Commit | Line | Data |
---|---|---|
c906108c | 1 | /* Handle lists of commands, their decoding and documentation, for GDB. |
d9fcf2fb | 2 | Copyright 1986, 1989, 1990, 1991, 1998, 2000 Free Software Foundation, Inc. |
c906108c | 3 | |
c5aa993b JM |
4 | This program is free software; you can redistribute it and/or modify |
5 | it under the terms of the GNU General Public License as published by | |
6 | the Free Software Foundation; either version 2 of the License, or | |
7 | (at your option) any later version. | |
c906108c | 8 | |
c5aa993b JM |
9 | This program is distributed in the hope that it will be useful, |
10 | but WITHOUT ANY WARRANTY; without even the implied warranty of | |
11 | MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the | |
12 | GNU General Public License for more details. | |
c906108c | 13 | |
c5aa993b JM |
14 | You should have received a copy of the GNU General Public License |
15 | along with this program; if not, write to the Free Software | |
16 | Foundation, Inc., 59 Temple Place - Suite 330, | |
17 | Boston, MA 02111-1307, USA. */ | |
c906108c SS |
18 | |
19 | #include "defs.h" | |
20 | #include "gdbcmd.h" | |
21 | #include "symtab.h" | |
22 | #include "value.h" | |
23 | #include <ctype.h> | |
24 | #include "gdb_string.h" | |
8b93c638 JM |
25 | #ifdef UI_OUT |
26 | #include "ui-out.h" | |
27 | #endif | |
c906108c | 28 | |
03f2053f | 29 | #include "gdb_wait.h" |
6837a0a2 | 30 | #include "gnu-regex.h" |
53a5351d JM |
31 | /* FIXME: this should be auto-configured! */ |
32 | #ifdef __MSDOS__ | |
33 | # define CANT_FORK | |
34 | #endif | |
35 | ||
c906108c SS |
36 | /* Prototypes for local functions */ |
37 | ||
a14ed312 | 38 | static void undef_cmd_error (char *, char *); |
c906108c | 39 | |
a14ed312 | 40 | static void show_user (char *, int); |
c906108c | 41 | |
d9fcf2fb | 42 | static void show_user_1 (struct cmd_list_element *, struct ui_file *); |
c906108c | 43 | |
a14ed312 | 44 | static void make_command (char *, int); |
c906108c | 45 | |
a14ed312 | 46 | static void shell_escape (char *, int); |
c906108c | 47 | |
a14ed312 | 48 | static int parse_binary_operation (char *); |
c906108c | 49 | |
d9fcf2fb | 50 | static void print_doc_line (struct ui_file *, char *); |
c906108c | 51 | |
a14ed312 KB |
52 | static struct cmd_list_element *find_cmd (char *command, |
53 | int len, | |
54 | struct cmd_list_element *clist, | |
55 | int ignore_help_classes, | |
56 | int *nfound); | |
6837a0a2 DB |
57 | static void apropos_cmd_helper (struct ui_file *, struct cmd_list_element *, |
58 | struct re_pattern_buffer *, char *); | |
59 | ||
c85871a3 AC |
60 | static void help_all (struct ui_file *stream); |
61 | ||
6837a0a2 | 62 | void apropos_command (char *, int); |
392a587b | 63 | |
a14ed312 | 64 | void _initialize_command (void); |
c906108c SS |
65 | |
66 | /* Add element named NAME. | |
67 | CLASS is the top level category into which commands are broken down | |
68 | for "help" purposes. | |
69 | FUN should be the function to execute the command; | |
70 | it will get a character string as argument, with leading | |
71 | and trailing blanks already eliminated. | |
72 | ||
73 | DOC is a documentation string for the command. | |
74 | Its first line should be a complete sentence. | |
75 | It should start with ? for a command that is an abbreviation | |
76 | or with * for a command that most users don't need to know about. | |
77 | ||
78 | Add this command to command list *LIST. | |
79 | ||
80 | Returns a pointer to the added command (not necessarily the head | |
81 | of *LIST). */ | |
82 | ||
83 | struct cmd_list_element * | |
84 | add_cmd (name, class, fun, doc, list) | |
85 | char *name; | |
86 | enum command_class class; | |
507f3c78 | 87 | void (*fun) (char *, int); |
c906108c SS |
88 | char *doc; |
89 | struct cmd_list_element **list; | |
90 | { | |
91 | register struct cmd_list_element *c | |
c5aa993b | 92 | = (struct cmd_list_element *) xmalloc (sizeof (struct cmd_list_element)); |
c906108c SS |
93 | struct cmd_list_element *p; |
94 | ||
95 | delete_cmd (name, list); | |
96 | ||
97 | if (*list == NULL || STRCMP ((*list)->name, name) >= 0) | |
98 | { | |
99 | c->next = *list; | |
100 | *list = c; | |
101 | } | |
102 | else | |
103 | { | |
104 | p = *list; | |
105 | while (p->next && STRCMP (p->next->name, name) <= 0) | |
c5aa993b JM |
106 | { |
107 | p = p->next; | |
108 | } | |
c906108c SS |
109 | c->next = p->next; |
110 | p->next = c; | |
111 | } | |
112 | ||
113 | c->name = name; | |
114 | c->class = class; | |
115 | c->function.cfunc = fun; | |
116 | c->doc = doc; | |
56382845 FN |
117 | c->flags = 0; |
118 | c->replacement = NULL; | |
c906108c SS |
119 | c->hook = NULL; |
120 | c->prefixlist = NULL; | |
121 | c->prefixname = NULL; | |
122 | c->allow_unknown = 0; | |
123 | c->abbrev_flag = 0; | |
124 | c->completer = make_symbol_completion_list; | |
125 | c->type = not_set_cmd; | |
126 | c->var = NULL; | |
127 | c->var_type = var_boolean; | |
128 | c->enums = NULL; | |
129 | c->user_commands = NULL; | |
130 | c->hookee = NULL; | |
131 | c->cmd_pointer = NULL; | |
132 | ||
133 | return c; | |
134 | } | |
135 | ||
56382845 FN |
136 | |
137 | /* Deprecates a command CMD. | |
138 | REPLACEMENT is the name of the command which should be used in place | |
139 | of this command, or NULL if no such command exists. | |
140 | ||
141 | This function does not check to see if command REPLACEMENT exists | |
142 | since gdb may not have gotten around to adding REPLACEMENT when this | |
143 | function is called. | |
144 | ||
145 | Returns a pointer to the deprecated command. */ | |
146 | ||
147 | struct cmd_list_element * | |
fba45db2 | 148 | deprecate_cmd (struct cmd_list_element *cmd, char *replacement) |
56382845 FN |
149 | { |
150 | cmd->flags |= (CMD_DEPRECATED | DEPRECATED_WARN_USER); | |
151 | ||
152 | if (replacement != NULL) | |
153 | cmd->replacement = replacement; | |
154 | else | |
155 | cmd->replacement = NULL; | |
156 | ||
157 | return cmd; | |
158 | } | |
159 | ||
160 | ||
c906108c SS |
161 | /* Same as above, except that the abbrev_flag is set. */ |
162 | ||
c5aa993b | 163 | #if 0 /* Currently unused */ |
c906108c SS |
164 | |
165 | struct cmd_list_element * | |
166 | add_abbrev_cmd (name, class, fun, doc, list) | |
167 | char *name; | |
168 | enum command_class class; | |
507f3c78 | 169 | void (*fun) (char *, int); |
c906108c SS |
170 | char *doc; |
171 | struct cmd_list_element **list; | |
172 | { | |
173 | register struct cmd_list_element *c | |
c5aa993b | 174 | = add_cmd (name, class, fun, doc, list); |
c906108c SS |
175 | |
176 | c->abbrev_flag = 1; | |
177 | return c; | |
178 | } | |
179 | ||
180 | #endif | |
181 | ||
182 | struct cmd_list_element * | |
fba45db2 KB |
183 | add_alias_cmd (char *name, char *oldname, enum command_class class, |
184 | int abbrev_flag, struct cmd_list_element **list) | |
c906108c SS |
185 | { |
186 | /* Must do this since lookup_cmd tries to side-effect its first arg */ | |
187 | char *copied_name; | |
188 | register struct cmd_list_element *old; | |
189 | register struct cmd_list_element *c; | |
190 | copied_name = (char *) alloca (strlen (oldname) + 1); | |
191 | strcpy (copied_name, oldname); | |
c5aa993b | 192 | old = lookup_cmd (&copied_name, *list, "", 1, 1); |
c906108c SS |
193 | |
194 | if (old == 0) | |
195 | { | |
196 | delete_cmd (name, list); | |
197 | return 0; | |
198 | } | |
199 | ||
200 | c = add_cmd (name, class, old->function.cfunc, old->doc, list); | |
201 | c->prefixlist = old->prefixlist; | |
202 | c->prefixname = old->prefixname; | |
203 | c->allow_unknown = old->allow_unknown; | |
204 | c->abbrev_flag = abbrev_flag; | |
205 | c->cmd_pointer = old; | |
206 | return c; | |
207 | } | |
208 | ||
209 | /* Like add_cmd but adds an element for a command prefix: | |
210 | a name that should be followed by a subcommand to be looked up | |
211 | in another command list. PREFIXLIST should be the address | |
212 | of the variable containing that list. */ | |
213 | ||
214 | struct cmd_list_element * | |
215 | add_prefix_cmd (name, class, fun, doc, prefixlist, prefixname, | |
216 | allow_unknown, list) | |
217 | char *name; | |
218 | enum command_class class; | |
507f3c78 | 219 | void (*fun) (char *, int); |
c906108c SS |
220 | char *doc; |
221 | struct cmd_list_element **prefixlist; | |
222 | char *prefixname; | |
223 | int allow_unknown; | |
224 | struct cmd_list_element **list; | |
225 | { | |
226 | register struct cmd_list_element *c = add_cmd (name, class, fun, doc, list); | |
227 | c->prefixlist = prefixlist; | |
228 | c->prefixname = prefixname; | |
229 | c->allow_unknown = allow_unknown; | |
230 | return c; | |
231 | } | |
232 | ||
233 | /* Like add_prefix_cmd but sets the abbrev_flag on the new command. */ | |
c5aa993b | 234 | |
c906108c SS |
235 | struct cmd_list_element * |
236 | add_abbrev_prefix_cmd (name, class, fun, doc, prefixlist, prefixname, | |
237 | allow_unknown, list) | |
238 | char *name; | |
239 | enum command_class class; | |
507f3c78 | 240 | void (*fun) (char *, int); |
c906108c SS |
241 | char *doc; |
242 | struct cmd_list_element **prefixlist; | |
243 | char *prefixname; | |
244 | int allow_unknown; | |
245 | struct cmd_list_element **list; | |
246 | { | |
247 | register struct cmd_list_element *c = add_cmd (name, class, fun, doc, list); | |
248 | c->prefixlist = prefixlist; | |
249 | c->prefixname = prefixname; | |
250 | c->allow_unknown = allow_unknown; | |
