| /* |
| ******************************************************************************** |
| * * |
| * COPYRIGHT: * |
| * (C) Copyright Taligent, Inc., 1997 * |
| * (C) Copyright International Business Machines Corporation, 1997-1998 * |
| * Licensed Material - Program-Property of IBM - All Rights Reserved. * |
| * US Government Users Restricted Rights - Use, duplication, or disclosure * |
| * restricted by GSA ADP Schedule Contract with IBM Corp. * |
| * * |
| ******************************************************************************** |
| * |
| * 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 |
| ******************************************************************************** |
| */ |
| |
| #ifndef UCHAR_H |
| #define UCHAR_H |
| |
| #include "utypes.h" |
| /*===========================================================================*/ |
| /* Unicode version number */ |
| /*===========================================================================*/ |
| #define UNICODE_VERSION "3.0.0.beta" |
| |
| /** |
| * The Unicode C API allows you to query the properties associated with individual |
| * Unicode character values. |
| * <p> |
| * The Unicode character information, provided implicitly by the |
| * Unicode character encoding standard, includes information about the script |
| * (for example, symbols or control characters) to which the character belongs, |
| * as well as semantic information such as whether a character is a digit or |
| * uppercase, lowercase, or uncased. |
| * <P> |
| */ |
| |
| |
| struct UCharDigitPair{ |
| uint16_t fUnicode; |
| int8_t fValue; |
| }; |
| typedef struct UCharDigitPair UCharDigitPair; |
| struct BlockScriptMap { |
| UChar fFirstCode; |
| UChar fLastCode; |
| }; |
| typedef struct BlockScriptMap BlockScriptMap; |
| |
| |
| |
| |
| static bool_t tablesCreated=FALSE; |
| static bool_t ulTablesCreated=FALSE; |
| static bool_t dirTablesCreated=FALSE; |
| static void createTables(void); |
| static void createUlTables(void); |
| static void createDirTables(void); |
| /** |
| * The Unicode C API allows you to query the properties associated with individual |
| * Unicode character values. |
| * <p> |
| * The Unicode character information, provided implicitly by the |
| * Unicode character encoding standard, includes information about the script |
| * (for example, symbols or control characters) to which the character belongs, |
| * as well as semantic information such as whether a character is a digit or |
| * uppercase, lowercase, or uncased. |
| * <P> |
| */ |
| |
| /** |
| * Constants. |
| */ |
| |
| /** |
| * The minimum value a UChar can have. The lowest value a |
| * UChar can have is 0x0000. |
| */ |
| static UChar UCHAR_MIN_VALUE; |
| /** |
| * The maximum value a UChar can have. The greatest value a |
| * UChar can have is 0xffff. |
| */ |
| |
| static UChar UCHAR_MAX_VALUE; |
| /** |
| * Data for enumerated Unicode general category types |
| */ |
| |
| |
| enum UCharCategory |
| { |
| UNASSIGNED = 0, |
| UPPERCASE_LETTER = 1, |
| LOWERCASE_LETTER = 2, |
| TITLECASE_LETTER = 3, |
| MODIFIER_LETTER = 4, |
| OTHER_LETTER = 5, |
| NON_SPACING_MARK = 6, |
