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