| /* | |
| * Copyright (c) 2002, 2021, Oracle and/or its affiliates. All rights reserved. | |
| * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER. | |
| * | |
| * This code is free software; you can redistribute it and/or modify it | |
| * under the terms of the GNU General Public License version 2 only, as | |
| * published by the Free Software Foundation. Oracle designates this | |
| * particular file as subject to the "Classpath" exception as provided | |
| * by Oracle in the LICENSE file that accompanied this code. | |
| * | |
| * This code is distributed in the hope that it will be useful, but WITHOUT | |
| * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or | |
| * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License | |
| * version 2 for more details (a copy is included in the LICENSE file that | |
| * accompanied this code). | |
| * | |
| * You should have received a copy of the GNU General Public License version | |
| * 2 along with this work; if not, write to the Free Software Foundation, | |
| * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA. | |
| * | |
| * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA | |
| * or visit www.oracle.com if you need additional information or have any | |
| * questions. | |
| */ | |
| /* | |
| */ | |
| package sun.nio.cs.ext; | |
| import java.nio.charset.Charset; | |
| import java.nio.CharBuffer; | |
| import java.nio.ByteBuffer; | |
| import java.nio.charset.CharsetDecoder; | |
| import java.nio.charset.CharsetEncoder; | |
| import java.nio.charset.CoderResult; | |
| import sun.nio.cs.Surrogate; | |
| import sun.nio.cs.HistoricallyNamedCharset; | |
| public class ISCII91 extends Charset implements HistoricallyNamedCharset | |
| { | |
| private static final char NUKTA_CHAR = '\u093c'; | |
| private static final char HALANT_CHAR = '\u094d'; | |
| private static final byte NO_CHAR = (byte)255; | |
| public ISCII91() { | |
| super("x-ISCII91", ExtendedCharsets.aliasesFor("x-ISCII91")); | |
| } | |
| public String historicalName() { | |
| return "ISCII91"; | |
| } | |
| public boolean contains(Charset cs) { | |
| return ((cs.name().equals("US-ASCII")) | |
| || (cs instanceof ISCII91)); | |
| } | |
| public CharsetDecoder newDecoder() { | |
| return new Decoder(this); | |
| } | |
| public CharsetEncoder newEncoder() { | |
| return new Encoder(this); | |
| } | |
| private static final char[] directMapTable = { | |
| '\u0000', // ascii character | |
| '\u0001', // ascii character | |
| '\u0002', // ascii character | |
| '\u0003', // ascii character | |
| '\u0004', // ascii character | |
| '\u0005', // ascii character | |
| '\u0006', // ascii character | |
| '\u0007', // ascii character | |
| '\u0008', // ascii character | |
| '\u0009', // ascii character | |
| '\012', // ascii character | |
| '\u000b', // ascii character | |
| '\u000c', // ascii character | |
| '\015', // ascii character | |
| '\u000e', // ascii character | |
| '\u000f', // ascii character | |
| '\u0010', // ascii character | |
| '\u0011', // ascii character | |
| '\u0012', // ascii character | |
| '\u0013', // ascii character | |
| '\u0014', // ascii character | |
| '\u0015', // ascii character | |
| '\u0016', // ascii character | |
| '\u0017', // ascii character | |
| '\u0018', // ascii character | |
| '\u0019', // ascii character | |
| '\u001a', // ascii character | |
| '\u001b', // ascii character | |
| '\u001c', // ascii character | |
| '\u001d', // ascii character | |
| '\u001e', // ascii character | |
| '\u001f', // ascii character | |
| '\u0020', // ascii character | |
| '\u0021', // ascii character | |
| '\u0022', // ascii character | |
| '\u0023', // ascii character | |
| '\u0024', // ascii character | |
| '\u0025', // ascii character | |
| '\u0026', // ascii character | |
| (char)0x0027, // '\u0027' control -- ascii character | |
| '\u0028', // ascii character | |
| '\u0029', // ascii character | |
| '\u002a', // ascii character | |
