/*
* 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;
}
}