| ENCLOSING_MARK = 7, |
| COMBINING_SPACING_MARK = 8, |
| DECIMAL_DIGIT_NUMBER = 9, |
| LETTER_NUMBER = 10, |
| OTHER_NUMBER = 11, |
| SPACE_SEPARATOR = 12, |
| LINE_SEPARATOR = 13, |
| PARAGRAPH_SEPARATOR = 14, |
| CONTROL = 15, |
| FORMAT = 16, |
| PRIVATE_USE = 17, |
| SURROGATE = 18, |
| DASH_PUNCTUATION = 19, |
| START_PUNCTUATION = 20, |
| END_PUNCTUATION = 21, |
| CONNECTOR_PUNCTUATION = 22, |
| OTHER_PUNCTUATION = 23, |
| MATH_SYMBOL = 24, |
| CURRENCY_SYMBOL = 25, |
| MODIFIER_SYMBOL = 26, |
| OTHER_SYMBOL = 27, |
| INITIAL_PUNCTUATION = 28, |
| FINAL_PUNCTUATION = 29, |
| GENERAL_OTHER_TYPES = 30 |
| |
| }; |
| |
| typedef enum UCharCategory UCharCategory; |
| /** |
| * This specifies the language directional property of a character set. |
| */ |
| |
| enum UCharDirection { |
| LEFT_TO_RIGHT = 0, |
| RIGHT_TO_LEFT = 1, |
| EUROPEAN_NUMBER = 2, |
| EUROPEAN_NUMBER_SEPARATOR = 3, |
| EUROPEAN_NUMBER_TERMINATOR = 4, |
| ARABIC_NUMBER = 5, |
| COMMON_NUMBER_SEPARATOR = 6, |
| BLOCK_SEPARATOR = 7, |
| SEGMENT_SEPARATOR = 8, |
| WHITE_SPACE_NEUTRAL = 9, |
| OTHER_NEUTRAL = 10, |
| LEFT_TO_RIGHT_EMBEDDING = 11, |
| LEFT_TO_RIGHT_OVERRIDE = 12, |
| RIGHT_TO_LEFT_ARABIC = 13, |
| RIGHT_TO_LEFT_EMBEDDING = 14, |
| RIGHT_TO_LEFT_OVERRIDE = 15, |
| POP_DIRECTIONAL_FORMAT = 16, |
| DIR_NON_SPACING_MARK = 17, |
| BOUNDARY_NEUTRAL = 18 |
| |
| |
| }; |
| |
| typedef enum UCharDirection UCharDirection; |
| /** |
| * Script range as defined in the Unicode standard. |
| */ |
| |
| /* Generated from Unicode Data files */ |
| enum UCharScript { |
| /* Script names */ |
| BASIC_LATIN, |
| LATIN_1_SUPPLEMENT, |
| LATIN_EXTENDED_A, |
| LATIN_EXTENDED_B, |
| IPA_EXTENSIONS, |
| SPACING_MODIFIER_LETTERS, |
| COMBINING_DIACRITICAL_MARKS, |
| GREEK, |
| CYRILLIC, |
| ARMENIAN, |
| HEBREW, |
| ARABIC, |
| SYRIAC, |
| THAANA, |
| DEVANAGARI, |
| BENGALI, |
| GURMUKHI, |
| GUJARATI, |
| ORIYA, |
| TAMIL, |
| TELUGU, |
| KANNADA, |
| MALAYALAM, |
| SINHALA, |
| THAI, |
| LAO, |
| TIBETAN, |
| MYANMAR, |
| GEORGIAN, |
| HANGUL_JAMO, |
| ETHIOPIC, |
| CHEROKEE, |
| UNIFIED_CANADIAN_ABORIGINAL_SYLLABICS, |
| OGHAM, |
| RUNIC, |
| KHMER, |
| MONGOLIAN, |
| LATIN_EXTENDED_ADDITIONAL, |
| GREEK_EXTENDED, |
| GENERAL_PUNCTUATION, |
| SUPERSCRIPTS_AND_SUBSCRIPTS, |
| CURRENCY_SYMBOLS, |
| COMBINING_MARKS_FOR_SYMBOLS, |
| LETTERLIKE_SYMBOLS, |
| NUMBER_FORMS, |
| ARROWS, |
| MATHEMATICAL_OPERATORS, |
| MISCELLANEOUS_TECHNICAL, |
| CONTROL_PICTURES, |
| OPTICAL_CHARACTER_RECOGNITION, |
| ENCLOSED_ALPHANUMERICS, |
| BOX_DRAWING, |
| BLOCK_ELEMENTS, |
| GEOMETRIC_SHAPES, |
| MISCELLANEOUS_SYMBOLS, |
| DINGBATS, |
| BRAILLE_PATTERNS, |
| CJK_RADICALS_SUPPLEMENT, |
| KANGXI_RADICALS, |
| IDEOGRAPHIC_DESCRIPTION_CHARACTERS, |
| CJK_SYMBOLS_AND_PUNCTUATION, |
| HIRAGANA, |
| KATAKANA, |
| BOPOMOFO, |
| HANGUL_COMPATIBILITY_JAMO, |
| KANBUN, |
| BOPOMOFO_EXTENDED, |
| ENCLOSED_CJK_LETTERS_AND_MONTHS, |
| CJK_COMPATIBILITY, |
| CJK_UNIFIED_IDEOGRAPHS_EXTENSION_A, |
| CJK_UNIFIED_IDEOGRAPHS, |
| YI_SYLLABLES, |
| YI_RADICALS, |
| HANGUL_SYLLABLES, |
| HIGH_SURROGATES, |
| HIGH_PRIVATE_USE_SURROGATES, |
| LOW_SURROGATES, |
