| /** |
| ******************************************************************************* |
| * Copyright (C) 2001, International Business Machines Corporation and * |
| * others. All Rights Reserved. * |
| ******************************************************************************* |
| */ |
| |
| package com.ibm.icu.lang; |
| |
| import com.ibm.icu.impl.ICULocaleData; |
| import com.ibm.icu.impl.LocaleUtility; |
| import com.ibm.icu.impl.UCharacterProperty; |
| |
| import java.util.ResourceBundle; |
| import java.util.Locale; |
| import java.util.MissingResourceException; |
| |
| /** |
| * A class to reflect UTR #24: Script Names |
| * (based on ISO 15924:2000, "Code for the representation of names of |
| * scripts"). UTR #24 describes the basis for a new Unicode data file, |
| * Scripts.txt. |
| */ |
| public final class UScript { |
| /** |
| * Puts a copyright in the .class file |
| */ |
| private static final String copyrightNotice |
| = "Copyright \u00a92001 IBM Corp. All rights reserved."; |
| |
| public static final int INVALID_CODE = -1; |
| public static final int COMMON = 0; /* Zyyy */ |
| public static final int INHERITED = 1; /* Qaai */ |
| public static final int ARABIC = 2; /* Arab */ |
| public static final int ARMENIAN = 3; /* Armn */ |
| public static final int BENGALI = 4; /* Beng */ |
| public static final int BOPOMOFO = 5; /* Bopo */ |
| public static final int CHEROKEE = 6; /* Cher */ |
| public static final int COPTIC = 7; /* Qaac */ |
| public static final int CYRILLIC = 8; /* Cyrl (Cyrs) */ |
| public static final int DESERET = 9; /* Dsrt */ |
| public static final int DEVANAGARI = 10; /* Deva */ |
| public static final int ETHIOPIC = 11; /* Ethi */ |
| public static final int GEORGIAN = 12; /* Geor (Geon; Geoa) */ |
| public static final int GOTHIC = 13; /* Goth */ |
| public static final int GREEK = 14; /* Grek */ |
| public static final int GUJARATI = 15; /* Gujr */ |
| public static final int GURMUKHI = 16; /* Guru */ |
| public static final int HAN = 17; /* Hani */ |
| public static final int HANGUL = 18; /* Hang */ |
| public static final int HEBREW = 19; /* Hebr */ |
| public static final int HIRAGANA = 20; /* Hira */ |
| public static final int KANNADA = 21; /* Knda */ |
| public static final int KATAKANA = 22; /* Kana */ |
| public static final int KHMER = 23; /* Khmr */ |
| public static final int LAO = 24; /* Laoo */ |
| public static final int LATIN = 25; /* Latn (Latf; Latg) */ |
| public static final int MALAYALAM = 26; /* Mlym */ |
| public static final int MONGOLIAN = 27; /* Mong */ |
| public static final int MYANMAR = 28; /* Mymr */ |
| public static final int OGHAM = 29; /* Ogam */ |
| public static final int OLD_ITALIC = 30; /* Ital */ |
| public static final int ORIYA = 31; /* Orya */ |
| public static final int RUNIC = 32; /* Runr */ |
| public static final int SINHALA = 33; /* Sinh */ |
| public static final int SYRIAC = 34; /* Syrc (Syrj; Syrn; Syre) */ |
| public static final int TAMIL = 35; /* Taml */ |
| public static final int TELUGU = 36; /* Telu */ |
| public static final int THAANA = 37; /* Thaa */ |
| public static final int THAI = 38; /* Thai */ |
| public static final int TIBETAN = 39; /* Tibt */ |
| public static final int UCAS = 40; /* Cans */ |
| public static final int YI = 41; /* Yiii */ |
| public static final int TAGALOG = 42; /* Tglg */ |
| public static final int HANUNOO = 43; /* Hano */ |
| public static final int BUHID = 44; /* Buhd */ |
| public static final int TAGBANWA = 45; /* Tagb */ |
| public static final int CODE_LIMIT = 46; |
| |
| private static final class NameCodePair{ |
| String name; |
