dhewm3-sdk/idlib/CmdArgs.h

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2011-11-22 21:28:15 +00:00
/*
===========================================================================
Doom 3 GPL Source Code
Copyright (C) 1999-2011 id Software LLC, a ZeniMax Media company.
This file is part of the Doom 3 GPL Source Code (?Doom 3 Source Code?).
Doom 3 Source Code 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 3 of the License, or
(at your option) any later version.
Doom 3 Source Code 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 Doom 3 Source Code. If not, see <http://www.gnu.org/licenses/>.
In addition, the Doom 3 Source Code is also subject to certain additional terms. You should have received a copy of these additional terms immediately following the terms and conditions of the GNU General Public License which accompanied the Doom 3 Source Code. If not, please request a copy in writing from id Software at the address below.
If you have questions concerning this license or the applicable additional terms, you may contact in writing id Software LLC, c/o ZeniMax Media Inc., Suite 120, Rockville, Maryland 20850 USA.
===========================================================================
*/
#ifndef __CMDARGS_H__
#define __CMDARGS_H__
/*
===============================================================================
Command arguments.
===============================================================================
*/
class idCmdArgs {
public:
idCmdArgs( void ) { argc = 0; }
idCmdArgs( const char *text, bool keepAsStrings ) { TokenizeString( text, keepAsStrings ); }
void operator=( const idCmdArgs &args );
// The functions that execute commands get their parameters with these functions.
int Argc( void ) const { return argc; }
// Argv() will return an empty string, not NULL if arg >= argc.
const char * Argv( int arg ) const { return ( arg >= 0 && arg < argc ) ? argv[arg] : ""; }
// Returns a single string containing argv(start) to argv(end)
// escapeArgs is a fugly way to put the string back into a state ready to tokenize again
const char * Args( int start = 1, int end = -1, bool escapeArgs = false ) const;
// Takes a null terminated string and breaks the string up into arg tokens.
// Does not need to be /n terminated.
// Set keepAsStrings to true to only seperate tokens from whitespace and comments, ignoring punctuation
void TokenizeString( const char *text, bool keepAsStrings );
void AppendArg( const char *text );
void Clear( void ) { argc = 0; }
const char ** GetArgs( int *argc );
private:
static const int MAX_COMMAND_ARGS = 64;
static const int MAX_COMMAND_STRING = 2 * MAX_STRING_CHARS;
int argc; // number of arguments
char * argv[MAX_COMMAND_ARGS]; // points into tokenized
char tokenized[MAX_COMMAND_STRING]; // will have 0 bytes inserted
};
#endif /* !__CMDARGS_H__ */