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1 package org.jedit.syntax;
2
3
11
12 import javax.swing.text.Segment  ;
13
14
20 public class CTokenMarker extends TokenMarker
21 {
22 public CTokenMarker()
23 {
24 this(true,getKeywords());
25 }
26
27 public CTokenMarker(boolean cpp, KeywordMap keywords)
28 {
29 this.cpp = cpp;
30 this.keywords = keywords;
31 }
32
33 public byte markTokensImpl(byte token, Segment line, int lineIndex)
34 {
35 char[] array = line.array;
36 int offset = line.offset;
37 lastOffset = offset;
38 lastKeyword = offset;
39 int length = line.count + offset;
40 boolean backslash = false;
41
42 loop: for(int i = offset; i < length; i++)
43 {
44 int i1 = (i+1);
45
46 char c = array[i];
47 if(c == '\\')
48 {
49 backslash = !backslash;
50 continue;
51 }
52
53 switch(token)
54 {
55 case Token.NULL:
56 switch(c)
57 {
58 case '#':
59 if(backslash)
60 backslash = false;
61 else if(cpp)
62 {
63 if(doKeyword(line,i,c))
64 break;
65 addToken(i - lastOffset,token);
66 addToken(length - i,Token.KEYWORD2);
67 lastOffset = lastKeyword = length;
68 break loop;
69 }
70 break;
71 case '"':
72 doKeyword(line,i,c);
73 if(backslash)
74 backslash = false;
75 else
76 {
77 addToken(i - lastOffset,token);
78 token = Token.LITERAL1;
79 lastOffset = lastKeyword = i;
80 }
81 break;
82 case '\'':
83 doKeyword(line,i,c);
84 if(backslash)
85 backslash = false;
86 else
87 {
88 addToken(i - lastOffset,token);
89 token = Token.LITERAL2;
90 lastOffset = lastKeyword = i;
91 }
92 break;
93 case ':':
94 if(lastKeyword == offset)
95 {
96 if(doKeyword(line,i,c))
97 break;
98 backslash = false;
99 addToken(i1 - lastOffset,Token.LABEL);
100 lastOffset = lastKeyword = i1;
101 }
102 else if(doKeyword(line,i,c))
103 break;
104 break;
105 case '/':
106 backslash = false;
107 doKeyword(line,i,c);
108 if(length - i > 1)
109 {
110 switch(array[i1])
111 {
112 case '*':
113 addToken(i - lastOffset,token);
114 lastOffset = lastKeyword = i;
115 if(length - i > 2 && array[i+2] == '*')
116 token = Token.COMMENT2;
117 else
118 token = Token.COMMENT1;
119 break;
120 case '/':
121 addToken(i - lastOffset,token);
122 addToken(length - i,Token.COMMENT1);
123 lastOffset = lastKeyword = length;
124 break loop;
125 }
126 }
127 break;
128 default:
129 backslash = false;
130 if(!Character.isLetterOrDigit(c)
131 && c != '_')
132 doKeyword(line,i,c);
133 break;
134 }
135 break;
136 case Token.COMMENT1:
137 case Token.COMMENT2:
138 backslash = false;
139 if(c == '*' && length - i > 1)
140 {
141 if(array[i1] == '/')
142 {
143 i++;
144 addToken((i+1) - lastOffset,token);
145 token = Token.NULL;
146 lastOffset = lastKeyword = i+1;
147 }
148 }
149 break;
150 case Token.LITERAL1:
151 if(backslash)
152 backslash = false;
153 else if(c == '"')
154 {
155 addToken(i1 - lastOffset,token);
156 token = Token.NULL;
157 lastOffset = lastKeyword = i1;
158 }
159 break;
160 case Token.LITERAL2:
161 if(backslash)
162 backslash = false;
163 else if(c == '\'')
164 {
165 addToken(i1 - lastOffset,Token.LITERAL1);
166 token = Token.NULL;
167 lastOffset = lastKeyword = i1;
168 }
169 break;
170 default:
