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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
41 public class EiffelTokenMarker extends TokenMarker
42 {
43
44 public EiffelTokenMarker()
45 {
46 this.keywords = getKeywords();
47 }
48
49 public byte markTokensImpl(byte token, Segment line, int lineIndex)
50 {
51 char[] array = line.array;
52 int offset = line.offset;
53 lastOffset = offset;
54 lastKeyword = offset;
55 int length = line.count + offset;
56 boolean backslash = false;
57
58 loop: for(int i = offset; i < length; i++)
59 {
60 int i1 = (i+1);
61
62 char c = array[i];
63 if(c == '%')
64 {
65 backslash = !backslash;
66 continue;
67 }
68
69 switch(token)
70 {
71 case Token.NULL:
72 switch(c)
73 {
74 case '"':
75 doKeyword(line,i,c);
76 if(backslash)
77 backslash = false;
78 else
79 {
80 addToken(i - lastOffset,token);
81 token = Token.LITERAL1;
82 lastOffset = lastKeyword = i;
83 }
84 break;
85 case '\'':
86 doKeyword(line,i,c);
87 if(backslash)
88 backslash = false;
89 else
90 {
91 addToken(i - lastOffset,token);
92 token = Token.LITERAL2;
93 lastOffset = lastKeyword = i;
94 }
95 break;
96 case ':':
97 if(lastKeyword == offset)
98 {
99 if(doKeyword(line,i,c))
100 break;
101 backslash = false;
102 addToken(i1 - lastOffset,Token.LABEL);
103 lastOffset = lastKeyword = i1;
104 }
105 else if(doKeyword(line,i,c))
106 break;
107 break;
108 case '-':
109 backslash = false;
110 doKeyword(line,i,c);
111 if(length - i > 1)
112 {
113 switch(array[i1])
114 {
115 case '-':
116 addToken(i - lastOffset,token);
117 addToken(length - i,Token.COMMENT1);
118 lastOffset = lastKeyword = length;
119 break loop;
120 }
121 }
122 break;
123 default:
124 backslash = false;
125 if(!Character.isLetterOrDigit(c)
126 && c != '_')
127 doKeyword(line,i,c);
128 break;
129 }
130 break;
131 case Token.COMMENT1:
132 case Token.COMMENT2:
133 throw new RuntimeException ("Wrong eiffel parser state");
134 case Token.LITERAL1:
135 if(backslash)
136 backslash = false;
137 else if(c == '"')
138 {
139 addToken(i1 - lastOffset,token);
140 token = Token.NULL;
141 lastOffset = lastKeyword = i1;
142 }
143 break;
144 case Token.LITERAL2:
145 if(backslash)
146 backslash = false;
147 else if(c == '\'')
148 {
149 addToken(i1 - lastOffset,Token.LITERAL1);
150 token = Token.NULL;
151 lastOffset = lastKeyword = i1;
152 }
153 break;
154 default:
155 throw new InternalError ("Invalid state: "
156 + token);
157 }
158 }
159
160 if(token == Token.NULL)
161 doKeyword(line,length,'\0');
162
163 switch(token)
164 {
165 case Token.LITERAL1:
166 case Token.LITERAL2:
167 addToken(length - lastOffset,Token.INVALID);
168 token = Token.NULL;
169 break;
170 case Token.KEYWORD2:
171 addToken(length - lastOffset,token);
172 if(!backslash)
173 token = Token.NULL;
174 default:
175 addToken(length - lastOffset,token);
176 break;
177 }
178
179 return token;
180 }
181
182 public static KeywordMap getKeywords()
183 {
184 if(eiffelKeywords == null)
185 {
186 eiffelKeywords = new KeywordMap(true);
187 eiffelKeywords.add("alias", Token.KEYWORD1);
188 eiffelKeywords.add("all", Token.KEYWORD1);
189 eiffelKeywords.add("and", Token.KEYWORD1);
190 eiffelKeywords.add("as", Token.KEYWORD1);
191 eiffelKeywords.add("check", Token.KEYWORD1);
192 eiffelKeywords.add("class", Token.KEYWORD1);
193 eiffelKeywords.add("creation", Token.KEYWORD1);
194 eiffelKeywords.add("debug", Token.KEYWORD1);
195 eiffelKeywords.add("deferred", Token.KEYWORD1);
