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name : uchar.h
 // © 2016 and later: Unicode, Inc. and others.
// License & terms of use: http://www.unicode.org/copyright.html
/*
**********************************************************************
*   Copyright (C) 1997-2016, International Business Machines
*   Corporation and others.  All Rights Reserved.
**********************************************************************
*
* File UCHAR.H
*
* Modification History:
*
*   Date        Name        Description
*   04/02/97    aliu        Creation.
*   03/29/99    helena      Updated for C APIs.
*   4/15/99     Madhu       Updated for C Implementation and Javadoc
*   5/20/99     Madhu       Added the function u_getVersion()
*   8/19/1999   srl         Upgraded scripts to Unicode 3.0
*   8/27/1999   schererm    UCharDirection constants: U_...
*   11/11/1999  weiv        added u_isalnum(), cleaned comments
*   01/11/2000  helena      Renamed u_getVersion to u_getUnicodeVersion().
******************************************************************************
*/

#ifndef UCHAR_H
#define UCHAR_H

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

#if !defined(USET_DEFINED) && !defined(U_IN_DOXYGEN)

#define USET_DEFINED

/**
 * USet is the C API type corresponding to C++ class UnicodeSet.
 * It is forward-declared here to avoid including unicode/uset.h file if related
 * APIs are not used.
 *
 * @see ucnv_getUnicodeSet
 * @stable ICU 2.4
 */
typedef struct USet USet;

#endif


U_CDECL_BEGIN

/*==========================================================================*/
/* Unicode version number                                                   */
/*==========================================================================*/
/**
 * 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 u_getUnicodeVersion
 * @stable ICU 2.0
 */
#define U_UNICODE_VERSION "12.1"

/**
 * \file
 * \brief 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 (http://icu-project.org/userguide/properties.html).
 *
 * Many properties are accessible via generic functions that take a UProperty selector.
 * - u_hasBinaryProperty() returns a binary value (TRUE/FALSE) per property and code point.
 * - u_getIntPropertyValue() returns an integer value per property and code point.
 *   For each supported enumerated or catalog property, there is
 *   an enum type for all of the property's values, and
 *   u_getIntPropertyValue() returns the numeric values of those constants.
 * - u_getBinaryPropertySet() returns a set for each ICU-supported binary property with
 *   all code points for which the property is true.
 * - u_getIntPropertyMap() returns a map for each
 *   ICU-supported enumerated/catalog/int-valued property which
 *   maps all Unicode code points to their values for that property.
 *
 * 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:
 * - alpha:     u_isUAlphabetic(c) or u_hasBinaryProperty(c, UCHAR_ALPHABETIC)
 * - lower:     u_isULowercase(c) or u_hasBinaryProperty(c, UCHAR_LOWERCASE)
 * - upper:     u_isUUppercase(c) or u_hasBinaryProperty(c, UCHAR_UPPERCASE)
 * - punct:     u_ispunct(c)
 * - digit:     u_isdigit(c) or u_charType(c)==U_DECIMAL_DIGIT_NUMBER
 * - xdigit:    u_isxdigit(c) or u_hasBinaryProperty(c, UCHAR_POSIX_XDIGIT)
 * - alnum:     u_hasBinaryProperty(c, UCHAR_POSIX_ALNUM)
 * - space:     u_isUWhiteSpace(c) or u_hasBinaryProperty(c, UCHAR_WHITE_SPACE)
 * - blank:     u_isblank(c) or u_hasBinaryProperty(c, UCHAR_POSIX_BLANK)
 * - cntrl:     u_charType(c)==U_CONTROL_CHAR
 * - graph:     u_hasBinaryProperty(c, UCHAR_POSIX_GRAPH)
 * - print:     u_hasBinaryProperty(c, UCHAR_POSIX_PRINT)
 *
 * 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.
 *
 * \htmlonly
 * The C/POSIX character classes are also available in UnicodeSet patterns,
 * using patterns like [:graph:] or \p{graph}.
 * \endhtmlonly
 *
 * Note: There are several ICU whitespace functions.
 * Comparison:
 * - u_isUWhiteSpace=UCHAR_WHITE_SPACE: Unicode White_Space property;
 *       most of general categories "Z" (separators) + most whitespace ISO controls
 *       (including no-break spaces, but excluding IS1..IS4)
 * - u_isWhitespace: Java isWhitespace; Z + whitespace ISO controls but excluding no-break spaces
 * - u_isJavaSpaceChar: Java isSpaceChar; just Z (including no-break spaces)
 * - u_isspace: Z + whitespace ISO controls (including no-break spaces)
 * - u_isblank: "horizontal spaces" = TAB + Zs
 */

/**
 * Constants.
 */

/** The lowest Unicode code point value. Code points are non-negative. @stable ICU 2.0 */
#define UCHAR_MIN_VALUE 0

/**
 * 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 UChar32
 * @stable ICU 2.0
 */
#define UCHAR_MAX_VALUE 0x10ffff

/**
 * Get a single-bit bit set (a flag) from a bit number 0..31.
 * @stable ICU 2.1
 */
#define U_MASK(x) ((uint32_t)1<<(x))

/**
 * 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 u_hasBinaryProperty
 * @see u_getIntPropertyValue
 * @see u_getUnicodeVersion
 * @stable ICU 2.1
 */
typedef enum UProperty {
    /*
     * Note: UProperty constants are parsed by preparseucd.py.
     * It matches lines like
     *     UCHAR_<Unicode property name>=<integer>,
     */

    /*  Note: Place UCHAR_ALPHABETIC before UCHAR_BINARY_START so that
    debuggers display UCHAR_ALPHABETIC as the symbolic name for 0,
    rather than UCHAR_BINARY_START.  Likewise for other *_START
    identifiers. */

    /** Binary property Alphabetic. Same as u_isUAlphabetic, different from u_isalpha.
        Lu+Ll+Lt+Lm+Lo+Nl+Other_Alphabetic @stable ICU 2.1 */
    UCHAR_ALPHABETIC=0,
    /** First constant for binary Unicode properties. @stable ICU 2.1 */
    UCHAR_BINARY_START=UCHAR_ALPHABETIC,
    /** Binary property ASCII_Hex_Digit. 0-9 A-F a-f @stable ICU 2.1 */
    UCHAR_ASCII_HEX_DIGIT=1,
    /** Binary property Bidi_Control.
        Format controls which have specific functions
        in the Bidi Algorithm. @stable ICU 2.1 */
    UCHAR_BIDI_CONTROL=2,
    /** 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_BIDI_MIRRORED=3,
    /** Binary property Dash. Variations of dashes. @stable ICU 2.1 */
    UCHAR_DASH=4,
    /** 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_DEFAULT_IGNORABLE_CODE_POINT=5,
    /** Binary property Deprecated (new in Unicode 3.2).
        The usage of deprecated characters is strongly discouraged. @stable ICU 2.1 */
    UCHAR_DEPRECATED=6,
    /** Binary property Diacritic. Characters that linguistically modify
        the meaning of another character to which they apply. @stable ICU 2.1 */
    UCHAR_DIACRITIC=7,
    /** Binary property Extender.
        Extend the value or shape of a preceding alphabetic character,
        e.g., length and iteration marks. @stable ICU 2.1 */
    UCHAR_EXTENDER=8,
    /** Binary property Full_Composition_Exclusion.
        CompositionExclusions.txt+Singleton Decompositions+
        Non-Starter Decompositions. @stable ICU 2.1 */
    UCHAR_FULL_COMPOSITION_EXCLUSION=9,
    /** 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_BASE=10,
    /** 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_EXTEND=11,
    /** Binary property Grapheme_Link (new in Unicode 3.2).
        For programmatic determination of grapheme cluster boundaries. @stable ICU 2.1 */
    UCHAR_GRAPHEME_LINK=12,
    /** Binary property Hex_Digit.
        Characters commonly used for hexadecimal numbers. @stable ICU 2.1 */
    UCHAR_HEX_DIGIT=13,
    /** Binary property Hyphen. Dashes used to mark connections
        between pieces of words, plus the Katakana middle dot. @stable ICU 2.1 */
    UCHAR_HYPHEN=14,
    /** 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_CONTINUE=15,
    /** Binary property ID_Start.
        Characters that can start an identifier.
        Lu+Ll+Lt+Lm+Lo+Nl @stable ICU 2.1 */
    UCHAR_ID_START=16,
    /** Binary property Ideographic.
        CJKV ideographs. @stable ICU 2.1 */
    UCHAR_IDEOGRAPHIC=17,
    /** Binary property IDS_Binary_Operator (new in Unicode 3.2).
        For programmatic determination of
        Ideographic Description Sequences. @stable ICU 2.1 */
    UCHAR_IDS_BINARY_OPERATOR=18,
    /** Binary property IDS_Trinary_Operator (new in Unicode 3.2).
        For programmatic determination of
        Ideographic Description Sequences. @stable ICU 2.1 */
    UCHAR_IDS_TRINARY_OPERATOR=19,
    /** Binary property Join_Control.
        Format controls for cursive joining and ligation. @stable ICU 2.1 */
    UCHAR_JOIN_CONTROL=20,
    /** 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_LOGICAL_ORDER_EXCEPTION=21,
    /** Binary property Lowercase. Same as u_isULowercase, different from u_islower.
        Ll+Other_Lowercase @stable ICU 2.1 */
    UCHAR_LOWERCASE=22,
    /** Binary property Math. Sm+Other_Math @stable ICU 2.1 */
    UCHAR_MATH=23,
    /** Binary property Noncharacter_Code_Point.
        Code points that are explicitly defined as illegal
        for the encoding of characters. @stable ICU 2.1 */
    UCHAR_NONCHARACTER_CODE_POINT=24,
    /** Binary property Quotation_Mark. @stable ICU 2.1 */
    UCHAR_QUOTATION_MARK=25,
    /** Binary property Radical (new in Unicode 3.2).
        For programmatic determination of
        Ideographic Description Sequences. @stable ICU 2.1 */
    UCHAR_RADICAL=26,
    /** 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_SOFT_DOTTED=27,
    /** Binary property Terminal_Punctuation.
        Punctuation characters that generally mark
        the end of textual units. @stable ICU 2.1 */
    UCHAR_TERMINAL_PUNCTUATION=28,
    /** Binary property Unified_Ideograph (new in Unicode 3.2).
        For programmatic determination of
        Ideographic Description Sequences. @stable ICU 2.1 */
    UCHAR_UNIFIED_IDEOGRAPH=29,
    /** Binary property Uppercase. Same as u_isUUppercase, different from u_isupper.
        Lu+Other_Uppercase @stable ICU 2.1 */
    UCHAR_UPPERCASE=30,
    /** 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_WHITE_SPACE=31,
    /** Binary property XID_Continue.
        ID_Continue modified to allow closure under
        normalization forms NFKC and NFKD. @stable ICU 2.1 */
    UCHAR_XID_CONTINUE=32,
    /** Binary property XID_Start. ID_Start modified to allow
        closure under normalization forms NFKC and NFKD. @stable ICU 2.1 */
    UCHAR_XID_START=33,
    /** 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_CASE_SENSITIVE=34,
    /** 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_S_TERM=35,
    /** 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_VARIATION_SELECTOR=36,
    /** 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_NFD_INERT=37,
    /** 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_NFKD_INERT=38,
    /** 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_NFC_INERT=39,
    /** 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_NFKC_INERT=40,
    /** 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_SEGMENT_STARTER=41,
    /** 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_SYNTAX=42,
    /** 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_PATTERN_WHITE_SPACE=43,
    /** 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_ALNUM=44,
    /** 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_BLANK=45,
    /** 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_GRAPH=46,
    /** 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_PRINT=47,
    /** 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_POSIX_XDIGIT=48,
    /** Binary property Cased. For Lowercase, Uppercase and Titlecase characters. @stable ICU 4.4 */
    UCHAR_CASED=49,
    /** Binary property Case_Ignorable. Used in context-sensitive case mappings. @stable ICU 4.4 */
    UCHAR_CASE_IGNORABLE=50,
    /** Binary property Changes_When_Lowercased. @stable ICU 4.4 */
    UCHAR_CHANGES_WHEN_LOWERCASED=51,
    /** Binary property Changes_When_Uppercased. @stable ICU 4.4 */
    UCHAR_CHANGES_WHEN_UPPERCASED=52,
    /** Binary property Changes_When_Titlecased. @stable ICU 4.4 */
    UCHAR_CHANGES_WHEN_TITLECASED=53,
    /** Binary property Changes_When_Casefolded. @stable ICU 4.4 */
    UCHAR_CHANGES_WHEN_CASEFOLDED=54,
    /** Binary property Changes_When_Casemapped. @stable ICU 4.4 */
    UCHAR_CHANGES_WHEN_CASEMAPPED=55,
    /** Binary property Changes_When_NFKC_Casefolded. @stable ICU 4.4 */
    UCHAR_CHANGES_WHEN_NFKC_CASEFOLDED=56,
    /**
     * Binary property Emoji.
     * See http://www.unicode.org/reports/tr51/#Emoji_Properties
     *
     * @stable ICU 57
     */
    UCHAR_EMOJI=57,
    /**
     * Binary property Emoji_Presentation.
     * See http://www.unicode.org/reports/tr51/#Emoji_Properties
     *
     * @stable ICU 57
     */
    UCHAR_EMOJI_PRESENTATION=58,
    /**
     * Binary property Emoji_Modifier.
     * See http://www.unicode.org/reports/tr51/#Emoji_Properties
     *
     * @stable ICU 57
     */
    UCHAR_EMOJI_MODIFIER=59,
    /**
     * Binary property Emoji_Modifier_Base.
     * See http://www.unicode.org/reports/tr51/#Emoji_Properties
     *
     * @stable ICU 57
     */
    UCHAR_EMOJI_MODIFIER_BASE=60,
    /**
     * Binary property Emoji_Component.
     * See http://www.unicode.org/reports/tr51/#Emoji_Properties
     *
     * @stable ICU 60
     */
    UCHAR_EMOJI_COMPONENT=61,
    /**
     * Binary property Regional_Indicator.
     * @stable ICU 60
     */
    UCHAR_REGIONAL_INDICATOR=62,
    /**
     * Binary property Prepended_Concatenation_Mark.
     * @stable ICU 60
     */
    UCHAR_PREPENDED_CONCATENATION_MARK=63,
    /**
     * Binary property Extended_Pictographic.
     * See http://www.unicode.org/reports/tr51/#Emoji_Properties
     *
     * @stable ICU 62
     */
    UCHAR_EXTENDED_PICTOGRAPHIC=64,
#ifndef U_HIDE_DEPRECATED_API
    /**
     * 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_BINARY_LIMIT,
#endif  // U_HIDE_DEPRECATED_API

