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1 office 1 /* GLIB - Library of useful routines for C programming
2 * Copyright (C) 2001 Matthias Clasen <matthiasc@poet.de>
3 *
4 * This library is free software; you can redistribute it and/or
5 * modify it under the terms of the GNU Lesser General Public
6 * License as published by the Free Software Foundation; either
7 * version 2 of the License, or (at your option) any later version.
8 *
9 * This library is distributed in the hope that it will be useful,
10 * but WITHOUT ANY WARRANTY; without even the implied warranty of
11 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
12 * Lesser General Public License for more details.
13 *
14 * You should have received a copy of the GNU Lesser General Public
15 * License along with this library; if not, see <http://www.gnu.org/licenses/>.
16 */
17  
18 #include "glib.h"
19 #include <string.h>
20  
21 #define UNICODE_VALID(Char) \
22 ((Char) < 0x110000 && \
23 (((Char) & 0xFFFFF800) != 0xD800) && \
24 ((Char) < 0xFDD0 || (Char) > 0xFDEF) && \
25 ((Char) & 0xFFFE) != 0xFFFE)
26  
27  
28 typedef struct {
29 const gchar *text;
30 gint max_len;
31 gint offset;
32 gboolean valid;
33 } Test;
34  
35 Test test[] = {
36 /* some tests to check max_len handling */
37 /* length 1 */
38 { "abcde", -1, 5, TRUE },
39 { "abcde", 3, 3, TRUE },
40 { "abcde", 5, 5, TRUE },
41 { "abcde", 7, 5, FALSE },
42 /* length 2 */
43 { "\xc2\xa9\xc2\xa9\xc2\xa9", -1, 6, TRUE },
44 { "\xc2\xa9\xc2\xa9\xc2\xa9", 1, 0, FALSE },
45 { "\xc2\xa9\xc2\xa9\xc2\xa9", 2, 2, TRUE },
46 { "\xc2\xa9\xc2\xa9\xc2\xa9", 3, 2, FALSE },
47 { "\xc2\xa9\xc2\xa9\xc2\xa9", 4, 4, TRUE },
48 { "\xc2\xa9\xc2\xa9\xc2\xa9", 5, 4, FALSE },
49 { "\xc2\xa9\xc2\xa9\xc2\xa9", 6, 6, TRUE },
50 { "\xc2\xa9\xc2\xa9\xc2\xa9", 7, 6, FALSE },
51 /* length 3 */
52 { "\xe2\x89\xa0\xe2\x89\xa0", -1, 6, TRUE },
53 { "\xe2\x89\xa0\xe2\x89\xa0", 1, 0, FALSE },
54 { "\xe2\x89\xa0\xe2\x89\xa0", 2, 0, FALSE },
55 { "\xe2\x89\xa0\xe2\x89\xa0", 3, 3, TRUE },
56 { "\xe2\x89\xa0\xe2\x89\xa0", 4, 3, FALSE },
57 { "\xe2\x89\xa0\xe2\x89\xa0", 5, 3, FALSE },
58 { "\xe2\x89\xa0\xe2\x89\xa0", 6, 6, TRUE },
59 { "\xe2\x89\xa0\xe2\x89\xa0", 7, 6, FALSE },
60  
61 /* examples from http://www.cl.cam.ac.uk/~mgk25/ucs/examples/UTF-8-test.txt */
62 /* greek 'kosme' */
63 { "\xce\xba\xe1\xbd\xb9\xcf\x83\xce\xbc\xce\xb5", -1, 11, TRUE },
64 /* first sequence of each length */
65 { "\x00", -1, 0, TRUE },
66 { "\xc2\x80", -1, 2, TRUE },
67 { "\xe0\xa0\x80", -1, 3, TRUE },
68 { "\xf0\x90\x80\x80", -1, 4, TRUE },
69 { "\xf8\x88\x80\x80\x80", -1, 0, FALSE },
70 { "\xfc\x84\x80\x80\x80\x80", -1, 0, FALSE },