| '\u002b', // ascii character | |
| '\u002c', // ascii character | |
| '\u002d', // ascii character | |
| '\u002e', // ascii character | |
| '\u002f', // ascii character | |
| '\u0030', // ascii character | |
| '\u0031', // ascii character | |
| '\u0032', // ascii character | |
| '\u0033', // ascii character | |
| '\u0034', // ascii character | |
| '\u0035', // ascii character | |
| '\u0036', // ascii character | |
| '\u0037', // ascii character | |
| '\u0038', // ascii character | |
| '\u0039', // ascii character | |
| '\u003a', // ascii character | |
| '\u003b', // ascii character | |
| '\u003c', // ascii character | |
| '\u003d', // ascii character | |
| '\u003e', // ascii character | |
| '\u003f', // ascii character | |
| '\u0040', // ascii character | |
| '\u0041', // ascii character | |
| '\u0042', // ascii character | |
| '\u0043', // ascii character | |
| '\u0044', // ascii character | |
| '\u0045', // ascii character | |
| '\u0046', // ascii character | |
| '\u0047', // ascii character | |
| '\u0048', // ascii character | |
| '\u0049', // ascii character | |
| '\u004a', // ascii character | |
| '\u004b', // ascii character | |
| '\u004c', // ascii character | |
| '\u004d', // ascii character | |
| '\u004e', // ascii character | |
| '\u004f', // ascii character | |
| '\u0050', // ascii character | |
| '\u0051', // ascii character | |
| '\u0052', // ascii character | |
| '\u0053', // ascii character | |
| '\u0054', // ascii character | |
| '\u0055', // ascii character | |
| '\u0056', // ascii character | |
| '\u0057', // ascii character | |
| '\u0058', // ascii character | |
| '\u0059', // ascii character | |
| '\u005a', // ascii character | |
| '\u005b', // ascii character | |
| '\\',// '\u005c' -- ascii character | |
| '\u005d', // ascii character | |
| '\u005e', // ascii character | |
| '\u005f', // ascii character | |
| '\u0060', // ascii character | |
| '\u0061', // ascii character | |
| '\u0062', // ascii character | |
| '\u0063', // ascii character | |
| '\u0064', // ascii character | |
| '\u0065', // ascii character | |
| '\u0066', // ascii character | |
| '\u0067', // ascii character | |
| '\u0068', // ascii character | |
| '\u0069', // ascii character | |
| '\u006a', // ascii character | |
| '\u006b', // ascii character | |
| '\u006c', // ascii character | |
| '\u006d', // ascii character | |
| '\u006e', // ascii character | |
| '\u006f', // ascii character | |
| '\u0070', // ascii character | |
| '\u0071', // ascii character | |
| '\u0072', // ascii character | |
| '\u0073', // ascii character | |
| '\u0074', // ascii character | |
| '\u0075', // ascii character | |
| '\u0076', // ascii character | |
| '\u0077', // ascii character | |
| '\u0078', // ascii character | |
| '\u0079', // ascii character | |
| '\u007a', // ascii character | |
| '\u007b', // ascii character | |
| '\u007c', // ascii character | |
| '\u007d', // ascii character | |
| '\u007e', // ascii character | |
| '\u007f', // ascii character | |
| '\uffff', // unknown character | |
| '\uffff', // unknown character | |
| '\uffff', // unknown character | |
| '\uffff', // unknown character | |
| '\uffff', // unknown character | |
| '\uffff', // unknown character | |
| '\uffff', // unknown character | |
| '\uffff', // unknown character | |
| '\uffff', // unknown character | |
| '\uffff', // unknown character | |
| '\uffff', // unknown character | |
| '\uffff', // unknown character | |
| '\uffff', // unknown character | |
| '\uffff', // unknown character | |
| '\uffff', // unknown character | |
| '\uffff', // unknown character | |
| '\uffff', // unknown character | |
| '\uffff', // unknown character | |
| '\uffff', // unknown character | |
| '\uffff', // unknown character | |
| '\uffff', // unknown character | |
| '\uffff', // unknown character | |
| '\uffff', // unknown character | |
| '\uffff', // unknown character | |
| '\uffff', // unknown character | |
| '\uffff', // unknown character | |
| '\uffff', // unknown character | |
