ICU 74.2 74.2
Macros | Typedefs | Enumerations | Functions
uchar.h File Reference

C API: Unicode Properties. More...

#include "unicode/utypes.h"
#include "unicode/stringoptions.h"
#include "unicode/ucpmap.h"

Go to the source code of this file.

Macros

#define U_UNICODE_VERSION   "15.1"
 Unicode version number, default for the current ICU version.
 
#define UCHAR_MIN_VALUE   0
 Constants.
 
#define UCHAR_MAX_VALUE   0x10ffff
 The highest Unicode code point value (scalar value) according to The Unicode Standard.
 
#define U_MASK(x)   ((uint32_t)1<<(x))
 Get a single-bit bit set (a flag) from a bit number 0..31.
 
#define U_GC_CN_MASK   U_MASK(U_GENERAL_OTHER_TYPES)
 U_GC_XX_MASK constants are bit flags corresponding to Unicode general category values.
 
#define U_GC_LU_MASK   U_MASK(U_UPPERCASE_LETTER)
 Mask constant for a UCharCategory.
 
#define U_GC_LL_MASK   U_MASK(U_LOWERCASE_LETTER)
 Mask constant for a UCharCategory.
 
#define U_GC_LT_MASK   U_MASK(U_TITLECASE_LETTER)
 Mask constant for a UCharCategory.
 
#define U_GC_LM_MASK   U_MASK(U_MODIFIER_LETTER)
 Mask constant for a UCharCategory.
 
#define U_GC_LO_MASK   U_MASK(U_OTHER_LETTER)
 Mask constant for a UCharCategory.
 
#define U_GC_MN_MASK   U_MASK(U_NON_SPACING_MARK)
 Mask constant for a UCharCategory.
 
#define U_GC_ME_MASK   U_MASK(U_ENCLOSING_MARK)
 Mask constant for a UCharCategory.
 
#define U_GC_MC_MASK   U_MASK(U_COMBINING_SPACING_MARK)
 Mask constant for a UCharCategory.
 
#define U_GC_ND_MASK   U_MASK(U_DECIMAL_DIGIT_NUMBER)
 Mask constant for a UCharCategory.
 
#define U_GC_NL_MASK   U_MASK(U_LETTER_NUMBER)
 Mask constant for a UCharCategory.
 
#define U_GC_NO_MASK   U_MASK(U_OTHER_NUMBER)
 Mask constant for a UCharCategory.
 
#define U_GC_ZS_MASK   U_MASK(U_SPACE_SEPARATOR)
 Mask constant for a UCharCategory.
 
#define U_GC_ZL_MASK   U_MASK(U_LINE_SEPARATOR)
 Mask constant for a UCharCategory.
 
#define U_GC_ZP_MASK   U_MASK(U_PARAGRAPH_SEPARATOR)
 Mask constant for a UCharCategory.
 
#define U_GC_CC_MASK   U_MASK(U_CONTROL_CHAR)
 Mask constant for a UCharCategory.
 
#define U_GC_CF_MASK   U_MASK(U_FORMAT_CHAR)
 Mask constant for a UCharCategory.
 
#define U_GC_CO_MASK   U_MASK(U_PRIVATE_USE_CHAR)
 Mask constant for a UCharCategory.
 
#define U_GC_CS_MASK   U_MASK(U_SURROGATE)
 Mask constant for a UCharCategory.
 
#define U_GC_PD_MASK   U_MASK(U_DASH_PUNCTUATION)
 Mask constant for a UCharCategory.
 
#define U_GC_PS_MASK   U_MASK(U_START_PUNCTUATION)
 Mask constant for a UCharCategory.
 
#define U_GC_PE_MASK   U_MASK(U_END_PUNCTUATION)
 Mask constant for a UCharCategory.
 
#define U_GC_PC_MASK   U_MASK(U_CONNECTOR_PUNCTUATION)
 Mask constant for a UCharCategory.
 
#define U_GC_PO_MASK   U_MASK(U_OTHER_PUNCTUATION)
 Mask constant for a UCharCategory.
 
#define U_GC_SM_MASK   U_MASK(U_MATH_SYMBOL)
 Mask constant for a UCharCategory.
 
#define U_GC_SC_MASK   U_MASK(U_CURRENCY_SYMBOL)
 Mask constant for a UCharCategory.
 
#define U_GC_SK_MASK   U_MASK(U_MODIFIER_SYMBOL)
 Mask constant for a UCharCategory.
 
#define U_GC_SO_MASK   U_MASK(U_OTHER_SYMBOL)
 Mask constant for a UCharCategory.
 
#define U_GC_PI_MASK   U_MASK(U_INITIAL_PUNCTUATION)
 Mask constant for a UCharCategory.
 
#define U_GC_PF_MASK   U_MASK(U_FINAL_PUNCTUATION)
 Mask constant for a UCharCategory.
 
#define U_GC_L_MASK    (U_GC_LU_MASK|U_GC_LL_MASK|U_GC_LT_MASK|U_GC_LM_MASK|U_GC_LO_MASK)
 Mask constant for multiple UCharCategory bits (L Letters).
 
#define U_GC_LC_MASK    (U_GC_LU_MASK|U_GC_LL_MASK|U_GC_LT_MASK)
 Mask constant for multiple UCharCategory bits (LC Cased Letters).
 
#define U_GC_M_MASK   (U_GC_MN_MASK|U_GC_ME_MASK|U_GC_MC_MASK)
 Mask constant for multiple UCharCategory bits (M Marks).
 
#define U_GC_N_MASK   (U_GC_ND_MASK|U_GC_NL_MASK|U_GC_NO_MASK)
 Mask constant for multiple UCharCategory bits (N Numbers).
 
#define U_GC_Z_MASK   (U_GC_ZS_MASK|U_GC_ZL_MASK|U_GC_ZP_MASK)
 Mask constant for multiple UCharCategory bits (Z Separators).
 
#define U_GC_C_MASK    (U_GC_CN_MASK|U_GC_CC_MASK|U_GC_CF_MASK|U_GC_CO_MASK|U_GC_CS_MASK)
 Mask constant for multiple UCharCategory bits (C Others).
 
#define U_GC_P_MASK
 Mask constant for multiple UCharCategory bits (P Punctuation).
 
#define U_GC_S_MASK   (U_GC_SM_MASK|U_GC_SC_MASK|U_GC_SK_MASK|U_GC_SO_MASK)
 Mask constant for multiple UCharCategory bits (S Symbols).
 
#define U_NO_NUMERIC_VALUE   ((double)-123456789.)
 Special value that is returned by u_getNumericValue when no numeric value is defined for a code point.
 
#define U_GET_GC_MASK(c)   U_MASK(u_charType(c))
 Get a single-bit bit set for the general category of a character.
 

Typedefs

typedef enum UProperty UProperty
 Selection constants for Unicode properties.
 
typedef enum UCharCategory UCharCategory
 Data for enumerated Unicode general category types.
 
typedef enum UCharDirection UCharDirection
 This specifies the language directional property of a character set.
 
typedef enum UBidiPairedBracketType UBidiPairedBracketType
 Bidi Paired Bracket Type constants.
 
typedef enum UBlockCode UBlockCode
 
typedef enum UEastAsianWidth UEastAsianWidth
 East Asian Width constants.
 
typedef enum UCharNameChoice UCharNameChoice
 Selector constants for u_charName().
 
typedef enum UPropertyNameChoice UPropertyNameChoice
 Selector constants for u_getPropertyName() and u_getPropertyValueName().
 
typedef enum UDecompositionType UDecompositionType
 Decomposition Type constants.
 
typedef enum UJoiningType UJoiningType
 Joining Type constants.
 
typedef enum UJoiningGroup UJoiningGroup
 Joining Group constants.
 
typedef enum UGraphemeClusterBreak UGraphemeClusterBreak
 Grapheme Cluster Break constants.
 
typedef enum UWordBreakValues UWordBreakValues
 Word Break constants.
 
typedef enum USentenceBreak USentenceBreak
 Sentence Break constants.
 
typedef enum ULineBreak ULineBreak
 Line Break constants.
 
typedef enum UNumericType UNumericType
 Numeric Type constants.
 
typedef enum UHangulSyllableType UHangulSyllableType
 Hangul Syllable Type constants.
 
typedef enum UIndicPositionalCategory UIndicPositionalCategory
 Indic Positional Category constants.
 
typedef enum UIndicSyllabicCategory UIndicSyllabicCategory
 Indic Syllabic Category constants.
 
typedef enum UVerticalOrientation UVerticalOrientation
 Vertical Orientation constants.
 
typedef UBool UCharEnumTypeRange(const void *context, UChar32 start, UChar32 limit, UCharCategory type)
 Callback from u_enumCharTypes(), is called for each contiguous range of code points c (where start<=c<limit) with the same Unicode general category ("character type").
 
typedef UBool UEnumCharNamesFn(void *context, UChar32 code, UCharNameChoice nameChoice, const char *name, int32_t length)
 Type of a callback function for u_enumCharNames() that gets called for each Unicode character with the code point value and the character name.
 

Enumerations

enum  UProperty {
  UCHAR_ALPHABETIC =0 , UCHAR_BINARY_START =UCHAR_ALPHABETIC , UCHAR_ASCII_HEX_DIGIT =1 , UCHAR_BIDI_CONTROL =2 ,
  UCHAR_BIDI_MIRRORED =3 , UCHAR_DASH =4 , UCHAR_DEFAULT_IGNORABLE_CODE_POINT =5 , UCHAR_DEPRECATED =6 ,
  UCHAR_DIACRITIC =7 , UCHAR_EXTENDER =8 , UCHAR_FULL_COMPOSITION_EXCLUSION =9 , UCHAR_GRAPHEME_BASE =10 ,
  UCHAR_GRAPHEME_EXTEND =11 , UCHAR_GRAPHEME_LINK =12 , UCHAR_HEX_DIGIT =13 , UCHAR_HYPHEN =14 ,
  UCHAR_ID_CONTINUE =15 , UCHAR_ID_START =16 , UCHAR_IDEOGRAPHIC =17 , UCHAR_IDS_BINARY_OPERATOR =18 ,
  UCHAR_IDS_TRINARY_OPERATOR =19 , UCHAR_JOIN_CONTROL =20 , UCHAR_LOGICAL_ORDER_EXCEPTION =21 , UCHAR_LOWERCASE =22 ,
  UCHAR_MATH =23 , UCHAR_NONCHARACTER_CODE_POINT =24 , UCHAR_QUOTATION_MARK =25 , UCHAR_RADICAL =26 ,
  UCHAR_SOFT_DOTTED =27 , UCHAR_TERMINAL_PUNCTUATION =28 , UCHAR_UNIFIED_IDEOGRAPH =29 , UCHAR_UPPERCASE =30 ,
  UCHAR_WHITE_SPACE =31 , UCHAR_XID_CONTINUE =32 , UCHAR_XID_START =33 , UCHAR_CASE_SENSITIVE =34 ,
  UCHAR_S_TERM =35 , UCHAR_VARIATION_SELECTOR =36 , UCHAR_NFD_INERT =37 , UCHAR_NFKD_INERT =38 ,
  UCHAR_NFC_INERT =39 , UCHAR_NFKC_INERT =40 , UCHAR_SEGMENT_STARTER =41 , UCHAR_PATTERN_SYNTAX =42 ,
  UCHAR_PATTERN_WHITE_SPACE =43 , UCHAR_POSIX_ALNUM =44 , UCHAR_POSIX_BLANK =45 , UCHAR_POSIX_GRAPH =46 ,
  UCHAR_POSIX_PRINT =47 , UCHAR_POSIX_XDIGIT =48 , UCHAR_CASED =49 , UCHAR_CASE_IGNORABLE =50 ,
  UCHAR_CHANGES_WHEN_LOWERCASED =51 , UCHAR_CHANGES_WHEN_UPPERCASED =52 , UCHAR_CHANGES_WHEN_TITLECASED =53 , UCHAR_CHANGES_WHEN_CASEFOLDED =54 ,
  UCHAR_CHANGES_WHEN_CASEMAPPED =55 , UCHAR_CHANGES_WHEN_NFKC_CASEFOLDED =56 , UCHAR_EMOJI =57 , UCHAR_EMOJI_PRESENTATION =58 ,
  UCHAR_EMOJI_MODIFIER =59 , UCHAR_EMOJI_MODIFIER_BASE =60 , UCHAR_EMOJI_COMPONENT =61 , UCHAR_REGIONAL_INDICATOR =62 ,
  UCHAR_PREPENDED_CONCATENATION_MARK =63 , UCHAR_EXTENDED_PICTOGRAPHIC =64 , UCHAR_BASIC_EMOJI =65 , UCHAR_EMOJI_KEYCAP_SEQUENCE =66 ,
  UCHAR_RGI_EMOJI_MODIFIER_SEQUENCE =67 , UCHAR_RGI_EMOJI_FLAG_SEQUENCE =68 , UCHAR_RGI_EMOJI_TAG_SEQUENCE =69 , UCHAR_RGI_EMOJI_ZWJ_SEQUENCE =70 ,
  UCHAR_RGI_EMOJI =71 , UCHAR_IDS_UNARY_OPERATOR =72 , UCHAR_ID_COMPAT_MATH_START =73 , UCHAR_ID_COMPAT_MATH_CONTINUE =74 ,
  UCHAR_BINARY_LIMIT =75 , UCHAR_BIDI_CLASS =0x1000 , UCHAR_INT_START =UCHAR_BIDI_CLASS , UCHAR_BLOCK =0x1001 ,
  UCHAR_CANONICAL_COMBINING_CLASS =0x1002 , UCHAR_DECOMPOSITION_TYPE =0x1003 , UCHAR_EAST_ASIAN_WIDTH =0x1004 , UCHAR_GENERAL_CATEGORY =0x1005 ,
  UCHAR_JOINING_GROUP =0x1006 , UCHAR_JOINING_TYPE =0x1007 , UCHAR_LINE_BREAK =0x1008 , UCHAR_NUMERIC_TYPE =0x1009 ,
  UCHAR_SCRIPT =0x100A , UCHAR_HANGUL_SYLLABLE_TYPE =0x100B , UCHAR_NFD_QUICK_CHECK =0x100C , UCHAR_NFKD_QUICK_CHECK =0x100D ,
  UCHAR_NFC_QUICK_CHECK =0x100E , UCHAR_NFKC_QUICK_CHECK =0x100F , UCHAR_LEAD_CANONICAL_COMBINING_CLASS =0x1010 , UCHAR_TRAIL_CANONICAL_COMBINING_CLASS =0x1011 ,
  UCHAR_GRAPHEME_CLUSTER_BREAK =0x1012 , UCHAR_SENTENCE_BREAK =0x1013 , UCHAR_WORD_BREAK =0x1014 , UCHAR_BIDI_PAIRED_BRACKET_TYPE =0x1015 ,
  UCHAR_INDIC_POSITIONAL_CATEGORY =0x1016 , UCHAR_INDIC_SYLLABIC_CATEGORY =0x1017 , UCHAR_VERTICAL_ORIENTATION =0x1018 , UCHAR_INT_LIMIT =0x1019 ,
  UCHAR_GENERAL_CATEGORY_MASK =0x2000 , UCHAR_MASK_START =UCHAR_GENERAL_CATEGORY_MASK , UCHAR_MASK_LIMIT =0x2001 , UCHAR_NUMERIC_VALUE =0x3000 ,
  UCHAR_DOUBLE_START =UCHAR_NUMERIC_VALUE , UCHAR_DOUBLE_LIMIT =0x3001 , UCHAR_AGE =0x4000 , UCHAR_STRING_START =UCHAR_AGE ,
  UCHAR_BIDI_MIRRORING_GLYPH =0x4001 , UCHAR_CASE_FOLDING =0x4002 , UCHAR_ISO_COMMENT =0x4003 , UCHAR_LOWERCASE_MAPPING =0x4004 ,
  UCHAR_NAME =0x4005 , UCHAR_SIMPLE_CASE_FOLDING =0x4006 , UCHAR_SIMPLE_LOWERCASE_MAPPING =0x4007 , UCHAR_SIMPLE_TITLECASE_MAPPING =0x4008 ,
  UCHAR_SIMPLE_UPPERCASE_MAPPING =0x4009 , UCHAR_TITLECASE_MAPPING =0x400A , UCHAR_UNICODE_1_NAME =0x400B , UCHAR_UPPERCASE_MAPPING =0x400C ,
  UCHAR_BIDI_PAIRED_BRACKET =0x400D , UCHAR_STRING_LIMIT =0x400E , UCHAR_SCRIPT_EXTENSIONS =0x7000 , UCHAR_OTHER_PROPERTY_START =UCHAR_SCRIPT_EXTENSIONS ,
  UCHAR_OTHER_PROPERTY_LIMIT =0x7001 , UCHAR_INVALID_CODE = -1
}
 Selection constants for Unicode properties. More...
 
enum  UCharCategory {
  U_UNASSIGNED = 0 , U_GENERAL_OTHER_TYPES = 0 , U_UPPERCASE_LETTER = 1 , U_LOWERCASE_LETTER = 2 ,
  U_TITLECASE_LETTER = 3 , U_MODIFIER_LETTER = 4 , U_OTHER_LETTER = 5 , U_NON_SPACING_MARK = 6 ,
  U_ENCLOSING_MARK = 7 , U_COMBINING_SPACING_MARK = 8 , U_DECIMAL_DIGIT_NUMBER = 9 , U_LETTER_NUMBER = 10 ,
  U_OTHER_NUMBER = 11 , U_SPACE_SEPARATOR = 12 , U_LINE_SEPARATOR = 13 , U_PARAGRAPH_SEPARATOR = 14 ,
  U_CONTROL_CHAR = 15 , U_FORMAT_CHAR = 16 , U_PRIVATE_USE_CHAR = 17 , U_SURROGATE = 18 ,
  U_DASH_PUNCTUATION = 19 , U_START_PUNCTUATION = 20 , U_END_PUNCTUATION = 21 , U_CONNECTOR_PUNCTUATION = 22 ,
  U_OTHER_PUNCTUATION = 23 , U_MATH_SYMBOL = 24 , U_CURRENCY_SYMBOL = 25 , U_MODIFIER_SYMBOL = 26 ,
  U_OTHER_SYMBOL = 27 , U_INITIAL_PUNCTUATION = 28 , U_FINAL_PUNCTUATION = 29 , U_CHAR_CATEGORY_COUNT
}
 Data for enumerated Unicode general category types. More...
 
enum  UCharDirection {
  U_LEFT_TO_RIGHT = 0 , U_RIGHT_TO_LEFT = 1 , U_EUROPEAN_NUMBER = 2 , U_EUROPEAN_NUMBER_SEPARATOR = 3 ,
  U_EUROPEAN_NUMBER_TERMINATOR = 4 , U_ARABIC_NUMBER = 5 , U_COMMON_NUMBER_SEPARATOR = 6 , U_BLOCK_SEPARATOR = 7 ,
  U_SEGMENT_SEPARATOR = 8 , U_WHITE_SPACE_NEUTRAL = 9 , U_OTHER_NEUTRAL = 10 , U_LEFT_TO_RIGHT_EMBEDDING = 11 ,
  U_LEFT_TO_RIGHT_OVERRIDE = 12 , U_RIGHT_TO_LEFT_ARABIC = 13 , U_RIGHT_TO_LEFT_EMBEDDING = 14 , U_RIGHT_TO_LEFT_OVERRIDE = 15 ,
  U_POP_DIRECTIONAL_FORMAT = 16 , U_DIR_NON_SPACING_MARK = 17 , U_BOUNDARY_NEUTRAL = 18 , U_FIRST_STRONG_ISOLATE = 19 ,
  U_LEFT_TO_RIGHT_ISOLATE = 20 , U_RIGHT_TO_LEFT_ISOLATE = 21 , U_POP_DIRECTIONAL_ISOLATE = 22 , U_CHAR_DIRECTION_COUNT
}
 This specifies the language directional property of a character set. More...
 
enum  UBidiPairedBracketType { U_BPT_NONE , U_BPT_OPEN , U_BPT_CLOSE , U_BPT_COUNT }
 Bidi Paired Bracket Type constants. More...
 
