| /* |
| ******************************************************************************* |
| * |
| * Copyright (C) 2002-2016, International Business Machines |
| * Corporation and others. All Rights Reserved. |
| * |
| ******************************************************************************* |
| * file name: uprops.cpp |
| * encoding: US-ASCII |
| * tab size: 8 (not used) |
| * indentation:4 |
| * |
| * created on: 2002feb24 |
| * created by: Markus W. Scherer |
| * |
| * Implementations for mostly non-core Unicode character properties |
| * stored in uprops.icu. |
| * |
| * With the APIs implemented here, almost all properties files and |
| * their associated implementation files are used from this file, |
| * including those for normalization and case mappings. |
| */ |
| |
| #include "unicode/utypes.h" |
| #include "unicode/uchar.h" |
| #include "unicode/unorm2.h" |
| #include "unicode/uscript.h" |
| #include "unicode/ustring.h" |
| #include "cstring.h" |
| #include "normalizer2impl.h" |
| #include "umutex.h" |
| #include "ubidi_props.h" |
| #include "uprops.h" |
| #include "ucase.h" |
| #include "ustr_imp.h" |
| |
| U_NAMESPACE_USE |
| |
| #define GET_BIDI_PROPS() ubidi_getSingleton() |
| |
| /* general properties API functions ----------------------------------------- */ |
| |
| struct BinaryProperty; |
| |
| typedef UBool BinaryPropertyContains(const BinaryProperty &prop, UChar32 c, UProperty which); |
| |
| struct BinaryProperty { |
| int32_t column; // SRC_PROPSVEC column, or "source" if mask==0 |
| uint32_t mask; |
| BinaryPropertyContains *contains; |
| }; |
| |
| static UBool defaultContains(const BinaryProperty &prop, UChar32 c, UProperty /*which*/) { |
| /* systematic, directly stored properties */ |
| return (u_getUnicodeProperties(c, prop.column)&prop.mask)!=0; |
| } |
| |
| static UBool caseBinaryPropertyContains(const BinaryProperty &/*prop*/, UChar32 c, UProperty which) { |
| return ucase_hasBinaryProperty(c, which); |
| } |
| |
| static UBool isBidiControl(const BinaryProperty &/*prop*/, UChar32 c, UProperty /*which*/) { |
| return ubidi_isBidiControl(GET_BIDI_PROPS(), c); |
| } |
| |
| static UBool isMirrored(const BinaryProperty &/*prop*/, UChar32 c, UProperty /*which*/) { |
| return ubidi_isMirrored(GET_BIDI_PROPS(), c); |
| } |
| |
| static UBool isJoinControl(const BinaryProperty &/*prop*/, UChar32 c, UProperty /*which*/) { |
| return ubidi_isJoinControl(GET_BIDI_PROPS(), c); |
| } |
| |
| #if UCONFIG_NO_NORMALIZATION |
| static UBool hasFullCompositionExclusion(const BinaryProperty &, UChar32, UProperty) { |
| return FALSE; |
| } |
| #else |
| static UBool hasFullCompositionExclusion(const BinaryProperty &/*prop*/, UChar32 c, UProperty /*which*/) { |
| // By definition, Full_Composition_Exclusion is the same as NFC_QC=No. |
| UErrorCode errorCode=U_ZERO_ERROR; |
| const Normalizer2Impl *impl=Normalizer2Factory::getNFCImpl(errorCode); |
| return U_SUCCESS(errorCode) && impl->isCompNo(impl->getNorm16(c)); |