| '\uffff', // unknown character | |
| '\uffff', // unknown character | |
| '\uffff', // unknown character | |
| '\uffff', // unknown character | |
| '\uffff', // unknown character | |
| '\u0901', // a1 -- Vowel-modifier CHANDRABINDU | |
| '\u0902', // a2 -- Vowel-modifier ANUSWAR | |
| '\u0903', // a3 -- Vowel-modifier VISARG | |
| '\u0905', // a4 -- Vowel A | |
| '\u0906', // a5 -- Vowel AA | |
| '\u0907', // a6 -- Vowel I | |
| '\u0908', // a7 -- Vowel II | |
| '\u0909', // a8 -- Vowel U | |
| '\u090a', // a9 -- Vowel UU | |
| '\u090b', // aa -- Vowel RI | |
| '\u090e', // ab -- Vowel E ( Southern Scripts ) | |
| '\u090f', // ac -- Vowel EY | |
| '\u0910', // ad -- Vowel AI | |
| '\u090d', // ae -- Vowel AYE ( Devanagari Script ) | |
| '\u0912', // af -- Vowel O ( Southern Scripts ) | |
| '\u0913', // b0 -- Vowel OW | |
| '\u0914', // b1 -- Vowel AU | |
| '\u0911', // b2 -- Vowel AWE ( Devanagari Script ) | |
| '\u0915', // b3 -- Consonant KA | |
| '\u0916', // b4 -- Consonant KHA | |
| '\u0917', // b5 -- Consonant GA | |
| '\u0918', // b6 -- Consonant GHA | |
| '\u0919', // b7 -- Consonant NGA | |
| '\u091a', // b8 -- Consonant CHA | |
| '\u091b', // b9 -- Consonant CHHA | |
| '\u091c', // ba -- Consonant JA | |
| '\u091d', // bb -- Consonant JHA | |
| '\u091e', // bc -- Consonant JNA | |
| '\u091f', // bd -- Consonant Hard TA | |
| '\u0920', // be -- Consonant Hard THA | |
| '\u0921', // bf -- Consonant Hard DA | |
| '\u0922', // c0 -- Consonant Hard DHA | |
| '\u0923', // c1 -- Consonant Hard NA | |
| '\u0924', // c2 -- Consonant Soft TA | |
| '\u0925', // c3 -- Consonant Soft THA | |
| '\u0926', // c4 -- Consonant Soft DA | |
| '\u0927', // c5 -- Consonant Soft DHA | |
| '\u0928', // c6 -- Consonant Soft NA | |
| '\u0929', // c7 -- Consonant NA ( Tamil ) | |
| '\u092a', // c8 -- Consonant PA | |
| '\u092b', // c9 -- Consonant PHA | |
| '\u092c', // ca -- Consonant BA | |
| '\u092d', // cb -- Consonant BHA | |
| '\u092e', // cc -- Consonant MA | |
| '\u092f', // cd -- Consonant YA | |
| '\u095f', // ce -- Consonant JYA ( Bengali, Assamese & Oriya ) | |
| '\u0930', // cf -- Consonant RA | |
| '\u0931', // d0 -- Consonant Hard RA ( Southern Scripts ) | |
| '\u0932', // d1 -- Consonant LA | |
| '\u0933', // d2 -- Consonant Hard LA | |
| '\u0934', // d3 -- Consonant ZHA ( Tamil & Malayalam ) | |
| '\u0935', // d4 -- Consonant VA | |
| '\u0936', // d5 -- Consonant SHA | |
| '\u0937', // d6 -- Consonant Hard SHA | |
| '\u0938', // d7 -- Consonant SA | |
| '\u0939', // d8 -- Consonant HA | |
| '\u200d', // d9 -- Consonant INVISIBLE | |
| '\u093e', // da -- Vowel Sign AA | |
| '\u093f', // db -- Vowel Sign I | |
| '\u0940', // dc -- Vowel Sign II | |
| '\u0941', // dd -- Vowel Sign U | |
| '\u0942', // de -- Vowel Sign UU | |
| '\u0943', // df -- Vowel Sign RI | |
| '\u0946', // e0 -- Vowel Sign E ( Southern Scripts ) | |
| '\u0947', // e1 -- Vowel Sign EY | |
| '\u0948', // e2 -- Vowel Sign AI | |
| '\u0945', // e3 -- Vowel Sign AYE ( Devanagari Script ) | |
| '\u094a', // e4 -- Vowel Sign O ( Southern Scripts ) | |
| '\u094b', // e5 -- Vowel Sign OW | |
| '\u094c', // e6 -- Vowel Sign AU | |
| '\u0949', // e7 -- Vowel Sign AWE ( Devanagari Script ) | |
| '\u094d', // e8 -- Vowel Omission Sign ( Halant ) | |
| '\u093c', // e9 -- Diacritic Sign ( Nukta ) | |
| '\u0964', // ea -- Full Stop ( Viram, Northern Scripts ) | |
| '\uffff', // eb -- This position shall not be used | |
| '\uffff', // ec -- This position shall not be used | |
| '\uffff', // ed -- This position shall not be used | |
| '\uffff', // ee -- This position shall not be used | |
| '\ufffd', // ef -- Attribute Code ( ATR ) | |
| '\ufffd', // f0 -- Extension Code ( EXT ) | |
| '\u0966', // f1 -- Digit 0 | |
| '\u0967', // f2 -- Digit 1 | |
| '\u0968', // f3 -- Digit 2 | |
| '\u0969', // f4 -- Digit 3 | |
| '\u096a', // f5 -- Digit 4 | |
| '\u096b', // f6 -- Digit 5 | |
| '\u096c', // f7 -- Digit 6 | |
| '\u096d', // f8 -- Digit 7 | |
