266 lines
9.2 KiB
C
266 lines
9.2 KiB
C
/* Header file for command-reading library command.c.
|
|
Copyright (C) 1986, 1989, 1990 Free Software Foundation, Inc.
|
|
|
|
This program is free software; you can redistribute it and/or modify
|
|
it under the terms of the GNU General Public License as published by
|
|
the Free Software Foundation; either version 2 of the License, or
|
|
(at your option) any later version.
|
|
|
|
This program is distributed in the hope that it will be useful,
|
|
but WITHOUT ANY WARRANTY; without even the implied warranty of
|
|
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
|
|
GNU General Public License for more details.
|
|
|
|
You should have received a copy of the GNU General Public License
|
|
along with this program; if not, write to the Free Software
|
|
Foundation, Inc., 59 Temple Place - Suite 330,
|
|
Boston, MA 02111-1307, USA. */
|
|
|
|
#if !defined (COMMAND_H)
|
|
#define COMMAND_H 1
|
|
|
|
/* Not a set/show command. Note that some commands which begin with
|
|
"set" or "show" might be in this category, if their syntax does
|
|
not fall into one of the following categories. */
|
|
typedef enum cmd_types
|
|
{
|
|
not_set_cmd,
|
|
set_cmd,
|
|
show_cmd
|
|
}
|
|
cmd_types;
|
|
|
|
/* Types of "set" or "show" command. */
|
|
typedef enum var_types
|
|
{
|
|
/* "on" or "off". *VAR is an integer which is nonzero for on,
|
|
zero for off. */
|
|
var_boolean,
|
|
/* Unsigned Integer. *VAR is an unsigned int. The user can type 0
|
|
to mean "unlimited", which is stored in *VAR as UINT_MAX. */
|
|
var_uinteger,
|
|
|
|
/* Like var_uinteger but signed. *VAR is an int. The user can type 0
|
|
to mean "unlimited", which is stored in *VAR as INT_MAX. */
|
|
var_integer,
|
|
|
|
/* String which the user enters with escapes (e.g. the user types \n and
|
|
it is a real newline in the stored string).
|
|
*VAR is a malloc'd string, or NULL if the string is empty. */
|
|
var_string,
|
|
/* String which stores what the user types verbatim.
|
|
*VAR is a malloc'd string, or NULL if the string is empty. */
|
|
var_string_noescape,
|
|
/* String which stores a filename.
|
|
*VAR is a malloc'd string, or NULL if the string is empty. */
|
|
var_filename,
|
|
/* ZeroableInteger. *VAR is an int. Like Unsigned Integer except
|
|
that zero really means zero. */
|
|
var_zinteger,
|
|
/* Enumerated type. Can only have one of the specified values. *VAR is a
|
|
char pointer to the name of the element that we find. */
|
|
var_enum
|
|
}
|
|
var_types;
|
|
|
|
/* This structure records one command'd definition. */
|
|
|
|
struct cmd_list_element
|
|
{
|
|
/* Points to next command in this list. */
|
|
struct cmd_list_element *next;
|
|
|
|
/* Name of this command. */
|
|
char *name;
|
|
|
|
/* Command class; class values are chosen by application program. */
|
|
enum command_class class;
|
|
|
|
/* Function definition of this command.
|
|
NO_FUNCTION for command class names and for help topics that
|
|
are not really commands. */
|
|
union
|
|
{
|
|
/* If type is not_set_cmd, call it like this: */
|
|
void (*cfunc) PARAMS ((char *args, int from_tty));
|
|
|
|
/* If type is cmd_set or show_cmd, first set the variables, and
|
|
then call this. */
|
|
void (*sfunc) PARAMS ((char *args, int from_tty,
|
|
struct cmd_list_element * c));
|
|
}
|
|
function;
|
|
#define NO_FUNCTION ((void (*) PARAMS((char *args, int from_tty))) 0)
|
|
|
|
/* Documentation of this command (or help topic).
|
|
First line is brief documentation; remaining lines form, with it,
|
|
the full documentation. First line should end with a period.
|
|
Entire string should also end with a period, not a newline. */
|
|
char *doc;
|
|
|
|
/* Hook for another command to be executed before this command. */
|
|
struct cmd_list_element *hook;
|
|
|
|
/* Nonzero identifies a prefix command. For them, the address
|
|
of the variable containing the list of subcommands. */
|
|
struct cmd_list_element **prefixlist;
|
|
|
|
/* For prefix commands only:
|
|
String containing prefix commands to get here: this one
|
|
plus any others needed to get to it. Should end in a space.
|
|
It is used before the word "command" in describing the
|
|
commands reached through this prefix. */
|
|
char *prefixname;
|
|
|
|
/* For prefix commands only:
|
|
nonzero means do not get an error if subcommand is not
|
|
recognized; call the prefix's own function in that case. */
|
|
char allow_unknown;
|
|
|
|
/* Nonzero says this is an abbreviation, and should not
|
|
be mentioned in lists of commands.
|
|
This allows "br<tab>" to complete to "break", which it
|
|
otherwise wouldn't. */
|
|
char abbrev_flag;
|
|
|
|
/* Completion routine for this command. TEXT is the text beyond
|
|
what was matched for the command itself (leading whitespace is
|
|
skipped). It stops where we are supposed to stop completing
|
|
(rl_point) and is '\0' terminated.
|
|
|
|
Return value is a malloc'd vector of pointers to possible completions
|
|
terminated with NULL. If there are no completions, returning a pointer
|
|
to a NULL would work but returning NULL itself is also valid.
