/* * MakefileTokenMarker.java - Makefile 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. */package org.syntax.jedit.tokenmarker;import javax.swing.text.Segment;/** * Makefile token marker. * * @author Slava Pestov * @version $Id: MakefileTokenMarker.java,v 1.18 1999/12/13 03:40:30 sp Exp $ */public class MakefileTokenMarker extends TokenMarker{	// public members	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;		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:				switch(c)				{				case ':': case '=': case ' ': case '\t':					backslash = false;					if(lastOffset == offset)					{						addToken(i1 - lastOffset,Token.KEYWORD1);						lastOffset = i1;					}					break;				case '#':					if(backslash)						backslash = false;					else					{						addToken(i - lastOffset,token);						addToken(length - i,Token.COMMENT1);						lastOffset = length;						break loop;					}					break;				case '$':					if(backslash)						backslash = false;					else if(lastOffset != offset)					{						addToken(i - lastOffset,token);						lastOffset = i;						if(length - i > 1)						{							char c1 = array[i1];							if(c1 == '(' || c1 == '{')								token = Token.KEYWORD2;							else							{								addToken(2,Token.KEYWORD2);								lastOffset += 2;								i++;							}						}					}					break;				case '"':					if(backslash)						backslash = false;					else					{						addToken(i - lastOffset,token);						token = Token.LITERAL1;						lastOffset = i;					}					break;				case '\'':					if(backslash)						backslash = false;					else					{						addToken(i - lastOffset,token);						token = Token.LITERAL2;						lastOffset = i;					}					break;				default:					backslash = false;					break;				}			case Token.KEYWORD2:				backslash = false;				if(c == ')' || c == '}')				{					addToken(i1 - lastOffset,token);					token = Token.NULL;					lastOffset = i1;				}				break;			case Token.LITERAL1:				if(backslash)					backslash = false;				else if(c == '"')				{					addToken(i1 - lastOffset,token);					token = Token.NULL;					lastOffset = i1;				}				else					backslash = false;				break;			case Token.LITERAL2:				if(backslash)					backslash = false;				else if(c == '\'')				{					addToken(i1 - lastOffset,Token.LITERAL1);					token = Token.NULL;					lastOffset = i1;				}				else					backslash = false;				break;			}		}		switch(token)		{		case Token.KEYWORD2:			addToken(length - lastOffset,Token.INVALID);			token = Token.NULL;			break;		case Token.LITERAL2:			addToken(length - lastOffset,Token.LITERAL1);			break;		default:			addToken(length - lastOffset,token);			break;		}		return token;	}}