| int code; |
| private NameCodePair(String str, int cd){ |
| name = str; |
| code=cd; |
| } |
| } |
| |
| private static final NameCodePair[] scriptNames={ |
| new NameCodePair( "ARABIC", ARABIC ), |
| new NameCodePair( "ARMENIAN", ARMENIAN ), |
| new NameCodePair( "BENGALI", BENGALI ), |
| new NameCodePair( "BOPOMOFO", BOPOMOFO ), |
| new NameCodePair( "BUHID", BUHID ), |
| new NameCodePair( "CANADIAN_ABORIGINAL", UCAS ), |
| new NameCodePair( "CHEROKEE", CHEROKEE ), |
| new NameCodePair( "COMMON", COMMON ), |
| new NameCodePair( "CYRILLIC", CYRILLIC ), |
| new NameCodePair( "DESERET", DESERET ), |
| new NameCodePair( "DEVANAGARI", DEVANAGARI ), |
| new NameCodePair( "ETHIOPIC", ETHIOPIC ), |
| new NameCodePair( "GEORGIAN", GEORGIAN ), |
| new NameCodePair( "GOTHIC", GOTHIC ), |
| new NameCodePair( "GREEK", GREEK ), |
| new NameCodePair( "GUJARATI", GUJARATI ), |
| new NameCodePair( "GURMUKHI", GURMUKHI ), |
| new NameCodePair( "HAN", HAN ), |
| new NameCodePair( "HANGUL", HANGUL ), |
| new NameCodePair( "HANUNOO", HANUNOO ), |
| new NameCodePair( "HEBREW", HEBREW ), |
| new NameCodePair( "HIRAGANA", HIRAGANA ), |
| new NameCodePair( "INHERITED", INHERITED ), |
| new NameCodePair( "KANNADA", KANNADA ), |
| new NameCodePair( "KATAKANA", KATAKANA ), |
| new NameCodePair( "KHMER", KHMER ), |
| new NameCodePair( "LATIN", LATIN ), |
| new NameCodePair( "MALAYALAM", MALAYALAM ), |
| new NameCodePair( "MONGOLIAN", MONGOLIAN ), |
| new NameCodePair( "MYANMAR", MYANMAR ), |
| new NameCodePair( "OGHAM", OGHAM ), |
| new NameCodePair( "OLD_ITALIC", OLD_ITALIC ), |
| new NameCodePair( "ORIYA", ORIYA ), |
| new NameCodePair( "RUNIC", RUNIC ), |
| new NameCodePair( "SINHALA", SINHALA ), |
| new NameCodePair( "SYRIAC", SYRIAC ), |
| new NameCodePair( "TAGALOG", TAGALOG ), |
| new NameCodePair( "TAGBANWA", TAGBANWA ), |
| new NameCodePair( "TAMIL", TAMIL ), |
| new NameCodePair( "TELUGU", TELUGU ), |
| new NameCodePair( "THAANA", THAANA ), |
| new NameCodePair( "THAI", THAI ), |
| new NameCodePair( "TIBETAN", TIBETAN ), |
| new NameCodePair( "UCAS", UCAS ), |
| new NameCodePair( "YI", YI ) |
| }; |
| |
| /* script abbreviations with codes, sorted by abbreviations */ |
| private static final NameCodePair[] scriptAbbr= { |
| new NameCodePair( "Arab", ARABIC ), |
| new NameCodePair( "Armn", ARMENIAN ), |
| new NameCodePair( "Beng", BENGALI ), |
| new NameCodePair( "Bopo", BOPOMOFO ), |
| new NameCodePair( "Buhd", BUHID ), |
| new NameCodePair( "Cans", UCAS ), |
| new NameCodePair( "Cher", CHEROKEE ), |
| new NameCodePair( "Cyrl", CYRILLIC ), |
| /* new NameCodePair( "Cyrs", CYRILLIC ), */ |
| new NameCodePair( "Deva", DEVANAGARI ), |
| new NameCodePair( "Dsrt", DESERET ), |
| new NameCodePair( "Ethi", ETHIOPIC ), |
| /* new NameCodePair( Geoa", GEORGIAN ), */ |
| /* new NameCodePair( Geon", GEORGIAN ), */ |
| new NameCodePair( "Geor", GEORGIAN ), |
| new NameCodePair( "Goth", GOTHIC ), |
| new NameCodePair( "Grek", GREEK ), |
| new NameCodePair( "Gujr", GUJARATI ), |
| new NameCodePair( "Guru", GURMUKHI ), |
| new NameCodePair( "Hang", HANGUL ), |
| new NameCodePair( "Hani", HAN ), |
| new NameCodePair( "Hano", HANUNOO ), |
| new NameCodePair( "Hebr", HEBREW ), |
| new NameCodePair( "Hira", HIRAGANA ), |
| new NameCodePair( "Ital", OLD_ITALIC ), |
| new NameCodePair( "Kana", KATAKANA ), |
| new NameCodePair( "Khmr", KHMER ), |
| new NameCodePair( "Knda", KANNADA ), |
| new NameCodePair( "Lao", LAO ), |
| /* new NameCodePair( "Laoo", LAO ), */ |
| /* new NameCodePair( "Latf", LATIN ), */ |
| /* new NameCodePair( "Latg", LATIN ), */ |
| new NameCodePair( "Latn", LATIN ), |
| new NameCodePair( "Mlym", MALAYALAM ), |