    /** Enumerated property Bidi_Class.
        Same as u_charDirection, returns UCharDirection values. @stable ICU 2.2 */
    UCHAR_BIDI_CLASS=0x1000,
    /** First constant for enumerated/integer Unicode properties. @stable ICU 2.2 */
    UCHAR_INT_START=UCHAR_BIDI_CLASS,
    /** Enumerated property Block.
        Same as ublock_getCode, returns UBlockCode values. @stable ICU 2.2 */
    UCHAR_BLOCK=0x1001,
    /** Enumerated property Canonical_Combining_Class.
        Same as u_getCombiningClass, returns 8-bit numeric values. @stable ICU 2.2 */
    UCHAR_CANONICAL_COMBINING_CLASS=0x1002,
    /** Enumerated property Decomposition_Type.
        Returns UDecompositionType values. @stable ICU 2.2 */
    UCHAR_DECOMPOSITION_TYPE=0x1003,
    /** Enumerated property East_Asian_Width.
        See http://www.unicode.org/reports/tr11/
        Returns UEastAsianWidth values. @stable ICU 2.2 */
    UCHAR_EAST_ASIAN_WIDTH=0x1004,
    /** Enumerated property General_Category.
        Same as u_charType, returns UCharCategory values. @stable ICU 2.2 */
    UCHAR_GENERAL_CATEGORY=0x1005,
    /** Enumerated property Joining_Group.
        Returns UJoiningGroup values. @stable ICU 2.2 */
    UCHAR_JOINING_GROUP=0x1006,
    /** Enumerated property Joining_Type.
        Returns UJoiningType values. @stable ICU 2.2 */
    UCHAR_JOINING_TYPE=0x1007,
    /** Enumerated property Line_Break.
        Returns ULineBreak values. @stable ICU 2.2 */
    UCHAR_LINE_BREAK=0x1008,
    /** Enumerated property Numeric_Type.
        Returns UNumericType values. @stable ICU 2.2 */
    UCHAR_NUMERIC_TYPE=0x1009,
    /** Enumerated property Script.
        Same as uscript_getScript, returns UScriptCode values. @stable ICU 2.2 */
    UCHAR_SCRIPT=0x100A,
    /** Enumerated property Hangul_Syllable_Type, new in Unicode 4.
        Returns UHangulSyllableType values. @stable ICU 2.6 */
    UCHAR_HANGUL_SYLLABLE_TYPE=0x100B,
    /** Enumerated property NFD_Quick_Check.
        Returns UNormalizationCheckResult values. @stable ICU 3.0 */
    UCHAR_NFD_QUICK_CHECK=0x100C,
    /** Enumerated property NFKD_Quick_Check.
        Returns UNormalizationCheckResult values. @stable ICU 3.0 */
    UCHAR_NFKD_QUICK_CHECK=0x100D,
    /** Enumerated property NFC_Quick_Check.
        Returns UNormalizationCheckResult values. @stable ICU 3.0 */
    UCHAR_NFC_QUICK_CHECK=0x100E,
    /** Enumerated property NFKC_Quick_Check.
        Returns UNormalizationCheckResult values. @stable ICU 3.0 */
    UCHAR_NFKC_QUICK_CHECK=0x100F,
    /** 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_LEAD_CANONICAL_COMBINING_CLASS=0x1010,
    /** 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_TRAIL_CANONICAL_COMBINING_CLASS=0x1011,
    /** 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_GRAPHEME_CLUSTER_BREAK=0x1012,
    /** 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_SENTENCE_BREAK=0x1013,
    /** 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_WORD_BREAK=0x1014,
    /** 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_BIDI_PAIRED_BRACKET_TYPE=0x1015,
    /**
     * 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_POSITIONAL_CATEGORY=0x1016,
    /**
     * 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_INDIC_SYLLABIC_CATEGORY=0x1017,
    /**
     * 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_VERTICAL_ORIENTATION=0x1018,
#ifndef U_HIDE_DEPRECATED_API
    /**
     * 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_INT_LIMIT=0x1019,
#endif  // U_HIDE_DEPRECATED_API

    /** 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_GENERAL_CATEGORY_MASK=0x2000,
    /** First constant for bit-mask Unicode properties. @stable ICU 2.4 */
    UCHAR_MASK_START=UCHAR_GENERAL_CATEGORY_MASK,
#ifndef U_HIDE_DEPRECATED_API
    /**
     * 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_MASK_LIMIT=0x2001,
#endif  // U_HIDE_DEPRECATED_API

    /** Double property Numeric_Value.
        Corresponds to u_getNumericValue. @stable ICU 2.4 */
    UCHAR_NUMERIC_VALUE=0x3000,
    /** First constant for double Unicode properties. @stable ICU 2.4 */
    UCHAR_DOUBLE_START=UCHAR_NUMERIC_VALUE,
#ifndef U_HIDE_DEPRECATED_API
    /**
     * 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_DOUBLE_LIMIT=0x3001,
#endif  // U_HIDE_DEPRECATED_API

    /** String property Age.
        Corresponds to u_charAge. @stable ICU 2.4 */
    UCHAR_AGE=0x4000,
    /** First constant for string Unicode properties. @stable ICU 2.4 */
    UCHAR_STRING_START=UCHAR_AGE,
    /** String property Bidi_Mirroring_Glyph.
        Corresponds to u_charMirror. @stable ICU 2.4 */
    UCHAR_BIDI_MIRRORING_GLYPH=0x4001,
    /** String property Case_Folding.
        Corresponds to u_strFoldCase in ustring.h. @stable ICU 2.4 */
    UCHAR_CASE_FOLDING=0x4002,
#ifndef U_HIDE_DEPRECATED_API
    /** Deprecated string property ISO_Comment.
        Corresponds to u_getISOComment. @deprecated ICU 49 */
    UCHAR_ISO_COMMENT=0x4003,
#endif  /* U_HIDE_DEPRECATED_API */
    /** String property Lowercase_Mapping.
        Corresponds to u_strToLower in ustring.h. @stable ICU 2.4 */
    UCHAR_LOWERCASE_MAPPING=0x4004,
    /** String property Name.
        Corresponds to u_charName. @stable ICU 2.4 */
    UCHAR_NAME=0x4005,
    /** String property Simple_Case_Folding.
        Corresponds to u_foldCase. @stable ICU 2.4 */
    UCHAR_SIMPLE_CASE_FOLDING=0x4006,
    /** String property Simple_Lowercase_Mapping.
        Corresponds to u_tolower. @stable ICU 2.4 */
    UCHAR_SIMPLE_LOWERCASE_MAPPING=0x4007,
    /** String property Simple_Titlecase_Mapping.
        Corresponds to u_totitle. @stable ICU 2.4 */
    UCHAR_SIMPLE_TITLECASE_MAPPING=0x4008,
    /** String property Simple_Uppercase_Mapping.
        Corresponds to u_toupper. @stable ICU 2.4 */
    UCHAR_SIMPLE_UPPERCASE_MAPPING=0x4009,
    /** String property Titlecase_Mapping.
        Corresponds to u_strToTitle in ustring.h. @stable ICU 2.4 */
    UCHAR_TITLECASE_MAPPING=0x400A,
#ifndef U_HIDE_DEPRECATED_API
    /** 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_UNICODE_1_NAME=0x400B,
#endif  /* U_HIDE_DEPRECATED_API */
    /** String property Uppercase_Mapping.
        Corresponds to u_strToUpper in ustring.h. @stable ICU 2.4 */
    UCHAR_UPPERCASE_MAPPING=0x400C,
    /** String property Bidi_Paired_Bracket (new in Unicode 6.3).
        Corresponds to u_getBidiPairedBracket. @stable ICU 52 */
    UCHAR_BIDI_PAIRED_BRACKET=0x400D,
#ifndef U_HIDE_DEPRECATED_API
    /**
     * 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_STRING_LIMIT=0x400E,
#endif  // U_HIDE_DEPRECATED_API

    /** 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_SCRIPT_EXTENSIONS=0x7000,
    /** First constant for Unicode properties with unusual value types. @stable ICU 4.6 */
    UCHAR_OTHER_PROPERTY_START=UCHAR_SCRIPT_EXTENSIONS,
#ifndef U_HIDE_DEPRECATED_API
    /**
     * 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_OTHER_PROPERTY_LIMIT=0x7001,
#endif  // U_HIDE_DEPRECATED_API

    /** Represents a nonexistent or invalid property or property value. @stable ICU 2.4 */
    UCHAR_INVALID_CODE = -1
} UProperty;

/**
 * Data for enumerated Unicode general category types.
 * See http://www.unicode.org/Public/UNIDATA/UnicodeData.html .
 * @stable ICU 2.0
 */
typedef enum UCharCategory
{
    /*
     * Note: UCharCategory constants and their API comments are parsed by preparseucd.py.
     * It matches pairs of lines like
     *     / ** <Unicode 2-letter General_Category value> comment... * /
     *     U_<[A-Z_]+> = <integer>,
     */

    /** Non-category for unassigned and non-character code points. @stable ICU 2.0 */
    U_UNASSIGNED              = 0,
    /** Cn "Other, Not Assigned (no characters in [UnicodeData.txt] have this property)" (same as U_UNASSIGNED!) @stable ICU 2.0 */
    U_GENERAL_OTHER_TYPES     = 0,
    /** Lu @stable ICU 2.0 */
    U_UPPERCASE_LETTER        = 1,
    /** Ll @stable ICU 2.0 */
    U_LOWERCASE_LETTER        = 2,
    /** Lt @stable ICU 2.0 */
    U_TITLECASE_LETTER        = 3,
    /** Lm @stable ICU 2.0 */
    U_MODIFIER_LETTER         = 4,
    /** Lo @stable ICU 2.0 */
    U_OTHER_LETTER            = 5,
    /** Mn @stable ICU 2.0 */
    U_NON_SPACING_MARK        = 6,
    /** Me @stable ICU 2.0 */
    U_ENCLOSING_MARK          = 7,
    /** Mc @stable ICU 2.0 */
    U_COMBINING_SPACING_MARK  = 8,
    /** Nd @stable ICU 2.0 */
    U_DECIMAL_DIGIT_NUMBER    = 9,
    /** Nl @stable ICU 2.0 */
    U_LETTER_NUMBER           = 10,
    /** No @stable ICU 2.0 */
    U_OTHER_NUMBER            = 11,
    /** Zs @stable ICU 2.0 */
    U_SPACE_SEPARATOR         = 12,
    /** Zl @stable ICU 2.0 */
    U_LINE_SEPARATOR          = 13,
    /** Zp @stable ICU 2.0 */
    U_PARAGRAPH_SEPARATOR     = 14,
    /** Cc @stable ICU 2.0 */
    U_CONTROL_CHAR            = 15,
    /** Cf @stable ICU 2.0 */
    U_FORMAT_CHAR             = 16,
    /** Co @stable ICU 2.0 */
    U_PRIVATE_USE_CHAR        = 17,
    /** Cs @stable ICU 2.0 */
    U_SURROGATE               = 18,
    /** Pd @stable ICU 2.0 */
    U_DASH_PUNCTUATION        = 19,
    /** Ps @stable ICU 2.0 */
    U_START_PUNCTUATION       = 20,
    /** Pe @stable ICU 2.0 */
    U_END_PUNCTUATION         = 21,
    /** Pc @stable ICU 2.0 */
    U_CONNECTOR_PUNCTUATION   = 22,
    /** Po @stable ICU 2.0 */
    U_OTHER_PUNCTUATION       = 23,
    /** Sm @stable ICU 2.0 */
    U_MATH_SYMBOL             = 24,
    /** Sc @stable ICU 2.0 */
    U_CURRENCY_SYMBOL         = 25,
    /** Sk @stable ICU 2.0 */
    U_MODIFIER_SYMBOL         = 26,
    /** So @stable ICU 2.0 */
    U_OTHER_SYMBOL            = 27,
    /** Pi @stable ICU 2.0 */
    U_INITIAL_PUNCTUATION     = 28,
    /** Pf @stable ICU 2.0 */
    U_FINAL_PUNCTUATION       = 29,
    /**
     * 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
     */
    U_CHAR_CATEGORY_COUNT
} UCharCategory;

/**
 * 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 u_charType
 * @see U_GET_GC_MASK
 * @see UCharCategory
 * @stable ICU 2.1
 */
#define U_GC_CN_MASK    U_MASK(U_GENERAL_OTHER_TYPES)

/** Mask constant for a UCharCategory. @stable ICU 2.1 */
#define U_GC_LU_MASK    U_MASK(U_UPPERCASE_LETTER)
/** Mask constant for a UCharCategory. @stable ICU 2.1 */
#define U_GC_LL_MASK    U_MASK(U_LOWERCASE_LETTER)
/** Mask constant for a UCharCategory. @stable ICU 2.1 */
#define U_GC_LT_MASK    U_MASK(U_TITLECASE_LETTER)
/** Mask constant for a UCharCategory. @stable ICU 2.1 */
#define U_GC_LM_MASK    U_MASK(U_MODIFIER_LETTER)
/** Mask constant for a UCharCategory. @stable ICU 2.1 */
#define U_GC_LO_MASK    U_MASK(U_OTHER_LETTER)

/** Mask constant for a UCharCategory. @stable ICU 2.1 */
#define U_GC_MN_MASK    U_MASK(U_NON_SPACING_MARK)
/** Mask constant for a UCharCategory. @stable ICU 2.1 */
#define U_GC_ME_MASK    U_MASK(U_ENCLOSING_MARK)
/** Mask constant for a UCharCategory. @stable ICU 2.1 */
#define U_GC_MC_MASK    U_MASK(U_COMBINING_SPACING_MARK)

/** Mask constant for a UCharCategory. @stable ICU 2.1 */
#define U_GC_ND_MASK    U_MASK(U_DECIMAL_DIGIT_NUMBER)
/** Mask constant for a UCharCategory. @stable ICU 2.1 */
#define U_GC_NL_MASK    U_MASK(U_LETTER_NUMBER)
/** Mask constant for a UCharCategory. @stable ICU 2.1 */
#define U_GC_NO_MASK    U_MASK(U_OTHER_NUMBER)

/** Mask constant for a UCharCategory. @stable ICU 2.1 */
#define U_GC_ZS_MASK    U_MASK(U_SPACE_SEPARATOR)
/** Mask constant for a UCharCategory. @stable ICU 2.1 */
#define U_GC_ZL_MASK    U_MASK(U_LINE_SEPARATOR)
/** Mask constant for a UCharCategory. @stable ICU 2.1 */
#define U_GC_ZP_MASK    U_MASK(U_PARAGRAPH_SEPARATOR)

/** Mask constant for a UCharCategory. @stable ICU 2.1 */
#define U_GC_CC_MASK    U_MASK(U_CONTROL_CHAR)
/** Mask constant for a UCharCategory. @stable ICU 2.1 */
#define U_GC_CF_MASK    U_MASK(U_FORMAT_CHAR)
/** Mask constant for a UCharCategory. @stable ICU 2.1 */
#define U_GC_CO_MASK    U_MASK(U_PRIVATE_USE_CHAR)
/** Mask constant for a UCharCategory. @stable ICU 2.1 */
#define U_GC_CS_MASK    U_MASK(U_SURROGATE)

/** Mask constant for a UCharCategory. @stable ICU 2.1 */
#define U_GC_PD_MASK    U_MASK(U_DASH_PUNCTUATION)
/** Mask constant for a UCharCategory. @stable ICU 2.1 */
#define U_GC_PS_MASK    U_MASK(U_START_PUNCTUATION)
/** Mask constant for a UCharCategory. @stable ICU 2.1 */
#define U_GC_PE_MASK    U_MASK(U_END_PUNCTUATION)
/** Mask constant for a UCharCategory. @stable ICU 2.1 */
#define U_GC_PC_MASK    U_MASK(U_CONNECTOR_PUNCTUATION)
/** Mask constant for a UCharCategory. @stable ICU 2.1 */
#define U_GC_PO_MASK    U_MASK(U_OTHER_PUNCTUATION)