| '\u096e', // f9 -- Digit 8 | |
| '\u096f', // fa -- Digit 9 | |
| '\uffff', // fb -- This position shall not be used | |
| '\uffff', // fc -- This position shall not be used | |
| '\uffff', // fd -- This position shall not be used | |
| '\uffff', // fe -- This position shall not be used | |
| '\uffff' // ff -- This position shall not be used | |
| }; //end of table definition | |
| private static final byte[] encoderMappingTable = { | |
| NO_CHAR,NO_CHAR, //0900 <reserved> | |
| (byte)161,NO_CHAR, //0901 -- DEVANAGARI SIGN CANDRABINDU = anunasika | |
| (byte)162,NO_CHAR, //0902 -- DEVANAGARI SIGN ANUSVARA = bindu | |
| (byte)163,NO_CHAR, //0903 -- DEVANAGARI SIGN VISARGA | |
| NO_CHAR,NO_CHAR, //0904 <reserved> | |
| (byte)164,NO_CHAR, //0905 -- DEVANAGARI LETTER A | |
| (byte)165,NO_CHAR, //0906 -- DEVANAGARI LETTER AA | |
| (byte)166,NO_CHAR, //0907 -- DEVANAGARI LETTER I | |
| (byte)167,NO_CHAR, //0908 -- DEVANAGARI LETTER II | |
| (byte)168,NO_CHAR, //0909 -- DEVANAGARI LETTER U | |
| (byte)169,NO_CHAR, //090a -- DEVANAGARI LETTER UU | |
| (byte)170,NO_CHAR, //090b -- DEVANAGARI LETTER VOCALIC R | |
| (byte)166,(byte)233, //090c -- DEVANAGARI LETTER VOVALIC L | |
| (byte)174,NO_CHAR, //090d -- DEVANAGARI LETTER CANDRA E | |
| (byte)171,NO_CHAR, //090e -- DEVANAGARI LETTER SHORT E | |
| (byte)172,NO_CHAR, //090f -- DEVANAGARI LETTER E | |
| (byte)173,NO_CHAR, //0910 -- DEVANAGARI LETTER AI | |
| (byte)178,NO_CHAR, //0911 -- DEVANAGARI LETTER CANDRA O | |
| (byte)175,NO_CHAR, //0912 -- DEVANAGARI LETTER SHORT O | |
| (byte)176,NO_CHAR, //0913 -- DEVANAGARI LETTER O | |
| (byte)177,NO_CHAR, //0914 -- DEVANAGARI LETTER AU | |
| (byte)179,NO_CHAR, //0915 -- DEVANAGARI LETTER KA | |
| (byte)180,NO_CHAR, //0916 -- DEVANAGARI LETTER KHA | |
| (byte)181,NO_CHAR, //0917 -- DEVANAGARI LETTER GA | |
| (byte)182,NO_CHAR, //0918 -- DEVANAGARI LETTER GHA | |
| (byte)183,NO_CHAR, //0919 -- DEVANAGARI LETTER NGA | |
| (byte)184,NO_CHAR, //091a -- DEVANAGARI LETTER CA | |
| (byte)185,NO_CHAR, //091b -- DEVANAGARI LETTER CHA | |
| (byte)186,NO_CHAR, //091c -- DEVANAGARI LETTER JA | |
| (byte)187,NO_CHAR, //091d -- DEVANAGARI LETTER JHA | |
| (byte)188,NO_CHAR, //091e -- DEVANAGARI LETTER NYA | |
| (byte)189,NO_CHAR, //091f -- DEVANAGARI LETTER TTA | |
| (byte)190,NO_CHAR, //0920 -- DEVANAGARI LETTER TTHA | |
| (byte)191,NO_CHAR, //0921 -- DEVANAGARI LETTER DDA | |
| (byte)192,NO_CHAR, //0922 -- DEVANAGARI LETTER DDHA | |
| (byte)193,NO_CHAR, //0923 -- DEVANAGARI LETTER NNA | |
| (byte)194,NO_CHAR, //0924 -- DEVANAGARI LETTER TA | |
| (byte)195,NO_CHAR, //0925 -- DEVANAGARI LETTER THA | |
| (byte)196,NO_CHAR, //0926 -- DEVANAGARI LETTER DA | |
| (byte)197,NO_CHAR, //0927 -- DEVANAGARI LETTER DHA | |
| (byte)198,NO_CHAR, //0928 -- DEVANAGARI LETTER NA | |
| (byte)199,NO_CHAR, //0929 -- DEVANAGARI LETTER NNNA <=> 0928 + 093C | |
| (byte)200,NO_CHAR, //092a -- DEVANAGARI LETTER PA | |
| (byte)201,NO_CHAR, //092b -- DEVANAGARI LETTER PHA | |
| (byte)202,NO_CHAR, //092c -- DEVANAGARI LETTER BA | |
| (byte)203,NO_CHAR, //092d -- DEVANAGARI LETTER BHA | |
| (byte)204,NO_CHAR, //092e -- DEVANAGARI LETTER MA | |
| (byte)205,NO_CHAR, //092f -- DEVANAGARI LETTER YA | |
| (byte)207,NO_CHAR, //0930 -- DEVANAGARI LETTER RA | |
| (byte)208,NO_CHAR, //0931 -- DEVANAGARI LETTER RRA <=> 0930 + 093C | |
| (byte)209,NO_CHAR, //0932 -- DEVANAGARI LETTER LA | |
| (byte)210,NO_CHAR, //0933 -- DEVANAGARI LETTER LLA | |
| (byte)211,NO_CHAR, //0934 -- DEVANAGARI LETTER LLLA <=> 0933 + 093C | |
| (byte)212,NO_CHAR, //0935 -- DEVANAGARI LETTER VA | |
| (byte)213,NO_CHAR, //0936 -- DEVANAGARI LETTER SHA | |
| (byte)214,NO_CHAR, //0937 -- DEVANAGARI LETTER SSA | |
| (byte)215,NO_CHAR, //0938 -- DEVANAGARI LETTER SA | |
| (byte)216,NO_CHAR, //0939 -- DEVANAGARI LETTER HA | |
| NO_CHAR,NO_CHAR, //093a <reserved> | |
| NO_CHAR,NO_CHAR, //093b <reserved> | |
| (byte)233,NO_CHAR, //093c -- DEVANAGARI SIGN NUKTA | |
