CmdArgs.h (3328B)
1 /* 2 =========================================================================== 3 4 Doom 3 BFG Edition GPL Source Code 5 Copyright (C) 1993-2012 id Software LLC, a ZeniMax Media company. 6 7 This file is part of the Doom 3 BFG Edition GPL Source Code ("Doom 3 BFG Edition Source Code"). 8 9 Doom 3 BFG Edition Source Code is free software: you can redistribute it and/or modify 10 it under the terms of the GNU General Public License as published by 11 the Free Software Foundation, either version 3 of the License, or 12 (at your option) any later version. 13 14 Doom 3 BFG Edition Source Code is distributed in the hope that it will be useful, 15 but WITHOUT ANY WARRANTY; without even the implied warranty of 16 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the 17 GNU General Public License for more details. 18 19 You should have received a copy of the GNU General Public License 20 along with Doom 3 BFG Edition Source Code. If not, see <http://www.gnu.org/licenses/>. 21 22 In addition, the Doom 3 BFG Edition 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 BFG Edition Source Code. If not, please request a copy in writing from id Software at the address below. 23 24 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. 25 26 =========================================================================== 27 */ 28 29 #ifndef __CMDARGS_H__ 30 #define __CMDARGS_H__ 31 32 /* 33 =============================================================================== 34 35 Command arguments. 36 37 =============================================================================== 38 */ 39 40 class idCmdArgs { 41 public: 42 idCmdArgs() { argc = 0; } 43 idCmdArgs( const char *text, bool keepAsStrings ) { TokenizeString( text, keepAsStrings ); } 44 45 void operator=( const idCmdArgs &args ); 46 47 // The functions that execute commands get their parameters with these functions. 48 int Argc() const { return argc; } 49 // Argv() will return an empty string, not NULL if arg >= argc. 50 const char * Argv( int arg ) const { return ( arg >= 0 && arg < argc ) ? argv[arg] : ""; } 51 // Returns a single string containing argv(start) to argv(end) 52 // escapeArgs is a fugly way to put the string back into a state ready to tokenize again 53 const char * Args( int start = 1, int end = -1, bool escapeArgs = false ) const; 54 55 // Takes a null terminated string and breaks the string up into arg tokens. 56 // Does not need to be /n terminated. 57 // Set keepAsStrings to true to only seperate tokens from whitespace and comments, ignoring punctuation 58 void TokenizeString( const char *text, bool keepAsStrings ); 59 60 void AppendArg( const char *text ); 61 void Clear() { argc = 0; } 62 const char * const * GetArgs( int *argc ); 63 64 private: 65 static const int MAX_COMMAND_ARGS = 64; 66 static const int MAX_COMMAND_STRING = 2 * MAX_STRING_CHARS; 67 68 int argc; // number of arguments 69 char * argv[MAX_COMMAND_ARGS]; // points into tokenized 70 char tokenized[MAX_COMMAND_STRING]; // will have 0 bytes inserted 71 }; 72 73 #endif /* !__CMDARGS_H__ */