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| 1 /* | |
| 2 ******************************************************************************* | |
| 3 * | |
| 4 * Copyright (C) 2001-2011, International Business Machines | |
| 5 * Corporation and others. All Rights Reserved. | |
| 6 * | |
| 7 ******************************************************************************* | |
| 8 * file name: ucol_tok.h | |
| 9 * encoding: US-ASCII | |
| 10 * tab size: 8 (not used) | |
| 11 * indentation:4 | |
| 12 * | |
| 13 * created 02/22/2001 | |
| 14 * created by: Vladimir Weinstein | |
| 15 * | |
| 16 * This module reads a tailoring rule string and produces a list of | |
| 17 * tokens that will be turned into collation elements | |
| 18 * | |
| 19 */ | |
| 20 | |
| 21 #ifndef UCOL_TOKENS_H | |
| 22 #define UCOL_TOKENS_H | |
| 23 | |
| 24 #include "unicode/utypes.h" | |
| 25 #include "unicode/uset.h" | |
| 26 | |
| 27 #if !UCONFIG_NO_COLLATION | |
| 28 | |
| 29 #include "ucol_imp.h" | |
| 30 #include "uhash.h" | |
| 31 #include "unicode/parseerr.h" | |
| 32 | |
| 33 #define UCOL_TOK_UNSET 0xFFFFFFFF | |
| 34 #define UCOL_TOK_RESET 0xDEADBEEF | |
| 35 | |
| 36 #define UCOL_TOK_POLARITY_NEGATIVE 0 | |
| 37 #define UCOL_TOK_POLARITY_POSITIVE 1 | |
| 38 | |
| 39 #define UCOL_TOK_TOP 0x04 | |
| 40 #define UCOL_TOK_VARIABLE_TOP 0x08 | |
| 41 #define UCOL_TOK_BEFORE 0x03 | |
| 42 #define UCOL_TOK_SUCCESS 0x10 | |
| 43 | |
| 44 /* this is space for the extra strings that need to be unquoted */ | |
| 45 /* during the parsing of the rules */ | |
| 46 #define UCOL_TOK_EXTRA_RULE_SPACE_SIZE 4096 | |
| 47 typedef struct UColToken UColToken; | |
| 48 | |
| 49 typedef struct { | |
| 50 UColToken* first; | |
| 51 UColToken* last; | |
| 52 UColToken* reset; | |
| 53 UBool indirect; | |
| 54 uint32_t baseCE; | |
| 55 uint32_t baseContCE; | |
| 56 uint32_t nextCE; | |
| 57 uint32_t nextContCE; | |
| 58 uint32_t previousCE; | |
| 59 uint32_t previousContCE; | |
| 60 int32_t pos[UCOL_STRENGTH_LIMIT]; | |
| 61 uint32_t gapsLo[3*UCOL_CE_STRENGTH_LIMIT]; | |
| 62 uint32_t gapsHi[3*UCOL_CE_STRENGTH_LIMIT]; | |
| 63 uint32_t numStr[UCOL_CE_STRENGTH_LIMIT]; | |
| 64 UColToken* fStrToken[UCOL_CE_STRENGTH_LIMIT]; | |
| 65 UColToken* lStrToken[UCOL_CE_STRENGTH_LIMIT]; | |
| 66 } UColTokListHeader; | |
| 67 | |
| 68 struct UColToken { | |
| 69 UChar debugSource; | |
| 70 UChar debugExpansion; | |
| 71 UChar debugPrefix; | |
| 72 uint32_t CEs[128]; | |
| 73 uint32_t noOfCEs; | |
| 74 uint32_t expCEs[128]; | |
| 75 uint32_t noOfExpCEs; | |
| 76 uint32_t source; | |
| 77 uint32_t expansion; | |
| 78 uint32_t prefix; | |
| 79 uint32_t strength; | |
| 80 uint32_t toInsert; | |
| 81 uint32_t polarity; /* 1 for <, <<, <<<, , ; and -1 for >, >>, >>> */ | |
| 82 UColTokListHeader *listHeader; | |
| 83 UColToken* previous; | |
| 84 UColToken* next; | |
| 85 UChar **rulesToParseHdl; | |
| 86 uint16_t flags; | |
| 87 }; | |
| 88 | |
| 89 /* | |
| 90 * This is a token that has been parsed | |
| 91 * but not yet processed. Used to reduce | |
| 92 * the number of arguments in the parser | |
| 93 */ | |
| 94 typedef struct { | |
| 95 uint32_t strength; | |
| 96 uint32_t charsOffset; | |
| 97 uint32_t charsLen; | |
| 98 uint32_t extensionOffset; | |
| 99 uint32_t extensionLen; | |
| 100 uint32_t prefixOffset; | |
| 101 uint32_t prefixLen; | |
| 102 uint16_t flags; | |
| 103 uint16_t indirectIndex; | |
| 104 } UColParsedToken; | |
| 105 | |
| 106 | |
| 107 typedef struct { | |
| 108 UColParsedToken parsedToken; | |
| 109 UChar *source; | |
| 110 UChar *end; | |
| 111 const UChar *current; | |
| 112 UChar *sourceCurrent; | |
| 113 UChar *extraCurrent; | |
| 114 UChar *extraEnd; | |
| 115 const InverseUCATableHeader *invUCA; | |