251 | c->abbrev_flag = 1; | |
252 | return c; | |
253 | } | |
254 | ||
255 | /* This is an empty "cfunc". */ | |
256 | void | |
fba45db2 | 257 | not_just_help_class_command (char *args, int from_tty) |
c906108c SS |
258 | { |
259 | } | |
260 | ||
261 | /* This is an empty "sfunc". */ | |
a14ed312 | 262 | static void empty_sfunc (char *, int, struct cmd_list_element *); |
c906108c SS |
263 | |
264 | static void | |
fba45db2 | 265 | empty_sfunc (char *args, int from_tty, struct cmd_list_element *c) |
c906108c SS |
266 | { |
267 | } | |
268 | ||
269 | /* Add element named NAME to command list LIST (the list for set | |
270 | or some sublist thereof). | |
271 | CLASS is as in add_cmd. | |
272 | VAR_TYPE is the kind of thing we are setting. | |
273 | VAR is address of the variable being controlled by this command. | |
274 | DOC is the documentation string. */ | |
275 | ||
276 | struct cmd_list_element * | |
1ed2a135 AC |
277 | add_set_cmd (char *name, |
278 | enum command_class class, | |
279 | var_types var_type, | |
280 | void *var, | |
281 | char *doc, | |
282 | struct cmd_list_element **list) | |
c906108c SS |
283 | { |
284 | struct cmd_list_element *c | |
c5aa993b | 285 | = add_cmd (name, class, NO_FUNCTION, doc, list); |
c906108c SS |
286 | |
287 | c->type = set_cmd; | |
288 | c->var_type = var_type; | |
289 | c->var = var; | |
290 | /* This needs to be something besides NO_FUNCTION so that this isn't | |
291 | treated as a help class. */ | |
292 | c->function.sfunc = empty_sfunc; | |
293 | return c; | |
294 | } | |
295 | ||
296 | /* Add element named NAME to command list LIST (the list for set | |
297 | or some sublist thereof). | |
298 | CLASS is as in add_cmd. | |
299 | ENUMLIST is a list of strings which may follow NAME. | |
300 | VAR is address of the variable which will contain the matching string | |
c5aa993b | 301 | (from ENUMLIST). |
c906108c SS |
302 | DOC is the documentation string. */ |
303 | ||
304 | struct cmd_list_element * | |
1ed2a135 AC |
305 | add_set_enum_cmd (char *name, |
306 | enum command_class class, | |
53904c9e AC |
307 | const char *enumlist[], |
308 | const char **var, | |
1ed2a135 AC |
309 | char *doc, |
310 | struct cmd_list_element **list) | |
c906108c SS |
311 | { |
312 | struct cmd_list_element *c | |
c5aa993b | 313 | = add_set_cmd (name, class, var_enum, var, doc, list); |
c906108c SS |
314 | c->enums = enumlist; |
315 | ||
316 | return c; | |
317 | } | |
318 | ||
97c3646f AC |
319 | /* Add element named NAME to command list LIST (the list for set |
320 | or some sublist thereof). | |
321 | CLASS is as in add_cmd. | |
322 | VAR is address of the variable which will contain the value. | |
323 | DOC is the documentation string. */ | |
324 | struct cmd_list_element * | |
325 | add_set_auto_boolean_cmd (char *name, | |
326 | enum command_class class, | |
327 | enum cmd_auto_boolean *var, | |
328 | char *doc, | |
329 | struct cmd_list_element **list) | |
330 | { | |
331 | static const char *auto_boolean_enums[] = { "on", "off", "auto", NULL }; | |
332 | struct cmd_list_element *c; | |
333 | c = add_set_cmd (name, class, var_auto_boolean, var, doc, list); | |
334 | c->enums = auto_boolean_enums; | |
335 | return c; | |
336 | } | |
337 | ||
c906108c SS |
338 | /* Where SETCMD has already been added, add the corresponding show |
339 | command to LIST and return a pointer to the added command (not | |
340 | necessarily the head of LIST). */ | |
341 | struct cmd_list_element * | |
fba45db2 KB |
342 | add_show_from_set (struct cmd_list_element *setcmd, |
343 | struct cmd_list_element **list) | |
c906108c SS |
344 | { |
345 | struct cmd_list_element *showcmd = | |
c5aa993b | 346 | (struct cmd_list_element *) xmalloc (sizeof (struct cmd_list_element)); |
c906108c SS |
347 | struct cmd_list_element *p; |
348 | ||
349 | memcpy (showcmd, setcmd, sizeof (struct cmd_list_element)); | |
350 | delete_cmd (showcmd->name, list); | |
351 | showcmd->type = show_cmd; | |
c5aa993b | 352 | |
c906108c SS |
353 | /* Replace "set " at start of docstring with "show ". */ |
354 | if (setcmd->doc[0] == 'S' && setcmd->doc[1] == 'e' | |
355 | && setcmd->doc[2] == 't' && setcmd->doc[3] == ' ') | |
356 | showcmd->doc = concat ("Show ", setcmd->doc + 4, NULL); | |
357 | else | |
358 | fprintf_unfiltered (gdb_stderr, "GDB internal error: Bad docstring for set command\n"); | |
c5aa993b JM |
359 | |
360 | if (*list == NULL || STRCMP ((*list)->name, showcmd->name) >= 0) | |
c906108c SS |
361 | { |
362 | showcmd->next = *list; | |
363 | *list = showcmd; | |
364 | } | |
365 | else | |
366 | { | |
367 | p = *list; | |
368 | while (p->next && STRCMP (p->next->name, showcmd->name) <= 0) | |
c5aa993b JM |
369 | { |
370 | p = p->next; | |
371 | } | |
c906108c SS |
372 | showcmd->next = p->next; |
373 | p->next = showcmd; | |
374 | } | |
375 | ||
376 | return showcmd; | |
377 | } | |
378 | ||
379 | /* Remove the command named NAME from the command list. */ | |
380 | ||
381 | void | |
fba45db2 | 382 | delete_cmd (char *name, struct cmd_list_element **list) |
c906108c SS |
383 | { |
384 | register struct cmd_list_element *c; | |
385 | struct cmd_list_element *p; | |
386 | ||
387 | while (*list && STREQ ((*list)->name, name)) | |
388 | { | |
389 | if ((*list)->hookee) | |
390 | (*list)->hookee->hook = 0; /* Hook slips out of its mouth */ | |
391 | p = (*list)->next; | |
c5aa993b | 392 | free ((PTR) * list); |
c906108c SS |
393 | *list = p; |
394 | } | |
395 | ||
396 | if (*list) | |
397 | for (c = *list; c->next;) | |
398 | { | |
399 | if (STREQ (c->next->name, name)) | |
400 | { | |
401 | if (c->next->hookee) | |
c5aa993b | 402 | c->next->hookee->hook = 0; /* hooked cmd gets away. */ |
c906108c | 403 | p = c->next->next; |
c5aa993b | 404 | free ((PTR) c->next); |
c906108c SS |
405 | c->next = p; |
406 | } | |
407 | else | |
408 | c = c->next; | |
409 | } | |
410 | } | |
6837a0a2 DB |
411 | /* Recursively walk the commandlist structures, and print out the |
412 | documentation of commands that match our regex in either their | |
413 | name, or their documentation. | |
414 | */ | |
415 | static void | |
416 | apropos_cmd_helper (struct ui_file *stream, struct cmd_list_element *commandlist, | |
417 | struct re_pattern_buffer *regex, char *prefix) | |
418 | { | |
419 | register struct cmd_list_element *c; | |
420 | int returnvalue=1; /*Needed to avoid double printing*/ | |
421 | /* Walk through the commands */ | |
422 | for (c=commandlist;c;c=c->next) | |
423 | { | |
424 | if (c->name != NULL) | |
425 | { | |
426 | /* Try to match against the name*/ | |
427 | returnvalue=re_search(regex,c->name,strlen(c->name),0,strlen(c->name),NULL); | |
428 | if (returnvalue >= 0) | |
429 | { | |
430 | /* Stolen from help_cmd_list. We don't directly use | |
431 | * help_cmd_list because it doesn't let us print out | |
432 | * single commands | |
433 | */ | |
434 | fprintf_filtered (stream, "%s%s -- ", prefix, c->name); | |
435 | print_doc_line (stream, c->doc); | |
436 | fputs_filtered ("\n", stream); | |
437 | returnvalue=0; /*Set this so we don't print it again.*/ | |
438 | } | |
439 | } | |
440 | if (c->doc != NULL && returnvalue != 0) | |
441 | { | |
442 | /* Try to match against documentation */ | |
443 | if (re_search(regex,c->doc,strlen(c->doc),0,strlen(c->doc),NULL) >=0) | |
444 | { | |
445 | /* Stolen from help_cmd_list. We don't directly use | |
446 | * help_cmd_list because it doesn't let us print out | |
447 | * single commands | |
448 | */ | |
449 | fprintf_filtered (stream, "%s%s -- ", prefix, c->name); | |
450 | print_doc_line (stream, c->doc); | |
451 | fputs_filtered ("\n", stream); | |
452 | } | |
453 | } | |
454 | /* Check if this command has subcommands */ | |
455 | if (c->prefixlist != NULL) | |
456 | { | |
457 | /* Recursively call ourselves on the subcommand list, | |
458 | passing the right prefix in. | |
459 | */ | |
460 | apropos_cmd_helper(stream,*c->prefixlist,regex,c->prefixname); | |
461 | } | |
462 | } | |
463 | } | |
464 | /* Search through names of commands and documentations for a certain | |
465 | regular expression. | |
466 | */ | |
467 | void | |
468 | apropos_command (char *searchstr, int from_tty) | |
469 | { | |
470 | extern struct cmd_list_element *cmdlist; /*This is the main command list*/ | |
471 | regex_t pattern; | |
472 | char *pattern_fastmap; | |
473 | char errorbuffer[512]; | |
474 | pattern_fastmap=calloc(256,sizeof(char)); | |
475 | if (searchstr == NULL) | |
476 | error("REGEXP string is empty"); | |
477 | ||
478 | if (regcomp(&pattern,searchstr,REG_ICASE) == 0) | |
479 | { | |
480 | pattern.fastmap=pattern_fastmap; | |
481 | re_compile_fastmap(&pattern); | |
482 | apropos_cmd_helper(gdb_stdout,cmdlist,&pattern,""); | |
483 | } | |
484 | else | |
485 | { | |
486 | regerror(regcomp(&pattern,searchstr,REG_ICASE),NULL,errorbuffer,512); | |
487 | error("Error in regular expression:%s",errorbuffer); | |
488 | } | |
489 | free(pattern_fastmap); | |
490 | } | |
491 | ||
c906108c SS |
492 | |
493 | /* This command really has to deal with two things: | |
494 | * 1) I want documentation on *this string* (usually called by | |
495 | * "help commandname"). | |
496 | * 2) I want documentation on *this list* (usually called by | |
497 | * giving a command that requires subcommands. Also called by saying | |
498 | * just "help".) | |
499 | * | |
500 | * I am going to split this into two seperate comamnds, help_cmd and | |
501 | * help_list. | |
502 | */ | |