/** Mask constant for a UCharCategory. @stable ICU 2.1 */
#define U_GC_SM_MASK    U_MASK(U_MATH_SYMBOL)
/** Mask constant for a UCharCategory. @stable ICU 2.1 */
#define U_GC_SC_MASK    U_MASK(U_CURRENCY_SYMBOL)
/** Mask constant for a UCharCategory. @stable ICU 2.1 */
#define U_GC_SK_MASK    U_MASK(U_MODIFIER_SYMBOL)
/** Mask constant for a UCharCategory. @stable ICU 2.1 */
#define U_GC_SO_MASK    U_MASK(U_OTHER_SYMBOL)

/** Mask constant for a UCharCategory. @stable ICU 2.1 */
#define U_GC_PI_MASK    U_MASK(U_INITIAL_PUNCTUATION)
/** Mask constant for a UCharCategory. @stable ICU 2.1 */
#define U_GC_PF_MASK    U_MASK(U_FINAL_PUNCTUATION)


/** Mask constant for multiple UCharCategory bits (L Letters). @stable ICU 2.1 */
#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 (LC Cased Letters). @stable ICU 2.1 */
#define U_GC_LC_MASK \
            (U_GC_LU_MASK|U_GC_LL_MASK|U_GC_LT_MASK)

/** Mask constant for multiple UCharCategory bits (M Marks). @stable ICU 2.1 */
#define U_GC_M_MASK (U_GC_MN_MASK|U_GC_ME_MASK|U_GC_MC_MASK)

/** Mask constant for multiple UCharCategory bits (N Numbers). @stable ICU 2.1 */
#define U_GC_N_MASK (U_GC_ND_MASK|U_GC_NL_MASK|U_GC_NO_MASK)

/** Mask constant for multiple UCharCategory bits (Z Separators). @stable ICU 2.1 */
#define U_GC_Z_MASK (U_GC_ZS_MASK|U_GC_ZL_MASK|U_GC_ZP_MASK)

/** Mask constant for multiple UCharCategory bits (C Others). @stable ICU 2.1 */
#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 (P Punctuation). @stable ICU 2.1 */
#define U_GC_P_MASK \
            (U_GC_PD_MASK|U_GC_PS_MASK|U_GC_PE_MASK|U_GC_PC_MASK|U_GC_PO_MASK| \
             U_GC_PI_MASK|U_GC_PF_MASK)

/** Mask constant for multiple UCharCategory bits (S Symbols). @stable ICU 2.1 */
#define U_GC_S_MASK (U_GC_SM_MASK|U_GC_SC_MASK|U_GC_SK_MASK|U_GC_SO_MASK)

/**
 * This specifies the language directional property of a character set.
 * @stable ICU 2.0
 */
typedef enum UCharDirection {
    /*
     * Note: UCharDirection constants and their API comments are parsed by preparseucd.py.
     * It matches pairs of lines like
     *     / ** <Unicode 1..3-letter Bidi_Class value> comment... * /
     *     U_<[A-Z_]+> = <integer>,
     */

    /** L @stable ICU 2.0 */
    U_LEFT_TO_RIGHT               = 0,
    /** R @stable ICU 2.0 */
    U_RIGHT_TO_LEFT               = 1,
    /** EN @stable ICU 2.0 */
    U_EUROPEAN_NUMBER             = 2,
    /** ES @stable ICU 2.0 */
    U_EUROPEAN_NUMBER_SEPARATOR   = 3,
    /** ET @stable ICU 2.0 */
    U_EUROPEAN_NUMBER_TERMINATOR  = 4,
    /** AN @stable ICU 2.0 */
    U_ARABIC_NUMBER               = 5,
    /** CS @stable ICU 2.0 */
    U_COMMON_NUMBER_SEPARATOR     = 6,
    /** B @stable ICU 2.0 */
    U_BLOCK_SEPARATOR             = 7,
    /** S @stable ICU 2.0 */
    U_SEGMENT_SEPARATOR           = 8,
    /** WS @stable ICU 2.0 */
    U_WHITE_SPACE_NEUTRAL         = 9,
    /** ON @stable ICU 2.0 */
    U_OTHER_NEUTRAL               = 10,
    /** LRE @stable ICU 2.0 */
    U_LEFT_TO_RIGHT_EMBEDDING     = 11,
    /** LRO @stable ICU 2.0 */
    U_LEFT_TO_RIGHT_OVERRIDE      = 12,
    /** AL @stable ICU 2.0 */
    U_RIGHT_TO_LEFT_ARABIC        = 13,
    /** RLE @stable ICU 2.0 */
    U_RIGHT_TO_LEFT_EMBEDDING     = 14,
    /** RLO @stable ICU 2.0 */
    U_RIGHT_TO_LEFT_OVERRIDE      = 15,
    /** PDF @stable ICU 2.0 */
    U_POP_DIRECTIONAL_FORMAT      = 16,
    /** NSM @stable ICU 2.0 */
    U_DIR_NON_SPACING_MARK        = 17,
    /** BN @stable ICU 2.0 */
    U_BOUNDARY_NEUTRAL            = 18,
    /** FSI @stable ICU 52 */
    U_FIRST_STRONG_ISOLATE        = 19,
    /** LRI @stable ICU 52 */
    U_LEFT_TO_RIGHT_ISOLATE       = 20,
    /** RLI @stable ICU 52 */
    U_RIGHT_TO_LEFT_ISOLATE       = 21,
    /** PDI @stable ICU 52 */
    U_POP_DIRECTIONAL_ISOLATE     = 22,
#ifndef U_HIDE_DEPRECATED_API
    /**
     * 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.
     */
    U_CHAR_DIRECTION_COUNT
#endif  // U_HIDE_DEPRECATED_API
} UCharDirection;

/**
 * Bidi Paired Bracket Type constants.
 *
 * @see UCHAR_BIDI_PAIRED_BRACKET_TYPE
 * @stable ICU 52
 */
typedef enum UBidiPairedBracketType {
    /*
     * Note: UBidiPairedBracketType constants are parsed by preparseucd.py.
     * It matches lines like
     *     U_BPT_<Unicode Bidi_Paired_Bracket_Type value name>
     */

    /** Not a paired bracket. @stable ICU 52 */
    U_BPT_NONE,
    /** Open paired bracket. @stable ICU 52 */
    U_BPT_OPEN,
    /** Close paired bracket. @stable ICU 52 */
    U_BPT_CLOSE,
#ifndef U_HIDE_DEPRECATED_API
    /**
     * 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.
     */
    U_BPT_COUNT /* 3 */
#endif  // U_HIDE_DEPRECATED_API
} UBidiPairedBracketType;

/**
 * Constants for Unicode blocks, see the Unicode Data file Blocks.txt
 * @stable ICU 2.0
 */
enum UBlockCode {
    /*
     * Note: UBlockCode constants are parsed by preparseucd.py.
     * It matches lines like
     *     UBLOCK_<Unicode Block value name> = <integer>,
     */

    /** New No_Block value in Unicode 4. @stable ICU 2.6 */
    UBLOCK_NO_BLOCK = 0, /*[none]*/ /* Special range indicating No_Block */

    /** @stable ICU 2.0 */
    UBLOCK_BASIC_LATIN = 1, /*[0000]*/

    /** @stable ICU 2.0 */
    UBLOCK_LATIN_1_SUPPLEMENT=2, /*[0080]*/

    /** @stable ICU 2.0 */
    UBLOCK_LATIN_EXTENDED_A =3, /*[0100]*/

    /** @stable ICU 2.0 */
    UBLOCK_LATIN_EXTENDED_B =4, /*[0180]*/

    /** @stable ICU 2.0 */
    UBLOCK_IPA_EXTENSIONS =5, /*[0250]*/

    /** @stable ICU 2.0 */
    UBLOCK_SPACING_MODIFIER_LETTERS =6, /*[02B0]*/

    /** @stable ICU 2.0 */
    UBLOCK_COMBINING_DIACRITICAL_MARKS =7, /*[0300]*/

    /**
     * Unicode 3.2 renames this block to "Greek and Coptic".
     * @stable ICU 2.0
     */
    UBLOCK_GREEK =8, /*[0370]*/

    /** @stable ICU 2.0 */
    UBLOCK_CYRILLIC =9, /*[0400]*/

    /** @stable ICU 2.0 */
    UBLOCK_ARMENIAN =10, /*[0530]*/

    /** @stable ICU 2.0 */
    UBLOCK_HEBREW =11, /*[0590]*/

    /** @stable ICU 2.0 */
    UBLOCK_ARABIC =12, /*[0600]*/

    /** @stable ICU 2.0 */
    UBLOCK_SYRIAC =13, /*[0700]*/

    /** @stable ICU 2.0 */
    UBLOCK_THAANA =14, /*[0780]*/

    /** @stable ICU 2.0 */
    UBLOCK_DEVANAGARI =15, /*[0900]*/

    /** @stable ICU 2.0 */
    UBLOCK_BENGALI =16, /*[0980]*/

    /** @stable ICU 2.0 */
    UBLOCK_GURMUKHI =17, /*[0A00]*/

    /** @stable ICU 2.0 */
    UBLOCK_GUJARATI =18, /*[0A80]*/

    /** @stable ICU 2.0 */
    UBLOCK_ORIYA =19, /*[0B00]*/

    /** @stable ICU 2.0 */
    UBLOCK_TAMIL =20, /*[0B80]*/

    /** @stable ICU 2.0 */
    UBLOCK_TELUGU =21, /*[0C00]*/

    /** @stable ICU 2.0 */
    UBLOCK_KANNADA =22, /*[0C80]*/

    /** @stable ICU 2.0 */
    UBLOCK_MALAYALAM =23, /*[0D00]*/

    /** @stable ICU 2.0 */
    UBLOCK_SINHALA =24, /*[0D80]*/

    /** @stable ICU 2.0 */
    UBLOCK_THAI =25, /*[0E00]*/

    /** @stable ICU 2.0 */
    UBLOCK_LAO =26, /*[0E80]*/

    /** @stable ICU 2.0 */
    UBLOCK_TIBETAN =27, /*[0F00]*/

    /** @stable ICU 2.0 */
    UBLOCK_MYANMAR =28, /*[1000]*/

    /** @stable ICU 2.0 */
    UBLOCK_GEORGIAN =29, /*[10A0]*/

    /** @stable ICU 2.0 */
    UBLOCK_HANGUL_JAMO =30, /*[1100]*/

    /** @stable ICU 2.0 */
    UBLOCK_ETHIOPIC =31, /*[1200]*/

    /** @stable ICU 2.0 */
    UBLOCK_CHEROKEE =32, /*[13A0]*/

    /** @stable ICU 2.0 */
    UBLOCK_UNIFIED_CANADIAN_ABORIGINAL_SYLLABICS =33, /*[1400]*/

    /** @stable ICU 2.0 */
    UBLOCK_OGHAM =34, /*[1680]*/

    /** @stable ICU 2.0 */
    UBLOCK_RUNIC =35, /*[16A0]*/

    /** @stable ICU 2.0 */
    UBLOCK_KHMER =36, /*[1780]*/

    /** @stable ICU 2.0 */
    UBLOCK_MONGOLIAN =37, /*[1800]*/

    /** @stable ICU 2.0 */
    UBLOCK_LATIN_EXTENDED_ADDITIONAL =38, /*[1E00]*/

    /** @stable ICU 2.0 */
    UBLOCK_GREEK_EXTENDED =39, /*[1F00]*/

    /** @stable ICU 2.0 */
    UBLOCK_GENERAL_PUNCTUATION =40, /*[2000]*/

    /** @stable ICU 2.0 */
    UBLOCK_SUPERSCRIPTS_AND_SUBSCRIPTS =41, /*[2070]*/

    /** @stable ICU 2.0 */
    UBLOCK_CURRENCY_SYMBOLS =42, /*[20A0]*/

    /**
     * Unicode 3.2 renames this block to "Combining Diacritical Marks for Symbols".
     * @stable ICU 2.0
     */
    UBLOCK_COMBINING_MARKS_FOR_SYMBOLS =43, /*[20D0]*/

    /** @stable ICU 2.0 */
    UBLOCK_LETTERLIKE_SYMBOLS =44, /*[2100]*/

    /** @stable ICU 2.0 */
    UBLOCK_NUMBER_FORMS =45, /*[2150]*/

    /** @stable ICU 2.0 */
    UBLOCK_ARROWS =46, /*[2190]*/

    /** @stable ICU 2.0 */
    UBLOCK_MATHEMATICAL_OPERATORS =47, /*[2200]*/

    /** @stable ICU 2.0 */
    UBLOCK_MISCELLANEOUS_TECHNICAL =48, /*[2300]*/

    /** @stable ICU 2.0 */
    UBLOCK_CONTROL_PICTURES =49, /*[2400]*/

    /** @stable ICU 2.0 */
    UBLOCK_OPTICAL_CHARACTER_RECOGNITION =50, /*[2440]*/

    /** @stable ICU 2.0 */
    UBLOCK_ENCLOSED_ALPHANUMERICS =51, /*[2460]*/

    /** @stable ICU 2.0 */
    UBLOCK_BOX_DRAWING =52, /*[2500]*/

    /** @stable ICU 2.0 */
    UBLOCK_BLOCK_ELEMENTS =53, /*[2580]*/

    /** @stable ICU 2.0 */
    UBLOCK_GEOMETRIC_SHAPES =54, /*[25A0]*/

    /** @stable ICU 2.0 */
    UBLOCK_MISCELLANEOUS_SYMBOLS =55, /*[2600]*/

    /** @stable ICU 2.0 */
    UBLOCK_DINGBATS =56, /*[2700]*/

    /** @stable ICU 2.0 */
    UBLOCK_BRAILLE_PATTERNS =57, /*[2800]*/

    /** @stable ICU 2.0 */
    UBLOCK_CJK_RADICALS_SUPPLEMENT =58, /*[2E80]*/

    /** @stable ICU 2.0 */
    UBLOCK_KANGXI_RADICALS =59, /*[2F00]*/

    /** @stable ICU 2.0 */
    UBLOCK_IDEOGRAPHIC_DESCRIPTION_CHARACTERS =60, /*[2FF0]*/

    /** @stable ICU 2.0 */
    UBLOCK_CJK_SYMBOLS_AND_PUNCTUATION =61, /*[3000]*/

    /** @stable ICU 2.0 */
    UBLOCK_HIRAGANA =62, /*[3040]*/

    /** @stable ICU 2.0 */
    UBLOCK_KATAKANA =63, /*[30A0]*/

    /** @stable ICU 2.0 */
    UBLOCK_BOPOMOFO =64, /*[3100]*/

    /** @stable ICU 2.0 */
    UBLOCK_HANGUL_COMPATIBILITY_JAMO =65, /*[3130]*/

    /** @stable ICU 2.0 */
    UBLOCK_KANBUN =66, /*[3190]*/

    /** @stable ICU 2.0 */
    UBLOCK_BOPOMOFO_EXTENDED =67, /*[31A0]*/

    /** @stable ICU 2.0 */
    UBLOCK_ENCLOSED_CJK_LETTERS_AND_MONTHS =68, /*[3200]*/

    /** @stable ICU 2.0 */
    UBLOCK_CJK_COMPATIBILITY =69, /*[3300]*/

    /** @stable ICU 2.0 */
    UBLOCK_CJK_UNIFIED_IDEOGRAPHS_EXTENSION_A =70, /*[3400]*/

    /** @stable ICU 2.0 */
    UBLOCK_CJK_UNIFIED_IDEOGRAPHS =71, /*[4E00]*/

    /** @stable ICU 2.0 */
    UBLOCK_YI_SYLLABLES =72, /*[A000]*/

    /** @stable ICU 2.0 */
    UBLOCK_YI_RADICALS =73, /*[A490]*/

    /** @stable ICU 2.0 */
    UBLOCK_HANGUL_SYLLABLES =74, /*[AC00]*/

    /** @stable ICU 2.0 */
    UBLOCK_HIGH_SURROGATES =75, /*[D800]*/

    /** @stable ICU 2.0 */
    UBLOCK_HIGH_PRIVATE_USE_SURROGATES =76, /*[DB80]*/

    /** @stable ICU 2.0 */
    UBLOCK_LOW_SURROGATES =77, /*[DC00]*/

    /**
     * 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_AREA =78, /*[E000]*/
    /**
     * 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_PRIVATE_USE = UBLOCK_PRIVATE_USE_AREA,

