[len] = 0; | |
851 | strncpy (cmdtype2, cmdtype, len - 1); | |
852 | strcpy (cmdtype2 + len - 1, " sub"); | |
853 | } | |
854 | ||
855 | if (class == all_classes) | |
856 | fprintf_filtered (stream, "List of classes of %scommands:\n\n", cmdtype2); | |
857 | else | |
858 | fprintf_filtered (stream, "List of %scommands:\n\n", cmdtype2); | |
859 | ||
c5aa993b | 860 | help_cmd_list (list, class, cmdtype, (int) class >= 0, stream); |
c906108c SS |
861 | |
862 | if (class == all_classes) | |
de74f71f MS |
863 | { |
864 | fprintf_filtered (stream, "\n\ | |
865 | Type \"help%s\" followed by a class name for a list of commands in ", | |
866 | cmdtype1); | |
867 | wrap_here (""); | |
868 | fprintf_filtered (stream, "that class."); | |
6e381ba0 VP |
869 | |
870 | fprintf_filtered (stream, "\n\ | |
871 | Type \"help all\" for the list of all commands."); | |
de74f71f | 872 | } |
c906108c | 873 | |
de74f71f | 874 | fprintf_filtered (stream, "\nType \"help%s\" followed by %scommand name ", |
c5aa993b | 875 | cmdtype1, cmdtype2); |
de74f71f MS |
876 | wrap_here (""); |
877 | fputs_filtered ("for ", stream); | |
878 | wrap_here (""); | |
879 | fputs_filtered ("full ", stream); | |
880 | wrap_here (""); | |
881 | fputs_filtered ("documentation.\n", stream); | |
6e381ba0 VP |
882 | fputs_filtered ("Type \"apropos word\" to search " |
883 | "for commands related to \"word\".\n", stream); | |
de74f71f MS |
884 | fputs_filtered ("Command name abbreviations are allowed if unambiguous.\n", |
885 | stream); | |
c906108c | 886 | } |
c5aa993b | 887 | |
49a5a3a3 | 888 | static void |
c85871a3 | 889 | help_all (struct ui_file *stream) |
49a5a3a3 GM |
890 | { |
891 | struct cmd_list_element *c; | |
892 | extern struct cmd_list_element *cmdlist; | |
6e381ba0 | 893 | int seen_unclassified = 0; |
49a5a3a3 GM |
894 | |
895 | for (c = cmdlist; c; c = c->next) | |
896 | { | |
897 | if (c->abbrev_flag) | |
898 | continue; | |
49a5a3a3 | 899 | /* If this is a class name, print all of the commands in the class */ |
6e381ba0 VP |
900 | |
901 | if (c->func == NULL) | |
902 | { | |
903 | fprintf_filtered (stream, "\nCommand class: %s\n\n", c->name); | |
904 | help_cmd_list (cmdlist, c->class, "", 1, stream); | |
905 | } | |
49a5a3a3 | 906 | } |
6e381ba0 VP |
907 | |
908 | /* While it's expected that all commands are in some class, | |
909 | as a safety measure, we'll print commands outside of any | |
910 | class at the end. */ | |
911 | ||
912 | for (c = cmdlist; c; c = c->next) | |
913 | { | |
914 | if (c->abbrev_flag) | |
915 | continue; | |
916 | ||
917 | if (c->class == no_class) | |
918 | { | |
919 | if (!seen_unclassified) | |
920 | { | |
921 | fprintf_filtered (stream, "\nUnclassified commands\n\n"); | |
922 | seen_unclassified = 1; | |
923 | } | |
924 | print_help_for_command (c, "", 1, stream); | |
925 | } | |
926 | } | |
927 | ||
49a5a3a3 GM |
928 | } |
929 | ||
c906108c | 930 | /* Print only the first line of STR on STREAM. */ |
d318976c | 931 | void |
fba45db2 | 932 | print_doc_line (struct ui_file *stream, char *str) |
c906108c SS |
933 | { |
934 | static char *line_buffer = 0; | |
935 | static int line_size; | |
d5b5ac79 | 936 | char *p; |
c906108c SS |
937 | |
938 | if (!line_buffer) | |
939 | { | |
940 | line_size = 80; | |
941 | line_buffer = (char *) xmalloc (line_size); | |
942 | } | |
943 | ||
944 | p = str; | |
945 | while (*p && *p != '\n' && *p != '.' && *p != ',') | |
946 | p++; | |
947 | if (p - str > line_size - 1) | |
948 | { | |
949 | line_size = p - str + 1; | |
b8c9b27d | 950 | xfree (line_buffer); |
c906108c SS |
951 | line_buffer = (char *) xmalloc (line_size); |
952 | } | |
953 | strncpy (line_buffer, str, p - str); | |
954 | line_buffer[p - str] = '\0'; | |
955 | if (islower (line_buffer[0])) | |
956 | line_buffer[0] = toupper (line_buffer[0]); | |
8b93c638 | 957 | ui_out_text (uiout, line_buffer); |
c906108c SS |
958 | } |
959 | ||
6e381ba0 VP |
960 | /* Print one-line help for command C. |
