Commit | Line | Data |
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50aeff07 | 1 | /* Header file for command creation. |
18a642a1 | 2 | |
e2882c85 | 3 | Copyright (C) 1986-2018 Free Software Foundation, Inc. |
c906108c | 4 | |
c5aa993b JM |
5 | This program is free software; you can redistribute it and/or modify |
6 | it under the terms of the GNU General Public License as published by | |
a9762ec7 | 7 | the Free Software Foundation; either version 3 of the License, or |
c5aa993b | 8 | (at your option) any later version. |
c906108c | 9 | |
c5aa993b JM |
10 | This program is distributed in the hope that it will be useful, |
11 | but WITHOUT ANY WARRANTY; without even the implied warranty of | |
12 | MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the | |
13 | GNU General Public License for more details. | |
c906108c | 14 | |
c5aa993b | 15 | You should have received a copy of the GNU General Public License |
a9762ec7 | 16 | along with this program. If not, see <http://www.gnu.org/licenses/>. */ |
c906108c SS |
17 | |
18 | #if !defined (COMMAND_H) | |
19 | #define COMMAND_H 1 | |
20 | ||
49c4e619 | 21 | #include "gdb_vecs.h" |
6e75794e | 22 | #include "common/scoped_restore.h" |
49c4e619 | 23 | |
eb3ff9a5 PA |
24 | struct completion_tracker; |
25 | ||
50aeff07 PA |
26 | /* This file defines the public interface for any code wanting to |
27 | create commands. */ | |
28 | ||
aff410f1 MS |
29 | /* Command classes are top-level categories into which commands are |
30 | broken down for "help" purposes. | |
31 | ||
6426a772 JM |
32 | Notes on classes: class_alias is for alias commands which are not |
33 | abbreviations of the original command. class-pseudo is for | |
34 | commands which are not really commands nor help topics ("stop"). */ | |
35 | ||
36 | enum command_class | |
37 | { | |
38 | /* Special args to help_list */ | |
6e381ba0 | 39 | class_deprecated = -3, all_classes = -2, all_commands = -1, |
6426a772 | 40 | /* Classes of commands */ |
aff410f1 MS |
41 | no_class = -1, class_run = 0, class_vars, class_stack, class_files, |
42 | class_support, class_info, class_breakpoint, class_trace, | |
6b04bdb7 | 43 | class_alias, class_bookmark, class_obscure, class_maintenance, |
db5f229b MS |
44 | class_pseudo, class_tui, class_user, class_xdb, |
45 | no_set_class /* Used for "show" commands that have no corresponding | |
46 | "set" command. */ | |
6426a772 JM |
47 | }; |
48 | ||
18a642a1 AC |
49 | /* FIXME: cagney/2002-03-17: Once cmd_type() has been removed, ``enum |
50 | cmd_types'' can be moved from "command.h" to "cli-decode.h". */ | |
c906108c SS |
51 | /* Not a set/show command. Note that some commands which begin with |
52 | "set" or "show" might be in this category, if their syntax does | |
53 | not fall into one of the following categories. */ | |
c5aa993b JM |
54 | typedef enum cmd_types |
55 | { | |
56 | not_set_cmd, | |
57 | set_cmd, | |
58 | show_cmd | |
59 | } | |
60 | cmd_types; | |
c906108c SS |
61 | |
62 | /* Types of "set" or "show" command. */ | |
c5aa993b JM |
63 | typedef enum var_types |
64 | { | |
65 | /* "on" or "off". *VAR is an integer which is nonzero for on, | |
66 | zero for off. */ | |
67 | var_boolean, | |
97c3646f AC |
68 | |
69 | /* "on" / "true" / "enable" or "off" / "false" / "disable" or | |
7f19b9a2 AC |
70 | "auto. *VAR is an ``enum auto_boolean''. NOTE: In general a |
71 | custom show command will need to be implemented - one that for | |
72 | "auto" prints both the "auto" and the current auto-selected | |
ebcd3b23 | 73 | value. */ |
97c3646f AC |
