/*
* Copyright 2004-2014 SmartBear Software
*
* Licensed under the EUPL, Version 1.1 or - as soon as they will be approved by the European Commission - subsequent
* versions of the EUPL (the "Licence");
* You may not use this work except in compliance with the Licence.
* You may obtain a copy of the Licence at:
*
* http://ec.europa.eu/idabc/eupl
*
* Unless required by applicable law or agreed to in writing, software distributed under the Licence is
* distributed on an "AS IS" basis, WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either
* express or implied. See the Licence for the specific language governing permissions and limitations
* under the Licence.
*/
package org.syntax.jedit.tokenmarker;
import javax.swing.text.Segment;
import org.syntax.jedit.KeywordMap;
import org.syntax.jedit.SyntaxUtilities;
/**
* HTML token marker.
*
* @author Slava Pestov
* @version $Id: HTMLTokenMarker.java,v 1.34 1999/12/13 03:40:29 sp 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;
}
}