| PRIVATE_USE_AREA, /* PRIVATE_USE */ |
| CJK_COMPATIBILITY_IDEOGRAPHS, |
| ALPHABETIC_PRESENTATION_FORMS, |
| ARABIC_PRESENTATION_FORMS_A, |
| COMBINING_HALF_MARKS, |
| CJK_COMPATIBILITY_FORMS, |
| SMALL_FORM_VARIANTS, |
| ARABIC_PRESENTATION_FORMS_B, |
| SPECIALS, |
| HALFWIDTH_AND_FULLWIDTH_FORMS, |
| SCRIPT_COUNT, |
| NO_SCRIPT, |
| |
| |
| /* Enums for compatibility with ICU 1.2.4 and previous */ |
| LATIN1_SUPPLEMENT=LATIN_1_SUPPLEMENT, |
| IPA_EXTENSION=IPA_EXTENSIONS, |
| SPACING_MODIFIER=SPACING_MODIFIER_LETTERS, |
| COMBINING_DIACRITICAL=COMBINING_DIACRITICAL_MARKS, |
| SUPER_SUBSCRIPT=SUPERSCRIPTS_AND_SUBSCRIPTS, |
| CURRENCY_SYMBOL_SCRIPT=CURRENCY_SYMBOLS, |
| SYMBOL_COMBINING_MARK=COMBINING_MARKS_FOR_SYMBOLS, |
| LETTERLIKE_SYMBOL=LETTERLIKE_SYMBOLS, |
| NUMBER_FORM=NUMBER_FORMS, |
| ARROW=ARROWS, |
| MATH_OPERATOR=MATHEMATICAL_OPERATORS, |
| MISC_TECHNICAL=MISCELLANEOUS_TECHNICAL, |
| CONTROL_PICTURE=CONTROL_PICTURES, |
| OPTICAL_CHARACTER=OPTICAL_CHARACTER_RECOGNITION, |
| ENCLOSED_ALPHANUMERIC=ENCLOSED_ALPHANUMERICS, |
| BOXDRAWING=BOX_DRAWING, |
| BLOCK_ELEMENT=BLOCK_ELEMENTS, |
| GEOMETRIC_SHAPE=GEOMETRIC_SHAPES, |
| MISC_SYMBOL=MISCELLANEOUS_SYMBOLS, |
| DINGBAT=DINGBATS, |
| CJK_SYMBOL_PUNCTUATION=CJK_SYMBOLS_AND_PUNCTUATION, |
| ENCLOSED_CJK_LETTER_MONTH=ENCLOSED_CJK_LETTERS_AND_MONTHS, |
| CJK_UNIFIED_IDEOGRAPH=CJK_UNIFIED_IDEOGRAPHS, |
| HANGUL_SYLLABLE=HANGUL_SYLLABLES, |
| HIGH_SURROGATE=HIGH_SURROGATES, |
| HIGH_PRIVATE_USE_SURROGATE=HIGH_PRIVATE_USE_SURROGATES, |
| LOW_SURROGATE=LOW_SURROGATES, |
| PRIVATE_USE_CHARACTERS=PRIVATE_USE_AREA, |
| CJK_COMPATIBILITY_IDEOGRAPH=CJK_COMPATIBILITY_IDEOGRAPHS, |
| ALPHABETIC_PRESENTATION=ALPHABETIC_PRESENTATION_FORMS, |
| ARABIC_PRESENTATION_A=ARABIC_PRESENTATION_FORMS_A, |
| COMBINING_HALFMARK=COMBINING_HALF_MARKS, |
| CJK_COMPATIBILITY_FORM=CJK_COMPATIBILITY_FORMS, |
| SMALL_FORM_VARIANT=SMALL_FORM_VARIANTS, |
| ARABIC_PRESENTATION_B=ARABIC_PRESENTATION_FORMS_B, |
| HALFWIDTH_FULLWIDTH_FORM=HALFWIDTH_AND_FULLWIDTH_FORMS |
| }; |
| typedef enum UCharScript UCharScript; |
| |
| /** |
| * Values returned by the u_getCellWidth() function. |
| */ |
| enum UCellWidth |
| { |
| ZERO_WIDTH = 0, |
| HALF_WIDTH = 1, |
| FULL_WIDTH = 2, |
| NEUTRAL = 3 |
| }; |
| |
| typedef enum UCellWidth UCellWidth; |
| /** |
| * Functions to classify characters. |
| */ |
| |
| /** |
| * Determines whether the specified UChar is a lowercase character |
| * according to Unicode 2.1.2. |
| * |
| * @param ch the character to be tested |
| * @return true if the character is lowercase; false otherwise. |
| * @see UNICODE_VERSION |
| * @see uisupper() |
| * @see uistitle() |
| * @see uislower() |
| */ |
| CAPI bool_t U_EXPORT2 |
| u_islower(UChar c); |
| |
| /** |
| * Determines whether the specified character is an uppercase character |
| * according to Unicode 2.1.2. |
| * |
| * @param ch the character to be tested |
| * @return true if the character is uppercase; false otherwise. |
| * @see uislower() |
| * @see uistitle |
| * @see utolower() |
| */ |
| CAPI bool_t U_EXPORT2 |
| u_isupper(UChar c); |
| |
| /** |
| * Determines whether the specified character is a titlecase character |
