1 /* Handle set and show GDB commands.
3 Copyright 2000, 2001, 2002, 2003 Free Software Foundation, Inc.
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
7 the Free Software Foundation; either version 2 of the License, or
8 (at your option) any later version.
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.
15 You should have received a copy of the GNU General Public License
16 along with this program; if not, write to the Free Software
17 Foundation, Inc., 59 Temple Place - Suite 330,
18 Boston, MA 02111-1307, USA. */
21 #include "readline/tilde.h"
24 #include "gdb_string.h"
28 #include "cli/cli-decode.h"
29 #include "cli/cli-cmds.h"
30 #include "cli/cli-setshow.h"
32 /* Prototypes for local functions */
34 static int parse_binary_operation (char *);
37 static enum auto_boolean
38 parse_auto_binary_operation (const char *arg
)
40 if (arg
!= NULL
&& *arg
!= '\0')
42 int length
= strlen (arg
);
43 while (isspace (arg
[length
- 1]) && length
> 0)
45 if (strncmp (arg
, "on", length
) == 0
46 || strncmp (arg
, "1", length
) == 0
47 || strncmp (arg
, "yes", length
) == 0
48 || strncmp (arg
, "enable", length
) == 0)
49 return AUTO_BOOLEAN_TRUE
;
50 else if (strncmp (arg
, "off", length
) == 0
51 || strncmp (arg
, "0", length
) == 0
52 || strncmp (arg
, "no", length
) == 0
53 || strncmp (arg
, "disable", length
) == 0)
54 return AUTO_BOOLEAN_FALSE
;
55 else if (strncmp (arg
, "auto", length
) == 0
56 || (strncmp (arg
, "-1", length
) == 0 && length
> 1))
57 return AUTO_BOOLEAN_AUTO
;
59 error (_("\"on\", \"off\" or \"auto\" expected."));
60 return AUTO_BOOLEAN_AUTO
; /* pacify GCC */
64 parse_binary_operation (char *arg
)
71 length
= strlen (arg
);
73 while (arg
[length
- 1] == ' ' || arg
[length
- 1] == '\t')
76 if (strncmp (arg
, "on", length
) == 0
77 || strncmp (arg
, "1", length
) == 0
78 || strncmp (arg
, "yes", length
) == 0
79 || strncmp (arg
, "enable", length
) == 0)
81 else if (strncmp (arg
, "off", length
) == 0
82 || strncmp (arg
, "0", length
) == 0
83 || strncmp (arg
, "no", length
) == 0
84 || strncmp (arg
, "disable", length
) == 0)
88 error (_("\"on\" or \"off\" expected."));
94 deprecated_show_value_hack (struct ui_file
*ignore_file
,
96 struct cmd_list_element
*c
,
99 /* If there's no command or value, don't try to print it out. */
100 if (c
== NULL
|| value
== NULL
)
102 /* Print doc minus "show" at start. */
103 print_doc_line (gdb_stdout
, c
->doc
+ 5);
107 case var_string_noescape
:
108 case var_optional_filename
:
111 printf_filtered ((" is \"%s\".\n"), value
);
114 printf_filtered ((" is %s.\n"), value
);
119 /* Do a "set" or "show" command. ARG is NULL if no argument, or the text
120 of the argument, and FROM_TTY is nonzero if this command is being entered
121 directly by the user (i.e. these are just like any other
122 command). C is the command list element for the command. */
125 do_setshow_command (char *arg
, int from_tty
, struct cmd_list_element
*c
)
127 if (c
->type
== set_cmd
)
140 new = (char *) xmalloc (strlen (arg
) + 2);
143 while ((ch
= *p
++) != '\000')
147 /* \ at end of argument is used after spaces
148 so they won't be lost. */
149 /* This is obsolete now that we no longer strip
150 trailing whitespace and actually, the backslash
151 didn't get here in my test, readline or
152 something did something funky with a backslash
153 right before a newline. */
156 ch
= parse_escape (&p
);
166 if (*(p
- 1) != '\\')
170 new = (char *) xrealloc (new, q
- new);
171 if (*(char **) c
->var
!= NULL
)
172 xfree (*(char **) c
->var
);
173 *(char **) c
->var
= new;
176 case var_string_noescape
:
179 if (*(char **) c
->var
!= NULL
)
180 xfree (*(char **) c
->var
);
181 *(char **) c
->var
= savestring (arg
, strlen (arg
));
183 case var_optional_filename
:
186 if (*(char **) c
->var
!= NULL
)
187 xfree (*(char **) c
->var
);
188 *(char **) c
->var
= savestring (arg
, strlen (arg
));
192 error_no_arg (_("filename to set it to."));
193 if (*(char **) c
->var
!= NULL
)
194 xfree (*(char **) c
->var
);
195 *(char **) c
->var
= tilde_expand (arg
);
198 *(int *) c
->var
= parse_binary_operation (arg
);
200 case var_auto_boolean
:
201 *(enum auto_boolean
*) c
->var
= parse_auto_binary_operation (arg
);
205 error_no_arg (_("integer to set it to."));
206 *(unsigned int *) c
->var
= parse_and_eval_long (arg
);
207 if (*(unsigned int *) c
->var
== 0)
208 *(unsigned int *) c
->var
= UINT_MAX
;
214 error_no_arg (_("integer to set it to."));
215 val
= parse_and_eval_long (arg