71 /* last sequence of each length */
72 { "\x7f", -1, 1, TRUE },
73 { "\xdf\xbf", -1, 2, TRUE },
74 { "\xef\xbf\xbf", -1, 3, TRUE },
75 { "\xf7\xbf\xbf\xbf", -1, 0, FALSE },
76 { "\xfb\xbf\xbf\xbf\xbf", -1, 0, FALSE },
77 { "\xfd\xbf\xbf\xbf\xbf\xbf", -1, 0, FALSE },
78 /* other boundary conditions */
79 { "\xed\x9f\xbf", -1, 3, TRUE },
80 { "\xee\x80\x80", -1, 3, TRUE },
81 { "\xef\xbf\xbd", -1, 3, TRUE },
82 { "\xf4\x8f\xbf\xbf", -1, 4, TRUE },
83 { "\xf4\x90\x80\x80", -1, 0, FALSE },
84 /* malformed sequences */
85 /* continuation bytes */
86 { "\x80", -1, 0, FALSE },
87 { "\xbf", -1, 0, FALSE },
88 { "\xbf\x80", -1, 0, FALSE },
89 { "\x80\xbf", -1, 0, FALSE },
90 { "\x80\xbf\x80", -1, 0, FALSE },
91 { "\x80\xbf\x80\xbf", -1, 0, FALSE },
92 { "\x80\xbf\x80\xbf\x80", -1, 0, FALSE },
93 { "\x80\xbf\x80\xbf\x80\xbf", -1, 0, FALSE },
94 { "\x80\xbf\x80\xbf\x80\xbf\x80", -1, 0, FALSE },
95  
96 /* all possible continuation byte */
97 { "\x80", -1, 0, FALSE },
98 { "\x81", -1, 0, FALSE },
99 { "\x82", -1, 0, FALSE },
100 { "\x83", -1, 0, FALSE },
101 { "\x84", -1, 0, FALSE },
102 { "\x85", -1, 0, FALSE },
103 { "\x86", -1, 0, FALSE },
104 { "\x87", -1, 0, FALSE },
105 { "\x88", -1, 0, FALSE },
106 { "\x89", -1, 0, FALSE },
107 { "\x8a", -1, 0, FALSE },
108 { "\x8b", -1, 0, FALSE },
109 { "\x8c", -1, 0, FALSE },
110 { "\x8d", -1, 0, FALSE },
111 { "\x8e", -1, 0, FALSE },
112 { "\x8f", -1, 0, FALSE },
113 { "\x90", -1, 0, FALSE },
114 { "\x91", -1, 0, FALSE },
115 { "\x92", -1, 0, FALSE },
116 { "\x93", -1, 0, FALSE },
117 { "\x94", -1, 0, FALSE },
118 { "\x95", -1, 0, FALSE },
119 { "\x96", -1, 0, FALSE },
120 { "\x97", -1, 0, FALSE },
121 { "\x98", -1, 0, FALSE },
122 { "\x99", -1, 0, FALSE },
123 { "\x9a", -1, 0, FALSE },
124 { "\x9b", -1, 0, FALSE },
125 { "\x9c", -1, 0, FALSE },
126 { "\x9d", -1, 0, FALSE },
127 { "\x9e", -1, 0, FALSE },
128 { "\x9f", -1, 0, FALSE },
129 { "\xa0", -1, 0, FALSE },
130 { "\xa1", -1, 0, FALSE },
131 { "\xa2", -1, 0, FALSE },
132 { "\xa3", -1, 0, FALSE },
133 { "\xa4", -1, 0, FALSE },
134 { "\xa5", -1, 0, FALSE },
135 { "\xa6", -1, 0, FALSE },
136 { "\xa7", -1, 0, FALSE },
137 { "\xa8", -1, 0, FALSE },
138 { "\xa9", -1, 0, FALSE },
139 { "\xaa", -1, 0, FALSE },
140 { "\xab", -1, 0, FALSE },
141 { "\xac", -1, 0, FALSE },
142 { "\xad", -1, 0, FALSE },
143 { "\xae", -1, 0, FALSE },
144 { "\xaf", -1, 0, FALSE },
145 { "\xb0", -1, 0, FALSE },
146 { "\xb1", -1, 0, FALSE },
147 { "\xb2", -1, 0, FALSE },
148 { "\xb3", -1, 0, FALSE },
149 { "\xb4", -1, 0, FALSE },
150 { "\xb5", -1, 0, FALSE },
151 { "\xb6", -1, 0, FALSE },
152 { "\xb7", -1, 0, FALSE },
153 { "\xb8", -1, 0, FALSE },
154 { "\xb9", -1, 0, FALSE },