961 | If RECURSE is non-zero, also print one-line descriptions | |
962 | of all prefixed subcommands. */ | |
963 | static void | |
964 | print_help_for_command (struct cmd_list_element *c, char *prefix, int recurse, | |
965 | struct ui_file *stream) | |
966 | { | |
967 | fprintf_filtered (stream, "%s%s -- ", prefix, c->name); | |
968 | print_doc_line (stream, c->doc); | |
969 | fputs_filtered ("\n", stream); | |
970 | ||
971 | if (recurse | |
972 | && c->prefixlist != 0 | |
973 | && c->abbrev_flag == 0) | |
974 | /* Subcommands of a prefix command typically have 'all_commands' | |
975 | as class. If we pass CLASS to recursive invocation, | |
976 | most often we won't see anything. */ | |
977 | help_cmd_list (*c->prefixlist, all_commands, c->prefixname, 1, stream); | |
978 | } | |
979 | ||
c906108c SS |
980 | /* |
981 | * Implement a help command on command list LIST. | |
982 | * RECURSE should be non-zero if this should be done recursively on | |
983 | * all sublists of LIST. | |
984 | * PREFIX is the prefix to print before each command name. | |
985 | * STREAM is the stream upon which the output should be written. | |
986 | * CLASS should be: | |
c5aa993b | 987 | * A non-negative class number to list only commands in that |
c906108c | 988 | * class. |
c5aa993b JM |
989 | * ALL_COMMANDS to list all commands in list. |
990 | * ALL_CLASSES to list all classes in list. | |
c906108c SS |
991 | * |
992 | * Note that RECURSE will be active on *all* sublists, not just the | |
993 | * ones selected by the criteria above (ie. the selection mechanism | |
994 | * is at the low level, not the high-level). | |
995 | */ | |
996 | void | |
fba45db2 KB |
997 | help_cmd_list (struct cmd_list_element *list, enum command_class class, |
998 | char *prefix, int recurse, struct ui_file *stream) | |
c906108c | 999 | { |
d5b5ac79 | 1000 | struct cmd_list_element *c; |
c906108c SS |
1001 | |
1002 | for (c = list; c; c = c->next) | |
6e381ba0 | 1003 | { |
c906108c SS |
1004 | if (c->abbrev_flag == 0 && |
1005 | (class == all_commands | |
9f60d481 AC |
1006 | || (class == all_classes && c->func == NULL) |
1007 | || (class == c->class && c->func != NULL))) | |
c906108c | 1008 | { |
6e381ba0 | 1009 | print_help_for_command (c, prefix, recurse, stream); |
c906108c | 1010 | } |
c906108c SS |
1011 | } |
1012 | } | |
c906108c | 1013 | \f |
c5aa993b | 1014 | |
c906108c SS |
1015 | /* Search the input clist for 'command'. Return the command if |
1016 | found (or NULL if not), and return the number of commands | |
1017 | found in nfound */ | |
1018 | ||
1019 | static struct cmd_list_element * | |
fba45db2 KB |
1020 | find_cmd (char *command, int len, struct cmd_list_element *clist, |
1021 | int ignore_help_classes, int *nfound) | |
c906108c SS |
1022 | { |
1023 | struct cmd_list_element *found, *c; | |
1024 | ||
c5aa993b | 1025 | found = (struct cmd_list_element *) NULL; |
c906108c SS |
1026 | *nfound = 0; |
1027 | for (c = clist; c; c = c->next) | |
1028 | if (!strncmp (command, c->name, len) | |
9f60d481 | 1029 | && (!ignore_help_classes || c->func)) |
c906108c | 1030 | { |
c5aa993b JM |
1031 | found = c; |
1032 | (*nfound)++; | |
1033 | if (c->name[len] == '\0') | |
1034 | { | |
1035 | *nfound = 1; | |
1036 | break; | |
1037 | } | |
c906108c SS |
1038 | } |
1039 | return found; | |
1040 | } | |
1041 | ||
3386243e AS |
1042 | static int |
1043 | find_command_name_length (const char *text) | |
1044 | { | |
1045 | const char *p = text; | |
1046 | ||
1047 | /* Treating underscores as part of command words is important | |
1048 | so that "set args_foo()" doesn't get interpreted as | |
1049 | "set args _foo()". */ | |
1050 | /* Some characters are only used for TUI specific commands. However, they | |
1051 | are always allowed for the sake of consistency. | |
1052 | The XDB compatibility characters are only allowed when using the right | |
1053 | mode because they clash with other GDB commands - specifically '/' is | |
1054 | used as a suffix for print, examine and display. | |
