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Java > Open Source Codes > nu > xom > Latin8Writer


1 /* Copyright 2002, 2003 Elliotte Rusty Harold
2    
3    This library is free software; you can redistribute it and/or modify
4    it under the terms of version 2.1 of the GNU Lesser General Public
5    License as published by the Free Software Foundation.
6    
7    This library is distributed in the hope that it will be useful,
8    but WITHOUT ANY WARRANTY; without even the implied warranty of
9    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
10    GNU Lesser General Public License for more details.
11    
12    You should have received a copy of the GNU Lesser General Public
13    License along with this library; if not, write to the
14    Free Software Foundation, Inc., 59 Temple Place, Suite 330,
15    Boston, MA 02111-1307 USA
16    
17    You can contact Elliotte Rusty Harold by sending e-mail to
18    elharo@metalab.unc.edu. Please include the word "XOM" in the
19    subject line. The XOM home page is located at http://www.xom.nu/
20 */
21
22 package nu.xom;
23
24 import java.io.Writer JavaDoc;
25
26 /**
27  * <p>
28  * ISO-8859-14, for Gaelic, Welsh, and other Celtic languages.
29  * Not yet supported by Sun's JDK as of 1.5 alpha. IBM's 1.4.1
30  * JDK does support it.
31  * </p>
32  *
33  * @author Elliotte Rusty Harold
34  * @version 1.0
35  *
36  */
37 class Latin8Writer extends TextWriter {
38
39     Latin8Writer(Writer JavaDoc out, String JavaDoc encoding) {
40         super(out, encoding);
41     }
42
43     /**
44      * @see nu.xom.TextWriter#needsEscaping(char)
45      */
46     boolean needsEscaping(char c) {
47         if (c <= 0xA0) return false;
48         switch (c) { // Latin-1 overlap
49 case 0x00A3: return false; // POUND SIGN
50 case 0x00A4: return true; // place holder to enable table lookup
51 case 0x00A5: return true; // place holder to enable table lookup
52 case 0x00A6: return true; // place holder to enable table lookup
53 case 0x00A7: return false; // SECTION SIGN
54 case 0x00A8: return true; // place holder to enable table lookup
55 case 0x00A9: return false; // COPYRIGHT SIGN
56 case 0x00AA: return true; // place holder to enable table lookup
57 case 0x00AB: return true; // place holder to enable table lookup
58 case 0x00AC: return true; // place holder to enable table lookup
59 case 0x00AD: return false; // SOFT HYPHEN
60 case 0x00AE: return false; // REGISTERED SIGN
61 case 0x00AF: return true; // place holder to enable table lookup
62 case 0x00B0: return true; // place holder to enable table lookup
63 case 0x00B1: return true; // place holder to enable table lookup
64 case 0x00B2: return true; // place holder to enable table lookup
65 case 0x00B3: return true; // place holder to enable table lookup
66 case 0x00B4: return true; // place holder to enable table lookup
67 case 0x00B5: return true; // place holder to enable table lookup
68 case 0x00B6: return false; // PILCROW SIGN
69 case 0x00B7: return true; // place holder to enable table lookup
70 case 0x00B8: return true; // place holder to enable table lookup
71 case 0x00B9: return true; // place holder to enable table lookup
72 case 0x00BA: return true; // place holder to enable table lookup
73 case 0x00BB: return true; // place holder to enable table lookup
74 case 0x00BC: return true; // place holder to enable table lookup
75 case 0x00BD: return true; // place holder to enable table lookup
76 case 0x00BE: return true; // place holder to enable table lookup
77 case 0x00BF: return true; // place holder to enable table lookup
78 case 0x00C0: return false; // LATIN CAPITAL LETTER A WITH GRAVE
79 case 0x00C1: return false; // LATIN CAPITAL LETTER A WITH ACUTE
80 case 0x00C2: return false; // LATIN CAPITAL LETTER A WITH CIRCUMFLEX
81 case 0x00C3: return false; // LATIN CAPITAL LETTER A WITH TILDE
82 case 0x00C4: return false; // LATIN CAPITAL LETTER A WITH DIAERESIS
83 case 0x00C5: return false; // LATIN CAPITAL LETTER A WITH RING ABOVE
