1 /* Header file for command-reading library command.c.
3 Copyright (C) 1986, 1989, 1990, 1991, 1992, 1993, 1994, 1995, 1999, 2000,
4 2002, 2004, 2007, 2008, 2009 Free Software Foundation, Inc.
6 This program is free software; you can redistribute it and/or modify
7 it under the terms of the GNU General Public License as published by
8 the Free Software Foundation; either version 3 of the License, or
9 (at your option) any later version.
11 This program is distributed in the hope that it will be useful,
12 but WITHOUT ANY WARRANTY; without even the implied warranty of
13 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
14 GNU General Public License for more details.
16 You should have received a copy of the GNU General Public License
17 along with this program. If not, see <http://www.gnu.org/licenses/>. */
19 #if !defined (COMMAND_H)
22 /* Command classes are top-level categories into which commands are broken
23 down for "help" purposes.
24 Notes on classes: class_alias is for alias commands which are not
25 abbreviations of the original command. class-pseudo is for
26 commands which are not really commands nor help topics ("stop"). */
30 /* Special args to help_list */
31 class_deprecated
= -3, all_classes
= -2, all_commands
= -1,
32 /* Classes of commands */
33 no_class
= -1, class_run
= 0, class_vars
, class_stack
,
34 class_files
, class_support
, class_info
, class_breakpoint
, class_trace
,
35 class_alias
, class_obscure
, class_user
, class_maintenance
,
36 class_pseudo
, class_tui
, class_xdb
39 /* FIXME: cagney/2002-03-17: Once cmd_type() has been removed, ``enum
40 cmd_types'' can be moved from "command.h" to "cli-decode.h". */
41 /* Not a set/show command. Note that some commands which begin with
42 "set" or "show" might be in this category, if their syntax does
43 not fall into one of the following categories. */
44 typedef enum cmd_types
52 /* Types of "set" or "show" command. */
53 typedef enum var_types
55 /* "on" or "off". *VAR is an integer which is nonzero for on,
59 /* "on" / "true" / "enable" or "off" / "false" / "disable" or
60 "auto. *VAR is an ``enum auto_boolean''. NOTE: In general a
61 custom show command will need to be implemented - one that for
62 "auto" prints both the "auto" and the current auto-selected
66 /* Unsigned Integer. *VAR is an unsigned int. The user can type 0
67 to mean "unlimited", which is stored in *VAR as UINT_MAX. */
70 /* Like var_uinteger but signed. *VAR is an int. The user can type 0
71 to mean "unlimited", which is stored in *VAR as INT_MAX. */
74 /* String which the user enters with escapes (e.g. the user types \n and
75 it is a real newline in the stored string).
76 *VAR is a malloc'd string, or NULL if the string is empty. */
78 /* String which stores what the user types verbatim.
79 *VAR is a malloc'd string, or NULL if the string is empty. */
81 /* String which stores a filename. (*VAR) is a malloc'd string,
82 or "" if the string was empty. */
83 var_optional_filename
,
84 /* String which stores a filename. (*VAR) is a malloc'd
87 /* ZeroableInteger. *VAR is an int. Like Unsigned Integer except
88 that zero really means zero. */
90 /* ZeroableUnsignedInteger. *VAR is an unsigned int. Zero really
93 /* Enumerated type. Can only have one of the specified values. *VAR is a
94 char pointer to the name of the element that we find. */
99 /* This structure records one command'd definition. */
100 struct cmd_list_element
;
102 /* Forward-declarations of the entry-points of cli/cli-decode.c. */
104 extern struct cmd_list_element
*add_cmd (char *, enum command_class
,
105 void (*fun
) (char *, int), char *,
106 struct cmd_list_element
**);
108 extern struct cmd_list_element
*add_alias_cmd (char *, char *,
109 enum command_class
, int,
110 struct cmd_list_element
