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/**
* Copyright (C) 2004, 2005, 2006, 2007, 2008, 2009, 2010, 2011 Free Software
* Foundation, Inc.
*
* Author: Oliver Hitz
*
* This file is part of GNU Libidn.
*
* This library is free software; you can redistribute it and/or
* modify it under the terms of the GNU Lesser General Public License
* as published by the Free Software Foundation; either version 2.1 of
* the License, or (at your option) any later version.
*
* This library 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
* Lesser General Public License for more details.
*
* You should have received a copy of the GNU Lesser General Public
* License along with this library; if not, write to the Free Software
* Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA
* 02110-1301, USA.
*/
import java.io.BufferedReader;
import java.io.File;
import java.io.FileReader;
import java.io.FileWriter;
import java.io.PrintWriter;
import java.util.StringTokenizer;
public class GenerateRFC3454
{
static class Range
{
int t, f;
public Range(String r)
{
if (r.length() == 9) {
f = Integer.parseInt(r.substring(0, 4), 16);
t = Integer.parseInt(r.substring(5, 9), 16);
} else {
f = Integer.parseInt(r.substring(0, 5), 16);
t = Integer.parseInt(r.substring(6, 11), 16);
}
}
public boolean hasNext()
{
return (f <= t);
}
public String next()
{
StringBuffer s = new StringBuffer(Integer.toHexString(f));
while (s.length() < 4) {
s.insert(0, '0');
}
f++;
return s.toString();
}
}
public static void main(String[] arg)
throws Exception
{
File f = new File("rfc3454.txt");
if (!f.exists()) {
System.err.println("Unable to find rfc3454.txt.");
System.err.println("Please download this file from:");
System.err.println("http://www.ietf.org/rfc/rfc3454.txt");
System.exit(1);
}
System.out.print("Creating RFC3454.java...");
BufferedReader r = new BufferedReader(new FileReader(f));
PrintWriter w = new PrintWriter(new FileWriter("RFC3454.java"));
w.println("/* This file is automatically generated. DO NOT EDIT!");
w.println(" Instead, edit GenerateRFC3454.java and re-run. */");
w.println();
w.println("package gnu.inet.encoding;");
w.println();
w.println("/**");
w.println(" * Auto-generated class containing StringPrep mapping tables.");
w.println(" */");
w.println("public class RFC3454");
w.println("{");
int n = 0;
String t = null;
StringBuffer o1 = null;
StringBuffer o2 = null;
while (true) {
String l = r.readLine();
if (null == l) {
break;
}
l = l.trim();
if (l.equals("")) {
// Ignore empty line
} else if (-1 != l.indexOf("\u000c")) {
// Ignore FF
} else if (0 == l.indexOf("RFC")) {
// Ignore page header
} else if (0 == l.indexOf("Hoffman & Blanchet")) {
// Ignore page footer
} else if (-1 != l.indexOf("----- Start Table ")) {
// Start of a table
t = l.substring(l.indexOf("Table")+6, l.lastIndexOf("-----")-1);
o1 = new StringBuffer();
o2 = new StringBuffer();
} else if (-1 != l.indexOf("----- End Table ")) {
// End of a table
if ("A.1".equals(t)) {
w.println(" final static char[][] A1 = new char[][] {\n"+o1.toString()+" };\n");
} else if ("B.1".equals(t)) {
w.println(" final static char[] B1 = new char[] {\n"+o1.toString()+" };\n");
} else if ("B.2".equals(t)) {
w.println(" final static char[] B2search = new char[] {\n"+o1.toString()+" };\n");
w.println(" final static String[] B2replace = new String[] {\n"+o2.toString()+" };\n");
} else if ("B.3".equals(t)) {
