svn-gvsig-desktop / tags / v1_0_2_Build_905 / libraries / libIverUtiles / src / com / iver / utiles / console / jedit / CTokenMarker.java @ 10767
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package com.iver.utiles.console.jedit; |
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/*
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* CTokenMarker.java - C token marker
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* Copyright (C) 1998, 1999 Slava Pestov
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*
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* You may use and modify this package for any purpose. Redistribution is
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* permitted, in both source and binary form, provided that this notice
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* remains intact in all source distributions of this package.
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*/
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import javax.swing.text.Segment; |
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/**
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* C token marker.
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*
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* @author Slava Pestov
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* @version $Id$
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*/
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public class CTokenMarker extends TokenMarker |
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{
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public CTokenMarker()
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{
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this(true,getKeywords()); |
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} |
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public CTokenMarker(boolean cpp, KeywordMap keywords) |
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{
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this.cpp = cpp;
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this.keywords = keywords;
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} |
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public byte markTokensImpl(byte token, Segment line, int lineIndex) |
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{
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char[] array = line.array; |
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int offset = line.offset;
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lastOffset = offset; |
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lastKeyword = offset; |
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int length = line.count + offset;
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boolean backslash = false; |
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loop: for(int i = offset; i < length; i++) |
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{
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int i1 = (i+1); |
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char c = array[i];
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if(c == '\\') |
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{
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backslash = !backslash; |
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continue;
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} |
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switch(token)
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{
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case Token.NULL:
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switch(c)
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{
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case '#': |
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if(backslash)
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backslash = false;
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else if(cpp) |
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{
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if(doKeyword(line,i,c))
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break;
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addToken(i - lastOffset,token); |
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addToken(length - i,Token.KEYWORD2); |
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lastOffset = lastKeyword = length; |
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break loop;
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} |
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break;
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case '"': |
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doKeyword(line,i,c); |
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if(backslash)
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backslash = false;
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else
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{
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addToken(i - lastOffset,token); |
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token = Token.LITERAL1; |
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lastOffset = lastKeyword = i; |
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} |
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break;
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case '\'': |
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doKeyword(line,i,c); |
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if(backslash)
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backslash = false;
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else
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{
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addToken(i - lastOffset,token); |
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token = Token.LITERAL2; |
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lastOffset = lastKeyword = i; |
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} |
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break;
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case ':': |
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if(lastKeyword == offset)
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{
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if(doKeyword(line,i,c))
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break;
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backslash = false;
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addToken(i1 - lastOffset,Token.LABEL); |
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lastOffset = lastKeyword = i1; |
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} |
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else if(doKeyword(line,i,c)) |
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break;
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break;
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case '/': |
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backslash = false;
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doKeyword(line,i,c); |
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if(length - i > 1) |
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{
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switch(array[i1])
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{
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case '*': |
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addToken(i - lastOffset,token); |
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lastOffset = lastKeyword = i; |
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if(length - i > 2 && array[i+2] == '*') |
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token = Token.COMMENT2; |
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else
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token = Token.COMMENT1; |
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break;
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case '/': |
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addToken(i - lastOffset,token); |
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addToken(length - i,Token.COMMENT1); |
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lastOffset = lastKeyword = length; |
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break loop;
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} |
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} |
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break;
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default:
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backslash = false;
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if(!Character.isLetterOrDigit(c) |
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&& c != '_')
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doKeyword(line,i,c); |
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break;
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} |
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break;
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case Token.COMMENT1:
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case Token.COMMENT2:
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backslash = false;
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if(c == '*' && length - i > 1) |
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{
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if(array[i1] == '/') |