enum  UBlockCode {
  UBLOCK_NO_BLOCK = 0 , UBLOCK_BASIC_LATIN = 1 , UBLOCK_LATIN_1_SUPPLEMENT =2 , UBLOCK_LATIN_EXTENDED_A =3 ,
  UBLOCK_LATIN_EXTENDED_B =4 , UBLOCK_IPA_EXTENSIONS =5 , UBLOCK_SPACING_MODIFIER_LETTERS =6 , UBLOCK_COMBINING_DIACRITICAL_MARKS =7 ,
  UBLOCK_GREEK =8 , UBLOCK_CYRILLIC =9 , UBLOCK_ARMENIAN =10 , UBLOCK_HEBREW =11 ,
  UBLOCK_ARABIC =12 , UBLOCK_SYRIAC =13 , UBLOCK_THAANA =14 , UBLOCK_DEVANAGARI =15 ,
  UBLOCK_BENGALI =16 , UBLOCK_GURMUKHI =17 , UBLOCK_GUJARATI =18 , UBLOCK_ORIYA =19 ,
  UBLOCK_TAMIL =20 , UBLOCK_TELUGU =21 , UBLOCK_KANNADA =22 , UBLOCK_MALAYALAM =23 ,
  UBLOCK_SINHALA =24 , UBLOCK_THAI =25 , UBLOCK_LAO =26 , UBLOCK_TIBETAN =27 ,
  UBLOCK_MYANMAR =28 , UBLOCK_GEORGIAN =29 , UBLOCK_HANGUL_JAMO =30 , UBLOCK_ETHIOPIC =31 ,
  UBLOCK_CHEROKEE =32 , UBLOCK_UNIFIED_CANADIAN_ABORIGINAL_SYLLABICS =33 , UBLOCK_OGHAM =34 , UBLOCK_RUNIC =35 ,
  UBLOCK_KHMER =36 , UBLOCK_MONGOLIAN =37 , UBLOCK_LATIN_EXTENDED_ADDITIONAL =38 , UBLOCK_GREEK_EXTENDED =39 ,
  UBLOCK_GENERAL_PUNCTUATION =40 , UBLOCK_SUPERSCRIPTS_AND_SUBSCRIPTS =41 , UBLOCK_CURRENCY_SYMBOLS =42 , UBLOCK_COMBINING_MARKS_FOR_SYMBOLS =43 ,
  UBLOCK_LETTERLIKE_SYMBOLS =44 , UBLOCK_NUMBER_FORMS =45 , UBLOCK_ARROWS =46 , UBLOCK_MATHEMATICAL_OPERATORS =47 ,
  UBLOCK_MISCELLANEOUS_TECHNICAL =48 , UBLOCK_CONTROL_PICTURES =49 , UBLOCK_OPTICAL_CHARACTER_RECOGNITION =50 , UBLOCK_ENCLOSED_ALPHANUMERICS =51 ,
  UBLOCK_BOX_DRAWING =52 , UBLOCK_BLOCK_ELEMENTS =53 , UBLOCK_GEOMETRIC_SHAPES =54 , UBLOCK_MISCELLANEOUS_SYMBOLS =55 ,
  UBLOCK_DINGBATS =56 , UBLOCK_BRAILLE_PATTERNS =57 , UBLOCK_CJK_RADICALS_SUPPLEMENT =58 , UBLOCK_KANGXI_RADICALS =59 ,
  UBLOCK_IDEOGRAPHIC_DESCRIPTION_CHARACTERS =60 , UBLOCK_CJK_SYMBOLS_AND_PUNCTUATION =61 , UBLOCK_HIRAGANA =62 , UBLOCK_KATAKANA =63 ,
  UBLOCK_BOPOMOFO =64 , UBLOCK_HANGUL_COMPATIBILITY_JAMO =65 , UBLOCK_KANBUN =66 , UBLOCK_BOPOMOFO_EXTENDED =67 ,
  UBLOCK_ENCLOSED_CJK_LETTERS_AND_MONTHS =68 , UBLOCK_CJK_COMPATIBILITY =69 , UBLOCK_CJK_UNIFIED_IDEOGRAPHS_EXTENSION_A =70 , UBLOCK_CJK_UNIFIED_IDEOGRAPHS =71 ,
  UBLOCK_YI_SYLLABLES =72 , UBLOCK_YI_RADICALS =73 , UBLOCK_HANGUL_SYLLABLES =74 , UBLOCK_HIGH_SURROGATES =75 ,
  UBLOCK_HIGH_PRIVATE_USE_SURROGATES =76 , UBLOCK_LOW_SURROGATES =77 , UBLOCK_PRIVATE_USE_AREA =78 , UBLOCK_PRIVATE_USE = UBLOCK_PRIVATE_USE_AREA ,
  UBLOCK_CJK_COMPATIBILITY_IDEOGRAPHS =79 , UBLOCK_ALPHABETIC_PRESENTATION_FORMS =80 , UBLOCK_ARABIC_PRESENTATION_FORMS_A =81 , UBLOCK_COMBINING_HALF_MARKS =82 ,
  UBLOCK_CJK_COMPATIBILITY_FORMS =83 , UBLOCK_SMALL_FORM_VARIANTS =84 , UBLOCK_ARABIC_PRESENTATION_FORMS_B =85 , UBLOCK_SPECIALS =86 ,
  UBLOCK_HALFWIDTH_AND_FULLWIDTH_FORMS =87 , UBLOCK_OLD_ITALIC = 88 , UBLOCK_GOTHIC = 89 , UBLOCK_DESERET = 90 ,
  UBLOCK_BYZANTINE_MUSICAL_SYMBOLS = 91 , UBLOCK_MUSICAL_SYMBOLS = 92 , UBLOCK_MATHEMATICAL_ALPHANUMERIC_SYMBOLS = 93 , UBLOCK_CJK_UNIFIED_IDEOGRAPHS_EXTENSION_B = 94 ,
  UBLOCK_CJK_COMPATIBILITY_IDEOGRAPHS_SUPPLEMENT = 95 , UBLOCK_TAGS = 96 , UBLOCK_CYRILLIC_SUPPLEMENT = 97 , UBLOCK_CYRILLIC_SUPPLEMENTARY = UBLOCK_CYRILLIC_SUPPLEMENT ,
  UBLOCK_TAGALOG = 98 , UBLOCK_HANUNOO = 99 , UBLOCK_BUHID = 100 , UBLOCK_TAGBANWA = 101 ,
  UBLOCK_MISCELLANEOUS_MATHEMATICAL_SYMBOLS_A = 102 , UBLOCK_SUPPLEMENTAL_ARROWS_A = 103 , UBLOCK_SUPPLEMENTAL_ARROWS_B = 104 , UBLOCK_MISCELLANEOUS_MATHEMATICAL_SYMBOLS_B = 105 ,
  UBLOCK_SUPPLEMENTAL_MATHEMATICAL_OPERATORS = 106 , UBLOCK_KATAKANA_PHONETIC_EXTENSIONS = 107 , UBLOCK_VARIATION_SELECTORS = 108 , UBLOCK_SUPPLEMENTARY_PRIVATE_USE_AREA_A = 109 ,
  UBLOCK_SUPPLEMENTARY_PRIVATE_USE_AREA_B = 110 , UBLOCK_LIMBU = 111 , UBLOCK_TAI_LE = 112 , UBLOCK_KHMER_SYMBOLS = 113 ,
  UBLOCK_PHONETIC_EXTENSIONS = 114 , UBLOCK_MISCELLANEOUS_SYMBOLS_AND_ARROWS = 115 , UBLOCK_YIJING_HEXAGRAM_SYMBOLS = 116 , UBLOCK_LINEAR_B_SYLLABARY = 117 ,
  UBLOCK_LINEAR_B_IDEOGRAMS = 118 , UBLOCK_AEGEAN_NUMBERS = 119 , UBLOCK_UGARITIC = 120 , UBLOCK_SHAVIAN = 121 ,
  UBLOCK_OSMANYA = 122 , UBLOCK_CYPRIOT_SYLLABARY = 123 , UBLOCK_TAI_XUAN_JING_SYMBOLS = 124 , UBLOCK_VARIATION_SELECTORS_SUPPLEMENT = 125 ,
  UBLOCK_ANCIENT_GREEK_MUSICAL_NOTATION = 126 , UBLOCK_ANCIENT_GREEK_NUMBERS = 127 , UBLOCK_ARABIC_SUPPLEMENT = 128 , UBLOCK_BUGINESE = 129 ,
  UBLOCK_CJK_STROKES = 130 , UBLOCK_COMBINING_DIACRITICAL_MARKS_SUPPLEMENT = 131 , UBLOCK_COPTIC = 132 , UBLOCK_ETHIOPIC_EXTENDED = 133 ,
  UBLOCK_ETHIOPIC_SUPPLEMENT = 134 , UBLOCK_GEORGIAN_SUPPLEMENT = 135 , UBLOCK_GLAGOLITIC = 136 , UBLOCK_KHAROSHTHI = 137 ,
  UBLOCK_MODIFIER_TONE_LETTERS = 138 , UBLOCK_NEW_TAI_LUE = 139 , UBLOCK_OLD_PERSIAN = 140 , UBLOCK_PHONETIC_EXTENSIONS_SUPPLEMENT = 141 ,
  UBLOCK_SUPPLEMENTAL_PUNCTUATION = 142 , UBLOCK_SYLOTI_NAGRI = 143 , UBLOCK_TIFINAGH = 144 , UBLOCK_VERTICAL_FORMS = 145 ,
  UBLOCK_NKO = 146 , UBLOCK_BALINESE = 147 , UBLOCK_LATIN_EXTENDED_C = 148 , UBLOCK_LATIN_EXTENDED_D = 149 ,
  UBLOCK_PHAGS_PA = 150 , UBLOCK_PHOENICIAN = 151 , UBLOCK_CUNEIFORM = 152 , UBLOCK_CUNEIFORM_NUMBERS_AND_PUNCTUATION = 153 ,
  UBLOCK_COUNTING_ROD_NUMERALS = 154 , UBLOCK_SUNDANESE = 155 , UBLOCK_LEPCHA = 156 , UBLOCK_OL_CHIKI = 157 ,
  UBLOCK_CYRILLIC_EXTENDED_A = 158 , UBLOCK_VAI = 159 , UBLOCK_CYRILLIC_EXTENDED_B = 160 , UBLOCK_SAURASHTRA = 161 ,
  UBLOCK_KAYAH_LI = 162 , UBLOCK_REJANG = 163 , UBLOCK_CHAM = 164 , UBLOCK_ANCIENT_SYMBOLS = 165 ,
  UBLOCK_PHAISTOS_DISC = 166 , UBLOCK_LYCIAN = 167 , UBLOCK_CARIAN = 168 , UBLOCK_LYDIAN = 169 ,
  UBLOCK_MAHJONG_TILES = 170 , UBLOCK_DOMINO_TILES = 171 , UBLOCK_SAMARITAN = 172 , UBLOCK_UNIFIED_CANADIAN_ABORIGINAL_SYLLABICS_EXTENDED = 173 ,
  UBLOCK_TAI_THAM = 174 , UBLOCK_VEDIC_EXTENSIONS = 175 , UBLOCK_LISU = 176 , UBLOCK_BAMUM = 177 ,
  UBLOCK_COMMON_INDIC_NUMBER_FORMS = 178 , UBLOCK_DEVANAGARI_EXTENDED = 179 , UBLOCK_HANGUL_JAMO_EXTENDED_A = 180 , UBLOCK_JAVANESE = 181 ,
  UBLOCK_MYANMAR_EXTENDED_A = 182 , UBLOCK_TAI_VIET = 183 , UBLOCK_MEETEI_MAYEK = 184 , UBLOCK_HANGUL_JAMO_EXTENDED_B = 185 ,
  UBLOCK_IMPERIAL_ARAMAIC = 186 , UBLOCK_OLD_SOUTH_ARABIAN = 187 , UBLOCK_AVESTAN = 188 , UBLOCK_INSCRIPTIONAL_PARTHIAN = 189 ,
  UBLOCK_INSCRIPTIONAL_PAHLAVI = 190 , UBLOCK_OLD_TURKIC = 191 , UBLOCK_RUMI_NUMERAL_SYMBOLS = 192 , UBLOCK_KAITHI = 193 ,
  UBLOCK_EGYPTIAN_HIEROGLYPHS = 194 , UBLOCK_ENCLOSED_ALPHANUMERIC_SUPPLEMENT = 195 , UBLOCK_ENCLOSED_IDEOGRAPHIC_SUPPLEMENT = 196 , UBLOCK_CJK_UNIFIED_IDEOGRAPHS_EXTENSION_C = 197 ,
  UBLOCK_MANDAIC = 198 , UBLOCK_BATAK = 199 , UBLOCK_ETHIOPIC_EXTENDED_A = 200 , UBLOCK_BRAHMI = 201 ,
  UBLOCK_BAMUM_SUPPLEMENT = 202 , UBLOCK_KANA_SUPPLEMENT = 203 , UBLOCK_PLAYING_CARDS = 204 , UBLOCK_MISCELLANEOUS_SYMBOLS_AND_PICTOGRAPHS = 205 ,
  UBLOCK_EMOTICONS = 206 , UBLOCK_TRANSPORT_AND_MAP_SYMBOLS = 207 , UBLOCK_ALCHEMICAL_SYMBOLS = 208 , UBLOCK_CJK_UNIFIED_IDEOGRAPHS_EXTENSION_D = 209 ,
  UBLOCK_ARABIC_EXTENDED_A = 210 , UBLOCK_ARABIC_MATHEMATICAL_ALPHABETIC_SYMBOLS = 211 , UBLOCK_CHAKMA = 212 , UBLOCK_MEETEI_MAYEK_EXTENSIONS = 213 ,
  UBLOCK_MEROITIC_CURSIVE = 214 , UBLOCK_MEROITIC_HIEROGLYPHS = 215 , UBLOCK_MIAO = 216 , UBLOCK_SHARADA = 217 ,
  UBLOCK_SORA_SOMPENG = 218 , UBLOCK_SUNDANESE_SUPPLEMENT = 219 , UBLOCK_TAKRI = 220 , UBLOCK_BASSA_VAH = 221 ,
  UBLOCK_CAUCASIAN_ALBANIAN = 222 , UBLOCK_COPTIC_EPACT_NUMBERS = 223 , UBLOCK_COMBINING_DIACRITICAL_MARKS_EXTENDED = 224 , UBLOCK_DUPLOYAN = 225 ,
  UBLOCK_ELBASAN = 226 , UBLOCK_GEOMETRIC_SHAPES_EXTENDED = 227 , UBLOCK_GRANTHA = 228 , UBLOCK_KHOJKI = 229 ,
  UBLOCK_KHUDAWADI = 230 , UBLOCK_LATIN_EXTENDED_E = 231 , UBLOCK_LINEAR_A = 232 , UBLOCK_MAHAJANI = 233 ,
  UBLOCK_MANICHAEAN = 234 , UBLOCK_MENDE_KIKAKUI = 235 , UBLOCK_MODI = 236 , UBLOCK_MRO = 237 ,
  UBLOCK_MYANMAR_EXTENDED_B = 238 , UBLOCK_NABATAEAN = 239 , UBLOCK_OLD_NORTH_ARABIAN = 240 , UBLOCK_OLD_PERMIC = 241 ,
  UBLOCK_ORNAMENTAL_DINGBATS = 242 , UBLOCK_PAHAWH_HMONG = 243 , UBLOCK_PALMYRENE = 244 , UBLOCK_PAU_CIN_HAU = 245 ,
  UBLOCK_PSALTER_PAHLAVI = 246 , UBLOCK_SHORTHAND_FORMAT_CONTROLS = 247 , UBLOCK_SIDDHAM = 248 , UBLOCK_SINHALA_ARCHAIC_NUMBERS = 249 ,
  UBLOCK_SUPPLEMENTAL_ARROWS_C = 250 , UBLOCK_TIRHUTA = 251 , UBLOCK_WARANG_CITI = 252 , UBLOCK_AHOM = 253 ,
  UBLOCK_ANATOLIAN_HIEROGLYPHS = 254 , UBLOCK_CHEROKEE_SUPPLEMENT = 255 , UBLOCK_CJK_UNIFIED_IDEOGRAPHS_EXTENSION_E = 256 , UBLOCK_EARLY_DYNASTIC_CUNEIFORM = 257 ,
  UBLOCK_HATRAN = 258 , UBLOCK_MULTANI = 259 , UBLOCK_OLD_HUNGARIAN = 260 , UBLOCK_SUPPLEMENTAL_SYMBOLS_AND_PICTOGRAPHS = 261 ,
  UBLOCK_SUTTON_SIGNWRITING = 262 , UBLOCK_ADLAM = 263 , UBLOCK_BHAIKSUKI = 264 , UBLOCK_CYRILLIC_EXTENDED_C = 265 ,
  UBLOCK_GLAGOLITIC_SUPPLEMENT = 266 , UBLOCK_IDEOGRAPHIC_SYMBOLS_AND_PUNCTUATION = 267 , UBLOCK_MARCHEN = 268 , UBLOCK_MONGOLIAN_SUPPLEMENT = 269 ,
  UBLOCK_NEWA = 270 , UBLOCK_OSAGE = 271 , UBLOCK_TANGUT = 272 , UBLOCK_TANGUT_COMPONENTS = 273 ,
  UBLOCK_CJK_UNIFIED_IDEOGRAPHS_EXTENSION_F = 274 , UBLOCK_KANA_EXTENDED_A = 275 , UBLOCK_MASARAM_GONDI = 276 , UBLOCK_NUSHU = 277 ,
  UBLOCK_SOYOMBO = 278 , UBLOCK_SYRIAC_SUPPLEMENT = 279 , UBLOCK_ZANABAZAR_SQUARE = 280 , UBLOCK_CHESS_SYMBOLS = 281 ,
  UBLOCK_DOGRA = 282 , UBLOCK_GEORGIAN_EXTENDED = 283 , UBLOCK_GUNJALA_GONDI = 284 , UBLOCK_HANIFI_ROHINGYA = 285 ,
  UBLOCK_INDIC_SIYAQ_NUMBERS = 286 , UBLOCK_MAKASAR = 287 , UBLOCK_MAYAN_NUMERALS = 288 , UBLOCK_MEDEFAIDRIN = 289 ,
  UBLOCK_OLD_SOGDIAN = 290 , UBLOCK_SOGDIAN = 291 , UBLOCK_EGYPTIAN_HIEROGLYPH_FORMAT_CONTROLS = 292 , UBLOCK_ELYMAIC = 293 ,
  UBLOCK_NANDINAGARI = 294 , UBLOCK_NYIAKENG_PUACHUE_HMONG = 295 , UBLOCK_OTTOMAN_SIYAQ_NUMBERS = 296 , UBLOCK_SMALL_KANA_EXTENSION = 297 ,
  UBLOCK_SYMBOLS_AND_PICTOGRAPHS_EXTENDED_A = 298 , UBLOCK_TAMIL_SUPPLEMENT = 299 , UBLOCK_WANCHO = 300 , UBLOCK_CHORASMIAN = 301 ,
  UBLOCK_CJK_UNIFIED_IDEOGRAPHS_EXTENSION_G = 302 , UBLOCK_DIVES_AKURU = 303 , UBLOCK_KHITAN_SMALL_SCRIPT = 304 , UBLOCK_LISU_SUPPLEMENT = 305 ,
  UBLOCK_SYMBOLS_FOR_LEGACY_COMPUTING = 306 , UBLOCK_TANGUT_SUPPLEMENT = 307 , UBLOCK_YEZIDI = 308 , UBLOCK_ARABIC_EXTENDED_B = 309 ,
  UBLOCK_CYPRO_MINOAN = 310 , UBLOCK_ETHIOPIC_EXTENDED_B = 311 , UBLOCK_KANA_EXTENDED_B = 312 , UBLOCK_LATIN_EXTENDED_F = 313 ,
  UBLOCK_LATIN_EXTENDED_G = 314 , UBLOCK_OLD_UYGHUR = 315 , UBLOCK_TANGSA = 316 , UBLOCK_TOTO = 317 ,
  UBLOCK_UNIFIED_CANADIAN_ABORIGINAL_SYLLABICS_EXTENDED_A = 318 , UBLOCK_VITHKUQI = 319 , UBLOCK_ZNAMENNY_MUSICAL_NOTATION = 320 , UBLOCK_ARABIC_EXTENDED_C = 321 ,
  UBLOCK_CJK_UNIFIED_IDEOGRAPHS_EXTENSION_H = 322 , UBLOCK_CYRILLIC_EXTENDED_D = 323 , UBLOCK_DEVANAGARI_EXTENDED_A = 324 , UBLOCK_KAKTOVIK_NUMERALS = 325 ,
  UBLOCK_KAWI = 326 , UBLOCK_NAG_MUNDARI = 327 , UBLOCK_CJK_UNIFIED_IDEOGRAPHS_EXTENSION_I = 328 , UBLOCK_COUNT = 329 ,
  UBLOCK_INVALID_CODE =-1
}
 Constants for Unicode blocks, see the Unicode Data file Blocks.txt. More...
 
enum  UEastAsianWidth {
  U_EA_NEUTRAL , U_EA_AMBIGUOUS , U_EA_HALFWIDTH , U_EA_FULLWIDTH ,
  U_EA_NARROW , U_EA_WIDE , U_EA_COUNT
}
 East Asian Width constants. More...
 
enum  UCharNameChoice {
  U_UNICODE_CHAR_NAME , U_UNICODE_10_CHAR_NAME , U_EXTENDED_CHAR_NAME = U_UNICODE_CHAR_NAME+2 , U_CHAR_NAME_ALIAS ,
  U_CHAR_NAME_CHOICE_COUNT
}
 Selector constants for u_charName(). More...
 
enum  UPropertyNameChoice { U_SHORT_PROPERTY_NAME , U_LONG_PROPERTY_NAME , U_PROPERTY_NAME_CHOICE_COUNT }
 Selector constants for u_getPropertyName() and u_getPropertyValueName(). More...
 
enum  UDecompositionType {
  U_DT_NONE , U_DT_CANONICAL , U_DT_COMPAT , U_DT_CIRCLE ,
  U_DT_FINAL , U_DT_FONT , U_DT_FRACTION , U_DT_INITIAL ,
  U_DT_ISOLATED , U_DT_MEDIAL , U_DT_NARROW , U_DT_NOBREAK ,
  U_DT_SMALL , U_DT_SQUARE , U_DT_SUB , U_DT_SUPER ,
  U_DT_VERTICAL , U_DT_WIDE , U_DT_COUNT
}
 Decomposition Type constants. More...
 
enum  UJoiningType {
  U_JT_NON_JOINING , U_JT_JOIN_CAUSING , U_JT_DUAL_JOINING , U_JT_LEFT_JOINING ,
  U_JT_RIGHT_JOINING , U_JT_TRANSPARENT , U_JT_COUNT
}
 Joining Type constants. More...
 
enum  UJoiningGroup {
  U_JG_NO_JOINING_GROUP , U_JG_AIN , U_JG_ALAPH , U_JG_ALEF ,
  U_JG_BEH , U_JG_BETH , U_JG_DAL , U_JG_DALATH_RISH ,
  U_JG_E , U_JG_FEH , U_JG_FINAL_SEMKATH , U_JG_GAF ,
  U_JG_GAMAL , U_JG_HAH , U_JG_TEH_MARBUTA_GOAL , U_JG_HAMZA_ON_HEH_GOAL =U_JG_TEH_MARBUTA_GOAL ,
  U_JG_HE , U_JG_HEH , U_JG_HEH_GOAL , U_JG_HETH ,
  U_JG_KAF , U_JG_KAPH , U_JG_KNOTTED_HEH , U_JG_LAM ,
  U_JG_LAMADH , U_JG_MEEM , U_JG_MIM , U_JG_NOON ,
  U_JG_NUN , U_JG_PE , U_JG_QAF , U_JG_QAPH ,
  U_JG_REH , U_JG_REVERSED_PE , U_JG_SAD , U_JG_SADHE ,
  U_JG_SEEN , U_JG_SEMKATH , U_JG_SHIN , U_JG_SWASH_KAF ,
  U_JG_SYRIAC_WAW , U_JG_TAH , U_JG_TAW , U_JG_TEH_MARBUTA ,
  U_JG_TETH , U_JG_WAW , U_JG_YEH , U_JG_YEH_BARREE ,
  U_JG_YEH_WITH_TAIL , U_JG_YUDH , U_JG_YUDH_HE , U_JG_ZAIN ,
  U_JG_FE , U_JG_KHAPH , U_JG_ZHAIN , U_JG_BURUSHASKI_YEH_BARREE ,
  U_JG_FARSI_YEH , U_JG_NYA , U_JG_ROHINGYA_YEH , U_JG_MANICHAEAN_ALEPH ,
  U_JG_MANICHAEAN_AYIN , U_JG_MANICHAEAN_BETH , U_JG_MANICHAEAN_DALETH , U_JG_MANICHAEAN_DHAMEDH ,
  U_JG_MANICHAEAN_FIVE , U_JG_MANICHAEAN_GIMEL , U_JG_MANICHAEAN_HETH , U_JG_MANICHAEAN_HUNDRED ,
  U_JG_MANICHAEAN_KAPH , U_JG_MANICHAEAN_LAMEDH , U_JG_MANICHAEAN_MEM , U_JG_MANICHAEAN_NUN ,
  U_JG_MANICHAEAN_ONE , U_JG_MANICHAEAN_PE , U_JG_MANICHAEAN_QOPH , U_JG_MANICHAEAN_RESH ,
  U_JG_MANICHAEAN_SADHE , U_JG_MANICHAEAN_SAMEKH , U_JG_MANICHAEAN_TAW , U_JG_MANICHAEAN_TEN ,
  U_JG_MANICHAEAN_TETH , U_JG_MANICHAEAN_THAMEDH , U_JG_MANICHAEAN_TWENTY , U_JG_MANICHAEAN_WAW ,
  U_JG_MANICHAEAN_YODH , U_JG_MANICHAEAN_ZAYIN , U_JG_STRAIGHT_WAW , U_JG_AFRICAN_FEH ,
  U_JG_AFRICAN_NOON , U_JG_AFRICAN_QAF , U_JG_MALAYALAM_BHA , U_JG_MALAYALAM_JA ,
  U_JG_MALAYALAM_LLA , U_JG_MALAYALAM_LLLA , U_JG_MALAYALAM_NGA , U_JG_MALAYALAM_NNA ,
  U_JG_MALAYALAM_NNNA , U_JG_MALAYALAM_NYA , U_JG_MALAYALAM_RA , U_JG_MALAYALAM_SSA ,
  U_JG_MALAYALAM_TTA , U_JG_HANIFI_ROHINGYA_KINNA_YA , U_JG_HANIFI_ROHINGYA_PA , U_JG_THIN_YEH ,
  U_JG_VERTICAL_TAIL , U_JG_COUNT
}
 Joining Group constants. More...
 
enum  UGraphemeClusterBreak {
  U_GCB_OTHER = 0 , U_GCB_CONTROL = 1 , U_GCB_CR = 2 , U_GCB_EXTEND = 3 ,
  U_GCB_L = 4 , U_GCB_LF = 5 , U_GCB_LV = 6 , U_GCB_LVT = 7 ,
  U_GCB_T = 8 , U_GCB_V = 9 , U_GCB_SPACING_MARK = 10 , U_GCB_PREPEND = 11 ,
  U_GCB_REGIONAL_INDICATOR = 12 , U_GCB_E_BASE = 13 , U_GCB_E_BASE_GAZ = 14 , U_GCB_E_MODIFIER = 15 ,
  U_GCB_GLUE_AFTER_ZWJ = 16 , U_GCB_ZWJ = 17 , U_GCB_COUNT = 18
}
 Grapheme Cluster Break constants. More...
 
enum  UWordBreakValues {
  U_WB_OTHER = 0 , U_WB_ALETTER = 1 , U_WB_FORMAT = 2 , U_WB_KATAKANA = 3 ,
  U_WB_MIDLETTER = 4 , U_WB_MIDNUM = 5 , U_WB_NUMERIC = 6 , U_WB_EXTENDNUMLET = 7 ,
  U_WB_CR = 8 , U_WB_EXTEND = 9 , U_WB_LF = 10 , U_WB_MIDNUMLET =11 ,
  U_WB_NEWLINE =12 , U_WB_REGIONAL_INDICATOR = 13 , U_WB_HEBREW_LETTER = 14 , U_WB_SINGLE_QUOTE = 15 ,
  U_WB_DOUBLE_QUOTE = 16 , U_WB_E_BASE = 17 , U_WB_E_BASE_GAZ = 18 , U_WB_E_MODIFIER = 19 ,
  U_WB_GLUE_AFTER_ZWJ = 20 , U_WB_ZWJ = 21 , U_WB_WSEGSPACE = 22 , U_WB_COUNT = 23
}
 Word Break constants. More...
 
enum  USentenceBreak {
  U_SB_OTHER = 0 , U_SB_ATERM = 1 , U_SB_CLOSE = 2 , U_SB_FORMAT = 3 ,
  U_SB_LOWER = 4 , U_SB_NUMERIC = 5 , U_SB_OLETTER = 6 , U_SB_SEP = 7 ,
  U_SB_SP = 8 , U_SB_STERM = 9 , U_SB_UPPER = 10 , U_SB_CR = 11 ,
  U_SB_EXTEND = 12 , U_SB_LF = 13 , U_SB_SCONTINUE = 14 , U_SB_COUNT = 15
}
 Sentence Break constants. More...
 
enum  ULineBreak {
  U_LB_UNKNOWN = 0 , U_LB_AMBIGUOUS = 1 , U_LB_ALPHABETIC = 2 , U_LB_BREAK_BOTH = 3 ,
  U_LB_BREAK_AFTER = 4 , U_LB_BREAK_BEFORE = 5 , U_LB_MANDATORY_BREAK = 6 , U_LB_CONTINGENT_BREAK = 7 ,
  U_LB_CLOSE_PUNCTUATION = 8 , U_LB_COMBINING_MARK = 9 , U_LB_CARRIAGE_RETURN = 10 , U_LB_EXCLAMATION = 11 ,
  U_LB_GLUE = 12 , U_LB_HYPHEN = 13 , U_LB_IDEOGRAPHIC = 14 , U_LB_INSEPARABLE = 15 ,
  U_LB_INSEPERABLE = U_LB_INSEPARABLE , U_LB_INFIX_NUMERIC = 16 , U_LB_LINE_FEED = 17 , U_LB_NONSTARTER = 18 ,
  U_LB_NUMERIC = 19 , U_LB_OPEN_PUNCTUATION = 20 , U_LB_POSTFIX_NUMERIC = 21 , U_LB_PREFIX_NUMERIC = 22 ,
  U_LB_QUOTATION = 23 , U_LB_COMPLEX_CONTEXT = 24 , U_LB_SURROGATE = 25 , U_LB_SPACE = 26 ,
  U_LB_BREAK_SYMBOLS = 27 , U_LB_ZWSPACE = 28 , U_LB_NEXT_LINE = 29 , U_LB_WORD_JOINER = 30 ,
  U_LB_H2 = 31 , U_LB_H3 = 32 , U_LB_JL = 33 , U_LB_JT = 34 ,
  U_LB_JV = 35 , U_LB_CLOSE_PARENTHESIS = 36 , U_LB_CONDITIONAL_JAPANESE_STARTER = 37 , U_LB_HEBREW_LETTER = 38 ,
  U_LB_REGIONAL_INDICATOR = 39 , U_LB_E_BASE = 40 , U_LB_E_MODIFIER = 41 , U_LB_ZWJ = 42 ,
  U_LB_AKSARA = 43 , U_LB_AKSARA_PREBASE = 44 , U_LB_AKSARA_START = 45 , U_LB_VIRAMA_FINAL = 46 ,
  U_LB_VIRAMA = 47 , U_LB_COUNT = 48
}
 Line Break constants. More...
 
enum  UNumericType {
  U_NT_NONE , U_NT_DECIMAL , U_NT_DIGIT , U_NT_NUMERIC ,
  U_NT_COUNT
}
 Numeric Type constants. More...
 
enum  UHangulSyllableType {
  U_HST_NOT_APPLICABLE , U_HST_LEADING_JAMO , U_HST_VOWEL_JAMO , U_HST_TRAILING_JAMO ,
  U_HST_LV_SYLLABLE , U_HST_LVT_SYLLABLE , U_HST_COUNT
}
 Hangul Syllable Type constants. More...
 
enum  UIndicPositionalCategory {
  U_INPC_NA , U_INPC_BOTTOM , U_INPC_BOTTOM_AND_LEFT , U_INPC_BOTTOM_AND_RIGHT ,
  U_INPC_LEFT , U_INPC_LEFT_AND_RIGHT , U_INPC_OVERSTRUCK , U_INPC_RIGHT ,
  U_INPC_TOP , U_INPC_TOP_AND_BOTTOM , U_INPC_TOP_AND_BOTTOM_AND_RIGHT , U_INPC_TOP_AND_LEFT ,
  U_INPC_TOP_AND_LEFT_AND_RIGHT , U_INPC_TOP_AND_RIGHT , U_INPC_VISUAL_ORDER_LEFT , U_INPC_TOP_AND_BOTTOM_AND_LEFT
}
 Indic Positional Category constants. More...
 
enum  UIndicSyllabicCategory {
  U_INSC_OTHER , U_INSC_AVAGRAHA , U_INSC_BINDU , U_INSC_BRAHMI_JOINING_NUMBER ,
  U_INSC_CANTILLATION_MARK , U_INSC_CONSONANT , U_INSC_CONSONANT_DEAD , U_INSC_CONSONANT_FINAL ,
  U_INSC_CONSONANT_HEAD_LETTER , U_INSC_CONSONANT_INITIAL_POSTFIXED , U_INSC_CONSONANT_KILLER , U_INSC_CONSONANT_MEDIAL ,
  U_INSC_CONSONANT_PLACEHOLDER , U_INSC_CONSONANT_PRECEDING_REPHA , U_INSC_CONSONANT_PREFIXED , U_INSC_CONSONANT_SUBJOINED ,
  U_INSC_CONSONANT_SUCCEEDING_REPHA , U_INSC_CONSONANT_WITH_STACKER , U_INSC_GEMINATION_MARK , U_INSC_INVISIBLE_STACKER ,
  U_INSC_JOINER , U_INSC_MODIFYING_LETTER , U_INSC_NON_JOINER , U_INSC_NUKTA ,
  U_INSC_NUMBER , U_INSC_NUMBER_JOINER , U_INSC_PURE_KILLER , U_INSC_REGISTER_SHIFTER ,
  U_INSC_SYLLABLE_MODIFIER , U_INSC_TONE_LETTER , U_INSC_TONE_MARK , U_INSC_VIRAMA ,
  U_INSC_VISARGA , U_INSC_VOWEL , U_INSC_VOWEL_DEPENDENT , U_INSC_VOWEL_INDEPENDENT
}
 Indic Syllabic Category constants. More...
 
enum  UVerticalOrientation { U_VO_ROTATED , U_VO_TRANSFORMED_ROTATED , U_VO_TRANSFORMED_UPRIGHT , U_VO_UPRIGHT }
 Vertical Orientation constants. More...
 

