/*
* RapidMiner
*
* Copyright (C) 2001-2008 by Rapid-I and the contributors
*
* Complete list of developers available at our web site:
*
* http://rapid-i.com
*
* This program is free software: you can redistribute it and/or modify
* it under the terms of the GNU Affero General Public License as published by
* the Free Software Foundation, either version 3 of the License, or
* (at your option) any later version.
*
* 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. See the
* GNU Affero General Public License for more details.
*
* You should have received a copy of the GNU Affero General Public License
* along with this program. If not, see http://www.gnu.org/licenses/.
*/
package com.rapidminer.gui.tools.syntax;
/*
* XMLTokenMarker.java - XML token marker
* Copyright (C) 1998, 1999 Slava Pestov
* Copyright (C) 2001 Tom Bradford
*
* You may use and modify this package for any purpose. Redistribution is
* permitted, in both source and binary form, provided that this notice
* remains intact in all source distributions of this package.
*/
import javax.swing.text.Segment;
/**
* XML Token Marker Rewrite
*
* @author Tom Bradford, Ingo Mierswa
* @version $Id: XMLTokenMarker.java,v 1.3 2008/05/09 19:22:57 ingomierswa Exp $
*/
public class XMLTokenMarker extends TokenMarker {
public XMLTokenMarker() {
}
public byte markTokensImpl(byte token, Segment line, int lineIndex) {
char[] array = line.array;
int offset = line.offset;
int lastOffset = offset;
int length = line.count + offset;
// Ugly hack to handle multi-line tags
boolean sk1 = token == Token.KEYWORD1;
for (int i = offset; i < length; i++) {
int ip1 = i + 1;
char c = array[i];
switch (token) {
case Token.NULL: // text
switch (c) {
case '<':
addToken(i - lastOffset, token);
lastOffset = i;
if (SyntaxUtilities.regionMatches(false, line, ip1, "!--")) {
i += 3;
token = Token.COMMENT1;
} else if (array[ip1] == '!') {
i += 1;
token = Token.COMMENT2;
} else if (array[ip1] == '?') {
i += 1;
token = Token.KEYWORD3;
} else
token = Token.KEYWORD1;
break;
case '&':
addToken(i - lastOffset, token);
lastOffset = i;
token = Token.LABEL;
break;
}
break;
case Token.KEYWORD1: // tag
switch (c) {
case '>':
addToken(ip1 - lastOffset, token);
lastOffset = ip1;
token = Token.NULL;
sk1 = false;
break;
case ' ':
case '\t':
addToken(i - lastOffset, token);
lastOffset = i;
token = Token.KEYWORD2;
sk1 = false;
break;
default:
if (sk1) {
token = Token.KEYWORD2;
sk1 = false;
}
break;
}
break;
case Token.KEYWORD2: // attribute
switch (c) {
case '>':
addToken(ip1 - lastOffset, token);
lastOffset = ip1;
token = Token.NULL;
break;
case '/':
addToken(i - lastOffset, token);
lastOffset = i;
token = Token.KEYWORD1;
break;
case '=':
addToken(i - lastOffset, token);
lastOffset = i;
token = Token.OPERATOR;
}
break;
case Token.OPERATOR: // equal for attribute
switch (c) {
case '\"':
case '\'':
addToken(i - lastOffset, token);
lastOffset = i;
if (c == '\"')
token = Token.LITERAL1;
else
token = Token.LITERAL2;
break;
}
break;
case Token.LITERAL1:
case Token.LITERAL2: // strings
if ((token == Token.LITERAL1 && c == '\"') || (token == Token.LITERAL2 && c == '\'')) {
addToken(ip1 - lastOffset, token);
lastOffset = ip1;
token = Token.KEYWORD1;
}
break;
case Token.LABEL: // entity
if (c == ';') {
addToken(ip1 - lastOffset, token);
lastOffset = ip1;
token = Token.NULL;
break;
}
break;
case Token.COMMENT1: // Inside a comment
if (SyntaxUtilities.regionMatches(false, line, i, "-->")) {
addToken((i + 3) - lastOffset, token);
lastOffset = i + 3;
token = Token.NULL;
}
break;
case Token.COMMENT2: // Inside a declaration
if (SyntaxUtilities.regionMatches(false, line, i, ">")) {
addToken(ip1 - lastOffset, token);
lastOffset = ip1;
token = Token.NULL;
}
break;
case Token.KEYWORD3: // Inside a processor instruction
if (SyntaxUtilities.regionMatches(false, line, i, "?>")) {
addToken((i + 2) - lastOffset, token);
lastOffset = i + 2;
token = Token.NULL;
}
break;
default:
throw new InternalError("Invalid state: " + token);
}
}
switch (token) {
case Token.LABEL:
addToken(length - lastOffset, Token.INVALID);
token = Token.NULL;
break;
default:
addToken(length - lastOffset, token);
break;
}
return token;
}
}