Java example source code file (ISCIITest.java)
The ISCIITest.java Java example source code
/*
* Copyright (c) 2008, 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.
*
* 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.
*/
/* @test
@bug 4328178
@summary Performs baseline and regression test on the ISCII91 charset
*/
import java.io.*;
public class ISCIITest {
private static void failureReport() {
System.err.println ("Failed ISCII91 Regression Test");
}
private static void mapEquiv(int start,
int end,
String testName)
throws Exception
{
byte[] singleByte = new byte[1];
byte[] encoded = new byte[1];
for (int i = start; i <= end; i++ ) {
singleByte[0] = (byte) i;
try {
String unicodeStr =
new String (singleByte,"ISCII91");
if (i != (int)unicodeStr.charAt(0)) {
System.err.println ("FAILED ISCII91 Regression test"
+ "input byte is " + i );
throw new Exception("");
}
encoded = unicodeStr.getBytes("ISCII91");
if (encoded[0] != singleByte[0]) {
System.err.println("Encoding error " + testName);
throw new Exception("Failed ISCII91 Regression test");
}
} catch (UnsupportedEncodingException e) {
failureReport();
}
}
return;
}
private static void checkUnmapped(int start,
int end,
String testName)
throws Exception {
byte[] singleByte = new byte[1];
for (int i = start; i <= end; i++ ) {
singleByte[0] = (byte) i;
try {
String unicodeStr = new String (singleByte, "ISCII91");
if (unicodeStr.charAt(0) != '\uFFFD') {
System.err.println("FAILED " + testName +
"input byte is " + i );
throw new Exception ("Failed ISCII91 regression test");
}
} catch (UnsupportedEncodingException e) {
System.err.println("Unsupported character encoding");
}
}
return;
}
/*
*
*/
private static void checkRange(int start, int end,
char[] expectChars,
String testName)
throws Exception {
byte[] singleByte = new byte[1];
byte[] encoded = new byte[1];
int lookupOffset = 0;
for (int i=start; i <= end; i++ ) {
singleByte[0] = (byte) i;
String unicodeStr = new String (singleByte, "ISCII91");
if (unicodeStr.charAt(0) != expectChars[lookupOffset++]) {
throw new Exception ("Failed ISCII91 Regression Test");
}
encoded = unicodeStr.getBytes("ISCII");
}
return;
}
/*
* Tests the ISCII91 Indic character encoding
* as per IS 13194:1991 Bureau of Indian Standards.
*/
private static void test () throws Exception {
try {
// ISCII91 is an 8-byte encoding which retains the ASCII
// mappings in the lower half.
mapEquiv(0, 0x7f, "7 bit ASCII range");
// Checks a range of characters which are unmappable according
// to the standards.
checkUnmapped(0x81, 0x9f, "UNMAPPED");
// Vowel Modifier chars can be used to modify the vowel
// sound of the preceding consonant, vowel or matra character.
byte[] testByte = new byte[1];
char[] vowelModChars = {
'\u0901', // Vowel modifier Chandrabindu
'\u0902', // Vowel modifier Anuswar
'\u0903' // Vowel modifier Visarg
};
checkRange(0xa1, 0xa3, vowelModChars, "INDIC VOWEL MODIFIER CHARS");
char[] expectChars = {
'\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 )
};
checkRange(0xa4, 0xb2, expectChars, "INDIC VOWELS");
char[] expectConsChars =
{
'\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
};
checkRange(0xb3, 0xd8, expectConsChars, "INDIC CONSONANTS");
char[] matraChars = {
'\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 )
};
// Matras or Vowel signs alter the implicit
// vowel sound associated with an Indic consonant.
checkRange(0xda, 0xe7, matraChars, "INDIC MATRAS");
char[] loneContextModifierChars = {
'\u094d', // e8 -- Vowel Omission Sign ( Halant )
'\u093c', // e9 -- Diacritic Sign ( Nukta )
'\u0964' // ea -- Full Stop ( Viram, Northern Scripts )
};
checkRange(0xe8, 0xea,
loneContextModifierChars, "LONE INDIC CONTEXT CHARS");
// Test Indic script numeral chars
// (as opposed to international numerals)
char[] expectNumeralChars =
{
'\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
};
checkRange(0xf1, 0xfa,
expectNumeralChars, "NUMERAL/DIGIT CHARACTERS");
int lookupOffset = 0;
char[] expectNuktaSub = {
'\u0950',
'\u090c',
'\u0961',
'\u0960',
'\u0962',
'\u0963',
'\u0944',
'\u093d'
};
/*
* ISCII uses a number of code extension techniques
* to access a number of lesser used characters.
* The Nukta character which ordinarily signifies
* a diacritic is used in combination with existing
* characters to escape them to a different character.
* value.
*/
byte[] codeExtensionBytes = {
(byte)0xa1 , (byte)0xe9, // Chandrabindu + Nukta
// =>DEVANAGARI OM SIGN
(byte)0xa6 , (byte)0xe9, // Vowel I + Nukta
// => DEVANAGARI VOCALIC L
(byte)0xa7 , (byte)0xe9, // Vowel II + Nukta
// => DEVANAGARI VOCALIC LL
(byte)0xaa , (byte)0xe9, // Vowel RI + Nukta
// => DEVANAGARI VOCALIC RR
(byte)0xdb , (byte)0xe9, // Vowel sign I + Nukta
// => DEVANAGARI VOWEL SIGN VOCALIC L
(byte)0xdc , (byte)0xe9, // Vowel sign II + Nukta
// => DEVANAGARI VOWEL SIGN VOCALIC LL
(byte)0xdf , (byte)0xe9, // Vowel sign Vocalic R + Nukta
// => DEVANAGARI VOWEL SIGN VOCALIC RR
(byte)0xea , (byte)0xe9 // Full stop/Phrase separator + Nukta
// => DEVANAGARI SIGN AVAGRAHA
};
lookupOffset = 0;
byte[] bytePair = new byte[2];
for (int i=0; i < (codeExtensionBytes.length)/2; i++ ) {
bytePair[0] = (byte) codeExtensionBytes[lookupOffset++];
bytePair[1] = (byte) codeExtensionBytes[lookupOffset++];
String unicodeStr = new String (bytePair,"ISCII91");
if (unicodeStr.charAt(0) != expectNuktaSub[i]) {
throw new Exception("Failed Nukta Sub");
}
}
lookupOffset = 0;
byte[] comboBytes = {
(byte)0xe8 , (byte)0xe8, //HALANT + HALANT
(byte)0xe8 , (byte)0xe9 //HALANT + NUKTA aka. Soft Halant
};
char[] expectCombChars = {
'\u094d',
'\u200c',
'\u094d',
'\u200d'
};
for (int i=0; i < (comboBytes.length)/2; i++ ) {
bytePair[0] = (byte) comboBytes[lookupOffset++];
bytePair[1] = (byte) comboBytes[lookupOffset];
String unicodeStr = new String (bytePair, "ISCII91");
if (unicodeStr.charAt(0) != expectCombChars[lookupOffset-1]
&& unicodeStr.charAt(1) != expectCombChars[lookupOffset]) {
throw new Exception("Failed ISCII91 Regression Test");
}
lookupOffset++;
}
} catch (UnsupportedEncodingException e) {
System.err.println ("ISCII91 encoding not supported");
throw new Exception ("Failed ISCII91 Regression Test");
}
}
public static void main (String[] args) throws Exception {
test();
}
}
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