| } |
| #endif |
| |
| // UCHAR_NF*_INERT properties |
| #if UCONFIG_NO_NORMALIZATION |
| static UBool isNormInert(const BinaryProperty &, UChar32, UProperty) { |
| return FALSE; |
| } |
| #else |
| static UBool isNormInert(const BinaryProperty &/*prop*/, UChar32 c, UProperty which) { |
| UErrorCode errorCode=U_ZERO_ERROR; |
| const Normalizer2 *norm2=Normalizer2Factory::getInstance( |
| (UNormalizationMode)(which-UCHAR_NFD_INERT+UNORM_NFD), errorCode); |
| return U_SUCCESS(errorCode) && norm2->isInert(c); |
| } |
| #endif |
| |
| #if UCONFIG_NO_NORMALIZATION |
| static UBool changesWhenCasefolded(const BinaryProperty &, UChar32, UProperty) { |
| return FALSE; |
| } |
| #else |
| static UBool changesWhenCasefolded(const BinaryProperty &/*prop*/, UChar32 c, UProperty /*which*/) { |
| UnicodeString nfd; |
| UErrorCode errorCode=U_ZERO_ERROR; |
| const Normalizer2 *nfcNorm2=Normalizer2::getNFCInstance(errorCode); |
| if(U_FAILURE(errorCode)) { |
| return FALSE; |
| } |
| if(nfcNorm2->getDecomposition(c, nfd)) { |
| /* c has a decomposition */ |
| if(nfd.length()==1) { |
| c=nfd[0]; /* single BMP code point */ |
| } else if(nfd.length()<=U16_MAX_LENGTH && |
| nfd.length()==U16_LENGTH(c=nfd.char32At(0)) |
| ) { |
| /* single supplementary code point */ |
| } else { |
| c=U_SENTINEL; |
| } |
| } else if(c<0) { |
| return FALSE; /* protect against bad input */ |
| } |
| if(c>=0) { |
| /* single code point */ |
| const UCaseProps *csp=ucase_getSingleton(); |
| const UChar *resultString; |
| return (UBool)(ucase_toFullFolding(csp, c, &resultString, U_FOLD_CASE_DEFAULT)>=0); |
| } else { |
| /* guess some large but stack-friendly capacity */ |
| UChar dest[2*UCASE_MAX_STRING_LENGTH]; |
| int32_t destLength; |
| destLength=u_strFoldCase(dest, UPRV_LENGTHOF(dest), |
| nfd.getBuffer(), nfd.length(), |
| U_FOLD_CASE_DEFAULT, &errorCode); |
| return (UBool)(U_SUCCESS(errorCode) && |
| 0!=u_strCompare(nfd.getBuffer(), nfd.length(), |
| dest, destLength, FALSE)); |
| } |
| } |
| #endif |
| |
| #if UCONFIG_NO_NORMALIZATION |
| static UBool changesWhenNFKC_Casefolded(const BinaryProperty &, UChar32, UProperty) { |
| return FALSE; |
| } |
| #else |
| static UBool changesWhenNFKC_Casefolded(const BinaryProperty &/*prop*/, UChar32 c, UProperty /*which*/) { |
| UErrorCode errorCode=U_ZERO_ERROR; |
| const Normalizer2Impl *kcf=Normalizer2Factory::getNFKC_CFImpl(errorCode); |
| if(U_FAILURE(errorCode)) { |
| return FALSE; |
| } |
| UnicodeString src(c); |
| UnicodeString dest; |
| { |
| // The ReorderingBuffer must be in a block because its destructor |
| // needs to release dest's buffer before we look at its contents. |
| ReorderingBuffer buffer(*kcf, dest); |
| // Small destCapacity for NFKC_CF(c). |
| if(buffer.init(5, errorCode)) { |
| const UChar *srcArray=src.getBuffer(); |
| kcf->compose(srcArray, srcArray+src.length(), FALSE, |
| TRUE, buffer, errorCode); |
| } |
| } |
| return U_SUCCESS(errorCode) && dest!=src; |
