135 lines
2.5 KiB
C++
135 lines
2.5 KiB
C++
/*
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*******************************************************************************
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*
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* Copyright (C) 1999-2001, International Business Machines
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* Corporation and others. All Rights Reserved.
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*
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*******************************************************************************
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* file name: scrptrun.h
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*
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* created on: 10/17/2001
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* created by: Eric R. Mader
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*/
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#ifndef __SCRPTRUN_H
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#define __SCRPTRUN_H
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#include "unicode/utypes.h"
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#include "unicode/uscript.h"
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struct ScriptRecord
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{
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UChar32 startChar;
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UChar32 endChar;
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UScriptCode scriptCode;
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};
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struct ParenStackEntry
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{
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int32_t pairIndex;
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UScriptCode scriptCode;
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};
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class ScriptRun
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{
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public:
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ScriptRun();
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ScriptRun(const UChar chars[], int32_t length);
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ScriptRun(const UChar chars[], int32_t start, int32_t length);
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void reset();
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void reset(int32_t start, int32_t count);
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void reset(const UChar chars[], int32_t start, int32_t length);
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int32_t getScriptStart();
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int32_t getScriptEnd();
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UScriptCode getScriptCode();
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UBool next();
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private:
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static UBool sameScript(int32_t scriptOne, int32_t scriptTwo);
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int32_t charStart;
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int32_t charLimit;
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const UChar *charArray;
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int32_t scriptStart;
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int32_t scriptEnd;
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UScriptCode scriptCode;
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ParenStackEntry parenStack[128];
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int32_t parenSP;
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static int8_t highBit(int32_t value);
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static int32_t getPairIndex(UChar32 ch);
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static UChar32 pairedChars[];
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static const int32_t pairedCharCount;
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static const int32_t pairedCharPower;
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static const int32_t pairedCharExtra;
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};
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inline ScriptRun::ScriptRun()
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{
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reset(NULL, 0, 0);
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}
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inline ScriptRun::ScriptRun(const UChar chars[], int32_t length)
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{
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reset(chars, 0, length);
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}
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inline ScriptRun::ScriptRun(const UChar chars[], int32_t start, int32_t length)
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{
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reset(chars, start, length);
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}
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inline int32_t ScriptRun::getScriptStart()
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{
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return scriptStart;
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}
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inline int32_t ScriptRun::getScriptEnd()
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{
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return scriptEnd;
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}
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inline UScriptCode ScriptRun::getScriptCode()
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{
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return scriptCode;
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}
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inline void ScriptRun::reset()
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{
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scriptStart = charStart;
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scriptEnd = charStart;
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scriptCode = USCRIPT_INVALID_CODE;
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parenSP = -1;
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}
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inline void ScriptRun::reset(int32_t start, int32_t length)
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{
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charStart = start;
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charLimit = start + length;
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reset();
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}
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inline void ScriptRun::reset(const UChar chars[], int32_t start, int32_t length)
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{
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charArray = chars;
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reset(start, length);
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}
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#endif
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