| (byte)234,(byte)233, //093d -- DEVANAGARI SIGN AVAGRAHA | |
| (byte)218,NO_CHAR, //093e -- DEVANAGARI VOWEL SIGN AA | |
| (byte)219,NO_CHAR, //093f -- DEVANAGARI VOWEL SIGN I | |
| (byte)220,NO_CHAR, //0940 -- DEVANAGARI VOWEL SIGN II | |
| (byte)221,NO_CHAR, //0941 -- DEVANAGARI VOWEL SIGN U | |
| (byte)222,NO_CHAR, //0942 -- DEVANAGARI VOWEL SIGN UU | |
| (byte)223,NO_CHAR, //0943 -- DEVANAGARI VOWEL SIGN VOCALIC R | |
| (byte)223,(byte)233, //0944 -- DEVANAGARI VOWEL SIGN VOCALIC RR | |
| (byte)227,NO_CHAR, //0945 -- DEVANAGARI VOWEL SIGN CANDRA E | |
| (byte)224,NO_CHAR, //0946 -- DEVANAGARI VOWEL SIGN SHORT E | |
| (byte)225,NO_CHAR, //0947 -- DEVANAGARI VOWEL SIGN E | |
| (byte)226,NO_CHAR, //0948 -- DEVANAGARI VOWEL SIGN AI | |
| (byte)231,NO_CHAR, //0949 -- DEVANAGARI VOWEL SIGN CANDRA O | |
| (byte)228,NO_CHAR, //094a -- DEVANAGARI VOWEL SIGN SHORT O | |
| (byte)229,NO_CHAR, //094b -- DEVANAGARI VOWEL SIGN O | |
| (byte)230,NO_CHAR, //094c -- DEVANAGARI VOWEL SIGN AU | |
| (byte)232,NO_CHAR, //094d -- DEVANAGARI SIGN VIRAMA ( halant ) | |
| NO_CHAR,NO_CHAR, //094e <reserved> | |
| NO_CHAR,NO_CHAR, //094f <reserved> | |
| (byte)161,(byte)233, //0950 -- DEVANAGARI OM | |
| (byte)240,(byte)181, //0951 -- DEVANAGARI STRESS SIGN UDATTA | |
| (byte)240,(byte)184, //0952 -- DEVANAGARI STRESS SIGN ANUDATTA | |
| (byte)254,NO_CHAR, //0953 -- DEVANAGARI GRAVE ACCENT || MISSING | |
| (byte)254,NO_CHAR, //0954 -- DEVANAGARI ACUTE ACCENT || MISSING | |
| NO_CHAR,NO_CHAR, //0955 <reserved> | |
| NO_CHAR,NO_CHAR, //0956 <reserved> | |
| NO_CHAR,NO_CHAR, //0957 <reserved> | |
| (byte)179,(byte)233, //0958 -- DEVANAGARI LETTER QA <=> 0915 + 093C | |
| (byte)180,(byte)233, //0959 -- DEVANAGARI LETTER KHHA <=> 0916 + 093C | |
| (byte)181,(byte)233, //095a -- DEVANAGARI LETTER GHHA <=> 0917 + 093C | |
| (byte)186,(byte)233, //095b -- DEVANAGARI LETTER ZA <=> 091C + 093C | |
| (byte)191,(byte)233, //095c -- DEVANAGARI LETTER DDDHA <=> 0921 + 093C | |
| (byte)192,(byte)233, //095d -- DEVANAGARI LETTER RHA <=> 0922 + 093C | |
| (byte)201,(byte)233, //095e -- DEVANAGARI LETTER FA <=> 092B + 093C | |
| (byte)206,NO_CHAR, //095f -- DEVANAGARI LETTER YYA <=> 092F + 093C | |
| (byte)170,(byte)233, //0960 -- DEVANAGARI LETTER VOCALIC RR | |
| (byte)167,(byte)233, //0961 -- DEVANAGARI LETTER VOCALIC LL | |
| (byte)219,(byte)233, //0962 -- DEVANAGARI VOWEL SIGN VOCALIC L | |
| (byte)220,(byte)233, //0963 -- DEVANAGARI VOWEL SIGN VOCALIC LL | |
| (byte)234,NO_CHAR, //0964 -- DEVANAGARI DANDA ( phrase separator ) | |
| (byte)234,(byte)234, //0965 -- DEVANAGARI DOUBLE DANDA | |
| (byte)241,NO_CHAR, //0966 -- DEVANAGARI DIGIT ZERO | |
| (byte)242,NO_CHAR, //0967 -- DEVANAGARI DIGIT ONE | |
| (byte)243,NO_CHAR, //0968 -- DEVANAGARI DIGIT TWO | |
| (byte)244,NO_CHAR, //0969 -- DEVANAGARI DIGIT THREE | |
| (byte)245,NO_CHAR, //096a -- DEVANAGARI DIGIT FOUR | |
| (byte)246,NO_CHAR, //096b -- DEVANAGARI DIGIT FIVE | |
| (byte)247,NO_CHAR, //096c -- DEVANAGARI DIGIT SIX | |
| (byte)248,NO_CHAR, //096d -- DEVANAGARI DIGIT SEVEN | |
| (byte)249,NO_CHAR, //096e -- DEVANAGARI DIGIT EIGHT | |
| (byte)250,NO_CHAR, //096f -- DEVANAGARI DIGIT NINE | |
| (byte)240,(byte)191, //0970 -- DEVANAGARI ABBREVIATION SIGN | |
| NO_CHAR,NO_CHAR, //0971 -- reserved | |
| NO_CHAR,NO_CHAR, //0972 -- reserved | |
| NO_CHAR,NO_CHAR, //0973 -- reserved | |
| NO_CHAR,NO_CHAR, //0974 -- reserved | |
| NO_CHAR,NO_CHAR, //0975 -- reserved | |
| NO_CHAR,NO_CHAR, //0976 -- reserved | |
| NO_CHAR,NO_CHAR, //0977 -- reserved | |
| NO_CHAR,NO_CHAR, //0978 -- reserved | |
| NO_CHAR,NO_CHAR, //0979 -- reserved | |
| NO_CHAR,NO_CHAR, //097a -- reserved | |
| NO_CHAR,NO_CHAR, //097b -- reserved | |
| NO_CHAR,NO_CHAR, //097c -- reserved | |
| NO_CHAR,NO_CHAR, //097d -- reserved | |
| NO_CHAR,NO_CHAR, //097e -- reserved | |
| NO_CHAR,NO_CHAR //097f -- reserved | |
| }; //end of table definition | |
| private static class Decoder extends CharsetDecoder { | |