);
217 *(int *) c
->var
= INT_MAX
;
218 else if (val
>= INT_MAX
)
219 error (_("integer %u out of range"), val
);
221 *(int *) c
->var
= val
;
226 error_no_arg (_("integer to set it to."));
227 *(int *) c
->var
= parse_and_eval_long (arg
);
234 const char *match
= NULL
;
237 /* if no argument was supplied, print an informative error message */
241 strcpy (msg
, "Requires an argument. Valid arguments are ");
242 for (i
= 0; c
->enums
[i
]; i
++)
246 strcat (msg
, c
->enums
[i
]);
252 p
= strchr (arg
, ' ');
260 for (i
= 0; c
->enums
[i
]; i
++)
261 if (strncmp (arg
, c
->enums
[i
], len
) == 0)
263 if (c
->enums
[i
][len
] == '\0')
267 break; /* exact match. */
277 error (_("Undefined item: \"%s\"."), arg
);
280 error (_("Ambiguous item \"%s\"."), arg
);
282 *(const char **) c
->var
= match
;
286 error (_("gdb internal error: bad var_type in do_setshow_command"));
289 else if (c
->type
== show_cmd
)
291 struct cleanup
*old_chain
;
292 struct ui_stream
*stb
;
294 stb
= ui_out_stream_new (uiout
);
295 old_chain
= make_cleanup_ui_out_stream_delete (stb
);
297 /* Possibly call the pre hook. */
298 if (c
->pre_show_hook
)
299 (c
->pre_show_hook
) (c
);
307 if (*(unsigned char **) c
->var
)
308 fputstr_filtered (*(unsigned char **) c
->var
, '"', stb
->stream
);
311 case var_string_noescape
:
312 case var_optional_filename
:
315 if (*(char **) c
->var
)
316 fputs_filtered (*(char **) c
->var
, stb
->stream
);
319 fputs_filtered (*(int *) c
->var
? "on" : "off", stb
->stream
);
321 case var_auto_boolean
:
322 switch (*(enum auto_boolean
*) c
->var
)
324 case AUTO_BOOLEAN_TRUE
:
325 fputs_filtered ("on", stb
->stream
);
327 case AUTO_BOOLEAN_FALSE
:
328 fputs_filtered ("off", stb
->stream
);
330 case AUTO_BOOLEAN_AUTO
:
331 fputs_filtered ("auto", stb
->stream
);
334 internal_error (__FILE__
, __LINE__
,
335 _("do_setshow_command: invalid var_auto_boolean"));
340 if (*(unsigned int *) c
->var
== UINT_MAX
)
342 fputs_filtered ("unlimited", stb
->stream
);
345 /* else fall through */
347 fprintf_filtered (stb
->stream
, "%u", *(unsigned int *) c
->var
);
350 if (*(int *) c
->var
== INT_MAX
)
352 fputs_filtered ("unlimited", stb
->stream
);
355 fprintf_filtered (stb
->stream
, "%d", *(int *) c
->var
);
359 error (_("gdb internal error: bad var_type in do_setshow_command"));
363 /* FIXME: cagney/2005-02-10: Need to split this in half: code to
364 convert the value into a string (esentially the above); and
365 code to print the value out. For the latter there should be
366 MI and CLI specific versions. */
368 if (ui_out_is_mi_like_p (uiout
))
369 ui_out_field_stream (uiout
, "value", stb
);
373 char *value
= ui_file_xstrdup (stb
->stream
, &length
);
374 make_cleanup (xfree
, value
);
375 if (c
->show_value_func
!= NULL
)
376 c
->show_value_func (gdb_stdout
, from_tty
, c
, value
);
378 deprecated_show_value_hack (gdb_stdout
, from_tty
, c
, value
);
380 do_cleanups (old_chain
);
383 error (_("gdb internal error: bad cmd_type in do_setshow_command"));
384 c
->func (c
, NULL
, from_tty
);
385 if (c
->type
== set_cmd
&& deprecated_set_hook
)
386 deprecated_set_hook (c
);
389 /* Show all the settings in a list of show commands. */
392 cmd_show_list (struct cmd_list_element
*list
, int from_tty
, char *prefix
)
394 struct cleanup
*showlist_chain
;
396 showlist_chain
= make_cleanup_ui_out_tuple_begin_end (uiout
, "showlist");
397 for (; list
!= NULL
; list
= list
->next
)
399 /* If we find a prefix, run its list, prefixing our output by its
400 prefix (with "show " skipped). */
401 if (list
->prefixlist
&& !list
->abbrev_flag
)
403 struct cleanup
*optionlist_chain
404 = make_cleanup_ui_out_tuple_begin_end (uiout
, "optionlist");
405 char *new_prefix
= strstr (list
->prefixname
, "show ") + 5;
406 if (ui_out_is_mi_like_p (uiout
))
407 ui_out_field_string (uiout
, "prefix", new_prefix
);
408 cmd_show_list (*list
->prefixlist
, from_tty
, new_prefix
);
409 /* Close the tuple. */
410 do_cleanups (optionlist_chain
);
412 if (list
->type
== show_cmd
)
414 struct cleanup
*option_chain
415 = make_cleanup_ui_out_tuple_begin_end (uiout
, "option");
416 ui_out_text (uiout
, prefix
);
417 ui_out_field_string (uiout
, "name", list
->name
);
418 ui_out_text (uiout
, ": ");
419 do_setshow_command ((char *) NULL
, from_tty
, list
);
420 /* Close the tuple. */
421 do_cleanups (option_chain
);
424 /* Close the tuple. */
425 do_cleanups (showlist_chain
);
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