    /** @stable ICU 2.0 */
    UBLOCK_CJK_COMPATIBILITY_IDEOGRAPHS =79, /*[F900]*/

    /** @stable ICU 2.0 */
    UBLOCK_ALPHABETIC_PRESENTATION_FORMS =80, /*[FB00]*/

    /** @stable ICU 2.0 */
    UBLOCK_ARABIC_PRESENTATION_FORMS_A =81, /*[FB50]*/

    /** @stable ICU 2.0 */
    UBLOCK_COMBINING_HALF_MARKS =82, /*[FE20]*/

    /** @stable ICU 2.0 */
    UBLOCK_CJK_COMPATIBILITY_FORMS =83, /*[FE30]*/

    /** @stable ICU 2.0 */
    UBLOCK_SMALL_FORM_VARIANTS =84, /*[FE50]*/

    /** @stable ICU 2.0 */
    UBLOCK_ARABIC_PRESENTATION_FORMS_B =85, /*[FE70]*/

    /** @stable ICU 2.0 */
    UBLOCK_SPECIALS =86, /*[FFF0]*/

    /** @stable ICU 2.0 */
    UBLOCK_HALFWIDTH_AND_FULLWIDTH_FORMS =87, /*[FF00]*/

    /* New blocks in Unicode 3.1 */

    /** @stable ICU 2.0 */
    UBLOCK_OLD_ITALIC = 88, /*[10300]*/
    /** @stable ICU 2.0 */
    UBLOCK_GOTHIC = 89, /*[10330]*/
    /** @stable ICU 2.0 */
    UBLOCK_DESERET = 90, /*[10400]*/
    /** @stable ICU 2.0 */
    UBLOCK_BYZANTINE_MUSICAL_SYMBOLS = 91, /*[1D000]*/
    /** @stable ICU 2.0 */
    UBLOCK_MUSICAL_SYMBOLS = 92, /*[1D100]*/
    /** @stable ICU 2.0 */
    UBLOCK_MATHEMATICAL_ALPHANUMERIC_SYMBOLS = 93, /*[1D400]*/
    /** @stable ICU 2.0 */
    UBLOCK_CJK_UNIFIED_IDEOGRAPHS_EXTENSION_B  = 94, /*[20000]*/
    /** @stable ICU 2.0 */
    UBLOCK_CJK_COMPATIBILITY_IDEOGRAPHS_SUPPLEMENT = 95, /*[2F800]*/
    /** @stable ICU 2.0 */
    UBLOCK_TAGS = 96, /*[E0000]*/

    /* New blocks in Unicode 3.2 */

    /** @stable ICU 3.0  */
    UBLOCK_CYRILLIC_SUPPLEMENT = 97, /*[0500]*/
    /**
     * Unicode 4.0.1 renames the "Cyrillic Supplementary" block to "Cyrillic Supplement".
     * @stable ICU 2.2
     */
    UBLOCK_CYRILLIC_SUPPLEMENTARY = UBLOCK_CYRILLIC_SUPPLEMENT,
    /** @stable ICU 2.2 */
    UBLOCK_TAGALOG = 98, /*[1700]*/
    /** @stable ICU 2.2 */
    UBLOCK_HANUNOO = 99, /*[1720]*/
    /** @stable ICU 2.2 */
    UBLOCK_BUHID = 100, /*[1740]*/
    /** @stable ICU 2.2 */
    UBLOCK_TAGBANWA = 101, /*[1760]*/
    /** @stable ICU 2.2 */
    UBLOCK_MISCELLANEOUS_MATHEMATICAL_SYMBOLS_A = 102, /*[27C0]*/
    /** @stable ICU 2.2 */
    UBLOCK_SUPPLEMENTAL_ARROWS_A = 103, /*[27F0]*/
    /** @stable ICU 2.2 */
    UBLOCK_SUPPLEMENTAL_ARROWS_B = 104, /*[2900]*/
    /** @stable ICU 2.2 */
    UBLOCK_MISCELLANEOUS_MATHEMATICAL_SYMBOLS_B = 105, /*[2980]*/
    /** @stable ICU 2.2 */
    UBLOCK_SUPPLEMENTAL_MATHEMATICAL_OPERATORS = 106, /*[2A00]*/
    /** @stable ICU 2.2 */
    UBLOCK_KATAKANA_PHONETIC_EXTENSIONS = 107, /*[31F0]*/
    /** @stable ICU 2.2 */
    UBLOCK_VARIATION_SELECTORS = 108, /*[FE00]*/
    /** @stable ICU 2.2 */
    UBLOCK_SUPPLEMENTARY_PRIVATE_USE_AREA_A = 109, /*[F0000]*/
    /** @stable ICU 2.2 */
    UBLOCK_SUPPLEMENTARY_PRIVATE_USE_AREA_B = 110, /*[100000]*/

    /* New blocks in Unicode 4 */

    /** @stable ICU 2.6 */
    UBLOCK_LIMBU = 111, /*[1900]*/
    /** @stable ICU 2.6 */
    UBLOCK_TAI_LE = 112, /*[1950]*/
    /** @stable ICU 2.6 */
    UBLOCK_KHMER_SYMBOLS = 113, /*[19E0]*/
    /** @stable ICU 2.6 */
    UBLOCK_PHONETIC_EXTENSIONS = 114, /*[1D00]*/
    /** @stable ICU 2.6 */
    UBLOCK_MISCELLANEOUS_SYMBOLS_AND_ARROWS = 115, /*[2B00]*/
    /** @stable ICU 2.6 */
    UBLOCK_YIJING_HEXAGRAM_SYMBOLS = 116, /*[4DC0]*/
    /** @stable ICU 2.6 */
    UBLOCK_LINEAR_B_SYLLABARY = 117, /*[10000]*/
    /** @stable ICU 2.6 */
    UBLOCK_LINEAR_B_IDEOGRAMS = 118, /*[10080]*/
    /** @stable ICU 2.6 */
    UBLOCK_AEGEAN_NUMBERS = 119, /*[10100]*/
    /** @stable ICU 2.6 */
    UBLOCK_UGARITIC = 120, /*[10380]*/
    /** @stable ICU 2.6 */
    UBLOCK_SHAVIAN = 121, /*[10450]*/
    /** @stable ICU 2.6 */
    UBLOCK_OSMANYA = 122, /*[10480]*/
    /** @stable ICU 2.6 */
    UBLOCK_CYPRIOT_SYLLABARY = 123, /*[10800]*/
    /** @stable ICU 2.6 */
    UBLOCK_TAI_XUAN_JING_SYMBOLS = 124, /*[1D300]*/
    /** @stable ICU 2.6 */
    UBLOCK_VARIATION_SELECTORS_SUPPLEMENT = 125, /*[E0100]*/

    /* New blocks in Unicode 4.1 */

    /** @stable ICU 3.4 */
    UBLOCK_ANCIENT_GREEK_MUSICAL_NOTATION = 126, /*[1D200]*/
    /** @stable ICU 3.4 */
    UBLOCK_ANCIENT_GREEK_NUMBERS = 127, /*[10140]*/
    /** @stable ICU 3.4 */
    UBLOCK_ARABIC_SUPPLEMENT = 128, /*[0750]*/
    /** @stable ICU 3.4 */
    UBLOCK_BUGINESE = 129, /*[1A00]*/
    /** @stable ICU 3.4 */
    UBLOCK_CJK_STROKES = 130, /*[31C0]*/
    /** @stable ICU 3.4 */
    UBLOCK_COMBINING_DIACRITICAL_MARKS_SUPPLEMENT = 131, /*[1DC0]*/
    /** @stable ICU 3.4 */
    UBLOCK_COPTIC = 132, /*[2C80]*/
    /** @stable ICU 3.4 */
    UBLOCK_ETHIOPIC_EXTENDED = 133, /*[2D80]*/
    /** @stable ICU 3.4 */
    UBLOCK_ETHIOPIC_SUPPLEMENT = 134, /*[1380]*/
    /** @stable ICU 3.4 */
    UBLOCK_GEORGIAN_SUPPLEMENT = 135, /*[2D00]*/
    /** @stable ICU 3.4 */
    UBLOCK_GLAGOLITIC = 136, /*[2C00]*/
    /** @stable ICU 3.4 */
    UBLOCK_KHAROSHTHI = 137, /*[10A00]*/
    /** @stable ICU 3.4 */
    UBLOCK_MODIFIER_TONE_LETTERS = 138, /*[A700]*/
    /** @stable ICU 3.4 */
    UBLOCK_NEW_TAI_LUE = 139, /*[1980]*/
    /** @stable ICU 3.4 */
    UBLOCK_OLD_PERSIAN = 140, /*[103A0]*/
    /** @stable ICU 3.4 */
    UBLOCK_PHONETIC_EXTENSIONS_SUPPLEMENT = 141, /*[1D80]*/
    /** @stable ICU 3.4 */
    UBLOCK_SUPPLEMENTAL_PUNCTUATION = 142, /*[2E00]*/
    /** @stable ICU 3.4 */
    UBLOCK_SYLOTI_NAGRI = 143, /*[A800]*/
    /** @stable ICU 3.4 */
    UBLOCK_TIFINAGH = 144, /*[2D30]*/
    /** @stable ICU 3.4 */
    UBLOCK_VERTICAL_FORMS = 145, /*[FE10]*/

    /* New blocks in Unicode 5.0 */

    /** @stable ICU 3.6 */
    UBLOCK_NKO = 146, /*[07C0]*/
    /** @stable ICU 3.6 */
    UBLOCK_BALINESE = 147, /*[1B00]*/
    /** @stable ICU 3.6 */
    UBLOCK_LATIN_EXTENDED_C = 148, /*[2C60]*/
    /** @stable ICU 3.6 */
    UBLOCK_LATIN_EXTENDED_D = 149, /*[A720]*/
    /** @stable ICU 3.6 */
    UBLOCK_PHAGS_PA = 150, /*[A840]*/
    /** @stable ICU 3.6 */
    UBLOCK_PHOENICIAN = 151, /*[10900]*/
    /** @stable ICU 3.6 */
    UBLOCK_CUNEIFORM = 152, /*[12000]*/
    /** @stable ICU 3.6 */
    UBLOCK_CUNEIFORM_NUMBERS_AND_PUNCTUATION = 153, /*[12400]*/
    /** @stable ICU 3.6 */
    UBLOCK_COUNTING_ROD_NUMERALS = 154, /*[1D360]*/

    /* New blocks in Unicode 5.1 */

    /** @stable ICU 4.0 */
    UBLOCK_SUNDANESE = 155, /*[1B80]*/
    /** @stable ICU 4.0 */
    UBLOCK_LEPCHA = 156, /*[1C00]*/
    /** @stable ICU 4.0 */
    UBLOCK_OL_CHIKI = 157, /*[1C50]*/
    /** @stable ICU 4.0 */
    UBLOCK_CYRILLIC_EXTENDED_A = 158, /*[2DE0]*/
    /** @stable ICU 4.0 */
    UBLOCK_VAI = 159, /*[A500]*/
    /** @stable ICU 4.0 */
    UBLOCK_CYRILLIC_EXTENDED_B = 160, /*[A640]*/
    /** @stable ICU 4.0 */
    UBLOCK_SAURASHTRA = 161, /*[A880]*/
    /** @stable ICU 4.0 */
    UBLOCK_KAYAH_LI = 162, /*[A900]*/
    /** @stable ICU 4.0 */
    UBLOCK_REJANG = 163, /*[A930]*/
    /** @stable ICU 4.0 */
    UBLOCK_CHAM = 164, /*[AA00]*/
    /** @stable ICU 4.0 */
    UBLOCK_ANCIENT_SYMBOLS = 165, /*[10190]*/
    /** @stable ICU 4.0 */
    UBLOCK_PHAISTOS_DISC = 166, /*[101D0]*/
    /** @stable ICU 4.0 */
    UBLOCK_LYCIAN = 167, /*[10280]*/
    /** @stable ICU 4.0 */
    UBLOCK_CARIAN = 168, /*[102A0]*/
    /** @stable ICU 4.0 */
    UBLOCK_LYDIAN = 169, /*[10920]*/
    /** @stable ICU 4.0 */
    UBLOCK_MAHJONG_TILES = 170, /*[1F000]*/
    /** @stable ICU 4.0 */
    UBLOCK_DOMINO_TILES = 171, /*[1F030]*/

    /* New blocks in Unicode 5.2 */

    /** @stable ICU 4.4 */
    UBLOCK_SAMARITAN = 172, /*[0800]*/
    /** @stable ICU 4.4 */
    UBLOCK_UNIFIED_CANADIAN_ABORIGINAL_SYLLABICS_EXTENDED = 173, /*[18B0]*/
    /** @stable ICU 4.4 */
    UBLOCK_TAI_THAM = 174, /*[1A20]*/
    /** @stable ICU 4.4 */
    UBLOCK_VEDIC_EXTENSIONS = 175, /*[1CD0]*/
    /** @stable ICU 4.4 */
    UBLOCK_LISU = 176, /*[A4D0]*/
    /** @stable ICU 4.4 */
    UBLOCK_BAMUM = 177, /*[A6A0]*/
    /** @stable ICU 4.4 */
    UBLOCK_COMMON_INDIC_NUMBER_FORMS = 178, /*[A830]*/
    /** @stable ICU 4.4 */
    UBLOCK_DEVANAGARI_EXTENDED = 179, /*[A8E0]*/
    /** @stable ICU 4.4 */
    UBLOCK_HANGUL_JAMO_EXTENDED_A = 180, /*[A960]*/
    /** @stable ICU 4.4 */
    UBLOCK_JAVANESE = 181, /*[A980]*/
    /** @stable ICU 4.4 */
    UBLOCK_MYANMAR_EXTENDED_A = 182, /*[AA60]*/
    /** @stable ICU 4.4 */
    UBLOCK_TAI_VIET = 183, /*[AA80]*/
    /** @stable ICU 4.4 */
    UBLOCK_MEETEI_MAYEK = 184, /*[ABC0]*/
    /** @stable ICU 4.4 */
    UBLOCK_HANGUL_JAMO_EXTENDED_B = 185, /*[D7B0]*/
    /** @stable ICU 4.4 */
    UBLOCK_IMPERIAL_ARAMAIC = 186, /*[10840]*/
    /** @stable ICU 4.4 */
    UBLOCK_OLD_SOUTH_ARABIAN = 187, /*[10A60]*/
    /** @stable ICU 4.4 */
    UBLOCK_AVESTAN = 188, /*[10B00]*/
    /** @stable ICU 4.4 */
    UBLOCK_INSCRIPTIONAL_PARTHIAN = 189, /*[10B40]*/
    /** @stable ICU 4.4 */
    UBLOCK_INSCRIPTIONAL_PAHLAVI = 190, /*[10B60]*/
    /** @stable ICU 4.4 */
    UBLOCK_OLD_TURKIC = 191, /*[10C00]*/
    /** @stable ICU 4.4 */
    UBLOCK_RUMI_NUMERAL_SYMBOLS = 192, /*[10E60]*/
    /** @stable ICU 4.4 */
    UBLOCK_KAITHI = 193, /*[11080]*/
    /** @stable ICU 4.4 */
    UBLOCK_EGYPTIAN_HIEROGLYPHS = 194, /*[13000]*/
    /** @stable ICU 4.4 */
    UBLOCK_ENCLOSED_ALPHANUMERIC_SUPPLEMENT = 195, /*[1F100]*/
    /** @stable ICU 4.4 */
    UBLOCK_ENCLOSED_IDEOGRAPHIC_SUPPLEMENT = 196, /*[1F200]*/
    /** @stable ICU 4.4 */
    UBLOCK_CJK_UNIFIED_IDEOGRAPHS_EXTENSION_C = 197, /*[2A700]*/

