svn-gvsig-desktop / tags / v1_0_2_Build_897 / libraries / libIverUtiles / src / com / iver / utiles / console / jedit / SQLTokenMarker.java @ 10444
History | View | Annotate | Download (4.41 KB)
| 1 |
package com.iver.utiles.console.jedit; |
|---|---|
| 2 |
/*
|
| 3 |
* SQLTokenMarker.java - Generic SQL token marker
|
| 4 |
* Copyright (C) 1999 mike dillon
|
| 5 |
*
|
| 6 |
* You may use and modify this package for any purpose. Redistribution is
|
| 7 |
* permitted, in both source and binary form, provided that this notice
|
| 8 |
* remains intact in all source distributions of this package.
|
| 9 |
*/
|
| 10 |
|
| 11 |
import javax.swing.text.Segment; |
| 12 |
|
| 13 |
/**
|
| 14 |
* SQL token marker.
|
| 15 |
*
|
| 16 |
* @author mike dillon
|
| 17 |
* @version $Id$
|
| 18 |
*/
|
| 19 |
public class SQLTokenMarker extends TokenMarker |
| 20 |
{
|
| 21 |
private int offset, lastOffset, lastKeyword, length; |
| 22 |
|
| 23 |
// public members
|
| 24 |
public SQLTokenMarker(KeywordMap k)
|
| 25 |
{
|
| 26 |
this(k, false); |
| 27 |
} |
| 28 |
|
| 29 |
public SQLTokenMarker(KeywordMap k, boolean tsql) |
| 30 |
{
|
| 31 |
keywords = k; |
| 32 |
isTSQL = tsql; |
| 33 |
} |
| 34 |
|
| 35 |
public byte markTokensImpl(byte token, Segment line, int lineIndex) |
| 36 |
{
|
| 37 |
offset = lastOffset = lastKeyword = line.offset; |
| 38 |
length = line.count + offset; |
| 39 |
|
| 40 |
loop: |
| 41 |
for(int i = offset; i < length; i++) |
| 42 |
{
|
| 43 |
switch(line.array[i])
|
| 44 |
{
|
| 45 |
case '*': |
| 46 |
if(token == Token.COMMENT1 && length - i >= 1 && line.array[i+1] == '/') |
| 47 |
{
|
| 48 |
token = Token.NULL; |
| 49 |
i++; |
| 50 |
addToken((i + 1) - lastOffset,Token.COMMENT1);
|
| 51 |
lastOffset = i + 1;
|
| 52 |
} |
| 53 |
else if (token == Token.NULL) |
| 54 |
{
|
| 55 |
searchBack(line, i); |
| 56 |
addToken(1,Token.OPERATOR);
|
| 57 |
lastOffset = i + 1;
|
| 58 |
} |
| 59 |
break;
|
| 60 |
case '[': |
| 61 |
if(token == Token.NULL)
|
| 62 |
{
|
| 63 |
searchBack(line, i); |
| 64 |
token = Token.LITERAL1; |
| 65 |
literalChar = '[';
|
| 66 |
lastOffset = i; |
| 67 |
} |
| 68 |
break;
|
| 69 |
case ']': |
| 70 |
if(token == Token.LITERAL1 && literalChar == '[') |
| 71 |
{
|
| 72 |
token = Token.NULL; |
| 73 |
literalChar = 0;
|
| 74 |
addToken((i + 1) - lastOffset,Token.LITERAL1);
|
| 75 |
lastOffset = i + 1;
|
| 76 |
} |
| 77 |
break;
|
| 78 |
case '.': case ',': case '(': case ')': |
| 79 |
if (token == Token.NULL) {
|
| 80 |
searchBack(line, i); |
| 81 |
addToken(1, Token.NULL);
|
| 82 |
lastOffset = i + 1;
|
| 83 |
} |
| 84 |
break;
|
| 85 |
case '+': case '%': case '&': case '|': case '^': |
| 86 |
case '~': case '<': case '>': case '=': |
| 87 |
if (token == Token.NULL) {
|
| 88 |
searchBack(line, i); |
| 89 |
addToken(1,Token.OPERATOR);
|
| 90 |
lastOffset = i + 1;
|
| 91 |
} |
| 92 |
break;
|
| 93 |
case ' ': case '\t': |
| 94 |
if (token == Token.NULL) {
|
| 95 |
searchBack(line, i, false);
|
| 96 |
} |
| 97 |
break;