1055 | Note that this is larger than the character set allowed when creating | |
1056 | user-defined commands. */ | |
1057 | while (isalnum (*p) || *p == '-' || *p == '_' || | |
1058 | /* Characters used by TUI specific commands. */ | |
1059 | *p == '+' || *p == '<' || *p == '>' || *p == '$' || | |
1060 | /* Characters used for XDB compatibility. */ | |
1061 | (xdb_commands && (*p == '!' || *p == '/' || *p == '?'))) | |
1062 | p++; | |
1063 | ||
1064 | return p - text; | |
1065 | } | |
1066 | ||
c906108c SS |
1067 | /* This routine takes a line of TEXT and a CLIST in which to start the |
1068 | lookup. When it returns it will have incremented the text pointer past | |
1069 | the section of text it matched, set *RESULT_LIST to point to the list in | |
1070 | which the last word was matched, and will return a pointer to the cmd | |
1071 | list element which the text matches. It will return NULL if no match at | |
1072 | all was possible. It will return -1 (cast appropriately, ick) if ambigous | |
1073 | matches are possible; in this case *RESULT_LIST will be set to point to | |
1074 | the list in which there are ambiguous choices (and *TEXT will be set to | |
1075 | the ambiguous text string). | |
1076 | ||
1077 | If the located command was an abbreviation, this routine returns the base | |
1078 | command of the abbreviation. | |
1079 | ||
1080 | It does no error reporting whatsoever; control will always return | |
1081 | to the superior routine. | |
1082 | ||
1083 | In the case of an ambiguous return (-1), *RESULT_LIST will be set to point | |
1084 | at the prefix_command (ie. the best match) *or* (special case) will be NULL | |
1085 | if no prefix command was ever found. For example, in the case of "info a", | |
1086 | "info" matches without ambiguity, but "a" could be "args" or "address", so | |
1087 | *RESULT_LIST is set to the cmd_list_element for "info". So in this case | |
1088 | RESULT_LIST should not be interpeted as a pointer to the beginning of a | |
1089 | list; it simply points to a specific command. In the case of an ambiguous | |
1090 | return *TEXT is advanced past the last non-ambiguous prefix (e.g. | |
1091 | "info t" can be "info types" or "info target"; upon return *TEXT has been | |
1092 | advanced past "info "). | |
1093 | ||
1094 | If RESULT_LIST is NULL, don't set *RESULT_LIST (but don't otherwise | |
1095 | affect the operation). | |
1096 | ||
1097 | This routine does *not* modify the text pointed to by TEXT. | |
c5aa993b | 1098 | |
c906108c SS |
1099 | If IGNORE_HELP_CLASSES is nonzero, ignore any command list elements which |
1100 | are actually help classes rather than commands (i.e. the function field of | |
1101 | the struct cmd_list_element is NULL). */ | |
1102 | ||
1103 | struct cmd_list_element * | |
fba45db2 KB |
1104 | lookup_cmd_1 (char **text, struct cmd_list_element *clist, |
1105 | struct cmd_list_element **result_list, int ignore_help_classes) | |
c906108c | 1106 | { |
3386243e | 1107 | char *command; |
c906108c SS |
1108 | int len, tmp, nfound; |
1109 | struct cmd_list_element *found, *c; | |
56382845 | 1110 | char *line = *text; |
c906108c SS |
1111 | |
1112 | while (**text == ' ' || **text == '\t') | |
1113 | (*text)++; | |
1114 | ||
3386243e AS |
1115 | /* Identify the name of the command. */ |
1116 | len = find_command_name_length (*text); | |
c906108c SS |
1117 | |
1118 | /* If nothing but whitespace, return 0. */ | |
3386243e | 1119 | if (len == 0) |
c906108c | 1120 | return 0; |
c5aa993b | 1121 | |
c906108c SS |
1122 | /* *text and p now bracket the first command word to lookup (and |
1123 | it's length is len). We copy this into a local temporary */ | |
1124 | ||
1125 | ||
1126 | command = (char *) alloca (len + 1); | |
1127 | for (tmp = 0; tmp < len; tmp++) | |
1128 | { | |
1129 | char x = (*text)[tmp]; | |
1130 | command[tmp] = x; | |
1131 | } | |
1132 | command[len] = '\0'; | |
1133 | ||
1134 | /* Look it up. */ | |
1135 | found = 0; | |
1136 | nfound = 0; | |