503 | ||
504 | void | |
fba45db2 | 505 | help_cmd (char *command, struct ui_file *stream) |
c906108c SS |
506 | { |
507 | struct cmd_list_element *c; | |
508 | extern struct cmd_list_element *cmdlist; | |
509 | ||
510 | if (!command) | |
511 | { | |
512 | help_list (cmdlist, "", all_classes, stream); | |
513 | return; | |
514 | } | |
515 | ||
49a5a3a3 GM |
516 | if (strcmp (command, "all") == 0) |
517 | { | |
518 | help_all (stream); | |
519 | return; | |
520 | } | |
521 | ||
c906108c SS |
522 | c = lookup_cmd (&command, cmdlist, "", 0, 0); |
523 | ||
524 | if (c == 0) | |
525 | return; | |
526 | ||
527 | /* There are three cases here. | |
528 | If c->prefixlist is nonzero, we have a prefix command. | |
529 | Print its documentation, then list its subcommands. | |
c5aa993b | 530 | |
c906108c SS |
531 | If c->function is nonzero, we really have a command. |
532 | Print its documentation and return. | |
c5aa993b | 533 | |
c906108c SS |
534 | If c->function is zero, we have a class name. |
535 | Print its documentation (as if it were a command) | |
536 | and then set class to the number of this class | |
537 | so that the commands in the class will be listed. */ | |
538 | ||
539 | fputs_filtered (c->doc, stream); | |
540 | fputs_filtered ("\n", stream); | |
541 | ||
542 | if (c->prefixlist == 0 && c->function.cfunc != NULL) | |
543 | return; | |
544 | fprintf_filtered (stream, "\n"); | |
545 | ||
546 | /* If this is a prefix command, print it's subcommands */ | |
547 | if (c->prefixlist) | |
548 | help_list (*c->prefixlist, c->prefixname, all_commands, stream); | |
549 | ||
550 | /* If this is a class name, print all of the commands in the class */ | |
551 | if (c->function.cfunc == NULL) | |
552 | help_list (cmdlist, "", c->class, stream); | |
553 | ||
554 | if (c->hook) | |
555 | fprintf_filtered (stream, "\nThis command has a hook defined: %s\n", | |
556 | c->hook->name); | |
557 | } | |
558 | ||
559 | /* | |
560 | * Get a specific kind of help on a command list. | |
561 | * | |
562 | * LIST is the list. | |
563 | * CMDTYPE is the prefix to use in the title string. | |
564 | * CLASS is the class with which to list the nodes of this list (see | |
565 | * documentation for help_cmd_list below), As usual, ALL_COMMANDS for | |
566 | * everything, ALL_CLASSES for just classes, and non-negative for only things | |
567 | * in a specific class. | |
568 | * and STREAM is the output stream on which to print things. | |
569 | * If you call this routine with a class >= 0, it recurses. | |
570 | */ | |
571 | void | |
fba45db2 KB |
572 | help_list (struct cmd_list_element *list, char *cmdtype, |
573 | enum command_class class, struct ui_file *stream) | |
c906108c SS |
574 | { |
575 | int len; | |
576 | char *cmdtype1, *cmdtype2; | |
c5aa993b | 577 | |
c906108c SS |
578 | /* If CMDTYPE is "foo ", CMDTYPE1 gets " foo" and CMDTYPE2 gets "foo sub" */ |
579 | len = strlen (cmdtype); | |
580 | cmdtype1 = (char *) alloca (len + 1); | |
581 | cmdtype1[0] = 0; | |
582 | cmdtype2 = (char *) alloca (len + 4); | |
583 | cmdtype2[0] = 0; | |
584 | if (len) | |
585 | { | |
586 | cmdtype1[0] = ' '; | |
587 | strncpy (cmdtype1 + 1, cmdtype, len - 1); | |
588 | cmdtype1[len] = 0; | |
589 | strncpy (cmdtype2, cmdtype, len - 1); | |
590 | strcpy (cmdtype2 + len - 1, " sub"); | |
591 | } | |
592 | ||
593 | if (class == all_classes) | |
594 | fprintf_filtered (stream, "List of classes of %scommands:\n\n", cmdtype2); | |
595 | else | |
596 | fprintf_filtered (stream, "List of %scommands:\n\n", cmdtype2); | |
597 | ||
c5aa993b | 598 | help_cmd_list (list, class, cmdtype, (int) class >= 0, stream); |
c906108c SS |
599 | |
600 | if (class == all_classes) | |
601 | fprintf_filtered (stream, "\n\ | |
602 | Type \"help%s\" followed by a class name for a list of commands in that class.", | |
c5aa993b | 603 | cmdtype1); |
c906108c SS |
604 | |
605 | fprintf_filtered (stream, "\n\ | |
606 | Type \"help%s\" followed by %scommand name for full documentation.\n\ | |
607 | Command name abbreviations are allowed if unambiguous.\n", | |
c5aa993b | 608 | cmdtype1, cmdtype2); |
c906108c | 609 | } |
c5aa993b | 610 | |
49a5a3a3 | 611 | static void |
c85871a3 | 612 | help_all (struct ui_file *stream) |
49a5a3a3 GM |
613 | { |
614 | struct cmd_list_element *c; | |
615 | extern struct cmd_list_element *cmdlist; | |
616 | ||
617 | for (c = cmdlist; c; c = c->next) | |
618 | { | |
619 | if (c->abbrev_flag) | |
620 | continue; | |
621 | /* If this is a prefix command, print it's subcommands */ | |
622 | if (c->prefixlist) | |
623 | help_cmd_list (*c->prefixlist, all_commands, c->prefixname, 0, stream); | |
624 | ||
625 | /* If this is a class name, print all of the commands in the class */ | |
626 | else if (c->function.cfunc == NULL) | |
627 | help_cmd_list (cmdlist, c->class, "", 0, stream); | |
628 | } | |
629 | } | |
630 | ||
c906108c SS |
631 | /* Print only the first line of STR on STREAM. */ |
632 | static void | |
fba45db2 | 633 | print_doc_line (struct ui_file *stream, char *str) |
c906108c SS |
634 | { |
635 | static char *line_buffer = 0; | |
636 | static int line_size; | |
637 | register char *p; | |
638 | ||
639 | if (!line_buffer) | |
640 | { | |
641 | line_size = 80; | |
642 | line_buffer = (char *) xmalloc (line_size); | |
643 | } | |
644 | ||
645 | p = str; | |
646 | while (*p && *p != '\n' && *p != '.' && *p != ',') | |
647 | p++; | |
648 | if (p - str > line_size - 1) | |
649 | { | |
650 | line_size = p - str + 1; | |
c5aa993b | 651 | free ((PTR) line_buffer); |
c906108c SS |
652 | line_buffer = (char *) xmalloc (line_size); |
653 | } | |
654 | strncpy (line_buffer, str, p - str); | |
655 | line_buffer[p - str] = '\0'; | |
656 | if (islower (line_buffer[0])) | |
657 | line_buffer[0] = toupper (line_buffer[0]); | |
8b93c638 JM |
658 | #ifdef UI_OUT |
659 | ui_out_text (uiout, line_buffer); | |
660 | #else | |
c906108c | 661 | fputs_filtered (line_buffer, stream); |
8b93c638 | 662 | #endif |
c906108c SS |
663 | } |
664 | ||
665 | /* | |
666 | * Implement a help command on command list LIST. | |
667 | * RECURSE should be non-zero if this should be done recursively on | |
668 | * all sublists of LIST. | |
669 | * PREFIX is the prefix to print before each command name. | |
670 | * STREAM is the stream upon which the output should be written. | |
671 | * CLASS should be: | |
c5aa993b | 672 | * A non-negative class number to list only commands in that |
c906108c | 673 | * class. |
c5aa993b JM |
674 | * ALL_COMMANDS to list all commands in list. |
675 | * ALL_CLASSES to list all classes in list. | |
c906108c SS |
676 | * |
677 | * Note that RECURSE will be active on *all* sublists, not just the | |
678 | * ones selected by the criteria above (ie. the selection mechanism | |
679 | * is at the low level, not the high-level). | |
680 | */ | |
681 | void | |
fba45db2 KB |
682 | help_cmd_list (struct cmd_list_element *list, enum command_class class, |
683 | char *prefix, int recurse, struct ui_file *stream) | |
c906108c SS |
684 | { |
685 | register struct cmd_list_element *c; | |
686 | ||
687 | for (c = list; c; c = c->next) | |
688 | { | |
689 | if (c->abbrev_flag == 0 && | |
690 | (class == all_commands | |
c5aa993b JM |
691 | || (class == all_classes && c->function.cfunc == NULL) |
692 | || (class == c->class && c->function.cfunc != NULL))) | |
c906108c SS |
693 | { |
694 | fprintf_filtered (stream, "%s%s -- ", prefix, c->name); | |
695 | print_doc_line (stream, c->doc); | |
696 | fputs_filtered ("\n", stream); | |
697 | } | |
698 | if (recurse | |
699 | && c->prefixlist != 0 | |
700 | && c->abbrev_flag == 0) | |
701 | help_cmd_list (*c->prefixlist, class, c->prefixname, 1, stream); | |
702 | } | |
703 | } | |
c906108c | 704 | \f |
c5aa993b | 705 | |
c906108c SS |
706 | /* Search the input clist for 'command'. Return the command if |
707 | found (or NULL if not), and return the number of commands | |
708 | found in nfound */ | |
709 | ||
710 | static struct cmd_list_element * | |
fba45db2 KB |
711 | find_cmd (char *command, int len, struct cmd_list_element *clist, |
712 | int ignore_help_classes, int *nfound) | |
c906108c SS |
713 | { |
714 | struct cmd_list_element *found, *c; | |
715 | ||
c5aa993b | 716 | found = (struct cmd_list_element *) NULL; |
c906108c SS |
717 | *nfound = 0; |
718 | for (c = clist; c; c = c->next) | |
719 | if (!strncmp (command, c->name, len) | |
c5aa993b | 720 | && (!ignore_help_classes || c->function.cfunc)) |
c906108c | 721 | { |
c5aa993b JM |
722 | found = c; |
723 | (*nfound)++; | |
724 | if (c->name[len] == '\0') | |
725 | { | |
726 | *nfound = 1; | |
727 | break; | |
728 | } | |
c906108c SS |
729 | } |
730 | return found; | |
731 | } | |
732 | ||
733 | /* This routine takes a line of TEXT and a CLIST in which to start the | |
734 | lookup. When it returns it will have incremented the text pointer past | |
735 | the section of text it matched, set *RESULT_LIST to point to the list in | |
736 | which the last word was matched, and will return a pointer to the cmd | |
737 | list element which the text matches. It will return NULL if no match at | |
738 | all was possible. It will return -1 (cast appropriately, ick) if ambigous | |
739 | matches are possible; in this case *RESULT_LIST will be set to point to | |
740 | the list in which there are ambiguous choices (and *TEXT will be set to | |
741 | the ambiguous text string). | |
742 | ||