|
| 98 |
case ':': |
| 99 |
if(token == Token.NULL)
|
| 100 |
{
|
| 101 |
addToken((i+1) - lastOffset,Token.LABEL);
|
| 102 |
lastOffset = i + 1;
|
| 103 |
} |
| 104 |
break;
|
| 105 |
case '/': |
| 106 |
if(token == Token.NULL)
|
| 107 |
{
|
| 108 |
if (length - i >= 2 && line.array[i + 1] == '*') |
| 109 |
{
|
| 110 |
searchBack(line, i); |
| 111 |
token = Token.COMMENT1; |
| 112 |
lastOffset = i; |
| 113 |
i++; |
| 114 |
} |
| 115 |
else
|
| 116 |
{
|
| 117 |
searchBack(line, i); |
| 118 |
addToken(1,Token.OPERATOR);
|
| 119 |
lastOffset = i + 1;
|
| 120 |
} |
| 121 |
} |
| 122 |
break;
|
| 123 |
case '-': |
| 124 |
if(token == Token.NULL)
|
| 125 |
{
|
| 126 |
if (length - i >= 2 && line.array[i+1] == '-') |
| 127 |
{
|
| 128 |
searchBack(line, i); |
| 129 |
addToken(length - i,Token.COMMENT1); |
| 130 |
lastOffset = length; |
| 131 |
break loop;
|
| 132 |
} |
| 133 |
else
|
| 134 |
{
|
| 135 |
searchBack(line, i); |
| 136 |
addToken(1,Token.OPERATOR);
|
| 137 |
lastOffset = i + 1;
|
| 138 |
} |
| 139 |
} |
| 140 |
break;
|
| 141 |
case '!': |
| 142 |
if(isTSQL && token == Token.NULL && length - i >= 2 && |
| 143 |
(line.array[i+1] == '=' || line.array[i+1] == '<' || line.array[i+1] == '>')) |
| 144 |
{
|
| 145 |
searchBack(line, i); |
| 146 |
addToken(1,Token.OPERATOR);
|
| 147 |
lastOffset = i + 1;
|
| 148 |
} |
| 149 |
break;
|
| 150 |
case '"': case '\'': |
| 151 |
if(token == Token.NULL)
|
| 152 |
{
|
| 153 |
token = Token.LITERAL1; |
| 154 |
literalChar = line.array[i]; |
| 155 |
addToken(i - lastOffset,Token.NULL); |
| 156 |
lastOffset = i; |
| 157 |
} |
| 158 |
else if(token == Token.LITERAL1 && literalChar == line.array[i]) |
| 159 |
{
|
| 160 |
token = Token.NULL; |
| 161 |
literalChar = 0;
|
| 162 |
addToken((i + 1) - lastOffset,Token.LITERAL1);
|
| 163 |
lastOffset = i + 1;
|
| 164 |
} |
| 165 |
break;
|
| 166 |
default:
|
| 167 |
break;
|
| 168 |
} |
| 169 |
} |
| 170 |
if(token == Token.NULL)
|
| 171 |
searchBack(line, length, false);
|
| 172 |
if(lastOffset != length)
|
| 173 |
addToken(length - lastOffset,token); |
| 174 |
return token;
|
| 175 |
} |
| 176 |
|
| 177 |
// protected members
|
| 178 |
protected boolean isTSQL = false; |
| 179 |
|
| 180 |
// private members
|
| 181 |
private KeywordMap keywords;
|
| 182 |
private char literalChar = 0; |
| 183 |
|
| 184 |
private void searchBack(Segment line, int pos) |
| 185 |
{
|
| 186 |
searchBack(line, pos, true);
|
| 187 |
} |
| 188 |
|
| 189 |
private void searchBack(Segment line, int pos, boolean padNull) |
| 190 |
{
|
| 191 |
int len = pos - lastKeyword;
|
| 192 |
byte id = keywords.lookup(line,lastKeyword,len);
|
| 193 |
if(id != Token.NULL)
|
| 194 |
{
|
| 195 |
if(lastKeyword != lastOffset)
|
| 196 |
addToken(lastKeyword - lastOffset,Token.NULL); |
| 197 |
addToken(len,id); |
| 198 |
lastOffset = pos; |
| 199 |
} |
| 200 |
lastKeyword = pos + 1;
|
| 201 |
if (padNull && lastOffset < pos)
|
| 202 |
addToken(pos - lastOffset, Token.NULL); |
| 203 |
} |
| 204 |
} |