74 | var_auto_boolean, |
75 | ||
aff410f1 MS |
76 | /* Unsigned Integer. *VAR is an unsigned int. The user can type |
77 | 0 to mean "unlimited", which is stored in *VAR as UINT_MAX. */ | |
c5aa993b JM |
78 | var_uinteger, |
79 | ||
aff410f1 MS |
80 | /* Like var_uinteger but signed. *VAR is an int. The user can |
81 | type 0 to mean "unlimited", which is stored in *VAR as | |
6fc1c773 YQ |
82 | INT_MAX. The only remaining use of it is the Python API. |
83 | Don't use it elsewhere. */ | |
c5aa993b JM |
84 | var_integer, |
85 | ||
aff410f1 MS |
86 | /* String which the user enters with escapes (e.g. the user types |
87 | \n and it is a real newline in the stored string). | |
c5aa993b JM |
88 | *VAR is a malloc'd string, or NULL if the string is empty. */ |
89 | var_string, | |
90 | /* String which stores what the user types verbatim. | |
91 | *VAR is a malloc'd string, or NULL if the string is empty. */ | |
92 | var_string_noescape, | |
b4b4ac0b AC |
93 | /* String which stores a filename. (*VAR) is a malloc'd string, |
94 | or "" if the string was empty. */ | |
95 | var_optional_filename, | |
96 | /* String which stores a filename. (*VAR) is a malloc'd | |
97 | string. */ | |
c5aa993b | 98 | var_filename, |
a7c3d162 | 99 | /* ZeroableInteger. *VAR is an int. Like var_integer except |
c5aa993b JM |
100 | that zero really means zero. */ |
101 | var_zinteger, | |
1e8fb976 PA |
102 | /* ZeroableUnsignedInteger. *VAR is an unsigned int. Zero really |
103 | means zero. */ | |
104 | var_zuinteger, | |
b69b1fb1 YQ |
105 | /* ZeroableUnsignedInteger with unlimited value. *VAR is an int, |
106 | but its range is [0, INT_MAX]. -1 stands for unlimited and | |
107 | other negative numbers are not allowed. */ | |
6fc1c773 | 108 | var_zuinteger_unlimited, |
aff410f1 MS |
109 | /* Enumerated type. Can only have one of the specified values. |
110 | *VAR is a char pointer to the name of the element that we | |
111 | find. */ | |
c5aa993b JM |
112 | var_enum |
113 | } | |
114 | var_types; | |
c906108c SS |
115 | |
116 | /* This structure records one command'd definition. */ | |
18a642a1 | 117 | struct cmd_list_element; |
c906108c | 118 | |
0450cc4c | 119 | typedef void cmd_const_cfunc_ftype (const char *args, int from_tty); |
82ae6c8d | 120 | |
4034d0ff AT |
121 | /* This structure specifies notifications to be suppressed by a cli |
122 | command interpreter. */ | |
123 | ||
124 | struct cli_suppress_notification | |
125 | { | |
126 | /* Inferior, thread, frame selected notification suppressed? */ | |
127 | int user_selected_context; | |
128 | }; | |
129 | ||
130 | extern struct cli_suppress_notification cli_suppress_notification; | |
131 | ||
18d5d590 | 132 | /* Forward-declarations of the entry-points of cli/cli-decode.c. */ |
c906108c | 133 | |
50aeff07 PA |
134 | /* API to the manipulation of command lists. */ |
135 | ||
5a56e9c5 DE |
136 | extern int valid_user_defined_cmd_name_p (const char *name); |
137 | ||
0450cc4c TT |
138 | /* Const-correct variant of the above. */ |
139 | ||
140 | extern struct cmd_list_element *add_cmd (const char *, enum command_class, | |
141 | cmd_const_cfunc_ftype *fun, | |
142 | const char *, | |
143 | struct cmd_list_element **); | |
144 | ||
145 | /* Like add_cmd, but no command function is specified. */ | |
146 | ||
147 | extern struct cmd_list_element *add_cmd (const char *, enum command_class, | |
148 | const char *, | |
149 | struct cmd_list_element **); | |
150 | ||
6f937416 | 151 | extern struct cmd_list_element *add_alias_cmd (const char *, const char *, |
a14ed312 KB |