743 | If the located command was an abbreviation, this routine returns the base | |
744 | command of the abbreviation. | |
745 | ||
746 | It does no error reporting whatsoever; control will always return | |
747 | to the superior routine. | |
748 | ||
749 | In the case of an ambiguous return (-1), *RESULT_LIST will be set to point | |
750 | at the prefix_command (ie. the best match) *or* (special case) will be NULL | |
751 | if no prefix command was ever found. For example, in the case of "info a", | |
752 | "info" matches without ambiguity, but "a" could be "args" or "address", so | |
753 | *RESULT_LIST is set to the cmd_list_element for "info". So in this case | |
754 | RESULT_LIST should not be interpeted as a pointer to the beginning of a | |
755 | list; it simply points to a specific command. In the case of an ambiguous | |
756 | return *TEXT is advanced past the last non-ambiguous prefix (e.g. | |
757 | "info t" can be "info types" or "info target"; upon return *TEXT has been | |
758 | advanced past "info "). | |
759 | ||
760 | If RESULT_LIST is NULL, don't set *RESULT_LIST (but don't otherwise | |
761 | affect the operation). | |
762 | ||
763 | This routine does *not* modify the text pointed to by TEXT. | |
c5aa993b | 764 | |
c906108c SS |
765 | If IGNORE_HELP_CLASSES is nonzero, ignore any command list elements which |
766 | are actually help classes rather than commands (i.e. the function field of | |
767 | the struct cmd_list_element is NULL). */ | |
768 | ||
769 | struct cmd_list_element * | |
fba45db2 KB |
770 | lookup_cmd_1 (char **text, struct cmd_list_element *clist, |
771 | struct cmd_list_element **result_list, int ignore_help_classes) | |
c906108c SS |
772 | { |
773 | char *p, *command; | |
774 | int len, tmp, nfound; | |
775 | struct cmd_list_element *found, *c; | |
56382845 | 776 | char *line = *text; |
c906108c SS |
777 | |
778 | while (**text == ' ' || **text == '\t') | |
779 | (*text)++; | |
780 | ||
781 | /* Treating underscores as part of command words is important | |
782 | so that "set args_foo()" doesn't get interpreted as | |
783 | "set args _foo()". */ | |
784 | for (p = *text; | |
c5aa993b | 785 | *p && (isalnum (*p) || *p == '-' || *p == '_' || |
c906108c SS |
786 | (tui_version && |
787 | (*p == '+' || *p == '<' || *p == '>' || *p == '$')) || | |
788 | (xdb_commands && (*p == '!' || *p == '/' || *p == '?'))); | |
789 | p++) | |
790 | ; | |
791 | ||
792 | /* If nothing but whitespace, return 0. */ | |
793 | if (p == *text) | |
794 | return 0; | |
c5aa993b | 795 | |
c906108c SS |
796 | len = p - *text; |
797 | ||
798 | /* *text and p now bracket the first command word to lookup (and | |
799 | it's length is len). We copy this into a local temporary */ | |
800 | ||
801 | ||
802 | command = (char *) alloca (len + 1); | |
803 | for (tmp = 0; tmp < len; tmp++) | |
804 | { | |
805 | char x = (*text)[tmp]; | |
806 | command[tmp] = x; | |
807 | } | |
808 | command[len] = '\0'; | |
809 | ||
810 | /* Look it up. */ | |
811 | found = 0; | |
812 | nfound = 0; | |
c5aa993b | 813 | found = find_cmd (command, len, clist, ignore_help_classes, &nfound); |
c906108c SS |
814 | |
815 | /* | |
c5aa993b JM |
816 | ** We didn't find the command in the entered case, so lower case it |
817 | ** and search again. | |
818 | */ | |
c906108c SS |
819 | if (!found || nfound == 0) |
820 | { | |
821 | for (tmp = 0; tmp < len; tmp++) | |
c5aa993b JM |
822 | { |
823 | char x = command[tmp]; | |
824 | command[tmp] = isupper (x) ? tolower (x) : x; | |
825 | } | |
826 | found = find_cmd (command, len, clist, ignore_help_classes, &nfound); | |
c906108c SS |
827 | } |
828 | ||
829 | /* If nothing matches, we have a simple failure. */ | |
830 | if (nfound == 0) | |
831 | return 0; | |
832 | ||
833 | if (nfound > 1) | |
834 | { | |
835 | if (result_list != NULL) | |
836 | /* Will be modified in calling routine | |
837 | if we know what the prefix command is. */ | |
c5aa993b JM |
838 | *result_list = 0; |
839 | return (struct cmd_list_element *) -1; /* Ambiguous. */ | |
c906108c SS |
840 | } |
841 | ||
842 | /* We've matched something on this list. Move text pointer forward. */ | |
843 | ||
844 | *text = p; | |
845 | ||
c906108c | 846 | if (found->cmd_pointer) |
56382845 FN |
847 | { |
848 | /* We drop the alias (abbreviation) in favor of the command it is | |
849 | pointing to. If the alias is deprecated, though, we need to | |
850 | warn the user about it before we drop it. Note that while we | |
851 | are warning about the alias, we may also warn about the command | |
852 | itself and we will adjust the appropriate DEPRECATED_WARN_USER | |
853 | flags */ | |
854 | ||
855 | if (found->flags & DEPRECATED_WARN_USER) | |
856 | deprecated_cmd_warning (&line); | |
857 | found = found->cmd_pointer; | |
858 | } | |
c906108c SS |
859 | /* If we found a prefix command, keep looking. */ |
860 | ||
861 | if (found->prefixlist) | |
862 | { | |
863 | c = lookup_cmd_1 (text, *found->prefixlist, result_list, | |
864 | ignore_help_classes); | |
865 | if (!c) | |
866 | { | |
867 | /* Didn't find anything; this is as far as we got. */ | |
868 | if (result_list != NULL) | |
869 | *result_list = clist; | |
870 | return found; | |
871 | } | |
872 | else if (c == (struct cmd_list_element *) -1) | |
873 | { | |
874 | /* We've gotten this far properly, but the next step | |
875 | is ambiguous. We need to set the result list to the best | |
876 | we've found (if an inferior hasn't already set it). */ | |
877 | if (result_list != NULL) | |
878 | if (!*result_list) | |
879 | /* This used to say *result_list = *found->prefixlist | |
c5aa993b JM |
880 | If that was correct, need to modify the documentation |
881 | at the top of this function to clarify what is supposed | |
882 | to be going on. */ | |
c906108c SS |
883 | *result_list = found; |
884 | return c; | |
885 | } | |
886 | else | |
887 | { | |
888 | /* We matched! */ | |
889 | return c; | |
890 | } | |
891 | } | |
892 | else | |
893 | { | |
894 | if (result_list != NULL) | |
895 | *result_list = clist; | |
896 | return found; | |
897 | } | |
898 | } | |
899 | ||
900 | /* All this hair to move the space to the front of cmdtype */ | |
901 | ||
902 | static void | |
fba45db2 | 903 | undef_cmd_error (char *cmdtype, char *q) |
c906108c SS |
904 | { |
905 | error ("Undefined %scommand: \"%s\". Try \"help%s%.*s\".", | |
c5aa993b JM |
906 | cmdtype, |
907 | q, | |
908 | *cmdtype ? " " : "", | |
909 | strlen (cmdtype) - 1, | |
910 | cmdtype); | |
c906108c SS |
911 | } |
912 | ||
913 | /* Look up the contents of *LINE as a command in the command list LIST. | |
914 | LIST is a chain of struct cmd_list_element's. | |
915 | If it is found, return the struct cmd_list_element for that command | |
916 | and update *LINE to point after the command name, at the first argument. | |
917 | If not found, call error if ALLOW_UNKNOWN is zero | |
918 | otherwise (or if error returns) return zero. | |
919 | Call error if specified command is ambiguous, | |
920 | unless ALLOW_UNKNOWN is negative. | |
921 | CMDTYPE precedes the word "command" in the error message. | |
922 | ||
923 | If INGNORE_HELP_CLASSES is nonzero, ignore any command list | |
924 | elements which are actually help classes rather than commands (i.e. | |
925 | the function field of the struct cmd_list_element is 0). */ | |
926 | ||
927 | struct cmd_list_element * | |
fba45db2 KB |
928 | lookup_cmd (char **line, struct cmd_list_element *list, char *cmdtype, |
929 | int allow_unknown, int ignore_help_classes) | |
c906108c SS |
930 | { |
931 | struct cmd_list_element *last_list = 0; | |
932 | struct cmd_list_element *c = | |
c5aa993b | 933 | lookup_cmd_1 (line, list, &last_list, ignore_help_classes); |
c906108c SS |
934 | #if 0 |
935 | /* This is wrong for complete_command. */ | |
936 | char *ptr = (*line) + strlen (*line) - 1; | |
937 | ||
938 | /* Clear off trailing whitespace. */ | |
939 | while (ptr >= *line && (*ptr == ' ' || *ptr == '\t')) | |
940 | ptr--; | |
941 | *(ptr + 1) = '\0'; | |
942 | #endif | |
c5aa993b | 943 | |
c906108c SS |
944 | if (!c) |
945 | { | |
946 | if (!allow_unknown) | |
947 | { | |
948 | if (!*line) | |
949 | error ("Lack of needed %scommand", cmdtype); | |
950 | else | |
951 | { | |
952 | char *p = *line, *q; | |
953 | ||
c5aa993b | 954 | while (isalnum (*p) || *p == '-') |
c906108c SS |
955 | p++; |
956 | ||
957 | q = (char *) alloca (p - *line + 1); | |
958 | strncpy (q, *line, p - *line); | |
959 | q[p - *line] = '\0'; | |
960 | undef_cmd_error (cmdtype, q); | |
961 | } | |
962 | } | |
963 | else | |
964 | return 0; | |
965 | } | |
966 | else if (c == (struct cmd_list_element *) -1) | |
967 | { | |
968 | /* Ambigous. Local values should be off prefixlist or called | |
c5aa993b | 969 | values. */ |
c906108c SS |
970 | int local_allow_unknown = (last_list ? last_list->allow_unknown : |
971 | allow_unknown); | |
972 | char *local_cmdtype = last_list ? last_list->prefixname : cmdtype; | |
973 | struct cmd_list_element *local_list = | |
c5aa993b JM |
974 | (last_list ? *(last_list->prefixlist) : list); |
975 | ||
c906108c SS |
976 | if (local_allow_unknown < 0) |
977 | { | |
978 | if (last_list) | |
979 | return last_list; /* Found something. */ | |
980 | else | |
981 | return 0; /* Found nothing. */ | |
982 | } | |
983 | else | |
984 | { | |
985 | /* Report as error. */ | |
986 | int amb_len; | |
987 | char ambbuf[100]; | |
988 | ||
989 | for (amb_len = 0; | |
990 | ((*line)[amb_len] && (*line)[amb_len] != ' ' | |