| } |
| #endif |
| |
| #if UCONFIG_NO_NORMALIZATION |
| static UBool isCanonSegmentStarter(const BinaryProperty &, UChar32, UProperty) { |
| return FALSE; |
| } |
| #else |
| static UBool isCanonSegmentStarter(const BinaryProperty &/*prop*/, UChar32 c, UProperty /*which*/) { |
| UErrorCode errorCode=U_ZERO_ERROR; |
| const Normalizer2Impl *impl=Normalizer2Factory::getNFCImpl(errorCode); |
| return |
| U_SUCCESS(errorCode) && impl->ensureCanonIterData(errorCode) && |
| impl->isCanonSegmentStarter(c); |
| } |
| #endif |
| |
| static UBool isPOSIX_alnum(const BinaryProperty &/*prop*/, UChar32 c, UProperty /*which*/) { |
| return u_isalnumPOSIX(c); |
| } |
| |
| static UBool isPOSIX_blank(const BinaryProperty &/*prop*/, UChar32 c, UProperty /*which*/) { |
| return u_isblank(c); |
| } |
| |
| static UBool isPOSIX_graph(const BinaryProperty &/*prop*/, UChar32 c, UProperty /*which*/) { |
| return u_isgraphPOSIX(c); |
| } |
| |
| static UBool isPOSIX_print(const BinaryProperty &/*prop*/, UChar32 c, UProperty /*which*/) { |
| return u_isprintPOSIX(c); |
| } |
| |
| static UBool isPOSIX_xdigit(const BinaryProperty &/*prop*/, UChar32 c, UProperty /*which*/) { |
| return u_isxdigit(c); |
| } |
| |
| static const BinaryProperty binProps[UCHAR_BINARY_LIMIT]={ |
| /* |
| * column and mask values for binary properties from u_getUnicodeProperties(). |
| * Must be in order of corresponding UProperty, |
| * and there must be exactly one entry per binary UProperty. |
| * |
| * Properties with mask==0 are handled in code. |
| * For them, column is the UPropertySource value. |
| */ |
| { 1, U_MASK(UPROPS_ALPHABETIC), defaultContains }, |
| { 1, U_MASK(UPROPS_ASCII_HEX_DIGIT), defaultContains }, |
| { UPROPS_SRC_BIDI, 0, isBidiControl }, |
| { UPROPS_SRC_BIDI, 0, isMirrored }, |
| { 1, U_MASK(UPROPS_DASH), defaultContains }, |
| { 1, U_MASK(UPROPS_DEFAULT_IGNORABLE_CODE_POINT), defaultContains }, |
| { 1, U_MASK(UPROPS_DEPRECATED), defaultContains }, |
| { 1, U_MASK(UPROPS_DIACRITIC), defaultContains }, |
| { 1, U_MASK(UPROPS_EXTENDER), defaultContains }, |
| { UPROPS_SRC_NFC, 0, hasFullCompositionExclusion }, |
| { 1, U_MASK(UPROPS_GRAPHEME_BASE), defaultContains }, |
| { 1, U_MASK(UPROPS_GRAPHEME_EXTEND), defaultContains }, |
| { 1, U_MASK(UPROPS_GRAPHEME_LINK), defaultContains }, |
| { 1, U_MASK(UPROPS_HEX_DIGIT), defaultContains }, |
| { 1, U_MASK(UPROPS_HYPHEN), defaultContains }, |
| { 1, U_MASK(UPROPS_ID_CONTINUE), defaultContains }, |
| { 1, U_MASK(UPROPS_ID_START), defaultContains }, |
| { 1, U_MASK(UPROPS_IDEOGRAPHIC), defaultContains }, |
| { 1, U_MASK(UPROPS_IDS_BINARY_OPERATOR), defaultContains }, |
| { 1, U_MASK(UPROPS_IDS_TRINARY_OPERATOR), defaultContains }, |
| { UPROPS_SRC_BIDI, 0, isJoinControl }, |
| { 1, U_MASK(UPROPS_LOGICAL_ORDER_EXCEPTION), defaultContains }, |
| { UPROPS_SRC_CASE, 0, caseBinaryPropertyContains }, // UCHAR_LOWERCASE |
| { 1, U_MASK(UPROPS_MATH), defaultContains }, |
