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comparison: intl/icu/source/extra/scrptrun/scrptrun.h
intl/icu/source/extra/scrptrun/scrptrun.h
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| -1:000000000000 | 0:02951e6f48e5 |
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| 1 /* | |
| 2 ******************************************************************************* | |
| 3 * | |
| 4 * Copyright (C) 1999-2003, International Business Machines | |
| 5 * Corporation and others. All Rights Reserved. | |
| 6 * | |
| 7 ******************************************************************************* | |
| 8 * file name: scrptrun.h | |
| 9 * | |
| 10 * created on: 10/17/2001 | |
| 11 * created by: Eric R. Mader | |
| 12 */ | |
| 13 | |
| 14 #ifndef __SCRPTRUN_H | |
| 15 #define __SCRPTRUN_H | |
| 16 | |
| 17 #include "unicode/utypes.h" | |
| 18 #include "unicode/uobject.h" | |
| 19 #include "unicode/uscript.h" | |
| 20 | |
| 21 struct ScriptRecord | |
| 22 { | |
| 23 UChar32 startChar; | |
| 24 UChar32 endChar; | |
| 25 UScriptCode scriptCode; | |
| 26 }; | |
| 27 | |
| 28 struct ParenStackEntry | |
| 29 { | |
| 30 int32_t pairIndex; | |
| 31 UScriptCode scriptCode; | |
| 32 }; | |
| 33 | |
| 34 class ScriptRun : public UObject { | |
| 35 public: | |
| 36 ScriptRun(); | |
| 37 | |
| 38 ScriptRun(const UChar chars[], int32_t length); | |
| 39 | |
| 40 ScriptRun(const UChar chars[], int32_t start, int32_t length); | |
| 41 | |
| 42 void reset(); | |
| 43 | |
| 44 void reset(int32_t start, int32_t count); | |
| 45 | |
| 46 void reset(const UChar chars[], int32_t start, int32_t length); | |
| 47 | |
| 48 int32_t getScriptStart(); | |
| 49 | |
| 50 int32_t getScriptEnd(); | |
| 51 | |
| 52 UScriptCode getScriptCode(); | |
| 53 | |
| 54 UBool next(); | |
| 55 | |
| 56 /** | |
| 57 * ICU "poor man's RTTI", returns a UClassID for the actual class. | |
| 58 * | |
| 59 * @stable ICU 2.2 | |
| 60 */ | |
| 61 virtual inline UClassID getDynamicClassID() const { return getStaticClassID(); } | |
| 62 | |
| 63 /** | |
| 64 * ICU "poor man's RTTI", returns a UClassID for this class. | |
| 65 * | |
| 66 * @stable ICU 2.2 | |
| 67 */ | |
| 68 static inline UClassID getStaticClassID() { return (UClassID)&fgClassID; } | |
| 69 | |
| 70 private: | |
| 71 | |
| 72 static UBool sameScript(int32_t scriptOne, int32_t scriptTwo); | |
| 73 | |
| 74 int32_t charStart; | |
| 75 int32_t charLimit; | |
| 76 const UChar *charArray; | |
| 77 | |
| 78 int32_t scriptStart; | |
| 79 int32_t scriptEnd; | |
| 80 UScriptCode scriptCode; | |
| 81 | |
| 82 ParenStackEntry parenStack[128]; | |
| 83 int32_t parenSP; | |
| 84 | |
| 85 static int8_t highBit(int32_t value); | |
| 86 static int32_t getPairIndex(UChar32 ch); | |
| 87 | |
| 88 static UChar32 pairedChars[]; | |
| 89 static const int32_t pairedCharCount; | |
| 90 static const int32_t pairedCharPower; | |
| 91 static const int32_t pairedCharExtra; | |
| 92 | |
| 93 /** | |
| 94 * The address of this static class variable serves as this class's ID | |
| 95 * for ICU "poor man's RTTI". | |
| 96 */ | |
| 97 static const char fgClassID; | |
| 98 }; | |
| 99 | |
| 100 inline ScriptRun::ScriptRun() | |
| 101 { | |
| 102 reset(NULL, 0, 0); | |
| 103 } | |
| 104 | |
| 105 inline ScriptRun::ScriptRun(const UChar chars[], int32_t length) | |
| 106 { | |
| 107 reset(chars, 0, length); | |
| 108 } | |
| 109 | |
| 110 inline ScriptRun::ScriptRun(const UChar chars[], int32_t start, int32_t length) | |
| 111 { | |
| 112 reset(chars, start, length); | |
| 113 } | |
| 114 | |
| 115 inline int32_t ScriptRun::getScriptStart() | |
| 116 { | |
| 117 return scriptStart; | |
| 118 } | |
| 119 | |
| 120 inline int32_t ScriptRun::getScriptEnd() | |
| 121 { | |
| 122 return scriptEnd; | |
| 123 } | |
| 124 | |
| 125 inline UScriptCode ScriptRun::getScriptCode() | |
| 126 { | |
| 127 return scriptCode; | |
| 128 } | |
| 129 | |
| 130 inline void ScriptRun::reset() | |
| 131 { | |
| 132 scriptStart = charStart; | |
| 133 scriptEnd = charStart; | |
| 134 scriptCode = USCRIPT_INVALID_CODE; | |
| 135 parenSP = -1; | |
| 136 } | |
| 137 | |
| 138 inline void ScriptRun::reset(int32_t start, int32_t length) | |
| 139 { | |
| 140 charStart = start; | |
| 141 charLimit = start + length; | |
| 142 | |
| 143 reset(); | |
| 144 } | |
| 145 | |
| 146 inline void ScriptRun::reset(const UChar chars[], int32_t start, int32_t length) | |
| 147 { | |
| 148 charArray = chars; | |
| 149 | |
| 150 reset(start, length); | |
| 151 } | |
| 152 | |
| 153 | |
| 154 #endif |