    /* New blocks in Unicode 6.0 */

    /** @stable ICU 4.6 */
    UBLOCK_MANDAIC = 198, /*[0840]*/
    /** @stable ICU 4.6 */
    UBLOCK_BATAK = 199, /*[1BC0]*/
    /** @stable ICU 4.6 */
    UBLOCK_ETHIOPIC_EXTENDED_A = 200, /*[AB00]*/
    /** @stable ICU 4.6 */
    UBLOCK_BRAHMI = 201, /*[11000]*/
    /** @stable ICU 4.6 */
    UBLOCK_BAMUM_SUPPLEMENT = 202, /*[16800]*/
    /** @stable ICU 4.6 */
    UBLOCK_KANA_SUPPLEMENT = 203, /*[1B000]*/
    /** @stable ICU 4.6 */
    UBLOCK_PLAYING_CARDS = 204, /*[1F0A0]*/
    /** @stable ICU 4.6 */
    UBLOCK_MISCELLANEOUS_SYMBOLS_AND_PICTOGRAPHS = 205, /*[1F300]*/
    /** @stable ICU 4.6 */
    UBLOCK_EMOTICONS = 206, /*[1F600]*/
    /** @stable ICU 4.6 */
    UBLOCK_TRANSPORT_AND_MAP_SYMBOLS = 207, /*[1F680]*/
    /** @stable ICU 4.6 */
    UBLOCK_ALCHEMICAL_SYMBOLS = 208, /*[1F700]*/
    /** @stable ICU 4.6 */
    UBLOCK_CJK_UNIFIED_IDEOGRAPHS_EXTENSION_D = 209, /*[2B740]*/

    /* New blocks in Unicode 6.1 */

    /** @stable ICU 49 */
    UBLOCK_ARABIC_EXTENDED_A = 210, /*[08A0]*/
    /** @stable ICU 49 */
    UBLOCK_ARABIC_MATHEMATICAL_ALPHABETIC_SYMBOLS = 211, /*[1EE00]*/
    /** @stable ICU 49 */
    UBLOCK_CHAKMA = 212, /*[11100]*/
    /** @stable ICU 49 */
    UBLOCK_MEETEI_MAYEK_EXTENSIONS = 213, /*[AAE0]*/
    /** @stable ICU 49 */
    UBLOCK_MEROITIC_CURSIVE = 214, /*[109A0]*/
    /** @stable ICU 49 */
    UBLOCK_MEROITIC_HIEROGLYPHS = 215, /*[10980]*/
    /** @stable ICU 49 */
    UBLOCK_MIAO = 216, /*[16F00]*/
    /** @stable ICU 49 */
    UBLOCK_SHARADA = 217, /*[11180]*/
    /** @stable ICU 49 */
    UBLOCK_SORA_SOMPENG = 218, /*[110D0]*/
    /** @stable ICU 49 */
    UBLOCK_SUNDANESE_SUPPLEMENT = 219, /*[1CC0]*/
    /** @stable ICU 49 */
    UBLOCK_TAKRI = 220, /*[11680]*/

    /* New blocks in Unicode 7.0 */

    /** @stable ICU 54 */
    UBLOCK_BASSA_VAH = 221, /*[16AD0]*/
    /** @stable ICU 54 */
    UBLOCK_CAUCASIAN_ALBANIAN = 222, /*[10530]*/
    /** @stable ICU 54 */
    UBLOCK_COPTIC_EPACT_NUMBERS = 223, /*[102E0]*/
    /** @stable ICU 54 */
    UBLOCK_COMBINING_DIACRITICAL_MARKS_EXTENDED = 224, /*[1AB0]*/
    /** @stable ICU 54 */
    UBLOCK_DUPLOYAN = 225, /*[1BC00]*/
    /** @stable ICU 54 */
    UBLOCK_ELBASAN = 226, /*[10500]*/
    /** @stable ICU 54 */
    UBLOCK_GEOMETRIC_SHAPES_EXTENDED = 227, /*[1F780]*/
    /** @stable ICU 54 */
    UBLOCK_GRANTHA = 228, /*[11300]*/
    /** @stable ICU 54 */
    UBLOCK_KHOJKI = 229, /*[11200]*/
    /** @stable ICU 54 */
    UBLOCK_KHUDAWADI = 230, /*[112B0]*/
    /** @stable ICU 54 */
    UBLOCK_LATIN_EXTENDED_E = 231, /*[AB30]*/
    /** @stable ICU 54 */
    UBLOCK_LINEAR_A = 232, /*[10600]*/
    /** @stable ICU 54 */
    UBLOCK_MAHAJANI = 233, /*[11150]*/
    /** @stable ICU 54 */
    UBLOCK_MANICHAEAN = 234, /*[10AC0]*/
    /** @stable ICU 54 */
    UBLOCK_MENDE_KIKAKUI = 235, /*[1E800]*/
    /** @stable ICU 54 */
    UBLOCK_MODI = 236, /*[11600]*/
    /** @stable ICU 54 */
    UBLOCK_MRO = 237, /*[16A40]*/
    /** @stable ICU 54 */
    UBLOCK_MYANMAR_EXTENDED_B = 238, /*[A9E0]*/
    /** @stable ICU 54 */
    UBLOCK_NABATAEAN = 239, /*[10880]*/
    /** @stable ICU 54 */
    UBLOCK_OLD_NORTH_ARABIAN = 240, /*[10A80]*/
    /** @stable ICU 54 */
    UBLOCK_OLD_PERMIC = 241, /*[10350]*/
    /** @stable ICU 54 */
    UBLOCK_ORNAMENTAL_DINGBATS = 242, /*[1F650]*/
    /** @stable ICU 54 */
    UBLOCK_PAHAWH_HMONG = 243, /*[16B00]*/
    /** @stable ICU 54 */
    UBLOCK_PALMYRENE = 244, /*[10860]*/
    /** @stable ICU 54 */
    UBLOCK_PAU_CIN_HAU = 245, /*[11AC0]*/
    /** @stable ICU 54 */
    UBLOCK_PSALTER_PAHLAVI = 246, /*[10B80]*/
    /** @stable ICU 54 */
    UBLOCK_SHORTHAND_FORMAT_CONTROLS = 247, /*[1BCA0]*/
    /** @stable ICU 54 */
    UBLOCK_SIDDHAM = 248, /*[11580]*/
    /** @stable ICU 54 */
    UBLOCK_SINHALA_ARCHAIC_NUMBERS = 249, /*[111E0]*/
    /** @stable ICU 54 */
    UBLOCK_SUPPLEMENTAL_ARROWS_C = 250, /*[1F800]*/
    /** @stable ICU 54 */
    UBLOCK_TIRHUTA = 251, /*[11480]*/
    /** @stable ICU 54 */
    UBLOCK_WARANG_CITI = 252, /*[118A0]*/

    /* New blocks in Unicode 8.0 */

    /** @stable ICU 56 */
    UBLOCK_AHOM = 253, /*[11700]*/
    /** @stable ICU 56 */
    UBLOCK_ANATOLIAN_HIEROGLYPHS = 254, /*[14400]*/
    /** @stable ICU 56 */
    UBLOCK_CHEROKEE_SUPPLEMENT = 255, /*[AB70]*/
    /** @stable ICU 56 */
    UBLOCK_CJK_UNIFIED_IDEOGRAPHS_EXTENSION_E = 256, /*[2B820]*/
    /** @stable ICU 56 */
    UBLOCK_EARLY_DYNASTIC_CUNEIFORM = 257, /*[12480]*/
    /** @stable ICU 56 */
    UBLOCK_HATRAN = 258, /*[108E0]*/
    /** @stable ICU 56 */
    UBLOCK_MULTANI = 259, /*[11280]*/
    /** @stable ICU 56 */
    UBLOCK_OLD_HUNGARIAN = 260, /*[10C80]*/
    /** @stable ICU 56 */
    UBLOCK_SUPPLEMENTAL_SYMBOLS_AND_PICTOGRAPHS = 261, /*[1F900]*/
    /** @stable ICU 56 */
    UBLOCK_SUTTON_SIGNWRITING = 262, /*[1D800]*/

    /* New blocks in Unicode 9.0 */

    /** @stable ICU 58 */
    UBLOCK_ADLAM = 263, /*[1E900]*/
    /** @stable ICU 58 */
    UBLOCK_BHAIKSUKI = 264, /*[11C00]*/
    /** @stable ICU 58 */
    UBLOCK_CYRILLIC_EXTENDED_C = 265, /*[1C80]*/
    /** @stable ICU 58 */
    UBLOCK_GLAGOLITIC_SUPPLEMENT = 266, /*[1E000]*/
    /** @stable ICU 58 */
    UBLOCK_IDEOGRAPHIC_SYMBOLS_AND_PUNCTUATION = 267, /*[16FE0]*/
    /** @stable ICU 58 */
    UBLOCK_MARCHEN = 268, /*[11C70]*/
    /** @stable ICU 58 */
    UBLOCK_MONGOLIAN_SUPPLEMENT = 269, /*[11660]*/
    /** @stable ICU 58 */
    UBLOCK_NEWA = 270, /*[11400]*/
    /** @stable ICU 58 */
    UBLOCK_OSAGE = 271, /*[104B0]*/
    /** @stable ICU 58 */
    UBLOCK_TANGUT = 272, /*[17000]*/
    /** @stable ICU 58 */
    UBLOCK_TANGUT_COMPONENTS = 273, /*[18800]*/

    // New blocks in Unicode 10.0

    /** @stable ICU 60 */
    UBLOCK_CJK_UNIFIED_IDEOGRAPHS_EXTENSION_F = 274, /*[2CEB0]*/
    /** @stable ICU 60 */
    UBLOCK_KANA_EXTENDED_A = 275, /*[1B100]*/
    /** @stable ICU 60 */
    UBLOCK_MASARAM_GONDI = 276, /*[11D00]*/
    /** @stable ICU 60 */
    UBLOCK_NUSHU = 277, /*[1B170]*/
    /** @stable ICU 60 */
    UBLOCK_SOYOMBO = 278, /*[11A50]*/
    /** @stable ICU 60 */
    UBLOCK_SYRIAC_SUPPLEMENT = 279, /*[0860]*/
    /** @stable ICU 60 */
    UBLOCK_ZANABAZAR_SQUARE = 280, /*[11A00]*/

    // New blocks in Unicode 11.0

    /** @stable ICU 62 */
    UBLOCK_CHESS_SYMBOLS = 281, /*[1FA00]*/
    /** @stable ICU 62 */
    UBLOCK_DOGRA = 282, /*[11800]*/
    /** @stable ICU 62 */
    UBLOCK_GEORGIAN_EXTENDED = 283, /*[1C90]*/
    /** @stable ICU 62 */
    UBLOCK_GUNJALA_GONDI = 284, /*[11D60]*/
    /** @stable ICU 62 */
    UBLOCK_HANIFI_ROHINGYA = 285, /*[10D00]*/
    /** @stable ICU 62 */
    UBLOCK_INDIC_SIYAQ_NUMBERS = 286, /*[1EC70]*/
    /** @stable ICU 62 */
    UBLOCK_MAKASAR = 287, /*[11EE0]*/
    /** @stable ICU 62 */
    UBLOCK_MAYAN_NUMERALS = 288, /*[1D2E0]*/
    /** @stable ICU 62 */
    UBLOCK_MEDEFAIDRIN = 289, /*[16E40]*/
    /** @stable ICU 62 */
    UBLOCK_OLD_SOGDIAN = 290, /*[10F00]*/
    /** @stable ICU 62 */
    UBLOCK_SOGDIAN = 291, /*[10F30]*/

    // New blocks in Unicode 12.0

    /** @stable ICU 64 */
    UBLOCK_EGYPTIAN_HIEROGLYPH_FORMAT_CONTROLS = 292, /*[13430]*/
    /** @stable ICU 64 */
    UBLOCK_ELYMAIC = 293, /*[10FE0]*/
    /** @stable ICU 64 */
    UBLOCK_NANDINAGARI = 294, /*[119A0]*/
    /** @stable ICU 64 */
    UBLOCK_NYIAKENG_PUACHUE_HMONG = 295, /*[1E100]*/
    /** @stable ICU 64 */
    UBLOCK_OTTOMAN_SIYAQ_NUMBERS = 296, /*[1ED00]*/
    /** @stable ICU 64 */
    UBLOCK_SMALL_KANA_EXTENSION = 297, /*[1B130]*/
    /** @stable ICU 64 */
    UBLOCK_SYMBOLS_AND_PICTOGRAPHS_EXTENDED_A = 298, /*[1FA70]*/
    /** @stable ICU 64 */
    UBLOCK_TAMIL_SUPPLEMENT = 299, /*[11FC0]*/
    /** @stable ICU 64 */
    UBLOCK_WANCHO = 300, /*[1E2C0]*/

#ifndef U_HIDE_DEPRECATED_API
    /**
     * 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_COUNT = 301,
#endif  // U_HIDE_DEPRECATED_API

    /** @stable ICU 2.0 */
    UBLOCK_INVALID_CODE=-1
};

/** @stable ICU 2.0 */
typedef enum UBlockCode UBlockCode;

/**
 * East Asian Width constants.
 *
 * @see UCHAR_EAST_ASIAN_WIDTH
 * @see u_getIntPropertyValue
 * @stable ICU 2.2
 */
typedef enum UEastAsianWidth {
    /*
     * Note: UEastAsianWidth constants are parsed by preparseucd.py.
     * It matches lines like
     *     U_EA_<Unicode East_Asian_Width value name>
     */

    U_EA_NEUTRAL,   /*[N]*/
    U_EA_AMBIGUOUS, /*[A]*/
    U_EA_HALFWIDTH, /*[H]*/
    U_EA_FULLWIDTH, /*[F]*/
    U_EA_NARROW,    /*[Na]*/
    U_EA_WIDE,      /*[W]*/
#ifndef U_HIDE_DEPRECATED_API
    /**
     * 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.
     */
    U_EA_COUNT
#endif  // U_HIDE_DEPRECATED_API
} UEastAsianWidth;