| * according to Unicode 2.1.2. |
| * |
| * @param ch the character to be tested |
| * @return true if the character is titlecase; false otherwise. |
| * @see uisupper() |
| * @see uislower() |
| * @see utotitle() |
| */ |
| CAPI bool_t U_EXPORT2 |
| u_istitle(UChar c); |
| |
| /** |
| * Determines whether the specified character is a digit according to Unicode |
| * 2.1.2. |
| * |
| * @param ch the character to be tested |
| * @return true if the character is a digit; false otherwise. |
| */ |
| CAPI bool_t U_EXPORT2 |
| u_isdigit(UChar c); |
| |
| /** |
| * Determines whether the specified numeric value is actually a defined character |
| * according to Unicode 2.1.2. |
| * |
| * @param ch the character to be tested |
| * @return true if the character has a defined Unicode meaning; false otherwise. |
| * |
| * @see uisdigit() |
| * @see uisalpha() |
| * @see uisalnum() |
| * @see uisupper() |
| * @see uislower() |
| * @see uistitle() |
| */ |
| CAPI bool_t U_EXPORT2 |
| u_isdefined(UChar c); |
| |
| /** |
| * Determines whether the specified character is a letter |
| * according to Unicode 2.1.2. |
| * |
| * @param ch the character to be tested |
| * @return true if the character is a letter; false otherwise. |
| * |
| * @see uisdigit() |
| * @see uisalnum() |
| */ |
| CAPI bool_t U_EXPORT2 |
| u_isalpha(UChar c); |
| |
| /** |
| * Determines if the specified character is a space character or not. |
| * |
| * @param ch the character to be tested |
| * @return true if the character is a space character; false otherwise. |
| */ |
| CAPI bool_t U_EXPORT2 |
| u_isspace(UChar c); |
| |
| /** |
| * Determines whether the specified character is a control character or not. |
| * |
| * @param ch the character to be tested |
| * @return true if the Unicode character is a control character; false otherwise. |
| * |
| * @see uisprint() |
| */ |
| CAPI bool_t U_EXPORT2 |
| u_iscntrl(UChar c); |
| |
| |
| /** |
| * Determines whether the specified character is a printable character according |
| * to Unicode 2.1.2. |
| * |
| * @param ch the character to be tested |
| * @return true if the Unicode character is a printable character; false otherwise. |
| * |
| * @see uiscntrl() |
| */ |
| CAPI bool_t U_EXPORT2 |
| u_isprint(UChar c); |
| |
| /** |
| * Determines whether the specified character is of the base form according |
| * to Unicode 2.1.2. |
| * |
| * @param ch the character to be tested |
| * @return true if the Unicode character is of the base form; false otherwise. |
| * |
| * @see uisalpha() |
| * @see uisdigit() |
| */ |
| CAPI bool_t U_EXPORT2 |
| u_isbase(UChar c); |
| /** |
| * Returns the linguistic direction property of a character. |
| * <P> |
| * Returns the linguistic direction property of a character. |
| * For example, 0x0041 (letter A) has the LEFT_TO_RIGHT directional |
| * property. |
| * @see UCharDirection |
| */ |
| CAPI UCharDirection U_EXPORT2 |
| u_charDirection(UChar c); |
| |
| /** |
| * Returns a value indicating the display-cell width of the character |
| * when used in Asian text, according to the Unicode standard (see p. 6-130 |
