656 lines
22 KiB
C++
656 lines
22 KiB
C++
/*
|
|
*****************************************************************************************
|
|
* *
|
|
* COPYRIGHT: *
|
|
* (C) Copyright Taligent, Inc., 1996, 1997 *
|
|
* (C) Copyright International Business Machines Corporation, 1996- 1999 *
|
|
* 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. *
|
|
* *
|
|
*****************************************************************************************
|
|
*/
|
|
// Copyright (C) 1996-1997 Taligent, Inc. All rights reserved.
|
|
//
|
|
// FILE NAME : unicode.h
|
|
//
|
|
// CREATED
|
|
// Wednesday, December 11, 1996
|
|
//
|
|
// CREATED BY
|
|
// Helena Shih
|
|
//
|
|
// CHANGES
|
|
// Thursday, April 15, 1999
|
|
// Modified the definitions of all the functions
|
|
// C++ Wrappers for Unicode
|
|
// CHANGES BY
|
|
// Madhu Katragadda
|
|
// 5/20/99 Madhu Added the function getVersion()
|
|
//********************************************************************************************
|
|
|
|
|
|
|
|
#ifndef UNICODE_H
|
|
#define UNICODE_H
|
|
|
|
#include "utypes.h"
|
|
|
|
|
|
/**
|
|
* The Unicode class 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 sript
|
|
* (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>
|
|
* @subclassing Do not subclass.
|
|
*/
|
|
class U_COMMON_API Unicode
|
|
{
|
|
public:
|
|
/**
|
|
* The minimum value a UChar can have. The lowest value a
|
|
* UChar can have is 0x0000.
|
|
*/
|
|
static const UChar MIN_VALUE;
|
|
|
|
/**
|
|
* The maximum value a UChar can have. The greatest value a
|
|
* UChar can have is 0xffff.
|
|
*/
|
|
static const UChar MAX_VALUE;
|
|
|
|
/**
|
|
* Public data for enumerated Unicode general category types
|
|
*/
|
|
|
|
enum EUnicodeGeneralTypes
|
|
{
|
|
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_TYPES_COUNT = 30
|
|
};
|
|
|
|
enum EUnicodeScript
|
|
{
|
|
kBasicLatin,
|
|
kLatin1Supplement,
|
|
kLatinExtendedA,
|
|
kLatinExtendedB,
|
|
kIPAExtension,
|
|
kSpacingModifier,
|
|
kCombiningDiacritical,
|
|
kGreek,
|
|
kCyrillic,
|
|
kArmenian,
|
|
kHebrew,
|
|
kArabic,
|
|
kDevanagari,
|
|
kBengali,
|
|
kGurmukhi,
|
|
kGujarati,
|
|
kOriya,
|
|
kTamil,
|
|
kTelugu,
|
|
kKannada,
|
|
kMalayalam,
|
|
kThai,
|
|
kLao,
|
|
kTibetan,
|
|
kGeorgian,
|
|
kHangulJamo,
|
|
kLatinExtendedAdditional,
|
|
kGreekExtended,
|
|
kGeneralPunctuation,
|
|
kSuperSubScript,
|
|
kCurrencySymbolScript,
|
|
kSymbolCombiningMark,
|
|
kLetterlikeSymbol,
|
|
kNumberForm,
|
|
kArrow,
|
|
kMathOperator,
|
|
kMiscTechnical,
|
|
kControlPicture,
|
|
kOpticalCharacter,
|
|
kEnclosedAlphanumeric,
|
|
kBoxDrawing,
|
|
kBlockElement,
|
|
kGeometricShape,
|
|
kMiscSymbol,
|
|
kDingbat,
|
|
kCJKSymbolPunctuation,
|
|
kHiragana,
|
|
kKatakana,
|
|
kBopomofo,
|
|
kHangulCompatibilityJamo,
|
|
kKanbun,
|
|
kEnclosedCJKLetterMonth,
|
|
kCJKCompatibility,
|
|
kCJKUnifiedIdeograph,
|
|
kHangulSyllable,
|
|
kHighSurrogate,
|
|
kHighPrivateUseSurrogate,
|
|
kLowSurrogate,
|
|
kPrivateUse,
|
|
kCJKCompatibilityIdeograph,
|
|
kAlphabeticPresentation,
|
|
kArabicPresentationA,
|
|
kCombiningHalfMark,
|
|
kCJKCompatibilityForm,
|
|
kSmallFormVariant,
|
|
kArabicPresentationB,
|
|
kNoScript,
|
|
kHalfwidthFullwidthForm,
|
|
kScriptCount
|
|
};
|
|
|
|
/**
|
|
* This specifies the language directional property of a character set.
|
|
*/
|
|
enum EDirectionProperty {
|
|
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
|
|
};
|
|
|
|
/**
|
|
* Values returned by the getCellWidth() function.