/**
 * 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 u_charName
 * @stable ICU 2.0
 */
typedef enum UCharNameChoice {
    /** Unicode character name (Name property). @stable ICU 2.0 */
    U_UNICODE_CHAR_NAME,
#ifndef U_HIDE_DEPRECATED_API
    /**
     * 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_UNICODE_10_CHAR_NAME,
#endif  /* U_HIDE_DEPRECATED_API */
    /** Standard or synthetic character name. @stable ICU 2.0 */
    U_EXTENDED_CHAR_NAME = U_UNICODE_CHAR_NAME+2,
    /** Corrected name from NameAliases.txt. @stable ICU 4.4 */
    U_CHAR_NAME_ALIAS,
#ifndef U_HIDE_DEPRECATED_API
    /**
     * One more than the highest normal UCharNameChoice value.
     * @deprecated ICU 58 The numeric value may change over time, see ICU ticket #12420.
     */
    U_CHAR_NAME_CHOICE_COUNT
#endif  // U_HIDE_DEPRECATED_API
} UCharNameChoice;

/**
 * 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 u_getPropertyName()
 * @see u_getPropertyValueName()
 * @stable ICU 2.4
 */
typedef enum UPropertyNameChoice {
    U_SHORT_PROPERTY_NAME,
    U_LONG_PROPERTY_NAME,
#ifndef U_HIDE_DEPRECATED_API
    /**
     * One more than the highest normal UPropertyNameChoice value.
     * @deprecated ICU 58 The numeric value may change over time, see ICU ticket #12420.
     */
    U_PROPERTY_NAME_CHOICE_COUNT
#endif  // U_HIDE_DEPRECATED_API
} UPropertyNameChoice;

/**
 * Decomposition Type constants.
 *
 * @see UCHAR_DECOMPOSITION_TYPE
 * @stable ICU 2.2
 */
typedef enum UDecompositionType {
    /*
     * Note: UDecompositionType constants are parsed by preparseucd.py.
     * It matches lines like
     *     U_DT_<Unicode Decomposition_Type value name>
     */

    U_DT_NONE,              /*[none]*/
    U_DT_CANONICAL,         /*[can]*/
    U_DT_COMPAT,            /*[com]*/
    U_DT_CIRCLE,            /*[enc]*/
    U_DT_FINAL,             /*[fin]*/
    U_DT_FONT,              /*[font]*/
    U_DT_FRACTION,          /*[fra]*/
    U_DT_INITIAL,           /*[init]*/
    U_DT_ISOLATED,          /*[iso]*/
    U_DT_MEDIAL,            /*[med]*/
    U_DT_NARROW,            /*[nar]*/
    U_DT_NOBREAK,           /*[nb]*/
    U_DT_SMALL,             /*[sml]*/
    U_DT_SQUARE,            /*[sqr]*/
    U_DT_SUB,               /*[sub]*/
    U_DT_SUPER,             /*[sup]*/
    U_DT_VERTICAL,          /*[vert]*/
    U_DT_WIDE,              /*[wide]*/
#ifndef U_HIDE_DEPRECATED_API
    /**
     * 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.
     */
    U_DT_COUNT /* 18 */
#endif  // U_HIDE_DEPRECATED_API
} UDecompositionType;

/**
 * Joining Type constants.
 *
 * @see UCHAR_JOINING_TYPE
 * @stable ICU 2.2
 */
typedef enum UJoiningType {
    /*
     * Note: UJoiningType constants are parsed by preparseucd.py.
     * It matches lines like
     *     U_JT_<Unicode Joining_Type value name>
     */

    U_JT_NON_JOINING,       /*[U]*/
    U_JT_JOIN_CAUSING,      /*[C]*/
    U_JT_DUAL_JOINING,      /*[D]*/
    U_JT_LEFT_JOINING,      /*[L]*/
    U_JT_RIGHT_JOINING,     /*[R]*/
    U_JT_TRANSPARENT,       /*[T]*/
#ifndef U_HIDE_DEPRECATED_API
    /**
     * 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.
     */
    U_JT_COUNT /* 6 */
#endif  // U_HIDE_DEPRECATED_API
} UJoiningType;

/**
 * Joining Group constants.
 *
 * @see UCHAR_JOINING_GROUP
 * @stable ICU 2.2
 */
typedef enum UJoiningGroup {
    /*
     * Note: UJoiningGroup constants are parsed by preparseucd.py.
     * It matches lines like
     *     U_JG_<Unicode Joining_Group value name>
     */

    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,  /**< @stable ICU 4.6 */
    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,        /**< @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 */

#ifndef U_HIDE_DEPRECATED_API
    /**
     * 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.
     */
    U_JG_COUNT
#endif  // U_HIDE_DEPRECATED_API
} UJoiningGroup;

/**
 * Grapheme Cluster Break constants.
 *
 * @see UCHAR_GRAPHEME_CLUSTER_BREAK
 * @stable ICU 3.4
 */
typedef enum UGraphemeClusterBreak {
    /*
     * Note: UGraphemeClusterBreak constants are parsed by preparseucd.py.
     * It matches lines like
     *     U_GCB_<Unicode Grapheme_Cluster_Break value name>
     */

    U_GCB_OTHER = 0,            /*[XX]*/
    U_GCB_CONTROL = 1,          /*[CN]*/
    U_GCB_CR = 2,               /*[CR]*/
    U_GCB_EXTEND = 3,           /*[EX]*/
    U_GCB_L = 4,                /*[L]*/
    U_GCB_LF = 5,               /*[LF]*/
    U_GCB_LV = 6,               /*[LV]*/
    U_GCB_LVT = 7,              /*[LVT]*/
    U_GCB_T = 8,                /*[T]*/
    U_GCB_V = 9,                /*[V]*/
    /** @stable ICU 4.0 */
    U_GCB_SPACING_MARK = 10,    /*[SM]*/ /* from here on: new in Unicode 5.1/ICU 4.0 */
    /** @stable ICU 4.0 */
    U_GCB_PREPEND = 11,         /*[PP]*/
    /** @stable ICU 50 */
    U_GCB_REGIONAL_INDICATOR = 12,  /*[RI]*/ /* new in Unicode 6.2/ICU 50 */
    /** @stable ICU 58 */
    U_GCB_E_BASE = 13,          /*[EB]*/ /* from here on: new in Unicode 9.0/ICU 58 */
    /** @stable ICU 58 */
    U_GCB_E_BASE_GAZ = 14,      /*[EBG]*/
    /** @stable ICU 58 */
    U_GCB_E_MODIFIER = 15,      /*[EM]*/
    /** @stable ICU 58 */
    U_GCB_GLUE_AFTER_ZWJ = 16,  /*[GAZ]*/
    /** @stable ICU 58 */
    U_GCB_ZWJ = 17,             /*[ZWJ]*/

#ifndef U_HIDE_DEPRECATED_API
    /**
     * 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.
     */
    U_GCB_COUNT = 18
#endif  // U_HIDE_DEPRECATED_API
} UGraphemeClusterBreak;

/**
 * Word Break constants.
 * (UWordBreak is a pre-existing enum type in ubrk.h for word break status tags.)
 *
 * @see UCHAR_WORD_BREAK
 * @stable ICU 3.4
 */
typedef enum UWordBreakValues {
    /*
     * Note: UWordBreakValues constants are parsed by preparseucd.py.
     * It matches lines like
     *     U_WB_<Unicode Word_Break value name>
     */

    U_WB_OTHER = 0,             /*[XX]*/
    U_WB_ALETTER = 1,           /*[LE]*/
    U_WB_FORMAT = 2,            /*[FO]*/
    U_WB_KATAKANA = 3,          /*[KA]*/
    U_WB_MIDLETTER = 4,         /*[ML]*/
    U_WB_MIDNUM = 5,            /*[MN]*/
    U_WB_NUMERIC = 6,           /*[NU]*/
    U_WB_EXTENDNUMLET = 7,      /*[EX]*/
    /** @stable ICU 4.0 */
    U_WB_CR = 8,                /*[CR]*/ /* from here on: new in Unicode 5.1/ICU 4.0 */
    /** @stable ICU 4.0 */
    U_WB_EXTEND = 9,            /*[Extend]*/
    /** @stable ICU 4.0 */
    U_WB_LF = 10,               /*[LF]*/
    /** @stable ICU 4.0 */
    U_WB_MIDNUMLET =11,         /*[MB]*/
    /** @stable ICU 4.0 */
    U_WB_NEWLINE =12,           /*[NL]*/
    /** @stable ICU 50 */
    U_WB_REGIONAL_INDICATOR = 13,   /*[RI]*/ /* new in Unicode 6.2/ICU 50 */
    /** @stable ICU 52 */
    U_WB_HEBREW_LETTER = 14,    /*[HL]*/ /* from here on: new in Unicode 6.3/ICU 52 */
    /** @stable ICU 52 */
    U_WB_SINGLE_QUOTE = 15,     /*[SQ]*/
    /** @stable ICU 52 */
    U_WB_DOUBLE_QUOTE = 16,     /*[DQ]*/
    /** @stable ICU 58 */
    U_WB_E_BASE = 17,           /*[EB]*/ /* from here on: new in Unicode 9.0/ICU 58 */
    /** @stable ICU 58 */
    U_WB_E_BASE_GAZ = 18,       /*[EBG]*/
    /** @stable ICU 58 */
    U_WB_E_MODIFIER = 19,       /*[EM]*/
    /** @stable ICU 58 */
    U_WB_GLUE_AFTER_ZWJ = 20,   /*[GAZ]*/
    /** @stable ICU 58 */
    U_WB_ZWJ = 21,              /*[ZWJ]*/
    /** @stable ICU 62 */
    U_WB_WSEGSPACE = 22,        /*[WSEGSPACE]*/

#ifndef U_HIDE_DEPRECATED_API
    /**
     * 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.
     */
    U_WB_COUNT = 23
#endif  // U_HIDE_DEPRECATED_API
} UWordBreakValues;

/**
 * Sentence Break constants.
 *
 * @see UCHAR_SENTENCE_BREAK
 * @stable ICU 3.4
 */
typedef enum USentenceBreak {
    /*
     * Note: USentenceBreak constants are parsed by preparseucd.py.
     * It matches lines like
     *     U_SB_<Unicode Sentence_Break value name>
     */

    U_SB_OTHER = 0,             /*[XX]*/
    U_SB_ATERM = 1,             /*[AT]*/
    U_SB_CLOSE = 2,             /*[CL]*/
    U_SB_FORMAT = 3,            /*[FO]*/
    U_SB_LOWER = 4,             /*[LO]*/
    U_SB_NUMERIC = 5,           /*[NU]*/
    U_SB_OLETTER = 6,           /*[LE]*/
    U_SB_SEP = 7,               /*[SE]*/
    U_SB_SP = 8,                /*[SP]*/
    U_SB_STERM = 9,             /*[ST]*/
    U_SB_UPPER = 10,            /*[UP]*/
    U_SB_CR = 11,               /*[CR]*/ /* from here on: new in Unicode 5.1/ICU 4.0 */
    U_SB_EXTEND = 12,           /*[EX]*/
    U_SB_LF = 13,               /*[LF]*/
    U_SB_SCONTINUE = 14,        /*[SC]*/
#ifndef U_HIDE_DEPRECATED_API
    /**
     * 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.
     */
    U_SB_COUNT = 15
#endif  // U_HIDE_DEPRECATED_API
} USentenceBreak;

/**
 * Line Break constants.
 *
 * @see UCHAR_LINE_BREAK
 * @stable ICU 2.2
 */
typedef enum ULineBreak {
    /*
     * Note: ULineBreak constants are parsed by preparseucd.py.
     * It matches lines like
     *     U_LB_<Unicode Line_Break value name>
     */

    U_LB_UNKNOWN = 0,           /*[XX]*/
    U_LB_AMBIGUOUS = 1,         /*[AI]*/
    U_LB_ALPHABETIC = 2,        /*[AL]*/
    U_LB_BREAK_BOTH = 3,        /*[B2]*/
    U_LB_BREAK_AFTER = 4,       /*[BA]*/
    U_LB_BREAK_BEFORE = 5,      /*[BB]*/
    U_LB_MANDATORY_BREAK = 6,   /*[BK]*/
    U_LB_CONTINGENT_BREAK = 7,  /*[CB]*/
    U_LB_CLOSE_PUNCTUATION = 8, /*[CL]*/
    U_LB_COMBINING_MARK = 9,    /*[CM]*/
    U_LB_CARRIAGE_RETURN = 10,   /*[CR]*/
    U_LB_EXCLAMATION = 11,       /*[EX]*/
    U_LB_GLUE = 12,              /*[GL]*/
    U_LB_HYPHEN = 13,            /*[HY]*/
    U_LB_IDEOGRAPHIC = 14,       /*[ID]*/
    /** Renamed from the misspelled "inseperable" in Unicode 4.0.1/ICU 3.0 @stable ICU 3.0 */
    U_LB_INSEPARABLE = 15,       /*[IN]*/
    U_LB_INSEPERABLE = U_LB_INSEPARABLE,
    U_LB_INFIX_NUMERIC = 16,     /*[IS]*/
    U_LB_LINE_FEED = 17,         /*[LF]*/
    U_LB_NONSTARTER = 18,        /*[NS]*/
    U_LB_NUMERIC = 19,           /*[NU]*/
    U_LB_OPEN_PUNCTUATION = 20,  /*[OP]*/
    U_LB_POSTFIX_NUMERIC = 21,   /*[PO]*/
    U_LB_PREFIX_NUMERIC = 22,    /*[PR]*/
    U_LB_QUOTATION = 23,         /*[QU]*/
    U_LB_COMPLEX_CONTEXT = 24,   /*[SA]*/
    U_LB_SURROGATE = 25,         /*[SG]*/
    U_LB_SPACE = 26,             /*[SP]*/
    U_LB_BREAK_SYMBOLS = 27,     /*[SY]*/
    U_LB_ZWSPACE = 28,           /*[ZW]*/
    /** @stable ICU 2.6 */
    U_LB_NEXT_LINE = 29,         /*[NL]*/ /* from here on: new in Unicode 4/ICU 2.6 */
    /** @stable ICU 2.6 */
    U_LB_WORD_JOINER = 30,       /*[WJ]*/
    /** @stable ICU 3.4 */
    U_LB_H2 = 31,                /*[H2]*/ /* from here on: new in Unicode 4.1/ICU 3.4 */
    /** @stable ICU 3.4 */
    U_LB_H3 = 32,                /*[H3]*/
    /** @stable ICU 3.4 */
    U_LB_JL = 33,                /*[JL]*/
    /** @stable ICU 3.4 */
    U_LB_JT = 34,                /*[JT]*/
    /** @stable ICU 3.4 */
    U_LB_JV = 35,                /*[JV]*/
    /** @stable ICU 4.4 */
    U_LB_CLOSE_PARENTHESIS = 36, /*[CP]*/ /* new in Unicode 5.2/ICU 4.4 */
    /** @stable ICU 49 */
    U_LB_CONDITIONAL_JAPANESE_STARTER = 37,/*[CJ]*/ /* new in Unicode 6.1/ICU 49 */
    /** @stable ICU 49 */
    U_LB_HEBREW_LETTER = 38,     /*[HL]*/ /* new in Unicode 6.1/ICU 49 */
    /** @stable ICU 50 */
    U_LB_REGIONAL_INDICATOR = 39,/*[RI]*/ /* new in Unicode 6.2/ICU 50 */
    /** @stable ICU 58 */
    U_LB_E_BASE = 40,            /*[EB]*/ /* from here on: new in Unicode 9.0/ICU 58 */
    /** @stable ICU 58 */
    U_LB_E_MODIFIER = 41,        /*[EM]*/
    /** @stable ICU 58 */
    U_LB_ZWJ = 42,               /*[ZWJ]*/
#ifndef U_HIDE_DEPRECATED_API
    /**
     * 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.
     */
    U_LB_COUNT = 43
#endif  // U_HIDE_DEPRECATED_API
} ULineBreak;