| * of The Unicode Standard, Version 2.0). The results for various characters |
| * are as follows: |
| * <P> |
| * ZERO_WIDTH: Characters which are considered to take up no display-cell space: |
| * control characters |
| * format characters |
| * line and paragraph separators |
| * non-spacing marks |
| * combining Hangul jungseong |
| * combining Hangul jongseong |
| * unassigned Unicode values |
| * <P> |
| * HALF_WIDTH: Characters which take up half a cell in standard Asian text: |
| * all characters in the General Scripts Area except combining Hangul choseong |
| * and the characters called out specifically above as ZERO_WIDTH |
| * alphabetic and Arabic presentation forms |
| * halfwidth CJK punctuation |
| * halfwidth Katakana |
| * halfwidth Hangul Jamo |
| * halfwidth forms, arrows, and shapes |
| * <P> |
| * FULL_WIDTH: Characters which take up a full cell in standard Asian text: |
| * combining Hangul choseong |
| * all characters in the CJK Phonetics and Symbols Area |
| * all characters in the CJK Ideographs Area |
| * all characters in the Hangul Syllables Area |
| * CJK compatibility ideographs |
| * CJK compatibility forms |
| * small form variants |
| * fullwidth ASCII |
| * fullwidth punctuation and currency signs |
| * <P> |
| * NEUTRAL: Characters whose cell width is context-dependent: |
| * all characters in the Symbols Area, except those specifically called out above |
| * all characters in the Surrogates Area |
| * all charcaters in the Private Use Area |
| * <P> |
| * For Korean text, this algorithm should work properly with properly normalized Korean |
| * text. Precomposed Hangul syllables and non-combining jamo are all considered full- |
| * width characters. For combining jamo, we treat we treat choseong (initial consonants) |
| * as double-width characters and junseong (vowels) and jongseong (final consonants) |
| * as non-spacing marks. This will work right in text that uses the precomposed |
| * choseong characters instead of teo choseong characters in a row, and which uses the |
| * choseong filler character at the beginning of syllables that don't have an initial |
| * consonant. The results may be slightly off with Korean text following different |
| * conventions. |
| */ |
| CAPI uint16_t U_EXPORT2 |
| u_charCellWidth(UChar c); |
| |
| /** |
| * Returns a value indicating a character category according to Unicode |
| * 2.1.2. |
| * @param c the character to be tested |
| * @return a value of type int, the character category. |
| * @see UCharCategory |
| */ |
| CAPI int8_t U_EXPORT2 |
| u_charType(UChar c); |
| |
| /** |
| * Retrives the decimal numeric value of a digit character. |
| * @param c the digit character for which to get the numeric value |
| * @return the numeric value of ch in decimal radix. This method returns |
| * -1 if ch is not a valid digit character. |
| */ |
| CAPI int32_t U_EXPORT2 |
| u_charDigitValue(UChar c); |
| |
| /** |
| * |
| * Returns the script associated with a character. |
| * @see #UCharScript |
| */ |
| CAPI UCharScript U_EXPORT2 |
| u_charScript(UChar ch); |
| |
| /** |
| * The following functions are java specific. |
| */ |
| /** |