|
|
* @see Unicode#getCellWidth
|
|
*/
|
|
enum ECellWidths
|
|
{
|
|
ZERO_WIDTH = 0,
|
|
HALF_WIDTH = 1,
|
|
FULL_WIDTH = 2,
|
|
NEUTRAL = 3
|
|
};
|
|
|
|
/**
|
|
* 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#isUpperCase
|
|
* @see Unicode#isTitleCase
|
|
* @see Unicode#toLowerCase
|
|
*/
|
|
static bool_t isLowerCase(UChar ch);
|
|
|
|
/**
|
|
* 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 Unicode#isLowerCase
|
|
* @see Unicode#isTitleCase
|
|
* @see Unicode#toUpperCase
|
|
*/
|
|
static bool_t isUpperCase(UChar ch);
|
|
|
|
/**
|
|
* 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 Unicode#isUpperCase
|
|
* @see Unicode#isLowerCase
|
|
* @see Unicode#toTitleCase
|
|
*/
|
|
static bool_t isTitleCase(UChar ch);
|
|
|
|
/**
|
|
* 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.
|
|
*/
|
|
static bool_t isDigit(UChar ch);
|
|
|
|
/**
|
|
* 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 Unicode#isDigit
|
|
* @see Unicode#isLetter
|
|
* @see Unicode#isLetterOrDigit
|
|
* @see Unicode#isUpperCase
|
|
* @see Unicode#isLowerCase
|
|
* @see Unicode#isTitleCase
|
|
*/
|
|
static bool_t isDefined(UChar ch);
|
|
|
|
/**
|
|
* Determines whether the specified character is a control character according
|
|
* to Unicode 2.1.2.
|
|
*
|
|
* @param ch the character to be tested
|
|
* @return true if the Unicode character is a control character; false otherwise.
|
|
*
|
|
* @see Unicode#isPrintable
|
|
*/
|
|
static bool_t isControl(UChar ch);
|
|
|
|
/**
|
|
* 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 Unicode#isControl
|
|
*/
|
|
static bool_t isPrintable(UChar ch);
|
|
|
|
/**
|
|
* 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 Unicode#isLetter
|
|
* @see Unicode#isDigit
|
|
*/
|
|
|
|
static bool_t isBaseForm(UChar ch);
|
|
/**
|
|
* 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 Unicode#isDigit
|
|
* @see Unicode#isLetterOrDigit
|
|
* @see Unicode#isUpperCase
|
|
* @see Unicode#isLowerCase
|
|
* @see Unicode#isTitleCase
|
|
*/
|
|
static bool_t isLetter(UChar ch);
|
|
|
|
/**
|
|
* 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 "$")
|
|
* <li> a connecting punctuation symbol (such as "_").
|
|
* </ul>
|
|
*
|
|
* @param ch the Unicode character.
|
|
* @return TRUE if the character may start a Java identifier;
|
|
* FALSE otherwise.
|
|
* @see isJavaIdentifierPart
|
|
* @see isLetter
|
|
* @see isUnicodeIdentifierStart
|
|
*/
|
|
static bool_t isJavaIdentifierStart(UChar ch);
|
|
|
|
/**
|
|
* A convenience method for determining if a Unicode character
|
|
* may be part of a Java identifier other than the starting
|
|
* character.
|
|
* <P>
|
|
* A character may be part of a Java identifier if and only if
|
|
* it is one of the following:
|
|
* <ul>
|
|
* <li> a letter
|
|
* <li> a currency symbol (such as "$")
|
|
* <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 ch the Unicode character.
|
|
* @return TRUE if the character may be part of a Unicode identifier;
|
|
* FALSE otherwise.
|
|
* @see isIdentifierIgnorable
|
|
* @see isJavaIdentifierStart
|
|
* @see isLetter
|
|
* @see isDigit
|
|
* @see isUnicodeIdentifierPart
|
|
*/
|
|
static bool_t isJavaIdentifierPart(UChar ch);
|
|
|
|
/**
|
|
* 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 ch the Unicode character.
|
|
* @return TRUE if the character may start a Unicode identifier;
|
|
* FALSE otherwise.
|
|
* @see isJavaIdentifierStart
|
|
* @see isLetter
|
|
* @see isUnicodeIdentifierPart
|
|
*/
|
|
static bool_t isUnicodeIdentifierStart(UChar ch);
|
|
|
|
/**
|
|
* 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 ch the Unicode character.
|
|
* @return TRUE if the character may be part of a Unicode identifier;
|
|
* FALSE otherwise.
|
|
* @see isIdentifierIgnorable
|
|
* @see isJavaIdentifierPart
|
|
* @see isLetterOrDigit
|
|
* @see isUnicodeIdentifierStart
|
|
*/
|
|
static bool_t isUnicodeIdentifierPart(UChar ch);
|
|
|
|
/**
|
|
* A convenience method for determining if a Unicode character
|
|
* should be regarded as an ignorable character in a Java
|
|
* identifier or a Unicode identifier.
|
|
* <P>
|
|
* The following Unicode characters are ignorable in a Java identifier
|
|
* or 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 ch the Unicode character.
|
|
* @return TRUE if the character may be part of a Unicode identifier;
|
|
* FALSE otherwise.