171 throw new InternalError ("Invalid state: "
172 + token);
173 }
174 }
175
176 if(token == Token.NULL)
177 doKeyword(line,length,'\0');
178
179 switch(token)
180 {
181 case Token.LITERAL1:
182 case Token.LITERAL2:
183 addToken(length - lastOffset,Token.INVALID);
184 token = Token.NULL;
185 break;
186 case Token.KEYWORD2:
187 addToken(length - lastOffset,token);
188 if(!backslash)
189 token = Token.NULL;
190 default:
191 addToken(length - lastOffset,token);
192 break;
193 }
194
195 return token;
196 }
197
198 public static KeywordMap getKeywords()
199 {
200 if(cKeywords == null)
201 {
202 cKeywords = new KeywordMap(false);
203 cKeywords.add("char",Token.KEYWORD3);
204 cKeywords.add("double",Token.KEYWORD3);
205 cKeywords.add("enum",Token.KEYWORD3);
206 cKeywords.add("float",Token.KEYWORD3);
207 cKeywords.add("int",Token.KEYWORD3);
208 cKeywords.add("long",Token.KEYWORD3);
209 cKeywords.add("short",Token.KEYWORD3);
210 cKeywords.add("signed",Token.KEYWORD3);
211 cKeywords.add("struct",Token.KEYWORD3);
212 cKeywords.add("typedef",Token.KEYWORD3);
213 cKeywords.add("union",Token.KEYWORD3);
214 cKeywords.add("unsigned",Token.KEYWORD3);
215 cKeywords.add("void",Token.KEYWORD3);
216 cKeywords.add("auto",Token.KEYWORD1);
217 cKeywords.add("const",Token.KEYWORD1);
218 cKeywords.add("extern",Token.KEYWORD1);
219 cKeywords.add("register",Token.KEYWORD1);
220 cKeywords.add("static",Token.KEYWORD1);
221 cKeywords.add("volatile",Token.KEYWORD1);
222 cKeywords.add("break",Token.KEYWORD1);
223 cKeywords.add("case",Token.KEYWORD1);
224 cKeywords.add("continue",Token.KEYWORD1);
225 cKeywords.add("default",Token.KEYWORD1);
226 cKeywords.add("do",Token.KEYWORD1);
227 cKeywords.add("else",Token.KEYWORD1);
228 cKeywords.add("for",Token.KEYWORD1);
229 cKeywords.add("goto",Token.KEYWORD1);
230 cKeywords.add("if",Token.KEYWORD1);
231 cKeywords.add("return",Token.KEYWORD1);
232 cKeywords.add("sizeof",Token.KEYWORD1);
233 cKeywords.add("switch",Token.KEYWORD1);
234 cKeywords.add("while",Token.KEYWORD1);
235 cKeywords.add("asm",Token.KEYWORD2);
236 cKeywords.add("asmlinkage",Token.KEYWORD2);
237 cKeywords.add("far",Token.KEYWORD2);
238 cKeywords.add("huge",Token.KEYWORD2);
239 cKeywords.add("inline",Token.KEYWORD2);
240 cKeywords.add("near",Token.KEYWORD2);
241 cKeywords.add("pascal",Token.KEYWORD2);
242 cKeywords.add("true",Token.LITERAL2);
243 cKeywords.add("false",Token.LITERAL2);
244 cKeywords.add("NULL",Token.LITERAL2);
245 }
246 return cKeywords;
247 }
248
249 private static KeywordMap cKeywords;
251
252 private boolean cpp;
253 private KeywordMap keywords;
254 private int lastOffset;
255 private int lastKeyword;
256
257 private boolean doKeyword(Segment line, int i, char c)
258 {
259 int i1 = i+1;
260
261 int len = i - lastKeyword;
262 byte id = keywords.lookup(line,lastKeyword,len);
263 if(id != Token.NULL)
264 {
265 if(lastKeyword != lastOffset)
266 addToken(lastKeyword - lastOffset,Token.NULL);
267 addToken(len,id);
268 lastOffset = i;
269 }
270 lastKeyword = i1;
271 return false;
272 }
273 }
274 |
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