84 case 0x00C6: return false; // LATIN CAPITAL LETTER AE
85 case 0x00C7: return false; // LATIN CAPITAL LETTER C WITH CEDILLA
86 case 0x00C8: return false; // LATIN CAPITAL LETTER E WITH GRAVE
87 case 0x00C9: return false; // LATIN CAPITAL LETTER E WITH ACUTE
88 case 0x00CA: return false; // LATIN CAPITAL LETTER E WITH CIRCUMFLEX
89 case 0x00CB: return false; // LATIN CAPITAL LETTER E WITH DIAERESIS
90 case 0x00CC: return false; // LATIN CAPITAL LETTER I WITH GRAVE
91 case 0x00CD: return false; // LATIN CAPITAL LETTER I WITH ACUTE
92 case 0x00CE: return false; // LATIN CAPITAL LETTER I WITH CIRCUMFLEX
93 case 0x00CF: return false; // LATIN CAPITAL LETTER I WITH DIAERESIS
94 case 0x00D0: return true; // place holder to enable table lookup
95 case 0x00D1: return false; // LATIN CAPITAL LETTER N WITH TILDE
96 case 0x00D2: return false; // LATIN CAPITAL LETTER O WITH GRAVE
97 case 0x00D3: return false; // LATIN CAPITAL LETTER O WITH ACUTE
98 case 0x00D4: return false; // LATIN CAPITAL LETTER O WITH CIRCUMFLEX
99 case 0x00D5: return false; // LATIN CAPITAL LETTER O WITH TILDE
100 case 0x00D6: return false; // LATIN CAPITAL LETTER O WITH DIAERESIS
101 case 0x00D7: return true; // place holder to enable table lookup
102 case 0x00D8: return false; // LATIN CAPITAL LETTER O WITH STROKE
103 case 0x00D9: return false; // LATIN CAPITAL LETTER U WITH GRAVE
104 case 0x00DA: return false; // LATIN CAPITAL LETTER U WITH ACUTE
105 case 0x00DB: return false; // LATIN CAPITAL LETTER U WITH CIRCUMFLEX
106 case 0x00DC: return false; // LATIN CAPITAL LETTER U WITH DIAERESIS
107 case 0x00DD: return false; // LATIN CAPITAL LETTER Y WITH ACUTE
108 case 0x00DE: return true; // place holder to enable table lookup
109 case 0x00DF: return false; // LATIN SMALL LETTER SHARP S
110 case 0x00E0: return false; // LATIN SMALL LETTER A WITH GRAVE
111 case 0x00E1: return false; // LATIN SMALL LETTER A WITH ACUTE
112 case 0x00E2: return false; // LATIN SMALL LETTER A WITH CIRCUMFLEX
113 case 0x00E3: return false; // LATIN SMALL LETTER A WITH TILDE
114 case 0x00E4: return false; // LATIN SMALL LETTER A WITH DIAERESIS
115 case 0x00E5: return false; // LATIN SMALL LETTER A WITH RING ABOVE
116 case 0x00E6: return false; // LATIN SMALL LETTER AE
117 case 0x00E7: return false; // LATIN SMALL LETTER C WITH CEDILLA
118 case 0x00E8: return false; // LATIN SMALL LETTER E WITH GRAVE
119 case 0x00E9: return false; // LATIN SMALL LETTER E WITH ACUTE
120 case 0x00EA: return false; // LATIN SMALL LETTER E WITH CIRCUMFLEX
121 case 0x00EB: return false; // LATIN SMALL LETTER E WITH DIAERESIS
122 case 0x00EC: return false; // LATIN SMALL LETTER I WITH GRAVE
123 case 0x00ED: return false; // LATIN SMALL LETTER I WITH ACUTE
124 case 0x00EE: return false; // LATIN SMALL LETTER I WITH CIRCUMFLEX
125 case 0x00EF: return false; // LATIN SMALL LETTER I WITH DIAERESIS
126 case 0x00F0: return true; // place holder to enable table lookup
127 case 0x00F1: return false; // LATIN SMALL LETTER N WITH TILDE
128 case 0x00F2: return false; // LATIN SMALL LETTER O WITH GRAVE
129 case 0x00F3: return false; // LATIN SMALL LETTER O WITH ACUTE
130 case 0x00F4: return false; // LATIN SMALL LETTER O WITH CIRCUMFLEX
131 case 0x00F5: return false; // LATIN SMALL LETTER O WITH TILDE
132 case 0x00F6: return false; // LATIN SMALL LETTER O WITH DIAERESIS
133 case 0x00F8: return false; // LATIN SMALL LETTER O WITH STROKE
134 case 0x00F9: return false; // LATIN SMALL LETTER U WITH GRAVE
135 case 0x00FA: return false; // LATIN SMALL LETTER U WITH ACUTE
136 case 0x00FB: return false; // LATIN SMALL LETTER U WITH CIRCUMFLEX
137 case 0x00FC: return false; // LATIN SMALL LETTER U WITH DIAERESIS
138 case 0x00FD: return false; // LATIN SMALL LETTER Y WITH ACUTE
139 case 0x00FE: return true; // place holder to enable table lookup
140 case 0x00FF: return false; // LATIN SMALL LETTER Y WITH DIAERESIS
141 case 0x0100: return true; // place holder to enable table lookup
142 case 0x0101: return true; // place holder to enable table lookup
