/*
* Copyright (c) 2010, 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
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*/
package build.tools.charsetmapping;
import java.io.*;
import java.util.ArrayList;
import java.util.Scanner;
import java.util.Formatter;
import java.util.regex.*;
import java.nio.charset.*;
import static build.tools.charsetmapping.Utils.*;
public class EUC_TW {
static char[] toCharArray(int[] db,
int b1Min, int b1Max,
int b2Min, int b2Max)
{
char[] ca = new char[(b1Max - b1Min + 1) * (b2Max - b2Min + 1)];
int off = 0;
for (int b1 = b1Min; b1 <= b1Max; b1++) {
for (int b2 = b2Min; b2 <= b2Max; b2++) {
ca[off++] = (char)(db[b1 * 256 + b2] & 0xffff);
}
}
return ca;
}
static char[] toCharArray(byte[] ba,
int b1Min, int b1Max,
int b2Min, int b2Max)
{
char[] ca = new char[(b1Max - b1Min + 1) * (b2Max - b2Min + 1)];
int off = 0;
for (int b1 = b1Min; b1 <= b1Max; b1++) {
int b2 = b2Min;
while (b2 <= b2Max) {
ca[off++] = (char)(((ba[b1 * 256 + b2++] & 0xff) << 8) |
(ba[b1 * 256 + b2++] & 0xff));
}
}
return ca;
}
private static int initC2BIndex(char[] index) {
int off = 0;
for (int i = 0; i < index.length; i++) {
if (index[i] != 0) {
index[i] = (char)off;
off += 0x100;
} else {
index[i] = UNMAPPABLE_ENCODING;
}
}
return off;
}
private static Pattern euctw = Pattern.compile("(?:8ea)?(\\p{XDigit}++)\\s++(\\p{XDigit}++)?\\s*+.*");
static void genClass(String args[]) throws Exception
{
InputStream is = new FileInputStream(new File(args[0], "euc_tw.map"));
PrintStream ps = new PrintStream(new File(args[1], "EUC_TWMapping.java"),
"ISO-8859-1");
String copyright = getCopyright(new File(args[3]));
// ranges of byte1 and byte2, something should come from a "config" file
int b1Min = 0xa1;
int b1Max = 0xfe;
int b2Min = 0xa1;
int b2Max = 0xfe;
try {
int[][] db = new int[8][0x10000]; // doublebyte
byte[] suppFlag = new byte[0x10000]; // doublebyte
char[] indexC2B = new char[256];
char[] indexC2BSupp = new char[256];
for (int i = 0; i < 8; i++)
for (int j = 0; j < 0x10000; j++)
db[i][j] = UNMAPPABLE_DECODING;
Parser p = new Parser(is, euctw);
Entry e = null;
while ((e = p.next()) != null) {
int plane = 0;
if (e.bs >= 0x10000) {
plane = ((e.bs >> 16) & 0xff) - 1;
if (plane >= 14)
plane = 7;
e.bs = e.bs & 0xffff;
}
db[plane][e.bs] = e.cp;
if (e.cp < 0x10000) {
indexC2B[e.cp>>8] = 1;
} else {
indexC2BSupp[(e.cp&0xffff)>>8] = 1;
suppFlag[e.bs] |= (1 << plane);
}
}
StringBuilder sb = new StringBuilder();
Output out = new Output(new Formatter(sb));
out.format(copyright);
out.format("%n// -- This file was mechanically generated: Do not edit! -- //%n");
out.format("package sun.nio.cs.ext;%n%n");
out.format("class EUC_TWMapping {%n%n");
// boundaries
out.format(" final static int b1Min = 0x%x;%n", b1Min);
out.format(" final static int b1Max = 0x%x;%n", b1Max);
out.format(" final static int b2Min = 0x%x;%n", b2Min);
out.format(" final static int b2Max = 0x%x;%n", b2Max);
// b2c tables
out.format("%n final static String[] b2c = {%n");
for (int plane = 0; plane < 8; plane++) {
out.format(" // Plane %d%n", plane);
out.format(toCharArray(db[plane], b1Min, b1Max, b2Min, b2Max),
",");
out.format("%n");
}
out.format(" };%n");
// c2bIndex
out.format("%n static final int C2BSIZE = 0x%x;%n",
initC2BIndex(indexC2B));
out.format("%n static char[] c2bIndex = new char[] {%n");
out.format(indexC2B);
out.format(" };%n");
// c2bIndexSupp
out.format("%n static final int C2BSUPPSIZE = 0x%x;%n",
initC2BIndex(indexC2BSupp));
out.format("%n static char[] c2bSuppIndex = new char[] {%n");
out.format(indexC2BSupp);
out.format(" };%n");
// suppFlags
out.format("%n static String b2cIsSuppStr =%n");
out.format(toCharArray(suppFlag, b1Min, b1Max, b2Min, b2Max),
";");
out.format("}");
out.close();
ps.println(sb.toString());
ps.close();
} catch (Exception x) {
x.printStackTrace();
}
}
}