152 | enum command_class, int, |
153 | struct cmd_list_element **); | |
154 | ||
21873064 YQ |
155 | extern struct cmd_list_element *add_alias_cmd (const char *, |
156 | cmd_list_element *, | |
157 | enum command_class, int, | |
158 | struct cmd_list_element **); | |
159 | ||
160 | ||
6f937416 | 161 | extern struct cmd_list_element *add_prefix_cmd (const char *, enum command_class, |
981a3fb3 | 162 | cmd_const_cfunc_ftype *fun, |
1947513d | 163 | const char *, |
a14ed312 | 164 | struct cmd_list_element **, |
64e61d29 | 165 | const char *, int, |
a14ed312 KB |
166 | struct cmd_list_element **); |
167 | ||
6f937416 | 168 | extern struct cmd_list_element *add_abbrev_prefix_cmd (const char *, |
a14ed312 | 169 | enum command_class, |
ee7ddd71 | 170 | cmd_const_cfunc_ftype *fun, |
1947513d | 171 | const char *, |
a14ed312 | 172 | struct cmd_list_element |
64e61d29 | 173 | **, const char *, int, |
a14ed312 KB |
174 | struct cmd_list_element |
175 | **); | |
176 | ||
eb4c3f4a TT |
177 | typedef void cmd_const_sfunc_ftype (const char *args, int from_tty, |
178 | struct cmd_list_element *c); | |
9f60d481 | 179 | extern void set_cmd_sfunc (struct cmd_list_element *cmd, |
eb4c3f4a | 180 | cmd_const_sfunc_ftype *sfunc); |
9f60d481 | 181 | |
eb3ff9a5 | 182 | /* A completion routine. Add possible completions to tracker. |
6e1dbf8c PA |
183 | |
184 | TEXT is the text beyond what was matched for the command itself | |
185 | (leading whitespace is skipped). It stops where we are supposed to | |
186 | stop completing (rl_point) and is '\0' terminated. WORD points in | |
187 | the same buffer as TEXT, and completions should be returned | |
188 | relative to this position. For example, suppose TEXT is "foo" and | |
189 | we want to complete to "foobar". If WORD is "oo", return "oobar"; | |
190 | if WORD is "baz/foo", return "baz/foobar". */ | |
eb3ff9a5 PA |
191 | typedef void completer_ftype (struct cmd_list_element *, |
192 | completion_tracker &tracker, | |
193 | const char *text, const char *word); | |
625e8578 | 194 | |
6e1dbf8c PA |
195 | /* Same, but for set_cmd_completer_handle_brkchars. */ |
196 | typedef void completer_handle_brkchars_ftype (struct cmd_list_element *, | |
eb3ff9a5 | 197 | completion_tracker &tracker, |
6e1dbf8c | 198 | const char *text, const char *word); |
7d793aa9 | 199 | |
625e8578 | 200 | extern void set_cmd_completer (struct cmd_list_element *, completer_ftype *); |
5ba2abeb | 201 | |
7d793aa9 SDJ |
202 | /* Set the completer_handle_brkchars callback. */ |
203 | ||
204 | extern void set_cmd_completer_handle_brkchars (struct cmd_list_element *, | |
6e1dbf8c | 205 | completer_handle_brkchars_ftype *); |
7d793aa9 | 206 | |
bbaca940 AC |
207 | /* HACK: cagney/2002-02-23: Code, mostly in tracepoints.c, grubs |
208 | around in cmd objects to test the value of the commands sfunc(). */ | |
0450cc4c TT |
209 | extern int cmd_cfunc_eq (struct cmd_list_element *cmd, |
210 | cmd_const_cfunc_ftype *cfun); | |
9f60d481 | 211 | |
ebcd3b23 | 212 | /* Each command object has a local context attached to it. */ |
aff410f1 MS |
213 | extern void set_cmd_context (struct cmd_list_element *cmd, |
214 | void *context); | |
7d0766f3 AC |
215 | extern void *get_cmd_context (struct cmd_list_element *cmd); |
216 | ||
217 | ||
5913bcb0 AC |
218 | /* Execute CMD's pre/post hook. Throw an error if the command fails. |
219 | If already executing this pre/post hook, or there is no pre/post | |
220 | hook, the call is silently ignored. */ | |
221 | extern void execute_cmd_pre_hook (struct cmd_list_element *cmd); | |