155 { "\xba", -1, 0, FALSE },
156 { "\xbb", -1, 0, FALSE },
157 { "\xbc", -1, 0, FALSE },
158 { "\xbd", -1, 0, FALSE },
159 { "\xbe", -1, 0, FALSE },
160 { "\xbf", -1, 0, FALSE },
161 /* lone start characters */
162 { "\xc0\x20", -1, 0, FALSE },
163 { "\xc1\x20", -1, 0, FALSE },
164 { "\xc2\x20", -1, 0, FALSE },
165 { "\xc3\x20", -1, 0, FALSE },
166 { "\xc4\x20", -1, 0, FALSE },
167 { "\xc5\x20", -1, 0, FALSE },
168 { "\xc6\x20", -1, 0, FALSE },
169 { "\xc7\x20", -1, 0, FALSE },
170 { "\xc8\x20", -1, 0, FALSE },
171 { "\xc9\x20", -1, 0, FALSE },
172 { "\xca\x20", -1, 0, FALSE },
173 { "\xcb\x20", -1, 0, FALSE },
174 { "\xcc\x20", -1, 0, FALSE },
175 { "\xcd\x20", -1, 0, FALSE },
176 { "\xce\x20", -1, 0, FALSE },
177 { "\xcf\x20", -1, 0, FALSE },
178 { "\xd0\x20", -1, 0, FALSE },
179 { "\xd1\x20", -1, 0, FALSE },
180 { "\xd2\x20", -1, 0, FALSE },
181 { "\xd3\x20", -1, 0, FALSE },
182 { "\xd4\x20", -1, 0, FALSE },
183 { "\xd5\x20", -1, 0, FALSE },
184 { "\xd6\x20", -1, 0, FALSE },
185 { "\xd7\x20", -1, 0, FALSE },
186 { "\xd8\x20", -1, 0, FALSE },
187 { "\xd9\x20", -1, 0, FALSE },
188 { "\xda\x20", -1, 0, FALSE },
189 { "\xdb\x20", -1, 0, FALSE },
190 { "\xdc\x20", -1, 0, FALSE },
191 { "\xdd\x20", -1, 0, FALSE },
192 { "\xde\x20", -1, 0, FALSE },
193 { "\xdf\x20", -1, 0, FALSE },
194 { "\xe0\x20", -1, 0, FALSE },
195 { "\xe1\x20", -1, 0, FALSE },
196 { "\xe2\x20", -1, 0, FALSE },
197 { "\xe3\x20", -1, 0, FALSE },
198 { "\xe4\x20", -1, 0, FALSE },
199 { "\xe5\x20", -1, 0, FALSE },
200 { "\xe6\x20", -1, 0, FALSE },
201 { "\xe7\x20", -1, 0, FALSE },
202 { "\xe8\x20", -1, 0, FALSE },
203 { "\xe9\x20", -1, 0, FALSE },
204 { "\xea\x20", -1, 0, FALSE },
205 { "\xeb\x20", -1, 0, FALSE },
206 { "\xec\x20", -1, 0, FALSE },
207 { "\xed\x20", -1, 0, FALSE },
208 { "\xee\x20", -1, 0, FALSE },
209 { "\xef\x20", -1, 0, FALSE },
210 { "\xf0\x20", -1, 0, FALSE },
211 { "\xf1\x20", -1, 0, FALSE },
212 { "\xf2\x20", -1, 0, FALSE },
213 { "\xf3\x20", -1, 0, FALSE },
214 { "\xf4\x20", -1, 0, FALSE },
215 { "\xf5\x20", -1, 0, FALSE },
216 { "\xf6\x20", -1, 0, FALSE },
217 { "\xf7\x20", -1, 0, FALSE },
218 { "\xf8\x20", -1, 0, FALSE },
219 { "\xf9\x20", -1, 0, FALSE },
220 { "\xfa\x20", -1, 0, FALSE },
221 { "\xfb\x20", -1, 0, FALSE },
222 { "\xfc\x20", -1, 0, FALSE },
223 { "\xfd\x20", -1, 0, FALSE },
224 /* missing continuation bytes */
225 { "\x20\xc0", -1, 1, FALSE },
226 { "\x20\xe0\x80", -1, 1, FALSE },
227 { "\x20\xf0\x80\x80", -1, 1, FALSE },
228 { "\x20\xf8\x80\x80\x80", -1, 1, FALSE },
229 { "\x20\xfc\x80\x80\x80\x80", -1, 1, FALSE },
230 { "\x20\xdf", -1, 1, FALSE },
231 { "\x20\xef\xbf", -1, 1, FALSE },
232 { "\x20\xf7\xbf\xbf", -1, 1, FALSE },