143 case 0x0102: return true; // place holder to enable table lookup
144 case 0x0103: return true; // place holder to enable table lookup
145 case 0x0104: return true; // place holder to enable table lookup
146 case 0x0105: return true; // place holder to enable table lookup
147 case 0x0106: return true; // place holder to enable table lookup
148 case 0x0107: return true; // place holder to enable table lookup
149 case 0x0108: return true; // place holder to enable table lookup
150 case 0x0109: return true; // place holder to enable table lookup
151 case 0x010A: return false; // LATIN CAPITAL LETTER C WITH DOT ABOVE
152 case 0x010B: return false; // LATIN SMALL LETTER C WITH DOT ABOVE
153 case 0x010C: return true; // place holder to enable table lookup
154 case 0x010D: return true; // place holder to enable table lookup
155 case 0x010E: return true; // place holder to enable table lookup
156 case 0x010F: return true; // place holder to enable table lookup
157 case 0x0110: return true; // place holder to enable table lookup
158 case 0x0111: return true; // place holder to enable table lookup
159 case 0x0112: return true; // place holder to enable table lookup
160 case 0x0113: return true; // place holder to enable table lookup
161 case 0x0114: return true; // place holder to enable table lookup
162 case 0x0115: return true; // place holder to enable table lookup
163 case 0x0116: return true; // place holder to enable table lookup
164 case 0x0117: return true; // place holder to enable table lookup
165 case 0x0118: return true; // place holder to enable table lookup
166 case 0x0119: return true; // place holder to enable table lookup
167 case 0x011A: return true; // place holder to enable table lookup
168 case 0x011B: return true; // place holder to enable table lookup
169 case 0x011C: return true; // place holder to enable table lookup
170 case 0x011D: return true; // place holder to enable table lookup
171 case 0x011E: return true; // place holder to enable table lookup
172 case 0x011F: return true; // place holder to enable table lookup
173 case 0x0120: return false; // LATIN CAPITAL LETTER G WITH DOT ABOVE
174 case 0x0121: return false; // LATIN SMALL LETTER G WITH DOT ABOVE
175 }
176         switch (c) {
177             case 0x0174: return false; // LATIN CAPITAL LETTER W WITH CIRCUMFLEX
178 case 0x0175: return false; // LATIN SMALL LETTER W WITH CIRCUMFLEX
179 case 0x0176: return false; // LATIN CAPITAL LETTER Y WITH CIRCUMFLEX
180 case 0x0177: return false; // LATIN SMALL LETTER Y WITH CIRCUMFLEX
181 case 0x0178: return false; // LATIN CAPITAL LETTER Y WITH DIAERESIS
182 }
183         switch (c) {
184             case 0x1E02: return false; // LATIN CAPITAL LETTER B WITH DOT ABOVE
185 case 0x1E03: return false; // LATIN SMALL LETTER B WITH DOT ABOVE
186 case 0x1E04: return true; // place holder to enable table lookup
187 case 0x1E05: return true; // place holder to enable table lookup
188 case 0x1E06: return true; // place holder to enable table lookup
189 case 0x1E07: return true; // place holder to enable table lookup
190 case 0x1E08: return true; // place holder to enable table lookup
191 case 0x1E09: return true; // place holder to enable table lookup
192 case 0x1E0A: return false; // LATIN CAPITAL LETTER D WITH DOT ABOVE
193 case 0x1E0B: return false; // LATIN SMALL LETTER D WITH DOT ABOVE
194 case 0x1E0C: return true; // place holder to enable table lookup
195 case 0x1E0D: return true; // place holder to enable table lookup
196 case 0x1E0E: return true; // place holder to enable table lookup
197 case 0x1E0F: return true; // place holder to enable table lookup
198 case 0x1E10: return true; // place holder to enable table lookup
199 case 0x1E11: return true; // place holder to enable table lookup
200 case 0x1E12: return true; // place holder to enable table lookup
201 case 0x1E13: return true; // place holder to enable table lookup
202 case 0x1E14: return true; // place holder to enable table lookup
203 case 0x1E15: return true; // place holder to enable table lookup