222 | extern void execute_cmd_post_hook (struct cmd_list_element *cmd); | |
223 | ||
1868c04e | 224 | /* Return the type of the command. */ |
1868c04e AC |
225 | extern enum cmd_types cmd_type (struct cmd_list_element *cmd); |
226 | ||
50aeff07 PA |
227 | /* Flag for an ambiguous cmd_list result. */ |
228 | #define CMD_LIST_AMBIGUOUS ((struct cmd_list_element *) -1) | |
1868c04e | 229 | |
6f937416 | 230 | extern struct cmd_list_element *lookup_cmd (const char **, |
a121b7c1 PA |
231 | struct cmd_list_element *, |
232 | const char *, | |
a14ed312 KB |
233 | int, int); |
234 | ||
6f937416 | 235 | extern struct cmd_list_element *lookup_cmd_1 (const char **, |
a14ed312 KB |
236 | struct cmd_list_element *, |
237 | struct cmd_list_element **, | |
238 | int); | |
c906108c | 239 | |
aff410f1 | 240 | extern struct cmd_list_element *deprecate_cmd (struct cmd_list_element *, |
429e55ea | 241 | const char * ); |
56382845 | 242 | |
6f937416 | 243 | extern void deprecated_cmd_warning (const char *); |
56382845 | 244 | |
6f937416 | 245 | extern int lookup_cmd_composition (const char *text, |
aff410f1 MS |
246 | struct cmd_list_element **alias, |
247 | struct cmd_list_element **prefix_cmd, | |
248 | struct cmd_list_element **cmd); | |
56382845 | 249 | |
6f937416 | 250 | extern struct cmd_list_element *add_com (const char *, enum command_class, |
0b39b52e | 251 | cmd_const_cfunc_ftype *fun, |
1947513d | 252 | const char *); |
c906108c | 253 | |
6f937416 | 254 | extern struct cmd_list_element *add_com_alias (const char *, const char *, |
a14ed312 | 255 | enum command_class, int); |
c906108c | 256 | |
4034d0ff AT |
257 | extern struct cmd_list_element *add_com_suppress_notification |
258 | (const char *name, enum command_class theclass, | |
1ee870c5 | 259 | cmd_const_cfunc_ftype *fun, const char *doc, |
4034d0ff AT |
260 | int *supress_notification); |
261 | ||
6f937416 | 262 | extern struct cmd_list_element *add_info (const char *, |
1d12d88f | 263 | cmd_const_cfunc_ftype *fun, |
1947513d | 264 | const char *); |
c906108c | 265 | |
1947513d TT |
266 | extern struct cmd_list_element *add_info_alias (const char *, const char *, |
267 | int); | |
c906108c | 268 | |
eb3ff9a5 PA |
269 | extern void complete_on_cmdlist (struct cmd_list_element *, |
270 | completion_tracker &tracker, | |
271 | const char *, const char *, int); | |
c906108c | 272 | |
eb3ff9a5 PA |
273 | extern void complete_on_enum (completion_tracker &tracker, |
274 | const char *const *enumlist, | |
275 | const char *, const char *); | |
c906108c | 276 | |
50aeff07 | 277 | /* Functions that implement commands about CLI commands. */ |
c906108c | 278 | |
64e61d29 | 279 | extern void help_list (struct cmd_list_element *, const char *, |
d9fcf2fb | 280 | enum command_class, struct ui_file *); |
c906108c | 281 | |
08546159 AC |
282 | /* Method for show a set/show variable's VALUE on FILE. If this |
283 | method isn't supplied deprecated_show_value_hack() is called (which | |
284 | is not good). */ | |
285 | typedef void (show_value_ftype) (struct ui_file *file, | |
286 | int from_tty, | |
287 | struct cmd_list_element *cmd, | |
288 | const char *value); | |
289 | /* NOTE: i18n: This function is not i18n friendly. Callers should | |
290 | instead print the value out directly. */ | |
291 | extern show_value_ftype deprecated_show_value_hack; | |
292 | ||
6f937416 | 293 | extern void add_setshow_enum_cmd (const char *name, |
fe978cb0 | 294 | enum command_class theclass, |
40478521 | 295 | const char *const *enumlist, |
1b295c3d AC |
296 | const char **var, |