991 | && (*line)[amb_len] != '\t'); | |
992 | amb_len++) | |
993 | ; | |
c5aa993b | 994 | |
c906108c SS |
995 | ambbuf[0] = 0; |
996 | for (c = local_list; c; c = c->next) | |
997 | if (!strncmp (*line, c->name, amb_len)) | |
998 | { | |
c5aa993b | 999 | if (strlen (ambbuf) + strlen (c->name) + 6 < (int) sizeof ambbuf) |
c906108c SS |
1000 | { |
1001 | if (strlen (ambbuf)) | |
1002 | strcat (ambbuf, ", "); | |
1003 | strcat (ambbuf, c->name); | |
1004 | } | |
1005 | else | |
1006 | { | |
1007 | strcat (ambbuf, ".."); | |
1008 | break; | |
1009 | } | |
1010 | } | |
1011 | error ("Ambiguous %scommand \"%s\": %s.", local_cmdtype, | |
1012 | *line, ambbuf); | |
1013 | return 0; /* lint */ | |
1014 | } | |
1015 | } | |
1016 | else | |
1017 | { | |
1018 | /* We've got something. It may still not be what the caller | |
1019 | wants (if this command *needs* a subcommand). */ | |
1020 | while (**line == ' ' || **line == '\t') | |
1021 | (*line)++; | |
1022 | ||
1023 | if (c->prefixlist && **line && !c->allow_unknown) | |
1024 | undef_cmd_error (c->prefixname, *line); | |
1025 | ||
1026 | /* Seems to be what he wants. Return it. */ | |
1027 | return c; | |
1028 | } | |
1029 | return 0; | |
1030 | } | |
c5aa993b | 1031 | |
56382845 FN |
1032 | /* We are here presumably because an alias or command in *TEXT is |
1033 | deprecated and a warning message should be generated. This function | |
1034 | decodes *TEXT and potentially generates a warning message as outlined | |
1035 | below. | |
1036 | ||
1037 | Example for 'set endian big' which has a fictitious alias 'seb'. | |
1038 | ||
1039 | If alias wasn't used in *TEXT, and the command is deprecated: | |
1040 | "warning: 'set endian big' is deprecated." | |
1041 | ||
1042 | If alias was used, and only the alias is deprecated: | |
1043 | "warning: 'seb' an alias for the command 'set endian big' is deprecated." | |
1044 | ||
1045 | If alias was used and command is deprecated (regardless of whether the | |
1046 | alias itself is deprecated: | |
1047 | ||
1048 | "warning: 'set endian big' (seb) is deprecated." | |
1049 | ||
1050 | After the message has been sent, clear the appropriate flags in the | |
1051 | command and/or the alias so the user is no longer bothered. | |
1052 | ||
1053 | */ | |
1054 | void | |
1055 | deprecated_cmd_warning (char **text) | |
1056 | { | |
1057 | struct cmd_list_element *alias = NULL; | |
1058 | struct cmd_list_element *prefix_cmd = NULL; | |
1059 | struct cmd_list_element *cmd = NULL; | |
1060 | struct cmd_list_element *c; | |
1061 | char *type; | |
1062 | ||
1063 | if (!lookup_cmd_composition (*text, &alias, &prefix_cmd, &cmd)) | |
1064 | /* return if text doesn't evaluate to a command */ | |
1065 | return; | |
1066 | ||
1067 | if (!((alias ? (alias->flags & DEPRECATED_WARN_USER) : 0) | |
1068 | || (cmd->flags & DEPRECATED_WARN_USER) ) ) | |
1069 | /* return if nothing is deprecated */ | |
1070 | return; | |
1071 | ||
1072 | printf_filtered ("Warning:"); | |
1073 | ||
1074 | if (alias && !(cmd->flags & CMD_DEPRECATED)) | |
1075 | printf_filtered (" '%s', an alias for the", alias->name); | |
1076 | ||
1077 | printf_filtered (" command '"); | |
1078 | ||
1079 | if (prefix_cmd) | |
1080 | printf_filtered ("%s", prefix_cmd->prefixname); | |
1081 | ||
1082 | printf_filtered ("%s", cmd->name); | |
1083 | ||
1084 | if (alias && (cmd->flags & CMD_DEPRECATED)) | |
1085 | printf_filtered ("' (%s) is deprecated.\n", alias->name); | |
1086 | else | |
1087 | printf_filtered ("' is deprecated.\n"); | |
1088 | ||
1089 | ||
1090 | /* if it is only the alias that is deprecated, we want to indicate the | |
1091 | new alias, otherwise we'll indicate the new command */ | |
1092 | ||
1093 | if (alias && !(cmd->flags & CMD_DEPRECATED)) | |
1094 | { | |
1095 | if (alias->replacement) | |
1096 | printf_filtered ("Use '%s'.\n\n", alias->replacement); | |
1097 | else | |
1098 | printf_filtered ("No alternative known.\n\n"); | |
1099 | } | |
1100 | else | |
1101 | { | |
1102 | if (cmd->replacement) | |
1103 | printf_filtered ("Use '%s'.\n\n", cmd->replacement); | |
1104 | else | |
1105 | printf_filtered ("No alternative known.\n\n"); | |
1106 | } | |
1107 | ||
1108 | /* We've warned you, now we'll keep quiet */ | |
1109 | if (alias) | |
1110 | alias->flags &= ~DEPRECATED_WARN_USER; | |
1111 | ||
1112 | cmd->flags &= ~DEPRECATED_WARN_USER; | |
1113 | } | |
1114 | ||
1115 | ||
1116 | ||
1117 | /* Look up the contents of LINE as a command in the command list 'cmdlist'. | |
1118 | Return 1 on success, 0 on failure. | |
1119 | ||
1120 | If LINE refers to an alias, *alias will point to that alias. | |
1121 | ||
1122 | If LINE is a postfix command (i.e. one that is preceeded by a prefix | |
1123 | command) set *prefix_cmd. | |
1124 | ||
1125 | Set *cmd to point to the command LINE indicates. | |
1126 | ||
1127 | If any of *alias, *prefix_cmd, or *cmd cannot be determined or do not | |
1128 | exist, they are NULL when we return. | |
1129 | ||
1130 | */ | |
1131 | int | |
1132 | lookup_cmd_composition (char *text, | |
1133 | struct cmd_list_element **alias, | |
1134 | struct cmd_list_element **prefix_cmd, | |
1135 | struct cmd_list_element **cmd) | |
1136 | { | |
1137 | char *p, *command; | |
1138 | int len, tmp, nfound; | |
1139 | struct cmd_list_element *cur_list; | |
1140 | struct cmd_list_element *prev_cmd; | |
1141 | *alias = NULL; | |
1142 | *prefix_cmd = NULL; | |
1143 | *cmd = NULL; | |
1144 | ||
1145 | cur_list = cmdlist; | |
1146 | ||
1147 | while (1) | |
1148 | { | |
1149 | /* Go through as many command lists as we need to | |
1150 | to find the command TEXT refers to. */ | |
1151 | ||
1152 | prev_cmd = *cmd; | |
1153 | ||
1154 | while (*text == ' ' || *text == '\t') | |
1155 | (text)++; | |
1156 | ||
1157 | /* Treating underscores as part of command words is important | |
1158 | so that "set args_foo()" doesn't get interpreted as | |
1159 | "set args _foo()". */ | |
1160 | for (p = text; | |
1161 | *p && (isalnum (*p) || *p == '-' || *p == '_' || | |
1162 | (tui_version && | |
1163 | (*p == '+' || *p == '<' || *p == '>' || *p == '$')) || | |
1164 | (xdb_commands && (*p == '!' || *p == '/' || *p == '?'))); | |
1165 | p++) | |
1166 | ; | |
1167 | ||
1168 | /* If nothing but whitespace, return. */ | |
1169 | if (p == text) | |
1170 | return 0; | |
1171 | ||
1172 | len = p - text; | |
1173 | ||
1174 | /* text and p now bracket the first command word to lookup (and | |
1175 | it's length is len). We copy this into a local temporary */ | |
1176 | ||
1177 | command = (char *) alloca (len + 1); | |
1178 | for (tmp = 0; tmp < len; tmp++) | |
1179 | { | |
1180 | char x = text[tmp]; | |
1181 | command[tmp] = x; | |
1182 | } | |
1183 | command[len] = '\0'; | |
1184 | ||
1185 | /* Look it up. */ | |
1186 | *cmd = 0; | |
1187 | nfound = 0; | |
1188 | *cmd = find_cmd (command, len, cur_list, 1, &nfound); | |
1189 | ||
1190 | /* We didn't find the command in the entered case, so lower case it | |
1191 | and search again. | |
1192 | */ | |
1193 | if (!*cmd || nfound == 0) | |
1194 | { | |
1195 | for (tmp = 0; tmp < len; tmp++) | |
1196 | { | |
1197 | char x = command[tmp]; | |
1198 | command[tmp] = isupper (x) ? tolower (x) : x; | |
1199 | } | |
1200 | *cmd = find_cmd (command, len, cur_list, 1, &nfound); | |
1201 | } | |
1202 | ||
1203 | if (*cmd == (struct cmd_list_element *) -1) | |
1204 | { | |
1205 | return 0; /* ambiguous */ | |
1206 | } | |
1207 | ||
1208 | if (*cmd == NULL) | |
1209 | return 0; /* nothing found */ | |
1210 | else | |
1211 | { | |
1212 | if ((*cmd)->cmd_pointer) | |
1213 | { | |
1214 | /* cmd was actually an alias, we note that an alias was used | |
1215 | (by assigning *alais) and we set *cmd. | |
1216 | */ | |
1217 | *alias = *cmd; | |
1218 | *cmd = (*cmd)->cmd_pointer; | |
1219 | } | |
1220 | *prefix_cmd = prev_cmd; | |
1221 | } | |
1222 | if ((*cmd)->prefixlist) | |
1223 | cur_list = *(*cmd)->prefixlist; | |
1224 | else | |
1225 | return 1; | |
1226 | ||
1227 | text = p; | |
1228 | } | |
1229 | } | |
1230 | ||
1231 | ||
1232 | ||
1233 | ||
c906108c SS |
1234 | #if 0 |
1235 | /* Look up the contents of *LINE as a command in the command list LIST. | |
1236 | LIST is a chain of struct cmd_list_element's. | |
1237 | If it is found, return the struct cmd_list_element for that command | |
1238 | and update *LINE to point after the command name, at the first argument. | |
1239 | If not found, call error if ALLOW_UNKNOWN is zero | |
1240 | otherwise (or if error returns) return zero. | |
1241 | Call error if specified command is ambiguous, | |
1242 | unless ALLOW_UNKNOWN is negative. | |
1243 | CMDTYPE precedes the word "command" in the error message. */ | |
1244 | ||
1245 | struct cmd_list_element * | |
fba45db2 KB |
1246 | lookup_cmd (char **line, struct cmd_list_element *list, char *cmdtype, |
1247 | int allow_unknown) | |
c906108c SS |
1248 | { |
1249 | register char *p; | |
1250 | register struct cmd_list_element *c, *found; | |
1251 | int nfound; | |
1252 | char ambbuf[100]; | |
1253 | char *processed_cmd; | |
1254 | int i, cmd_len; | |
1255 | ||
1256 | /* Skip leading whitespace. */ | |
1257 | ||
1258 | while (**line == ' ' || **line == '\t') | |
1259 | (*line)++; | |
1260 | ||
1261 | /* Clear out trailing whitespace. */ | |
1262 | ||
1263 | p = *line + strlen (*line); | |
1264 | while (p != *line && (p[-1] == ' ' || p[-1] == '\t')) | |
1265 | p--; | |
1266 | *p = 0; | |
1267 | ||
