|
1
21
22 package org.armedbear.j;
23
24 import gnu.regexp.RE;
25 import gnu.regexp.UncheckedRE;
26 import java.util.ArrayList  ;
27
28 public final class ObjCTagger extends JavaTagger
29 {
30 private static final int NEUTRAL = 0;
32 private static final int METHOD_PROLOG = 1;
33 private static final int METHOD_NAME = 2;
34 private static final int PARAMETER_LIST = 3;
35
36 private Mode mode = ObjCMode.getMode();
37
38 public ObjCTagger(SystemBuffer buffer)
39 {
40 super(buffer);
41 }
42
43 public void run()
44 {
45 ArrayList tags = new ArrayList ();
46 pos = new Position(buffer.getFirstLine(), 0);
47 token = null;
48 tokenStart = null;
49 int state = NEUTRAL;
50 while (!pos.atEnd()) {
51 char c = pos.getChar();
52 if (Character.isWhitespace(c)) {
53 pos.skipWhitespace();
54 continue;
55 }
56 if (c == '\'' || c == '"') {
57 pos.skipQuote();
58 continue;
59 }
60 if (pos.lookingAt("/*")) {
61 skipComment(pos);
62 continue;
63 }
64 if (pos.lookingAt("//")) {
65 skipSingleLineComment(pos);
66 continue;
67 }
68 if (c == '#' && pos.getOffset() == 0) {
69 skipPreprocessor(pos);
70 continue;
71 }
72 if (state == METHOD_NAME) {
73 if (c == '{') {
74 if (token != null && !mode.isKeyword(token))
75 tags.add(new CTag(token, tokenStart));
76 skipBrace();
77 state = NEUTRAL;
78 } else if (isIdentifierStart(c)) {
79 state = PARAMETER_LIST;
80 pos.next();
81 } else {
82 state = NEUTRAL;
83 pos.next();
84 }
85 continue;
86 }
87 if (state == PARAMETER_LIST) {
88 if (c == '{') {
89 if (token != null && !mode.isKeyword(token))
90 tags.add(new CTag(token, tokenStart));
91 skipBrace();
92 state = NEUTRAL;
93 continue;
94 } else if (c == '(') {
95 state = NEUTRAL;
96 skipParen();
97 continue;
98 } else {
99 pos.next();
100 continue;
101 }
102 }
103 if (state == METHOD_PROLOG) {
104 if (c == '{') {
105 if (token != null && !mode.isKeyword(token))
106 tags.add(new ObjCTag(token, tokenStart));
107 skipBrace();
108 state = NEUTRAL;
109 continue;
110 } else if (c == '(') {
111 skipParen();
112 continue;
113 } else if (isIdentifierStart(c)) {
114 if (token == null) {
115 tokenStart = pos.copy();
116 token = gatherToken(pos);
117 continue;
118 } else {
119 String s = gatherToken(pos);
120 if (s.endsWith(":"))
121 token = token.concat(s);
122 continue;
123 }
124 }
125 pos.next();
126 continue;
127 }
128 if (c == '}') {
129 pos.next();
130 continue;
131 }
132 if (pos.getOffset() == 0 && (c == '+' || c == '-')) {
133 token = null;
134 state = METHOD_PROLOG;
135 continue;
136 }
137 if (isIdentifierStart(c)) {
138 tokenStart = pos.copy();
139 token = gatherToken(pos);
140 continue;
141 }
142 if (c == '(') {
143 skipParen();
144 state = METHOD_NAME;
145 continue;
146 }
147 pos.next();
148 }
149 buffer.setTags(tags);
150 }
151
152 private String gatherToken(Position pos)
153 {
154 FastStringBuffer sb = new FastStringBuffer();
155 char c;
156 while (isIdentifierPart(c = pos.getChar()) || c == ':') {
157 sb.append(c);
158 if (!pos.next())
159 break;
160 }
161 return sb.toString();
162 }
163
164 private static final boolean isIdentifierStart(char c)
165 {
166 return CMode.getMode().isIdentifierStart(c);
167 }
168
169 private static final boolean isIdentifierPart(char c)
170 {
171 return CMode.getMode().isIdentifierPart(c);
172 }
173 }
174 |
Popular Tags |
Java API By Example, From Geeks To Geeks.