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authorStan Shebs <shebs@codesourcery.com>1999-04-16 01:34:07 +0000
committerStan Shebs <shebs@codesourcery.com>1999-04-16 01:34:07 +0000
commit071ea11e85eb9d529cc5eb3d35f6247466a21b99 (patch)
tree5deda65b8d7b04d1f4cbc534c3206d328e1267ec /gdb/command.h
parent1730ec6b1848f0f32154277f788fb29f88d8475b (diff)
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-/* 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 1, 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., 675 Mass Ave, Cambridge, MA 02139, USA. */
-
-#ifndef _COMMAND_H_INCLUDED
-#define _COMMAND_H_INCLUDED
-
-/* 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,
- /* 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,
-} 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.
- Zero for command class names and for help topics that
- are not really commands. */
- void (*function) ();
-# define NO_FUNCTION ((void (*)()) 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;
-
- /* Auxiliary information.
- It is up to the calling program to decide what this means. */
- char *aux;
-
- /* 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. */
- char **(*completer)();
-
- /* 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 command strings of user-defined commands */
- struct command_line *user_commands;
- };
-
-/* Forward-declarations of the entry-points of command.c. */
-
-extern struct cmd_list_element *add_cmd ();
-extern struct cmd_list_element *add_alias_cmd ();
-extern struct cmd_list_element *add_prefix_cmd ();
-extern struct cmd_list_element *add_abbrev_prefix_cmd ();
-extern struct cmd_list_element *lookup_cmd (), *lookup_cmd_1 ();
-extern void add_com ();
-extern void add_com_alias ();
-extern void add_info ();
-extern void add_info_alias ();
-extern char **complete_on_cmdlist ();
-extern void delete_cmd ();
-extern void help_cmd ();
-extern struct cmd_list_element *add_set_cmd ();
-extern struct cmd_list_element *add_show_from_set ();
-
-/* 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 ();
-
-/* Do a "show" command for each thing on a command list. */
-extern void cmd_show_list ();
-
-extern void error_no_arg (); /* Print error for missing argument */
-extern void dont_repeat (); /* Avoid auto-repeat of command */
-
-#endif /* _COMMAND_H_INCLUDED */