| 116 const UCollator *UCA; | |
| 117 UHashtable *tailored; | |
| 118 UColOptionSet *opts; | |
| 119 uint32_t resultLen; | |
| 120 uint32_t listCapacity; | |
| 121 UColTokListHeader *lh; | |
| 122 UColToken *varTop; | |
| 123 USet *copySet; | |
| 124 USet *removeSet; | |
| 125 UBool buildCCTabFlag; /* Tailoring rule requirs building combining class tabl
e. */ | |
| 126 | |
| 127 UChar32 previousCp; /* Previous code point. */ | |
| 128 /* For processing starred lists. */ | |
| 129 UBool isStarred; /* Are we processing a starred token? */ | |
| 130 UBool savedIsStarred; | |
| 131 uint32_t currentStarredCharIndex; /* Index of the current charrecter in the s
tarred expression. */ | |
| 132 uint32_t lastStarredCharIndex; /* Index to the last character in the starre
d expression. */ | |
| 133 | |
| 134 /* For processing ranges. */ | |
| 135 UBool inRange; /* Are we in a range? */ | |
| 136 UChar32 currentRangeCp; /* Current code point in the range. */ | |
| 137 UChar32 lastRangeCp; /* The last code point in the range. */ | |
| 138 | |
| 139 /* reorder codes for collation reordering */ | |
| 140 int32_t* reorderCodes; | |
| 141 int32_t reorderCodesLength; | |
| 142 | |
| 143 } UColTokenParser; | |
| 144 | |
| 145 typedef struct { | |
| 146 const UChar *subName; | |
| 147 int32_t subLen; | |
| 148 UColAttributeValue attrVal; | |
| 149 } ucolTokSuboption; | |
| 150 | |
| 151 typedef struct { | |
| 152 const UChar *optionName; | |
| 153 int32_t optionLen; | |
| 154 const ucolTokSuboption *subopts; | |
| 155 int32_t subSize; | |
| 156 UColAttribute attr; | |
| 157 } ucolTokOption; | |
| 158 | |
| 159 #define ucol_tok_isSpecialChar(ch) \ | |
| 160 (((((ch) <= 0x002F) && ((ch) >= 0x0020)) || \ | |
| 161 (((ch) <= 0x003F) && ((ch) >= 0x003A)) || \ | |
| 162 (((ch) <= 0x0060) && ((ch) >= 0x005B)) || \ | |
| 163 (((ch) <= 0x007E) && ((ch) >= 0x007D)) || \ | |
| 164 (ch) == 0x007B)) | |
| 165 | |
| 166 | |
| 167 U_CFUNC | |
| 168 uint32_t ucol_tok_assembleTokenList(UColTokenParser *src, | |
| 169 UParseError *parseError, | |
| 170 UErrorCode *status); | |
| 171 | |
| 172 U_CFUNC | |
| 173 void ucol_tok_initTokenList(UColTokenParser *src, | |
| 174 const UChar *rules, | |
| 175 const uint32_t rulesLength, | |
| 176 const UCollator *UCA, | |
| 177 GetCollationRulesFunction importFunc, | |
| 178 void* context, | |
| 179 UErrorCode *status); | |
| 180 | |
| 181 U_CFUNC void ucol_tok_closeTokenList(UColTokenParser *src); | |
| 182 | |
| 183 U_CAPI const UChar* U_EXPORT2 ucol_tok_parseNextToken(UColTokenParser *src, | |
| 184 UBool startOfRules, | |
| 185 UParseError *parseError, | |
| 186 UErrorCode *status); | |
| 187 | |
| 188 | |
| 189 U_CAPI const UChar * U_EXPORT2 | |
| 190 ucol_tok_getNextArgument(const UChar *start, const UChar *end, | |
| 191 UColAttribute *attrib, UColAttributeValue *value,
| |
| 192 UErrorCode *status); | |
| 193 U_CAPI int32_t U_EXPORT2 ucol_inv_getNextCE(const UColTokenParser *src, | |
| 194 uint32_t CE, uint32_t contCE, | |
| 195 uint32_t *nextCE, uint32_t *nextCont
CE, | |
| 196 uint32_t strength); | |
| 197 U_CFUNC int32_t U_EXPORT2 ucol_inv_getPrevCE(const UColTokenParser *src, | |
| 198 uint32_t CE, uint32_t contCE, | |
| 199 uint32_t *prevCE, uint32_t *prevCont
CE, | |
| 200 uint32_t strength); | |
| 201 | |
| 202 const UChar* U_CALLCONV ucol_tok_getRulesFromBundle( | |
| 203 void* context, | |
| 204 const char* locale, | |
| 205 const char* type, | |
| 206 int32_t* pLength, | |
| 207 UErrorCode* status); | |
| 208 | |
| 209 #endif /* #if !UCONFIG_NO_COLLATION */ | |
| 210 | |
| 211 #endif | |
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Chromium Code Reviews
Issue 845603002:
Update ICU to 54.1 step 1 (Closed)
Base URL: https://chromium.googlesource.com/chromium/deps/icu.git@master