**);
112 extern struct cmd_list_element
*add_prefix_cmd (char *, enum command_class
,
113 void (*fun
) (char *, int),
115 struct cmd_list_element
**,
117 struct cmd_list_element
**);
119 extern struct cmd_list_element
*add_abbrev_prefix_cmd (char *,
124 struct cmd_list_element
126 struct cmd_list_element
129 /* Set the commands corresponding callback. */
131 typedef void cmd_cfunc_ftype (char *args
, int from_tty
);
132 extern void set_cmd_cfunc (struct cmd_list_element
*cmd
,
133 cmd_cfunc_ftype
*cfunc
);
135 typedef void cmd_sfunc_ftype (char *args
, int from_tty
,
136 struct cmd_list_element
*c
);
137 extern void set_cmd_sfunc (struct cmd_list_element
*cmd
,
138 cmd_sfunc_ftype
*sfunc
);
140 extern void set_cmd_completer (struct cmd_list_element
*cmd
,
141 char **(*completer
) (struct cmd_list_element
*cmd
,
142 char *text
, char *word
));
144 /* HACK: cagney/2002-02-23: Code, mostly in tracepoints.c, grubs
145 around in cmd objects to test the value of the commands sfunc(). */
146 extern int cmd_cfunc_eq (struct cmd_list_element
*cmd
,
147 void (*cfunc
) (char *args
, int from_tty
));
149 /* Each command object has a local context attached to it. . */
150 extern void set_cmd_context (struct cmd_list_element
*cmd
, void *context
);
151 extern void *get_cmd_context (struct cmd_list_element
*cmd
);
154 /* Execute CMD's pre/post hook. Throw an error if the command fails.
155 If already executing this pre/post hook, or there is no pre/post
156 hook, the call is silently ignored. */
157 extern void execute_cmd_pre_hook (struct cmd_list_element
*cmd
);
158 extern void execute_cmd_post_hook (struct cmd_list_element
*cmd
);
160 /* Return the type of the command. */
161 extern enum cmd_types
cmd_type (struct cmd_list_element
*cmd
);
164 extern struct cmd_list_element
*lookup_cmd (char **,
165 struct cmd_list_element
*, char *,
168 extern struct cmd_list_element
*lookup_cmd_1 (char **,
169 struct cmd_list_element
*,
170 struct cmd_list_element
**,
173 extern struct cmd_list_element
*
174 deprecate_cmd (struct cmd_list_element
*, char * );
177 deprecated_cmd_warning (char **);
180 lookup_cmd_composition (char *text
,
181 struct cmd_list_element
**alias
,
182 struct cmd_list_element
**prefix_cmd
,
183 struct cmd_list_element
**cmd
);
185 extern struct cmd_list_element
*add_com (char *, enum command_class
,
186 void (*fun
) (char *, int), char *);
188 extern struct cmd_list_element
*add_com_alias (char *, char *,
189 enum command_class
, int);
191 extern struct cmd_list_element
*add_info (char *, void (*fun
) (char *, int),
194 extern struct cmd_list_element
*add_info_alias (char *, char *, int);
196 extern char **complete_on_cmdlist (struct cmd_list_element
*, char *, char *);
198 extern char **complete_on_enum (const char *enumlist
[], char *, char *);
200 extern void help_cmd (char *, struct ui_file
*);
202 extern void help_list (struct cmd_list_element
*, char *,
203 enum command_class
, struct ui_file
*);
205 extern void help_cmd_list (struct cmd_list_element
*, enum command_class
,
206 char *, int, struct ui_file
*);
208 /* Method for show a set/show variable's VALUE on FILE. If this
209 method isn't supplied deprecated_show_value_hack() is called (which
211 typedef void (show_value_ftype
) (struct ui_file
*file
,
213 struct cmd_list_element
*cmd
,
215 /* NOTE: i18n: This function is not i18n friendly. Callers should
216 instead print the value out directly. */
217 extern show_value_ftype deprecated_show_value_hack
;
219 extern void add_setshow_enum_cmd (char *name
,
220 enum command_class
class,
221 const char *enumlist
[],
224 const char *show_doc
,
225 const char *help_doc
,
226 cmd_sfunc_ftype
*set_func
,
227 show_value_ftype
*show_func
,
228 struct cmd_list_element
**set_list
,
229 struct cmd_list_element
**show_list
);
