/*
* 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;
/*
* HTMLTokenMarker.java - HTML token marker
* Copyright (C) 1998, 1999 Slava Pestov
*
* 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;
/**
* HTML token marker.
*
* @author Slava Pestov, Ingo Mierswa
* @version $Id: HTMLTokenMarker.java,v 1.3 2008/05/09 19:22:56 ingomierswa Exp $
*/
public class HTMLTokenMarker extends TokenMarker {
public static final byte JAVASCRIPT = Token.INTERNAL_FIRST;
public HTMLTokenMarker() {
this(true);
}
public HTMLTokenMarker(boolean js) {
this.js = js;
keywords = JavaScriptTokenMarker.getKeywords();
}
public byte markTokensImpl(byte token, Segment line, int lineIndex) {
char[] array = line.array;
int offset = line.offset;
lastOffset = offset;
lastKeyword = offset;
int length = line.count + offset;
boolean backslash = false;
loop: for (int i = offset; i < length; i++) {
int i1 = (i + 1);
char c = array[i];
if (c == '\\') {
backslash = !backslash;
continue;
}
switch (token) {
case Token.NULL: // HTML text
backslash = false;
switch (c) {
case '<':
addToken(i - lastOffset, token);
lastOffset = lastKeyword = i;
if (SyntaxUtilities.regionMatches(false, line, i1, "!--")) {
i += 3;
token = Token.COMMENT1;
} else if (js && SyntaxUtilities.regionMatches(true, line, i1, "script>")) {
addToken(8, Token.KEYWORD1);
lastOffset = lastKeyword = (i += 8);
token = JAVASCRIPT;
} else {
token = Token.KEYWORD1;
}
break;
case '&':
addToken(i - lastOffset, token);
lastOffset = lastKeyword = i;
token = Token.KEYWORD2;
break;
}
break;
case Token.KEYWORD1: // Inside a tag
backslash = false;
if (c == '>') {
addToken(i1 - lastOffset, token);
lastOffset = lastKeyword = i1;
token = Token.NULL;
}
break;
case Token.KEYWORD2: // Inside an entity
backslash = false;
if (c == ';') {
addToken(i1 - lastOffset, token);
lastOffset = lastKeyword = i1;
token = Token.NULL;
break;
}
break;
case Token.COMMENT1: // Inside a comment
backslash = false;
if (SyntaxUtilities.regionMatches(false, line, i, "-->")) {
addToken((i + 3) - lastOffset, token);
lastOffset = lastKeyword = i + 3;
token = Token.NULL;
}
break;
case JAVASCRIPT: // Inside a JavaScript
switch (c) {
case '<':
backslash = false;
doKeyword(line, i, c);
if (SyntaxUtilities.regionMatches(true, line, i1, "/script>")) {
addToken(i - lastOffset, Token.NULL);
addToken(9, Token.KEYWORD1);
lastOffset = lastKeyword = (i += 9);
token = Token.NULL;
}
break;
case '"':
if (backslash)
backslash = false;
else {
doKeyword(line, i, c);
addToken(i - lastOffset, Token.NULL);
lastOffset = lastKeyword = i;
token = Token.LITERAL1;
}
break;
case '\'':
if (backslash)
backslash = false;
else {
doKeyword(line, i, c);
addToken(i - lastOffset, Token.NULL);
lastOffset = lastKeyword = i;
token = Token.LITERAL2;
}
break;
case '/':
backslash = false;
doKeyword(line, i, c);
if (length - i > 1) {
addToken(i - lastOffset, Token.NULL);
lastOffset = lastKeyword = i;
if (array[i1] == '/') {
addToken(length - i, Token.COMMENT2);
lastOffset = lastKeyword = length;
break loop;
} else if (array[i1] == '*') {
token = Token.COMMENT2;
}
}
break;
default:
backslash = false;
if (!Character.isLetterOrDigit(c) && c != '_')
doKeyword(line, i, c);
break;
}
break;
case Token.LITERAL1: // JavaScript "..."
if (backslash)
backslash = false;
else if (c == '"') {
addToken(i1 - lastOffset, Token.LITERAL1);
lastOffset = lastKeyword = i1;
token = JAVASCRIPT;
}
break;
case Token.LITERAL2: // JavaScript '...'
if (backslash)
backslash = false;
else if (c == '\'') {
addToken(i1 - lastOffset, Token.LITERAL1);
lastOffset = lastKeyword = i1;
token = JAVASCRIPT;
}
break;
case Token.COMMENT2: // Inside a JavaScript comment
backslash = false;
if (c == '*' && length - i > 1 && array[i1] == '/') {
addToken((i += 2) - lastOffset, Token.COMMENT2);
lastOffset = lastKeyword = i;
token = JAVASCRIPT;
}
break;
default:
throw new InternalError("Invalid state: " + token);
}
}
switch (token) {
case Token.LITERAL1:
case Token.LITERAL2:
addToken(length - lastOffset, Token.INVALID);
token = JAVASCRIPT;
break;
case Token.KEYWORD2:
addToken(length - lastOffset, Token.INVALID);
token = Token.NULL;
break;
case JAVASCRIPT:
doKeyword(line, length, '\0');
addToken(length - lastOffset, Token.NULL);
break;
default:
addToken(length - lastOffset, token);
break;
}
return token;
}
// private members
private KeywordMap keywords;
private boolean js;
private int lastOffset;
private int lastKeyword;
private boolean doKeyword(Segment line, int i, char c) {
int i1 = i + 1;
int len = i - lastKeyword;
byte id = keywords.lookup(line, lastKeyword, len);
if (id != Token.NULL) {
if (lastKeyword != lastOffset)
addToken(lastKeyword - lastOffset, Token.NULL);
addToken(len, id);
lastOffset = i;
}
lastKeyword = i1;
return false;
}
}