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1
30
31 package org.syntax.jedit.tokenmarker;
32
33 import org.syntax.jedit.*;
34 import javax.swing.text.Segment  ;
35
36
42 public class SQLTokenMarker extends TokenMarker
43 {
44 private int offset, lastOffset, lastKeyword, length;
45
46 public SQLTokenMarker(KeywordMap k)
48 {
49 this(k, false);
50 }
51
52 public SQLTokenMarker(KeywordMap k, boolean tsql)
53 {
54 keywords = k;
55 isTSQL = tsql;
56 }
57
58 public byte markTokensImpl(byte token, Segment line, int lineIndex)
59 {
60 offset = lastOffset = lastKeyword = line.offset;
61 length = line.count + offset;
62
63 loop:
64 for(int i = offset; i < length; i++)
65 {
66 switch(line.array[i])
67 {
68 case '*':
69 if(token == Token.COMMENT1 && length - i >= 1 && line.array[i+1] == '/')
70 {
71 token = Token.NULL;
72 i++;
73 addToken((i + 1) - lastOffset,Token.COMMENT1);
74 lastOffset = i + 1;
75 }
76 else if (token == Token.NULL)
77 {
78 searchBack(line, i);
79 addToken(1,Token.OPERATOR);
80 lastOffset = i + 1;
81 }
82 break;
83 case '[':
84 if(token == Token.NULL)
85 {
86 searchBack(line, i);
87 token = Token.LITERAL1;
88 literalChar = '[';
89 lastOffset = i;
90 }
91 break;
92 case ']':
93 if(token == Token.LITERAL1 && literalChar == '[')
94 {
95 token = Token.NULL;
96 literalChar = 0;
97 addToken((i + 1) - lastOffset,Token.LITERAL1);
98 lastOffset = i + 1;
99 }
100 break;
101 case '.': case ',': case '(': case ')':
102 if (token == Token.NULL) {
103 searchBack(line, i);
104 addToken(1, Token.NULL);
105 lastOffset = i + 1;
106 }
107 break;
108 case '+': case '%': case '&': case '|': case '^':
109 case '~': case '<': case '>': case '=':
110 if (token == Token.NULL) {
111 searchBack(line, i);
112 addToken(1,Token.OPERATOR);
113 lastOffset = i + 1;
114 }
115 break;
116 case ' ': case '\t':
117 if (token == Token.NULL) {
118 searchBack(line, i, false);
119 }
120 break;
121 case ':':
122 if(token == Token.NULL)
123 {
124 addToken((i+1) - lastOffset,Token.LABEL);
125 lastOffset = i + 1;
126 }
127 break;
128 case '/':
129 if(token == Token.NULL)
130 {
131 if (length - i >= 2 && line.array[i + 1] == '*')
132 {
133 searchBack(line, i);
134 token = Token.COMMENT1;
135 lastOffset = i;
136 i++;
137 }
138 else
139 {
140 searchBack(line, i);
141 addToken(1,Token.OPERATOR);
142 lastOffset = i + 1;
143 }
144 }
145 break;
146 case '-':
147 if(token == Token.NULL)
148 {
149 if (length - i >= 2 && line.array[i+1] == '-')
150 {
151 searchBack(line, i);
152 addToken(length - i,Token.COMMENT1);
153 lastOffset = length;
154 break loop;
155 }
156 else
157 {
158 searchBack(line, i);
159 addToken(1,Token.OPERATOR);
160 lastOffset = i + 1;
161 }
162 }
163 break;
164 case '!':
165 if(isTSQL && token == Token.NULL && length - i >= 2 &&
166 (line.array[i+1] == '=' || line.array[i+1] == '<' || line.array[i+1] == '>'))
167 {
168 searchBack(line, i);
169 addToken(1,Token.OPERATOR);
170 lastOffset = i + 1;
171 }
172 break;
173 case '"': case '\'':
174 if(token == Token.NULL)
175 {
176 token = Token.LITERAL1;
177 literalChar = line.array[i];
178 addToken(i - lastOffset,Token.NULL);
179 lastOffset = i;
180 }
181 else if(token == Token.LITERAL1 && literalChar == line.array[i])
182 {
183 token = Token.NULL;
184 literalChar = 0;
185 addToken((i + 1) - lastOffset,Token.LITERAL1);
186 lastOffset = i + 1;
187 }
188 break;
189 default:
190 break;
191 }
192 }
193 if(token == Token.NULL)
194 searchBack(line, length, false);
195 if(lastOffset != length)
196 addToken(length - lastOffset,token);
197 return token;
198 }
199
200 protected boolean isTSQL = false;
202
203 private KeywordMap keywords;
205 private char literalChar = 0;
206
207 private void searchBack(Segment line, int pos)
208 {
209 searchBack(line, pos, true);
210 }
211
212 private void searchBack(Segment line, int pos, boolean padNull)
213 {
214 int len = pos - lastKeyword;
215 byte id = keywords.lookup(line,lastKeyword,len);
216 if(id != Token.NULL)
217 {
218 if(lastKeyword != lastOffset)
219 addToken(lastKeyword - lastOffset,Token.NULL);
220 addToken(len,id);
221 lastOffset = pos;
222 }
223 lastKeyword = pos + 1;
224 if (padNull && lastOffset < pos)
225 addToken(pos - lastOffset, Token.NULL);
226 }
227 }
228 |
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