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/* ScummVM - Graphic Adventure Engine
*
* ScummVM is the legal property of its developers, whose names
* are too numerous to list here. Please refer to the COPYRIGHT
* file distributed with this source distribution.
*
* 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., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.
*
*/
#ifndef COMMON_TOKENIZER_H
#define COMMON_TOKENIZER_H
#include "common/scummsys.h"
#include "common/str.h"
namespace Common {
/**
* A simple non-optimized string tokenizer.
*
* Example of use:
* StringTokenizer("Now, this is a test!", " ,!") gives tokens "Now", "this", "is", "a" and "test" using nextToken().
*/
class StringTokenizer {
public:
/**
* Creates a StringTokenizer.
* @param str The string to be tokenized.
* @param delimiters String containing all the delimiter characters (i.e. the characters to be ignored).
* @note Uses space, horizontal tab, carriage return, newline, form feed and vertical tab as delimiters by default.
*/
StringTokenizer(const String &str, const String &delimiters = " \t\r\n\f\v");
void reset(); ///< Resets the tokenizer to its initial state
bool empty() const; ///< Returns true if there are no more tokens left in the string, false otherwise
String nextToken(); ///< Returns the next token from the string (Or an empty string if there are no more tokens)
private:
const String _str; ///< The string to be tokenized
const String _delimiters; ///< String containing all the delimiter characters
uint _tokenBegin; ///< Latest found token's begin (Valid after a call to nextToken(), zero otherwise)
uint _tokenEnd; ///< Latest found token's end (Valid after a call to nextToken(), zero otherwise)
};
} // End of namespace Common
#endif
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