|
|
WORD points in the same buffer as TEXT, and completions should be
|
|
returned relative to this position. For example, suppose TEXT is "foo"
|
|
and we want to complete to "foobar". If WORD is "oo", return
|
|
"oobar"; if WORD is "baz/foo", return "baz/foobar". */
|
|
char **(*completer) PARAMS ((char *text, char *word));
|
|
|
|
/* Type of "set" or "show" command (or SET_NOT_SET if not "set"
|
|
or "show"). */
|
|
cmd_types type;
|
|
|
|
/* Pointer to variable affected by "set" and "show". Doesn't matter
|
|
if type is not_set. */
|
|
char *var;
|
|
|
|
/* What kind of variable is *VAR? */
|
|
var_types var_type;
|
|
|
|
/* Pointer to NULL terminated list of enumerated values (like argv). */
|
|
char **enums;
|
|
|
|
/* Pointer to command strings of user-defined commands */
|
|
struct command_line *user_commands;
|
|
|
|
/* Pointer to command that is hooked by this one,
|
|
so the hook can be removed when this one is deleted. */
|
|
struct cmd_list_element *hookee;
|
|
|
|
/* Pointer to command that is aliased by this one, so the
|
|
aliased command can be located in case it has been hooked. */
|
|
struct cmd_list_element *cmd_pointer;
|
|
};
|
|
|
|
/* Forward-declarations of the entry-points of command.c. */
|
|
|
|
extern struct cmd_list_element *
|
|
add_cmd PARAMS ((char *, enum command_class, void (*fun) (char *, int),
|
|
char *, struct cmd_list_element **));
|
|
|
|
extern struct cmd_list_element *
|
|
add_alias_cmd PARAMS ((char *, char *, enum command_class, int,
|
|
struct cmd_list_element **));
|
|
|
|
extern struct cmd_list_element *
|
|
add_prefix_cmd PARAMS ((char *, enum command_class, void (*fun) (char *, int),
|
|
char *, struct cmd_list_element **, char *, int,
|
|
struct cmd_list_element **));
|
|
|
|
extern struct cmd_list_element *
|
|
add_abbrev_prefix_cmd PARAMS ((char *, enum command_class,
|
|
void (*fun) (char *, int), char *,
|
|
struct cmd_list_element **, char *, int,
|
|
struct cmd_list_element **));
|
|
|
|
extern struct cmd_list_element *
|
|
lookup_cmd PARAMS ((char **, struct cmd_list_element *, char *, int, int));
|
|
|
|
extern struct cmd_list_element *
|
|
lookup_cmd_1 PARAMS ((char **, struct cmd_list_element *,
|
|
struct cmd_list_element **, int));
|
|
|
|
extern void
|
|
add_com PARAMS ((char *, enum command_class, void (*fun) (char *, int),
|
|
char *));
|
|
|
|
extern void
|
|
add_com_alias PARAMS ((char *, char *, enum command_class, int));
|
|
|
|
extern void
|
|
add_info PARAMS ((char *, void (*fun) (char *, int), char *));
|
|
|
|
extern void
|
|
add_info_alias PARAMS ((char *, char *, int));
|
|
|
|
extern char **
|
|
complete_on_cmdlist PARAMS ((struct cmd_list_element *, char *, char *));
|
|
|
|
extern char **
|
|
complete_on_enum PARAMS ((char **enumlist, char *, char *));
|
|
|
|
extern void
|
|
delete_cmd PARAMS ((char *, struct cmd_list_element **));
|
|
|
|
extern void
|
|
help_cmd PARAMS ((char *, GDB_FILE *));
|
|
|
|
extern void
|
|
help_list PARAMS ((struct cmd_list_element *, char *, enum command_class,
|
|
GDB_FILE *));
|
|
|
|
extern void
|
|
help_cmd_list PARAMS ((struct cmd_list_element *, enum command_class, char *,
|
|
int, GDB_FILE *));
|
|
|
|
extern struct cmd_list_element *
|
|
add_set_cmd PARAMS ((char *, enum command_class, var_types, char *, char *,
|
|
struct cmd_list_element **));
|
|
|
|
extern struct cmd_list_element *
|
|
add_set_enum_cmd PARAMS ((char *name, enum command_class, char *list[],
|
|
char *var, char *doc, struct cmd_list_element ** c));
|
|
|
|
extern struct cmd_list_element *
|
|
add_show_from_set PARAMS ((struct cmd_list_element *,
|
|
struct cmd_list_element **));
|
|
|
|
/* Do a "set" or "show" command. ARG is NULL if no argument, or the text
|
|
of the argument, and FROM_TTY is nonzero if this command is being entered
|
|
directly by the user (i.e. these are just like any other
|
|
command). C is the command list element for the command. */
|
|
|
|
extern void
|
|
do_setshow_command PARAMS ((char *, int, struct cmd_list_element *));
|
|
|
|
/* Do a "show" command for each thing on a command list. */
|
|
|
|
extern void
|
|
cmd_show_list PARAMS ((struct cmd_list_element *, int, char *));
|
|
|
|
extern void
|
|
error_no_arg PARAMS ((char *));
|
|
|
|
extern void
|
|
dont_repeat PARAMS ((void));
|
|
|
|
/* Used to mark commands that don't do anything. If we just leave the
|
|
function field NULL, the command is interpreted as a help topic, or
|
|
as a class of commands. */
|
|
|
|
extern void
|
|
not_just_help_class_command PARAMS ((char *, int));
|
|
|
|
#endif /* !defined (COMMAND_H) */
|