231 extern void add_setshow_auto_boolean_cmd (char *name
,
232 enum command_class
class,
233 enum auto_boolean
*var
,
235 const char *show_doc
,
236 const char *help_doc
,
237 cmd_sfunc_ftype
*set_func
,
238 show_value_ftype
*show_func
,
239 struct cmd_list_element
**set_list
,
240 struct cmd_list_element
**show_list
);
242 extern void add_setshow_boolean_cmd (char *name
,
243 enum command_class
class,
245 const char *set_doc
, const char *show_doc
,
246 const char *help_doc
,
247 cmd_sfunc_ftype
*set_func
,
248 show_value_ftype
*show_func
,
249 struct cmd_list_element
**set_list
,
250 struct cmd_list_element
**show_list
);
252 extern void add_setshow_filename_cmd (char *name
,
253 enum command_class
class,
256 const char *show_doc
,
257 const char *help_doc
,
258 cmd_sfunc_ftype
*set_func
,
259 show_value_ftype
*show_func
,
260 struct cmd_list_element
**set_list
,
261 struct cmd_list_element
**show_list
);
263 extern struct cmd_list_element
*
264 add_setshow_string_cmd (char *name
,
265 enum command_class
class,
268 const char *show_doc
,
269 const char *help_doc
,
270 cmd_sfunc_ftype
*set_func
,
271 show_value_ftype
*show_func
,
272 struct cmd_list_element
**set_list
,
273 struct cmd_list_element
**show_list
);
275 extern struct cmd_list_element
*
276 add_setshow_string_noescape_cmd (char *name
,
277 enum command_class
class,
280 const char *show_doc
,
281 const char *help_doc
,
282 cmd_sfunc_ftype
*set_func
,
283 show_value_ftype
*show_func
,
284 struct cmd_list_element
**set_list
,
285 struct cmd_list_element
**show_list
);
287 extern void add_setshow_optional_filename_cmd (char *name
,
288 enum command_class
class,
291 const char *show_doc
,
292 const char *help_doc
,
293 cmd_sfunc_ftype
*set_func
,
294 show_value_ftype
*show_func
,
295 struct cmd_list_element
**set_list
,
296 struct cmd_list_element
**show_list
);
298 extern struct cmd_list_element
*
299 add_setshow_integer_cmd (char *name
,
300 enum command_class
class,
303 const char *show_doc
,
304 const char *help_doc
,
305 cmd_sfunc_ftype
*set_func
,
306 show_value_ftype
*show_func
,
307 struct cmd_list_element
**set_list
,
308 struct cmd_list_element
**show_list
);
310 extern struct cmd_list_element
*
311 add_setshow_uinteger_cmd (char *name
,
312 enum command_class
class,
315 const char *show_doc
,
316 const char *help_doc
,
317 cmd_sfunc_ftype
*set_func
,
318 show_value_ftype
*show_func
,
319 struct cmd_list_element
**set_list
,
320 struct cmd_list_element
**show_list
);
322 extern struct cmd_list_element
*
323 add_setshow_zinteger_cmd (char *name
,
324 enum command_class
class,
327 const char *show_doc
,
328 const char *help_doc
,
329 cmd_sfunc_ftype
*set_func
,
330 show_value_ftype
*show_func
,
331 struct cmd_list_element
**set_list
,
332 struct cmd_list_element
**show_list
);
334 extern struct cmd_list_element
*
335 add_setshow_zuinteger_cmd (char *name
,
336 enum command_class
class,
339 const char *show_doc
,
340 const char *help_doc
,
341 cmd_sfunc_ftype
*set_func
,
342 show_value_ftype
*show_func
,
343 struct cmd_list_element
**set_list
,
344 struct cmd_list_element
**show_list
);
346 /* Do a "show" command for each thing on a command list. */
348 extern void cmd_show_list (struct cmd_list_element
*, int, char *);
350 extern NORETURN
void error_no_arg (char *) ATTR_NORETURN
;
352 extern void dont_repeat (void);
354 /* Used to mark commands that don't do anything. If we just leave the
355 function field NULL, the command is interpreted as a help topic, or
356 as a class of commands. */
358 extern void not_just_help_class_command (char *, int);
360 /* check function pointer */
361 extern int cmd_func_p (struct cmd_list_element
*cmd
);
363 /* call the command function */
364 extern void cmd_func (struct cmd_list_element
*cmd
, char *args
, int from_tty
);
366 #endif /* !defined (COMMAND_H) */