mirror of
https://github.com/libretro/scummvm.git
synced 2024-12-14 21:59:17 +00:00
98 lines
3.9 KiB
C++
98 lines
3.9 KiB
C++
/* 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 3 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, see <http://www.gnu.org/licenses/>.
|
|
*
|
|
*/
|
|
|
|
#ifndef COMMON_TOKENIZER_H
|
|
#define COMMON_TOKENIZER_H
|
|
|
|
#include "common/scummsys.h"
|
|
#include "common/str.h"
|
|
#include "common/ustr.h"
|
|
|
|
namespace Common {
|
|
|
|
/**
|
|
* @defgroup common_tokenizer String tokenizer
|
|
* @ingroup common
|
|
*
|
|
* @brief String tokenizer for creating tokens out of parts of a string.
|
|
*
|
|
* @{
|
|
*/
|
|
|
|
/**
|
|
* 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)
|
|
};
|
|
|
|
/**
|
|
* A simple non-optimized unicode-string tokenizer.
|
|
*
|
|
* Example of use:
|
|
* U32StringTokenizer("Now, this is a test!", " ,!") gives tokens "Now", "this", "is", "a" and "test" using nextToken().
|
|
* Using non-ascii chars will also work, and is recommended to use this over StringTokenizer if string contains unicode chars.
|
|
*/
|
|
class U32StringTokenizer {
|
|
public:
|
|
/**
|
|
* Creates a UnicodeStringTokenizer.
|
|
* @param str The unicode 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.
|
|
*/
|
|
U32StringTokenizer(const U32String &str, const String &delimiters = " \t\r\n\f\v");
|
|
void reset(); ///< Resets the tokenizer to its initial state, i.e points boten token iterators to the beginning
|
|
bool empty() const; ///< Returns true if there are no more tokens left in the string, false otherwise
|
|
U32String nextToken(); ///< Returns the next token from the string (Or an empty string if there are no more tokens)
|
|
|
|
private:
|
|
const U32String _str; ///< The unicode string to be tokenized
|
|
const String _delimiters; ///< String containing all the delimiter characters
|
|
U32String::const_iterator _tokenBegin; ///< Latest found token's begin iterator (Valid after a call to nextToken())
|
|
U32String::const_iterator _tokenEnd; ///< Latest found token's end iterator (Valid after a call to nextToken())
|
|
};
|
|
|
|
/** @} */
|
|
|
|
} // End of namespace Common
|
|
|
|
#endif
|