233 { "\x20\xfb\xbf\xbf\xbf", -1, 1, FALSE },
234 { "\x20\xfd\xbf\xbf\xbf\xbf", -1, 1, FALSE },
235 /* impossible bytes */
236 { "\x20\xfe\x20", -1, 1, FALSE },
237 { "\x20\xff\x20", -1, 1, FALSE },
238 /* overlong sequences */
239 { "\x20\xc0\xaf\x20", -1, 1, FALSE },
240 { "\x20\xe0\x80\xaf\x20", -1, 1, FALSE },
241 { "\x20\xf0\x80\x80\xaf\x20", -1, 1, FALSE },
242 { "\x20\xf8\x80\x80\x80\xaf\x20", -1, 1, FALSE },
243 { "\x20\xfc\x80\x80\x80\x80\xaf\x20", -1, 1, FALSE },
244 { "\x20\xc1\xbf\x20", -1, 1, FALSE },
245 { "\x20\xe0\x9f\xbf\x20", -1, 1, FALSE },
246 { "\x20\xf0\x8f\xbf\xbf\x20", -1, 1, FALSE },
247 { "\x20\xf8\x87\xbf\xbf\xbf\x20", -1, 1, FALSE },
248 { "\x20\xfc\x83\xbf\xbf\xbf\xbf\x20", -1, 1, FALSE },
249 { "\x20\xc0\x80\x20", -1, 1, FALSE },
250 { "\x20\xe0\x80\x80\x20", -1, 1, FALSE },
251 { "\x20\xf0\x80\x80\x80\x20", -1, 1, FALSE },
252 { "\x20\xf8\x80\x80\x80\x80\x20", -1, 1, FALSE },
253 { "\x20\xfc\x80\x80\x80\x80\x80\x20", -1, 1, FALSE },
254 /* illegal code positions */
255 { "\x20\xed\xa0\x80\x20", -1, 1, FALSE },
256 { "\x20\xed\xad\xbf\x20", -1, 1, FALSE },
257 { "\x20\xed\xae\x80\x20", -1, 1, FALSE },
258 { "\x20\xed\xaf\xbf\x20", -1, 1, FALSE },
259 { "\x20\xed\xb0\x80\x20", -1, 1, FALSE },
260 { "\x20\xed\xbe\x80\x20", -1, 1, FALSE },
261 { "\x20\xed\xbf\xbf\x20", -1, 1, FALSE },
262 { "\x20\xed\xa0\x80\xed\xb0\x80\x20", -1, 1, FALSE },
263 { "\x20\xed\xa0\x80\xed\xbf\xbf\x20", -1, 1, FALSE },
264 { "\x20\xed\xad\xbf\xed\xb0\x80\x20", -1, 1, FALSE },
265 { "\x20\xed\xad\xbf\xed\xbf\xbf\x20", -1, 1, FALSE },
266 { "\x20\xed\xae\x80\xed\xb0\x80\x20", -1, 1, FALSE },
267 { "\x20\xed\xae\x80\xed\xbf\xbf\x20", -1, 1, FALSE },
268 { "\x20\xed\xaf\xbf\xed\xb0\x80\x20", -1, 1, FALSE },
269 { "\x20\xed\xaf\xbf\xed\xbf\xbf\x20", -1, 1, FALSE },
270  
271 { NULL, }
272 };
273  
274 static void
275 do_test (gconstpointer d)
276 {
277 const Test *test = d;
278 const gchar *end;
279 gboolean result;
280  
281 result = g_utf8_validate (test->text, test->max_len, &end);
282  
283 g_assert (result == test->valid);
284 g_assert (end - test->text == test->offset);
285  
286 if (test->max_len < 0)
287 {
288 result = g_utf8_validate (test->text, strlen (test->text), &end);
289  
290 g_assert (result == test->valid);
291 g_assert (end - test->text == test->offset);
292 }
293 }
294  
295 int
296 main (int argc, char *argv[])
297 {
298 gint i;
299 gchar *path;
300  
301 g_test_init (&argc, &argv, NULL);
302  
303 for (i = 0; test[i].text; i++)
304 {
305 path = g_strdup_printf ("/utf8/validate/%d", i);
306 g_test_add_data_func (path, &test[i], do_test);
307 g_free (path);
308 }
309  
310 return g_test_run ();
311 }