c5aa993b | 1137 | found = find_cmd (command, len, clist, ignore_help_classes, &nfound); |
c906108c SS |
1138 | |
1139 | /* | |
c5aa993b JM |
1140 | ** We didn't find the command in the entered case, so lower case it |
1141 | ** and search again. | |
1142 | */ | |
c906108c SS |
1143 | if (!found || nfound == 0) |
1144 | { | |
1145 | for (tmp = 0; tmp < len; tmp++) | |
c5aa993b JM |
1146 | { |
1147 | char x = command[tmp]; | |
1148 | command[tmp] = isupper (x) ? tolower (x) : x; | |
1149 | } | |
1150 | found = find_cmd (command, len, clist, ignore_help_classes, &nfound); | |
c906108c SS |
1151 | } |
1152 | ||
1153 | /* If nothing matches, we have a simple failure. */ | |
1154 | if (nfound == 0) | |
1155 | return 0; | |
1156 | ||
1157 | if (nfound > 1) | |
1158 | { | |
1159 | if (result_list != NULL) | |
1160 | /* Will be modified in calling routine | |
1161 | if we know what the prefix command is. */ | |
c5aa993b JM |
1162 | *result_list = 0; |
1163 | return (struct cmd_list_element *) -1; /* Ambiguous. */ | |
c906108c SS |
1164 | } |
1165 | ||
1166 | /* We've matched something on this list. Move text pointer forward. */ | |
1167 | ||
3386243e | 1168 | *text += len; |
c906108c | 1169 | |
c906108c | 1170 | if (found->cmd_pointer) |
56382845 FN |
1171 | { |
1172 | /* We drop the alias (abbreviation) in favor of the command it is | |
1173 | pointing to. If the alias is deprecated, though, we need to | |
1174 | warn the user about it before we drop it. Note that while we | |
1175 | are warning about the alias, we may also warn about the command | |
1176 | itself and we will adjust the appropriate DEPRECATED_WARN_USER | |
1177 | flags */ | |
1178 | ||
1179 | if (found->flags & DEPRECATED_WARN_USER) | |
938f5214 | 1180 | deprecated_cmd_warning (&line); |
56382845 FN |
1181 | found = found->cmd_pointer; |
1182 | } | |
c906108c SS |
1183 | /* If we found a prefix command, keep looking. */ |
1184 | ||
1185 | if (found->prefixlist) | |
1186 | { | |
1187 | c = lookup_cmd_1 (text, *found->prefixlist, result_list, | |
1188 | ignore_help_classes); | |
1189 | if (!c) | |
1190 | { | |
1191 | /* Didn't find anything; this is as far as we got. */ | |
1192 | if (result_list != NULL) | |
1193 | *result_list = clist; | |
1194 | return found; | |
1195 | } | |
1196 | else if (c == (struct cmd_list_element *) -1) | |
1197 | { | |
1198 | /* We've gotten this far properly, but the next step | |
1199 | is ambiguous. We need to set the result list to the best | |
1200 | we've found (if an inferior hasn't already set it). */ | |
1201 | if (result_list != NULL) | |
1202 | if (!*result_list) | |
1203 | /* This used to say *result_list = *found->prefixlist | |
c5aa993b JM |
1204 | If that was correct, need to modify the documentation |
1205 | at the top of this function to clarify what is supposed | |
1206 | to be going on. */ | |
c906108c SS |
1207 | *result_list = found; |
1208 | return c; | |
1209 | } | |
1210 | else | |
1211 | { | |
1212 | /* We matched! */ | |
1213 | return c; | |
1214 | } | |
1215 | } | |
1216 | else | |
1217 | { | |
1218 | if (result_list != NULL) | |
1219 | *result_list = clist; | |
1220 | return found; | |
1221 | } | |
1222 | } | |
1223 | ||
1224 | /* All this hair to move the space to the front of cmdtype */ | |
1225 | ||
1226 | static void | |
fba45db2 | 1227 | undef_cmd_error (char *cmdtype, char *q) |
c906108c | 1228 | { |
8a3fe4f8 | 1229 | error (_("Undefined %scommand: \"%s\". Try \"help%s%.*s\"."), |
c5aa993b JM |
1230 | cmdtype, |
1231 | q, | |
1232 | *cmdtype ? " " : "", | |
823ca731 | 1233 | (int) strlen (cmdtype) - 1, |
c5aa993b | 1234 | cmdtype); |
c906108c SS |
1235 | } |
1236 | ||
1237 | /* Look up the contents of *LINE as a command in the command list LIST. | |
1238 | LIST is a chain of struct cmd_list_element's. | |
1239 | If it is found, return the struct cmd_list_element for that command | |
1240 | and update *LINE to point after the command name, at the first argument. | |