| { 1, U_MASK(UPROPS_NONCHARACTER_CODE_POINT), defaultContains }, |
| { 1, U_MASK(UPROPS_QUOTATION_MARK), defaultContains }, |
| { 1, U_MASK(UPROPS_RADICAL), defaultContains }, |
| { UPROPS_SRC_CASE, 0, caseBinaryPropertyContains }, // UCHAR_SOFT_DOTTED |
| { 1, U_MASK(UPROPS_TERMINAL_PUNCTUATION), defaultContains }, |
| { 1, U_MASK(UPROPS_UNIFIED_IDEOGRAPH), defaultContains }, |
| { UPROPS_SRC_CASE, 0, caseBinaryPropertyContains }, // UCHAR_UPPERCASE |
| { 1, U_MASK(UPROPS_WHITE_SPACE), defaultContains }, |
| { 1, U_MASK(UPROPS_XID_CONTINUE), defaultContains }, |
| { 1, U_MASK(UPROPS_XID_START), defaultContains }, |
| { UPROPS_SRC_CASE, 0, caseBinaryPropertyContains }, // UCHAR_CASE_SENSITIVE |
| { 1, U_MASK(UPROPS_S_TERM), defaultContains }, |
| { 1, U_MASK(UPROPS_VARIATION_SELECTOR), defaultContains }, |
| { UPROPS_SRC_NFC, 0, isNormInert }, // UCHAR_NFD_INERT |
| { UPROPS_SRC_NFKC, 0, isNormInert }, // UCHAR_NFKD_INERT |
| { UPROPS_SRC_NFC, 0, isNormInert }, // UCHAR_NFC_INERT |
| { UPROPS_SRC_NFKC, 0, isNormInert }, // UCHAR_NFKC_INERT |
| { UPROPS_SRC_NFC_CANON_ITER, 0, isCanonSegmentStarter }, |
| { 1, U_MASK(UPROPS_PATTERN_SYNTAX), defaultContains }, |
| { 1, U_MASK(UPROPS_PATTERN_WHITE_SPACE), defaultContains }, |
| { UPROPS_SRC_CHAR_AND_PROPSVEC, 0, isPOSIX_alnum }, |
| { UPROPS_SRC_CHAR, 0, isPOSIX_blank }, |
| { UPROPS_SRC_CHAR, 0, isPOSIX_graph }, |
| { UPROPS_SRC_CHAR, 0, isPOSIX_print }, |
| { UPROPS_SRC_CHAR, 0, isPOSIX_xdigit }, |
| { UPROPS_SRC_CASE, 0, caseBinaryPropertyContains }, // UCHAR_CASED |
| { UPROPS_SRC_CASE, 0, caseBinaryPropertyContains }, // UCHAR_CASE_IGNORABLE |
| { UPROPS_SRC_CASE, 0, caseBinaryPropertyContains }, // UCHAR_CHANGES_WHEN_LOWERCASED |
| { UPROPS_SRC_CASE, 0, caseBinaryPropertyContains }, // UCHAR_CHANGES_WHEN_UPPERCASED |
| { UPROPS_SRC_CASE, 0, caseBinaryPropertyContains }, // UCHAR_CHANGES_WHEN_TITLECASED |
| { UPROPS_SRC_CASE_AND_NORM, 0, changesWhenCasefolded }, |
| { UPROPS_SRC_CASE, 0, caseBinaryPropertyContains }, // UCHAR_CHANGES_WHEN_CASEMAPPED |
| { UPROPS_SRC_NFKC_CF, 0, changesWhenNFKC_Casefolded }, |
| { 2, U_MASK(UPROPS_2_EMOJI), defaultContains }, |
| { 2, U_MASK(UPROPS_2_EMOJI_PRESENTATION), defaultContains }, |
| { 2, U_MASK(UPROPS_2_EMOJI_MODIFIER), defaultContains }, |
| { 2, U_MASK(UPROPS_2_EMOJI_MODIFIER_BASE), defaultContains }, |
| }; |
| |
| U_CAPI UBool U_EXPORT2 |
| u_hasBinaryProperty(UChar32 c, UProperty which) { |
| /* c is range-checked in the functions that are called from here */ |
| if(which<UCHAR_BINARY_START || UCHAR_BINARY_LIMIT<=which) { |
| /* not a known binary property */ |
| return FALSE; |
| } else { |
| const BinaryProperty &prop=binProps[which]; |
| return prop.contains(prop, c, which); |
| } |
| } |
| |
| struct IntProperty; |
| |
| typedef int32_t IntPropertyGetValue(const IntProperty &prop, UChar32 c, UProperty which); |
| typedef int32_t IntPropertyGetMaxValue(const IntProperty &prop, UProperty which); |
| |