| * A convenience method for determining if a Unicode character |
| * is allowed to start in a Unicode identifier. |
| * A character may start a Unicode identifier if and only if |
| * it is a letter. |
| * |
| * @param c the Unicode character. |
| * @return TRUE if the character may start a Unicode identifier; |
| * FALSE otherwise. |
| * @see u_isalpha |
| * @see u_isIDPart |
| */ |
| CAPI bool_t U_EXPORT2 |
| u_isIDStart(UChar c); |
| /** |
| * A convenience method for determining if a Unicode character |
| * may be part of a Unicode identifier other than the starting |
| * character. |
| * <P> |
| * A character may be part of a Unicode identifier if and only if |
| * it is one of the following: |
| * <ul> |
| * <li> a letter |
| * <li> a connecting punctuation character (such as "_"). |
| * <li> a digit |
| * <li> a numeric letter (such as a Roman numeral character) |
| * <li> a combining mark |
| * <li> a non-spacing mark |
| * <li> an ignorable control character |
| * </ul> |
| * |
| * @param c the Unicode character. |
| * @return TRUE if the character may be part of a Unicode identifier; |
| * FALSE otherwise. |
| * @see u_isIDIgnorable |
| * @see u_isIDStart |
| */ |
| CAPI bool_t U_EXPORT2 |
| u_isIDPart(UChar c); |
| /** |
| * A convenience method for determining if a Unicode character |
| * should be regarded as an ignorable character |
| * in a Unicode identifier. |
| * <P> |
| * The following Unicode characters are ignorable in a |
| * Unicode identifier: |
| * <table> |
| * <tr><td>0x0000 through 0x0008,</td> |
| * <td>ISO control characters that</td></tr> |
| * <tr><td>0x000E through 0x001B,</td> <td>are not whitespace</td></tr> |
| * <tr><td>and 0x007F through 0x009F</td></tr> |
| * <tr><td>0x200C through 0x200F</td> <td>join controls</td></tr> |
| * <tr><td>0x200A through 0x200E</td> <td>bidirectional controls</td></tr> |
| * <tr><td>0x206A through 0x206F</td> <td>format controls</td></tr> |
| * <tr><td>0xFEFF</td> <td>zero-width no-break space</td></tr> |
| * </table> |
| * |
| * @param c the Unicode character. |
| * @return TRUE if the character may be part of a Unicode identifier; |
| * FALSE otherwise. |
| * @see u_isIDPart |
| */ |
| CAPI bool_t U_EXPORT2 |
| u_isIDIgnorable(UChar c); |
| /** |
| * A convenience method for determining if a Unicode character |
| * is allowed as the first character in a Java identifier. |
| * <P> |
| * A character may start a Java identifier if and only if |
| * it is one of the following: |
| * <ul> |
| * <li> a letter |
| * <li> a currency symbol (such as "$") |
| * <li> a connecting punctuation symbol (such as "_"). |
| * </ul> |
| * |
| * @param c the Unicode character. |
| * @return TRUE if the character may start a Java identifier; |
| * FALSE otherwise. |
| * @see u_isJavaIDPart |
| * @see u_isalpha |
| * @see u_isIDStart |
| */ |
| CAPI bool_t U_EXPORT2 |
| u_isJavaIDStart(UChar c); |
| /** |
| * A convenience method for determining if a Unicode character |
| * may be part of a Java identifier other than the starting |
| * character. |
| * <P> |
| * A character may be part of a Java identifier if and only if |
| * it is one of the following: |
| * <ul> |
