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/* Header file for command-reading library command.c.
Copyright (C) 1986, 1989 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. */
/* 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. */
int class;
/* Function definition of this command.
Zero for command class names and for help topics that
are not really commands. */
void (*function) ();
/* 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;
};
/* 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 *lookup_cmd (), *lookup_cmd_1 ();
extern char **complete_on_cmdlist ();
extern void delete_cmd ();
extern void help_cmd ();
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