1241 | If not found, call error if ALLOW_UNKNOWN is zero | |
1242 | otherwise (or if error returns) return zero. | |
1243 | Call error if specified command is ambiguous, | |
1244 | unless ALLOW_UNKNOWN is negative. | |
1245 | CMDTYPE precedes the word "command" in the error message. | |
1246 | ||
1247 | If INGNORE_HELP_CLASSES is nonzero, ignore any command list | |
1248 | elements which are actually help classes rather than commands (i.e. | |
1249 | the function field of the struct cmd_list_element is 0). */ | |
1250 | ||
1251 | struct cmd_list_element * | |
fba45db2 KB |
1252 | lookup_cmd (char **line, struct cmd_list_element *list, char *cmdtype, |
1253 | int allow_unknown, int ignore_help_classes) | |
c906108c SS |
1254 | { |
1255 | struct cmd_list_element *last_list = 0; | |
3cebf8d8 | 1256 | struct cmd_list_element *c; |
c64601c7 FN |
1257 | |
1258 | /* Note: Do not remove trailing whitespace here because this | |
1259 | would be wrong for complete_command. Jim Kingdon */ | |
c5aa993b | 1260 | |
3cebf8d8 MS |
1261 | if (!*line) |
1262 | error (_("Lack of needed %scommand"), cmdtype); | |
1263 | ||
1264 | c = lookup_cmd_1 (line, list, &last_list, ignore_help_classes); | |
1265 | ||
c906108c SS |
1266 | if (!c) |
1267 | { | |
1268 | if (!allow_unknown) | |
1269 | { | |
3cebf8d8 MS |
1270 | char *q; |
1271 | int len = find_command_name_length (*line); | |
c906108c | 1272 | |
3cebf8d8 MS |
1273 | q = (char *) alloca (len + 1); |
1274 | strncpy (q, *line, len); | |
1275 | q[len] = '\0'; | |
1276 | undef_cmd_error (cmdtype, q); | |
c906108c SS |
1277 | } |
1278 | else | |
1279 | return 0; | |
1280 | } | |
1281 | else if (c == (struct cmd_list_element *) -1) | |
1282 | { | |
1283 | /* Ambigous. Local values should be off prefixlist or called | |
c5aa993b | 1284 | values. */ |
c906108c SS |
1285 | int local_allow_unknown = (last_list ? last_list->allow_unknown : |
1286 | allow_unknown); | |
1287 | char *local_cmdtype = last_list ? last_list->prefixname : cmdtype; | |
1288 | struct cmd_list_element *local_list = | |
c5aa993b JM |
1289 | (last_list ? *(last_list->prefixlist) : list); |
1290 | ||
c906108c SS |
1291 | if (local_allow_unknown < 0) |
1292 | { | |
1293 | if (last_list) | |
1294 | return last_list; /* Found something. */ | |
1295 | else | |
1296 | return 0; /* Found nothing. */ | |
1297 | } | |
1298 | else | |
1299 | { | |
1300 | /* Report as error. */ | |
1301 | int amb_len; | |
1302 | char ambbuf[100]; | |
1303 | ||
1304 | for (amb_len = 0; | |
1305 | ((*line)[amb_len] && (*line)[amb_len] != ' ' | |
1306 | && (*line)[amb_len] != '\t'); | |
1307 | amb_len++) | |
1308 | ; | |
c5aa993b | 1309 | |
c906108c SS |
1310 | ambbuf[0] = 0; |
1311 | for (c = local_list; c; c = c->next) | |
1312 | if (!strncmp (*line, c->name, amb_len)) | |
1313 | { | |
c5aa993b | 1314 | if (strlen (ambbuf) + strlen (c->name) + 6 < (int) sizeof ambbuf) |
c906108c SS |
1315 | { |
1316 | if (strlen (ambbuf)) | |
1317 | strcat (ambbuf, ", "); | |
1318 | strcat (ambbuf, c->name); | |
1319 | } | |
1320 | else | |
1321 | { | |
1322 | strcat (ambbuf, ".."); | |
1323 | break; | |
1324 | } | |
1325 | } | |
8a3fe4f8 | 1326 | error (_("Ambiguous %scommand \"%s\": %s."), local_cmdtype, |
c906108c SS |
1327 | *line, ambbuf); |
1328 | return 0; /* lint */ | |
1329 | } | |
1330 | } | |
1331 | else | |
1332 | { | |
1333 | /* We've got something. It may still not be what the caller | |
1334 | wants (if this command *needs* a subcommand). */ | |
1335 | while (**line == ' ' || **line == '\t') | |
1336 | (*line)++; | |
1337 | ||
1338 | if (c->prefixlist && **line && !c->allow_unknown) | |
1339 | undef_cmd_error (c->prefixname, *line); | |
1340 | ||
1341 | /* Seems to be what he wants. Return it. */ | |
1342 | return c; | |
1343 | } | |
1344 | return 0; | |
1345 | } | |
c5aa993b | 1346 | |
56382845 FN |
1347 | /* We are here presumably because an alias or command in *TEXT is |
1348 | deprecated and a warning message should be generated. This function | |