1268 | /* Find end of command name. */ | |
1269 | ||
1270 | p = *line; | |
c5aa993b | 1271 | while (*p == '-' || isalnum (*p)) |
c906108c SS |
1272 | p++; |
1273 | ||
1274 | /* Look up the command name. | |
1275 | If exact match, keep that. | |
1276 | Otherwise, take command abbreviated, if unique. Note that (in my | |
1277 | opinion) a null string does *not* indicate ambiguity; simply the | |
1278 | end of the argument. */ | |
1279 | ||
1280 | if (p == *line) | |
1281 | { | |
1282 | if (!allow_unknown) | |
1283 | error ("Lack of needed %scommand", cmdtype); | |
1284 | return 0; | |
1285 | } | |
c5aa993b | 1286 | |
c906108c SS |
1287 | /* Copy over to a local buffer, converting to lowercase on the way. |
1288 | This is in case the command being parsed is a subcommand which | |
1289 | doesn't match anything, and that's ok. We want the original | |
1290 | untouched for the routine of the original command. */ | |
c5aa993b | 1291 | |
c906108c SS |
1292 | processed_cmd = (char *) alloca (p - *line + 1); |
1293 | for (cmd_len = 0; cmd_len < p - *line; cmd_len++) | |
1294 | { | |
1295 | char x = (*line)[cmd_len]; | |
c5aa993b JM |
1296 | if (isupper (x)) |
1297 | processed_cmd[cmd_len] = tolower (x); | |
c906108c SS |
1298 | else |
1299 | processed_cmd[cmd_len] = x; | |
1300 | } | |
1301 | processed_cmd[cmd_len] = '\0'; | |
1302 | ||
1303 | /* Check all possibilities in the current command list. */ | |
1304 | found = 0; | |
1305 | nfound = 0; | |
1306 | for (c = list; c; c = c->next) | |
1307 | { | |
1308 | if (!strncmp (processed_cmd, c->name, cmd_len)) | |
1309 | { | |
1310 | found = c; | |
1311 | nfound++; | |
1312 | if (c->name[cmd_len] == 0) | |
1313 | { | |
1314 | nfound = 1; | |
1315 | break; | |
1316 | } | |
1317 | } | |
1318 | } | |
1319 | ||
1320 | /* Report error for undefined command name. */ | |
1321 | ||
1322 | if (nfound != 1) | |
1323 | { | |
1324 | if (nfound > 1 && allow_unknown >= 0) | |
1325 | { | |
1326 | ambbuf[0] = 0; | |
1327 | for (c = list; c; c = c->next) | |
1328 | if (!strncmp (processed_cmd, c->name, cmd_len)) | |
1329 | { | |
1330 | if (strlen (ambbuf) + strlen (c->name) + 6 < sizeof ambbuf) | |
1331 | { | |
1332 | if (strlen (ambbuf)) | |
1333 | strcat (ambbuf, ", "); | |
1334 | strcat (ambbuf, c->name); | |
1335 | } | |
1336 | else | |
1337 | { | |
1338 | strcat (ambbuf, ".."); | |
1339 | break; | |
1340 | } | |
1341 | } | |
1342 | error ("Ambiguous %scommand \"%s\": %s.", cmdtype, | |
1343 | processed_cmd, ambbuf); | |
1344 | } | |
1345 | else if (!allow_unknown) | |
1346 | error ("Undefined %scommand: \"%s\".", cmdtype, processed_cmd); | |
1347 | return 0; | |
1348 | } | |
1349 | ||
1350 | /* Skip whitespace before the argument. */ | |
1351 | ||
c5aa993b JM |
1352 | while (*p == ' ' || *p == '\t') |
1353 | p++; | |
c906108c SS |
1354 | *line = p; |
1355 | ||
1356 | if (found->prefixlist && *p) | |
1357 | { | |
1358 | c = lookup_cmd (line, *found->prefixlist, found->prefixname, | |
1359 | found->allow_unknown); | |
1360 | if (c) | |
1361 | return c; | |
1362 | } | |
1363 | ||
1364 | return found; | |
1365 | } | |
1366 | #endif | |
1367 | ||
1368 | /* Helper function for SYMBOL_COMPLETION_FUNCTION. */ | |
1369 | ||
1370 | /* Return a vector of char pointers which point to the different | |
1371 | possible completions in LIST of TEXT. | |
1372 | ||
1373 | WORD points in the same buffer as TEXT, and completions should be | |
1374 | returned relative to this position. For example, suppose TEXT is "foo" | |
1375 | and we want to complete to "foobar". If WORD is "oo", return | |
1376 | "oobar"; if WORD is "baz/foo", return "baz/foobar". */ | |
1377 | ||
1378 | char ** | |
fba45db2 | 1379 | complete_on_cmdlist (struct cmd_list_element *list, char *text, char *word) |
c906108c SS |
1380 | { |
1381 | struct cmd_list_element *ptr; | |
1382 | char **matchlist; | |
1383 | int sizeof_matchlist; | |
1384 | int matches; | |
1385 | int textlen = strlen (text); | |
1386 | ||
1387 | sizeof_matchlist = 10; | |
1388 | matchlist = (char **) xmalloc (sizeof_matchlist * sizeof (char *)); | |
1389 | matches = 0; | |
1390 | ||
1391 | for (ptr = list; ptr; ptr = ptr->next) | |
1392 | if (!strncmp (ptr->name, text, textlen) | |
1393 | && !ptr->abbrev_flag | |
1394 | && (ptr->function.cfunc | |
1395 | || ptr->prefixlist)) | |
1396 | { | |
1397 | if (matches == sizeof_matchlist) | |
1398 | { | |
1399 | sizeof_matchlist *= 2; | |
c5aa993b | 1400 | matchlist = (char **) xrealloc ((char *) matchlist, |
c906108c SS |
1401 | (sizeof_matchlist |
1402 | * sizeof (char *))); | |
1403 | } | |
1404 | ||
c5aa993b | 1405 | matchlist[matches] = (char *) |
c906108c SS |
1406 | xmalloc (strlen (word) + strlen (ptr->name) + 1); |
1407 | if (word == text) | |
1408 | strcpy (matchlist[matches], ptr->name); | |
1409 | else if (word > text) | |
1410 | { | |
1411 | /* Return some portion of ptr->name. */ | |
1412 | strcpy (matchlist[matches], ptr->name + (word - text)); | |
1413 | } | |
1414 | else | |
1415 | { | |
1416 | /* Return some of text plus ptr->name. */ | |
1417 | strncpy (matchlist[matches], word, text - word); | |
1418 | matchlist[matches][text - word] = '\0'; | |
1419 | strcat (matchlist[matches], ptr->name); | |
1420 | } | |
1421 | ++matches; | |
1422 | } | |
1423 | ||
1424 | if (matches == 0) | |
1425 | { | |
c5aa993b | 1426 | free ((PTR) matchlist); |
c906108c SS |
1427 | matchlist = 0; |
1428 | } | |
1429 | else | |
1430 | { | |
c5aa993b JM |
1431 | matchlist = (char **) xrealloc ((char *) matchlist, ((matches + 1) |
1432 | * sizeof (char *))); | |
c906108c SS |
1433 | matchlist[matches] = (char *) 0; |
1434 | } | |
1435 | ||
1436 | return matchlist; | |
1437 | } | |
1438 | ||
1439 | /* Helper function for SYMBOL_COMPLETION_FUNCTION. */ | |
1440 | ||
1441 | /* Return a vector of char pointers which point to the different | |
1442 | possible completions in CMD of TEXT. | |
1443 | ||
1444 | WORD points in the same buffer as TEXT, and completions should be | |
1445 | returned relative to this position. For example, suppose TEXT is "foo" | |
1446 | and we want to complete to "foobar". If WORD is "oo", return | |
1447 | "oobar"; if WORD is "baz/foo", return "baz/foobar". */ | |
1448 | ||
1449 | char ** | |
53904c9e AC |
1450 | complete_on_enum (const char *enumlist[], |
1451 | char *text, | |
1452 | char *word) | |
c906108c SS |
1453 | { |
1454 | char **matchlist; | |
1455 | int sizeof_matchlist; | |
1456 | int matches; | |
1457 | int textlen = strlen (text); | |
1458 | int i; | |
53904c9e | 1459 | const char *name; |
c906108c SS |
1460 | |
1461 | sizeof_matchlist = 10; | |
1462 | matchlist = (char **) xmalloc (sizeof_matchlist * sizeof (char *)); | |
1463 | matches = 0; | |
1464 | ||
1465 | for (i = 0; (name = enumlist[i]) != NULL; i++) | |
1466 | if (strncmp (name, text, textlen) == 0) | |
1467 | { | |
1468 | if (matches == sizeof_matchlist) | |
1469 | { | |
1470 | sizeof_matchlist *= 2; | |
c5aa993b | 1471 | matchlist = (char **) xrealloc ((char *) matchlist, |
c906108c SS |
1472 | (sizeof_matchlist |
1473 | * sizeof (char *))); | |
1474 | } | |
1475 | ||
c5aa993b | 1476 | matchlist[matches] = (char *) |
c906108c SS |
1477 | xmalloc (strlen (word) + strlen (name) + 1); |
1478 | if (word == text) | |
1479 | strcpy (matchlist[matches], name); | |
1480 | else if (word > text) | |
1481 | { | |
1482 | /* Return some portion of name. */ | |
1483 | strcpy (matchlist[matches], name + (word - text)); | |
1484 | } | |
1485 | else | |
1486 | { | |
1487 | /* Return some of text plus name. */ | |
1488 | strncpy (matchlist[matches], word, text - word); | |
1489 | matchlist[matches][text - word] = '\0'; | |
1490 | strcat (matchlist[matches], name); | |
1491 | } | |
1492 | ++matches; | |
1493 | } | |
1494 | ||
1495 | if (matches == 0) | |
1496 | { | |
c5aa993b | 1497 | free ((PTR) matchlist); |
c906108c SS |
1498 | matchlist = 0; |
1499 | } | |
1500 | else | |
1501 | { | |
c5aa993b JM |
1502 | matchlist = (char **) xrealloc ((char *) matchlist, ((matches + 1) |
1503 | * sizeof (char *))); | |
c906108c SS |
1504 | matchlist[matches] = (char *) 0; |
1505 | } | |
1506 | ||
1507 | return matchlist; | |
1508 | } | |
1509 | ||
97c3646f AC |
1510 | static enum cmd_auto_boolean |
1511 | parse_auto_binary_operation (const char *arg) | |
1512 | { | |
1513 | if (arg != NULL && *arg != '\0') | |
1514 | { | |
1515 | int length = strlen (arg); | |
1516 | while (isspace (arg[length - 1]) && length > 0) | |
1517 | length--; | |
1518 | if (strncmp (arg, "on", length) == 0 | |
1519 | || strncmp (arg, "1", length) == 0 | |
1520 | || strncmp (arg, "yes", length) == 0 | |
1521 | || strncmp (arg, "enable", length) == 0) | |
1522 | return CMD_AUTO_BOOLEAN_TRUE; | |
1523 | else if (strncmp (arg, "off", length) == 0 | |
1524 | || strncmp (arg, "0", length) == 0 | |
1525 | || strncmp (arg, "no", length) == 0 | |
1526 | || strncmp (arg, "disable", length) == 0) | |
1527 | return CMD_AUTO_BOOLEAN_FALSE; | |
1528 | else if (strncmp (arg, "auto", length) == 0 | |
1529 | || (strncmp (arg, "-1", length) == 0 && length > 1)) | |
1530 | return CMD_AUTO_BOOLEAN_AUTO; | |
1531 | } | |
1532 | error ("\"on\", \"off\" or \"auto\" expected."); | |
1533 | return CMD_AUTO_BOOLEAN_AUTO; /* pacify GCC */ | |
1534 | } | |
1535 | ||
c906108c | 1536 | static int |
fba45db2 | 1537 | parse_binary_operation (char *arg) |
c906108c SS |
1538 | { |
1539 | int length; | |
1540 | ||
1541 | if (!arg || !*arg) | |
1542 | return 1; | |
1543 | ||
