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1
21
22 package org.armedbear.j;
23
24 import java.awt.event.KeyEvent  ;
25 import java.util.HashSet ;
26
27 public class CMode extends JavaMode implements Constants, Mode
28 {
29 private static final String [] cConditionals = {
30 "if",
31 "else",
32 "do",
33 "while",
34 "for",
35 "switch"
36 };
37
38 private static CMode mode;
39
40 private CMode()
41 {
42 super(C_MODE, C_MODE_NAME);
43 keywords = new Keywords(this);
44 conditionals = cConditionals;
45 }
46
47 protected CMode(int id, String displayName)
48 {
49 super(id, displayName);
50 }
51
52 public static Mode getMode()
56 {
57 if (mode == null)
58 mode = new CMode();
59 return mode;
60 }
61
62 public String getCommentStart()
63 {
64 return "/*";
65 }
66
67 public String getCommentEnd()
68 {
69 return "*/";
70 }
71
72 public Formatter getFormatter(Buffer buffer)
73 {
74 return new CFormatter(buffer, LANGUAGE_C);
75 }
76
77 protected void setKeyMapDefaults(KeyMap km)
78 {
79 super.setKeyMapDefaults(km);
80 km.mapKey('#', "electricPound");
81 km.mapKey(KeyEvent.VK_M, CTRL_MASK, "cppFindMatch");
82 km.mapKey(KeyEvent.VK_F6, CTRL_MASK, "iList");
83 }
84
85 public void populateModeMenu(Editor editor, Menu menu)
86 {
87 menu.add(editor, "Compile...", 'C', "compile");
88 menu.add(editor, "Recompile", 'R', "recompile");
89 boolean enabled = CompilationCommands.getCompilationBuffer() != null;
90 menu.addSeparator();
91 menu.add(editor, "Next Error", 'N', "nextError", enabled);
92 menu.add(editor, "Previous Error", 'P', "previousError", enabled);
93 menu.add(editor, "Show Error Message", 'M', "showMessage", enabled);
94 }
95
96 public Tagger getTagger(SystemBuffer buffer)
97 {
98 return new CTagger(buffer);
99 }
100
101 public boolean hasQualifiedNames()
102 {
103 return false;
104 }
105
106 public boolean isQualifiedName(String s)
107 {
108 return false;
109 }
110
111 public int getCorrectIndentation(Line line, Buffer buffer)
112 {
113 if (line.trim().startsWith("#"))
114 return 0;
116 return super.getCorrectIndentation(line, buffer);
117 }
118
119 protected static String getPreprocessorToken(Line line)
120 {
121 String s = line.trim();
122 if (s.length() == 0 || s.charAt(0) != '#')
123 return null;
124 final int limit = s.length();
125 int i;
126 for (i = 1; i < limit; i++) {
127 char c = s.charAt(i);
128 if (c != ' ' && c != '\t')
129 break;
130 }
131 FastStringBuffer sb = new FastStringBuffer();
132 for (; i < limit; i++) {
133 char c = s.charAt(i);
134 if (c >= 'a' && c <='z')
135 sb.append(c);
136 else
137 break;
138 }
139 return sb.toString();
140 }
141
142 private static boolean matchBackwards = false;
145
146 public static Line findMatchPreprocessor(Line startLine)
147 {
148 final String patternIf = "if";
149 final String patternElse = "el";
150 final String patternEndif = "endif";
151 String token = null;
152 String match = null;
153 boolean searchBackwards = false;
154 String s = getPreprocessorToken(startLine);
155 if (s == null)
156 return null;
157 if (s.startsWith(patternIf)) {
158 token = patternIf;
159 match = patternEndif;
160 matchBackwards = false;
161 } else if (s.startsWith(patternEndif)) {
162 token = patternEndif;
163 match = patternIf;
164 matchBackwards = true;
165 } else if (s.startsWith(patternElse)) {
166 if (matchBackwards) {
167 token = patternEndif;
168 match = patternIf;
169 } else {
170 token = patternIf;
171 match = patternEndif;
172 }
173 } else
174 return null;
175 int count = 1;
176 Line line = startLine;
177 while (true) {
178 if (matchBackwards)
179 line = line.previous();
180 else
181 line = line.next();
182 if (line == null) break;
183 s = getPreprocessorToken(line);
184 if (s != null) {
185 if (count == 1 && s.startsWith(patternElse))
186 return line;
187 if (s.startsWith(token))
188 ++count;
189 else if (s.startsWith(match))
190 --count;
191 if (count == 0)
192 return line;
193 }
194 }
195 return null;
196 }
197
198 public boolean isIdentifierStart(char c)
199 {
200 if (c >= 'a' && c <= 'z')
201 return true;
202 if (c >='A' && c <= 'Z')
203 return true;
204 if (c == '_')
205 return true;
206 return false;
207 }
208
209 public boolean isIdentifierPart(char c)
210 {
211 if (c >= 'a' && c <= 'z')
212 return true;
213 if (c >='A' && c <= 'Z')
214 return true;
215 if (c >= '0' && c <= '9')
216 return true;
217 if (c == '_')
218 return true;
219 return false;
220 }
221 }
222 |
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