297 | const char *set_doc, | |
298 | const char *show_doc, | |
299 | const char *help_doc, | |
eb4c3f4a | 300 | cmd_const_sfunc_ftype *set_func, |
08546159 | 301 | show_value_ftype *show_func, |
1b295c3d | 302 | struct cmd_list_element **set_list, |
7376b4c2 | 303 | struct cmd_list_element **show_list); |
c906108c | 304 | |
6f937416 | 305 | extern void add_setshow_auto_boolean_cmd (const char *name, |
fe978cb0 | 306 | enum command_class theclass, |
e9e68a56 | 307 | enum auto_boolean *var, |
3b64bf98 AC |
308 | const char *set_doc, |
309 | const char *show_doc, | |
310 | const char *help_doc, | |
eb4c3f4a | 311 | cmd_const_sfunc_ftype *set_func, |
08546159 | 312 | show_value_ftype *show_func, |
e9e68a56 AC |
313 | struct cmd_list_element **set_list, |
314 | struct cmd_list_element **show_list); | |
97c3646f | 315 | |
6f937416 | 316 | extern void add_setshow_boolean_cmd (const char *name, |
fe978cb0 | 317 | enum command_class theclass, |
e707bbc2 | 318 | int *var, |
3b64bf98 | 319 | const char *set_doc, const char *show_doc, |
2c5b56ce | 320 | const char *help_doc, |
eb4c3f4a | 321 | cmd_const_sfunc_ftype *set_func, |
08546159 | 322 | show_value_ftype *show_func, |
e707bbc2 AC |
323 | struct cmd_list_element **set_list, |
324 | struct cmd_list_element **show_list); | |
f3796e26 | 325 | |
6f937416 | 326 | extern void add_setshow_filename_cmd (const char *name, |
fe978cb0 | 327 | enum command_class theclass, |
b3f42336 AC |
328 | char **var, |
329 | const char *set_doc, | |
330 | const char *show_doc, | |
331 | const char *help_doc, | |
eb4c3f4a | 332 | cmd_const_sfunc_ftype *set_func, |
08546159 | 333 | show_value_ftype *show_func, |
b3f42336 AC |
334 | struct cmd_list_element **set_list, |
335 | struct cmd_list_element **show_list); | |
336 | ||
6f937416 | 337 | extern void add_setshow_string_cmd (const char *name, |
fe978cb0 | 338 | enum command_class theclass, |
5efd5804 PA |
339 | char **var, |
340 | const char *set_doc, | |
341 | const char *show_doc, | |
342 | const char *help_doc, | |
eb4c3f4a | 343 | cmd_const_sfunc_ftype *set_func, |
5efd5804 PA |
344 | show_value_ftype *show_func, |
345 | struct cmd_list_element **set_list, | |
346 | struct cmd_list_element **show_list); | |
347 | ||
44478ab3 | 348 | extern struct cmd_list_element *add_setshow_string_noescape_cmd |
6f937416 | 349 | (const char *name, |
fe978cb0 | 350 | enum command_class theclass, |
44478ab3 TT |
351 | char **var, |
352 | const char *set_doc, | |
353 | const char *show_doc, | |
354 | const char *help_doc, | |
eb4c3f4a | 355 | cmd_const_sfunc_ftype *set_func, |
44478ab3 TT |
356 | show_value_ftype *show_func, |
357 | struct cmd_list_element **set_list, | |
358 | struct cmd_list_element **show_list); | |
26c41df3 | 359 | |
6f937416 | 360 | extern void add_setshow_optional_filename_cmd (const char *name, |
fe978cb0 | 361 | enum command_class theclass, |
b4b4ac0b AC |
362 | char **var, |
363 | const char *set_doc, | |
364 | const char *show_doc, | |
365 | const char *help_doc, | |
eb4c3f4a | 366 | cmd_const_sfunc_ftype *set_func, |
b4b4ac0b AC |
367 | show_value_ftype *show_func, |
368 | struct cmd_list_element **set_list, | |
369 | struct cmd_list_element **show_list); | |
370 | ||
6f937416 | 371 | extern void add_setshow_integer_cmd (const char *name, |
fe978cb0 | 372 | enum command_class theclass, |
5efd5804 PA |
373 | int *var, |
374 | const char *set_doc, | |
375 | const char *show_doc, | |
376 | const char *help_doc, | |
eb4c3f4a | 377 | cmd_const_sfunc_ftype *set_func, |
5efd5804 PA |
378 | show_value_ftype *show_func, |