| struct IntProperty { |
| int32_t column; // SRC_PROPSVEC column, or "source" if mask==0 |
| uint32_t mask; |
| int32_t shift; // =maxValue if getMaxValueFromShift() is used |
| IntPropertyGetValue *getValue; |
| IntPropertyGetMaxValue *getMaxValue; |
| }; |
| |
| static int32_t defaultGetValue(const IntProperty &prop, UChar32 c, UProperty /*which*/) { |
| /* systematic, directly stored properties */ |
| return (int32_t)(u_getUnicodeProperties(c, prop.column)&prop.mask)>>prop.shift; |
| } |
| |
| static int32_t defaultGetMaxValue(const IntProperty &prop, UProperty /*which*/) { |
| return (uprv_getMaxValues(prop.column)&prop.mask)>>prop.shift; |
| } |
| |
| static int32_t getMaxValueFromShift(const IntProperty &prop, UProperty /*which*/) { |
| return prop.shift; |
| } |
| |
| static int32_t getBiDiClass(const IntProperty &/*prop*/, UChar32 c, UProperty /*which*/) { |
| return (int32_t)u_charDirection(c); |
| } |
| |
| static int32_t getBiDiPairedBracketType(const IntProperty &/*prop*/, UChar32 c, UProperty /*which*/) { |
| return (int32_t)ubidi_getPairedBracketType(GET_BIDI_PROPS(), c); |
| } |
| |
| static int32_t biDiGetMaxValue(const IntProperty &/*prop*/, UProperty which) { |
| return ubidi_getMaxValue(GET_BIDI_PROPS(), which); |
| } |
| |
| #if UCONFIG_NO_NORMALIZATION |
| static int32_t getCombiningClass(const IntProperty &, UChar32, UProperty) { |
| return 0; |
| } |
| #else |
| static int32_t getCombiningClass(const IntProperty &/*prop*/, UChar32 c, UProperty /*which*/) { |
| return u_getCombiningClass(c); |
| } |
| #endif |
| |
| static int32_t getGeneralCategory(const IntProperty &/*prop*/, UChar32 c, UProperty /*which*/) { |
| return (int32_t)u_charType(c); |
| } |
| |
| static int32_t getJoiningGroup(const IntProperty &/*prop*/, UChar32 c, UProperty /*which*/) { |
| return ubidi_getJoiningGroup(GET_BIDI_PROPS(), c); |
| } |
| |
| static int32_t getJoiningType(const IntProperty &/*prop*/, UChar32 c, UProperty /*which*/) { |
| return ubidi_getJoiningType(GET_BIDI_PROPS(), c); |
| } |
| |
| static int32_t getNumericType(const IntProperty &/*prop*/, UChar32 c, UProperty /*which*/) { |
| int32_t ntv=(int32_t)GET_NUMERIC_TYPE_VALUE(u_getMainProperties(c)); |
| return UPROPS_NTV_GET_TYPE(ntv); |
| } |
| |
| static int32_t getScript(const IntProperty &/*prop*/, UChar32 c, UProperty /*which*/) { |
| UErrorCode errorCode=U_ZERO_ERROR; |
| return (int32_t)uscript_getScript(c, &errorCode); |
| } |
| |
| /* |
| * Map some of the Grapheme Cluster Break values to Hangul Syllable Types. |
| * Hangul_Syllable_Type is fully redundant with a subset of Grapheme_Cluster_Break. |
| */ |
| static const UHangulSyllableType gcbToHst[]={ |
| U_HST_NOT_APPLICABLE, /* U_GCB_OTHER */ |
| U_HST_NOT_APPLICABLE, /* U_GCB_CONTROL */ |
| U_HST_NOT_APPLICABLE, /* U_GCB_CR */ |
| U_HST_NOT_APPLICABLE, /* U_GCB_EXTEND */ |
| U_HST_LEADING_JAMO, /* U_GCB_L */ |
| U_HST_NOT_APPLICABLE, /* U_GCB_LF */ |
| U_HST_LV_SYLLABLE, /* U_GCB_LV */ |