|
|
* @see isJavaIdentifierPart
|
|
* @see isUnicodeIdentifierPart
|
|
*/
|
|
static bool_t isIdentifierIgnorable(UChar ch);
|
|
|
|
/**
|
|
* 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 2.0 attribute table.
|
|
* <P>
|
|
* Unicode::toLowerCase() only deals with the general letter case conversion.
|
|
* For language specific case conversion behavior, use UnicodeString::toLower().
|
|
* 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.
|
|
*
|
|
* @see UnicodeString#toLower
|
|
* @see Unicode#isLowerCase
|
|
* @see Unicode#isUpperCase
|
|
* @see Unicode#toUpperCase
|
|
* @see Unicode#toTitleCase
|
|
*/
|
|
static UChar toLowerCase(UChar ch);
|
|
|
|
/**
|
|
* 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>
|
|
* Unicode::toUpperCase() only deals with the general letter case conversion.
|
|
* For language specific case conversion behavior, use UnicodeString::toUpper().
|
|
* 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.
|
|
*
|
|
* @see UnicodeString#toUpper
|
|
* @see Unicode#isUpperCase
|
|
* @see Unicode#isLowerCase
|
|
* @see Unicode#toLowerCase
|
|
* @see Unicode#toTitleCase
|
|
*/
|
|
static UChar toUpperCase(UChar ch);
|
|
|
|
/**
|
|
* 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.
|
|
* @see Unicode#isTitleCase
|
|
* @see Unicode#toUpperCase
|
|
* @see Unicode#toLowerCase
|
|
*/
|
|
static UChar toTitleCase(UChar ch);
|
|
|
|
/**
|
|
* Determines if the specified character is a Unicode space character
|
|
* according to Unicode 2.1.2.
|
|
*
|
|
* @param ch the character to be tested
|
|
* @return true if the character is a space character; false otherwise.
|
|
*/
|
|
static bool_t isSpaceChar(UChar ch);
|
|
|
|
/**
|
|
* Returns a value indicating a character category according to Unicode
|
|
* 2.1.2.
|
|
* @param ch the character to be tested
|
|
* @return a value of type int, the character category.
|
|
* @see Unicode#UNASSIGNED
|
|
* @see Unicode#UPPERCASE_LETTER
|
|
* @see Unicode#LOWERCASE_LETTER
|
|
* @see Unicode#TITLECASE_LETTER
|
|
* @see Unicode#MODIFIER_LETTER
|
|
* @see Unicode#OTHER_LETTER
|
|
* @see Unicode#NON_SPACING_MARK
|
|
* @see Unicode#ENCLOSING_MARK
|
|
* @see Unicode#COMBINING_SPACING_MARK
|
|
* @see Unicode#DECIMAL_DIGIT_NUMBER
|
|
* @see Unicode#OTHER_NUMBER
|
|
* @see Unicode#SPACE_SEPARATOR
|
|
* @see Unicode#LINE_SEPARATOR
|
|
* @see Unicode#PARAGRAPH_SEPARATOR
|
|
* @see Unicode#CONTROL
|
|
* @see Unicode#PRIVATE_USE
|
|
* @see Unicode#SURROGATE
|
|
* @see Unicode#DASH_PUNCTUATION
|
|
* @see Unicode#OPEN_PUNCTUATION
|
|
* @see Unicode#CLOSE_PUNCTUATION
|
|
* @see Unicode#CONNECTOR_PUNCTUATION
|
|
* @see Unicode#OTHER_PUNCTUATION
|
|
* @see Unicode#LETTER_NUMBER
|
|
* @see Unicode#MATH_SYMBOL
|
|
* @see Unicode#CURRENCY_SYMBOL
|
|
* @see Unicode#MODIFIER_SYMBOL
|
|
* @see Unicode#OTHER_SYMBOL
|
|
*/
|
|
static int8_t getType(UChar ch);
|
|
|
|
/**
|
|
* 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 #EDirectionProperty
|
|
*/
|
|
static EDirectionProperty characterDirection(UChar ch);
|
|
|
|
/**
|
|
* Returns the script associated with a character.
|
|
* @see #EUnicodeScript
|
|
*/
|
|
static EUnicodeScript getScript(UChar ch);
|
|
|
|
/**
|
|
* 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.
|
|
*/
|
|
static uint16_t getCellWidth(UChar ch);
|
|
|
|
/**
|
|
* Retrives the decimal numeric value of a digit character.
|
|
* @param ch 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.
|
|
*/
|
|
static int32_t digitValue(UChar ch);
|
|
|
|
/**
|
|
* Retrieves the Unicode Standard Version number that is used
|
|
* @return the Unicode Standard Version Number.
|
|
*/
|
|
static const char* getVersion(void);
|
|
|
|
protected:
|
|
// These constructors, destructor, and assignment operator must
|
|
// be protected (not private, as they semantically are) to make
|
|
// various UNIX compilers happy. [LIU]
|
|
Unicode();
|
|
Unicode( const Unicode& other);
|
|
~Unicode();
|
|
const Unicode& operator=( const Unicode& other);
|
|
|
|
|
|
|
|
};
|
|
|
|
|
|
#endif
|
|
|
|
|
|
|
|
|