1349 | decodes *TEXT and potentially generates a warning message as outlined | |
1350 | below. | |
1351 | ||
1352 | Example for 'set endian big' which has a fictitious alias 'seb'. | |
1353 | ||
1354 | If alias wasn't used in *TEXT, and the command is deprecated: | |
1355 | "warning: 'set endian big' is deprecated." | |
1356 | ||
1357 | If alias was used, and only the alias is deprecated: | |
1358 | "warning: 'seb' an alias for the command 'set endian big' is deprecated." | |
1359 | ||
1360 | If alias was used and command is deprecated (regardless of whether the | |
1361 | alias itself is deprecated: | |
1362 | ||
1363 | "warning: 'set endian big' (seb) is deprecated." | |
1364 | ||
1365 | After the message has been sent, clear the appropriate flags in the | |
1366 | command and/or the alias so the user is no longer bothered. | |
1367 | ||
1368 | */ | |
1369 | void | |
1370 | deprecated_cmd_warning (char **text) | |
1371 | { | |
1372 | struct cmd_list_element *alias = NULL; | |
1373 | struct cmd_list_element *prefix_cmd = NULL; | |
1374 | struct cmd_list_element *cmd = NULL; | |
1375 | struct cmd_list_element *c; | |
1376 | char *type; | |
edefbb7c | 1377 | |
56382845 FN |
1378 | if (!lookup_cmd_composition (*text, &alias, &prefix_cmd, &cmd)) |
1379 | /* return if text doesn't evaluate to a command */ | |
1380 | return; | |
1381 | ||
1382 | if (!((alias ? (alias->flags & DEPRECATED_WARN_USER) : 0) | |
1383 | || (cmd->flags & DEPRECATED_WARN_USER) ) ) | |
1384 | /* return if nothing is deprecated */ | |
1385 | return; | |
1386 | ||
1387 | printf_filtered ("Warning:"); | |
1388 | ||
1389 | if (alias && !(cmd->flags & CMD_DEPRECATED)) | |
1390 | printf_filtered (" '%s', an alias for the", alias->name); | |
1391 | ||
1392 | printf_filtered (" command '"); | |
1393 | ||
1394 | if (prefix_cmd) | |
1395 | printf_filtered ("%s", prefix_cmd->prefixname); | |
1396 | ||
1397 | printf_filtered ("%s", cmd->name); | |
1398 | ||
1399 | if (alias && (cmd->flags & CMD_DEPRECATED)) | |
1400 | printf_filtered ("' (%s) is deprecated.\n", alias->name); | |
1401 | else | |
1402 | printf_filtered ("' is deprecated.\n"); | |
1403 | ||
1404 | ||
1405 | /* if it is only the alias that is deprecated, we want to indicate the | |
1406 | new alias, otherwise we'll indicate the new command */ | |
1407 | ||
1408 | if (alias && !(cmd->flags & CMD_DEPRECATED)) | |
1409 | { | |
1410 | if (alias->replacement) | |
1411 | printf_filtered ("Use '%s'.\n\n", alias->replacement); | |
1412 | else | |
1413 | printf_filtered ("No alternative known.\n\n"); | |
1414 | } | |
1415 | else | |
1416 | { | |
1417 | if (cmd->replacement) | |
1418 | printf_filtered ("Use '%s'.\n\n", cmd->replacement); | |
1419 | else | |
1420 | printf_filtered ("No alternative known.\n\n"); | |
1421 | } | |
1422 | ||
1423 | /* We've warned you, now we'll keep quiet */ | |
1424 | if (alias) | |
1425 | alias->flags &= ~DEPRECATED_WARN_USER; | |
1426 | ||
1427 | cmd->flags &= ~DEPRECATED_WARN_USER; | |
1428 | } | |
1429 | ||
1430 | ||
1431 | ||
1432 | /* Look up the contents of LINE as a command in the command list 'cmdlist'. | |
1433 | Return 1 on success, 0 on failure. | |
1434 | ||
1435 | If LINE refers to an alias, *alias will point to that alias. | |
1436 | ||
1437 | If LINE is a postfix command (i.e. one that is preceeded by a prefix | |
1438 | command) set *prefix_cmd. | |
1439 | ||
1440 | Set *cmd to point to the command LINE indicates. | |
1441 | ||
1442 | If any of *alias, *prefix_cmd, or *cmd cannot be determined or do not | |
1443 | exist, they are NULL when we return. | |
1444 | ||
1445 | */ | |
1446 | int | |
1447 | lookup_cmd_composition (char *text, | |
1448 | struct cmd_list_element **alias, | |
1449 | struct cmd_list_element **prefix_cmd, | |
1450 | struct cmd_list_element **cmd) | |
1451 | { | |
3386243e | 1452 | char *command; |
56382845 FN |
1453 | int len, tmp, nfound; |
1454 | struct cmd_list_element *cur_list; | |
1455 | struct cmd_list_element *prev_cmd; | |
