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https://github.com/libretro/scummvm.git
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88 lines
2.3 KiB
C++
88 lines
2.3 KiB
C++
/* ScummVM - Graphic Adventure Engine
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*
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* ScummVM is the legal property of its developers, whose names
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* are too numerous to list here. Please refer to the COPYRIGHT
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* file distributed with this source distribution.
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*
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* This program is free software; you can redistribute it and/or
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* modify it under the terms of the GNU General Public License
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* as published by the Free Software Foundation; either version 2
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* of the License, or (at your option) any later version.
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*
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* This program is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU General Public License for more details.
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*
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* You should have received a copy of the GNU General Public License
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* along with this program; if not, write to the Free Software
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* Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.
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*
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*/
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#ifndef SLUDGE_UTF8_H
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#define SLUDGE_UTF8_H
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#include "common/system.h"
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#include "common/ustr.h"
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namespace Sludge {
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class UTF8Converter {
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private:
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static const uint32 offsetsFromUTF8[6];
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/**
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* we assume one character in a Common::String is one byte
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* but in this case it's actually an UTF-8 string
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*/
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Common::String _str;
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/**
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* wrap a converted U32String
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*/
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Common::U32String _str32;
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/** A tool function for string conversion
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* return next character, updating an index variable
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*/
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static uint32 nextchar(const char *s, int *i);
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/** A tool function for string conversion
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* is this byte the start of a utf8 sequence?
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*/
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static inline bool isutf(char c) { return (((c)&0xC0)!=0x80); }
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public:
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/** Construct a new empty string. */
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UTF8Converter() {};
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/** Construct a UTF8String with original char array to convert */
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UTF8Converter(const char *data);
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/** U32 character index to origin char offset */
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int getOriginOffset(int origIdx);
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/**
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* set a char array to this UTF8String
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*/
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void setUTF8String(Common::String str);
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/**
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* get converted U32String
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*/
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Common::U32String getU32String() const { return _str32; };
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/**
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* get origin UTF8String
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*/
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Common::String getUTF8String() const { return _str; };
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/** Convert UTF8 String to UTF32 String
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*/
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static Common::U32String convertUtf8ToUtf32(const Common::String &str);
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};
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} // End of namespace Sludge
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#endif
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