svn-gvsig-desktop / tags / v1_0_2_Build_902 / libraries / libIverUtiles / src / com / iver / utiles / console / jedit / ShellScriptTokenMarker.java @ 10681
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package com.iver.utiles.console.jedit; |
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/*
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* ShellScriptTokenMarker.java - Shell script 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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* Shell script 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 ShellScriptTokenMarker extends TokenMarker |
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{
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// public members
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public static final byte LVARIABLE = Token.INTERNAL_FIRST; |
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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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byte cmdState = 0; // 0 = space before command, 1 = inside |
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// command, 2 = after command
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int offset = line.offset;
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int lastOffset = offset;
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int length = line.count + offset;
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if(token == Token.LITERAL1 && lineIndex != 0 |
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&& lineInfo[lineIndex - 1].obj != null) |
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{
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String str = (String)lineInfo[lineIndex - 1].obj; |
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if(str != null && str.length() == line.count |
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&& SyntaxUtilities.regionMatches(false,line,
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offset,str)) |
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{
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addToken(line.count,Token.LITERAL1); |
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return Token.NULL;
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} |
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else
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{
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addToken(line.count,Token.LITERAL1); |
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lineInfo[lineIndex].obj = str; |
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return Token.LITERAL1;
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} |
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} |
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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 ' ': case '\t': case '(': case ')': |
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backslash = false;
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if(cmdState == 1/*insideCmd*/) |
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{
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addToken(i - lastOffset,Token.KEYWORD1); |
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lastOffset = i; |
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cmdState = 2; /*afterCmd*/ |
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} |
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break;
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case '=': |
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backslash = false;
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if(cmdState == 1/*insideCmd*/) |
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{
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addToken(i - lastOffset,token); |
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lastOffset = i; |
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cmdState = 2; /*afterCmd*/ |
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} |
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break;
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case '&': case '|': case ';': |
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if(backslash)
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backslash = false;
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else
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cmdState = 0; /*beforeCmd*/ |
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break;
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case '#': |
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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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addToken(length - i,Token.COMMENT1); |
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lastOffset = 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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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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cmdState = 2; /*afterCmd*/ |
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lastOffset = i; |
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if(length - i >= 2) |
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{
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switch(array[i1])
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{
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case '(': |
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continue;
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case '{': |
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token = LVARIABLE; |
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break;
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default:
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token = Token.KEYWORD2; |
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break;
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} |
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} |
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else
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token = Token.KEYWORD2; |
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} |
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break;
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case '"': |
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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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lineInfo[lineIndex].obj = null;
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cmdState = 2; /*afterCmd*/ |
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lastOffset = i; |
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} |
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break;
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case '\'': |
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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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cmdState = 2; /*afterCmd*/ |
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lastOffset = i; |
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} |
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break;
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case '<': |
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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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if(length - i > 1 && array[i1] == '<') |
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{
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addToken(i - lastOffset, |
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token); |
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token = Token.LITERAL1; |
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lastOffset = i; |
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lineInfo[lineIndex].obj = |
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new String(array,i + 2, |
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length - (i+2));
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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.isLetter(c)) |
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{
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if(cmdState == 0 /*beforeCmd*/) |
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{
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addToken(i - lastOffset,token); |
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lastOffset = i; |
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cmdState++; /*insideCmd*/
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} |
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} |
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break;
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} |
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break;
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case Token.KEYWORD2:
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backslash = false;
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if(!Character.isLetterOrDigit(c) && c != '_') |
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{
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if(i != offset && array[i-1] == '$') |
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{
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addToken(i1 - lastOffset,token); |
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lastOffset = i1; |
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token = Token.NULL; |
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continue;
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} |
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else
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{
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addToken(i - lastOffset,token); |
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lastOffset = i; |
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token = Token.NULL; |
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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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cmdState = 2; /*afterCmd*/ |
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lastOffset = i1; |
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token = Token.NULL; |
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} |
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else
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backslash = false;
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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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cmdState = 2; /*afterCmd*/ |
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lastOffset = i1; |
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token = Token.NULL; |
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} |
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else
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backslash = false;
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break;
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case LVARIABLE:
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backslash = false;
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if(c == '}') |
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{
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addToken(i1 - lastOffset,Token.KEYWORD2); |
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lastOffset = i1; |
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token = Token.NULL; |
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} |
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break;
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default:
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throw new InternalError("Invalid state: " + token); |
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} |
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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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if(cmdState == 1) |
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addToken(length - lastOffset,Token.KEYWORD1); |
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else
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addToken(length - lastOffset,token); |
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break;
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case Token.LITERAL2:
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addToken(length - lastOffset,Token.LITERAL1); |
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break;
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case Token.KEYWORD2:
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addToken(length - lastOffset,token); |
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token = Token.NULL; |
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break;
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case LVARIABLE:
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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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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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} |