/*
* 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;
/*
* PHPTokenMarker.java - Token marker for PHP
* Copyright (C) 1999 Clancy Malcolm
* Based on HTMLTokenMarker.java 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;
/**
* PHP token marker.
*
* @author Clancy Malcolm, Ingo Mierswa
* @version $Id: PHPTokenMarker.java,v 1.3 2008/05/09 19:22:56 ingomierswa Exp $
*/
public class PHPTokenMarker extends TokenMarker {
public static final byte SCRIPT = Token.INTERNAL_FIRST;
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 (SyntaxUtilities.regionMatches(true, line, i1, "?php")) {
addToken(5, Token.LABEL);
lastOffset = lastKeyword = (i += 4) + 1;
token = SCRIPT;
} else if (SyntaxUtilities.regionMatches(true, line, i1, "?")) {
addToken(2, Token.LABEL);
lastOffset = lastKeyword = (i += 1) + 1;
token = SCRIPT;
} else if (SyntaxUtilities.regionMatches(true, line, i1, "script>")) {
addToken(8, Token.LABEL);
lastOffset = lastKeyword = (i += 7) + 1;
token = SCRIPT;
} 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);
i += 2;
lastOffset = lastKeyword = i + 1;
token = Token.NULL;
}
break;
case SCRIPT: // Inside a JavaScript or PHP
switch (c) {
case '<':
backslash = false;
doKeyword(line, i, c);
if (SyntaxUtilities.regionMatches(true, line, i1, "/script>")) {
// Ending the script
addToken(i - lastOffset, Token.KEYWORD3);
addToken(9, Token.LABEL);
lastOffset = lastKeyword = (i += 8) + 1;
token = Token.NULL;
} else {
// < operator
addToken(i - lastOffset, Token.KEYWORD3);
addToken(1, Token.OPERATOR);
lastOffset = lastKeyword = i1;
}
break;
case '?':
backslash = false;
doKeyword(line, i, c);
if (array[i1] == '>') {
// Ending the script
addToken(i - lastOffset, Token.KEYWORD3);
addToken(2, Token.LABEL);
lastOffset = lastKeyword = (i += 1) + 1;
token = Token.NULL;
} else {
// ? operator
addToken(i - lastOffset, Token.KEYWORD3);
addToken(1, Token.OPERATOR);
lastOffset = lastKeyword = i1;
}
break;
case '"':
if (backslash)
backslash = false;
else {
doKeyword(line, i, c);
addToken(i - lastOffset, Token.KEYWORD3);
lastOffset = lastKeyword = i;
token = Token.LITERAL1;
}
break;
case '\'':
if (backslash)
backslash = false;
else {
doKeyword(line, i, c);
addToken(i - lastOffset, Token.KEYWORD3);
lastOffset = lastKeyword = i;
token = Token.LITERAL2;
}
break;
case '#':
doKeyword(line, i, c);
addToken(i - lastOffset, Token.KEYWORD3);
addToken(length - i, Token.COMMENT2);
lastOffset = lastKeyword = length;
break loop;
case '/':
backslash = false;
doKeyword(line, i, c);
if (length - i > 1) /* This is the same as if(length > i + 1) */
{
addToken(i - lastOffset, Token.KEYWORD3);
lastOffset = lastKeyword = i;
if (array[i1] == '/') {
addToken(length - i, Token.COMMENT2);
lastOffset = lastKeyword = length;
break loop;
} else if (array[i1] == '*') {
token = Token.COMMENT2;
} else {
// / operator
addToken(i - lastOffset, Token.KEYWORD3);
addToken(1, Token.OPERATOR);
lastOffset = lastKeyword = i1;
}
} else {
// / operator
addToken(i - lastOffset, Token.KEYWORD3);
addToken(1, Token.OPERATOR);
lastOffset = lastKeyword = i1;
}
break;
default:
backslash = false;
if (!Character.isLetterOrDigit(c) && c != '_' && c != '$') {
doKeyword(line, i, c);
if (c != ' ') {
// assume non alphanumeric characters are operators
addToken(i - lastOffset, Token.KEYWORD3);
addToken(1, Token.OPERATOR);
lastOffset = lastKeyword = i1;
}
}
break;
}
break;
case Token.LITERAL1: // Script "..."
if (backslash)
backslash = false;
else if (c == '"') {
addToken(i1 - lastOffset, Token.LITERAL1);
lastOffset = lastKeyword = i1;
token = SCRIPT;
}
break;
case Token.LITERAL2: // Script '...'
if (backslash)
backslash = false;
else if (c == '\'') {
addToken(i1 - lastOffset, Token.LITERAL1);
lastOffset = lastKeyword = i1;
token = SCRIPT;
}
break;
case Token.COMMENT2: // Inside a Script comment
backslash = false;
if (c == '*' && length - i > 1 && array[i1] == '/') {
addToken(i + 2 - lastOffset, Token.COMMENT2);
i += 1;
lastOffset = lastKeyword = i + 1;
token = SCRIPT;
}
break;
default:
throw new InternalError("Invalid state: " + token);
}
}
switch (token) {
case Token.LITERAL1:
addToken(length - lastOffset, Token.LITERAL1);
break;
case Token.LITERAL2:
addToken(length - lastOffset, Token.LITERAL2);
break;
case Token.KEYWORD2:
addToken(length - lastOffset, Token.INVALID);
token = Token.NULL;
break;
case SCRIPT:
doKeyword(line, length, '\0');
addToken(length - lastOffset, Token.KEYWORD3);
break;
default:
addToken(length - lastOffset, token);
break;
}
return token;
}
// private members
private static KeywordMap keywords;
private int lastOffset;
private int lastKeyword;
static {
keywords = new KeywordMap(false);
keywords.add("function", Token.KEYWORD2);
keywords.add("class", Token.KEYWORD2);
keywords.add("var", Token.KEYWORD2);
keywords.add("require", Token.KEYWORD2);
keywords.add("include", Token.KEYWORD2);
keywords.add("else", Token.KEYWORD1);
keywords.add("elseif", Token.KEYWORD1);
keywords.add("do", Token.KEYWORD1);
keywords.add("for", Token.KEYWORD1);
keywords.add("if", Token.KEYWORD1);
keywords.add("endif", Token.KEYWORD1);
keywords.add("in", Token.KEYWORD1);
keywords.add("new", Token.KEYWORD1);
keywords.add("return", Token.KEYWORD1);
keywords.add("while", Token.KEYWORD1);
keywords.add("endwhile", Token.KEYWORD1);
keywords.add("with", Token.KEYWORD1);
keywords.add("break", Token.KEYWORD1);
keywords.add("switch", Token.KEYWORD1);
keywords.add("case", Token.KEYWORD1);
keywords.add("continue", Token.KEYWORD1);
keywords.add("default", Token.KEYWORD1);
keywords.add("echo", Token.KEYWORD1);
keywords.add("false", Token.KEYWORD1);
keywords.add("this", Token.KEYWORD1);
keywords.add("true", Token.KEYWORD1);
keywords.add("array", Token.KEYWORD1);
keywords.add("extends", Token.KEYWORD1);
}
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.KEYWORD3);
addToken(len, id);
lastOffset = i;
}
lastKeyword = i1;
return false;
}
}