| U_HST_LVT_SYLLABLE, /* U_GCB_LVT */ |
| U_HST_TRAILING_JAMO, /* U_GCB_T */ |
| U_HST_VOWEL_JAMO /* U_GCB_V */ |
| /* |
| * Omit GCB values beyond what we need for hst. |
| * The code below checks for the array length. |
| */ |
| }; |
| |
| static int32_t getHangulSyllableType(const IntProperty &/*prop*/, UChar32 c, UProperty /*which*/) { |
| /* see comments on gcbToHst[] above */ |
| int32_t gcb=(int32_t)(u_getUnicodeProperties(c, 2)&UPROPS_GCB_MASK)>>UPROPS_GCB_SHIFT; |
| if(gcb<UPRV_LENGTHOF(gcbToHst)) { |
| return gcbToHst[gcb]; |
| } else { |
| return U_HST_NOT_APPLICABLE; |
| } |
| } |
| |
| #if UCONFIG_NO_NORMALIZATION |
| static int32_t getNormQuickCheck(const IntProperty &, UChar32, UProperty) { |
| return 0; |
| } |
| #else |
| static int32_t getNormQuickCheck(const IntProperty &/*prop*/, UChar32 c, UProperty which) { |
| return (int32_t)unorm_getQuickCheck(c, (UNormalizationMode)(which-UCHAR_NFD_QUICK_CHECK+UNORM_NFD)); |
| } |
| #endif |
| |
| #if UCONFIG_NO_NORMALIZATION |
| static int32_t getLeadCombiningClass(const IntProperty &, UChar32, UProperty) { |
| return 0; |
| } |
| #else |
| static int32_t getLeadCombiningClass(const IntProperty &/*prop*/, UChar32 c, UProperty /*which*/) { |
| return unorm_getFCD16(c)>>8; |
| } |
| #endif |
| |
| #if UCONFIG_NO_NORMALIZATION |
| static int32_t getTrailCombiningClass(const IntProperty &, UChar32, UProperty) { |
| return 0; |
| } |
| #else |
| static int32_t getTrailCombiningClass(const IntProperty &/*prop*/, UChar32 c, UProperty /*which*/) { |
| return unorm_getFCD16(c)&0xff; |
| } |
| #endif |
| |
| static const IntProperty intProps[UCHAR_INT_LIMIT-UCHAR_INT_START]={ |
| /* |
| * column, mask and shift values for int-value properties from u_getUnicodeProperties(). |
| * Must be in order of corresponding UProperty, |
| * and there must be exactly one entry per int UProperty. |
| * |
| * Properties with mask==0 are handled in code. |
| * For them, column is the UPropertySource value. |
| */ |
| { UPROPS_SRC_BIDI, 0, 0, getBiDiClass, biDiGetMaxValue }, |
| { 0, UPROPS_BLOCK_MASK, UPROPS_BLOCK_SHIFT, defaultGetValue, defaultGetMaxValue }, |
| { UPROPS_SRC_NFC, 0, 0xff, getCombiningClass, getMaxValueFromShift }, |
| { 2, UPROPS_DT_MASK, 0, defaultGetValue, defaultGetMaxValue }, |
| { 0, UPROPS_EA_MASK, UPROPS_EA_SHIFT, defaultGetValue, defaultGetMaxValue }, |
| { UPROPS_SRC_CHAR, 0, (int32_t)U_CHAR_CATEGORY_COUNT-1,getGeneralCategory, getMaxValueFromShift }, |
| { UPROPS_SRC_BIDI, 0, 0, getJoiningGroup, biDiGetMaxValue }, |
| { UPROPS_SRC_BIDI, 0, 0, getJoiningType, biDiGetMaxValue }, |
| { 2, UPROPS_LB_MASK, UPROPS_LB_SHIFT, defaultGetValue, defaultGetMaxValue }, |
| { UPROPS_SRC_CHAR, 0, (int32_t)U_NT_COUNT-1, getNumericType, getMaxValueFromShift }, |
| { 0, UPROPS_SCRIPT_MASK, 0, getScript, defaultGetMaxValue }, |
| { UPROPS_SRC_PROPSVEC, 0, (int32_t)U_HST_COUNT-1, getHangulSyllableType, getMaxValueFromShift }, |
| // UCHAR_NFD_QUICK_CHECK: max=1=YES -- never "maybe", only "no" or "yes" |