196 eiffelKeywords.add("do", Token.KEYWORD1);
197 eiffelKeywords.add("else",Token.KEYWORD1);
198 eiffelKeywords.add("elseif", Token.KEYWORD1);
199 eiffelKeywords.add("end", Token.KEYWORD1);
200 eiffelKeywords.add("ensure", Token.KEYWORD1);
201 eiffelKeywords.add("expanded", Token.KEYWORD1);
202 eiffelKeywords.add("export", Token.KEYWORD1);
203 eiffelKeywords.add("external", Token.KEYWORD1);
204 eiffelKeywords.add("feature", Token.KEYWORD1);
205 eiffelKeywords.add("from", Token.KEYWORD1);
206 eiffelKeywords.add("frozen", Token.KEYWORD1);
207 eiffelKeywords.add("if", Token.KEYWORD1);
208 eiffelKeywords.add("implies",Token.KEYWORD1);
209 eiffelKeywords.add("indexing", Token.KEYWORD1);
210 eiffelKeywords.add("infix", Token.KEYWORD1);
211 eiffelKeywords.add("inherit", Token.KEYWORD1);
212 eiffelKeywords.add("inspect", Token.KEYWORD1);
213 eiffelKeywords.add("invariant", Token.KEYWORD1);
214 eiffelKeywords.add("is", Token.KEYWORD1);
215 eiffelKeywords.add("like", Token.KEYWORD1);
216 eiffelKeywords.add("local", Token.KEYWORD1);
217 eiffelKeywords.add("loop", Token.KEYWORD1);
218 eiffelKeywords.add("not", Token.KEYWORD1);
219 eiffelKeywords.add("obsolete", Token.KEYWORD1);
220 eiffelKeywords.add("old",Token.KEYWORD1);
221 eiffelKeywords.add("once", Token.KEYWORD1);
222 eiffelKeywords.add("or", Token.KEYWORD1);
223 eiffelKeywords.add("prefix", Token.KEYWORD1);
224 eiffelKeywords.add("redefine", Token.KEYWORD1);
225 eiffelKeywords.add("rename", Token.KEYWORD1);
226 eiffelKeywords.add("require", Token.KEYWORD1);
227 eiffelKeywords.add("rescue", Token.KEYWORD1);
228 eiffelKeywords.add("retry", Token.KEYWORD1);
229 eiffelKeywords.add("select", Token.KEYWORD1);
230 eiffelKeywords.add("separate", Token.KEYWORD1);
231 eiffelKeywords.add("then",Token.KEYWORD1);
232 eiffelKeywords.add("undefine", Token.KEYWORD1);
233 eiffelKeywords.add("until", Token.KEYWORD1);
234 eiffelKeywords.add("variant", Token.KEYWORD1);
235 eiffelKeywords.add("when", Token.KEYWORD1);
236 eiffelKeywords.add("xor", Token.KEYWORD1);
237
238 eiffelKeywords.add("current",Token.LITERAL2);
239 eiffelKeywords.add("false",Token.LITERAL2);
240 eiffelKeywords.add("precursor",Token.LITERAL2);
241 eiffelKeywords.add("result",Token.LITERAL2);
242 eiffelKeywords.add("strip",Token.LITERAL2);
243 eiffelKeywords.add("true",Token.LITERAL2);
244 eiffelKeywords.add("unique",Token.LITERAL2);
245 eiffelKeywords.add("void",Token.LITERAL2);
246
247 }
248 return eiffelKeywords;
249 }
250
251 private static KeywordMap eiffelKeywords;
253
254 private boolean cpp;
255 private KeywordMap keywords;
256 private int lastOffset;
257 private int lastKeyword;
258
259 private boolean doKeyword(Segment line, int i, char c)
260 {
261 int i1 = i+1;
262 boolean klassname = false;
263
264 int len = i - lastKeyword;
265 byte id = keywords.lookup(line,lastKeyword,len);
266 if ( id == Token.NULL )
267 {
268 klassname = true;
269 for ( int at = lastKeyword; at < lastKeyword + len; at++ )
270 {
271 char ch = line.array[at];
272 if ( ch != '_' && !Character.isUpperCase(ch) )
273 {
274 klassname = false;
275 break;
276 }
277 }
278 if ( klassname )
279 id = Token.KEYWORD3;
280 }
281
282 if(id != Token.NULL)
283 {
284 if(lastKeyword != lastOffset)
285 addToken(lastKeyword - lastOffset,Token.NULL);
286 addToken(len,id);
287 lastOffset = i;
288 }
289 lastKeyword = i1;
290 return false;
291 }
292 }
293 |
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