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1
9 package com.roblisa.classfinder;
10
11 import java.io.*;
12 import java.util.*;
13
16 public class JavaToHTMLFilterStream extends FilteredInputStream
17 {
18 boolean singleComment=false;
19 boolean multiComment=false;
20 boolean openSlash=false;
21 boolean singleQuote=false;
22 boolean doubleQuote=false;
23 boolean backSlash=false;
24
25 private static final Set keys=new HashSet();
26
27 static
28 {
29 String[] keywords=new String[]{"abstract","boolean","break","byte","case","catch","char","class","continue","default","delegate","do","double","else","extends","false","final","finally","float","for","if","implements","import","instanceof","int","interface","long","native","new","null","package","private","protected","public","return","short","static","super","switch","synchronized","this","throw","throws","transient","true","try","void","volatile","while"};
30 for(int i=0;i<keywords.length;i++)
31 keys.add(keywords[i]);
32 }
33
34 private static final String brackets="(){}[]";
35
36 StringBuffer sb=new StringBuffer();
37 int lb=-1;
38 int llb=-1;
39 String baseurl;
40 Library lib;
41 Set imports;
42 String font=null;
43 boolean linkToDoc;
44
45 public JavaToHTMLFilterStream(InputStream is,LibClass self,Library lib,boolean linkToDoc)
46 {
47 super(is);
48 StringBuffer bu=new StringBuffer();
49 String path=self.getClassPath();
50 int ind=path.indexOf('/');
51 while(ind!=-1)
52 {
53 bu.append("../");
54 ind=path.indexOf('/',ind+1);
55 }
56
57 baseurl=bu.toString();
58 this.lib=lib;
59 write("<html><head><title>Viewing Source of ");
60 write(self.getClassName());
61 write("</title>");
62 write("<LINK REL =\"stylesheet\" TYPE=\"text/css\" HREF=\"");
63 write(baseurl);
64 write("stylesheet.css\" TITLE=\"Style\">");
65 write("</head><body><h2>Viewing Source of <a HREF=\"");
66 write(ClassFinder.DOC_ROOT);
67 String pck=self.getPackage();
68 write(self.getClassPath());
69 write(".html\">");
70 write(self.getClassName());
71 write("</a></h2>");
72 write("<a HREF=\"");
73 write(baseurl);
74 write(self.getSourcePath());
75 write(".java\">");
76 write(self.getSourceName());
77 write(".java</a>");
78 write("<pre>\n");
79 this.linkToDoc=linkToDoc;
80 imports=new HashSet();
81 imports.add("java.lang");
82 imports.add(pck);
83 }
84
85 public static void main(String[] args) throws Exception
86 {
87 InputStream is=new JavaToHTMLFilterStream(new BufferedInputStream(new FileInputStream("JavaToHTMLFilterStream.java")),null,null,true);
89 FileOutputStream fos=new FileOutputStream("rob.html");
90 byte[] buf=new byte[1024];
91 try {
92 int n;
93 while ((n = is.read(buf)) > 0) {
94 fos.write(buf, 0, n);
95 }
96 } finally {
97 is.close();
98 fos.close();
99 }
100 }
101
102 public void filter(int b)
103 {
104 boolean skip=false;
105
106 if (!singleQuote&&!doubleQuote&&!singleComment&&!multiComment)
107 {
108 if (lb=='/'&&b=='*')
109 {
110 setFont("MultiComment");
111 multiComment=true;
112 }
113
114 if (b=='/'&&lb=='/')
115 {
116 setFont("SingleComment");
117 singleComment=true;
118 }
119 }
120
121 if (b=='/')
123 skip=true;
124
125 if (lb=='/')
127 write('/');
128
129 if ((singleComment&&b=='\n')||(multiComment&&llb=='*'&&lb=='/'))
130 {
131 singleComment=multiComment=false;
132 }
133
134
135
136 if (!singleComment&&!multiComment)
137 {
138 if (lb!='\\'||(lb=='\\'&&llb=='\\'))
139 {
140 if (!singleQuote&&!doubleQuote&&b=='"')
141 {
142 setFont("DoubleQuote");
143 doubleQuote=true;
144 }
145 else
146 if (!singleQuote&&!doubleQuote&&b=='\'')
147 {
148 setFont("SingleQuote");
149 singleQuote=true;
150 }
151 else
152 if ((singleQuote&&b=='\'')||(doubleQuote&&b=='"'))
153 {
154 write(b);
155 skip=true;
156 singleQuote=doubleQuote=false;
157 }
158 }
159 if (!singleQuote&&!doubleQuote)
160 {
161 if ((b>='A'&&b<='Z')||(b>='a'&&b<='z')||(b>='0'&&b<='9')||b=='.'||b=='_')
162 {
163 sb.append((char)b);
164 skip=true;
165 }
166 }
167 }
168 if (!skip)
169 {
170 if (sb.length()>0)
171 {
172 boolean match=false;
173 String s=sb.toString();
174 String cla=null;
175 int cut=-1;
176
177 if (lib!=null)
178 {
179 boolean docLink=linkToDoc;
180 if (s.charAt(s.length()-1)=='.')