| new NameCodePair( "Mong", MONGOLIAN ), |
| new NameCodePair( "Mymr", MYANMAR ), |
| new NameCodePair( "Ogam", OGHAM ), |
| new NameCodePair( "Orya", ORIYA ), |
| new NameCodePair( "Qaac", COPTIC ), |
| new NameCodePair( "Qaai", INHERITED ), |
| new NameCodePair( "Runr", RUNIC ), |
| new NameCodePair( "Sinh", SINHALA ), |
| new NameCodePair( "Syrc", SYRIAC ), |
| /* new NameCodePair( "Syre", SYRIAC ), */ |
| /* new NameCodePair( "Syrj", SYRIAC ), */ |
| /* new NameCodePair( "Syrn", SYRIAC ), */ |
| new NameCodePair( "Tagb", TAGBANWA ), |
| new NameCodePair( "Taml", TAMIL ), |
| new NameCodePair( "Telu", TELUGU ), |
| new NameCodePair( "Tglg", TAGALOG ), |
| new NameCodePair( "Thaa", THAANA ), |
| new NameCodePair( "Thai", THAI ), |
| new NameCodePair( "Tibt", TIBETAN ), |
| new NameCodePair( "Yiii", YI ), |
| new NameCodePair( "Zyyy", COMMON ) |
| }; |
| |
| |
| |
| /* binary search the string array */ |
| private static int findStringIndex(NameCodePair[] sortedArr, String target){ |
| int size = sortedArr.length; |
| int left, middle, right,rc; |
| left =0; |
| right= size-1; |
| |
| target = target.toUpperCase(); |
| while(left <= right){ |
| middle = (left+right)/2; |
| rc=comparePropertyNames(sortedArr[middle].name,target); |
| if(rc<0){ |
| left = middle+1; |
| }else if(rc >0){ |
| right = middle -1; |
| }else{ |
| return middle; |
| } |
| } |
| return -1; |
| } |
| |
| /* linearly search the array and return the index */ |
| private static int findCodeIndex(NameCodePair[] unsorted, int target){ |
| int size = unsorted.length; |
| int i=0; |
| while(i<size){ |
| if(target == unsorted[i].code){ |
| return i; |
| } |
| i++; |
| } |
| return -1; |
| } |
| |
| private static final int SCRIPT_MASK = 0x0000007f; |
| private static final UCharacterProperty prop= UCharacterProperty.getInstance(); |
| |
| /** |
| * Helper function to find the code from locale. |
| * @param Locale the locale. |
| * @exception MissingResourceException if LocaleScript cannot be opened |
| */ |
| private static int[] findCodeFromLocale(Locale locale) { |
| |
| ResourceBundle rb = ICULocaleData.getLocaleElements(locale); |
| |
| // if rb is not a strict fallback of the requested locale, return null |
| if (rb==null || !LocaleUtility.isFallbackOf(rb.getLocale(), locale)) { |
| return null; |
| } |
| |
| String[] scripts = rb.getStringArray("LocaleScript"); |
| int[] result = new int[scripts.length]; |
| int w = 0; |
| for (int i = 0; i < scripts.length; ++i) { |
| int strIndex = findStringIndex(scriptAbbr, scripts[i]); |
| if (strIndex != -1) { |
| result[w++] = scriptAbbr[strIndex].code; |
| } |
| } |
| |
| if (w < result.length) { |
| throw new InternalError("bad locale data, listed " + scripts.length + " scripts but found only " + w); |
| } |
| |
| return result; |
| } |
| |
| /** |
| * Gets a script codes associated with the given locale or ISO 15924 abbreviation or name. |
| * Returns MALAYAM given "Malayam" OR "Mlym". |
| * Returns LATIN given "en" OR "en_US" |
| * @param locale Locale |
| * @return The script codes array. null if the the code cannot be found. |
| * @exception MissingResourceException |
| * @draft |
| */ |
| public static final int[] getCode(Locale locale) |
| throws MissingResourceException { |
| return findCodeFromLocale(locale); |
| } |
| |
| /** |
| * Gets a script codes associated with the given locale or ISO 15924 abbreviation or name. |
| * Returns MALAYAM given "Malayam" OR "Mlym". |
| * Returns LATIN given "en" OR "en_US" |
| * @param nameOrAbbrOrLocale name of the script or ISO 15924 code or locale |
| * @return The script codes array. null if the the code cannot be found. |
