utf8_reader.h

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00001 /*
00002 **  ClanLib SDK
00003 **  Copyright (c) 1997-2011 The ClanLib Team
00004 **
00005 **  This software is provided 'as-is', without any express or implied
00006 **  warranty.  In no event will the authors be held liable for any damages
00007 **  arising from the use of this software.
00008 **
00009 **  Permission is granted to anyone to use this software for any purpose,
00010 **  including commercial applications, and to alter it and redistribute it
00011 **  freely, subject to the following restrictions:
00012 **
00013 **  1. The origin of this software must not be misrepresented; you must not
00014 **     claim that you wrote the original software. If you use this software
00015 **     in a product, an acknowledgment in the product documentation would be
00016 **     appreciated but is not required.
00017 **  2. Altered source versions must be plainly marked as such, and must not be
00018 **     misrepresented as being the original software.
00019 **  3. This notice may not be removed or altered from any source distribution.
00020 **
00021 **  Note: Some of the libraries ClanLib may link to may have additional
00022 **  requirements or restrictions.
00023 **
00024 **  File Author(s):
00025 **
00026 **   Mark Page
00027 */
00028 
00029 #pragma once
00030 
00033 
00034 #include "../api_core.h"
00035 #include "../System/sharedptr.h"
00036 #include "string_types.h"
00037 
00038 class CL_UTF8_Reader_Impl;
00039 
00043 class CL_API_CORE CL_UTF8_Reader
00044 {
00045 public:
00048         CL_UTF8_Reader(const CL_StringRef8 &text);
00049 
00053 
00054 public:
00056         bool is_end();
00057 
00059         unsigned int get_char();
00060 
00062         CL_String8::size_type get_char_length();
00063 
00065         void prev();
00066 
00068         void next();
00069 
00071         void move_to_leadbyte();
00072 
00074         CL_String8::size_type get_position();
00075 
00077         void set_position(CL_String8::size_type position);
00078 
00082 
00083 private:
00084         CL_SharedPtr<CL_UTF8_Reader_Impl> impl;
00086 };