--- /dev/null
+/*
+*******************************************************************************
+*
+* Copyright (C) 2002-2010, 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 "ucln_cmn.h"
+#include "umutex.h"
+#include "ubidi_props.h"
+#include "uprops.h"
+#include "ucase.h"
+#include "ustr_imp.h"
+
+#define LENGTHOF(array) (int32_t)(sizeof(array)/sizeof((array)[0]))
+
+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=Normalizer2Factory::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, 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 and contains==NULL 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 }
+};
+
+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);
+ }
+}
+
+#if !UCONFIG_NO_NORMALIZATION
+
+U_CAPI uint8_t U_EXPORT2
+u_getCombiningClass(UChar32 c) {
+ UErrorCode errorCode=U_ZERO_ERROR;
+ const Normalizer2Impl *impl=Normalizer2Factory::getNFCImpl(errorCode);
+ if(U_SUCCESS(errorCode)) {
+ return impl->getCC(impl->getNorm16(c));
+ } else {
+ return 0;
+ }
+}
+
+static uint16_t
+getFCD16(UChar32 c) {
+ UErrorCode errorCode=U_ZERO_ERROR;
+ const UTrie2 *trie=Normalizer2Factory::getFCDTrie(errorCode);
+ if(U_SUCCESS(errorCode)) {
+ return UTRIE2_GET16(trie, c);
+ } else {
+ return 0;
+ }
+}
+
+#endif
+
+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 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_getUnicodeProperties(c, -1));
+ 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<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 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 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 and getValue==NULL 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 }
+};
+
+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=Normalizer2Factory::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
projects / apple / icu.git / blobdiff