diff options
Diffstat (limited to 'thirdparty/icu4c/common/uprops.cpp')
| -rw-r--r-- | thirdparty/icu4c/common/uprops.cpp | 87 |
1 files changed, 87 insertions, 0 deletions
diff --git a/thirdparty/icu4c/common/uprops.cpp b/thirdparty/icu4c/common/uprops.cpp index 314fa6fb86..c87eeff381 100644 --- a/thirdparty/icu4c/common/uprops.cpp +++ b/thirdparty/icu4c/common/uprops.cpp @@ -668,6 +668,11 @@ static int32_t layoutGetMaxValue(const IntProperty &/*prop*/, UProperty which) { } } +static int32_t getIDStatusValue(const IntProperty & /*prop*/, UChar32 c, UProperty /*which*/) { + uint32_t value = u_getUnicodeProperties(c, 2) >> UPROPS_2_ID_TYPE_SHIFT; + return value >= UPROPS_ID_TYPE_ALLOWED_MIN ? U_ID_STATUS_ALLOWED : U_ID_STATUS_RESTRICTED; +} + static const IntProperty intProps[UCHAR_INT_LIMIT-UCHAR_INT_START]={ /* * column, mask and shift values for int-value properties from u_getUnicodeProperties(). @@ -706,6 +711,7 @@ static const IntProperty intProps[UCHAR_INT_LIMIT-UCHAR_INT_START]={ { UPROPS_SRC_INPC, 0, 0, getInPC, layoutGetMaxValue }, { UPROPS_SRC_INSC, 0, 0, getInSC, layoutGetMaxValue }, { UPROPS_SRC_VO, 0, 0, getVo, layoutGetMaxValue }, + { UPROPS_SRC_PROPSVEC, 0, (int32_t)U_ID_STATUS_ALLOWED, getIDStatusValue, getMaxValueFromShift }, }; U_CAPI int32_t U_EXPORT2 @@ -800,6 +806,7 @@ uprops_getSource(UProperty which) { } else { switch(which) { case UCHAR_SCRIPT_EXTENSIONS: + case UCHAR_IDENTIFIER_TYPE: return UPROPS_SRC_PROPSVEC; default: return UPROPS_SRC_NONE; /* undefined */ @@ -853,6 +860,86 @@ uprops_addPropertyStarts(UPropertySource src, const USetAdder *sa, UErrorCode *p } } +U_CAPI bool U_EXPORT2 +u_hasIDType(UChar32 c, UIdentifierType type) { + uint32_t typeIndex = type; // also guards against negative type integers + if (typeIndex >= UPRV_LENGTHOF(uprops_idTypeToEncoded)) { + return false; + } + uint32_t encodedType = uprops_idTypeToEncoded[typeIndex]; + uint32_t value = u_getUnicodeProperties(c, 2) >> UPROPS_2_ID_TYPE_SHIFT; + if ((encodedType & UPROPS_ID_TYPE_BIT) != 0) { + return value < UPROPS_ID_TYPE_FORBIDDEN && (value & encodedType) != 0; + } else { + return value == encodedType; + } +} + +namespace { + +void maybeAppendType(uint32_t value, uint32_t bit, UIdentifierType t, + UIdentifierType *types, int32_t &length, int32_t capacity) { + if ((value & bit) != 0) { + if (length < capacity) { + types[length] = t; + } + ++length; + } +} + +} // namespace + +U_CAPI int32_t U_EXPORT2 +u_getIDTypes(UChar32 c, UIdentifierType *types, int32_t capacity, UErrorCode *pErrorCode) { + if (U_FAILURE(*pErrorCode)) { return 0; } + if (capacity < 0 || (capacity > 0 && types == nullptr)) { + *pErrorCode = U_ILLEGAL_ARGUMENT_ERROR; + return 0; + } + uint32_t value = u_getUnicodeProperties(c, 2) >> UPROPS_2_ID_TYPE_SHIFT; + if ((value & UPROPS_ID_TYPE_FORBIDDEN) == UPROPS_ID_TYPE_FORBIDDEN || + value == UPROPS_ID_TYPE_NOT_CHARACTER) { + // single value + if (capacity > 0) { + UIdentifierType t; + switch (value) { + case UPROPS_ID_TYPE_NOT_CHARACTER: t = U_ID_TYPE_NOT_CHARACTER; break; + case UPROPS_ID_TYPE_DEPRECATED: t = U_ID_TYPE_DEPRECATED; break; + case UPROPS_ID_TYPE_DEFAULT_IGNORABLE: t = U_ID_TYPE_DEFAULT_IGNORABLE; break; + case UPROPS_ID_TYPE_NOT_NFKC: t = U_ID_TYPE_NOT_NFKC; break; + case UPROPS_ID_TYPE_INCLUSION: t = U_ID_TYPE_INCLUSION; break; + case UPROPS_ID_TYPE_RECOMMENDED: t = U_ID_TYPE_RECOMMENDED; break; + default: + *pErrorCode = U_INVALID_FORMAT_ERROR; + return 0; + } + types[0] = t; + } else { + *pErrorCode = U_BUFFER_OVERFLOW_ERROR; + } + return 1; + } else { + // one or more combinable bits + int32_t length = 0; + maybeAppendType(value, UPROPS_ID_TYPE_NOT_XID, U_ID_TYPE_NOT_XID, + types, length, capacity); + maybeAppendType(value, UPROPS_ID_TYPE_EXCLUSION, U_ID_TYPE_EXCLUSION, + types, length, capacity); + maybeAppendType(value, UPROPS_ID_TYPE_OBSOLETE, U_ID_TYPE_OBSOLETE, + types, length, capacity); + maybeAppendType(value, UPROPS_ID_TYPE_TECHNICAL, U_ID_TYPE_TECHNICAL, + types, length, capacity); + maybeAppendType(value, UPROPS_ID_TYPE_UNCOMMON_USE, U_ID_TYPE_UNCOMMON_USE, + types, length, capacity); + maybeAppendType(value, UPROPS_ID_TYPE_LIMITED_USE, U_ID_TYPE_LIMITED_USE, + types, length, capacity); + if (length >= capacity) { + *pErrorCode = U_BUFFER_OVERFLOW_ERROR; + } + return length; + } +} + #if !UCONFIG_NO_NORMALIZATION U_CAPI int32_t U_EXPORT2 |