204 case 0x1E16: return true; // place holder to enable table lookup
205 case 0x1E17: return true; // place holder to enable table lookup
206 case 0x1E18: return true; // place holder to enable table lookup
207 case 0x1E19: return true; // place holder to enable table lookup
208 case 0x1E1A: return true; // place holder to enable table lookup
209 case 0x1E1B: return true; // place holder to enable table lookup
210 case 0x1E1C: return true; // place holder to enable table lookup
211 case 0x1E1D: return true; // place holder to enable table lookup
212 case 0x1E1E: return false; // LATIN CAPITAL LETTER F WITH DOT ABOVE
213 case 0x1E1F: return false; // LATIN SMALL LETTER F WITH DOT ABOVE
214 case 0x1E20: return true; // place holder to enable table lookup
215 case 0x1E21: return true; // place holder to enable table lookup
216 case 0x1E22: return true; // place holder to enable table lookup
217 case 0x1E23: return true; // place holder to enable table lookup
218 case 0x1E24: return true; // place holder to enable table lookup
219 case 0x1E25: return true; // place holder to enable table lookup
220 case 0x1E26: return true; // place holder to enable table lookup
221 case 0x1E27: return true; // place holder to enable table lookup
222 case 0x1E28: return true; // place holder to enable table lookup
223 case 0x1E29: return true; // place holder to enable table lookup
224 case 0x1E2A: return true; // place holder to enable table lookup
225 case 0x1E2B: return true; // place holder to enable table lookup
226 case 0x1E2C: return true; // place holder to enable table lookup
227 case 0x1E2D: return true; // place holder to enable table lookup
228 case 0x1E2E: return true; // place holder to enable table lookup
229 case 0x1E2F: return true; // place holder to enable table lookup
230 case 0x1E30: return true; // place holder to enable table lookup
231 case 0x1E31: return true; // place holder to enable table lookup
232 case 0x1E32: return true; // place holder to enable table lookup
233 case 0x1E33: return true; // place holder to enable table lookup
234 case 0x1E34: return true; // place holder to enable table lookup
235 case 0x1E35: return true; // place holder to enable table lookup
236 case 0x1E36: return true; // place holder to enable table lookup
237 case 0x1E37: return true; // place holder to enable table lookup
238 case 0x1E38: return true; // place holder to enable table lookup
239 case 0x1E39: return true; // place holder to enable table lookup
240 case 0x1E3A: return true; // place holder to enable table lookup
241 case 0x1E3B: return true; // place holder to enable table lookup
242 case 0x1E3C: return true; // place holder to enable table lookup
243 case 0x1E3D: return true; // place holder to enable table lookup
244 case 0x1E3E: return true; // place holder to enable table lookup
245 case 0x1E3F: return true; // place holder to enable table lookup
246 case 0x1E40: return false; // LATIN CAPITAL LETTER M WITH DOT ABOVE
247 case 0x1E41: return false; // LATIN SMALL LETTER M WITH DOT ABOVE
248 case 0x1E42: return true; // place holder to enable table lookup
249 case 0x1E43: return true; // place holder to enable table lookup
250 case 0x1E44: return true; // place holder to enable table lookup
251 case 0x1E45: return true; // place holder to enable table lookup
252 case 0x1E46: return true; // place holder to enable table lookup
253 case 0x1E47: return true; // place holder to enable table lookup
254 case 0x1E48: return true; // place holder to enable table lookup
255 case 0x1E49: return true; // place holder to enable table lookup
256 case 0x1E4A: return true; // place holder to enable table lookup
257 case 0x1E4B: return true; // place holder to enable table lookup
258 case 0x1E4C: return true; // place holder to enable table lookup
259 case 0x1E4D: return true; // place holder to enable table lookup
260 case 0x1E4E: return true; // place holder to enable table lookup
261 case 0x1E4F: return true; // place holder to enable table lookup