Functions

U_CAPI UBool u_hasBinaryProperty (UChar32 c, UProperty which)
 Check a binary Unicode property for a code point.
 
U_CAPI UBool u_stringHasBinaryProperty (const UChar *s, int32_t length, UProperty which)
 Returns true if the property is true for the string.
 
U_CAPI const USetu_getBinaryPropertySet (UProperty property, UErrorCode *pErrorCode)
 Returns a frozen USet for a binary property.
 
U_CAPI UBool u_isUAlphabetic (UChar32 c)
 Check if a code point has the Alphabetic Unicode property.
 
U_CAPI UBool u_isULowercase (UChar32 c)
 Check if a code point has the Lowercase Unicode property.
 
U_CAPI UBool u_isUUppercase (UChar32 c)
 Check if a code point has the Uppercase Unicode property.
 
U_CAPI UBool u_isUWhiteSpace (UChar32 c)
 Check if a code point has the White_Space Unicode property.
 
U_CAPI int32_t u_getIntPropertyValue (UChar32 c, UProperty which)
 Get the property value for an enumerated or integer Unicode property for a code point.
 
U_CAPI int32_t u_getIntPropertyMinValue (UProperty which)
 Get the minimum value for an enumerated/integer/binary Unicode property.
 
U_CAPI int32_t u_getIntPropertyMaxValue (UProperty which)
 Get the maximum value for an enumerated/integer/binary Unicode property.
 
U_CAPI const UCPMapu_getIntPropertyMap (UProperty property, UErrorCode *pErrorCode)
 Returns an immutable UCPMap for an enumerated/catalog/int-valued property.
 
U_CAPI double u_getNumericValue (UChar32 c)
 Get the numeric value for a Unicode code point as defined in the Unicode Character Database.
 
U_CAPI UBool u_islower (UChar32 c)
 Determines whether the specified code point has the general category "Ll" (lowercase letter).
 
U_CAPI UBool u_isupper (UChar32 c)
 Determines whether the specified code point has the general category "Lu" (uppercase letter).
 
U_CAPI UBool u_istitle (UChar32 c)
 Determines whether the specified code point is a titlecase letter.
 
U_CAPI UBool u_isdigit (UChar32 c)
 Determines whether the specified code point is a digit character according to Java.
 
U_CAPI UBool u_isalpha (UChar32 c)
 Determines whether the specified code point is a letter character.
 
U_CAPI UBool u_isalnum (UChar32 c)
 Determines whether the specified code point is an alphanumeric character (letter or digit) according to Java.
 
U_CAPI UBool u_isxdigit (UChar32 c)
 Determines whether the specified code point is a hexadecimal digit.
 
U_CAPI UBool u_ispunct (UChar32 c)
 Determines whether the specified code point is a punctuation character.
 
U_CAPI UBool u_isgraph (UChar32 c)
 Determines whether the specified code point is a "graphic" character (printable, excluding spaces).
 
U_CAPI UBool u_isblank (UChar32 c)
 Determines whether the specified code point is a "blank" or "horizontal space", a character that visibly separates words on a line.
 
U_CAPI UBool u_isdefined (UChar32 c)
 Determines whether the specified code point is "defined", which usually means that it is assigned a character.
 
U_CAPI UBool u_isspace (UChar32 c)
 Determines if the specified character is a space character or not.
 
U_CAPI UBool u_isJavaSpaceChar (UChar32 c)
 Determine if the specified code point is a space character according to Java.
 
U_CAPI UBool u_isWhitespace (UChar32 c)
 Determines if the specified code point is a whitespace character according to Java/ICU.
 
U_CAPI UBool u_iscntrl (UChar32 c)
 Determines whether the specified code point is a control character (as defined by this function).
 
U_CAPI UBool u_isISOControl (UChar32 c)
 Determines whether the specified code point is an ISO control code.
 
U_CAPI UBool u_isprint (UChar32 c)
 Determines whether the specified code point is a printable character.
 
U_CAPI UBool u_isbase (UChar32 c)
 Non-standard: Determines whether the specified code point is a base character.
 
U_CAPI UCharDirection u_charDirection (UChar32 c)
 Returns the bidirectional category value for the code point, which is used in the Unicode bidirectional algorithm (UAX #9 http://www.unicode.org/reports/tr9/).
 
U_CAPI UBool u_isMirrored (UChar32 c)
 Determines whether the code point has the Bidi_Mirrored property.
 
U_CAPI UChar32 u_charMirror (UChar32 c)
 Maps the specified character to a "mirror-image" character.
 
U_CAPI UChar32 u_getBidiPairedBracket (UChar32 c)
 Maps the specified character to its paired bracket character.
 
U_CAPI int8_t u_charType (UChar32 c)
 Returns the general category value for the code point.
 
U_CAPI void u_enumCharTypes (UCharEnumTypeRange *enumRange, const void *context)
 Enumerate efficiently all code points with their Unicode general categories.
 
U_CAPI uint8_t u_getCombiningClass (UChar32 c)
 Returns the combining class of the code point as specified in UnicodeData.txt.
 
U_CAPI int32_t u_charDigitValue (UChar32 c)
 Returns the decimal digit value of a decimal digit character.
 
U_CAPI UBlockCode ublock_getCode (UChar32 c)
 Returns the Unicode allocation block that contains the character.
 
U_CAPI int32_t u_charName (UChar32 code, UCharNameChoice nameChoice, char *buffer, int32_t bufferLength, UErrorCode *pErrorCode)
 Retrieve the name of a Unicode character.
 
int32_t u_getISOComment (UChar32 c, char *dest, int32_t destCapacity, UErrorCode *pErrorCode)
 Returns an empty string.
 
U_CAPI UChar32 u_charFromName (UCharNameChoice nameChoice, const char *name, UErrorCode *pErrorCode)
 Find a Unicode character by its name and return its code point value.
 
U_CAPI void u_enumCharNames (UChar32 start, UChar32 limit, UEnumCharNamesFn *fn, void *context, UCharNameChoice nameChoice, UErrorCode *pErrorCode)
 Enumerate all assigned Unicode characters between the start and limit code points (start inclusive, limit exclusive) and call a function for each, passing the code point value and the character name.
 
U_CAPI const char * u_getPropertyName (UProperty property, UPropertyNameChoice nameChoice)
 Return the Unicode name for a given property, as given in the Unicode database file PropertyAliases.txt.
 
U_CAPI UProperty u_getPropertyEnum (const char *alias)
 Return the UProperty enum for a given property name, as specified in the Unicode database file PropertyAliases.txt.
 
U_CAPI const char * u_getPropertyValueName (UProperty property, int32_t value, UPropertyNameChoice nameChoice)
 Return the Unicode name for a given property value, as given in the Unicode database file PropertyValueAliases.txt.
 
U_CAPI int32_t u_getPropertyValueEnum (UProperty property, const char *alias)
 Return the property value integer for a given value name, as specified in the Unicode database file PropertyValueAliases.txt.
 
U_CAPI UBool u_isIDStart (UChar32 c)
 Determines if the specified character is permissible as the first character in an identifier according to UAX #31 Unicode Identifier and Pattern Syntax.
 
U_CAPI UBool u_isIDPart (UChar32 c)
 Determines if the specified character is permissible as a non-initial character of an identifier according to UAX #31 Unicode Identifier and Pattern Syntax.
 
U_CAPI UBool u_isIDIgnorable (UChar32 c)
 Determines if the specified character should be regarded as an ignorable character in an identifier, according to Java.
 
U_CAPI UBool u_isJavaIDStart (UChar32 c)
 Determines if the specified character is permissible as the first character in a Java identifier.
 
U_CAPI UBool u_isJavaIDPart (UChar32 c)
 Determines if the specified character is permissible in a Java identifier.
 
U_CAPI UChar32 u_tolower (UChar32 c)
 The given character is mapped to its lowercase equivalent according to UnicodeData.txt; if the character has no lowercase equivalent, the character itself is returned.
 
U_CAPI UChar32 u_toupper (UChar32 c)
 The given character is mapped to its uppercase equivalent according to UnicodeData.txt; if the character has no uppercase equivalent, the character itself is returned.
 
U_CAPI UChar32 u_totitle (UChar32 c)
 The given character is mapped to its titlecase equivalent according to UnicodeData.txt; if none is defined, the character itself is returned.
 
U_CAPI UChar32 u_foldCase (UChar32 c, uint32_t options)
 The given character is mapped to its case folding equivalent according to UnicodeData.txt and CaseFolding.txt; if the character has no case folding equivalent, the character itself is returned.
 
U_CAPI int32_t u_digit (UChar32 ch, int8_t radix)
 Returns the decimal digit value of the code point in the specified radix.
 
U_CAPI UChar32 u_forDigit (int32_t digit, int8_t radix)
 Determines the character representation for a specific digit in the specified radix.
 
U_CAPI void u_charAge (UChar32 c, UVersionInfo versionArray)
 Get the "age" of the code point.
 
U_CAPI void u_getUnicodeVersion (UVersionInfo versionArray)
 Gets the Unicode version information.
 
U_CAPI int32_t u_getFC_NFKC_Closure (UChar32 c, UChar *dest, int32_t destCapacity, UErrorCode *pErrorCode)
 Get the FC_NFKC_Closure property string for a character.
 

Detailed Description

C API: Unicode Properties.

This C API provides low-level access to the Unicode Character Database. In addition to raw property values, some convenience functions calculate derived properties, for example for Java-style programming.

Unicode assigns each code point (not just assigned character) values for many properties. Most of them are simple boolean flags, or constants from a small enumerated list. For some properties, values are strings or other relatively more complex types.

For more information see "About the Unicode Character Database" (http://www.unicode.org/ucd/) and the ICU User Guide chapter on Properties (https://unicode-org.github.io/icu/userguide/strings/properties).

Many properties are accessible via generic functions that take a UProperty selector.

Many functions are designed to match java.lang.Character functions. See the individual function documentation, and see the JDK 1.4 java.lang.Character documentation at http://java.sun.com/j2se/1.4/docs/api/java/lang/Character.html

There are also functions that provide easy migration from C/POSIX functions like isblank(). Their use is generally discouraged because the C/POSIX standards do not define their semantics beyond the ASCII range, which means that different implementations exhibit very different behavior. Instead, Unicode properties should be used directly.

There are also only a few, broad C/POSIX character classes, and they tend to be used for conflicting purposes. For example, the "isalpha()" class is sometimes used to determine word boundaries, while a more sophisticated approach would at least distinguish initial letters from continuation characters (the latter including combining marks). (In ICU, BreakIterator is the most sophisticated API for word boundaries.) Another example: There is no "istitle()" class for titlecase characters.

ICU 3.4 and later provides API access for all twelve C/POSIX character classes. ICU implements them according to the Standard Recommendations in Annex C: Compatibility Properties of UTS #18 Unicode Regular Expressions (http://www.unicode.org/reports/tr18/#Compatibility_Properties).

API access for C/POSIX character classes is as follows:

Note: Some of the u_isxyz() functions in uchar.h predate, and do not match, the Standard Recommendations in UTS #18. Instead, they match Java functions according to their API documentation.

The C/POSIX character classes are also available in UnicodeSet patterns, using patterns like [:graph:] or \p{graph}.

Note: There are several ICU whitespace functions. Comparison:

Definition in file uchar.h.

Macro Definition Documentation

◆ U_GC_C_MASK

Mask constant for multiple UCharCategory bits (C Others).

Stable
ICU 2.1

Definition at line 976 of file uchar.h.

◆ U_GC_CC_MASK

#define U_GC_CC_MASK   U_MASK(U_CONTROL_CHAR)

Mask constant for a UCharCategory.

Stable
ICU 2.1

Definition at line 924 of file uchar.h.

◆ U_GC_CF_MASK

#define U_GC_CF_MASK   U_MASK(U_FORMAT_CHAR)

Mask constant for a UCharCategory.

Stable
ICU 2.1

Definition at line 926 of file uchar.h.

◆ U_GC_CN_MASK

#define U_GC_CN_MASK   U_MASK(U_GENERAL_OTHER_TYPES)

U_GC_XX_MASK constants are bit flags corresponding to Unicode general category values.

For each category, the nth bit is set if the numeric value of the corresponding UCharCategory constant is n.

There are also some U_GC_Y_MASK constants for groups of general categories like L for all letter categories.

See also
u_charType
U_GET_GC_MASK
UCharCategory
Stable
ICU 2.1

Definition at line 889 of file uchar.h.

◆ U_GC_CO_MASK

#define U_GC_CO_MASK   U_MASK(U_PRIVATE_USE_CHAR)

Mask constant for a UCharCategory.

Stable
ICU 2.1

Definition at line 928 of file uchar.h.

◆ U_GC_CS_MASK

#define U_GC_CS_MASK   U_MASK(U_SURROGATE)

Mask constant for a UCharCategory.

Stable
ICU 2.1

Definition at line 930 of file uchar.h.

◆ U_GC_L_MASK

Mask constant for multiple UCharCategory bits (L Letters).

Stable
ICU 2.1

Definition at line 959 of file uchar.h.

◆ U_GC_LC_MASK

#define U_GC_LC_MASK    (U_GC_LU_MASK|U_GC_LL_MASK|U_GC_LT_MASK)

Mask constant for multiple UCharCategory bits (LC Cased Letters).

Stable
ICU 2.1

Definition at line 963 of file uchar.h.

◆ U_GC_LL_MASK

#define U_GC_LL_MASK   U_MASK(U_LOWERCASE_LETTER)

Mask constant for a UCharCategory.

Stable
ICU 2.1

Definition at line 894 of file uchar.h.

◆ U_GC_LM_MASK

#define U_GC_LM_MASK   U_MASK(U_MODIFIER_LETTER)

Mask constant for a UCharCategory.

Stable
ICU 2.1

Definition at line 898 of file uchar.h.

◆ U_GC_LO_MASK

#define U_GC_LO_MASK   U_MASK(U_OTHER_LETTER)

Mask constant for a UCharCategory.

Stable
ICU 2.1

Definition at line 900 of file uchar.h.

◆ U_GC_LT_MASK

#define U_GC_LT_MASK   U_MASK(U_TITLECASE_LETTER)

Mask constant for a UCharCategory.

Stable
ICU 2.1

Definition at line 896 of file uchar.h.

◆ U_GC_LU_MASK

#define U_GC_LU_MASK   U_MASK(U_UPPERCASE_LETTER)

Mask constant for a UCharCategory.

Stable
ICU 2.1

Definition at line 892 of file uchar.h.

◆ U_GC_M_MASK

#define U_GC_M_MASK   (U_GC_MN_MASK|U_GC_ME_MASK|U_GC_MC_MASK)

Mask constant for multiple UCharCategory bits (M Marks).

Stable
ICU 2.1

Definition at line 967 of file uchar.h.

◆ U_GC_MC_MASK

#define U_GC_MC_MASK   U_MASK(U_COMBINING_SPACING_MARK)

Mask constant for a UCharCategory.

Stable
ICU 2.1

Definition at line 907 of file uchar.h.

◆ U_GC_ME_MASK

#define U_GC_ME_MASK   U_MASK(U_ENCLOSING_MARK)

Mask constant for a UCharCategory.

Stable
ICU 2.1

Definition at line 905 of file uchar.h.

◆ U_GC_MN_MASK

#define U_GC_MN_MASK   U_MASK(U_NON_SPACING_MARK)

Mask constant for a UCharCategory.

Stable
ICU 2.1

Definition at line 903 of file uchar.h.

◆ U_GC_N_MASK

#define U_GC_N_MASK   (U_GC_ND_MASK|U_GC_NL_MASK|U_GC_NO_MASK)

Mask constant for multiple UCharCategory bits (N Numbers).

Stable
ICU 2.1

Definition at line 970 of file uchar.h.

◆ U_GC_ND_MASK

#define U_GC_ND_MASK   U_MASK(U_DECIMAL_DIGIT_NUMBER)

Mask constant for a UCharCategory.

Stable
ICU 2.1

Definition at line 910 of file uchar.h.

◆ U_GC_NL_MASK

#define U_GC_NL_MASK   U_MASK(U_LETTER_NUMBER)

Mask constant for a UCharCategory.

Stable
ICU 2.1

Definition at line 912 of file uchar.h.

◆ U_GC_NO_MASK

#define U_GC_NO_MASK   U_MASK(U_OTHER_NUMBER)

Mask constant for a UCharCategory.

Stable
ICU 2.1

Definition at line 914 of file uchar.h.

◆ U_GC_P_MASK

#define U_GC_P_MASK
Value:
#define U_GC_PS_MASK
Mask constant for a UCharCategory.
Definition uchar.h:935
#define U_GC_PE_MASK
Mask constant for a UCharCategory.
Definition uchar.h:937
#define U_GC_PO_MASK
Mask constant for a UCharCategory.
Definition uchar.h:941
#define U_GC_PC_MASK
Mask constant for a UCharCategory.
Definition uchar.h:939
#define U_GC_PD_MASK
Mask constant for a UCharCategory.
Definition uchar.h:933
#define U_GC_PI_MASK
Mask constant for a UCharCategory.
Definition uchar.h:953
#define U_GC_PF_MASK
Mask constant for a UCharCategory.
Definition uchar.h:955

Mask constant for multiple UCharCategory bits (P Punctuation).

Stable
ICU 2.1

Definition at line 980 of file uchar.h.

◆ U_GC_PC_MASK

#define U_GC_PC_MASK   U_MASK(U_CONNECTOR_PUNCTUATION)

Mask constant for a UCharCategory.

Stable
ICU 2.1

Definition at line 939 of file uchar.h.

◆ U_GC_PD_MASK

#define U_GC_PD_MASK   U_MASK(U_DASH_PUNCTUATION)

Mask constant for a UCharCategory.

Stable
ICU 2.1

Definition at line 933 of file uchar.h.

◆ U_GC_PE_MASK

#define U_GC_PE_MASK   U_MASK(U_END_PUNCTUATION)

Mask constant for a UCharCategory.

Stable
ICU 2.1

Definition at line 937 of file uchar.h.

◆ U_GC_PF_MASK

#define U_GC_PF_MASK   U_MASK(U_FINAL_PUNCTUATION)

Mask constant for a UCharCategory.

Stable
ICU 2.1

Definition at line 955 of file uchar.h.

◆ U_GC_PI_MASK

#define U_GC_PI_MASK   U_MASK(U_INITIAL_PUNCTUATION)

Mask constant for a UCharCategory.

Stable
ICU 2.1

Definition at line 953 of file uchar.h.

◆ U_GC_PO_MASK

#define U_GC_PO_MASK   U_MASK(U_OTHER_PUNCTUATION)

Mask constant for a UCharCategory.

Stable
ICU 2.1

Definition at line 941 of file uchar.h.

◆ U_GC_PS_MASK

#define U_GC_PS_MASK   U_MASK(U_START_PUNCTUATION)

Mask constant for a UCharCategory.

Stable
ICU 2.1

Definition at line 935 of file uchar.h.

◆ U_GC_S_MASK

#define U_GC_S_MASK   (U_GC_SM_MASK|U_GC_SC_MASK|U_GC_SK_MASK|U_GC_SO_MASK)

Mask constant for multiple UCharCategory bits (S Symbols).

Stable
ICU 2.1

Definition at line 985 of file uchar.h.

◆ U_GC_SC_MASK

#define U_GC_SC_MASK   U_MASK(U_CURRENCY_SYMBOL)

Mask constant for a UCharCategory.

Stable
ICU 2.1

Definition at line 946 of file uchar.h.

◆ U_GC_SK_MASK

#define U_GC_SK_MASK   U_MASK(U_MODIFIER_SYMBOL)

Mask constant for a UCharCategory.

Stable
ICU 2.1

Definition at line 948 of file uchar.h.

◆ U_GC_SM_MASK

#define U_GC_SM_MASK   U_MASK(U_MATH_SYMBOL)

Mask constant for a UCharCategory.

Stable
ICU 2.1

Definition at line 944 of file uchar.h.

◆ U_GC_SO_MASK

#define U_GC_SO_MASK   U_MASK(U_OTHER_SYMBOL)

Mask constant for a UCharCategory.

Stable
ICU 2.1

Definition at line 950 of file uchar.h.

◆ U_GC_Z_MASK

#define U_GC_Z_MASK   (U_GC_ZS_MASK|U_GC_ZL_MASK|U_GC_ZP_MASK)

Mask constant for multiple UCharCategory bits (Z Separators).

Stable
ICU 2.1

Definition at line 973 of file uchar.h.

◆ U_GC_ZL_MASK

#define U_GC_ZL_MASK   U_MASK(U_LINE_SEPARATOR)

Mask constant for a UCharCategory.

Stable
ICU 2.1

Definition at line 919 of file uchar.h.

◆ U_GC_ZP_MASK

#define U_GC_ZP_MASK   U_MASK(U_PARAGRAPH_SEPARATOR)

Mask constant for a UCharCategory.

Stable
ICU 2.1

Definition at line 921 of file uchar.h.

◆ U_GC_ZS_MASK

#define U_GC_ZS_MASK   U_MASK(U_SPACE_SEPARATOR)

Mask constant for a UCharCategory.

Stable
ICU 2.1

Definition at line 917 of file uchar.h.

◆ U_GET_GC_MASK

#define U_GET_GC_MASK ( c)    U_MASK(u_charType(c))

Get a single-bit bit set for the general category of a character.

This bit set can be compared bitwise with U_GC_SM_MASK, U_GC_L_MASK, etc. Same as U_MASK(u_charType(c)).

Parameters
cthe code point to be tested
Returns
a single-bit mask corresponding to the general category (UCharCategory) value
See also
u_charType
UCharCategory
U_GC_CN_MASK
Stable
ICU 2.1

Definition at line 3496 of file uchar.h.

◆ U_MASK

#define U_MASK ( x)    ((uint32_t)1<<(x))

Get a single-bit bit set (a flag) from a bit number 0..31.

Stable
ICU 2.1

Definition at line 173 of file uchar.h.

◆ U_NO_NUMERIC_VALUE

#define U_NO_NUMERIC_VALUE   ((double)-123456789.)

Special value that is returned by u_getNumericValue when no numeric value is defined for a code point.

See also
u_getNumericValue
Stable
ICU 2.2

Definition at line 2986 of file uchar.h.

◆ U_UNICODE_VERSION

#define U_UNICODE_VERSION   "15.1"

Unicode version number, default for the current ICU version.

The actual Unicode Character Database (UCD) data is stored in uprops.dat and may be generated from UCD files from a different Unicode version. Call u_getUnicodeVersion to get the actual Unicode version of the data.