1544 | length = strlen (arg); | |
1545 | ||
1546 | while (arg[length - 1] == ' ' || arg[length - 1] == '\t') | |
1547 | length--; | |
1548 | ||
97c3646f AC |
1549 | if (strncmp (arg, "on", length) == 0 |
1550 | || strncmp (arg, "1", length) == 0 | |
1551 | || strncmp (arg, "yes", length) == 0 | |
1552 | || strncmp (arg, "enable", length) == 0) | |
c906108c | 1553 | return 1; |
97c3646f AC |
1554 | else if (strncmp (arg, "off", length) == 0 |
1555 | || strncmp (arg, "0", length) == 0 | |
1556 | || strncmp (arg, "no", length) == 0 | |
1557 | || strncmp (arg, "disable", length) == 0) | |
c5aa993b | 1558 | return 0; |
c906108c | 1559 | else |
c5aa993b JM |
1560 | { |
1561 | error ("\"on\" or \"off\" expected."); | |
c906108c | 1562 | return 0; |
c5aa993b | 1563 | } |
c906108c SS |
1564 | } |
1565 | ||
1566 | /* Do a "set" or "show" command. ARG is NULL if no argument, or the text | |
1567 | of the argument, and FROM_TTY is nonzero if this command is being entered | |
1568 | directly by the user (i.e. these are just like any other | |
1569 | command). C is the command list element for the command. */ | |
1570 | void | |
fba45db2 | 1571 | do_setshow_command (char *arg, int from_tty, struct cmd_list_element *c) |
c906108c SS |
1572 | { |
1573 | if (c->type == set_cmd) | |
1574 | { | |
1575 | switch (c->var_type) | |
1576 | { | |
1577 | case var_string: | |
1578 | { | |
1579 | char *new; | |
1580 | char *p; | |
1581 | char *q; | |
1582 | int ch; | |
c5aa993b | 1583 | |
c906108c SS |
1584 | if (arg == NULL) |
1585 | arg = ""; | |
1586 | new = (char *) xmalloc (strlen (arg) + 2); | |
c5aa993b JM |
1587 | p = arg; |
1588 | q = new; | |
c906108c SS |
1589 | while ((ch = *p++) != '\000') |
1590 | { | |
1591 | if (ch == '\\') | |
1592 | { | |
1593 | /* \ at end of argument is used after spaces | |
1594 | so they won't be lost. */ | |
1595 | /* This is obsolete now that we no longer strip | |
1596 | trailing whitespace and actually, the backslash | |
1597 | didn't get here in my test, readline or | |
1598 | something did something funky with a backslash | |
1599 | right before a newline. */ | |
1600 | if (*p == 0) | |
1601 | break; | |
1602 | ch = parse_escape (&p); | |
1603 | if (ch == 0) | |
c5aa993b | 1604 | break; /* C loses */ |
c906108c SS |
1605 | else if (ch > 0) |
1606 | *q++ = ch; | |
1607 | } | |
1608 | else | |
1609 | *q++ = ch; | |
1610 | } | |
1611 | #if 0 | |
1612 | if (*(p - 1) != '\\') | |
1613 | *q++ = ' '; | |
1614 | #endif | |
1615 | *q++ = '\0'; | |
1616 | new = (char *) xrealloc (new, q - new); | |
c5aa993b JM |
1617 | if (*(char **) c->var != NULL) |
1618 | free (*(char **) c->var); | |
c906108c SS |
1619 | *(char **) c->var = new; |
1620 | } | |
1621 | break; | |
1622 | case var_string_noescape: | |
1623 | if (arg == NULL) | |
1624 | arg = ""; | |
c5aa993b JM |
1625 | if (*(char **) c->var != NULL) |
1626 | free (*(char **) c->var); | |
c906108c SS |
1627 | *(char **) c->var = savestring (arg, strlen (arg)); |
1628 | break; | |
1629 | case var_filename: | |
1630 | if (arg == NULL) | |
1631 | error_no_arg ("filename to set it to."); | |
c5aa993b JM |
1632 | if (*(char **) c->var != NULL) |
1633 | free (*(char **) c->var); | |
1634 | *(char **) c->var = tilde_expand (arg); | |
c906108c SS |
1635 | break; |
1636 | case var_boolean: | |
1637 | *(int *) c->var = parse_binary_operation (arg); | |
1638 | break; | |
97c3646f AC |
1639 | case var_auto_boolean: |
1640 | *(enum cmd_auto_boolean *) c->var = parse_auto_binary_operation (arg); | |
1641 | break; | |
c906108c SS |
1642 | case var_uinteger: |
1643 | if (arg == NULL) | |
1644 | error_no_arg ("integer to set it to."); | |
1645 | *(unsigned int *) c->var = parse_and_eval_address (arg); | |
1646 | if (*(unsigned int *) c->var == 0) | |
1647 | *(unsigned int *) c->var = UINT_MAX; | |
1648 | break; | |
1649 | case var_integer: | |
1650 | { | |
1651 | unsigned int val; | |
1652 | if (arg == NULL) | |
1653 | error_no_arg ("integer to set it to."); | |
1654 | val = parse_and_eval_address (arg); | |
1655 | if (val == 0) | |
1656 | *(int *) c->var = INT_MAX; | |
1657 | else if (val >= INT_MAX) | |
1658 | error ("integer %u out of range", val); | |
1659 | else | |
1660 | *(int *) c->var = val; | |
1661 | break; | |
1662 | } | |
1663 | case var_zinteger: | |
1664 | if (arg == NULL) | |
1665 | error_no_arg ("integer to set it to."); | |
1666 | *(int *) c->var = parse_and_eval_address (arg); | |
1667 | break; | |
1668 | case var_enum: | |
1669 | { | |
1670 | int i; | |
1671 | int len; | |
1672 | int nmatches; | |
53904c9e | 1673 | const char *match = NULL; |
c906108c SS |
1674 | char *p; |
1675 | ||
1676 | /* if no argument was supplied, print an informative error message */ | |
1677 | if (arg == NULL) | |
1678 | { | |
1679 | char msg[1024]; | |
1680 | strcpy (msg, "Requires an argument. Valid arguments are "); | |
1681 | for (i = 0; c->enums[i]; i++) | |
1682 | { | |
1683 | if (i != 0) | |
1684 | strcat (msg, ", "); | |
1685 | strcat (msg, c->enums[i]); | |
1686 | } | |
1687 | strcat (msg, "."); | |
1688 | error (msg); | |
1689 | } | |
1690 | ||
1691 | p = strchr (arg, ' '); | |
c5aa993b | 1692 | |
c906108c SS |
1693 | if (p) |
1694 | len = p - arg; | |
1695 | else | |
1696 | len = strlen (arg); | |
1697 | ||
1698 | nmatches = 0; | |
1699 | for (i = 0; c->enums[i]; i++) | |
1700 | if (strncmp (arg, c->enums[i], len) == 0) | |
1701 | { | |
aa891095 AC |
1702 | if (c->enums[i][len] == '\0') |
1703 | { | |
1704 | match = c->enums[i]; | |
1705 | nmatches = 1; | |
1706 | break; /* exact match. */ | |
1707 | } | |
1708 | else | |
1709 | { | |
1710 | match = c->enums[i]; | |
1711 | nmatches++; | |
1712 | } | |
c906108c SS |
1713 | } |
1714 | ||
1715 | if (nmatches <= 0) | |
1716 | error ("Undefined item: \"%s\".", arg); | |
1717 | ||
1718 | if (nmatches > 1) | |
1719 | error ("Ambiguous item \"%s\".", arg); | |
1720 | ||
53904c9e | 1721 | *(const char **) c->var = match; |
c906108c SS |
1722 | } |
1723 | break; | |
1724 | default: | |
1725 | error ("gdb internal error: bad var_type in do_setshow_command"); | |
1726 | } | |
1727 | } | |
1728 | else if (c->type == show_cmd) | |
1729 | { | |
8b93c638 JM |
1730 | #ifdef UI_OUT |
1731 | struct cleanup *old_chain; | |
1732 | struct ui_stream *stb; | |
1733 | int quote; | |
1734 | ||
1735 | stb = ui_out_stream_new (uiout); | |
b02eeafb | 1736 | old_chain = make_cleanup_ui_out_stream_delete (stb); |
8b93c638 JM |
1737 | #endif /* UI_OUT */ |
1738 | ||
c906108c SS |
1739 | /* Print doc minus "show" at start. */ |
1740 | print_doc_line (gdb_stdout, c->doc + 5); | |
c5aa993b | 1741 | |
8b93c638 JM |
1742 | #ifdef UI_OUT |
1743 | ui_out_text (uiout, " is "); | |
1744 | ui_out_wrap_hint (uiout, " "); | |
1745 | quote = 0; | |
1746 | switch (c->var_type) | |
1747 | { | |
1748 | case var_string: | |
1749 | { | |
1750 | unsigned char *p; | |
1751 | ||
1752 | if (*(unsigned char **) c->var) | |
1753 | fputstr_filtered (*(unsigned char **) c->var, '"', stb->stream); | |
1754 | quote = 1; | |
1755 | } | |
1756 | break; | |
1757 | case var_string_noescape: | |
1758 | case var_filename: | |
1759 | case var_enum: | |
1760 | if (*(char **) c->var) | |
1761 | fputs_filtered (*(char **) c->var, stb->stream); | |
1762 | quote = 1; | |
1763 | break; | |
1764 | case var_boolean: | |
1765 | fputs_filtered (*(int *) c->var ? "on" : "off", stb->stream); | |
1766 | break; | |
97c3646f | 1767 | case var_auto_boolean: |
d5b61b59 | 1768 | switch (*(enum cmd_auto_boolean*) c->var) |
97c3646f AC |
1769 | { |
1770 | case CMD_AUTO_BOOLEAN_TRUE: | |
1771 | fputs_filtered ("on", stb->stream); | |
1772 | break; | |
1773 | case CMD_AUTO_BOOLEAN_FALSE: | |
1774 | fputs_filtered ("off", stb->stream); | |
1775 | break; | |
1776 | case CMD_AUTO_BOOLEAN_AUTO: | |
1777 | fputs_filtered ("auto", stb->stream); | |
1778 | break; | |
1779 | default: | |
1780 | internal_error ("do_setshow_command: invalid var_auto_boolean"); | |
1781 | break; | |
1782 | } | |
1783 | break; | |
8b93c638 JM |
1784 | case var_uinteger: |
1785 | if (*(unsigned int *) c->var == UINT_MAX) | |
1786 | { | |
1787 | fputs_filtered ("unlimited", stb->stream); | |
1788 | break; | |
1789 | } | |
1790 | /* else fall through */ | |
1791 | case var_zinteger: | |
1792 | fprintf_filtered (stb->stream, "%u", *(unsigned int *) c->var); | |
1793 | break; | |
1794 | case var_integer: | |
1795 | if (*(int *) c->var == INT_MAX) | |
1796 | { | |
1797 | fputs_filtered ("unlimited", stb->stream); | |
1798 | } | |
1799 | else | |
1800 | fprintf_filtered (stb->stream, "%d", *(int *) c->var); | |
1801 | break; | |
1802 | ||
1803 | default: | |
1804 | error ("gdb internal error: bad var_type in do_setshow_command"); | |
1805 | } | |
1806 | if (quote) | |
1807 | ui_out_text (uiout, "\""); | |
1808 | ui_out_field_stream (uiout, "value", stb); | |
1809 | if (quote) | |
1810 | ui_out_text (uiout, "\""); | |
1811 | ui_out_text (uiout, ".\n"); | |
1812 | do_cleanups (old_chain); | |
1813 | #else | |
c906108c SS |
1814 | fputs_filtered (" is ", gdb_stdout); |
1815 | wrap_here (" "); | |
1816 | switch (c->var_type) | |
1817 | { | |
c5aa993b JM |
1818 | case var_string: |
1819 | { | |
c5aa993b JM |
1820 | fputs_filtered ("\"", gdb_stdout); |
1821 | if (*(unsigned char **) c->var) | |
43e526b9 | 1822 | fputstr_filtered (*(unsigned char **) c->var, '"', gdb_stdout); |
c5aa993b JM |
1823 | fputs_filtered ("\"", gdb_stdout); |
1824 | } | |
1825 | break; | |
1826 | case var_string_noescape: | |