| * @draft |
| */ |
| public static final int[] getCode(String nameOrAbbrOrLocale){ |
| |
| int[] code = new int[1]; |
| code[0] = INVALID_CODE; |
| int strIndex=0; |
| |
| /* try the Names array first */ |
| strIndex = findStringIndex(scriptNames, nameOrAbbrOrLocale); |
| |
| if(strIndex>=0 && strIndex < scriptNames.length){ |
| code[0] = scriptNames[strIndex].code; |
| } |
| /* we did not find in names array so try abbr array*/ |
| if(code[0] == INVALID_CODE){ |
| strIndex = findStringIndex(scriptAbbr, nameOrAbbrOrLocale); |
| if(strIndex>=0 && strIndex < scriptAbbr.length){ |
| code[0] = scriptAbbr[strIndex].code; |
| } |
| } |
| /* we still haven't found it try locale */ |
| if(code[0]==INVALID_CODE){ |
| code = findCodeFromLocale(LocaleUtility.getLocaleFromName(nameOrAbbrOrLocale)); |
| } |
| return code; |
| } |
| |
| /** |
| * Gets the script code associated with the given codepoint. |
| * Returns UScript.MALAYAM given 0x0D02 |
| * @param codepoint UChar32 codepoint |
| * @param err the error status code. |
| * @return The script code |
| * @exception IllegalArgumentException |
| * @draft |
| */ |
| public static final int getScript(int codepoint){ |
| if (codepoint >= UCharacter.MIN_VALUE & codepoint <= UCharacter.MAX_VALUE) { |
| return (int)(prop.getAdditional(codepoint,0) & SCRIPT_MASK); |
| }else{ |
| throw new IllegalArgumentException(Integer.toString(codepoint)); |
| } |
| } |
| |
| /** |
| * Gets a script name associated with the given script code. |
| * Returns "Malayam" given MALAYAM |
| * @param scriptCode int script code |
| * @return script name as a string in full as given in TR#24 |
| * @exception IllegalArgumentException |
| * @draft |
| */ |
| public static final String getName(int scriptCode){ |
| int index = -1; |
| if(scriptCode > CODE_LIMIT){ |
| throw new IllegalArgumentException(Integer.toString(scriptCode)); |
| } |
| index = findCodeIndex(scriptNames,scriptCode); |
| if(index >=0){ |
| return scriptNames[index].name; |
| }else{ |
| throw new IllegalArgumentException(Integer.toString(scriptCode)); |
| } |
| } |
| |
| /** |
| * Gets a script name associated with the given script code. |
| * Returns "Mlym" given MALAYAM |
| * @param scriptCode int script code |
| * @return script abbreviated name as a string as given in TR#24 |
| * @exception IllegalArgumentException |
| * @draft |
| */ |
| public static final String getShortName(int scriptCode){ |
| int index = -1; |
| if(scriptCode > CODE_LIMIT){ |
| throw new IllegalArgumentException(Integer.toString(scriptCode)); |
| } |
| index = findCodeIndex(scriptAbbr,scriptCode); |
| if(index >=0){ |
| return scriptAbbr[index].name; |
| }else{ |
| throw new IllegalArgumentException(Integer.toString(scriptCode)); |
| } |
| } |
| private static int comparePropertyNames( String s1, String s2) { |
| int rc; |
| char c1, c2; |
| char[] name1 = s1.toCharArray(); |
| char[] name2 = s2.toCharArray(); |
| int i=0; |
| int j=0; |
| |
| for(;;) { |
| if((i>=name1.length)||(j>=name2.length)) { |
| return (name1.length - name2.length); |
| } |
| // Ignore delimiters '-', '_', and ASCII White_Space |
| while((c1=name1[i])=='-' || c1=='_' || |
| c1==' ' || c1=='\t' || c1=='\n' || c1==0x0B || c1=='\f' || c1=='\r' |
| ) { |
| ++i; |
| } |
| while((c2=name2[j])=='-' || c2=='_' || |
| c2==' ' || c2=='\t' || c2=='\n' || c2==0x0B || c2=='\f' || c2=='\r' |
| ) { |
| ++j; |
| } |
| // Case-insensitive comparison |
| if(c1!=c2) { |
| rc=(int)(char)UCharacter.toLowerCase(c1)-(int)(char)UCharacter.toLowerCase(c2); |
| if(rc!=0) { |
| return rc; |
| } |
| } |
| |
| ++i; |
| ++j; |
| } |
| } |
| } |
| |