/**
 * Numeric Type constants.
 *
 * @see UCHAR_NUMERIC_TYPE
 * @stable ICU 2.2
 */
typedef enum UNumericType {
    /*
     * Note: UNumericType constants are parsed by preparseucd.py.
     * It matches lines like
     *     U_NT_<Unicode Numeric_Type value name>
     */

    U_NT_NONE,              /*[None]*/
    U_NT_DECIMAL,           /*[de]*/
    U_NT_DIGIT,             /*[di]*/
    U_NT_NUMERIC,           /*[nu]*/
#ifndef U_HIDE_DEPRECATED_API
    /**
     * 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.
     */
    U_NT_COUNT
#endif  // U_HIDE_DEPRECATED_API
} UNumericType;

/**
 * Hangul Syllable Type constants.
 *
 * @see UCHAR_HANGUL_SYLLABLE_TYPE
 * @stable ICU 2.6
 */
typedef enum UHangulSyllableType {
    /*
     * Note: UHangulSyllableType constants are parsed by preparseucd.py.
     * It matches lines like
     *     U_HST_<Unicode Hangul_Syllable_Type value name>
     */

    U_HST_NOT_APPLICABLE,   /*[NA]*/
    U_HST_LEADING_JAMO,     /*[L]*/
    U_HST_VOWEL_JAMO,       /*[V]*/
    U_HST_TRAILING_JAMO,    /*[T]*/
    U_HST_LV_SYLLABLE,      /*[LV]*/
    U_HST_LVT_SYLLABLE,     /*[LVT]*/
#ifndef U_HIDE_DEPRECATED_API
    /**
     * 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.
     */
    U_HST_COUNT
#endif  // U_HIDE_DEPRECATED_API
} UHangulSyllableType;

/**
 * Indic Positional Category constants.
 *
 * @see UCHAR_INDIC_POSITIONAL_CATEGORY
 * @stable ICU 63
 */
typedef enum UIndicPositionalCategory {
    /*
     * Note: UIndicPositionalCategory constants are parsed by preparseucd.py.
     * It matches lines like
     *     U_INPC_<Unicode Indic_Positional_Category value name>
     */

    /** @stable ICU 63 */
    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,
} UIndicPositionalCategory;

/**
 * Indic Syllabic Category constants.
 *
 * @see UCHAR_INDIC_SYLLABIC_CATEGORY
 * @stable ICU 63
 */
typedef enum UIndicSyllabicCategory {
    /*
     * Note: UIndicSyllabicCategory constants are parsed by preparseucd.py.
     * It matches lines like
     *     U_INSC_<Unicode Indic_Syllabic_Category value name>
     */

    /** @stable ICU 63 */
    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,
} UIndicSyllabicCategory;

/**
 * Vertical Orientation constants.
 *
 * @see UCHAR_VERTICAL_ORIENTATION
 * @stable ICU 63
 */
typedef enum UVerticalOrientation {
    /*
     * Note: UVerticalOrientation constants are parsed by preparseucd.py.
     * It matches lines like
     *     U_VO_<Unicode Vertical_Orientation value name>
     */

    /** @stable ICU 63 */
    U_VO_ROTATED,
    /** @stable ICU 63 */
    U_VO_TRANSFORMED_ROTATED,
    /** @stable ICU 63 */
    U_VO_TRANSFORMED_UPRIGHT,
    /** @stable ICU 63 */
    U_VO_UPRIGHT,
} UVerticalOrientation;

/**
 * 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.
 *
 * @param c Code point to test.
 * @param which UProperty selector constant, identifies which binary property to check.
 *        Must be UCHAR_BINARY_START<=which<UCHAR_BINARY_LIMIT.
 * @return 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, or not for this code point.
 *
 * @see UProperty
 * @see u_getBinaryPropertySet
 * @see u_getIntPropertyValue
 * @see u_getUnicodeVersion
 * @stable ICU 2.1
 */
U_STABLE UBool U_EXPORT2
u_hasBinaryProperty(UChar32 c, UProperty which);

/**
 * 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.
 *
 * @param property UCHAR_BINARY_START..UCHAR_BINARY_LIMIT-1
 * @param pErrorCode an in/out ICU UErrorCode
 * @return the property as a set
 * @see UProperty
 * @see u_hasBinaryProperty
 * @see Unicode::fromUSet
 * @stable ICU 63
 */
U_CAPI const USet * U_EXPORT2
u_getBinaryPropertySet(UProperty property, UErrorCode *pErrorCode);

/**
 * Check if a code point has the Alphabetic Unicode property.
 * Same as u_hasBinaryProperty(c, UCHAR_ALPHABETIC).
 * This is different from u_isalpha!
 * @param c Code point to test
 * @return true if the code point has the Alphabetic Unicode property, false otherwise
 *
 * @see UCHAR_ALPHABETIC
 * @see u_isalpha
 * @see u_hasBinaryProperty
 * @stable ICU 2.1
 */
U_STABLE UBool U_EXPORT2
u_isUAlphabetic(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!
 * @param c Code point to test
 * @return true if the code point has the Lowercase Unicode property, false otherwise
 *
 * @see UCHAR_LOWERCASE
 * @see u_islower
 * @see u_hasBinaryProperty
 * @stable ICU 2.1
 */
U_STABLE UBool U_EXPORT2
u_isULowercase(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!
 * @param c Code point to test
 * @return true if the code point has the Uppercase Unicode property, false otherwise
 *
 * @see UCHAR_UPPERCASE
 * @see u_isupper
 * @see u_hasBinaryProperty
 * @stable ICU 2.1
 */
U_STABLE UBool U_EXPORT2
u_isUUppercase(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.
 *
 * @param c Code point to test
 * @return true if the code point has the White_Space Unicode property, false otherwise.
 *
 * @see UCHAR_WHITE_SPACE
 * @see u_isWhitespace
 * @see u_isspace
 * @see u_isJavaSpaceChar
 * @see u_hasBinaryProperty
 * @stable ICU 2.1
 */
U_STABLE UBool U_EXPORT2
u_isUWhiteSpace(UChar32 c);

/**
 * 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);
 *
 * @param c Code point to test.
 * @param which UProperty 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.
 * @return 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 UProperty
 * @see u_hasBinaryProperty
 * @see u_getIntPropertyMinValue
 * @see u_getIntPropertyMaxValue
 * @see u_getIntPropertyMap
 * @see u_getUnicodeVersion
 * @stable ICU 2.2
 */
U_STABLE int32_t U_EXPORT2
u_getIntPropertyValue(UChar32 c, 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.
 *
 * @param which UProperty 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.
 * @return Minimum value returned by u_getIntPropertyValue for a Unicode property.
 *         0 if the property selector is out of range.
 *
 * @see UProperty
 * @see u_hasBinaryProperty
 * @see u_getUnicodeVersion
 * @see u_getIntPropertyMaxValue
 * @see u_getIntPropertyValue
 * @stable ICU 2.2
 */
U_STABLE int32_t U_EXPORT2
u_getIntPropertyMinValue(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.
 *
 * @param which UProperty 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.
 * @return Maximum value returned by u_getIntPropertyValue for a Unicode property.
 *         <=0 if the property selector is out of range.
 *
 * @see UProperty
 * @see u_hasBinaryProperty
 * @see u_getUnicodeVersion
 * @see u_getIntPropertyMaxValue
 * @see u_getIntPropertyValue
 * @stable ICU 2.2
 */
U_STABLE int32_t U_EXPORT2
u_getIntPropertyMaxValue(UProperty which);

/**
 * 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().
 *
 * @param property UCHAR_INT_START..UCHAR_INT_LIMIT-1
 * @param pErrorCode an in/out ICU UErrorCode
 * @return the property as a map
 * @see UProperty
 * @see u_getIntPropertyValue
 * @stable ICU 63
 */
U_CAPI const UCPMap * U_EXPORT2
u_getIntPropertyMap(UProperty property, UErrorCode *pErrorCode);

/**
 * 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.
 *
 * @param c Code point to get the numeric value for.
 * @return Numeric value of c, or U_NO_NUMERIC_VALUE if none is defined.
 *
 * @see U_NO_NUMERIC_VALUE
 * @stable ICU 2.2
 */
U_STABLE double U_EXPORT2
u_getNumericValue(UChar32 c);

/**
 * Special value that is returned by u_getNumericValue when
 * no numeric value is defined for a code point.
 *
 * @see u_getNumericValue
 * @stable ICU 2.2
 */
#define U_NO_NUMERIC_VALUE ((double)-123456789.)

/**
 * 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.
 *
 * @param c the code point to be tested
 * @return TRUE if the code point is an Ll lowercase letter
 *
 * @see UCHAR_LOWERCASE
 * @see u_isupper
 * @see u_istitle
 * @stable ICU 2.0
 */
U_STABLE UBool U_EXPORT2
u_islower(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.
 *
 * @param c the code point to be tested
 * @return TRUE if the code point is an Lu uppercase letter
 *
 * @see UCHAR_UPPERCASE
 * @see u_islower
 * @see u_istitle
 * @see u_tolower
 * @stable ICU 2.0
 */
U_STABLE UBool U_EXPORT2
u_isupper(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().
 *
 * @param c the code point to be tested
 * @return TRUE if the code point is an Lt titlecase letter
 *
 * @see u_isupper
 * @see u_islower
 * @see u_totitle
 * @stable ICU 2.0
 */
U_STABLE UBool U_EXPORT2
u_istitle(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.
 *
 * @param c the code point to be tested
 * @return TRUE if the code point is a digit character according to Character.isDigit()
 *
 * @stable ICU 2.0
 */
U_STABLE UBool U_EXPORT2
u_isdigit(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.
 *
 * @param c the code point to be tested
 * @return TRUE if the code point is a letter character
 *
 * @see u_isdigit
 * @see u_isalnum
 * @stable ICU 2.0
 */
U_STABLE UBool U_EXPORT2
u_isalpha(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.
 *
 * @param c the code point to be tested
 * @return TRUE if the code point is an alphanumeric character according to Character.isLetterOrDigit()
 *
 * @stable ICU 2.0
 */
U_STABLE UBool U_EXPORT2
u_isalnum(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.
 *
 * @param c the code point to be tested
 * @return TRUE if the code point is a hexadecimal digit
 *
 * @stable ICU 2.6
 */
U_STABLE UBool U_EXPORT2
u_isxdigit(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.
 *
 * @param c the code point to be tested
 * @return TRUE if the code point is a punctuation character
 *
 * @stable ICU 2.6
 */
U_STABLE UBool U_EXPORT2
u_ispunct(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.
 *
 * @param c the code point to be tested
 * @return TRUE if the code point is a "graphic" character
 *
 * @stable ICU 2.6
 */
U_STABLE UBool U_EXPORT2
u_isgraph(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.
 *
 * @param c the code point to be tested
 * @return TRUE if the code point is a "blank"
 *
 * @stable ICU 2.6
 */
U_STABLE UBool U_EXPORT2
u_isblank(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().
 *
 * @param c the code point to be tested
 * @return TRUE if the code point is assigned a character
 *
 * @see u_isdigit
 * @see u_isalpha
 * @see u_isalnum
 * @see u_isupper
 * @see u_islower
 * @see u_istitle
 * @stable ICU 2.0
 */
U_STABLE UBool U_EXPORT2
u_isdefined(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.
 *
 * @param c    the character to be tested
 * @return  true if the character is a space character; false otherwise.
 *
 * @see u_isJavaSpaceChar
 * @see u_isWhitespace
 * @see u_isUWhiteSpace
 * @stable ICU 2.0
 */
U_STABLE UBool U_EXPORT2
u_isspace(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.
 *
 * @param c the code point to be tested
 * @return TRUE if the code point is a space character according to Character.isSpaceChar()
 *
 * @see u_isspace
 * @see u_isWhitespace
 * @see u_isUWhiteSpace
 * @stable ICU 2.6
 */
U_STABLE UBool U_EXPORT2
u_isJavaSpaceChar(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.
 *
 * @param c the code point to be tested
 * @return TRUE if the code point is a whitespace character according to Java/ICU
 *
 * @see u_isspace
 * @see u_isJavaSpaceChar
 * @see u_isUWhiteSpace
 * @stable ICU 2.0
 */
U_STABLE UBool U_EXPORT2
u_isWhitespace(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.
 *
 * @param c the code point to be tested
 * @return TRUE if the code point is a control character
 *
 * @see UCHAR_DEFAULT_IGNORABLE_CODE_POINT
 * @see u_isprint
 * @stable ICU 2.0
 */
U_STABLE UBool U_EXPORT2
u_iscntrl(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().
 *
 * @param c the code point to be tested
 * @return TRUE if the code point is an ISO control code
 *
 * @see u_iscntrl
 * @stable ICU 2.6
 */
U_STABLE UBool U_EXPORT2
u_isISOControl(UChar32 c);

/**
 * Determines whether the specified code point is a printable character.
 * True for general categories <em>other</em> 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.
 *
 * @param c the code point to be tested
 * @return TRUE if the code point is a printable character
 *
 * @see UCHAR_DEFAULT_IGNORABLE_CODE_POINT
 * @see u_iscntrl
 * @stable ICU 2.0
 */
U_STABLE UBool U_EXPORT2
u_isprint(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).
 *
 * @param c the code point to be tested
 * @return TRUE if the code point is a base character according to this function
 *
 * @see u_isalpha
 * @see u_isdigit
 * @stable ICU 2.0
 */
U_STABLE UBool U_EXPORT2
u_isbase(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 <em>unassigned</em> 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()
 *
 * @param c the code point to be tested
 * @return the bidirectional category (UCharDirection) value
 *
 * @see UCharDirection
 * @stable ICU 2.0
 */
U_STABLE UCharDirection U_EXPORT2
u_charDirection(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
 *
 * @param c the code point to be tested
 * @return TRUE if the character has the Bidi_Mirrored property
 *
 * @see UCHAR_BIDI_MIRRORED
 * @stable ICU 2.0
 */
U_STABLE UBool U_EXPORT2
u_isMirrored(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.
 *
 * @param c the code point to be mapped
 * @return 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 UCHAR_BIDI_MIRRORED
 * @see u_isMirrored
 * @stable ICU 2.0
 */
U_STABLE UChar32 U_EXPORT2
u_charMirror(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/
 *
 * @param c the code point to be mapped
 * @return the paired bracket code point,
 *         or c itself if there is no such mapping
 *         (Bidi_Paired_Bracket_Type=None)
 *
 * @see UCHAR_BIDI_PAIRED_BRACKET
 * @see UCHAR_BIDI_PAIRED_BRACKET_TYPE
 * @see u_charMirror
 * @stable ICU 52
 */
U_STABLE UChar32 U_EXPORT2
u_getBidiPairedBracket(UChar32 c);