1827 | case var_filename: | |
1828 | case var_enum: | |
c906108c | 1829 | fputs_filtered ("\"", gdb_stdout); |
c5aa993b JM |
1830 | if (*(char **) c->var) |
1831 | fputs_filtered (*(char **) c->var, gdb_stdout); | |
c906108c | 1832 | fputs_filtered ("\"", gdb_stdout); |
c906108c | 1833 | break; |
c5aa993b JM |
1834 | case var_boolean: |
1835 | fputs_filtered (*(int *) c->var ? "on" : "off", gdb_stdout); | |
1836 | break; | |
97c3646f AC |
1837 | case var_auto_boolean: |
1838 | switch (*(enum cmd_auto_boolean*) c->var) | |
1839 | { | |
1840 | case CMD_AUTO_BOOLEAN_TRUE: | |
1841 | fputs_filtered ("on", gdb_stdout); | |
1842 | break; | |
1843 | case CMD_AUTO_BOOLEAN_FALSE: | |
1844 | fputs_filtered ("off", gdb_stdout); | |
1845 | break; | |
1846 | case CMD_AUTO_BOOLEAN_AUTO: | |
1847 | fputs_filtered ("auto", gdb_stdout); | |
1848 | break; | |
1849 | default: | |
1850 | internal_error ("do_setshow_command: invalid var_auto_boolean"); | |
1851 | break; | |
1852 | } | |
1853 | break; | |
c5aa993b JM |
1854 | case var_uinteger: |
1855 | if (*(unsigned int *) c->var == UINT_MAX) | |
1856 | { | |
1857 | fputs_filtered ("unlimited", gdb_stdout); | |
1858 | break; | |
1859 | } | |
1860 | /* else fall through */ | |
1861 | case var_zinteger: | |
1862 | fprintf_filtered (gdb_stdout, "%u", *(unsigned int *) c->var); | |
1863 | break; | |
1864 | case var_integer: | |
1865 | if (*(int *) c->var == INT_MAX) | |
1866 | { | |
1867 | fputs_filtered ("unlimited", gdb_stdout); | |
1868 | } | |
1869 | else | |
1870 | fprintf_filtered (gdb_stdout, "%d", *(int *) c->var); | |
1871 | break; | |
1872 | ||
1873 | default: | |
1874 | error ("gdb internal error: bad var_type in do_setshow_command"); | |
c906108c | 1875 | } |
c906108c | 1876 | fputs_filtered (".\n", gdb_stdout); |
8b93c638 | 1877 | #endif |
c906108c SS |
1878 | } |
1879 | else | |
1880 | error ("gdb internal error: bad cmd_type in do_setshow_command"); | |
1881 | (*c->function.sfunc) (NULL, from_tty, c); | |
96baa820 JM |
1882 | if (c->type == set_cmd && set_hook) |
1883 | set_hook (c); | |
c906108c SS |
1884 | } |
1885 | ||
1886 | /* Show all the settings in a list of show commands. */ | |
1887 | ||
1888 | void | |
fba45db2 | 1889 | cmd_show_list (struct cmd_list_element *list, int from_tty, char *prefix) |
c906108c | 1890 | { |
8b93c638 JM |
1891 | #ifdef UI_OUT |
1892 | ui_out_list_begin (uiout, "showlist"); | |
1893 | #endif | |
c5aa993b JM |
1894 | for (; list != NULL; list = list->next) |
1895 | { | |
1896 | /* If we find a prefix, run its list, prefixing our output by its | |
1897 | prefix (with "show " skipped). */ | |
8b93c638 JM |
1898 | #ifdef UI_OUT |
1899 | if (list->prefixlist && !list->abbrev_flag) | |
1900 | { | |
1901 | ui_out_list_begin (uiout, "optionlist"); | |
1902 | ui_out_field_string (uiout, "prefix", list->prefixname + 5); | |
1903 | cmd_show_list (*list->prefixlist, from_tty, list->prefixname + 5); | |
1904 | ui_out_list_end (uiout); | |
1905 | } | |
1906 | if (list->type == show_cmd) | |
1907 | { | |
1908 | ui_out_list_begin (uiout, "option"); | |
1909 | ui_out_text (uiout, prefix); | |
1910 | ui_out_field_string (uiout, "name", list->name); | |
1911 | ui_out_text (uiout, ": "); | |
1912 | do_setshow_command ((char *) NULL, from_tty, list); | |
1913 | ui_out_list_end (uiout); | |
1914 | } | |
1915 | #else | |
c5aa993b JM |
1916 | if (list->prefixlist && !list->abbrev_flag) |
1917 | cmd_show_list (*list->prefixlist, from_tty, list->prefixname + 5); | |
1918 | if (list->type == show_cmd) | |
1919 | { | |
1920 | fputs_filtered (prefix, gdb_stdout); | |
1921 | fputs_filtered (list->name, gdb_stdout); | |
1922 | fputs_filtered (": ", gdb_stdout); | |
1923 | do_setshow_command ((char *) NULL, from_tty, list); | |
1924 | } | |
8b93c638 | 1925 | #endif |
c5aa993b | 1926 | } |
8b93c638 JM |
1927 | #ifdef UI_OUT |
1928 | ui_out_list_end (uiout); | |
1929 | #endif | |
c906108c SS |
1930 | } |
1931 | ||
1932 | /* ARGSUSED */ | |
1933 | static void | |
fba45db2 | 1934 | shell_escape (char *arg, int from_tty) |
c906108c SS |
1935 | { |
1936 | #ifdef CANT_FORK | |
53a5351d JM |
1937 | /* If ARG is NULL, they want an inferior shell, but `system' just |
1938 | reports if the shell is available when passed a NULL arg. */ | |
1939 | int rc = system (arg ? arg : ""); | |
1940 | ||
1941 | if (!arg) | |
1942 | arg = "inferior shell"; | |
1943 | ||
1944 | if (rc == -1) | |
1945 | { | |
1946 | fprintf_unfiltered (gdb_stderr, "Cannot execute %s: %s\n", arg, | |
1947 | safe_strerror (errno)); | |
1948 | gdb_flush (gdb_stderr); | |
1949 | } | |
1950 | else if (rc) | |
1951 | { | |
1952 | fprintf_unfiltered (gdb_stderr, "%s exited with status %d\n", arg, rc); | |
1953 | gdb_flush (gdb_stderr); | |
1954 | } | |
1955 | #ifdef __DJGPP__ | |
1956 | /* Make sure to return to the directory GDB thinks it is, in case the | |
1957 | shell command we just ran changed it. */ | |
1958 | chdir (current_directory); | |
1959 | #endif | |
c906108c SS |
1960 | #else /* Can fork. */ |
1961 | int rc, status, pid; | |
1962 | char *p, *user_shell; | |
1963 | ||
1964 | if ((user_shell = (char *) getenv ("SHELL")) == NULL) | |
1965 | user_shell = "/bin/sh"; | |
1966 | ||
1967 | /* Get the name of the shell for arg0 */ | |
1968 | if ((p = strrchr (user_shell, '/')) == NULL) | |
1969 | p = user_shell; | |
1970 | else | |
1971 | p++; /* Get past '/' */ | |
1972 | ||
c5aa993b | 1973 | if ((pid = fork ()) == 0) |
c906108c SS |
1974 | { |
1975 | if (!arg) | |
1976 | execl (user_shell, p, 0); | |
1977 | else | |
1978 | execl (user_shell, p, "-c", arg, 0); | |
1979 | ||
1980 | fprintf_unfiltered (gdb_stderr, "Cannot execute %s: %s\n", user_shell, | |
1981 | safe_strerror (errno)); | |
1982 | gdb_flush (gdb_stderr); | |
1983 | _exit (0177); | |
1984 | } | |
1985 | ||
1986 | if (pid != -1) | |
1987 | while ((rc = wait (&status)) != pid && rc != -1) | |
1988 | ; | |
1989 | else | |
1990 | error ("Fork failed"); | |
1991 | #endif /* Can fork. */ | |
1992 | } | |
1993 | ||
1994 | static void | |
fba45db2 | 1995 | make_command (char *arg, int from_tty) |
c906108c SS |
1996 | { |
1997 | char *p; | |
1998 | ||
1999 | if (arg == 0) | |
2000 | p = "make"; | |
2001 | else | |
2002 | { | |
c5aa993b | 2003 | p = xmalloc (sizeof ("make ") + strlen (arg)); |
c906108c | 2004 | strcpy (p, "make "); |
c5aa993b | 2005 | strcpy (p + sizeof ("make ") - 1, arg); |
c906108c | 2006 | } |
c5aa993b | 2007 | |
c906108c SS |
2008 | shell_escape (p, from_tty); |
2009 | } | |
2010 | ||
2011 | static void | |
fba45db2 | 2012 | show_user_1 (struct cmd_list_element *c, struct ui_file *stream) |
c906108c SS |
2013 | { |
2014 | register struct command_line *cmdlines; | |
2015 | ||
2016 | cmdlines = c->user_commands; | |
2017 | if (!cmdlines) | |
2018 | return; | |
2019 | fputs_filtered ("User command ", stream); | |
2020 | fputs_filtered (c->name, stream); | |
2021 | fputs_filtered (":\n", stream); | |
2022 | ||
8b93c638 JM |
2023 | #ifdef UI_OUT |
2024 | print_command_lines (uiout, cmdlines, 1); | |
2025 | fputs_filtered ("\n", stream); | |
2026 | #else | |
c906108c SS |
2027 | while (cmdlines) |
2028 | { | |
9e086581 | 2029 | print_command_line (cmdlines, 4, stream); |
c906108c SS |
2030 | cmdlines = cmdlines->next; |
2031 | } | |
2032 | fputs_filtered ("\n", stream); | |
8b93c638 | 2033 | #endif |
c906108c SS |
2034 | } |
2035 | ||
2036 | /* ARGSUSED */ | |
2037 | static void | |
fba45db2 | 2038 | show_user (char *args, int from_tty) |
c906108c SS |
2039 | { |
2040 | struct cmd_list_element *c; | |
2041 | extern struct cmd_list_element *cmdlist; | |
2042 | ||
2043 | if (args) | |
2044 | { | |
2045 | c = lookup_cmd (&args, cmdlist, "", 0, 1); | |
2046 | if (c->class != class_user) | |
2047 | error ("Not a user command."); | |
2048 | show_user_1 (c, gdb_stdout); | |
2049 | } | |
2050 | else | |
2051 | { | |
2052 | for (c = cmdlist; c; c = c->next) | |
2053 | { | |
2054 | if (c->class == class_user) | |
2055 | show_user_1 (c, gdb_stdout); | |
2056 | } | |
2057 | } | |
2058 | } | |
2059 | ||
2060 | void | |
fba45db2 | 2061 | _initialize_command (void) |
c906108c SS |
2062 | { |
2063 | add_com ("shell", class_support, shell_escape, | |
2064 | "Execute the rest of the line as a shell command. \n\ | |
2065 | With no arguments, run an inferior shell."); | |
2066 | ||
acd46a93 AC |
2067 | /* NOTE: cagney/2000-03-20: Being able to enter ``(gdb) !ls'' would |
2068 | be a really useful feature. Unfortunatly, the below wont do | |
2069 | this. Instead it adds support for the form ``(gdb) ! ls'' | |
2070 | (i.e. the space is required). If the ``!'' command below is | |
2071 | added the complains about no ``!'' command would be replaced by | |
2072 | complains about how the ``!'' command is broken :-) */ | |
c906108c | 2073 | if (xdb_commands) |
c5aa993b | 2074 | add_com_alias ("!", "shell", class_support, 0); |
c906108c SS |
2075 | |
2076 | add_com ("make", class_support, make_command, | |
c5aa993b JM |
2077 | "Run the ``make'' program using the rest of the line as arguments."); |
2078 | add_cmd ("user", no_class, show_user, | |
c906108c SS |
2079 | "Show definitions of user defined commands.\n\ |
2080 | Argument is the name of the user defined command.\n\ | |
2081 | With no argument, show definitions of all user defined commands.", &showlist); | |
6837a0a2 | 2082 | add_com ("apropos", class_support, apropos_command, "Search for commands matching a REGEXP"); |
c906108c | 2083 | } |