379 | struct cmd_list_element **set_list, | |
380 | struct cmd_list_element **show_list); | |
c0d88b1b | 381 | |
6f937416 | 382 | extern void add_setshow_uinteger_cmd (const char *name, |
fe978cb0 | 383 | enum command_class theclass, |
5efd5804 PA |
384 | unsigned int *var, |
385 | const char *set_doc, | |
386 | const char *show_doc, | |
387 | const char *help_doc, | |
eb4c3f4a | 388 | cmd_const_sfunc_ftype *set_func, |
5efd5804 PA |
389 | show_value_ftype *show_func, |
390 | struct cmd_list_element **set_list, | |
391 | struct cmd_list_element **show_list); | |
15170568 | 392 | |
6f937416 | 393 | extern void add_setshow_zinteger_cmd (const char *name, |
fe978cb0 | 394 | enum command_class theclass, |
5efd5804 PA |
395 | int *var, |
396 | const char *set_doc, | |
397 | const char *show_doc, | |
398 | const char *help_doc, | |
eb4c3f4a | 399 | cmd_const_sfunc_ftype *set_func, |
5efd5804 PA |
400 | show_value_ftype *show_func, |
401 | struct cmd_list_element **set_list, | |
402 | struct cmd_list_element **show_list); | |
25d29d70 | 403 | |
6f937416 | 404 | extern void add_setshow_zuinteger_cmd (const char *name, |
fe978cb0 | 405 | enum command_class theclass, |
5efd5804 PA |
406 | unsigned int *var, |
407 | const char *set_doc, | |
408 | const char *show_doc, | |
409 | const char *help_doc, | |
eb4c3f4a | 410 | cmd_const_sfunc_ftype *set_func, |
6fc1c773 YQ |
411 | show_value_ftype *show_func, |
412 | struct cmd_list_element **set_list, | |
413 | struct cmd_list_element **show_list); | |
414 | ||
415 | extern void | |
6f937416 | 416 | add_setshow_zuinteger_unlimited_cmd (const char *name, |
fe978cb0 | 417 | enum command_class theclass, |
b69b1fb1 | 418 | int *var, |
6fc1c773 YQ |
419 | const char *set_doc, |
420 | const char *show_doc, | |
421 | const char *help_doc, | |
eb4c3f4a | 422 | cmd_const_sfunc_ftype *set_func, |
5efd5804 PA |
423 | show_value_ftype *show_func, |
424 | struct cmd_list_element **set_list, | |
425 | struct cmd_list_element **show_list); | |
1e8fb976 | 426 | |
c906108c SS |
427 | /* Do a "show" command for each thing on a command list. */ |
428 | ||
64e61d29 | 429 | extern void cmd_show_list (struct cmd_list_element *, int, const char *); |
c906108c | 430 | |
c25c4a8b | 431 | /* Used everywhere whenever at least one parameter is required and |
ebcd3b23 | 432 | none is specified. */ |
c25c4a8b | 433 | |
5b10184c | 434 | extern void error_no_arg (const char *) ATTRIBUTE_NORETURN; |
c906108c | 435 | |
a14ed312 | 436 | extern void dont_repeat (void); |
c906108c | 437 | |
1ac32117 | 438 | extern scoped_restore_tmpl<int> prevent_dont_repeat (void); |
47a80e90 | 439 | |
85c4be7c TT |
440 | /* Set the arguments that will be passed if the current command is |
441 | repeated. Note that the passed-in string must be a constant. */ | |
442 | ||
443 | extern void set_repeat_arguments (const char *args); | |
444 | ||
c906108c SS |
445 | /* Used to mark commands that don't do anything. If we just leave the |
446 | function field NULL, the command is interpreted as a help topic, or | |
447 | as a class of commands. */ | |
448 | ||
eb7c454d | 449 | extern void not_just_help_class_command (const char *, int); |
c906108c | 450 | |
aff410f1 | 451 | /* Check function pointer. */ |
f436dd25 MH |
452 | extern int cmd_func_p (struct cmd_list_element *cmd); |
453 | ||
aff410f1 MS |
454 | /* Call the command function. */ |
455 | extern void cmd_func (struct cmd_list_element *cmd, | |
95a6b0a1 | 456 | const char *args, int from_tty); |
f436dd25 | 457 | |
c906108c | 458 | #endif /* !defined (COMMAND_H) */ |