| { UPROPS_SRC_NFC, 0, (int32_t)UNORM_YES, getNormQuickCheck, getMaxValueFromShift }, |
| // UCHAR_NFKD_QUICK_CHECK: max=1=YES -- never "maybe", only "no" or "yes" |
| { UPROPS_SRC_NFKC, 0, (int32_t)UNORM_YES, getNormQuickCheck, getMaxValueFromShift }, |
| // UCHAR_NFC_QUICK_CHECK: max=2=MAYBE |
| { UPROPS_SRC_NFC, 0, (int32_t)UNORM_MAYBE, getNormQuickCheck, getMaxValueFromShift }, |
| // UCHAR_NFKC_QUICK_CHECK: max=2=MAYBE |
| { UPROPS_SRC_NFKC, 0, (int32_t)UNORM_MAYBE, getNormQuickCheck, getMaxValueFromShift }, |
| { UPROPS_SRC_NFC, 0, 0xff, getLeadCombiningClass, getMaxValueFromShift }, |
| { UPROPS_SRC_NFC, 0, 0xff, getTrailCombiningClass, getMaxValueFromShift }, |
| { 2, UPROPS_GCB_MASK, UPROPS_GCB_SHIFT, defaultGetValue, defaultGetMaxValue }, |
| { 2, UPROPS_SB_MASK, UPROPS_SB_SHIFT, defaultGetValue, defaultGetMaxValue }, |
| { 2, UPROPS_WB_MASK, UPROPS_WB_SHIFT, defaultGetValue, defaultGetMaxValue }, |
| { UPROPS_SRC_BIDI, 0, 0, getBiDiPairedBracketType, biDiGetMaxValue }, |
| }; |
| |
| U_CAPI int32_t U_EXPORT2 |
| u_getIntPropertyValue(UChar32 c, UProperty which) { |
| if(which<UCHAR_INT_START) { |
| if(UCHAR_BINARY_START<=which && which<UCHAR_BINARY_LIMIT) { |
| const BinaryProperty &prop=binProps[which]; |
| return prop.contains(prop, c, which); |
| } |
| } else if(which<UCHAR_INT_LIMIT) { |
| const IntProperty &prop=intProps[which-UCHAR_INT_START]; |
| return prop.getValue(prop, c, which); |
| } else if(which==UCHAR_GENERAL_CATEGORY_MASK) { |
| return U_MASK(u_charType(c)); |
| } |
| return 0; // undefined |
| } |
| |
| U_CAPI int32_t U_EXPORT2 |
| u_getIntPropertyMinValue(UProperty /*which*/) { |
| return 0; /* all binary/enum/int properties have a minimum value of 0 */ |
| } |
| |
| U_CAPI int32_t U_EXPORT2 |
| u_getIntPropertyMaxValue(UProperty which) { |
| if(which<UCHAR_INT_START) { |
| if(UCHAR_BINARY_START<=which && which<UCHAR_BINARY_LIMIT) { |
| return 1; // maximum TRUE for all binary properties |
| } |
| } else if(which<UCHAR_INT_LIMIT) { |
| const IntProperty &prop=intProps[which-UCHAR_INT_START]; |
| return prop.getMaxValue(prop, which); |
| } |
| return -1; // undefined |
| } |
| |
| U_CFUNC UPropertySource U_EXPORT2 |
| uprops_getSource(UProperty which) { |
| if(which<UCHAR_BINARY_START) { |
| return UPROPS_SRC_NONE; /* undefined */ |
| } else if(which<UCHAR_BINARY_LIMIT) { |
| const BinaryProperty &prop=binProps[which]; |
| if(prop.mask!=0) { |
| return UPROPS_SRC_PROPSVEC; |
| } else { |
| return (UPropertySource)prop.column; |
| } |
| } else if(which<UCHAR_INT_START) { |
| return UPROPS_SRC_NONE; /* undefined */ |
| } else if(which<UCHAR_INT_LIMIT) { |
| const IntProperty &prop=intProps[which-UCHAR_INT_START]; |
| if(prop.mask!=0) { |
| return UPROPS_SRC_PROPSVEC; |
| } else { |
| return (UPropertySource)prop.column; |
| } |
| } else if(which<UCHAR_STRING_START) { |
| switch(which) { |
| case UCHAR_GENERAL_CATEGORY_MASK: |
| case UCHAR_NUMERIC_VALUE: |