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{
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i++; |
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addToken((i+1) - lastOffset,token);
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token = Token.NULL; |
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lastOffset = lastKeyword = i+1;
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} |
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} |
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break;
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case Token.LITERAL1:
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if(backslash)
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backslash = false;
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else if(c == '"') |
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{
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addToken(i1 - lastOffset,token); |
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token = Token.NULL; |
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lastOffset = lastKeyword = i1; |
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} |
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break;
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case Token.LITERAL2:
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if(backslash)
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backslash = false;
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else if(c == '\'') |
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{
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addToken(i1 - lastOffset,Token.LITERAL1); |
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token = Token.NULL; |
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lastOffset = lastKeyword = i1; |
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} |
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break;
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default:
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throw new InternalError("Invalid state: " |
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+ token); |
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} |
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} |
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if(token == Token.NULL)
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doKeyword(line,length,'\0');
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switch(token)
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{
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case Token.LITERAL1:
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case Token.LITERAL2:
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addToken(length - lastOffset,Token.INVALID); |
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token = Token.NULL; |
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break;
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case Token.KEYWORD2:
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addToken(length - lastOffset,token); |
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if(!backslash)
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token = Token.NULL; |
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default:
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addToken(length - lastOffset,token); |
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break;
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} |
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return token;
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} |
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public static KeywordMap getKeywords() |
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{
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if(cKeywords == null) |
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{
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cKeywords = new KeywordMap(false); |
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cKeywords.add("char",Token.KEYWORD3);
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cKeywords.add("double",Token.KEYWORD3);
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cKeywords.add("enum",Token.KEYWORD3);
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cKeywords.add("float",Token.KEYWORD3);
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cKeywords.add("int",Token.KEYWORD3);
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cKeywords.add("long",Token.KEYWORD3);
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cKeywords.add("short",Token.KEYWORD3);
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cKeywords.add("signed",Token.KEYWORD3);
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cKeywords.add("struct",Token.KEYWORD3);
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cKeywords.add("typedef",Token.KEYWORD3);
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cKeywords.add("union",Token.KEYWORD3);
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cKeywords.add("unsigned",Token.KEYWORD3);
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cKeywords.add("void",Token.KEYWORD3);
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cKeywords.add("auto",Token.KEYWORD1);
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cKeywords.add("const",Token.KEYWORD1);
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cKeywords.add("extern",Token.KEYWORD1);
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cKeywords.add("register",Token.KEYWORD1);
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cKeywords.add("static",Token.KEYWORD1);
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cKeywords.add("volatile",Token.KEYWORD1);
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cKeywords.add("break",Token.KEYWORD1);
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cKeywords.add("case",Token.KEYWORD1);
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cKeywords.add("continue",Token.KEYWORD1);
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cKeywords.add("default",Token.KEYWORD1);
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cKeywords.add("do",Token.KEYWORD1);
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cKeywords.add("else",Token.KEYWORD1);
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cKeywords.add("for",Token.KEYWORD1);
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cKeywords.add("goto",Token.KEYWORD1);
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cKeywords.add("if",Token.KEYWORD1);
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cKeywords.add("return",Token.KEYWORD1);
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cKeywords.add("sizeof",Token.KEYWORD1);
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cKeywords.add("switch",Token.KEYWORD1);
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cKeywords.add("while",Token.KEYWORD1);
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cKeywords.add("asm",Token.KEYWORD2);
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cKeywords.add("asmlinkage",Token.KEYWORD2);
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cKeywords.add("far",Token.KEYWORD2);
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cKeywords.add("huge",Token.KEYWORD2);
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cKeywords.add("inline",Token.KEYWORD2);
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cKeywords.add("near",Token.KEYWORD2);
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cKeywords.add("pascal",Token.KEYWORD2);
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cKeywords.add("true",Token.LITERAL2);
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cKeywords.add("false",Token.LITERAL2);
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cKeywords.add("NULL",Token.LITERAL2);
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} |
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return cKeywords;
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} |
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// private members
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private static KeywordMap cKeywords; |
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private boolean cpp; |
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private KeywordMap keywords;
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private int lastOffset; |
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private int lastKeyword; |
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private boolean doKeyword(Segment line, int i, char c) |
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{
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int i1 = i+1; |
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int len = i - lastKeyword;
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byte id = keywords.lookup(line,lastKeyword,len);
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if(id != Token.NULL)
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{
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if(lastKeyword != lastOffset)
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addToken(lastKeyword - lastOffset,Token.NULL); |
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addToken(len,id); |
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lastOffset = i; |
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} |
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lastKeyword = i1; |
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return false; |
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} |
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} |