See also
u_getUnicodeVersion
Stable
ICU 2.0

Definition at line 63 of file uchar.h.

◆ UCHAR_MAX_VALUE

#define UCHAR_MAX_VALUE   0x10ffff

The highest Unicode code point value (scalar value) according to The Unicode Standard.

This is a 21-bit value (20.1 bits, rounded up). For a single character, UChar32 is a simple type that can hold any code point value.

See also
UChar32
Stable
ICU 2.0

Definition at line 167 of file uchar.h.

◆ UCHAR_MIN_VALUE

#define UCHAR_MIN_VALUE   0

Constants.

The lowest Unicode code point value. Code points are non-negative.

Stable
ICU 2.0

Definition at line 157 of file uchar.h.

Typedef Documentation

◆ UBidiPairedBracketType

Bidi Paired Bracket Type constants.

See also
UCHAR_BIDI_PAIRED_BRACKET_TYPE
Stable
ICU 52

◆ UBlockCode

typedef enum UBlockCode UBlockCode
Stable
ICU 2.0

Definition at line 1944 of file uchar.h.

◆ UCharCategory

Data for enumerated Unicode general category types.

See http://www.unicode.org/Public/UNIDATA/UnicodeData.html .

Stable
ICU 2.0

◆ UCharDirection

This specifies the language directional property of a character set.

Stable
ICU 2.0

◆ UCharEnumTypeRange

typedef UBool UCharEnumTypeRange(const void *context, UChar32 start, UChar32 limit, UCharCategory type)

Callback from u_enumCharTypes(), is called for each contiguous range of code points c (where start<=c<limit) with the same Unicode general category ("character type").

The callback function can stop the enumeration by returning false.

Parameters
contextan opaque pointer, as passed into utrie_enum()
startthe first code point in a contiguous range with value
limitone past the last code point in a contiguous range with value
typethe general category for all code points in [start..limit[
Returns
false to stop the enumeration
Stable
ICU 2.1
See also
UCharCategory
u_enumCharTypes

Definition at line 3516 of file uchar.h.

◆ UCharNameChoice

Selector constants for u_charName().

u_charName() returns the "modern" name of a Unicode character; or the name that was defined in Unicode version 1.0, before the Unicode standard merged with ISO-10646; or an "extended" name that gives each Unicode code point a unique name.

See also
u_charName
Stable
ICU 2.0

◆ UDecompositionType

Decomposition Type constants.

See also
UCHAR_DECOMPOSITION_TYPE
Stable
ICU 2.2

◆ UEastAsianWidth

East Asian Width constants.

See also
UCHAR_EAST_ASIAN_WIDTH
u_getIntPropertyValue
Stable
ICU 2.2

◆ UEnumCharNamesFn

typedef UBool UEnumCharNamesFn(void *context, UChar32 code, UCharNameChoice nameChoice, const char *name, int32_t length)

Type of a callback function for u_enumCharNames() that gets called for each Unicode character with the code point value and the character name.

If such a function returns false, then the enumeration is stopped.

Parameters
contextThe context pointer that was passed to u_enumCharNames().
codeThe Unicode code point for the character with this name.
nameChoiceSelector for which kind of names is enumerated.
nameThe character's name, zero-terminated.
lengthThe length of the name.
Returns
true if the enumeration should continue, false to stop it.
See also
UCharNameChoice
u_enumCharNames
Stable
ICU 1.7

Definition at line 3696 of file uchar.h.

◆ UGraphemeClusterBreak

Grapheme Cluster Break constants.

See also
UCHAR_GRAPHEME_CLUSTER_BREAK
Stable
ICU 3.4

◆ UHangulSyllableType

Hangul Syllable Type constants.

See also
UCHAR_HANGUL_SYLLABLE_TYPE
Stable
ICU 2.6

◆ UIndicPositionalCategory

Indic Positional Category constants.

See also
UCHAR_INDIC_POSITIONAL_CATEGORY
Stable
ICU 63

◆ UIndicSyllabicCategory

Indic Syllabic Category constants.

See also
UCHAR_INDIC_SYLLABIC_CATEGORY
Stable
ICU 63

◆ UJoiningGroup

Joining Group constants.

See also
UCHAR_JOINING_GROUP
Stable
ICU 2.2

◆ UJoiningType

typedef enum UJoiningType UJoiningType

Joining Type constants.

See also
UCHAR_JOINING_TYPE
Stable
ICU 2.2

◆ ULineBreak

typedef enum ULineBreak ULineBreak

Line Break constants.

See also
UCHAR_LINE_BREAK
Stable
ICU 2.2

◆ UNumericType

typedef enum UNumericType UNumericType

Numeric Type constants.

See also
UCHAR_NUMERIC_TYPE
Stable
ICU 2.2

◆ UProperty

typedef enum UProperty UProperty

Selection constants for Unicode properties.

These constants are used in functions like u_hasBinaryProperty to select one of the Unicode properties.

The properties APIs are intended to reflect Unicode properties as defined in the Unicode Character Database (UCD) and Unicode Technical Reports (UTR).

For details about the properties see UAX #44: Unicode Character Database (http://www.unicode.org/reports/tr44/).

Important: If ICU is built with UCD files from Unicode versions below, e.g., 3.2, then properties marked with "new in Unicode 3.2" are not or not fully available. Check u_getUnicodeVersion to be sure.

See also
u_hasBinaryProperty
u_getIntPropertyValue
u_getUnicodeVersion
Stable
ICU 2.1

◆ UPropertyNameChoice

Selector constants for u_getPropertyName() and u_getPropertyValueName().

These selectors are used to choose which name is returned for a given property or value. All properties and values have a long name. Most have a short name, but some do not. Unicode allows for additional names, beyond the long and short name, which would be indicated by U_LONG_PROPERTY_NAME + i, where i=1, 2,...

See also
u_getPropertyName()
u_getPropertyValueName()
Stable
ICU 2.4

◆ USentenceBreak

Sentence Break constants.

See also
UCHAR_SENTENCE_BREAK
Stable
ICU 3.4

◆ UVerticalOrientation

Vertical Orientation constants.

See also
UCHAR_VERTICAL_ORIENTATION
Stable
ICU 63

◆ UWordBreakValues

Word Break constants.

(UWordBreak is a pre-existing enum type in ubrk.h for word break status tags.)

See also
UCHAR_WORD_BREAK
Stable
ICU 3.4

Enumeration Type Documentation

◆ UBidiPairedBracketType

Bidi Paired Bracket Type constants.

See also
UCHAR_BIDI_PAIRED_BRACKET_TYPE
Stable
ICU 52
Enumerator
U_BPT_NONE 

Not a paired bracket.

Stable
ICU 52
U_BPT_OPEN 

Open paired bracket.

Stable
ICU 52
U_BPT_CLOSE 

Close paired bracket.

Stable
ICU 52
U_BPT_COUNT 

One more than the highest normal UBidiPairedBracketType value.

The highest value is available via u_getIntPropertyMaxValue(UCHAR_BIDI_PAIRED_BRACKET_TYPE).

Deprecated
ICU 58 The numeric value may change over time, see ICU ticket #12420.

Definition at line 1062 of file uchar.h.

◆ UBlockCode

enum UBlockCode

Constants for Unicode blocks, see the Unicode Data file Blocks.txt.

Stable
ICU 2.0
Enumerator
UBLOCK_NO_BLOCK 

New No_Block value in Unicode 4.

Stable
ICU 2.6
UBLOCK_BASIC_LATIN 
Stable
ICU 2.0
UBLOCK_LATIN_1_SUPPLEMENT 
Stable
ICU 2.0
UBLOCK_LATIN_EXTENDED_A 
Stable
ICU 2.0
UBLOCK_LATIN_EXTENDED_B 
Stable
ICU 2.0
UBLOCK_IPA_EXTENSIONS 
Stable
ICU 2.0
UBLOCK_SPACING_MODIFIER_LETTERS 
Stable
ICU 2.0
UBLOCK_COMBINING_DIACRITICAL_MARKS 
Stable
ICU 2.0
UBLOCK_GREEK 

Unicode 3.2 renames this block to "Greek and Coptic".

Stable
ICU 2.0
UBLOCK_CYRILLIC 
Stable
ICU 2.0
UBLOCK_ARMENIAN 
Stable
ICU 2.0
UBLOCK_HEBREW 
Stable
ICU 2.0
UBLOCK_ARABIC 
Stable
ICU 2.0
UBLOCK_SYRIAC 
Stable
ICU 2.0
UBLOCK_THAANA 
Stable
ICU 2.0
UBLOCK_DEVANAGARI 
Stable
ICU 2.0
UBLOCK_BENGALI 
Stable
ICU 2.0
UBLOCK_GURMUKHI 
Stable
ICU 2.0
UBLOCK_GUJARATI 
Stable
ICU 2.0
UBLOCK_ORIYA 
Stable
ICU 2.0
UBLOCK_TAMIL 
Stable
ICU 2.0
UBLOCK_TELUGU 
Stable
ICU 2.0
UBLOCK_KANNADA 
Stable
ICU 2.0
UBLOCK_MALAYALAM 
Stable
ICU 2.0
UBLOCK_SINHALA 
Stable
ICU 2.0
UBLOCK_THAI 
Stable
ICU 2.0
UBLOCK_LAO 
Stable
ICU 2.0
UBLOCK_TIBETAN 
Stable
ICU 2.0
UBLOCK_MYANMAR 
Stable
ICU 2.0
UBLOCK_GEORGIAN 
Stable
ICU 2.0
UBLOCK_HANGUL_JAMO 
Stable
ICU 2.0
UBLOCK_ETHIOPIC 
Stable
ICU 2.0
UBLOCK_CHEROKEE 
Stable
ICU 2.0
UBLOCK_UNIFIED_CANADIAN_ABORIGINAL_SYLLABICS 
Stable
ICU 2.0
UBLOCK_OGHAM 
Stable
ICU 2.0
UBLOCK_RUNIC 
Stable
ICU 2.0
UBLOCK_KHMER 
Stable
ICU 2.0
UBLOCK_MONGOLIAN 
Stable
ICU 2.0
UBLOCK_LATIN_EXTENDED_ADDITIONAL 
Stable
ICU 2.0
UBLOCK_GREEK_EXTENDED 
Stable
ICU 2.0
UBLOCK_GENERAL_PUNCTUATION 
Stable
ICU 2.0
UBLOCK_SUPERSCRIPTS_AND_SUBSCRIPTS 
Stable
ICU 2.0
UBLOCK_CURRENCY_SYMBOLS 
Stable
ICU 2.0
UBLOCK_COMBINING_MARKS_FOR_SYMBOLS 

Unicode 3.2 renames this block to "Combining Diacritical Marks for Symbols".

Stable
ICU 2.0
UBLOCK_LETTERLIKE_SYMBOLS 
Stable
ICU 2.0
UBLOCK_NUMBER_FORMS 
Stable
ICU 2.0
UBLOCK_ARROWS 
Stable
ICU 2.0
UBLOCK_MATHEMATICAL_OPERATORS 
Stable
ICU 2.0
UBLOCK_MISCELLANEOUS_TECHNICAL 
Stable
ICU 2.0
UBLOCK_CONTROL_PICTURES 
Stable
ICU 2.0
UBLOCK_OPTICAL_CHARACTER_RECOGNITION 
Stable
ICU 2.0
UBLOCK_ENCLOSED_ALPHANUMERICS 
Stable
ICU 2.0
UBLOCK_BOX_DRAWING 
Stable
ICU 2.0
UBLOCK_BLOCK_ELEMENTS 
Stable
ICU 2.0
UBLOCK_GEOMETRIC_SHAPES 
Stable
ICU 2.0
UBLOCK_MISCELLANEOUS_SYMBOLS 
Stable
ICU 2.0
UBLOCK_DINGBATS 
Stable
ICU 2.0
UBLOCK_BRAILLE_PATTERNS 
Stable
ICU 2.0
UBLOCK_CJK_RADICALS_SUPPLEMENT 
Stable
ICU 2.0
UBLOCK_KANGXI_RADICALS 
Stable
ICU 2.0
UBLOCK_IDEOGRAPHIC_DESCRIPTION_CHARACTERS 
Stable
ICU 2.0
UBLOCK_CJK_SYMBOLS_AND_PUNCTUATION 
Stable
ICU 2.0
UBLOCK_HIRAGANA 
Stable
ICU 2.0
UBLOCK_KATAKANA 
Stable
ICU 2.0
UBLOCK_BOPOMOFO 
Stable
ICU 2.0
UBLOCK_HANGUL_COMPATIBILITY_JAMO 
Stable
ICU 2.0
UBLOCK_KANBUN 
Stable
ICU 2.0
UBLOCK_BOPOMOFO_EXTENDED 
Stable
ICU 2.0
UBLOCK_ENCLOSED_CJK_LETTERS_AND_MONTHS 
Stable
ICU 2.0
UBLOCK_CJK_COMPATIBILITY 
Stable
ICU 2.0
UBLOCK_CJK_UNIFIED_IDEOGRAPHS_EXTENSION_A 
Stable
ICU 2.0
UBLOCK_CJK_UNIFIED_IDEOGRAPHS 
Stable
ICU 2.0
UBLOCK_YI_SYLLABLES 
Stable
ICU 2.0
UBLOCK_YI_RADICALS 
Stable
ICU 2.0
UBLOCK_HANGUL_SYLLABLES 
Stable
ICU 2.0
UBLOCK_HIGH_SURROGATES 
Stable
ICU 2.0
UBLOCK_HIGH_PRIVATE_USE_SURROGATES 
Stable
ICU 2.0
UBLOCK_LOW_SURROGATES 
Stable
ICU 2.0
UBLOCK_PRIVATE_USE_AREA 

Same as UBLOCK_PRIVATE_USE.

Until Unicode 3.1.1, the corresponding block name was "Private Use", and multiple code point ranges had this block. Unicode 3.2 renames the block for the BMP PUA to "Private Use Area" and adds separate blocks for the supplementary PUAs.

Stable
ICU 2.0
UBLOCK_PRIVATE_USE 

Same as UBLOCK_PRIVATE_USE_AREA.

Until Unicode 3.1.1, the corresponding block name was "Private Use", and multiple code point ranges had this block. Unicode 3.2 renames the block for the BMP PUA to "Private Use Area" and adds separate blocks for the supplementary PUAs.

Stable
ICU 2.0
UBLOCK_CJK_COMPATIBILITY_IDEOGRAPHS 
Stable
ICU 2.0
UBLOCK_ALPHABETIC_PRESENTATION_FORMS 
Stable
ICU 2.0
UBLOCK_ARABIC_PRESENTATION_FORMS_A 
Stable
ICU 2.0
UBLOCK_COMBINING_HALF_MARKS 
Stable
ICU 2.0
UBLOCK_CJK_COMPATIBILITY_FORMS 
Stable
ICU 2.0
UBLOCK_SMALL_FORM_VARIANTS 
Stable
ICU 2.0
UBLOCK_ARABIC_PRESENTATION_FORMS_B 
Stable
ICU 2.0
UBLOCK_SPECIALS 
Stable
ICU 2.0
UBLOCK_HALFWIDTH_AND_FULLWIDTH_FORMS 
Stable
ICU 2.0
UBLOCK_OLD_ITALIC 
Stable
ICU 2.0
UBLOCK_GOTHIC 
Stable
ICU 2.0
UBLOCK_DESERET 
Stable
ICU 2.0
UBLOCK_BYZANTINE_MUSICAL_SYMBOLS 
Stable
ICU 2.0
UBLOCK_MUSICAL_SYMBOLS 
Stable
ICU 2.0
UBLOCK_MATHEMATICAL_ALPHANUMERIC_SYMBOLS 
Stable
ICU 2.0
UBLOCK_CJK_UNIFIED_IDEOGRAPHS_EXTENSION_B 
Stable
ICU 2.0
UBLOCK_CJK_COMPATIBILITY_IDEOGRAPHS_SUPPLEMENT 
Stable
ICU 2.0
UBLOCK_TAGS 
Stable
ICU 2.0
UBLOCK_CYRILLIC_SUPPLEMENT 
Stable
ICU 3.0
UBLOCK_CYRILLIC_SUPPLEMENTARY 

Unicode 4.0.1 renames the "Cyrillic Supplementary" block to "Cyrillic Supplement".

Stable
ICU 2.2
UBLOCK_TAGALOG 
Stable
ICU 2.2
UBLOCK_HANUNOO 
Stable
ICU 2.2
UBLOCK_BUHID 
Stable
ICU 2.2
UBLOCK_TAGBANWA 
Stable
ICU 2.2
UBLOCK_MISCELLANEOUS_MATHEMATICAL_SYMBOLS_A 
Stable
ICU 2.2
UBLOCK_SUPPLEMENTAL_ARROWS_A 
Stable
ICU 2.2
UBLOCK_SUPPLEMENTAL_ARROWS_B 
Stable
ICU 2.2
UBLOCK_MISCELLANEOUS_MATHEMATICAL_SYMBOLS_B 
Stable
ICU 2.2
UBLOCK_SUPPLEMENTAL_MATHEMATICAL_OPERATORS 
Stable
ICU 2.2
UBLOCK_KATAKANA_PHONETIC_EXTENSIONS 
Stable
ICU 2.2
UBLOCK_VARIATION_SELECTORS 
Stable
ICU 2.2
UBLOCK_SUPPLEMENTARY_PRIVATE_USE_AREA_A 
Stable
ICU 2.2
UBLOCK_SUPPLEMENTARY_PRIVATE_USE_AREA_B 
Stable
ICU 2.2
UBLOCK_LIMBU 
Stable
ICU 2.6
UBLOCK_TAI_LE 
Stable
ICU 2.6
UBLOCK_KHMER_SYMBOLS 
Stable
ICU 2.6
UBLOCK_PHONETIC_EXTENSIONS 
Stable
ICU 2.6
UBLOCK_MISCELLANEOUS_SYMBOLS_AND_ARROWS 
Stable
ICU 2.6
UBLOCK_YIJING_HEXAGRAM_SYMBOLS 
Stable
ICU 2.6
UBLOCK_LINEAR_B_SYLLABARY 
Stable
ICU 2.6
UBLOCK_LINEAR_B_IDEOGRAMS 
Stable
ICU 2.6
UBLOCK_AEGEAN_NUMBERS 
Stable
ICU 2.6
UBLOCK_UGARITIC 
Stable
ICU 2.6
UBLOCK_SHAVIAN 
Stable
ICU 2.6
UBLOCK_OSMANYA 
Stable
ICU 2.6
UBLOCK_CYPRIOT_SYLLABARY 
Stable
ICU 2.6
UBLOCK_TAI_XUAN_JING_SYMBOLS 
Stable
ICU 2.6
UBLOCK_VARIATION_SELECTORS_SUPPLEMENT 
Stable
ICU 2.6
UBLOCK_ANCIENT_GREEK_MUSICAL_NOTATION 
Stable
ICU 3.4
UBLOCK_ANCIENT_GREEK_NUMBERS 
Stable
ICU 3.4
UBLOCK_ARABIC_SUPPLEMENT 
Stable
ICU 3.4
UBLOCK_BUGINESE 
Stable
ICU 3.4
UBLOCK_CJK_STROKES 
Stable
ICU 3.4
UBLOCK_COMBINING_DIACRITICAL_MARKS_SUPPLEMENT 
Stable
ICU 3.4
UBLOCK_COPTIC 
Stable
ICU 3.4
UBLOCK_ETHIOPIC_EXTENDED 
Stable
ICU 3.4
UBLOCK_ETHIOPIC_SUPPLEMENT 
Stable
ICU 3.4
UBLOCK_GEORGIAN_SUPPLEMENT 
Stable
ICU 3.4
UBLOCK_GLAGOLITIC 
Stable
ICU 3.4
UBLOCK_KHAROSHTHI 
Stable
ICU 3.4
UBLOCK_MODIFIER_TONE_LETTERS 
Stable
ICU 3.4
UBLOCK_NEW_TAI_LUE 
Stable
ICU 3.4
UBLOCK_OLD_PERSIAN 
Stable
ICU 3.4
UBLOCK_PHONETIC_EXTENSIONS_SUPPLEMENT 
Stable
ICU 3.4
UBLOCK_SUPPLEMENTAL_PUNCTUATION 
Stable
ICU 3.4
UBLOCK_SYLOTI_NAGRI 
Stable
ICU 3.4
UBLOCK_TIFINAGH 
Stable
ICU 3.4
UBLOCK_VERTICAL_FORMS 
Stable
ICU 3.4
UBLOCK_NKO 
Stable
ICU 3.6
UBLOCK_BALINESE 
Stable
ICU 3.6
UBLOCK_LATIN_EXTENDED_C 
Stable
ICU 3.6
UBLOCK_LATIN_EXTENDED_D 
Stable
ICU 3.6
UBLOCK_PHAGS_PA 
Stable
ICU 3.6
UBLOCK_PHOENICIAN 
Stable
ICU 3.6
UBLOCK_CUNEIFORM 
Stable
ICU 3.6
UBLOCK_CUNEIFORM_NUMBERS_AND_PUNCTUATION 
Stable
ICU 3.6
UBLOCK_COUNTING_ROD_NUMERALS 
Stable
ICU 3.6
UBLOCK_SUNDANESE 
Stable
ICU 4.0
UBLOCK_LEPCHA 
Stable
ICU 4.0
UBLOCK_OL_CHIKI 
Stable
ICU 4.0
UBLOCK_CYRILLIC_EXTENDED_A 
Stable
ICU 4.0
UBLOCK_VAI 
Stable
ICU 4.0
UBLOCK_CYRILLIC_EXTENDED_B 
Stable
ICU 4.0
UBLOCK_SAURASHTRA 
Stable
ICU 4.0
UBLOCK_KAYAH_LI 
Stable
ICU 4.0
UBLOCK_REJANG 
Stable
ICU 4.0
UBLOCK_CHAM 
Stable
ICU 4.0
UBLOCK_ANCIENT_SYMBOLS 
Stable
ICU 4.0
UBLOCK_PHAISTOS_DISC 
Stable
ICU 4.0
UBLOCK_LYCIAN 
Stable
ICU 4.0
UBLOCK_CARIAN 
Stable
ICU 4.0
UBLOCK_LYDIAN 
Stable
ICU 4.0
UBLOCK_MAHJONG_TILES 
Stable
ICU 4.0
UBLOCK_DOMINO_TILES 
Stable
ICU 4.0
UBLOCK_SAMARITAN 
Stable
ICU 4.4
UBLOCK_UNIFIED_CANADIAN_ABORIGINAL_SYLLABICS_EXTENDED 
Stable
ICU 4.4
UBLOCK_TAI_THAM 
Stable
ICU 4.4
UBLOCK_VEDIC_EXTENSIONS 
Stable
ICU 4.4
UBLOCK_LISU 
Stable
ICU 4.4
UBLOCK_BAMUM 
Stable
ICU 4.4
UBLOCK_COMMON_INDIC_NUMBER_FORMS 
Stable
ICU 4.4
UBLOCK_DEVANAGARI_EXTENDED 
Stable
ICU 4.4
UBLOCK_HANGUL_JAMO_EXTENDED_A 
Stable
ICU 4.4
UBLOCK_JAVANESE 
Stable
ICU 4.4
UBLOCK_MYANMAR_EXTENDED_A 
Stable
ICU 4.4
UBLOCK_TAI_VIET 
Stable
ICU 4.4
UBLOCK_MEETEI_MAYEK 
Stable
ICU 4.4
UBLOCK_HANGUL_JAMO_EXTENDED_B 
Stable
ICU 4.4
UBLOCK_IMPERIAL_ARAMAIC 
Stable
ICU 4.4
UBLOCK_OLD_SOUTH_ARABIAN 
Stable
ICU 4.4
UBLOCK_AVESTAN 
Stable
ICU 4.4
UBLOCK_INSCRIPTIONAL_PARTHIAN 
Stable
ICU 4.4
UBLOCK_INSCRIPTIONAL_PAHLAVI 
Stable
ICU 4.4
UBLOCK_OLD_TURKIC 
Stable
ICU 4.4
UBLOCK_RUMI_NUMERAL_SYMBOLS 
Stable
ICU 4.4
UBLOCK_KAITHI 
Stable
ICU 4.4
UBLOCK_EGYPTIAN_HIEROGLYPHS 
Stable
ICU 4.4
UBLOCK_ENCLOSED_ALPHANUMERIC_SUPPLEMENT 
Stable
ICU 4.4
UBLOCK_ENCLOSED_IDEOGRAPHIC_SUPPLEMENT 
Stable
ICU 4.4
UBLOCK_CJK_UNIFIED_IDEOGRAPHS_EXTENSION_C 
Stable
ICU 4.4
UBLOCK_MANDAIC 
Stable
ICU 4.6
UBLOCK_BATAK 
Stable
ICU 4.6
UBLOCK_ETHIOPIC_EXTENDED_A 
Stable
ICU 4.6
UBLOCK_BRAHMI 
Stable
ICU 4.6
UBLOCK_BAMUM_SUPPLEMENT 
Stable
ICU 4.6
UBLOCK_KANA_SUPPLEMENT 
Stable
ICU 4.6
UBLOCK_PLAYING_CARDS 
Stable
ICU 4.6
UBLOCK_MISCELLANEOUS_SYMBOLS_AND_PICTOGRAPHS 
Stable
ICU 4.6
UBLOCK_EMOTICONS 
Stable
ICU 4.6
UBLOCK_TRANSPORT_AND_MAP_SYMBOLS 
Stable
ICU 4.6
UBLOCK_ALCHEMICAL_SYMBOLS 
Stable
ICU 4.6
UBLOCK_CJK_UNIFIED_IDEOGRAPHS_EXTENSION_D 
Stable
ICU 4.6
UBLOCK_ARABIC_EXTENDED_A 
Stable
ICU 49
UBLOCK_ARABIC_MATHEMATICAL_ALPHABETIC_SYMBOLS 
Stable
ICU 49
UBLOCK_CHAKMA 
Stable
ICU 49
UBLOCK_MEETEI_MAYEK_EXTENSIONS 
Stable
ICU 49
UBLOCK_MEROITIC_CURSIVE 
Stable
ICU 49
UBLOCK_MEROITIC_HIEROGLYPHS 
Stable
ICU 49
UBLOCK_MIAO 
Stable
ICU 49
UBLOCK_SHARADA 
Stable
ICU 49
UBLOCK_SORA_SOMPENG 
Stable
ICU 49
UBLOCK_SUNDANESE_SUPPLEMENT 
Stable
ICU 49
UBLOCK_TAKRI 
Stable
ICU 49
UBLOCK_BASSA_VAH 
Stable
ICU 54
UBLOCK_CAUCASIAN_ALBANIAN 
Stable
ICU 54
UBLOCK_COPTIC_EPACT_NUMBERS 
Stable
ICU 54
UBLOCK_COMBINING_DIACRITICAL_MARKS_EXTENDED 
Stable
ICU 54
UBLOCK_DUPLOYAN 
Stable
ICU 54
UBLOCK_ELBASAN 
Stable
ICU 54
UBLOCK_GEOMETRIC_SHAPES_EXTENDED 
Stable
ICU 54
UBLOCK_GRANTHA 
Stable
ICU 54
UBLOCK_KHOJKI 
Stable
ICU 54
UBLOCK_KHUDAWADI 
Stable
ICU 54
UBLOCK_LATIN_EXTENDED_E 
Stable
ICU 54
UBLOCK_LINEAR_A 
Stable
ICU 54
UBLOCK_MAHAJANI 
Stable
ICU 54
UBLOCK_MANICHAEAN 
Stable
ICU 54
UBLOCK_MENDE_KIKAKUI 
Stable
ICU 54
UBLOCK_MODI 
Stable
ICU 54
UBLOCK_MRO 
Stable
ICU 54
UBLOCK_MYANMAR_EXTENDED_B 
Stable
ICU 54
UBLOCK_NABATAEAN 
Stable
ICU 54
UBLOCK_OLD_NORTH_ARABIAN 
Stable
ICU 54
UBLOCK_OLD_PERMIC 
Stable
ICU 54
UBLOCK_ORNAMENTAL_DINGBATS 
Stable
ICU 54
UBLOCK_PAHAWH_HMONG 
Stable
ICU 54
UBLOCK_PALMYRENE 
Stable
ICU 54
UBLOCK_PAU_CIN_HAU 
Stable
ICU 54
UBLOCK_PSALTER_PAHLAVI 
Stable
ICU 54
UBLOCK_SHORTHAND_FORMAT_CONTROLS 
Stable
ICU 54
UBLOCK_SIDDHAM 
Stable
ICU 54
UBLOCK_SINHALA_ARCHAIC_NUMBERS 
Stable
ICU 54
UBLOCK_SUPPLEMENTAL_ARROWS_C 
Stable
ICU 54
UBLOCK_TIRHUTA 
Stable
ICU 54
UBLOCK_WARANG_CITI 
Stable
ICU 54
UBLOCK_AHOM 
Stable
ICU 56
UBLOCK_ANATOLIAN_HIEROGLYPHS 
Stable
ICU 56
UBLOCK_CHEROKEE_SUPPLEMENT 
Stable
ICU 56
UBLOCK_CJK_UNIFIED_IDEOGRAPHS_EXTENSION_E 
Stable
ICU 56
UBLOCK_EARLY_DYNASTIC_CUNEIFORM 
Stable
ICU 56
UBLOCK_HATRAN 
Stable
ICU 56
UBLOCK_MULTANI 
Stable
ICU 56
UBLOCK_OLD_HUNGARIAN 
Stable
ICU 56
UBLOCK_SUPPLEMENTAL_SYMBOLS_AND_PICTOGRAPHS 
Stable
ICU 56
UBLOCK_SUTTON_SIGNWRITING 
Stable
ICU 56
UBLOCK_ADLAM 
Stable
ICU 58
UBLOCK_BHAIKSUKI 
Stable
ICU 58
UBLOCK_CYRILLIC_EXTENDED_C 
Stable
ICU 58
UBLOCK_GLAGOLITIC_SUPPLEMENT 
Stable
ICU 58
UBLOCK_IDEOGRAPHIC_SYMBOLS_AND_PUNCTUATION 
Stable
ICU 58
UBLOCK_MARCHEN 
Stable
ICU 58
UBLOCK_MONGOLIAN_SUPPLEMENT 
Stable
ICU 58
UBLOCK_NEWA 
Stable
ICU 58
UBLOCK_OSAGE 
Stable
ICU 58
UBLOCK_TANGUT 
Stable
ICU 58
UBLOCK_TANGUT_COMPONENTS 
Stable
ICU 58
UBLOCK_CJK_UNIFIED_IDEOGRAPHS_EXTENSION_F 
Stable
ICU 60
UBLOCK_KANA_EXTENDED_A 
Stable
ICU 60
UBLOCK_MASARAM_GONDI 
Stable
ICU 60
UBLOCK_NUSHU 
Stable
ICU 60
UBLOCK_SOYOMBO 
Stable
ICU 60
UBLOCK_SYRIAC_SUPPLEMENT 
Stable
ICU 60
UBLOCK_ZANABAZAR_SQUARE 
Stable
ICU 60
UBLOCK_CHESS_SYMBOLS 
Stable
ICU 62
UBLOCK_DOGRA 
Stable
ICU 62
UBLOCK_GEORGIAN_EXTENDED 
Stable
ICU 62
UBLOCK_GUNJALA_GONDI 
Stable
ICU 62
UBLOCK_HANIFI_ROHINGYA 
Stable
ICU 62
UBLOCK_INDIC_SIYAQ_NUMBERS 
Stable
ICU 62
UBLOCK_MAKASAR 
Stable
ICU 62
UBLOCK_MAYAN_NUMERALS 
Stable
ICU 62
UBLOCK_MEDEFAIDRIN 
Stable
ICU 62
UBLOCK_OLD_SOGDIAN 
Stable
ICU 62
UBLOCK_SOGDIAN 
Stable
ICU 62
UBLOCK_EGYPTIAN_HIEROGLYPH_FORMAT_CONTROLS 
Stable
ICU 64
UBLOCK_ELYMAIC 
Stable
ICU 64
UBLOCK_NANDINAGARI 
Stable
ICU 64
UBLOCK_NYIAKENG_PUACHUE_HMONG 
Stable
ICU 64
UBLOCK_OTTOMAN_SIYAQ_NUMBERS 
Stable
ICU 64
UBLOCK_SMALL_KANA_EXTENSION 
Stable
ICU 64
UBLOCK_SYMBOLS_AND_PICTOGRAPHS_EXTENDED_A 
Stable
ICU 64
UBLOCK_TAMIL_SUPPLEMENT 
Stable
ICU 64
UBLOCK_WANCHO 
Stable
ICU 64
UBLOCK_CHORASMIAN 
Stable
ICU 66
UBLOCK_CJK_UNIFIED_IDEOGRAPHS_EXTENSION_G 
Stable
ICU 66
UBLOCK_DIVES_AKURU 
Stable
ICU 66
UBLOCK_KHITAN_SMALL_SCRIPT 
Stable
ICU 66
UBLOCK_LISU_SUPPLEMENT 
Stable
ICU 66
UBLOCK_SYMBOLS_FOR_LEGACY_COMPUTING 
Stable
ICU 66
UBLOCK_TANGUT_SUPPLEMENT 
Stable
ICU 66
UBLOCK_YEZIDI 
Stable
ICU 66
UBLOCK_ARABIC_EXTENDED_B 
Stable
ICU 70
UBLOCK_CYPRO_MINOAN 
Stable
ICU 70
UBLOCK_ETHIOPIC_EXTENDED_B 
Stable
ICU 70
UBLOCK_KANA_EXTENDED_B 
Stable
ICU 70
UBLOCK_LATIN_EXTENDED_F 
Stable
ICU 70
UBLOCK_LATIN_EXTENDED_G 
Stable
ICU 70
UBLOCK_OLD_UYGHUR 
Stable
ICU 70
UBLOCK_TANGSA 
Stable
ICU 70
UBLOCK_TOTO 
Stable
ICU 70
UBLOCK_UNIFIED_CANADIAN_ABORIGINAL_SYLLABICS_EXTENDED_A 
Stable
ICU 70
UBLOCK_VITHKUQI 
Stable
ICU 70
UBLOCK_ZNAMENNY_MUSICAL_NOTATION 
Stable
ICU 70
UBLOCK_ARABIC_EXTENDED_C 
Stable
ICU 72
UBLOCK_CJK_UNIFIED_IDEOGRAPHS_EXTENSION_H 
Stable
ICU 72
UBLOCK_CYRILLIC_EXTENDED_D 
Stable
ICU 72
UBLOCK_DEVANAGARI_EXTENDED_A 
Stable
ICU 72
UBLOCK_KAKTOVIK_NUMERALS 
Stable
ICU 72
UBLOCK_KAWI 
Stable
ICU 72
UBLOCK_NAG_MUNDARI 
Stable
ICU 72
UBLOCK_CJK_UNIFIED_IDEOGRAPHS_EXTENSION_I 
Stable
ICU 74
UBLOCK_COUNT 