181 {
182 String sub=s.substring(0,s.length()-1);
183 if (lib.containsPackage(sub))
184 {
185 imports.add(sub);
186 cla=sub.replace('.','/')+"/package-summary";
187 cut=s.length()-1;
188 match=true;
189 docLink=true;
190 }
191 }
192 else
193 if (lib.containsPackage(s))
194 {
195 cla=s.replace('.','/')+"/package-summary";
196 cut=s.length();
197 match=true;
198 }
199 else
200 {
201 int dot=s.length();
202 for(int i=0;i<3;i++)
203 {
204 String s2=s.substring(0,dot);
205 Object o=lib.lookupClass(s2);
206 if (o instanceof LibClass)
207 {
208 LibClass c=(LibClass)o;
209 cla=c.getClassPath();
210 if (dot!=-1)
211 imports.add(cla);
212 cut=(i==0)?s.length():dot;
213 match=true;
214 docLink=linkToDoc&&c.hasResource(LibClass.DOC);
215 }
216 else
217 if (o instanceof List)
218 {
219 for(Iterator it=((List)o).iterator();it.hasNext();)
220 {
221 LibClass c=(LibClass)it.next();
222 if (imports.contains(c.getClassName())||imports.contains(c.getPackage()))
223 {
224 cla=c.getClassPath();
225 cut=(i==0)?s.length():dot;
226 match=true;
227 docLink=linkToDoc&&c.hasResource(LibClass.DOC);
228 break;
229 }
230 }
231 }
232 if (i==0)
233 dot=s.indexOf('.');
234 else
235 if (i==2)
236 dot=s.indexOf('.',dot+1);
237
238 if (dot==-1||match)
239 break;
240
241 }
242 }
243 if (match)
244 {
245 setFont(null);
246 write("<a HREF=\"");
247 write(docLink?ClassFinder.DOC_ROOT:ClassFinder.SRC_ROOT);
248 write(cla);
249 write(".html\">");
250 write(s.substring(0,cut));
251 write("</a>");
252 if (cut<s.length())
253 write(s.substring(cut));
254 }
255 }
256 if (!match)
257 {
258 if (keys.contains(s))
259 {
260 setFont("Keywords");
261 write(s);
262 match=true;
263 }
264 }
265 if (!match)
266 {
267 setFont(null);
268 write(s);
269 }
270 sb.setLength(0);
271 }
272 if (!singleQuote&&!doubleQuote&&!singleComment&&!multiComment)
273 {
274 if (brackets.indexOf(b)!=-1)
275 {
276 setFont("Brackets");
277 write(b);
278 skip=true;
279 }
280 }
281
282 if (!skip)
283 {
284 if (!singleQuote&&!doubleQuote&&!singleComment&&!multiComment&&b!=' '&&b!='\n'&&b!='\r'&&b!='\t')
285 setFont(null);
286
287 if (b==-1)
288 {
289 write("</pre></body></html>");
290 setFont(null);
291 }
292 else
293 if (b=='<')
294 write("<");
295 else
296 if (b=='>')
297 write(">");
298 else
299 write(b);
300 }
301 }
302 llb=lb;
303 lb=b;
304 }
305
306 private void setFont(String col)
307 {
308 if (col==font) return;
309 if (font!=null)
310 {
311 write("</font>");
312 }
313 if (col!=null)
314 {
315 write("<font CLASS=\"");
316 write(col);
317 write("\">");
318 }
319 font=col;
320 }
321 }
322 |
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