w.println(" final static char[] B3search = new char[] {\n"+o1.toString()+" };\n");
w.println(" final static String[] B3replace = new String[] {\n"+o2.toString()+" };\n");
} else if ("C.1.1".equals(t)) {
w.println(" final static char[] C11 = new char[] {\n"+o1.toString()+" };\n");
} else if ("C.1.2".equals(t)) {
w.println(" final static char[] C12 = new char[] {\n"+o1.toString()+" };\n");
} else if ("C.2.1".equals(t)) {
w.println(" final static char[][] C21 = new char[][] {\n"+o1.toString()+" };\n");
} else if ("C.2.2".equals(t)) {
w.println(" final static char[][] C22 = new char[][] {\n"+o1.toString()+" };\n");
} else if ("C.3".equals(t)) {
w.println(" final static char[][] C3 = new char[][] {\n"+o1.toString()+" };\n");
} else if ("C.4".equals(t)) {
w.println(" final static char[][] C4 = new char[][] {\n"+o1.toString()+" };\n");
} else if ("C.5".equals(t)) {
w.println(" final static char[][] C5 = new char[][] {\n"+o1.toString()+" };\n");
} else if ("C.6".equals(t)) {
w.println(" final static char[][] C6 = new char[][] {\n"+o1.toString()+" };\n");
} else if ("C.7".equals(t)) {
w.println(" final static char[][] C7 = new char[][] {\n"+o1.toString()+" };\n");
} else if ("C.8".equals(t)) {
w.println(" final static char[][] C8 = new char[][] {\n"+o1.toString()+" };\n");
} else if ("D.1".equals(t)) {
w.println(" final static char[][] D1 = new char[][] {\n"+o1.toString()+" };\n");
} else if ("D.2".equals(t)) {
w.println(" final static char[][] D2 = new char[][] {\n"+o1.toString()+" };\n");
}
t = null;
} else if (null != t) {
// Filter comments
if (-1 != l.lastIndexOf(";")) {
String c = l.substring(l.lastIndexOf(";")).trim();
try {
Integer.parseInt(c, 16);
} catch (NumberFormatException e) {
l = l.substring(0, l.lastIndexOf(";"));
}
}
if ("A.1".equals(t)) {
if (4 == l.length()) {
o1.append(" new char[] { '\\u");
o1.append(l);
o1.append("' },\n");
} else if (5 == l.length()) {
// Skip characters outside the range of Java unicode
} else if (9 == l.length()) {
o1.append(" new char[] { '\\u");
o1.append(l.substring(0, 4));
o1.append("', '\\u");
o1.append(l.substring(5, 9));
o1.append("' },\n");
} else if (11 == l.length()) {
// Skip characters outside the range of Java unicode
} else {
System.err.println("Unknown format of A.1 line: "+l);
}
} else if ("B.1".equals(t)) {
StringTokenizer tok = new StringTokenizer(l, " ;");
o1.append(" '\\u"+tok.nextToken()+"',\n");
} else if ("B.2".equals(t) || "B.3".equals(t)) {
StringTokenizer tok = new StringTokenizer(l, "; ");
String c = tok.nextToken();
if (c.length() == 4) {
o1.append(" '\\u"+c+"',\n");
if (tok.hasMoreElements()) {
o2.append(" \"");
while (tok.hasMoreElements()) {
o2.append("\\u"+tok.nextToken());
}
o2.append("\",\n");
} else {
o2.append(" null,\n");
}
}
} else if ("C.1.1".equals(t)) {
o1.append(" '\\u"+l+"',\n");
} else if ("C.1.2".equals(t)) {
o1.append(" '\\u"+l+"',\n");
} else if ("C.2.1".equals(t) || "C.2.2".equals(t) || "C.3".equals(t) || "C.4".equals(t) || "C.5".equals(t) || "C.6".equals(t) || "C.7".equals(t) || "C.8".equals(t) || "D.1".equals(t) || "D.2".equals(t)) {
if (4 == l.length()) {
o1.append(" new char[] { '\\u"+l+"' },\n");
} else if (9 == l.length()) {
o1.append(" new char[] { '\\u");
o1.append(l.substring(0, 4));
o1.append("', '\\u");
o1.append(l.substring(5, 9));
o1.append("' },\n");
}
}
}
n++;
}
w.println("}");
w.close();
System.out.println(" Ok.");
}
}
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