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// This file is part of TagSoup and is Copyright 2002-2008 by John Cowan.
//
// TagSoup is licensed under the Apache License,
// Version 2.0. You may obtain a copy of this license at
// http://www.apache.org/licenses/LICENSE-2.0 . You may also have
// additional legal rights not granted by this license.
//
// TagSoup is distributed in the hope that it will be useful, but
// unless required by applicable law or agreed to in writing, TagSoup
// is distributed on an "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS
// OF ANY KIND, either express or implied; not even the implied warranty
// of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.
//
//
// This file is part of TagSoup.
//
// This program is free software; you can redistribute it and/or modify
// it under the terms of the GNU General Public License as published by
// the Free Software Foundation; either version 2 of the License, or
// (at your option) any later version. You may also distribute
// and/or modify it under version 2.1 of the Academic Free License.
//
// This program 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.
//
//
// PYX Scanner
package org.ccil.cowan.tagsoup;
import java.io.*;
import org.xml.sax.SAXException;
/**
A Scanner that accepts PYX format instead of HTML.
Useful primarily for debugging.
**/
public class PYXScanner implements Scanner {
public void resetDocumentLocator(String publicid, String systemid) {
// Need this method for interface compatibility, but note
// that PyxScanner does not implement Locator.
}
public void scan(Reader r, ScanHandler h) throws IOException, SAXException {
BufferedReader br = new BufferedReader(r);
String s;
char[] buff = null;
boolean instag = false;
while ((s = br.readLine()) != null) {
int size = s.length();
if (buff == null || buff.length < size) {
buff = new char[size];
}
s.getChars(0, size, buff, 0);
switch (buff[0]) {
case '(':
if (instag) {
h.stagc(buff, 0, 0);
instag = false;
}
h.gi(buff, 1, size - 1);
instag = true;
break;
case ')':
if (instag) {
h.stagc(buff, 0, 0);
instag = false;
}
h.etag(buff, 1, size - 1);
break;
case '?':
if (instag) {
h.stagc(buff, 0, 0);
instag = false;
}
h.pi(buff, 1, size - 1);
break;
case 'A':
int sp = s.indexOf(' ');
h.aname(buff, 1, sp - 1);
h.aval(buff, sp + 1, size - sp - 1);
break;
case '-':
if (instag) {
h.stagc(buff, 0, 0);
instag = false;
}
if (s.equals("-\\n")) {
buff[0] = '\n';
h.pcdata(buff, 0, 1);
}
else {
// FIXME:
// Does not decode \t and \\ in input
h.pcdata(buff, 1, size - 1);
}
break;
case 'E':
if (instag) {
h.stagc(buff, 0, 0);
instag = false;
}
h.entity(buff, 1, size - 1);
break;
default:
// System.err.print("Gotcha ");
// System.err.print(s);
// System.err.print('\n');
break;
}
}
h.eof(buff, 0, 0);
}
public void startCDATA() { }
public static void main(String[] argv) throws IOException, SAXException {
Scanner s = new PYXScanner();
Reader r = new InputStreamReader(System.in, "UTF-8");
Writer w = new BufferedWriter(new OutputStreamWriter(System.out, "UTF-8"));
s.scan(r, new PYXWriter(w));
}
}
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