/* * 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. */package org.syntax.jedit.tokenmarker;import org.syntax.jedit.*;import javax.swing.text.Segment;/** * PHP token marker. * * @author Clancy Malcolm * @version $Id: PHPTokenMarker.java,v 1.1 1999/12/14 04:20:35 sp 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;	}}