| private static final char ZWNJ_CHAR = '\u200c'; | |
| private static final char ZWJ_CHAR = '\u200d'; | |
| private static final char INVALID_CHAR = '\uffff'; | |
| private char contextChar = INVALID_CHAR; | |
| private boolean needFlushing = false; | |
| private Decoder(Charset cs) { | |
| super(cs, 1.0f, 1.0f); | |
| } | |
| protected CoderResult implFlush(CharBuffer out) { | |
| if(needFlushing) { | |
| if (out.remaining() < 1) { | |
| return CoderResult.OVERFLOW; | |
| } else { | |
| out.put(contextChar); | |
| } | |
| } | |
| contextChar = INVALID_CHAR; | |
| needFlushing = false; | |
| return CoderResult.UNDERFLOW; | |
| } | |
| /* Rules: | |
| * 1) ATR,EXT,following character to be replaced with '\ufffd' | |
| * 2) Halant + Halant => '\u094d' (Virama) + '\u200c'(ZWNJ) | |
| * 3) Halant + Nukta => '\u094d' (Virama) + '\u200d'(ZWJ) | |
| */ | |
| private CoderResult decodeArrayLoop(ByteBuffer src, | |
| CharBuffer dst) | |
| { | |
| byte[] sa = src.array(); | |
| int sp = src.arrayOffset() + src.position(); | |
| int sl = src.arrayOffset() + src.limit(); | |
| char[] da = dst.array(); | |
| int dp = dst.arrayOffset() + dst.position(); | |
| int dl = dst.arrayOffset() + dst.limit(); | |
| try { | |
| while (sp < sl) { | |
| int index = sa[sp]; | |
| index = ( index < 0 )? ( index + 255 ):index; | |
| char currentChar = directMapTable[index]; | |
| // if the contextChar is either ATR || EXT | |
| // set the output to '\ufffd' | |
| if(contextChar == '\ufffd') { | |
| if (dl - dp < 1) | |
| return CoderResult.OVERFLOW; | |
| da[dp++] = '\ufffd'; | |
| contextChar = INVALID_CHAR; | |
| needFlushing = false; | |
| sp++; | |
| continue; | |
| } | |
| switch(currentChar) { | |
| case '\u0901': | |
| case '\u0907': | |
| case '\u0908': | |
| case '\u090b': | |
| case '\u093f': | |
| case '\u0940': | |
| case '\u0943': | |
| case '\u0964': | |
| if(needFlushing) { | |
| if (dl - dp < 1) | |
| return CoderResult.OVERFLOW; | |
| da[dp++] = contextChar; | |
| contextChar = currentChar; | |
| sp++; | |
| continue; | |
| } | |
| contextChar = currentChar; | |
| needFlushing = true; | |
| sp++; | |
| continue; | |
| case NUKTA_CHAR: | |
| if (dl - dp < 1) | |
| return CoderResult.OVERFLOW; | |
| switch(contextChar) { | |
| case '\u0901': | |
| da[dp++] = '\u0950'; | |
| break; | |
| case '\u0907': | |
| da[dp++] = '\u090c'; | |
| break; | |
| case '\u0908': | |
| da[dp++] = '\u0961'; | |
| break; | |
| case '\u090b': | |
| da[dp++] = '\u0960'; | |
| break; | |
| case '\u093f': | |
| da[dp++] = '\u0962'; | |
| break; | |
| case '\u0940': | |
| da[dp++] = '\u0963'; | |
| break; | |
| case '\u0943': | |
| da[dp++] = '\u0944'; | |
| break; | |
| case '\u0964': | |
| da[dp++] = '\u093d'; | |
| break; | |
| case HALANT_CHAR: | |
| if(needFlushing) { | |
| da[dp++] = contextChar; | |
| contextChar = currentChar; | |
| sp++; | |
| continue; | |
| } | |
| da[dp++] = ZWJ_CHAR; | |
| break; | |
| default: | |
| if(needFlushing) { | |
| da[dp++] = contextChar; | |
| contextChar = currentChar; | |
| sp++; | |
| continue; | |
| } | |
| da[dp++] = NUKTA_CHAR; | |
| } | |
| break; | |
| case HALANT_CHAR: | |
| if (dl - dp < 1) | |
| return CoderResult.OVERFLOW; | |
| if(needFlushing) { | |
| da[dp++] = contextChar; | |
| contextChar = currentChar; | |
| sp++; | |
| continue; | |
| } | |
| if(contextChar == HALANT_CHAR) { | |
| da[dp++] = ZWNJ_CHAR; | |
| break; | |
| } | |
| da[dp++] = HALANT_CHAR; | |
| break; | |
| case INVALID_CHAR: | |
| if(needFlushing) { | |
| if (dl - dp < 1) | |
| return CoderResult.OVERFLOW; | |
| da[dp++] = contextChar; | |
| contextChar = currentChar; | |
| sp++; | |
| continue; | |
| } | |
| return CoderResult.unmappableForLength(1); | |
| default: | |
| if (dl - dp < 1) | |
| return CoderResult.OVERFLOW; | |
| if(needFlushing) { | |
| da[dp++] = contextChar; | |
| contextChar = currentChar; | |
| sp++; | |
| continue; | |
| } | |
| da[dp++] = currentChar; | |
| break; | |
| }//end switch | |
| contextChar = currentChar; | |