| return UPROPS_SRC_CHAR; |
| |
| default: |
| return UPROPS_SRC_NONE; |
| } |
| } else if(which<UCHAR_STRING_LIMIT) { |
| switch(which) { |
| case UCHAR_AGE: |
| return UPROPS_SRC_PROPSVEC; |
| |
| case UCHAR_BIDI_MIRRORING_GLYPH: |
| return UPROPS_SRC_BIDI; |
| |
| case UCHAR_CASE_FOLDING: |
| case UCHAR_LOWERCASE_MAPPING: |
| case UCHAR_SIMPLE_CASE_FOLDING: |
| case UCHAR_SIMPLE_LOWERCASE_MAPPING: |
| case UCHAR_SIMPLE_TITLECASE_MAPPING: |
| case UCHAR_SIMPLE_UPPERCASE_MAPPING: |
| case UCHAR_TITLECASE_MAPPING: |
| case UCHAR_UPPERCASE_MAPPING: |
| return UPROPS_SRC_CASE; |
| |
| case UCHAR_ISO_COMMENT: |
| case UCHAR_NAME: |
| case UCHAR_UNICODE_1_NAME: |
| return UPROPS_SRC_NAMES; |
| |
| default: |
| return UPROPS_SRC_NONE; |
| } |
| } else { |
| switch(which) { |
| case UCHAR_SCRIPT_EXTENSIONS: |
| return UPROPS_SRC_PROPSVEC; |
| default: |
| return UPROPS_SRC_NONE; /* undefined */ |
| } |
| } |
| } |
| |
| #if !UCONFIG_NO_NORMALIZATION |
| |
| U_CAPI int32_t U_EXPORT2 |
| u_getFC_NFKC_Closure(UChar32 c, UChar *dest, int32_t destCapacity, UErrorCode *pErrorCode) { |
| if(pErrorCode==NULL || U_FAILURE(*pErrorCode)) { |
| return 0; |
| } |
| if(destCapacity<0 || (dest==NULL && destCapacity>0)) { |
| *pErrorCode=U_ILLEGAL_ARGUMENT_ERROR; |
| return 0; |
| } |
| // Compute the FC_NFKC_Closure on the fly: |
| // We have the API for complete coverage of Unicode properties, although |
| // this value by itself is not useful via API. |
| // (What could be useful is a custom normalization table that combines |
| // case folding and NFKC.) |
| // For the derivation, see Unicode's DerivedNormalizationProps.txt. |
| const Normalizer2 *nfkc=Normalizer2::getNFKCInstance(*pErrorCode); |
| const UCaseProps *csp=ucase_getSingleton(); |
| if(U_FAILURE(*pErrorCode)) { |
| return 0; |
| } |
| // first: b = NFKC(Fold(a)) |
| UnicodeString folded1String; |
| const UChar *folded1; |
| int32_t folded1Length=ucase_toFullFolding(csp, c, &folded1, U_FOLD_CASE_DEFAULT); |
| if(folded1Length<0) { |
| const Normalizer2Impl *nfkcImpl=Normalizer2Factory::getImpl(nfkc); |
| if(nfkcImpl->getCompQuickCheck(nfkcImpl->getNorm16(c))!=UNORM_NO) { |
| return u_terminateUChars(dest, destCapacity, 0, pErrorCode); // c does not change at all under CaseFolding+NFKC |
| } |
| folded1String.setTo(c); |
| } else { |
| if(folded1Length>UCASE_MAX_STRING_LENGTH) { |
| folded1String.setTo(folded1Length); |
| } else { |
| folded1String.setTo(FALSE, folded1, folded1Length); |
| } |
| } |
| UnicodeString kc1=nfkc->normalize(folded1String, *pErrorCode); |
| // second: c = NFKC(Fold(b)) |
| UnicodeString folded2String(kc1); |
| UnicodeString kc2=nfkc->normalize(folded2String.foldCase(), *pErrorCode); |
| // if (c != b) add the mapping from a to c |
| if(U_FAILURE(*pErrorCode) || kc1==kc2) { |
| return u_terminateUChars(dest, destCapacity, 0, pErrorCode); |
| } else { |
| return kc2.extract(dest, destCapacity, *pErrorCode); |
| } |
| } |
| |
| #endif |