One more than the highest normal UBlockCode value.

The highest value is available via u_getIntPropertyMaxValue(UCHAR_BLOCK).

Deprecated
ICU 58 The numeric value may change over time, see ICU ticket #12420.
UBLOCK_INVALID_CODE 
Stable
ICU 2.0

Definition at line 1090 of file uchar.h.

◆ UCharCategory

Data for enumerated Unicode general category types.

See http://www.unicode.org/Public/UNIDATA/UnicodeData.html .

Stable
ICU 2.0
Enumerator
U_UNASSIGNED 

Non-category for unassigned and non-character code points.

Stable
ICU 2.0
U_GENERAL_OTHER_TYPES 

Cn "Other, Not Assigned (no characters in [UnicodeData.txt] have this property)" (same as U_UNASSIGNED!)

Stable
ICU 2.0
U_UPPERCASE_LETTER 

Lu.

Stable
ICU 2.0
U_LOWERCASE_LETTER 

Ll.

Stable
ICU 2.0
U_TITLECASE_LETTER 

Lt.

Stable
ICU 2.0
U_MODIFIER_LETTER 

Lm.

Stable
ICU 2.0
U_OTHER_LETTER 

Lo.

Stable
ICU 2.0
U_NON_SPACING_MARK 

Mn.

Stable
ICU 2.0
U_ENCLOSING_MARK 

Me.

Stable
ICU 2.0
U_COMBINING_SPACING_MARK 

Mc.

Stable
ICU 2.0
U_DECIMAL_DIGIT_NUMBER 

Nd.

Stable
ICU 2.0
U_LETTER_NUMBER 

Nl.

Stable
ICU 2.0
U_OTHER_NUMBER 

No.

Stable
ICU 2.0
U_SPACE_SEPARATOR 

Zs.

Stable
ICU 2.0
U_LINE_SEPARATOR 

Zl.

Stable
ICU 2.0
U_PARAGRAPH_SEPARATOR 

Zp.

Stable
ICU 2.0
U_CONTROL_CHAR 

Cc.

Stable
ICU 2.0
U_FORMAT_CHAR 

Cf.

Stable
ICU 2.0
U_PRIVATE_USE_CHAR 

Co.

Stable
ICU 2.0
U_SURROGATE 

Cs.

Stable
ICU 2.0
U_DASH_PUNCTUATION 

Pd.

Stable
ICU 2.0
U_START_PUNCTUATION 

Ps.

Stable
ICU 2.0
U_END_PUNCTUATION 

Pe.

Stable
ICU 2.0
U_CONNECTOR_PUNCTUATION 

Pc.

Stable
ICU 2.0
U_OTHER_PUNCTUATION 

Po.

Stable
ICU 2.0
U_MATH_SYMBOL 

Sm.

Stable
ICU 2.0
U_CURRENCY_SYMBOL 

Sc.

Stable
ICU 2.0
U_MODIFIER_SYMBOL 

Sk.

Stable
ICU 2.0
U_OTHER_SYMBOL 

So.

Stable
ICU 2.0
U_INITIAL_PUNCTUATION 

Pi.

Stable
ICU 2.0
U_FINAL_PUNCTUATION 

Pf.

Stable
ICU 2.0
U_CHAR_CATEGORY_COUNT 

One higher than the last enum UCharCategory constant.

This numeric value is stable (will not change), see http://www.unicode.org/policies/stability_policy.html#Property_Value

Stable
ICU 2.0

Definition at line 794 of file uchar.h.

◆ UCharDirection

This specifies the language directional property of a character set.

Stable
ICU 2.0
Enumerator
U_LEFT_TO_RIGHT 

L.

Stable
ICU 2.0
U_RIGHT_TO_LEFT 

R.

Stable
ICU 2.0
U_EUROPEAN_NUMBER 

EN.

Stable
ICU 2.0
U_EUROPEAN_NUMBER_SEPARATOR 

ES.

Stable
ICU 2.0
U_EUROPEAN_NUMBER_TERMINATOR 

ET.

Stable
ICU 2.0
U_ARABIC_NUMBER 

AN.

Stable
ICU 2.0
U_COMMON_NUMBER_SEPARATOR 

CS.

Stable
ICU 2.0
U_BLOCK_SEPARATOR 

B.

Stable
ICU 2.0
U_SEGMENT_SEPARATOR 

S.

Stable
ICU 2.0
U_WHITE_SPACE_NEUTRAL 

WS.

Stable
ICU 2.0
U_OTHER_NEUTRAL 

ON.

Stable
ICU 2.0
U_LEFT_TO_RIGHT_EMBEDDING 

LRE.

Stable
ICU 2.0
U_LEFT_TO_RIGHT_OVERRIDE 

LRO.

Stable
ICU 2.0
U_RIGHT_TO_LEFT_ARABIC 

AL.

Stable
ICU 2.0
U_RIGHT_TO_LEFT_EMBEDDING 

RLE.

Stable
ICU 2.0
U_RIGHT_TO_LEFT_OVERRIDE 

RLO.

Stable
ICU 2.0
U_POP_DIRECTIONAL_FORMAT 

PDF.

Stable
ICU 2.0
U_DIR_NON_SPACING_MARK 

NSM.

Stable
ICU 2.0
U_BOUNDARY_NEUTRAL 

BN.

Stable
ICU 2.0
U_FIRST_STRONG_ISOLATE 

FSI.

Stable
ICU 52
U_LEFT_TO_RIGHT_ISOLATE 

LRI.

Stable
ICU 52
U_RIGHT_TO_LEFT_ISOLATE 

RLI.

Stable
ICU 52
U_POP_DIRECTIONAL_ISOLATE 

PDI.

Stable
ICU 52
U_CHAR_DIRECTION_COUNT 

One more than the highest UCharDirection value.

The highest value is available via u_getIntPropertyMaxValue(UCHAR_BIDI_CLASS).

Deprecated
ICU 58 The numeric value may change over time, see ICU ticket #12420.

Definition at line 991 of file uchar.h.

◆ UCharNameChoice

Selector constants for u_charName().

u_charName() returns the "modern" name of a Unicode character; or the name that was defined in Unicode version 1.0, before the Unicode standard merged with ISO-10646; or an "extended" name that gives each Unicode code point a unique name.

See also
u_charName
Stable
ICU 2.0
Enumerator
U_UNICODE_CHAR_NAME 

Unicode character name (Name property).

Stable
ICU 2.0
U_UNICODE_10_CHAR_NAME 

The Unicode_1_Name property value which is of little practical value.

Beginning with ICU 49, ICU APIs return an empty string for this name choice.

Deprecated
ICU 49
U_EXTENDED_CHAR_NAME 

Standard or synthetic character name.

Stable
ICU 2.0
U_CHAR_NAME_ALIAS 

Corrected name from NameAliases.txt.

Stable
ICU 4.4
U_CHAR_NAME_CHOICE_COUNT 

One more than the highest normal UCharNameChoice value.

Deprecated
ICU 58 The numeric value may change over time, see ICU ticket #12420.

Definition at line 1988 of file uchar.h.

◆ UDecompositionType

Decomposition Type constants.

See also
UCHAR_DECOMPOSITION_TYPE
Stable
ICU 2.2
Enumerator
U_DT_COUNT 

One more than the highest normal UDecompositionType value.

The highest value is available via u_getIntPropertyMaxValue(UCHAR_DECOMPOSITION_TYPE).

Deprecated
ICU 58 The numeric value may change over time, see ICU ticket #12420.

Definition at line 2043 of file uchar.h.

◆ UEastAsianWidth

East Asian Width constants.

See also
UCHAR_EAST_ASIAN_WIDTH
u_getIntPropertyValue
Stable
ICU 2.2
Enumerator
U_EA_COUNT 

One more than the highest normal UEastAsianWidth value.

The highest value is available via u_getIntPropertyMaxValue(UCHAR_EAST_ASIAN_WIDTH).

Deprecated
ICU 58 The numeric value may change over time, see ICU ticket #12420.

Definition at line 1953 of file uchar.h.

◆ UGraphemeClusterBreak

Grapheme Cluster Break constants.

See also
UCHAR_GRAPHEME_CLUSTER_BREAK
Stable
ICU 3.4
Enumerator
U_GCB_SPACING_MARK 
Stable
ICU 4.0
U_GCB_PREPEND 
Stable
ICU 4.0
U_GCB_REGIONAL_INDICATOR 
Stable
ICU 50
U_GCB_E_BASE 
Stable
ICU 58
U_GCB_E_BASE_GAZ 
Stable
ICU 58
U_GCB_E_MODIFIER 
Stable
ICU 58
U_GCB_GLUE_AFTER_ZWJ 
Stable
ICU 58
U_GCB_ZWJ 
Stable
ICU 58
U_GCB_COUNT 

One more than the highest normal UGraphemeClusterBreak value.

The highest value is available via u_getIntPropertyMaxValue(UCHAR_GRAPHEME_CLUSTER_BREAK).

Deprecated
ICU 58 The numeric value may change over time, see ICU ticket #12420.

Definition at line 2248 of file uchar.h.

◆ UHangulSyllableType

Hangul Syllable Type constants.

See also
UCHAR_HANGUL_SYLLABLE_TYPE
Stable
ICU 2.6
Enumerator
U_HST_COUNT 

One more than the highest normal UHangulSyllableType value.

The highest value is available via u_getIntPropertyMaxValue(UCHAR_HANGUL_SYLLABLE_TYPE).

Deprecated
ICU 58 The numeric value may change over time, see ICU ticket #12420.

Definition at line 2523 of file uchar.h.

◆ UIndicPositionalCategory

Indic Positional Category constants.

See also
UCHAR_INDIC_POSITIONAL_CATEGORY
Stable
ICU 63
Enumerator
U_INPC_NA 
Stable
ICU 63
U_INPC_BOTTOM 
Stable
ICU 63
U_INPC_BOTTOM_AND_LEFT 
Stable
ICU 63
U_INPC_BOTTOM_AND_RIGHT 
Stable
ICU 63
U_INPC_LEFT 
Stable
ICU 63
U_INPC_LEFT_AND_RIGHT 
Stable
ICU 63
U_INPC_OVERSTRUCK 
Stable
ICU 63
U_INPC_RIGHT 
Stable
ICU 63
U_INPC_TOP 
Stable
ICU 63
U_INPC_TOP_AND_BOTTOM 
Stable
ICU 63
U_INPC_TOP_AND_BOTTOM_AND_RIGHT 
Stable
ICU 63
U_INPC_TOP_AND_LEFT 
Stable
ICU 63
U_INPC_TOP_AND_LEFT_AND_RIGHT 
Stable
ICU 63
U_INPC_TOP_AND_RIGHT 
Stable
ICU 63
U_INPC_VISUAL_ORDER_LEFT 
Stable
ICU 63
U_INPC_TOP_AND_BOTTOM_AND_LEFT 
Stable
ICU 66

Definition at line 2553 of file uchar.h.

◆ UIndicSyllabicCategory

Indic Syllabic Category constants.

See also
UCHAR_INDIC_SYLLABIC_CATEGORY
Stable
ICU 63
Enumerator
U_INSC_OTHER 
Stable
ICU 63
U_INSC_AVAGRAHA 
Stable
ICU 63
U_INSC_BINDU 
Stable
ICU 63
U_INSC_BRAHMI_JOINING_NUMBER 
Stable
ICU 63
U_INSC_CANTILLATION_MARK 
Stable
ICU 63
U_INSC_CONSONANT 
Stable
ICU 63
U_INSC_CONSONANT_DEAD 
Stable
ICU 63
U_INSC_CONSONANT_FINAL 
Stable
ICU 63
U_INSC_CONSONANT_HEAD_LETTER 
Stable
ICU 63
U_INSC_CONSONANT_INITIAL_POSTFIXED 
Stable
ICU 63
U_INSC_CONSONANT_KILLER 
Stable
ICU 63
U_INSC_CONSONANT_MEDIAL 
Stable
ICU 63
U_INSC_CONSONANT_PLACEHOLDER 
Stable
ICU 63
U_INSC_CONSONANT_PRECEDING_REPHA 
Stable
ICU 63
U_INSC_CONSONANT_PREFIXED 
Stable
ICU 63
U_INSC_CONSONANT_SUBJOINED 
Stable
ICU 63
U_INSC_CONSONANT_SUCCEEDING_REPHA 
Stable
ICU 63
U_INSC_CONSONANT_WITH_STACKER 
Stable
ICU 63
U_INSC_GEMINATION_MARK 
Stable
ICU 63
U_INSC_INVISIBLE_STACKER 
Stable
ICU 63
U_INSC_JOINER 
Stable
ICU 63
U_INSC_MODIFYING_LETTER 
Stable
ICU 63
U_INSC_NON_JOINER 
Stable
ICU 63
U_INSC_NUKTA 
Stable
ICU 63
U_INSC_NUMBER 
Stable
ICU 63
U_INSC_NUMBER_JOINER 
Stable
ICU 63
U_INSC_PURE_KILLER 
Stable
ICU 63
U_INSC_REGISTER_SHIFTER 
Stable
ICU 63
U_INSC_SYLLABLE_MODIFIER 
Stable
ICU 63
U_INSC_TONE_LETTER 
Stable
ICU 63
U_INSC_TONE_MARK 
Stable
ICU 63
U_INSC_VIRAMA 
Stable
ICU 63
U_INSC_VISARGA 
Stable
ICU 63
U_INSC_VOWEL 
Stable
ICU 63
U_INSC_VOWEL_DEPENDENT 
Stable
ICU 63
U_INSC_VOWEL_INDEPENDENT 
Stable
ICU 63

Definition at line 2600 of file uchar.h.

◆ UJoiningGroup

Joining Group constants.

See also
UCHAR_JOINING_GROUP
Stable
ICU 2.2
Enumerator
U_JG_TEH_MARBUTA_GOAL 
Stable
ICU 4.6
U_JG_FE 
Stable
ICU 2.6
U_JG_KHAPH 
Stable
ICU 2.6
U_JG_ZHAIN 
Stable
ICU 2.6
U_JG_BURUSHASKI_YEH_BARREE 
Stable
ICU 4.0
U_JG_FARSI_YEH 
Stable
ICU 4.4
U_JG_NYA 
Stable
ICU 4.4
U_JG_ROHINGYA_YEH 
Stable
ICU 49
U_JG_MANICHAEAN_ALEPH 
Stable
ICU 54
U_JG_MANICHAEAN_AYIN 
Stable
ICU 54
U_JG_MANICHAEAN_BETH 
Stable
ICU 54
U_JG_MANICHAEAN_DALETH 
Stable
ICU 54
U_JG_MANICHAEAN_DHAMEDH 
Stable
ICU 54
U_JG_MANICHAEAN_FIVE 
Stable
ICU 54
U_JG_MANICHAEAN_GIMEL 
Stable
ICU 54
U_JG_MANICHAEAN_HETH 
Stable
ICU 54
U_JG_MANICHAEAN_HUNDRED 
Stable
ICU 54
U_JG_MANICHAEAN_KAPH 
Stable
ICU 54
U_JG_MANICHAEAN_LAMEDH 
Stable
ICU 54
U_JG_MANICHAEAN_MEM 
Stable
ICU 54
U_JG_MANICHAEAN_NUN 
Stable
ICU 54
U_JG_MANICHAEAN_ONE 
Stable
ICU 54
U_JG_MANICHAEAN_PE 
Stable
ICU 54
U_JG_MANICHAEAN_QOPH 
Stable
ICU 54
U_JG_MANICHAEAN_RESH 
Stable
ICU 54
U_JG_MANICHAEAN_SADHE 
Stable
ICU 54
U_JG_MANICHAEAN_SAMEKH 
Stable
ICU 54
U_JG_MANICHAEAN_TAW 
Stable
ICU 54
U_JG_MANICHAEAN_TEN 
Stable
ICU 54
U_JG_MANICHAEAN_TETH 
Stable
ICU 54
U_JG_MANICHAEAN_THAMEDH 
Stable
ICU 54
U_JG_MANICHAEAN_TWENTY 
Stable
ICU 54
U_JG_MANICHAEAN_WAW 
Stable
ICU 54
U_JG_MANICHAEAN_YODH 
Stable
ICU 54
U_JG_MANICHAEAN_ZAYIN 
Stable
ICU 54
U_JG_STRAIGHT_WAW 
Stable
ICU 54
U_JG_AFRICAN_FEH 
Stable
ICU 58
U_JG_AFRICAN_NOON 
Stable
ICU 58
U_JG_AFRICAN_QAF 
Stable
ICU 58
U_JG_MALAYALAM_BHA 
Stable
ICU 60
U_JG_MALAYALAM_JA 
Stable
ICU 60
U_JG_MALAYALAM_LLA 
Stable
ICU 60
U_JG_MALAYALAM_LLLA 
Stable
ICU 60
U_JG_MALAYALAM_NGA 
Stable
ICU 60
U_JG_MALAYALAM_NNA 
Stable
ICU 60
U_JG_MALAYALAM_NNNA 
Stable
ICU 60
U_JG_MALAYALAM_NYA 
Stable
ICU 60
U_JG_MALAYALAM_RA 
Stable
ICU 60
U_JG_MALAYALAM_SSA 
Stable
ICU 60
U_JG_MALAYALAM_TTA 
Stable
ICU 60
U_JG_HANIFI_ROHINGYA_KINNA_YA 
Stable
ICU 62
U_JG_HANIFI_ROHINGYA_PA 
Stable
ICU 62
U_JG_THIN_YEH 
Stable
ICU 70
U_JG_VERTICAL_TAIL 
Stable
ICU 70
U_JG_COUNT 

One more than the highest normal UJoiningGroup value.