| * <li> a letter |
| * <li> a currency symbol (such as "$") |
| * <li> a connecting punctuation character (such as "_"). |
| * <li> a digit |
| * <li> a numeric letter (such as a Roman numeral character) |
| * <li> a combining mark |
| * <li> a non-spacing mark |
| * <li> an ignorable control character |
| * </ul> |
| * |
| * @param c the Unicode character. |
| * @return TRUE if the character may be part of a Unicode identifier; |
| * FALSE otherwise. |
| * @see u_isIDIgnorable |
| * @see u_isJavaIDStart |
| * @see u_isalpha |
| * @see u_isdigit |
| * @see u_isIDPart |
| */ |
| |
| CAPI bool_t U_EXPORT2 |
| u_isJavaIDPart(UChar c); |
| |
| /** |
| * Functions to change character case. |
| */ |
| |
| /** |
| * The given character is mapped to its lowercase equivalent according to |
| * Unicode 2.1.2; if the character has no lowercase equivalent, the character |
| * itself is returned. |
| * <P> |
| * A character has a lowercase equivalent if and only if a lowercase mapping |
| * is specified for the character in the Unicode 2.1.2 attribute table. |
| * <P> |
| * utolower() only deals with the general letter case conversion. |
| * For language specific case conversion behavior, use ustrToUpper(). |
| * For example, the case conversion for dot-less i and dotted I in Turkish, |
| * or for final sigma in Greek. |
| * |
| * @param ch the character to be converted |
| * @return the lowercase equivalent of the character, if any; |
| * otherwise the character itself. |
| */ |
| CAPI UChar U_EXPORT2 |
| u_tolower(UChar c); |
| |
| /** |
| * The given character is mapped to its uppercase equivalent according to Unicode |
| * 2.1.2; if the character has no uppercase equivalent, the character itself is |
| * returned. |
| * <P> |
| * utoupper() only deals with the general letter case conversion. |
| * For language specific case conversion behavior, use ustrToUpper(). |
| * For example, the case conversion for dot-less i and dotted I in Turkish, |
| * or ess-zed (i.e., "sharp S") in German. |
| * |
| * @param ch the character to be converted |
| * @return the uppercase equivalent of the character, if any; |
| * otherwise the character itself. |
| */ |
| CAPI UChar U_EXPORT2 |
| u_toupper(UChar c); |
| /** |
| * The given character is mapped to its titlecase equivalent according to Unicode |
| * 2.1.2. There are only four Unicode characters that are truly titlecase forms |
| * that are distinct from uppercase forms. As a rule, if a character has no |
| * true titlecase equivalent, its uppercase equivalent is returned. |
| * <P> |
| * A character has a titlecase equivalent if and only if a titlecase mapping |
| * is specified for the character in the Unicode 2.1.2 data. |
| * |
| * @param ch the character to be converted |
| * @return the titlecase equivalent of the character, if any; |
| * otherwise the character itself. |
| */ |
| CAPI UChar U_EXPORT2 |
| u_totitle(UChar c); |
| |
| /** |
| * |
| *The function is used to get the Unicode standard Version that is used |
| *@return the Unicode stabdard Version number |
| */ |
| CAPI const char* U_EXPORT2 |
| u_getVersion(void); |
| |
| #endif /*_UCHAR*/ |
| /*eof*/ |