| needFlushing = false; | |
| sp++; | |
| } | |
| return CoderResult.UNDERFLOW; | |
| } finally { | |
| src.position(sp - src.arrayOffset()); | |
| dst.position(dp - dst.arrayOffset()); | |
| } | |
| } | |
| private CoderResult decodeBufferLoop(ByteBuffer src, | |
| CharBuffer dst) | |
| { | |
| int mark = src.position(); | |
| try { | |
| while (src.hasRemaining()) { | |
| int index = src.get(); | |
| index = ( index < 0 )? ( index + 255 ):index; | |
| char currentChar = directMapTable[index]; | |
| // if the contextChar is either ATR || EXT | |
| // set the output to '\ufffd' | |
| if(contextChar == '\ufffd') { | |
| if (dst.remaining() < 1) | |
| return CoderResult.OVERFLOW; | |
| dst.put('\ufffd'); | |
| contextChar = INVALID_CHAR; | |
| needFlushing = false; | |
| mark++; | |
| continue; | |
| } | |
| switch(currentChar) { | |
| case '\u0901': | |
| case '\u0907': | |
| case '\u0908': | |
| case '\u090b': | |
| case '\u093f': | |
| case '\u0940': | |
| case '\u0943': | |
| case '\u0964': | |
| if(needFlushing) { | |
| if (dst.remaining() < 1) | |
| return CoderResult.OVERFLOW; | |
| dst.put(contextChar); | |
| contextChar = currentChar; | |
| mark++; | |
| continue; | |
| } | |
| contextChar = currentChar; | |
| needFlushing = true; | |
| mark++; | |
| continue; | |
| case NUKTA_CHAR: | |
| if (dst.remaining() < 1) | |
| return CoderResult.OVERFLOW; | |
| switch(contextChar) { | |
| case '\u0901': | |
| dst.put('\u0950'); | |
| break; | |
| case '\u0907': | |
| dst.put('\u090c'); | |
| break; | |
| case '\u0908': | |
| dst.put('\u0961'); | |
| break; | |
| case '\u090b': | |
| dst.put('\u0960'); | |
| break; | |
| case '\u093f': | |
| dst.put('\u0962'); | |
| break; | |
| case '\u0940': | |
| dst.put('\u0963'); | |
| break; | |
| case '\u0943': | |
| dst.put('\u0944'); | |
| break; | |
| case '\u0964': | |
| dst.put('\u093d'); | |
| break; | |
| case HALANT_CHAR: | |
| if(needFlushing) { | |
| dst.put(contextChar); | |
| contextChar = currentChar; | |
| mark++; | |
| continue; | |
| } | |
| dst.put(ZWJ_CHAR); | |
| break; | |
| default: | |
| if(needFlushing) { | |
| dst.put(contextChar); | |
| contextChar = currentChar; | |
| mark++; | |
| continue; | |
| } | |
| dst.put(NUKTA_CHAR); | |
| } | |
| break; | |
| case HALANT_CHAR: | |
| if (dst.remaining() < 1) | |
| return CoderResult.OVERFLOW; | |
| if(needFlushing) { | |
| dst.put(contextChar); | |
| contextChar = currentChar; | |
| mark++; | |
| continue; | |
| } | |
| if(contextChar == HALANT_CHAR) { | |
| dst.put(ZWNJ_CHAR); | |
| break; | |
| } | |
| dst.put(HALANT_CHAR); | |
| break; | |
| case INVALID_CHAR: | |
| if(needFlushing) { | |
| if (dst.remaining() < 1) | |
| return CoderResult.OVERFLOW; | |
| dst.put(contextChar); | |
| contextChar = currentChar; | |
| mark++; | |
| continue; | |
| } | |
| return CoderResult.unmappableForLength(1); | |
| default: | |
| if (dst.remaining() < 1) | |
| return CoderResult.OVERFLOW; | |
| if(needFlushing) { | |
| dst.put(contextChar); | |
| contextChar = currentChar; | |
| mark++; | |
| continue; | |
| } | |
| dst.put(currentChar); | |
| break; | |
| }//end switch | |
| contextChar = currentChar; | |
| needFlushing = false; | |
| mark++; | |
| } | |
| return CoderResult.UNDERFLOW; | |
| } finally { | |
| src.position(mark); | |
| } | |
| } | |
| protected CoderResult decodeLoop(ByteBuffer src, | |
| CharBuffer dst) | |
| { | |
| if (src.hasArray() && dst.hasArray()) | |
| return decodeArrayLoop(src, dst); | |
| else | |
| return decodeBufferLoop(src, dst); | |
| } | |
| } | |
| private static class Encoder extends CharsetEncoder { | |
| private static final byte NO_CHAR = (byte)255; | |
| //private static CharToByteISCII91 c2b = new CharToByteISCII91(); | |
| //private static final byte[] directMapTable = c2b.getISCIIEncoderMap(); | |
| private final Surrogate.Parser sgp = new Surrogate.Parser(); | |
| private Encoder(Charset cs) { | |
| super(cs, 2.0f, 2.0f); | |
| } | |