/**
 * Returns the general category value for the code point.
 *
 * Same as java.lang.Character.getType().
 *
 * @param c the code point to be tested
 * @return the general category (UCharCategory) value
 *
 * @see UCharCategory
 * @stable ICU 2.0
 */
U_STABLE int8_t U_EXPORT2
u_charType(UChar32 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)).
 *
 * @param c the code point to be tested
 * @return a single-bit mask corresponding to the general category (UCharCategory) value
 *
 * @see u_charType
 * @see UCharCategory
 * @see U_GC_CN_MASK
 * @stable ICU 2.1
 */
#define U_GET_GC_MASK(c) U_MASK(u_charType(c))

/**
 * 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.
 *
 * @param context an opaque pointer, as passed into utrie_enum()
 * @param start the first code point in a contiguous range with value
 * @param limit one past the last code point in a contiguous range with value
 * @param type the general category for all code points in [start..limit[
 * @return FALSE to stop the enumeration
 *
 * @stable ICU 2.1
 * @see UCharCategory
 * @see u_enumCharTypes
 */
typedef UBool U_CALLCONV
UCharEnumTypeRange(const void *context, UChar32 start, UChar32 limit, UCharCategory type);

/**
 * 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.
 *
 * @param enumRange a pointer to a function that is called for each contiguous range
 *                  of code points with the same general category
 * @param context an opaque pointer that is passed on to the callback function
 *
 * @stable ICU 2.1
 * @see UCharCategory
 * @see UCharEnumTypeRange
 */
U_STABLE void U_EXPORT2
u_enumCharTypes(UCharEnumTypeRange *enumRange, const void *context);

#if !UCONFIG_NO_NORMALIZATION

/**
 * Returns the combining class of the code point as specified in UnicodeData.txt.
 *
 * @param c the code point of the character
 * @return the combining class of the character
 * @stable ICU 2.0
 */
U_STABLE uint8_t U_EXPORT2
u_getCombiningClass(UChar32 c);

#endif

/**
 * 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.
 *
 * @param c the code point for which to get the decimal digit value
 * @return the decimal digit value of c,
 *         or -1 if c is not a decimal digit character
 *
 * @see u_getNumericValue
 * @stable ICU 2.0
 */
U_STABLE int32_t U_EXPORT2
u_charDigitValue(UChar32 c);

/**
 * Returns the Unicode allocation block that contains the character.
 *
 * @param c the code point to be tested
 * @return the block value (UBlockCode) for c
 *
 * @see UBlockCode
 * @stable ICU 2.0
 */
U_STABLE UBlockCode U_EXPORT2
ublock_getCode(UChar32 c);

/**
 * Retrieve the name of a Unicode character.
 * Depending on <code>nameChoice</code>, 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.
 *
 * @param code The character (code point) for which to get the name.
 *             It must be <code>0<=code<=0x10ffff</code>.
 * @param nameChoice Selector for which name to get.
 * @param buffer Destination 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.
 * @param bufferLength <code>==sizeof(buffer)</code>
 * @param pErrorCode Pointer to a UErrorCode variable;
 *        check for <code>U_SUCCESS()</code> after <code>u_charName()</code>
 *        returns.
 * @return 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 UCharNameChoice
 * @see u_charFromName
 * @see u_enumCharNames
 * @stable ICU 2.0
 */
U_STABLE int32_t U_EXPORT2
u_charName(UChar32 code, UCharNameChoice nameChoice,
           char *buffer, int32_t bufferLength,
           UErrorCode *pErrorCode);

#ifndef U_HIDE_DEPRECATED_API
/**
 * 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.
 *
 * @param c The character (code point) for which to get the ISO comment.
 *             It must be <code>0<=c<=0x10ffff</code>.
 * @param dest Destination 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.
 * @param destCapacity <code>==sizeof(dest)</code>
 * @param pErrorCode Pointer to a UErrorCode variable;
 *        check for <code>U_SUCCESS()</code> after <code>u_getISOComment()</code>
 *        returns.
 * @return 0
 *
 * @deprecated ICU 49
 */
U_DEPRECATED int32_t U_EXPORT2
u_getISOComment(UChar32 c,
                char *dest, int32_t destCapacity,
                UErrorCode *pErrorCode);
#endif  /* U_HIDE_DEPRECATED_API */

/**
 * 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, <i>pErrorCode</i>
 * is set to <code>U_INVALID_CHAR_FOUND</code>.
 * 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.
 *
 * @param nameChoice Selector for which name to match.
 * @param name The name to match.
 * @param pErrorCode Pointer to a UErrorCode variable
 * @return The Unicode value of the code point with the given name,
 *         or an undefined value if there is no such code point.
 *
 * @see UCharNameChoice
 * @see u_charName
 * @see u_enumCharNames
 * @stable ICU 1.7
 */
U_STABLE UChar32 U_EXPORT2
u_charFromName(UCharNameChoice nameChoice,
               const char *name,
               UErrorCode *pErrorCode);

/**
 * 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.
 *
 * @param context The context pointer that was passed to u_enumCharNames().
 * @param code The Unicode code point for the character with this name.
 * @param nameChoice Selector for which kind of names is enumerated.
 * @param name The character's name, zero-terminated.
 * @param length The length of the name.
 * @return TRUE if the enumeration should continue, FALSE to stop it.
 *
 * @see UCharNameChoice
 * @see u_enumCharNames
 * @stable ICU 1.7
 */
typedef UBool U_CALLCONV UEnumCharNamesFn(void *context,
                               UChar32 code,
                               UCharNameChoice nameChoice,
                               const char *name,
                               int32_t length);

/**
 * 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.
 *
 * @param start The first code point in the enumeration range.
 * @param limit One more than the last code point in the enumeration range
 *              (the first one after the range).
 * @param fn The function that is to be called for each character name.
 * @param context An arbitrary pointer that is passed to the function.
 * @param nameChoice Selector for which kind of names to enumerate.
 * @param pErrorCode Pointer to a UErrorCode variable
 *
 * @see UCharNameChoice
 * @see UEnumCharNamesFn
 * @see u_charName
 * @see u_charFromName
 * @stable ICU 1.7
 */
U_STABLE void U_EXPORT2
u_enumCharNames(UChar32 start, UChar32 limit,
                UEnumCharNamesFn *fn,
                void *context,
                UCharNameChoice nameChoice,
                UErrorCode *pErrorCode);

/**
 * 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.
 *
 * @param property UProperty selector other than UCHAR_INVALID_CODE.
 *         If out of range, NULL is returned.
 *
 * @param nameChoice selector 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,...
 *
 * @return 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 UProperty
 * @see UPropertyNameChoice
 * @stable ICU 2.4
 */
U_STABLE const char* U_EXPORT2
u_getPropertyName(UProperty property,
                  UPropertyNameChoice nameChoice);

/**
 * 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.
 *
 * @param alias the property name to be matched.  The name is compared
 *         using "loose matching" as described in PropertyAliases.txt.
 *
 * @return a UProperty enum, or UCHAR_INVALID_CODE if the given name
 *         does not match any property.
 *
 * @see UProperty
 * @stable ICU 2.4
 */
U_STABLE UProperty U_EXPORT2
u_getPropertyEnum(const char* alias);

/**
 * 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".
 *
 * @param property UProperty 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.
 *
 * @param value selector 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.
 *
 * @param nameChoice selector 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,...

 * @return 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 UProperty
 * @see UPropertyNameChoice
 * @stable ICU 2.4
 */
U_STABLE const char* U_EXPORT2
u_getPropertyValueName(UProperty property,
                       int32_t value,
                       UPropertyNameChoice nameChoice);

/**
 * 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".
 *
 * @param property UProperty 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.
 *
 * @param alias the value name to be matched.  The name is compared
 *         using "loose matching" as described in
 *         PropertyValueAliases.txt.
 *
 * @return 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 UProperty
 * @stable ICU 2.4
 */
U_STABLE int32_t U_EXPORT2
u_getPropertyValueEnum(UProperty property,
                       const char* alias);

/**
 * Determines if the specified character is permissible as the
 * first character in an identifier according to Unicode
 * (The Unicode Standard, Version 3.0, chapter 5.16 Identifiers).
 * True for characters with general categories "L" (letters) and "Nl" (letter numbers).
 *
 * Same as java.lang.Character.isUnicodeIdentifierStart().
 * Same as UCHAR_ID_START
 *
 * @param c the code point to be tested
 * @return TRUE if the code point may start an identifier
 *
 * @see UCHAR_ID_START
 * @see u_isalpha
 * @see u_isIDPart
 * @stable ICU 2.0
 */
U_STABLE UBool U_EXPORT2
u_isIDStart(UChar32 c);

/**
 * Determines if the specified character is permissible
 * in an identifier according to Java.
 * True for characters with general categories "L" (letters),
 * "Nl" (letter numbers), "Nd" (decimal digits),
 * "Mc" and "Mn" (combining marks), "Pc" (connecting punctuation), and
 * u_isIDIgnorable(c).
 *
 * Same as java.lang.Character.isUnicodeIdentifierPart().
 * Almost the same as Unicode's ID_Continue (UCHAR_ID_CONTINUE)
 * except that Unicode recommends to ignore Cf which is less than
 * u_isIDIgnorable(c).
 *
 * @param c the code point to be tested
 * @return TRUE if the code point may occur in an identifier according to Java
 *
 * @see UCHAR_ID_CONTINUE
 * @see u_isIDStart
 * @see u_isIDIgnorable
 * @stable ICU 2.0
 */
U_STABLE UBool U_EXPORT2
u_isIDPart(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).
 *
 * @param c the code point to be tested
 * @return TRUE if the code point is ignorable in identifiers according to Java
 *
 * @see UCHAR_DEFAULT_IGNORABLE_CODE_POINT
 * @see u_isIDStart
 * @see u_isIDPart
 * @stable ICU 2.0
 */
U_STABLE UBool U_EXPORT2
u_isIDIgnorable(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().
 *
 * @param c the code point to be tested
 * @return TRUE if the code point may start a Java identifier
 *
 * @see     u_isJavaIDPart
 * @see     u_isalpha
 * @see     u_isIDStart
 * @stable ICU 2.0
 */
U_STABLE UBool U_EXPORT2
u_isJavaIDStart(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().
 *
 * @param c the code point to be tested
 * @return TRUE if the code point may occur in a Java identifier
 *
 * @see     u_isIDIgnorable
 * @see     u_isJavaIDStart
 * @see     u_isalpha
 * @see     u_isdigit
 * @see     u_isIDPart
 * @stable ICU 2.0
 */
U_STABLE UBool U_EXPORT2
u_isJavaIDPart(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:
 * http://icu-project.org/userguide/posix.html#case_mappings
 *
 * @param c the code point to be mapped
 * @return the Simple_Lowercase_Mapping of the code point, if any;
 *         otherwise the code point itself.
 * @stable ICU 2.0
 */
U_STABLE UChar32 U_EXPORT2
u_tolower(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:
 * http://icu-project.org/userguide/posix.html#case_mappings
 *
 * @param c the code point to be mapped
 * @return the Simple_Uppercase_Mapping of the code point, if any;
 *         otherwise the code point itself.
 * @stable ICU 2.0
 */
U_STABLE UChar32 U_EXPORT2
u_toupper(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:
 * http://icu-project.org/userguide/posix.html#case_mappings
 *
 * @param c the code point to be mapped
 * @return the Simple_Titlecase_Mapping of the code point, if any;
 *         otherwise the code point itself.
 * @stable ICU 2.0
 */
U_STABLE UChar32 U_EXPORT2
u_totitle(UChar32 c);

/**
 * 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:
 * http://icu-project.org/userguide/posix.html#case_mappings
 *
 * @param c the code point to be mapped
 * @param options Either U_FOLD_CASE_DEFAULT or U_FOLD_CASE_EXCLUDE_SPECIAL_I
 * @return the Simple_Case_Folding of the code point, if any;
 *         otherwise the code point itself.
 * @stable ICU 2.0
 */
U_STABLE UChar32 U_EXPORT2
u_foldCase(UChar32 c, uint32_t options);

/**
 * Returns the decimal digit value of the code point in the
 * specified radix.
 *
 * If the radix is not in the range <code>2<=radix<=36</code> or if the
 * value of <code>c</code> is not a valid digit in the specified
 * radix, <code>-1</code> is returned. A character is a valid digit
 * if at least one of the following is true:
 * <ul>
 * <li>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.</li>
 * <li>The character is one of the uppercase Latin letters
 *     <code>'A'</code> through <code>'Z'</code>.
 *     In this case the value is <code>c-'A'+10</code>.</li>
 * <li>The character is one of the lowercase Latin letters
 *     <code>'a'</code> through <code>'z'</code>.
 *     In this case the value is <code>ch-'a'+10</code>.</li>
 * <li>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.</li>
 * </ul>
 *
 * Same as java.lang.Character.digit().
 *
 * @param   ch      the code point to be tested.
 * @param   radix   the radix.
 * @return  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     UCHAR_NUMERIC_TYPE
 * @see     u_forDigit
 * @see     u_charDigitValue
 * @see     u_isdigit
 * @stable ICU 2.0
 */
U_STABLE int32_t U_EXPORT2
u_digit(UChar32 ch, int8_t radix);

/**
 * Determines the character representation for a specific digit in
 * the specified radix. If the value of <code>radix</code> is not a
 * valid radix, or the value of <code>digit</code> is not a valid
 * digit in the specified radix, the null character
 * (<code>U+0000</code>) is returned.
 * <p>
 * The <code>radix</code> argument is valid if it is greater than or
 * equal to 2 and less than or equal to 36.
 * The <code>digit</code> argument is valid if
 * <code>0 <= digit < radix</code>.
 * <p>
 * If the digit is less than 10, then
 * <code>'0' + digit</code> is returned. Otherwise, the value
 * <code>'a' + digit - 10</code> is returned.
 *
 * Same as java.lang.Character.forDigit().
 *
 * @param   digit   the number to convert to a character.
 * @param   radix   the radix.
 * @return  the <code>char</code> representation of the specified digit
 *          in the specified radix.
 *
 * @see     u_digit
 * @see     u_charDigitValue
 * @see     u_isdigit
 * @stable ICU 2.0
 */
U_STABLE UChar32 U_EXPORT2
u_forDigit(int32_t digit, int8_t radix);

/**
 * 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.
 *
 * @param c The code point.
 * @param versionArray The Unicode version number array, to be filled in.
 *
 * @stable ICU 2.1
 */
U_STABLE void U_EXPORT2
u_charAge(UChar32 c, 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 }.
 *
 * @param versionArray an output array that will be filled in with
 *                     the Unicode version number
 * @stable ICU 2.0
 */
U_STABLE void U_EXPORT2
u_getUnicodeVersion(UVersionInfo versionArray);

#if !UCONFIG_NO_NORMALIZATION
/**
 * 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/
 *
 * @param c The character (code point) for which to get the FC_NFKC_Closure string.
 *             It must be <code>0<=c<=0x10ffff</code>.
 * @param dest Destination 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.
 * @param destCapacity <code>==sizeof(dest)</code>
 * @param pErrorCode Pointer to a UErrorCode variable.
 * @return 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_STABLE int32_t U_EXPORT2
u_getFC_NFKC_Closure(UChar32 c, UChar *dest, int32_t destCapacity, UErrorCode *pErrorCode);

#endif


U_CDECL_END

#endif /*_UCHAR*/
/*eof*/
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