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Location: cpp/openttd-patchpack/source/src/string_base.h - annotation
r27487:4d1c2a7bde00
2.1 KiB
text/x-c
Codechange: remove queue_wrap / last_position from mouse movement
No backend uses it anymore, so also no longer any need to support
it.
No backend uses it anymore, so also no longer any need to support
it.
r20614:4513b7ad6147 r20614:4513b7ad6147 r20614:4513b7ad6147 r20614:4513b7ad6147 r20614:4513b7ad6147 r20614:4513b7ad6147 r20614:4513b7ad6147 r20614:4513b7ad6147 r20614:4513b7ad6147 r20614:4513b7ad6147 r20614:4513b7ad6147 r20614:4513b7ad6147 r20614:4513b7ad6147 r20614:4513b7ad6147 r20614:4513b7ad6147 r20615:a9017d659ca9 r20615:a9017d659ca9 r20615:a9017d659ca9 r20615:a9017d659ca9 r20615:a9017d659ca9 r20615:a9017d659ca9 r20614:4513b7ad6147 r20614:4513b7ad6147 r20614:4513b7ad6147 r20614:4513b7ad6147 r20614:4513b7ad6147 r20614:4513b7ad6147 r20614:4513b7ad6147 r26745:baeac55e5810 r20614:4513b7ad6147 r27372:06d384d76bd2 r20614:4513b7ad6147 r20614:4513b7ad6147 r20614:4513b7ad6147 r20614:4513b7ad6147 r20614:4513b7ad6147 r20614:4513b7ad6147 r20614:4513b7ad6147 r20614:4513b7ad6147 r20614:4513b7ad6147 r20614:4513b7ad6147 r23023:7b8669afd1db r20614:4513b7ad6147 r23023:7b8669afd1db r20614:4513b7ad6147 r20614:4513b7ad6147 r20614:4513b7ad6147 r20614:4513b7ad6147 r20614:4513b7ad6147 r20614:4513b7ad6147 r20614:4513b7ad6147 r20615:a9017d659ca9 r20614:4513b7ad6147 r20614:4513b7ad6147 r20614:4513b7ad6147 r20614:4513b7ad6147 r20614:4513b7ad6147 r20615:a9017d659ca9 r20614:4513b7ad6147 r20614:4513b7ad6147 r20614:4513b7ad6147 r20614:4513b7ad6147 r20614:4513b7ad6147 r20614:4513b7ad6147 | /*
* This file is part of OpenTTD.
* OpenTTD 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, version 2.
* OpenTTD 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 OpenTTD. If not, see <http://www.gnu.org/licenses/>.
*/
#ifndef STRING_BASE_H
#define STRING_BASE_H
#include "string_type.h"
/** Class for iterating over different kind of parts of a string. */
class StringIterator {
public:
/** Type of the iterator. */
enum IterType {
ITER_CHARACTER, ///< Iterate over characters (or more exactly grapheme clusters).
ITER_WORD, ///< Iterate over words.
};
/** Sentinel to indicate end-of-iteration. */
static const size_t END = SIZE_MAX;
/**
* Create a new iterator instance.
* @return New iterator instance.
*/
static std::unique_ptr<StringIterator> Create();
virtual ~StringIterator() = default;
/**
* Set a new iteration string. Must also be called if the string contents
* changed. The cursor is reset to the start of the string.
* @param s New string.
*/
virtual void SetString(const char *s) = 0;
/**
* Change the current string cursor.
* @param pos New cursor position.
* @return Actual new cursor position at the next valid character boundary.
* @pre pos has to be inside the current string.
*/
virtual size_t SetCurPosition(size_t pos) = 0;
/**
* Advance the cursor by one iteration unit.
* @return New cursor position (in bytes) or #END if the cursor is already at the end of the string.
*/
virtual size_t Next(IterType what = ITER_CHARACTER) = 0;
/**
* Move the cursor back by one iteration unit.
* @return New cursor position (in bytes) or #END if the cursor is already at the start of the string.
*/
virtual size_t Prev(IterType what = ITER_CHARACTER) = 0;
protected:
StringIterator() {}
};
#endif /* STRING_BASE_H */
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