262 case 0x1E50: return true; // place holder to enable table lookup
263 case 0x1E51: return true; // place holder to enable table lookup
264 case 0x1E52: return true; // place holder to enable table lookup
265 case 0x1E53: return true; // place holder to enable table lookup
266 case 0x1E54: return true; // place holder to enable table lookup
267 case 0x1E55: return true; // place holder to enable table lookup
268 case 0x1E56: return false; // LATIN CAPITAL LETTER P WITH DOT ABOVE
269 case 0x1E57: return false; // LATIN SMALL LETTER P WITH DOT ABOVE
270 case 0x1E58: return true; // place holder to enable table lookup
271 case 0x1E59: return true; // place holder to enable table lookup
272 case 0x1E5A: return true; // place holder to enable table lookup
273 case 0x1E5B: return true; // place holder to enable table lookup
274 case 0x1E5C: return true; // place holder to enable table lookup
275 case 0x1E5D: return true; // place holder to enable table lookup
276 case 0x1E5E: return true; // place holder to enable table lookup
277 case 0x1E5F: return true; // place holder to enable table lookup
278 case 0x1E60: return false; // LATIN CAPITAL LETTER S WITH DOT ABOVE
279 case 0x1E61: return false; // LATIN SMALL LETTER S WITH DOT ABOVE
280 case 0x1E62: return true; // place holder to enable table lookup
281 case 0x1E63: return true; // place holder to enable table lookup
282 case 0x1E64: return true; // place holder to enable table lookup
283 case 0x1E65: return true; // place holder to enable table lookup
284 case 0x1E66: return true; // place holder to enable table lookup
285 case 0x1E67: return true; // place holder to enable table lookup
286 case 0x1E68: return true; // place holder to enable table lookup
287 case 0x1E69: return true; // place holder to enable table lookup
288 case 0x1E6A: return false; // LATIN CAPITAL LETTER T WITH DOT ABOVE
289 case 0x1E6B: return false; // LATIN SMALL LETTER T WITH DOT ABOVE
290 case 0x1E6C: return true; // place holder to enable table lookup
291 case 0x1E6D: return true; // place holder to enable table lookup
292 case 0x1E6E: return true; // place holder to enable table lookup
293 case 0x1E6F: return true; // place holder to enable table lookup
294 case 0x1E70: return true; // place holder to enable table lookup
295 case 0x1E71: return true; // place holder to enable table lookup
296 case 0x1E72: return true; // place holder to enable table lookup
297 case 0x1E73: return true; // place holder to enable table lookup
298 case 0x1E74: return true; // place holder to enable table lookup
299 case 0x1E75: return true; // place holder to enable table lookup
300 case 0x1E76: return true; // place holder to enable table lookup
301 case 0x1E77: return true; // place holder to enable table lookup
302 case 0x1E78: return true; // place holder to enable table lookup
303 case 0x1E79: return true; // place holder to enable table lookup
304 case 0x1E7A: return true; // place holder to enable table lookup
305 case 0x1E7B: return true; // place holder to enable table lookup
306 case 0x1E7C: return true; // place holder to enable table lookup
307 case 0x1E7D: return true; // place holder to enable table lookup
308 case 0x1E7E: return true; // place holder to enable table lookup
309 case 0x1E7F: return true; // place holder to enable table lookup
310 case 0x1E80: return false; // LATIN CAPITAL LETTER W WITH GRAVE
311 case 0x1E81: return false; // LATIN SMALL LETTER W WITH GRAVE
312 case 0x1E82: return false; // LATIN CAPITAL LETTER W WITH ACUTE
313 case 0x1E83: return false; // LATIN SMALL LETTER W WITH ACUTE
314 case 0x1E84: return false; // LATIN CAPITAL LETTER W WITH DIAERESIS
315 case 0x1E85: return false; // LATIN SMALL LETTER W WITH DIAERESIS
316 }
317         switch (c) {
318             case 0x1EF2: return false; // LATIN CAPITAL LETTER Y WITH GRAVE
319 case 0x1EF3: return false; // LATIN SMALL LETTER Y WITH GRAVE
320 }
321         
322         return true;
323         
324     }
325
326 }
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