The highest value is available via u_getIntPropertyMaxValue(UCHAR_JOINING_GROUP).

Deprecated
ICU 58 The numeric value may change over time, see ICU ticket #12420.

Definition at line 2115 of file uchar.h.

◆ UJoiningType

Joining Type constants.

See also
UCHAR_JOINING_TYPE
Stable
ICU 2.2
Enumerator
U_JT_COUNT 

One more than the highest normal UJoiningType value.

The highest value is available via u_getIntPropertyMaxValue(UCHAR_JOINING_TYPE).

Deprecated
ICU 58 The numeric value may change over time, see ICU ticket #12420.

Definition at line 2085 of file uchar.h.

◆ ULineBreak

enum ULineBreak

Line Break constants.

See also
UCHAR_LINE_BREAK
Stable
ICU 2.2
Enumerator
U_LB_INSEPARABLE 

Renamed from the misspelled "inseperable" in Unicode 4.0.1/ICU 3.0.

Stable
ICU 3.0
U_LB_NEXT_LINE 
Stable
ICU 2.6
U_LB_WORD_JOINER 
Stable
ICU 2.6
U_LB_H2 
Stable
ICU 3.4
U_LB_H3 
Stable
ICU 3.4
U_LB_JL 
Stable
ICU 3.4
U_LB_JT 
Stable
ICU 3.4
U_LB_JV 
Stable
ICU 3.4
U_LB_CLOSE_PARENTHESIS 
Stable
ICU 4.4
U_LB_CONDITIONAL_JAPANESE_STARTER 
Stable
ICU 49
U_LB_HEBREW_LETTER 
Stable
ICU 49
U_LB_REGIONAL_INDICATOR 
Stable
ICU 50
U_LB_E_BASE 
Stable
ICU 58
U_LB_E_MODIFIER 
Stable
ICU 58
U_LB_ZWJ 
Stable
ICU 58
U_LB_AKSARA 
Stable
ICU 74
U_LB_AKSARA_PREBASE 
Stable
ICU 74
U_LB_AKSARA_START 
Stable
ICU 74
U_LB_VIRAMA_FINAL 
Stable
ICU 74
U_LB_VIRAMA 
Stable
ICU 74
U_LB_COUNT 

One more than the highest normal ULineBreak value.

The highest value is available via u_getIntPropertyMaxValue(UCHAR_LINE_BREAK).

Deprecated
ICU 58 The numeric value may change over time, see ICU ticket #12420.

Definition at line 2402 of file uchar.h.

◆ UNumericType

Numeric Type constants.

See also
UCHAR_NUMERIC_TYPE
Stable
ICU 2.2
Enumerator
U_NT_COUNT 

One more than the highest normal UNumericType value.

The highest value is available via u_getIntPropertyMaxValue(UCHAR_NUMERIC_TYPE).

Deprecated
ICU 58 The numeric value may change over time, see ICU ticket #12420.

Definition at line 2495 of file uchar.h.

◆ UProperty

enum UProperty

Selection constants for Unicode properties.

These constants are used in functions like u_hasBinaryProperty to select one of the Unicode properties.

The properties APIs are intended to reflect Unicode properties as defined in the Unicode Character Database (UCD) and Unicode Technical Reports (UTR).

For details about the properties see UAX #44: Unicode Character Database (http://www.unicode.org/reports/tr44/).

Important: If ICU is built with UCD files from Unicode versions below, e.g., 3.2, then properties marked with "new in Unicode 3.2" are not or not fully available. Check u_getUnicodeVersion to be sure.

See also
u_hasBinaryProperty
u_getIntPropertyValue
u_getUnicodeVersion
Stable
ICU 2.1
Enumerator
UCHAR_ALPHABETIC 

Binary property Alphabetic.

Same as u_isUAlphabetic, different from u_isalpha. Lu+Ll+Lt+Lm+Lo+Nl+Other_Alphabetic

Stable
ICU 2.1
UCHAR_BINARY_START 

First constant for binary Unicode properties.

Stable
ICU 2.1
UCHAR_ASCII_HEX_DIGIT 

Binary property ASCII_Hex_Digit.

0-9 A-F a-f

Stable
ICU 2.1
UCHAR_BIDI_CONTROL 

Binary property Bidi_Control.

Format controls which have specific functions in the Bidi Algorithm.

Stable
ICU 2.1
UCHAR_BIDI_MIRRORED 

Binary property Bidi_Mirrored.

Characters that may change display in RTL text. Same as u_isMirrored. See Bidi Algorithm, UTR 9.

Stable
ICU 2.1
UCHAR_DASH 

Binary property Dash.

Variations of dashes.

Stable
ICU 2.1
UCHAR_DEFAULT_IGNORABLE_CODE_POINT 

Binary property Default_Ignorable_Code_Point (new in Unicode 3.2).

Ignorable in most processing. <2060..206F, FFF0..FFFB, E0000..E0FFF>+Other_Default_Ignorable_Code_Point+(Cf+Cc+Cs-White_Space)

Stable
ICU 2.1
UCHAR_DEPRECATED 

Binary property Deprecated (new in Unicode 3.2).

The usage of deprecated characters is strongly discouraged.

Stable
ICU 2.1
UCHAR_DIACRITIC 

Binary property Diacritic.

Characters that linguistically modify the meaning of another character to which they apply.

Stable
ICU 2.1
UCHAR_EXTENDER 

Binary property Extender.

Extend the value or shape of a preceding alphabetic character, e.g., length and iteration marks.

Stable
ICU 2.1
UCHAR_FULL_COMPOSITION_EXCLUSION 

Binary property Full_Composition_Exclusion.

CompositionExclusions.txt+Singleton Decompositions+ Non-Starter Decompositions.

Stable
ICU 2.1
UCHAR_GRAPHEME_BASE 

Binary property Grapheme_Base (new in Unicode 3.2).

For programmatic determination of grapheme cluster boundaries. [0..10FFFF]-Cc-Cf-Cs-Co-Cn-Zl-Zp-Grapheme_Link-Grapheme_Extend-CGJ

Stable
ICU 2.1
UCHAR_GRAPHEME_EXTEND 

Binary property Grapheme_Extend (new in Unicode 3.2).

For programmatic determination of grapheme cluster boundaries. Me+Mn+Mc+Other_Grapheme_Extend-Grapheme_Link-CGJ

Stable
ICU 2.1
UCHAR_GRAPHEME_LINK 

Binary property Grapheme_Link (new in Unicode 3.2).

For programmatic determination of grapheme cluster boundaries.

Stable
ICU 2.1
UCHAR_HEX_DIGIT 

Binary property Hex_Digit.

Characters commonly used for hexadecimal numbers.

Stable
ICU 2.1
UCHAR_HYPHEN 

Binary property Hyphen.

Dashes used to mark connections between pieces of words, plus the Katakana middle dot.

Stable
ICU 2.1
UCHAR_ID_CONTINUE 

Binary property ID_Continue.

Characters that can continue an identifier. DerivedCoreProperties.txt also says "NOTE: Cf characters should be filtered out." ID_Start+Mn+Mc+Nd+Pc

Stable
ICU 2.1
UCHAR_ID_START 

Binary property ID_Start.

Characters that can start an identifier. Lu+Ll+Lt+Lm+Lo+Nl

Stable
ICU 2.1
UCHAR_IDEOGRAPHIC 

Binary property Ideographic.

CJKV ideographs.

Stable
ICU 2.1
UCHAR_IDS_BINARY_OPERATOR 

Binary property IDS_Binary_Operator (new in Unicode 3.2).

For programmatic determination of Ideographic Description Sequences.

Stable
ICU 2.1
UCHAR_IDS_TRINARY_OPERATOR 

Binary property IDS_Trinary_Operator (new in Unicode 3.2).

For programmatic determination of Ideographic Description Sequences.

Stable
ICU 2.1
UCHAR_JOIN_CONTROL 

Binary property Join_Control.

Format controls for cursive joining and ligation.

Stable
ICU 2.1
UCHAR_LOGICAL_ORDER_EXCEPTION 

Binary property Logical_Order_Exception (new in Unicode 3.2).

Characters that do not use logical order and require special handling in most processing.

Stable
ICU 2.1
UCHAR_LOWERCASE 

Binary property Lowercase.

Same as u_isULowercase, different from u_islower. Ll+Other_Lowercase

Stable
ICU 2.1
UCHAR_MATH 

Binary property Math.

Sm+Other_Math

Stable
ICU 2.1
UCHAR_NONCHARACTER_CODE_POINT 

Binary property Noncharacter_Code_Point.

Code points that are explicitly defined as illegal for the encoding of characters.

Stable
ICU 2.1
UCHAR_QUOTATION_MARK 

Binary property Quotation_Mark.

Stable
ICU 2.1
UCHAR_RADICAL 

Binary property Radical (new in Unicode 3.2).

For programmatic determination of Ideographic Description Sequences.

Stable
ICU 2.1
UCHAR_SOFT_DOTTED 

Binary property Soft_Dotted (new in Unicode 3.2).

Characters with a "soft dot", like i or j. An accent placed on these characters causes the dot to disappear.

Stable
ICU 2.1
UCHAR_TERMINAL_PUNCTUATION 

Binary property Terminal_Punctuation.

Punctuation characters that generally mark the end of textual units.

Stable
ICU 2.1
UCHAR_UNIFIED_IDEOGRAPH 

Binary property Unified_Ideograph (new in Unicode 3.2).

For programmatic determination of Ideographic Description Sequences.

Stable
ICU 2.1
UCHAR_UPPERCASE 

Binary property Uppercase.

Same as u_isUUppercase, different from u_isupper. Lu+Other_Uppercase

Stable
ICU 2.1
UCHAR_WHITE_SPACE 

Binary property White_Space.

Same as u_isUWhiteSpace, different from u_isspace and u_isWhitespace. Space characters+TAB+CR+LF-ZWSP-ZWNBSP

Stable
ICU 2.1
UCHAR_XID_CONTINUE 

Binary property XID_Continue.

ID_Continue modified to allow closure under normalization forms NFKC and NFKD.

Stable
ICU 2.1
UCHAR_XID_START 

Binary property XID_Start.

ID_Start modified to allow closure under normalization forms NFKC and NFKD.

Stable
ICU 2.1
UCHAR_CASE_SENSITIVE 

Binary property Case_Sensitive.

Either the source of a case mapping or in the target of a case mapping. Not the same as the general category Cased_Letter.

Stable
ICU 2.6
UCHAR_S_TERM 

Binary property STerm (new in Unicode 4.0.1).

Sentence Terminal. Used in UAX #29: Text Boundaries (http://www.unicode.org/reports/tr29/)

Stable
ICU 3.0
UCHAR_VARIATION_SELECTOR 

Binary property Variation_Selector (new in Unicode 4.0.1).

Indicates all those characters that qualify as Variation Selectors. For details on the behavior of these characters, see StandardizedVariants.html and 15.6 Variation Selectors.

Stable
ICU 3.0
UCHAR_NFD_INERT 

Binary property NFD_Inert.

ICU-specific property for characters that are inert under NFD, i.e., they do not interact with adjacent characters. See the documentation for the Normalizer2 class and the Normalizer2::isInert() method.

Stable
ICU 3.0
UCHAR_NFKD_INERT 

Binary property NFKD_Inert.

ICU-specific property for characters that are inert under NFKD, i.e., they do not interact with adjacent characters. See the documentation for the Normalizer2 class and the Normalizer2::isInert() method.

Stable
ICU 3.0
UCHAR_NFC_INERT 

Binary property NFC_Inert.

ICU-specific property for characters that are inert under NFC, i.e., they do not interact with adjacent characters. See the documentation for the Normalizer2 class and the Normalizer2::isInert() method.

Stable
ICU 3.0
UCHAR_NFKC_INERT 

Binary property NFKC_Inert.

ICU-specific property for characters that are inert under NFKC, i.e., they do not interact with adjacent characters. See the documentation for the Normalizer2 class and the Normalizer2::isInert() method.

Stable
ICU 3.0
UCHAR_SEGMENT_STARTER 

Binary Property Segment_Starter.

ICU-specific property for characters that are starters in terms of Unicode normalization and combining character sequences. They have ccc=0 and do not occur in non-initial position of the canonical decomposition of any character (like a-umlaut in NFD and a Jamo T in an NFD(Hangul LVT)). ICU uses this property for segmenting a string for generating a set of canonically equivalent strings, e.g. for canonical closure while processing collation tailoring rules.

Stable
ICU 3.0
UCHAR_PATTERN_SYNTAX 

Binary property Pattern_Syntax (new in Unicode 4.1).

See UAX #31 Identifier and Pattern Syntax (http://www.unicode.org/reports/tr31/)

Stable
ICU 3.4
UCHAR_PATTERN_WHITE_SPACE 

Binary property Pattern_White_Space (new in Unicode 4.1).

See UAX #31 Identifier and Pattern Syntax (http://www.unicode.org/reports/tr31/)

Stable
ICU 3.4
UCHAR_POSIX_ALNUM 

Binary property alnum (a C/POSIX character class).

Implemented according to the UTS #18 Annex C Standard Recommendation. See the uchar.h file documentation.

Stable
ICU 3.4
UCHAR_POSIX_BLANK 

Binary property blank (a C/POSIX character class).

Implemented according to the UTS #18 Annex C Standard Recommendation. See the uchar.h file documentation.

Stable
ICU 3.4
UCHAR_POSIX_GRAPH 

Binary property graph (a C/POSIX character class).

Implemented according to the UTS #18 Annex C Standard Recommendation. See the uchar.h file documentation.

Stable
ICU 3.4
UCHAR_POSIX_PRINT 

Binary property print (a C/POSIX character class).

Implemented according to the UTS #18 Annex C Standard Recommendation. See the uchar.h file documentation.

Stable
ICU 3.4
UCHAR_POSIX_XDIGIT 

Binary property xdigit (a C/POSIX character class).

Implemented according to the UTS #18 Annex C Standard Recommendation. See the uchar.h file documentation.

Stable
ICU 3.4
UCHAR_CASED 

Binary property Cased.

For Lowercase, Uppercase and Titlecase characters.

Stable
ICU 4.4
UCHAR_CASE_IGNORABLE 

Binary property Case_Ignorable.

Used in context-sensitive case mappings.

Stable
ICU 4.4
UCHAR_CHANGES_WHEN_LOWERCASED 

Binary property Changes_When_Lowercased.

Stable
ICU 4.4
UCHAR_CHANGES_WHEN_UPPERCASED 

Binary property Changes_When_Uppercased.

Stable
ICU 4.4
UCHAR_CHANGES_WHEN_TITLECASED 

Binary property Changes_When_Titlecased.

Stable
ICU 4.4
UCHAR_CHANGES_WHEN_CASEFOLDED 

Binary property Changes_When_Casefolded.

Stable
ICU 4.4
UCHAR_CHANGES_WHEN_CASEMAPPED 

Binary property Changes_When_Casemapped.

Stable
ICU 4.4
UCHAR_CHANGES_WHEN_NFKC_CASEFOLDED 

Binary property Changes_When_NFKC_Casefolded.

Stable
ICU 4.4
UCHAR_EMOJI 

Binary property Emoji.

See http://www.unicode.org/reports/tr51/#Emoji_Properties

Stable
ICU 57
UCHAR_EMOJI_PRESENTATION 

Binary property Emoji_Presentation.

See http://www.unicode.org/reports/tr51/#Emoji_Properties

Stable
ICU 57
UCHAR_EMOJI_MODIFIER 

Binary property Emoji_Modifier.

See http://www.unicode.org/reports/tr51/#Emoji_Properties

Stable
ICU 57
UCHAR_EMOJI_MODIFIER_BASE 

Binary property Emoji_Modifier_Base.

See http://www.unicode.org/reports/tr51/#Emoji_Properties

Stable
ICU 57
UCHAR_EMOJI_COMPONENT 

Binary property Emoji_Component.

See http://www.unicode.org/reports/tr51/#Emoji_Properties

Stable
ICU 60
UCHAR_REGIONAL_INDICATOR 

Binary property Regional_Indicator.

Stable
ICU 60
UCHAR_PREPENDED_CONCATENATION_MARK 

Binary property Prepended_Concatenation_Mark.

Stable
ICU 60
UCHAR_EXTENDED_PICTOGRAPHIC 

Binary property Extended_Pictographic.

See http://www.unicode.org/reports/tr51/#Emoji_Properties

Stable
ICU 62
UCHAR_BASIC_EMOJI 

Binary property of strings Basic_Emoji.

See https://www.unicode.org/reports/tr51/#Emoji_Sets

Stable
ICU 70
UCHAR_EMOJI_KEYCAP_SEQUENCE 

Binary property of strings Emoji_Keycap_Sequence.

See https://www.unicode.org/reports/tr51/#Emoji_Sets

Stable
ICU 70
UCHAR_RGI_EMOJI_MODIFIER_SEQUENCE 

Binary property of strings RGI_Emoji_Modifier_Sequence.

See https://www.unicode.org/reports/tr51/#Emoji_Sets

Stable
ICU 70
UCHAR_RGI_EMOJI_FLAG_SEQUENCE 

Binary property of strings RGI_Emoji_Flag_Sequence.

See https://www.unicode.org/reports/tr51/#Emoji_Sets

Stable
ICU 70
UCHAR_RGI_EMOJI_TAG_SEQUENCE 

Binary property of strings RGI_Emoji_Tag_Sequence.

See https://www.unicode.org/reports/tr51/#Emoji_Sets

Stable
ICU 70
UCHAR_RGI_EMOJI_ZWJ_SEQUENCE 

Binary property of strings RGI_Emoji_ZWJ_Sequence.

See https://www.unicode.org/reports/tr51/#Emoji_Sets

Stable
ICU 70
UCHAR_RGI_EMOJI 

Binary property of strings RGI_Emoji.

See https://www.unicode.org/reports/tr51/#Emoji_Sets

Stable
ICU 70
UCHAR_IDS_UNARY_OPERATOR 

Binary property IDS_Unary_Operator.

For programmatic determination of Ideographic Description Sequences.

Draft
This API may be changed in the future versions and was introduced in ICU 74
UCHAR_ID_COMPAT_MATH_START 

Binary property ID_Compat_Math_Start.

Used in mathematical identifier profile in UAX #31.

Draft
This API may be changed in the future versions and was introduced in ICU 74
UCHAR_ID_COMPAT_MATH_CONTINUE 

Binary property ID_Compat_Math_Continue.

Used in mathematical identifier profile in UAX #31.

Draft
This API may be changed in the future versions and was introduced in ICU 74
UCHAR_BINARY_LIMIT 

One more than the last constant for binary Unicode properties.

Deprecated
ICU 58 The numeric value may change over time, see ICU ticket #12420.
UCHAR_BIDI_CLASS 

Enumerated property Bidi_Class.

Same as u_charDirection, returns UCharDirection values.

Stable
ICU 2.2
UCHAR_INT_START 

First constant for enumerated/integer Unicode properties.

Stable
ICU 2.2
UCHAR_BLOCK 

Enumerated property Block.

Same as ublock_getCode, returns UBlockCode values.

Stable
ICU 2.2
UCHAR_CANONICAL_COMBINING_CLASS 

Enumerated property Canonical_Combining_Class.

Same as u_getCombiningClass, returns 8-bit numeric values.

Stable
ICU 2.2
UCHAR_DECOMPOSITION_TYPE 

Enumerated property Decomposition_Type.

Returns UDecompositionType values.

Stable
ICU 2.2
UCHAR_EAST_ASIAN_WIDTH 

Enumerated property East_Asian_Width.

See http://www.unicode.org/reports/tr11/ Returns UEastAsianWidth values.

Stable
ICU 2.2
UCHAR_GENERAL_CATEGORY 

Enumerated property General_Category.

Same as u_charType, returns UCharCategory values.

Stable
ICU 2.2
UCHAR_JOINING_GROUP 

Enumerated property Joining_Group.

Returns UJoiningGroup values.

Stable
ICU 2.2
UCHAR_JOINING_TYPE 

Enumerated property Joining_Type.

Returns UJoiningType values.

Stable
ICU 2.2
UCHAR_LINE_BREAK 

Enumerated property Line_Break.

Returns ULineBreak values.

Stable
ICU 2.2
UCHAR_NUMERIC_TYPE 

Enumerated property Numeric_Type.

Returns UNumericType values.

Stable
ICU 2.2
UCHAR_SCRIPT 

Enumerated property Script.

Same as uscript_getScript, returns UScriptCode values.

Stable
ICU 2.2
UCHAR_HANGUL_SYLLABLE_TYPE 

Enumerated property Hangul_Syllable_Type, new in Unicode 4.

Returns UHangulSyllableType values.

Stable
ICU 2.6
UCHAR_NFD_QUICK_CHECK 

Enumerated property NFD_Quick_Check.

Returns UNormalizationCheckResult values.

Stable
ICU 3.0
UCHAR_NFKD_QUICK_CHECK 

Enumerated property NFKD_Quick_Check.

Returns UNormalizationCheckResult values.

Stable
ICU 3.0
UCHAR_NFC_QUICK_CHECK 

Enumerated property NFC_Quick_Check.

Returns UNormalizationCheckResult values.

Stable
ICU 3.0
UCHAR_NFKC_QUICK_CHECK 

Enumerated property NFKC_Quick_Check.

Returns UNormalizationCheckResult values.

Stable
ICU 3.0
UCHAR_LEAD_CANONICAL_COMBINING_CLASS 

Enumerated property Lead_Canonical_Combining_Class.

ICU-specific property for the ccc of the first code point of the decomposition, or lccc(c)=ccc(NFD(c)[0]). Useful for checking for canonically ordered text; see UNORM_FCD and http://www.unicode.org/notes/tn5/#FCD . Returns 8-bit numeric values like UCHAR_CANONICAL_COMBINING_CLASS.

Stable
ICU 3.0
UCHAR_TRAIL_CANONICAL_COMBINING_CLASS 

Enumerated property Trail_Canonical_Combining_Class.

ICU-specific property for the ccc of the last code point of the decomposition, or tccc(c)=ccc(NFD(c)[last]). Useful for checking for canonically ordered text; see UNORM_FCD and http://www.unicode.org/notes/tn5/#FCD . Returns 8-bit numeric values like UCHAR_CANONICAL_COMBINING_CLASS.

Stable
ICU 3.0
UCHAR_GRAPHEME_CLUSTER_BREAK 

Enumerated property Grapheme_Cluster_Break (new in Unicode 4.1).

Used in UAX #29: Text Boundaries (http://www.unicode.org/reports/tr29/) Returns UGraphemeClusterBreak values.

Stable
ICU 3.4
UCHAR_SENTENCE_BREAK 

Enumerated property Sentence_Break (new in Unicode 4.1).

Used in UAX #29: Text Boundaries (http://www.unicode.org/reports/tr29/) Returns USentenceBreak values.

Stable
ICU 3.4
UCHAR_WORD_BREAK 

Enumerated property Word_Break (new in Unicode 4.1).

Used in UAX #29: Text Boundaries (http://www.unicode.org/reports/tr29/) Returns UWordBreakValues values.

Stable
ICU 3.4
UCHAR_BIDI_PAIRED_BRACKET_TYPE 

Enumerated property Bidi_Paired_Bracket_Type (new in Unicode 6.3).

Used in UAX #9: Unicode Bidirectional Algorithm (http://www.unicode.org/reports/tr9/) Returns UBidiPairedBracketType values.

Stable
ICU 52
UCHAR_INDIC_POSITIONAL_CATEGORY 

Enumerated property Indic_Positional_Category.

New in Unicode 6.0 as provisional property Indic_Matra_Category; renamed and changed to informative in Unicode 8.0. See http://www.unicode.org/reports/tr44/#IndicPositionalCategory.txt

Stable
ICU 63
UCHAR_INDIC_SYLLABIC_CATEGORY 

Enumerated property Indic_Syllabic_Category.

New in Unicode 6.0 as provisional; informative since Unicode 8.0. See http://www.unicode.org/reports/tr44/#IndicSyllabicCategory.txt

Stable
ICU 63
UCHAR_VERTICAL_ORIENTATION 

Enumerated property Vertical_Orientation.

Used for UAX #50 Unicode Vertical Text Layout (https://www.unicode.org/reports/tr50/). New as a UCD property in Unicode 10.0.

Stable
ICU 63
UCHAR_INT_LIMIT 

One more than the last constant for enumerated/integer Unicode properties.

Deprecated
ICU 58 The numeric value may change over time, see ICU ticket #12420.
UCHAR_GENERAL_CATEGORY_MASK 

Bitmask property General_Category_Mask.

This is the General_Category property returned as a bit mask. When used in u_getIntPropertyValue(c), same as U_MASK(u_charType(c)), returns bit masks for UCharCategory values where exactly one bit is set. When used with u_getPropertyValueName() and u_getPropertyValueEnum(), a multi-bit mask is used for sets of categories like "Letters". Mask values should be cast to uint32_t.

Stable
ICU 2.4
UCHAR_MASK_START 

First constant for bit-mask Unicode properties.

Stable
ICU 2.4
UCHAR_MASK_LIMIT 

One more than the last constant for bit-mask Unicode properties.

Deprecated
ICU 58 The numeric value may change over time, see ICU ticket #12420.
UCHAR_NUMERIC_VALUE 

Double property Numeric_Value.

