1.1 --- /dev/null Thu Jan 01 00:00:00 1970 +0000
1.2 +++ b/intl/icu/source/extra/scrptrun/scrptrun.h Wed Dec 31 06:09:35 2014 +0100
1.3 @@ -0,0 +1,154 @@
1.4 +/*
1.5 + *******************************************************************************
1.6 + *
1.7 + * Copyright (C) 1999-2003, International Business Machines
1.8 + * Corporation and others. All Rights Reserved.
1.9 + *
1.10 + *******************************************************************************
1.11 + * file name: scrptrun.h
1.12 + *
1.13 + * created on: 10/17/2001
1.14 + * created by: Eric R. Mader
1.15 + */
1.16 +
1.17 +#ifndef __SCRPTRUN_H
1.18 +#define __SCRPTRUN_H
1.19 +
1.20 +#include "unicode/utypes.h"
1.21 +#include "unicode/uobject.h"
1.22 +#include "unicode/uscript.h"
1.23 +
1.24 +struct ScriptRecord
1.25 +{
1.26 + UChar32 startChar;
1.27 + UChar32 endChar;
1.28 + UScriptCode scriptCode;
1.29 +};
1.30 +
1.31 +struct ParenStackEntry
1.32 +{
1.33 + int32_t pairIndex;
1.34 + UScriptCode scriptCode;
1.35 +};
1.36 +
1.37 +class ScriptRun : public UObject {
1.38 +public:
1.39 + ScriptRun();
1.40 +
1.41 + ScriptRun(const UChar chars[], int32_t length);
1.42 +
1.43 + ScriptRun(const UChar chars[], int32_t start, int32_t length);
1.44 +
1.45 + void reset();
1.46 +
1.47 + void reset(int32_t start, int32_t count);
1.48 +
1.49 + void reset(const UChar chars[], int32_t start, int32_t length);
1.50 +
1.51 + int32_t getScriptStart();
1.52 +
1.53 + int32_t getScriptEnd();
1.54 +
1.55 + UScriptCode getScriptCode();
1.56 +
1.57 + UBool next();
1.58 +
1.59 + /**
1.60 + * ICU "poor man's RTTI", returns a UClassID for the actual class.
1.61 + *
1.62 + * @stable ICU 2.2
1.63 + */
1.64 + virtual inline UClassID getDynamicClassID() const { return getStaticClassID(); }
1.65 +
1.66 + /**
1.67 + * ICU "poor man's RTTI", returns a UClassID for this class.
1.68 + *
1.69 + * @stable ICU 2.2
1.70 + */
1.71 + static inline UClassID getStaticClassID() { return (UClassID)&fgClassID; }
1.72 +
1.73 +private:
1.74 +
1.75 + static UBool sameScript(int32_t scriptOne, int32_t scriptTwo);
1.76 +
1.77 + int32_t charStart;
1.78 + int32_t charLimit;
1.79 + const UChar *charArray;
1.80 +
1.81 + int32_t scriptStart;
1.82 + int32_t scriptEnd;
1.83 + UScriptCode scriptCode;
1.84 +
1.85 + ParenStackEntry parenStack[128];
1.86 + int32_t parenSP;
1.87 +
1.88 + static int8_t highBit(int32_t value);
1.89 + static int32_t getPairIndex(UChar32 ch);
1.90 +
1.91 + static UChar32 pairedChars[];
1.92 + static const int32_t pairedCharCount;
1.93 + static const int32_t pairedCharPower;
1.94 + static const int32_t pairedCharExtra;
1.95 +
1.96 + /**
1.97 + * The address of this static class variable serves as this class's ID
1.98 + * for ICU "poor man's RTTI".
1.99 + */
1.100 + static const char fgClassID;
1.101 +};
1.102 +
1.103 +inline ScriptRun::ScriptRun()
1.104 +{
1.105 + reset(NULL, 0, 0);
1.106 +}
1.107 +
1.108 +inline ScriptRun::ScriptRun(const UChar chars[], int32_t length)
1.109 +{
1.110 + reset(chars, 0, length);
1.111 +}
1.112 +
1.113 +inline ScriptRun::ScriptRun(const UChar chars[], int32_t start, int32_t length)
1.114 +{
1.115 + reset(chars, start, length);
1.116 +}
1.117 +
1.118 +inline int32_t ScriptRun::getScriptStart()
1.119 +{
1.120 + return scriptStart;
1.121 +}
1.122 +
1.123 +inline int32_t ScriptRun::getScriptEnd()
1.124 +{
1.125 + return scriptEnd;
1.126 +}
1.127 +
1.128 +inline UScriptCode ScriptRun::getScriptCode()
1.129 +{
1.130 + return scriptCode;
1.131 +}
1.132 +
1.133 +inline void ScriptRun::reset()
1.134 +{
1.135 + scriptStart = charStart;
1.136 + scriptEnd = charStart;
1.137 + scriptCode = USCRIPT_INVALID_CODE;
1.138 + parenSP = -1;
1.139 +}
1.140 +
1.141 +inline void ScriptRun::reset(int32_t start, int32_t length)
1.142 +{
1.143 + charStart = start;
1.144 + charLimit = start + length;
1.145 +
1.146 + reset();
1.147 +}
1.148 +
1.149 +inline void ScriptRun::reset(const UChar chars[], int32_t start, int32_t length)
1.150 +{
1.151 + charArray = chars;
1.152 +
1.153 + reset(start, length);
1.154 +}
1.155 +
1.156 +
1.157 +#endif
