package org.jedit.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
* @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;
}
}