Corresponds to u_getNumericValue.

Stable
ICU 2.4
UCHAR_DOUBLE_START 

First constant for double Unicode properties.

Stable
ICU 2.4
UCHAR_DOUBLE_LIMIT 

One more than the last constant for double Unicode properties.

Deprecated
ICU 58 The numeric value may change over time, see ICU ticket #12420.
UCHAR_AGE 

String property Age.

Corresponds to u_charAge.

Stable
ICU 2.4
UCHAR_STRING_START 

First constant for string Unicode properties.

Stable
ICU 2.4
UCHAR_BIDI_MIRRORING_GLYPH 

String property Bidi_Mirroring_Glyph.

Corresponds to u_charMirror.

Stable
ICU 2.4
UCHAR_CASE_FOLDING 

String property Case_Folding.

Corresponds to u_strFoldCase in ustring.h.

Stable
ICU 2.4
UCHAR_ISO_COMMENT 

Deprecated string property ISO_Comment.

Corresponds to u_getISOComment.

Deprecated
ICU 49
UCHAR_LOWERCASE_MAPPING 

String property Lowercase_Mapping.

Corresponds to u_strToLower in ustring.h.

Stable
ICU 2.4
UCHAR_NAME 

String property Name.

Corresponds to u_charName.

Stable
ICU 2.4
UCHAR_SIMPLE_CASE_FOLDING 

String property Simple_Case_Folding.

Corresponds to u_foldCase.

Stable
ICU 2.4
UCHAR_SIMPLE_LOWERCASE_MAPPING 

String property Simple_Lowercase_Mapping.

Corresponds to u_tolower.

Stable
ICU 2.4
UCHAR_SIMPLE_TITLECASE_MAPPING 

String property Simple_Titlecase_Mapping.

Corresponds to u_totitle.

Stable
ICU 2.4
UCHAR_SIMPLE_UPPERCASE_MAPPING 

String property Simple_Uppercase_Mapping.

Corresponds to u_toupper.

Stable
ICU 2.4
UCHAR_TITLECASE_MAPPING 

String property Titlecase_Mapping.

Corresponds to u_strToTitle in ustring.h.

Stable
ICU 2.4
UCHAR_UNICODE_1_NAME 

String property Unicode_1_Name.

This property is of little practical value. Beginning with ICU 49, ICU APIs return an empty string for this property. Corresponds to u_charName(U_UNICODE_10_CHAR_NAME).

Deprecated
ICU 49
UCHAR_UPPERCASE_MAPPING 

String property Uppercase_Mapping.

Corresponds to u_strToUpper in ustring.h.

Stable
ICU 2.4
UCHAR_BIDI_PAIRED_BRACKET 

String property Bidi_Paired_Bracket (new in Unicode 6.3).

Corresponds to u_getBidiPairedBracket.

Stable
ICU 52
UCHAR_STRING_LIMIT 

One more than the last constant for string Unicode properties.

Deprecated
ICU 58 The numeric value may change over time, see ICU ticket #12420.
UCHAR_SCRIPT_EXTENSIONS 

Miscellaneous property Script_Extensions (new in Unicode 6.0).

Some characters are commonly used in multiple scripts. For more information, see UAX #24: http://www.unicode.org/reports/tr24/. Corresponds to uscript_hasScript and uscript_getScriptExtensions in uscript.h.

Stable
ICU 4.6
UCHAR_OTHER_PROPERTY_START 

First constant for Unicode properties with unusual value types.

Stable
ICU 4.6
UCHAR_OTHER_PROPERTY_LIMIT 

One more than the last constant for Unicode properties with unusual value types.

Deprecated
ICU 58 The numeric value may change over time, see ICU ticket #12420.
UCHAR_INVALID_CODE 

Represents a nonexistent or invalid property or property value.

Stable
ICU 2.4

Definition at line 195 of file uchar.h.

◆ UPropertyNameChoice

Selector constants for u_getPropertyName() and u_getPropertyValueName().

These selectors are used to choose which name is returned for a given property or value. All properties and values have a long name. Most have a short name, but some do not. Unicode allows for additional names, beyond the long and short name, which would be indicated by U_LONG_PROPERTY_NAME + i, where i=1, 2,...

See also
u_getPropertyName()
u_getPropertyValueName()
Stable
ICU 2.4
Enumerator
U_PROPERTY_NAME_CHOICE_COUNT 

One more than the highest normal UPropertyNameChoice value.

Deprecated
ICU 58 The numeric value may change over time, see ICU ticket #12420.

Definition at line 2025 of file uchar.h.

◆ USentenceBreak

Sentence Break constants.

See also
UCHAR_SENTENCE_BREAK
Stable
ICU 3.4
Enumerator
U_SB_COUNT 

One more than the highest normal USentenceBreak value.

The highest value is available via u_getIntPropertyMaxValue(UCHAR_SENTENCE_BREAK).

Deprecated
ICU 58 The numeric value may change over time, see ICU ticket #12420.

Definition at line 2363 of file uchar.h.

◆ UVerticalOrientation

Vertical Orientation constants.

See also
UCHAR_VERTICAL_ORIENTATION
Stable
ICU 63
Enumerator
U_VO_ROTATED 
Stable
ICU 63
U_VO_TRANSFORMED_ROTATED 
Stable
ICU 63
U_VO_TRANSFORMED_UPRIGHT 
Stable
ICU 63
U_VO_UPRIGHT 
Stable
ICU 63

Definition at line 2687 of file uchar.h.

◆ UWordBreakValues

Word Break constants.

(UWordBreak is a pre-existing enum type in ubrk.h for word break status tags.)

See also
UCHAR_WORD_BREAK
Stable
ICU 3.4
Enumerator
U_WB_CR 
Stable
ICU 4.0
U_WB_EXTEND 
Stable
ICU 4.0
U_WB_LF 
Stable
ICU 4.0
U_WB_MIDNUMLET 
Stable
ICU 4.0
U_WB_NEWLINE 
Stable
ICU 4.0
U_WB_REGIONAL_INDICATOR 
Stable
ICU 50
U_WB_HEBREW_LETTER 
Stable
ICU 52
U_WB_SINGLE_QUOTE 
Stable
ICU 52
U_WB_DOUBLE_QUOTE 
Stable
ICU 52
U_WB_E_BASE 
Stable
ICU 58
U_WB_E_BASE_GAZ 
Stable
ICU 58
U_WB_E_MODIFIER 
Stable
ICU 58
U_WB_GLUE_AFTER_ZWJ 
Stable
ICU 58
U_WB_ZWJ 
Stable
ICU 58
U_WB_WSEGSPACE 
Stable
ICU 62
U_WB_COUNT 

One more than the highest normal UWordBreakValues value.

The highest value is available via u_getIntPropertyMaxValue(UCHAR_WORD_BREAK).

Deprecated
ICU 58 The numeric value may change over time, see ICU ticket #12420.

Definition at line 2300 of file uchar.h.

Function Documentation

◆ u_charAge()

U_CAPI void u_charAge ( UChar32 c,
UVersionInfo versionArray )

Get the "age" of the code point.

The "age" is the Unicode version when the code point was first designated (as a non-character or for Private Use) or assigned a character. This can be useful to avoid emitting code points to receiving processes that do not accept newer characters. The data is from the UCD file DerivedAge.txt.

Parameters
cThe code point.
versionArrayThe Unicode version number array, to be filled in.
Stable
ICU 2.1

◆ u_charDigitValue()

U_CAPI int32_t u_charDigitValue ( UChar32 c)

Returns the decimal digit value of a decimal digit character.

Such characters have the general category "Nd" (decimal digit numbers) and a Numeric_Type of Decimal.

Unlike ICU releases before 2.6, no digit values are returned for any Han characters because Han number characters are often used with a special Chinese-style number format (with characters for powers of 10 in between) instead of in decimal-positional notation. Unicode 4 explicitly assigns Han number characters the Numeric_Type Numeric instead of Decimal. See Jitterbug 1483 for more details.

Use u_getIntPropertyValue(c, UCHAR_NUMERIC_TYPE) and u_getNumericValue() for complete numeric Unicode properties.

Parameters
cthe code point for which to get the decimal digit value
Returns
the decimal digit value of c, or -1 if c is not a decimal digit character
See also
u_getNumericValue
Stable
ICU 2.0

Referenced by icu::DecimalFormatSymbols::setSymbol().

◆ u_charDirection()

U_CAPI UCharDirection u_charDirection ( UChar32 c)

Returns the bidirectional category value for the code point, which is used in the Unicode bidirectional algorithm (UAX #9 http://www.unicode.org/reports/tr9/).

Note that some unassigned code points have bidi values of R or AL because they are in blocks that are reserved for Right-To-Left scripts.

Same as java.lang.Character.getDirectionality()

Parameters
cthe code point to be tested
Returns
the bidirectional category (UCharDirection) value
See also
UCharDirection
Stable
ICU 2.0

◆ u_charFromName()

U_CAPI UChar32 u_charFromName ( UCharNameChoice nameChoice,
const char * name,
UErrorCode * pErrorCode )

Find a Unicode character by its name and return its code point value.

The name is matched exactly and completely. If the name does not correspond to a code point, pErrorCode is set to U_INVALID_CHAR_FOUND. A Unicode 1.0 name is matched only if it differs from the modern name. Unicode names are all uppercase. Extended names are lowercase followed by an uppercase hexadecimal number, and within angle brackets.

Parameters
nameChoiceSelector for which name to match.
nameThe name to match.
pErrorCodePointer to a UErrorCode variable
Returns
The Unicode value of the code point with the given name, or an undefined value if there is no such code point.
See also
UCharNameChoice
u_charName
u_enumCharNames
Stable
ICU 1.7

◆ u_charMirror()

U_CAPI UChar32 u_charMirror ( UChar32 c)

Maps the specified character to a "mirror-image" character.

For characters with the Bidi_Mirrored property, implementations sometimes need a "poor man's" mapping to another Unicode character (code point) such that the default glyph may serve as the mirror-image of the default glyph of the specified character. This is useful for text conversion to and from codepages with visual order, and for displays without glyph selection capabilities.

Parameters
cthe code point to be mapped
Returns
another Unicode code point that may serve as a mirror-image substitute, or c itself if there is no such mapping or c does not have the Bidi_Mirrored property
See also
UCHAR_BIDI_MIRRORED
u_isMirrored
Stable
ICU 2.0

◆ u_charName()

U_CAPI int32_t u_charName ( UChar32 code,
UCharNameChoice nameChoice,
char * buffer,
int32_t bufferLength,
UErrorCode * pErrorCode )

Retrieve the name of a Unicode character.

Depending on nameChoice, the character name written into the buffer is the "modern" name or the name that was defined in Unicode version 1.0. The name contains only "invariant" characters like A-Z, 0-9, space, and '-'. Unicode 1.0 names are only retrieved if they are different from the modern names and if the data file contains the data for them. gennames may or may not be called with a command line option to include 1.0 names in unames.dat.

Parameters
codeThe character (code point) for which to get the name. It must be 0<=code<=0x10ffff.
nameChoiceSelector for which name to get.
bufferDestination address for copying the name. The name will always be zero-terminated. If there is no name, then the buffer will be set to the empty string.
bufferLength==sizeof(buffer)
pErrorCodePointer to a UErrorCode variable; check for U_SUCCESS() after u_charName() returns.
Returns
The length of the name, or 0 if there is no name for this character. If the bufferLength is less than or equal to the length, then the buffer contains the truncated name and the returned length indicates the full length of the name. The length does not include the zero-termination.
See also
UCharNameChoice
u_charFromName
u_enumCharNames
Stable
ICU 2.0

◆ u_charType()

U_CAPI int8_t u_charType ( UChar32 c)

Returns the general category value for the code point.

Same as java.lang.Character.getType().

Parameters
cthe code point to be tested
Returns
the general category (UCharCategory) value
See also
UCharCategory
Stable
ICU 2.0

◆ u_digit()

U_CAPI int32_t u_digit ( UChar32 ch,
int8_t radix )

Returns the decimal digit value of the code point in the specified radix.

If the radix is not in the range 2<=radix<=36 or if the value of c is not a valid digit in the specified radix, -1 is returned. A character is a valid digit if at least one of the following is true:

  • The character has a decimal digit value. Such characters have the general category "Nd" (decimal digit numbers) and a Numeric_Type of Decimal. In this case the value is the character's decimal digit value.
  • The character is one of the uppercase Latin letters 'A' through 'Z'. In this case the value is c-'A'+10.
  • The character is one of the lowercase Latin letters 'a' through 'z'. In this case the value is ch-'a'+10.
  • Latin letters from both the ASCII range (0061..007A, 0041..005A) as well as from the Fullwidth ASCII range (FF41..FF5A, FF21..FF3A) are recognized.

Same as java.lang.Character.digit().

Parameters
chthe code point to be tested.
radixthe radix.
Returns
the numeric value represented by the character in the specified radix, or -1 if there is no value or if the value exceeds the radix.
See also
UCHAR_NUMERIC_TYPE
u_forDigit
u_charDigitValue
u_isdigit
Stable
ICU 2.0

◆ u_enumCharNames()

U_CAPI void u_enumCharNames ( UChar32 start,
UChar32 limit,
UEnumCharNamesFn * fn,
void * context,
UCharNameChoice nameChoice,
UErrorCode * pErrorCode )

Enumerate all assigned Unicode characters between the start and limit code points (start inclusive, limit exclusive) and call a function for each, passing the code point value and the character name.

For Unicode 1.0 names, only those are enumerated that differ from the modern names.

Parameters
startThe first code point in the enumeration range.
limitOne more than the last code point in the enumeration range (the first one after the range).
fnThe function that is to be called for each character name.
contextAn arbitrary pointer that is passed to the function.
nameChoiceSelector for which kind of names to enumerate.
pErrorCodePointer to a UErrorCode variable
See also
UCharNameChoice
UEnumCharNamesFn
u_charName
u_charFromName
Stable
ICU 1.7

◆ u_enumCharTypes()

U_CAPI void u_enumCharTypes ( UCharEnumTypeRange * enumRange,
const void * context )

Enumerate efficiently all code points with their Unicode general categories.

This is useful for building data structures (e.g., UnicodeSet's), for enumerating all assigned code points (type!=U_UNASSIGNED), etc.

For each contiguous range of code points with a given general category ("character type"), the UCharEnumTypeRange function is called. Adjacent ranges have different types. The Unicode Standard guarantees that the numeric value of the type is 0..31.

Parameters
enumRangea pointer to a function that is called for each contiguous range of code points with the same general category
contextan opaque pointer that is passed on to the callback function
Stable
ICU 2.1
See also
UCharCategory
UCharEnumTypeRange

◆ u_foldCase()

U_CAPI UChar32 u_foldCase ( UChar32 c,
uint32_t options )

The given character is mapped to its case folding equivalent according to UnicodeData.txt and CaseFolding.txt; if the character has no case folding equivalent, the character itself is returned.

This function only returns the simple, single-code point case mapping. Full case mappings should be used whenever possible because they produce better results by working on whole strings. They take into account the string context and the language and can map to a result string with a different length as appropriate. Full case mappings are applied by the string case mapping functions, see ustring.h and the UnicodeString class. See also the User Guide chapter on C/POSIX migration: https://unicode-org.github.io/icu/userguide/icu/posix#case-mappings

Parameters
cthe code point to be mapped
optionsEither U_FOLD_CASE_DEFAULT or U_FOLD_CASE_EXCLUDE_SPECIAL_I
Returns
the Simple_Case_Folding of the code point, if any; otherwise the code point itself.
Stable
ICU 2.0

◆ u_forDigit()

U_CAPI UChar32 u_forDigit ( int32_t digit,
int8_t radix )

Determines the character representation for a specific digit in the specified radix.

If the value of radix is not a valid radix, or the value of digit is not a valid digit in the specified radix, the null character (U+0000) is returned.

The radix argument is valid if it is greater than or equal to 2 and less than or equal to 36. The digit argument is valid if 0 <= digit < radix.

If the digit is less than 10, then '0' + digit is returned. Otherwise, the value 'a' + digit - 10 is returned.

Same as java.lang.Character.forDigit().

Parameters
digitthe number to convert to a character.
radixthe radix.
Returns
the char representation of the specified digit in the specified radix.
See also
u_digit
u_charDigitValue
u_isdigit
Stable
ICU 2.0

◆ u_getBidiPairedBracket()

U_CAPI UChar32 u_getBidiPairedBracket ( UChar32 c)

Maps the specified character to its paired bracket character.

For Bidi_Paired_Bracket_Type!=None, this is the same as u_charMirror(). Otherwise c itself is returned. See http://www.unicode.org/reports/tr9/

Parameters
cthe code point to be mapped
Returns
the paired bracket code point, or c itself if there is no such mapping (Bidi_Paired_Bracket_Type=None)
See also
UCHAR_BIDI_PAIRED_BRACKET
UCHAR_BIDI_PAIRED_BRACKET_TYPE
u_charMirror
Stable
ICU 52

◆ u_getBinaryPropertySet()

U_CAPI const USet * u_getBinaryPropertySet ( UProperty property,
UErrorCode * pErrorCode )

Returns a frozen USet for a binary property.

The library retains ownership over the returned object. Sets an error code if the property number is not one for a binary property.

The returned set contains all code points for which the property is true.

Parameters
propertyUCHAR_BINARY_START..UCHAR_BINARY_LIMIT-1
pErrorCodean in/out ICU UErrorCode
Returns
the property as a set
See also
UProperty
u_hasBinaryProperty
Unicode::fromUSet
Stable
ICU 63

◆ u_getCombiningClass()

U_CAPI uint8_t u_getCombiningClass ( UChar32 c)

Returns the combining class of the code point as specified in UnicodeData.txt.

Parameters
cthe code point of the character
Returns
the combining class of the character
Stable
ICU 2.0

◆ u_getFC_NFKC_Closure()

U_CAPI int32_t u_getFC_NFKC_Closure ( UChar32 c,
UChar * dest,
int32_t destCapacity,
UErrorCode * pErrorCode )

Get the FC_NFKC_Closure property string for a character.

See Unicode Standard Annex #15 for details, search for "FC_NFKC_Closure" or for "FNC": http://www.unicode.org/reports/tr15/

Parameters
cThe character (code point) for which to get the FC_NFKC_Closure string. It must be 0<=c<=0x10ffff.
destDestination address for copying the string. The string will be zero-terminated if possible. If there is no FC_NFKC_Closure string, then the buffer will be set to the empty string.
destCapacity==sizeof(dest)
pErrorCodePointer to a UErrorCode variable.
Returns
The length of the string, or 0 if there is no FC_NFKC_Closure string for this character. If the destCapacity is less than or equal to the length, then the buffer contains the truncated name and the returned length indicates the full length of the name. The length does not include the zero-termination.
Stable
ICU 2.2

◆ u_getIntPropertyMap()

U_CAPI const UCPMap * u_getIntPropertyMap ( UProperty property,
UErrorCode * pErrorCode )

Returns an immutable UCPMap for an enumerated/catalog/int-valued property.

The library retains ownership over the returned object. Sets an error code if the property number is not one for an "int property".

The returned object maps all Unicode code points to their values for that property. For documentation of the integer values see u_getIntPropertyValue().

Parameters
propertyUCHAR_INT_START..UCHAR_INT_LIMIT-1
pErrorCodean in/out ICU UErrorCode
Returns
the property as a map
See also
UProperty
u_getIntPropertyValue
Stable
ICU 63

◆ u_getIntPropertyMaxValue()

U_CAPI int32_t u_getIntPropertyMaxValue ( UProperty which)

Get the maximum value for an enumerated/integer/binary Unicode property.

Can be used together with u_getIntPropertyMinValue to allocate arrays of UnicodeSet or similar.

Examples for min/max values (for Unicode 3.2):

  • UCHAR_BIDI_CLASS: 0/18 (U_LEFT_TO_RIGHT/U_BOUNDARY_NEUTRAL)
  • UCHAR_SCRIPT: 0/45 (USCRIPT_COMMON/USCRIPT_TAGBANWA)
  • UCHAR_IDEOGRAPHIC: 0/1 (false/true)

For undefined UProperty constant values, min/max values will be 0/-1.

Parameters
whichUProperty selector constant, identifies which binary property to check. Must be UCHAR_BINARY_START<=which<UCHAR_BINARY_LIMIT or UCHAR_INT_START<=which<UCHAR_INT_LIMIT.
Returns
Maximum value returned by u_getIntPropertyValue for a Unicode property. <=0 if the property selector is out of range.
See also
UProperty
u_hasBinaryProperty
u_getUnicodeVersion
u_getIntPropertyMaxValue
u_getIntPropertyValue
Stable
ICU 2.2

◆ u_getIntPropertyMinValue()

U_CAPI int32_t u_getIntPropertyMinValue ( UProperty which)

Get the minimum value for an enumerated/integer/binary Unicode property.

Can be used together with u_getIntPropertyMaxValue to allocate arrays of UnicodeSet or similar.

Parameters
whichUProperty selector constant, identifies which binary property to check. Must be UCHAR_BINARY_START<=which<UCHAR_BINARY_LIMIT or UCHAR_INT_START<=which<UCHAR_INT_LIMIT.
Returns
Minimum value returned by u_getIntPropertyValue for a Unicode property. 0 if the property selector is out of range.
See also
UProperty
u_hasBinaryProperty
u_getUnicodeVersion
u_getIntPropertyMaxValue
u_getIntPropertyValue
Stable
ICU 2.2

◆ u_getIntPropertyValue()

U_CAPI int32_t u_getIntPropertyValue ( UChar32 c,
UProperty which )

Get the property value for an enumerated or integer Unicode property for a code point.

Also returns binary and mask property values.

Unicode, especially in version 3.2, defines many more properties than the original set in UnicodeData.txt.

The properties APIs are intended to reflect Unicode properties as defined in the Unicode Character Database (UCD) and Unicode Technical Reports (UTR). For details about the properties see http://www.unicode.org/ . For names of Unicode properties see the UCD file PropertyAliases.txt.

Sample usage: UEastAsianWidth ea=(UEastAsianWidth)u_getIntPropertyValue(c, UCHAR_EAST_ASIAN_WIDTH); UBool b=(UBool)u_getIntPropertyValue(c, UCHAR_IDEOGRAPHIC);

Parameters
cCode point to test.
whichUProperty selector constant, identifies which property to check. Must be UCHAR_BINARY_START<=which<UCHAR_BINARY_LIMIT or UCHAR_INT_START<=which<UCHAR_INT_LIMIT or UCHAR_MASK_START<=which<UCHAR_MASK_LIMIT.
Returns
Numeric value that is directly the property value or, for enumerated properties, corresponds to the numeric value of the enumerated constant of the respective property value enumeration type (cast to enum type if necessary). Returns 0 or 1 (for false/true) for binary Unicode properties. Returns a bit-mask for mask properties. Returns 0 if 'which' is out of bounds or if the Unicode version does not have data for the property at all, or not for this code point.
See also
UProperty
u_hasBinaryProperty
u_getIntPropertyMinValue
u_getIntPropertyMaxValue
u_getIntPropertyMap
u_getUnicodeVersion
Stable
ICU 2.2

◆ u_getISOComment()

int32_t u_getISOComment ( UChar32 c,
char * dest,
int32_t destCapacity,
UErrorCode * pErrorCode )

Returns an empty string.

Used to return the ISO 10646 comment for a character. The Unicode ISO_Comment property is deprecated and has no values.

Parameters
cThe character (code point) for which to get the ISO comment. It must be 0<=c<=0x10ffff.
destDestination address for copying the comment. The comment will be zero-terminated if possible. If there is no comment, then the buffer will be set to the empty string.
destCapacity==sizeof(dest)
pErrorCodePointer to a UErrorCode variable; check for U_SUCCESS() after u_getISOComment() returns.
Returns
0
Deprecated
ICU 49

◆ u_getNumericValue()

U_CAPI double u_getNumericValue ( UChar32 c)

Get the numeric value for a Unicode code point as defined in the Unicode Character Database.

A "double" return type is necessary because some numeric values are fractions, negative, or too large for int32_t.

For characters without any numeric values in the Unicode Character Database, this function will return U_NO_NUMERIC_VALUE. Note: This is different from the Unicode Standard which specifies NaN as the default value. (NaN is not available on all platforms.)

Similar to java.lang.Character.getNumericValue(), but u_getNumericValue() also supports negative values, large values, and fractions, while Java's getNumericValue() returns values 10..35 for ASCII letters.

Parameters
cCode point to get the numeric value for.
Returns
Numeric value of c, or U_NO_NUMERIC_VALUE if none is defined.
See also
U_NO_NUMERIC_VALUE
Stable
ICU 2.2

◆ u_getPropertyEnum()

U_CAPI UProperty u_getPropertyEnum ( const char * alias)

Return the UProperty enum for a given property name, as specified in the Unicode database file PropertyAliases.txt.

Short, long, and any other variants are recognized.

In addition, this function maps the synthetic names "gcm" / "General_Category_Mask" to the property UCHAR_GENERAL_CATEGORY_MASK. These names are not in PropertyAliases.txt.

Parameters
aliasthe property name to be matched. The name is compared using "loose matching" as described in PropertyAliases.txt.
Returns
a UProperty enum, or UCHAR_INVALID_CODE if the given name does not match any property.
See also
UProperty
Stable
ICU 2.4

◆ u_getPropertyName()

U_CAPI const char * u_getPropertyName ( UProperty property,
UPropertyNameChoice nameChoice )

Return the Unicode name for a given property, as given in the Unicode database file PropertyAliases.txt.

In addition, this function maps the property UCHAR_GENERAL_CATEGORY_MASK to the synthetic names "gcm" / "General_Category_Mask". These names are not in PropertyAliases.txt.