| public boolean canEncode(char ch) { | |
| //check for Devanagari range,ZWJ,ZWNJ and ASCII range. | |
| return ((ch >= '\u0900' && ch <= '\u097f' && | |
| encoderMappingTable[2*(ch-'\u0900')] != NO_CHAR) || | |
| (ch == '\u200d') || | |
| (ch == '\u200c') || | |
| (ch <= '\u007f')); | |
| } | |
| private CoderResult encodeArrayLoop(CharBuffer src, | |
| ByteBuffer dst) | |
| { | |
| char[] sa = src.array(); | |
| int sp = src.arrayOffset() + src.position(); | |
| int sl = src.arrayOffset() + src.limit(); | |
| byte[] da = dst.array(); | |
| int dp = dst.arrayOffset() + dst.position(); | |
| int dl = dst.arrayOffset() + dst.limit(); | |
| try { | |
| char inputChar; | |
| while (sp < sl) { | |
| int index = Integer.MIN_VALUE; | |
| inputChar = sa[sp]; | |
| if (inputChar >= 0x0000 && inputChar <= 0x007f) { | |
| if (dl - dp < 1) | |
| return CoderResult.OVERFLOW; | |
| da[dp++] = (byte) inputChar; | |
| sp++; | |
| continue; | |
| } | |
| // if inputChar == ZWJ replace it with halant | |
| // if inputChar == ZWNJ replace it with Nukta | |
| if (inputChar == 0x200c) { | |
| inputChar = HALANT_CHAR; | |
| } | |
| else if (inputChar == 0x200d) { | |
| inputChar = NUKTA_CHAR; | |
| } | |
| if (inputChar >= 0x0900 && inputChar <= 0x097f) { | |
| index = ((int)(inputChar) - 0x0900)*2; | |
| } | |
| if (Character.isSurrogate(inputChar)) { | |
| if (sgp.parse(inputChar, sa, sp, sl) < 0) | |
| return sgp.error(); | |
| return sgp.unmappableResult(); | |
| } | |
| if (index == Integer.MIN_VALUE || | |
| encoderMappingTable[index] == NO_CHAR) { | |
| return CoderResult.unmappableForLength(1); | |
| } else { | |
| if(encoderMappingTable[index + 1] == NO_CHAR) { | |
| if(dl - dp < 1) | |
| return CoderResult.OVERFLOW; | |
| da[dp++] = encoderMappingTable[index]; | |
| } else { | |
| if(dl - dp < 2) | |
| return CoderResult.OVERFLOW; | |
| da[dp++] = encoderMappingTable[index]; | |
| da[dp++] = encoderMappingTable[index + 1]; | |
| } | |
| sp++; | |
| } | |
| } | |
| return CoderResult.UNDERFLOW; | |
| } finally { | |
| src.position(sp - src.arrayOffset()); | |
| dst.position(dp - dst.arrayOffset()); | |
| } | |
| } | |
| private CoderResult encodeBufferLoop(CharBuffer src, | |
| ByteBuffer dst) | |
| { | |
| int mark = src.position(); | |
| try { | |
| char inputChar; | |
| while (src.hasRemaining()) { | |
| int index = Integer.MIN_VALUE; | |
| inputChar = src.get(); | |
| if (inputChar >= 0x0000 && inputChar <= 0x007f) { | |
| if (dst.remaining() < 1) | |
| return CoderResult.OVERFLOW; | |
| dst.put((byte) inputChar); | |
| mark++; | |
| continue; | |
| } | |
| // if inputChar == ZWJ replace it with halant | |
| // if inputChar == ZWNJ replace it with Nukta | |
| if (inputChar == 0x200c) { | |
| inputChar = HALANT_CHAR; | |
| } | |
| else if (inputChar == 0x200d) { | |
| inputChar = NUKTA_CHAR; | |
| } | |
| if (inputChar >= 0x0900 && inputChar <= 0x097f) { | |
| index = ((int)(inputChar) - 0x0900)*2; | |
| } | |
| if (Character.isSurrogate(inputChar)) { | |
| if (sgp.parse(inputChar, src) < 0) | |
| return sgp.error(); | |
| return sgp.unmappableResult(); | |
| } | |
| if (index == Integer.MIN_VALUE || | |
| encoderMappingTable[index] == NO_CHAR) { | |
| return CoderResult.unmappableForLength(1); | |
| } else { | |
| if(encoderMappingTable[index + 1] == NO_CHAR) { | |
| if(dst.remaining() < 1) | |
| return CoderResult.OVERFLOW; | |
| dst.put(encoderMappingTable[index]); | |
| } else { | |
| if(dst.remaining() < 2) | |
| return CoderResult.OVERFLOW; | |
| dst.put(encoderMappingTable[index]); | |
| dst.put(encoderMappingTable[index + 1]); | |
| } | |
| } | |
| mark++; | |
| } | |
| return CoderResult.UNDERFLOW; | |
| } finally { | |
| src.position(mark); | |
| } | |
| } | |
| protected CoderResult encodeLoop(CharBuffer src, | |
| ByteBuffer dst) | |
| { | |
| if (src.hasArray() && dst.hasArray()) | |
| return encodeArrayLoop(src, dst); | |
| else | |
| return encodeBufferLoop(src, dst); | |
| } | |
| } | |
| } |