1456 | *alias = NULL; | |
1457 | *prefix_cmd = NULL; | |
1458 | *cmd = NULL; | |
1459 | ||
1460 | cur_list = cmdlist; | |
1461 | ||
1462 | while (1) | |
1463 | { | |
1464 | /* Go through as many command lists as we need to | |
1465 | to find the command TEXT refers to. */ | |
1466 | ||
1467 | prev_cmd = *cmd; | |
1468 | ||
1469 | while (*text == ' ' || *text == '\t') | |
1470 | (text)++; | |
1471 | ||
3386243e AS |
1472 | /* Identify the name of the command. */ |
1473 | len = find_command_name_length (text); | |
56382845 FN |
1474 | |
1475 | /* If nothing but whitespace, return. */ | |
3386243e AS |
1476 | if (len == 0) |
1477 | return 0; | |
56382845 | 1478 | |
3386243e | 1479 | /* text is the start of the first command word to lookup (and |
56382845 FN |
1480 | it's length is len). We copy this into a local temporary */ |
1481 | ||
1482 | command = (char *) alloca (len + 1); | |
1483 | for (tmp = 0; tmp < len; tmp++) | |
1484 | { | |
1485 | char x = text[tmp]; | |
1486 | command[tmp] = x; | |
1487 | } | |
1488 | command[len] = '\0'; | |
1489 | ||
1490 | /* Look it up. */ | |
1491 | *cmd = 0; | |
1492 | nfound = 0; | |
1493 | *cmd = find_cmd (command, len, cur_list, 1, &nfound); | |
1494 | ||
1495 | /* We didn't find the command in the entered case, so lower case it | |
1496 | and search again. | |
1497 | */ | |
1498 | if (!*cmd || nfound == 0) | |
1499 | { | |
1500 | for (tmp = 0; tmp < len; tmp++) | |
1501 | { | |
1502 | char x = command[tmp]; | |
1503 | command[tmp] = isupper (x) ? tolower (x) : x; | |
1504 | } | |
1505 | *cmd = find_cmd (command, len, cur_list, 1, &nfound); | |
1506 | } | |
1507 | ||
1508 | if (*cmd == (struct cmd_list_element *) -1) | |
1509 | { | |
1510 | return 0; /* ambiguous */ | |
1511 | } | |
1512 | ||
1513 | if (*cmd == NULL) | |
1514 | return 0; /* nothing found */ | |
1515 | else | |
1516 | { | |
1517 | if ((*cmd)->cmd_pointer) | |
1518 | { | |
1519 | /* cmd was actually an alias, we note that an alias was used | |
1520 | (by assigning *alais) and we set *cmd. | |
1521 | */ | |
1522 | *alias = *cmd; | |
1523 | *cmd = (*cmd)->cmd_pointer; | |
1524 | } | |
1525 | *prefix_cmd = prev_cmd; | |
1526 | } | |
1527 | if ((*cmd)->prefixlist) | |
1528 | cur_list = *(*cmd)->prefixlist; | |
1529 | else | |
1530 | return 1; | |
1531 | ||
3386243e | 1532 | text += len; |
56382845 FN |
1533 | } |
1534 | } | |
1535 | ||
c906108c SS |
1536 | /* Helper function for SYMBOL_COMPLETION_FUNCTION. */ |
1537 | ||
1538 | /* Return a vector of char pointers which point to the different | |
1539 | possible completions in LIST of TEXT. | |
1540 | ||
1541 | WORD points in the same buffer as TEXT, and completions should be | |
1542 | returned relative to this position. For example, suppose TEXT is "foo" | |
1543 | and we want to complete to "foobar". If WORD is "oo", return | |
1544 | "oobar"; if WORD is "baz/foo", return "baz/foobar". */ | |
1545 | ||
1546 | char ** | |
fba45db2 | 1547 | complete_on_cmdlist (struct cmd_list_element *list, char *text, char *word) |
c906108c SS |
1548 | { |
1549 | struct cmd_list_element *ptr; | |
1550 | char **matchlist; | |
1551 | int sizeof_matchlist; | |
1552 | int matches; | |
1553 | int textlen = strlen (text); | |
1554 | ||
1555 | sizeof_matchlist = 10; | |
1556 | matchlist = (char **) xmalloc (sizeof_matchlist * sizeof (char *)); | |
1557 | matches = 0; | |
1558 | ||
1559 | for (ptr = list; ptr; ptr = ptr->next) | |
1560 | if (!strncmp (ptr->name, text, textlen) | |
1561 | && !ptr->abbrev_flag | |
9f60d481 | 1562 | && (ptr->func |
c906108c SS |
1563 | || ptr->prefixlist)) |
1564 | { | |
1565 | if (matches == sizeof_matchlist) | |
1566 | { | |
1567 | sizeof_matchlist *= 2; | |
c5aa993b | 1568 | matchlist = (char **) xrealloc ((char *) matchlist, |
c906108c SS |
1569 | (sizeof_matchlist |
1570 | * sizeof (char *))); | |
1571 | } | |
1572 | ||
c5aa993b | 1573 | matchlist[matches] = (char *) |
c906108c SS |
1574 | xmalloc (strlen (word) + strlen (ptr->name) + 1); |