Parameters
propertyUProperty selector other than UCHAR_INVALID_CODE. If out of range, NULL is returned.
nameChoiceselector for which name to get. If out of range, NULL is returned. All properties have a long name. Most have a short name, but some do not. Unicode allows for additional names; if present these will be returned by U_LONG_PROPERTY_NAME + i, where i=1, 2,...
Returns
a pointer to the name, or NULL if either the property or the nameChoice is out of range. If a given nameChoice returns NULL, then all larger values of nameChoice will return NULL, with one exception: if NULL is returned for U_SHORT_PROPERTY_NAME, then U_LONG_PROPERTY_NAME (and higher) may still return a non-NULL value. The returned pointer is valid until u_cleanup() is called.
See also
UProperty
UPropertyNameChoice
Stable
ICU 2.4

◆ u_getPropertyValueEnum()

U_CAPI int32_t u_getPropertyValueEnum ( UProperty property,
const char * alias )

Return the property value integer for a given value name, as specified in the Unicode database file PropertyValueAliases.txt.

Short, long, and any other variants are recognized.

Note: Some of the names in PropertyValueAliases.txt will only be recognized with UCHAR_GENERAL_CATEGORY_MASK, not UCHAR_GENERAL_CATEGORY. These include: "C" / "Other", "L" / "Letter", "LC" / "Cased_Letter", "M" / "Mark", "N" / "Number", "P" / "Punctuation", "S" / "Symbol", and "Z" / "Separator".

Parameters
propertyUProperty selector constant. Must be UCHAR_BINARY_START<=which<UCHAR_BINARY_LIMIT or UCHAR_INT_START<=which<UCHAR_INT_LIMIT or UCHAR_MASK_START<=which<UCHAR_MASK_LIMIT. If out of range, UCHAR_INVALID_CODE is returned.
aliasthe value name to be matched. The name is compared using "loose matching" as described in PropertyValueAliases.txt.
Returns
a value integer or UCHAR_INVALID_CODE if the given name does not match any value of the given property, or if the property is invalid. Note: UCHAR_GENERAL_CATEGORY_MASK values are not values of UCharCategory, but rather mask values produced by U_GET_GC_MASK(). This allows grouped categories such as [:L:] to be represented.
See also
UProperty
Stable
ICU 2.4

◆ u_getPropertyValueName()

U_CAPI const char * u_getPropertyValueName ( UProperty property,
int32_t value,
UPropertyNameChoice nameChoice )

Return the Unicode name for a given property value, as given in the Unicode database file PropertyValueAliases.txt.

Note: Some of the names in PropertyValueAliases.txt can only be retrieved using UCHAR_GENERAL_CATEGORY_MASK, not UCHAR_GENERAL_CATEGORY. These include: "C" / "Other", "L" / "Letter", "LC" / "Cased_Letter", "M" / "Mark", "N" / "Number", "P" / "Punctuation", "S" / "Symbol", and "Z" / "Separator".

Parameters
propertyUProperty selector constant. Must be UCHAR_BINARY_START<=which<UCHAR_BINARY_LIMIT or UCHAR_INT_START<=which<UCHAR_INT_LIMIT or UCHAR_MASK_START<=which<UCHAR_MASK_LIMIT. If out of range, NULL is returned.
valueselector for a value for the given property. If out of range, NULL is returned. In general, valid values range from 0 up to some maximum. There are a few exceptions: (1.) UCHAR_BLOCK values begin at the non-zero value UBLOCK_BASIC_LATIN. (2.) UCHAR_CANONICAL_COMBINING_CLASS values are not contiguous and range from 0..240. (3.) UCHAR_GENERAL_CATEGORY_MASK values are not values of UCharCategory, but rather mask values produced by U_GET_GC_MASK(). This allows grouped categories such as [:L:] to be represented. Mask values range non-contiguously from 1..U_GC_P_MASK.
nameChoiceselector for which name to get. If out of range, NULL is returned. All values have a long name. Most have a short name, but some do not. Unicode allows for additional names; if present these will be returned by U_LONG_PROPERTY_NAME + i, where i=1, 2,...
Returns
a pointer to the name, or NULL if either the property or the nameChoice is out of range. If a given nameChoice returns NULL, then all larger values of nameChoice will return NULL, with one exception: if NULL is returned for U_SHORT_PROPERTY_NAME, then U_LONG_PROPERTY_NAME (and higher) may still return a non-NULL value. The returned pointer is valid until u_cleanup() is called.
See also
UProperty
UPropertyNameChoice
Stable
ICU 2.4

◆ u_getUnicodeVersion()

U_CAPI void u_getUnicodeVersion ( UVersionInfo versionArray)

Gets the Unicode version information.

The version array is filled in with the version information for the Unicode standard that is currently used by ICU. For example, Unicode version 3.1.1 is represented as an array with the values { 3, 1, 1, 0 }.

Parameters
versionArrayan output array that will be filled in with the Unicode version number
Stable
ICU 2.0

◆ u_hasBinaryProperty()

U_CAPI UBool u_hasBinaryProperty ( UChar32 c,
UProperty which )

Check a binary Unicode property for a code point.

Unicode, especially in version 3.2, defines many more properties than the original set in UnicodeData.txt.

The properties APIs are intended to reflect Unicode properties as defined in the Unicode Character Database (UCD) and Unicode Technical Reports (UTR). For details about the properties see http://www.unicode.org/ucd/ . For names of Unicode properties see the UCD file PropertyAliases.txt.

Important: If ICU is built with UCD files from Unicode versions below 3.2, then properties marked with "new in Unicode 3.2" are not or not fully available.

Parameters
cCode point to test.
whichUProperty selector constant, identifies which binary property to check. Must be UCHAR_BINARY_START<=which<UCHAR_BINARY_LIMIT.
Returns
true or false according to the binary Unicode property value for c. Also false if 'which' is out of bounds or if the Unicode version does not have data for the property at all.
See also
UProperty
u_getBinaryPropertySet
u_getIntPropertyValue
u_getUnicodeVersion
Stable
ICU 2.1

◆ u_isalnum()

U_CAPI UBool u_isalnum ( UChar32 c)

Determines whether the specified code point is an alphanumeric character (letter or digit) according to Java.

True for characters with general categories "L" (letters) and "Nd" (decimal digit numbers).

Same as java.lang.Character.isLetterOrDigit().

In addition to being equivalent to a Java function, this also serves as a C/POSIX migration function. See the comments about C/POSIX character classification functions in the documentation at the top of this header file.

Parameters
cthe code point to be tested
Returns
true if the code point is an alphanumeric character according to Character.isLetterOrDigit()
Stable
ICU 2.0

◆ u_isalpha()

U_CAPI UBool u_isalpha ( UChar32 c)

Determines whether the specified code point is a letter character.

True for general categories "L" (letters).

Same as java.lang.Character.isLetter().

In addition to being equivalent to a Java function, this also serves as a C/POSIX migration function. See the comments about C/POSIX character classification functions in the documentation at the top of this header file.

Parameters
cthe code point to be tested
Returns
true if the code point is a letter character
See also
u_isdigit
u_isalnum
Stable
ICU 2.0

◆ u_isbase()

U_CAPI UBool u_isbase ( UChar32 c)

Non-standard: Determines whether the specified code point is a base character.

True for general categories "L" (letters), "N" (numbers), "Mc" (spacing combining marks), and "Me" (enclosing marks).

Note that this is different from the Unicode Standard definition in chapter 3.6, conformance clause D51 “Base character”, which defines base characters as the code points with general categories Letter (L), Number (N), Punctuation (P), Symbol (S), or Space Separator (Zs).

Parameters
cthe code point to be tested
Returns
true if the code point is a base character according to this function
See also
u_isalpha
u_isdigit
Stable
ICU 2.0

◆ u_isblank()

U_CAPI UBool u_isblank ( UChar32 c)

Determines whether the specified code point is a "blank" or "horizontal space", a character that visibly separates words on a line.

The following are equivalent definitions:

true for Unicode White_Space characters except for "vertical space controls" where "vertical space controls" are the following characters: U+000A (LF) U+000B (VT) U+000C (FF) U+000D (CR) U+0085 (NEL) U+2028 (LS) U+2029 (PS)

same as

true for U+0009 (TAB) and characters with general category "Zs" (space separators).

Note: There are several ICU whitespace functions; please see the uchar.h file documentation for a detailed comparison.

This is a C/POSIX migration function. See the comments about C/POSIX character classification functions in the documentation at the top of this header file.

Parameters
cthe code point to be tested
Returns
true if the code point is a "blank"
Stable
ICU 2.6

◆ u_iscntrl()

U_CAPI UBool u_iscntrl ( UChar32 c)

Determines whether the specified code point is a control character (as defined by this function).

A control character is one of the following:

  • ISO 8-bit control character (U+0000..U+001f and U+007f..U+009f)
  • U_CONTROL_CHAR (Cc)
  • U_FORMAT_CHAR (Cf)
  • U_LINE_SEPARATOR (Zl)
  • U_PARAGRAPH_SEPARATOR (Zp)

This is a C/POSIX migration function. See the comments about C/POSIX character classification functions in the documentation at the top of this header file.

Parameters
cthe code point to be tested
Returns
true if the code point is a control character
See also
UCHAR_DEFAULT_IGNORABLE_CODE_POINT
u_isprint
Stable
ICU 2.0

◆ u_isdefined()

U_CAPI UBool u_isdefined ( UChar32 c)

Determines whether the specified code point is "defined", which usually means that it is assigned a character.

True for general categories other than "Cn" (other, not assigned), i.e., true for all code points mentioned in UnicodeData.txt.

Note that non-character code points (e.g., U+FDD0) are not "defined" (they are Cn), but surrogate code points are "defined" (Cs).

Same as java.lang.Character.isDefined().

Parameters
cthe code point to be tested
Returns
true if the code point is assigned a character
See also
u_isdigit
u_isalpha
u_isalnum
u_isupper
u_islower
u_istitle
Stable
ICU 2.0

◆ u_isdigit()

U_CAPI UBool u_isdigit ( UChar32 c)

Determines whether the specified code point is a digit character according to Java.

True for characters with general category "Nd" (decimal digit numbers). Beginning with Unicode 4, this is the same as testing for the Numeric_Type of Decimal.

Same as java.lang.Character.isDigit().

In addition to being equivalent to a Java function, this also serves as a C/POSIX migration function. See the comments about C/POSIX character classification functions in the documentation at the top of this header file.

Parameters
cthe code point to be tested
Returns
true if the code point is a digit character according to Character.isDigit()
Stable
ICU 2.0

◆ u_isgraph()

U_CAPI UBool u_isgraph ( UChar32 c)

Determines whether the specified code point is a "graphic" character (printable, excluding spaces).

true for all characters except those with general categories "Cc" (control codes), "Cf" (format controls), "Cs" (surrogates), "Cn" (unassigned), and "Z" (separators).

This is a C/POSIX migration function. See the comments about C/POSIX character classification functions in the documentation at the top of this header file.

Parameters
cthe code point to be tested
Returns
true if the code point is a "graphic" character
Stable
ICU 2.6

◆ u_isIDIgnorable()

U_CAPI UBool u_isIDIgnorable ( UChar32 c)

Determines if the specified character should be regarded as an ignorable character in an identifier, according to Java.

True for characters with general category "Cf" (format controls) as well as non-whitespace ISO controls (U+0000..U+0008, U+000E..U+001B, U+007F..U+009F).

Same as java.lang.Character.isIdentifierIgnorable().

Note that Unicode just recommends to ignore Cf (format controls).

Parameters
cthe code point to be tested
Returns
true if the code point is ignorable in identifiers according to Java
See also
UCHAR_DEFAULT_IGNORABLE_CODE_POINT
u_isIDStart
u_isIDPart
Stable
ICU 2.0

◆ u_isIDPart()

U_CAPI UBool u_isIDPart ( UChar32 c)

Determines if the specified character is permissible as a non-initial character of an identifier according to UAX #31 Unicode Identifier and Pattern Syntax.

Same as Unicode ID_Continue (UCHAR_ID_CONTINUE).

Parameters
cthe code point to be tested
Returns
true if the code point may occur as a non-initial character of an identifier
See also
UCHAR_ID_CONTINUE
u_isIDStart
u_isIDIgnorable
Stable
ICU 2.0

◆ u_isIDStart()

U_CAPI UBool u_isIDStart ( UChar32 c)

Determines if the specified character is permissible as the first character in an identifier according to UAX #31 Unicode Identifier and Pattern Syntax.

Same as Unicode ID_Start (UCHAR_ID_START).

Parameters
cthe code point to be tested
Returns
true if the code point may start an identifier
See also
UCHAR_ID_START
u_isalpha
u_isIDPart
Stable
ICU 2.0

◆ u_isISOControl()

U_CAPI UBool u_isISOControl ( UChar32 c)

Determines whether the specified code point is an ISO control code.

True for U+0000..U+001f and U+007f..U+009f (general category "Cc").

Same as java.lang.Character.isISOControl().

Parameters
cthe code point to be tested
Returns
true if the code point is an ISO control code
See also
u_iscntrl
Stable
ICU 2.6

◆ u_isJavaIDPart()

U_CAPI UBool u_isJavaIDPart ( UChar32 c)

Determines if the specified character is permissible in a Java identifier.

In addition to u_isIDPart(c), true for characters with general category "Sc" (currency symbols).

Same as java.lang.Character.isJavaIdentifierPart().

Parameters
cthe code point to be tested
Returns
true if the code point may occur in a Java identifier
See also
u_isIDIgnorable
u_isJavaIDStart
u_isalpha
u_isdigit
u_isIDPart
Stable
ICU 2.0

◆ u_isJavaIDStart()

U_CAPI UBool u_isJavaIDStart ( UChar32 c)

Determines if the specified character is permissible as the first character in a Java identifier.

In addition to u_isIDStart(c), true for characters with general categories "Sc" (currency symbols) and "Pc" (connecting punctuation).

Same as java.lang.Character.isJavaIdentifierStart().

Parameters
cthe code point to be tested
Returns
true if the code point may start a Java identifier
See also
u_isJavaIDPart
u_isalpha
u_isIDStart
Stable
ICU 2.0

◆ u_isJavaSpaceChar()

U_CAPI UBool u_isJavaSpaceChar ( UChar32 c)

Determine if the specified code point is a space character according to Java.

True for characters with general categories "Z" (separators), which does not include control codes (e.g., TAB or Line Feed).

Same as java.lang.Character.isSpaceChar().

Note: There are several ICU whitespace functions; please see the uchar.h file documentation for a detailed comparison.

Parameters
cthe code point to be tested
Returns
true if the code point is a space character according to Character.isSpaceChar()
See also
u_isspace
u_isWhitespace
u_isUWhiteSpace
Stable
ICU 2.6

◆ u_islower()

U_CAPI UBool u_islower ( UChar32 c)

Determines whether the specified code point has the general category "Ll" (lowercase letter).

Same as java.lang.Character.isLowerCase().

This misses some characters that are also lowercase but have a different general category value. In order to include those, use UCHAR_LOWERCASE.

In addition to being equivalent to a Java function, this also serves as a C/POSIX migration function. See the comments about C/POSIX character classification functions in the documentation at the top of this header file.

Parameters
cthe code point to be tested
Returns
true if the code point is an Ll lowercase letter
See also
UCHAR_LOWERCASE
u_isupper
u_istitle
Stable
ICU 2.0

◆ u_isMirrored()

U_CAPI UBool u_isMirrored ( UChar32 c)

Determines whether the code point has the Bidi_Mirrored property.

This property is set for characters that are commonly used in Right-To-Left contexts and need to be displayed with a "mirrored" glyph.

Same as java.lang.Character.isMirrored(). Same as UCHAR_BIDI_MIRRORED

Parameters
cthe code point to be tested
Returns
true if the character has the Bidi_Mirrored property
See also
UCHAR_BIDI_MIRRORED
Stable
ICU 2.0

◆ u_isprint()

U_CAPI UBool u_isprint ( UChar32 c)

Determines whether the specified code point is a printable character.

True for general categories other than "C" (controls).

This is a C/POSIX migration function. See the comments about C/POSIX character classification functions in the documentation at the top of this header file.

Parameters
cthe code point to be tested
Returns
true if the code point is a printable character
See also
UCHAR_DEFAULT_IGNORABLE_CODE_POINT
u_iscntrl
Stable
ICU 2.0

◆ u_ispunct()

U_CAPI UBool u_ispunct ( UChar32 c)

Determines whether the specified code point is a punctuation character.

True for characters with general categories "P" (punctuation).

This is a C/POSIX migration function. See the comments about C/POSIX character classification functions in the documentation at the top of this header file.

Parameters
cthe code point to be tested
Returns
true if the code point is a punctuation character
Stable
ICU 2.6

◆ u_isspace()

U_CAPI UBool u_isspace ( UChar32 c)

Determines if the specified character is a space character or not.

Note: There are several ICU whitespace functions; please see the uchar.h file documentation for a detailed comparison.

This is a C/POSIX migration function. See the comments about C/POSIX character classification functions in the documentation at the top of this header file.

Parameters
cthe character to be tested
Returns
true if the character is a space character; false otherwise.
See also
u_isJavaSpaceChar
u_isWhitespace
u_isUWhiteSpace
Stable
ICU 2.0

◆ u_istitle()

U_CAPI UBool u_istitle ( UChar32 c)

Determines whether the specified code point is a titlecase letter.

True for general category "Lt" (titlecase letter).

Same as java.lang.Character.isTitleCase().

Parameters
cthe code point to be tested
Returns
true if the code point is an Lt titlecase letter
See also
u_isupper
u_islower
u_totitle
Stable
ICU 2.0

◆ u_isUAlphabetic()

U_CAPI UBool u_isUAlphabetic ( UChar32 c)

Check if a code point has the Alphabetic Unicode property.

Same as u_hasBinaryProperty(c, UCHAR_ALPHABETIC). This is different from u_isalpha!

Parameters
cCode point to test
Returns
true if the code point has the Alphabetic Unicode property, false otherwise
See also
UCHAR_ALPHABETIC
u_isalpha
u_hasBinaryProperty
Stable
ICU 2.1

◆ u_isULowercase()

U_CAPI UBool u_isULowercase ( UChar32 c)

Check if a code point has the Lowercase Unicode property.

Same as u_hasBinaryProperty(c, UCHAR_LOWERCASE). This is different from u_islower!

Parameters
cCode point to test
Returns
true if the code point has the Lowercase Unicode property, false otherwise
See also
UCHAR_LOWERCASE
u_islower
u_hasBinaryProperty
Stable
ICU 2.1

◆ u_isupper()

U_CAPI UBool u_isupper ( UChar32 c)

Determines whether the specified code point has the general category "Lu" (uppercase letter).

Same as java.lang.Character.isUpperCase().

This misses some characters that are also uppercase but have a different general category value. In order to include those, use UCHAR_UPPERCASE.

In addition to being equivalent to a Java function, this also serves as a C/POSIX migration function. See the comments about C/POSIX character classification functions in the documentation at the top of this header file.

Parameters
cthe code point to be tested
Returns
true if the code point is an Lu uppercase letter
See also
UCHAR_UPPERCASE
u_islower
u_istitle
u_tolower
Stable
ICU 2.0

◆ u_isUUppercase()

U_CAPI UBool u_isUUppercase ( UChar32 c)

Check if a code point has the Uppercase Unicode property.

Same as u_hasBinaryProperty(c, UCHAR_UPPERCASE). This is different from u_isupper!

Parameters
cCode point to test
Returns
true if the code point has the Uppercase Unicode property, false otherwise
See also
UCHAR_UPPERCASE
u_isupper
u_hasBinaryProperty
Stable
ICU 2.1

◆ u_isUWhiteSpace()

U_CAPI UBool u_isUWhiteSpace ( UChar32 c)

Check if a code point has the White_Space Unicode property.

Same as u_hasBinaryProperty(c, UCHAR_WHITE_SPACE). This is different from both u_isspace and u_isWhitespace!

Note: There are several ICU whitespace functions; please see the uchar.h file documentation for a detailed comparison.

Parameters
cCode point to test
Returns
true if the code point has the White_Space Unicode property, false otherwise.
See also
UCHAR_WHITE_SPACE
u_isWhitespace
u_isspace
u_isJavaSpaceChar
u_hasBinaryProperty
Stable
ICU 2.1

◆ u_isWhitespace()

U_CAPI UBool u_isWhitespace ( UChar32 c)

Determines if the specified code point is a whitespace character according to Java/ICU.

A character is considered to be a Java whitespace character if and only if it satisfies one of the following criteria:

  • It is a Unicode Separator character (categories "Z" = "Zs" or "Zl" or "Zp"), but is not also a non-breaking space (U+00A0 NBSP or U+2007 Figure Space or U+202F Narrow NBSP).
  • It is U+0009 HORIZONTAL TABULATION.
  • It is U+000A LINE FEED.
  • It is U+000B VERTICAL TABULATION.
  • It is U+000C FORM FEED.
  • It is U+000D CARRIAGE RETURN.
  • It is U+001C FILE SEPARATOR.
  • It is U+001D GROUP SEPARATOR.
  • It is U+001E RECORD SEPARATOR.
  • It is U+001F UNIT SEPARATOR.

This API tries to sync with the semantics of Java's java.lang.Character.isWhitespace(), but it may not return the exact same results because of the Unicode version difference.

Note: Unicode 4.0.1 changed U+200B ZERO WIDTH SPACE from a Space Separator (Zs) to a Format Control (Cf). Since then, isWhitespace(0x200b) returns false. See http://www.unicode.org/versions/Unicode4.0.1/

Note: There are several ICU whitespace functions; please see the uchar.h file documentation for a detailed comparison.

Parameters
cthe code point to be tested
Returns
true if the code point is a whitespace character according to Java/ICU
See also
u_isspace
u_isJavaSpaceChar
u_isUWhiteSpace
Stable
ICU 2.0

◆ u_isxdigit()

U_CAPI UBool u_isxdigit ( UChar32 c)

Determines whether the specified code point is a hexadecimal digit.

This is equivalent to u_digit(c, 16)>=0. True for characters with general category "Nd" (decimal digit numbers) as well as Latin letters a-f and A-F in both ASCII and Fullwidth ASCII. (That is, for letters with code points 0041..0046, 0061..0066, FF21..FF26, FF41..FF46.)

In order to narrow the definition of hexadecimal digits to only ASCII characters, use (c<=0x7f && u_isxdigit(c)).

This is a C/POSIX migration function. See the comments about C/POSIX character classification functions in the documentation at the top of this header file.

Parameters
cthe code point to be tested
Returns
true if the code point is a hexadecimal digit
Stable
ICU 2.6

◆ u_stringHasBinaryProperty()

U_CAPI UBool u_stringHasBinaryProperty ( const UChar * s,
int32_t length,
UProperty which )

Returns true if the property is true for the string.

Same as u_hasBinaryProperty(single code point, which) if the string contains exactly one code point.

Most properties apply only to single code points. UTS #51 Unicode Emoji defines several properties of strings.

Parameters
sString to test.
lengthLength of the string, or negative if NUL-terminated.
whichUProperty selector constant, identifies which binary property to check. Must be UCHAR_BINARY_START<=which<UCHAR_BINARY_LIMIT.
Returns
true or false according to the binary Unicode property value for the string. Also false if 'which' is out of bounds or if the Unicode version does not have data for the property at all.
See also
UProperty
u_hasBinaryProperty
u_getBinaryPropertySet
u_getIntPropertyValue
u_getUnicodeVersion
Stable
ICU 70

◆ u_tolower()

U_CAPI UChar32 u_tolower ( UChar32 c)

The given character is mapped to its lowercase equivalent according to UnicodeData.txt; if the character has no lowercase equivalent, the character itself is returned.

Same as java.lang.Character.toLowerCase().

This function only returns the simple, single-code point case mapping. Full case mappings should be used whenever possible because they produce better results by working on whole strings. They take into account the string context and the language and can map to a result string with a different length as appropriate. Full case mappings are applied by the string case mapping functions, see ustring.h and the UnicodeString class. See also the User Guide chapter on C/POSIX migration: https://unicode-org.github.io/icu/userguide/icu/posix#case-mappings

Parameters
cthe code point to be mapped
Returns
the Simple_Lowercase_Mapping of the code point, if any; otherwise the code point itself.
Stable
ICU 2.0

◆ u_totitle()

U_CAPI UChar32 u_totitle ( UChar32 c)

The given character is mapped to its titlecase equivalent according to UnicodeData.txt; if none is defined, the character itself is returned.

Same as java.lang.Character.toTitleCase().

This function only returns the simple, single-code point case mapping. Full case mappings should be used whenever possible because they produce better results by working on whole strings. They take into account the string context and the language and can map to a result string with a different length as appropriate. Full case mappings are applied by the string case mapping functions, see ustring.h and the UnicodeString class. See also the User Guide chapter on C/POSIX migration: https://unicode-org.github.io/icu/userguide/icu/posix#case-mappings

Parameters
cthe code point to be mapped
Returns
the Simple_Titlecase_Mapping of the code point, if any; otherwise the code point itself.
Stable
ICU 2.0

◆ u_toupper()

U_CAPI UChar32 u_toupper ( UChar32 c)

The given character is mapped to its uppercase equivalent according to UnicodeData.txt; if the character has no uppercase equivalent, the character itself is returned.

Same as java.lang.Character.toUpperCase().

This function only returns the simple, single-code point case mapping. Full case mappings should be used whenever possible because they produce better results by working on whole strings. They take into account the string context and the language and can map to a result string with a different length as appropriate. Full case mappings are applied by the string case mapping functions, see ustring.h and the UnicodeString class. See also the User Guide chapter on C/POSIX migration: https://unicode-org.github.io/icu/userguide/icu/posix#case-mappings

Parameters
cthe code point to be mapped
Returns
the Simple_Uppercase_Mapping of the code point, if any; otherwise the code point itself.
Stable
ICU 2.0

◆ ublock_getCode()

U_CAPI UBlockCode ublock_getCode ( UChar32 c)

Returns the Unicode allocation block that contains the character.

Parameters
cthe code point to be tested
Returns
the block value (UBlockCode) for c
See also
UBlockCode
Stable
ICU 2.0