1575 | if (word == text) | |
1576 | strcpy (matchlist[matches], ptr->name); | |
1577 | else if (word > text) | |
1578 | { | |
1579 | /* Return some portion of ptr->name. */ | |
1580 | strcpy (matchlist[matches], ptr->name + (word - text)); | |
1581 | } | |
1582 | else | |
1583 | { | |
1584 | /* Return some of text plus ptr->name. */ | |
1585 | strncpy (matchlist[matches], word, text - word); | |
1586 | matchlist[matches][text - word] = '\0'; | |
1587 | strcat (matchlist[matches], ptr->name); | |
1588 | } | |
1589 | ++matches; | |
1590 | } | |
1591 | ||
1592 | if (matches == 0) | |
1593 | { | |
b8c9b27d | 1594 | xfree (matchlist); |
c906108c SS |
1595 | matchlist = 0; |
1596 | } | |
1597 | else | |
1598 | { | |
c5aa993b JM |
1599 | matchlist = (char **) xrealloc ((char *) matchlist, ((matches + 1) |
1600 | * sizeof (char *))); | |
c906108c SS |
1601 | matchlist[matches] = (char *) 0; |
1602 | } | |
1603 | ||
1604 | return matchlist; | |
1605 | } | |
1606 | ||
1607 | /* Helper function for SYMBOL_COMPLETION_FUNCTION. */ | |
1608 | ||
1609 | /* Return a vector of char pointers which point to the different | |
1610 | possible completions in CMD of TEXT. | |
1611 | ||
1612 | WORD points in the same buffer as TEXT, and completions should be | |
1613 | returned relative to this position. For example, suppose TEXT is "foo" | |
1614 | and we want to complete to "foobar". If WORD is "oo", return | |
1615 | "oobar"; if WORD is "baz/foo", return "baz/foobar". */ | |
1616 | ||
1617 | char ** | |
53904c9e AC |
1618 | complete_on_enum (const char *enumlist[], |
1619 | char *text, | |
1620 | char *word) | |
c906108c SS |
1621 | { |
1622 | char **matchlist; | |
1623 | int sizeof_matchlist; | |
1624 | int matches; | |
1625 | int textlen = strlen (text); | |
1626 | int i; | |
53904c9e | 1627 | const char *name; |
c906108c SS |
1628 | |
1629 | sizeof_matchlist = 10; | |
1630 | matchlist = (char **) xmalloc (sizeof_matchlist * sizeof (char *)); | |
1631 | matches = 0; | |
1632 | ||
1633 | for (i = 0; (name = enumlist[i]) != NULL; i++) | |
1634 | if (strncmp (name, text, textlen) == 0) | |
1635 | { | |
1636 | if (matches == sizeof_matchlist) | |
1637 | { | |
1638 | sizeof_matchlist *= 2; | |
c5aa993b | 1639 | matchlist = (char **) xrealloc ((char *) matchlist, |
c906108c SS |
1640 | (sizeof_matchlist |
1641 | * sizeof (char *))); | |
1642 | } | |
1643 | ||
c5aa993b | 1644 | matchlist[matches] = (char *) |
c906108c SS |
1645 | xmalloc (strlen (word) + strlen (name) + 1); |
1646 | if (word == text) | |
1647 | strcpy (matchlist[matches], name); | |
1648 | else if (word > text) | |
1649 | { | |
1650 | /* Return some portion of name. */ | |
1651 | strcpy (matchlist[matches], name + (word - text)); | |
1652 | } | |
1653 | else | |
1654 | { | |
1655 | /* Return some of text plus name. */ | |
1656 | strncpy (matchlist[matches], word, text - word); | |
1657 | matchlist[matches][text - word] = '\0'; | |
1658 | strcat (matchlist[matches], name); | |
1659 | } | |
1660 | ++matches; | |
1661 | } | |
1662 | ||
1663 | if (matches == 0) | |
1664 | { | |
b8c9b27d | 1665 | xfree (matchlist); |
c906108c SS |
1666 | matchlist = 0; |
1667 | } | |
1668 | else | |
1669 | { | |
c5aa993b JM |
1670 | matchlist = (char **) xrealloc ((char *) matchlist, ((matches + 1) |
1671 | * sizeof (char *))); | |
c906108c SS |
1672 | matchlist[matches] = (char *) 0; |
1673 | } | |
1674 | ||
1675 | return matchlist; | |
1676 | } | |
1677 | ||
f436dd25 MH |
1678 | |
1679 | /* check function pointer */ | |
1680 | int | |
1681 | cmd_func_p (struct cmd_list_element *cmd) | |
1682 | { | |
1683 | return (cmd->func != NULL); | |
1684 | } | |
1685 | ||
1686 | ||
1687 | /* call the command function */ | |
1688 | void | |
1689 | cmd_func (struct cmd_list_element *cmd, char *args, int from_tty) | |
1690 | { | |
1691 | if (cmd_func_p (cmd)) | |
1692 | (*cmd->func) (cmd, args, from_tty); | |
1693 | else | |
8a3fe4f8 | 1694 | error (_("Invalid command")); |
f436dd25 MH |
1695 | } |
1696 | ||
1697 |