c6d25d8d |
1 | /* |
2 | * utf8.c - routines to handle UTF-8. |
3 | */ |
4 | |
5 | #ifndef ENUM_CHARSETS |
6 | |
7 | #include "charset.h" |
8 | #include "internal.h" |
9 | |
10 | /* |
11 | * UTF-8 has no associated data, so `charset' may be ignored. |
12 | */ |
13 | |
14 | static void read_utf8(charset_spec const *charset, long int input_chr, |
15 | charset_state *state, |
16 | void (*emit)(void *ctx, long int output), void *emitctx) |
17 | { |
18 | UNUSEDARG(charset); |
19 | |
20 | /* |
e3e8f8c9 |
21 | * For reading UTF-8, the `state' word contains the character |
22 | * being accumulated. This is shifted left by six bits each |
23 | * time a character is added, and there's a single '1' bit |
24 | * in what would be bit 31 of the final character, which we |
25 | * use to detect when it's complete. |
c6d25d8d |
26 | * |
27 | * As required, the state is zero when we are not in the middle |
28 | * of a multibyte character at all. |
29 | * |
30 | * For example, when reading E9 8D 8B, starting at state=0: |
31 | * |
e3e8f8c9 |
32 | * - after E9, the state is 0x00080009 |
33 | * - after 8D, the state is 0x0200024d |
34 | * - after 8B, the state conceptually becomes 0x8000934b, at |
c6d25d8d |
35 | * which point we notice we've got as many characters as we |
36 | * were expecting, output U+934B, and reset the state to |
37 | * zero. |
38 | * |
e3e8f8c9 |
39 | * If we detect an overlong sequence, we shift the marker bit |
40 | * right one bit. This is safe because an overlong sequence |
41 | * can't encode a top-bit-set character. Not that we worry |
42 | * about what overlong sequences are trying to encode, but |
43 | * it's nice to know that we could if we wanted to. |
44 | * |
c6d25d8d |
45 | * Note that the maximum number of bits we might need to store |
46 | * in the character value field is 25 (U+7FFFFFFF contains 31 |
47 | * bits, but we will never actually store its full value |
48 | * because when we receive the last 6 bits in the final |
49 | * continuation byte we will output it and revert the state to |
e3e8f8c9 |
50 | * zero). Hence we need 26 bits in total. |
c6d25d8d |
51 | */ |
52 | |
53 | if (input_chr < 0x80) { |
54 | /* |
55 | * Single-byte character. If the state is nonzero before |
56 | * coming here, output an error for an incomplete sequence. |
57 | * Then output the character. |
58 | */ |
59 | if (state->s0 != 0) { |
60 | emit(emitctx, ERROR); |
61 | state->s0 = 0; |
62 | } |
63 | emit(emitctx, input_chr); |
64 | } else if (input_chr == 0xFE || input_chr == 0xFF) { |
65 | /* |
66 | * FE and FF bytes should _never_ occur in UTF-8. They are |
67 | * automatic errors; if the state was nonzero to start |
68 | * with, output a further error for an incomplete sequence. |
69 | */ |
70 | if (state->s0 != 0) { |
71 | emit(emitctx, ERROR); |
72 | state->s0 = 0; |
73 | } |
74 | emit(emitctx, ERROR); |
75 | } else if (input_chr >= 0x80 && input_chr < 0xC0) { |
76 | /* |
77 | * Continuation byte. Output an error for an unexpected |
78 | * continuation byte, if the state is zero. |
79 | */ |
80 | if (state->s0 == 0) { |
81 | emit(emitctx, ERROR); |
82 | } else { |
83 | unsigned long charval; |
c6d25d8d |
84 | |
85 | /* |
86 | * Otherwise, accumulate more of the character value. |
87 | */ |
e3e8f8c9 |
88 | charval = state->s0; |
c6d25d8d |
89 | charval = (charval << 6) | (input_chr & 0x3F); |
90 | |
91 | /* |
e3e8f8c9 |
92 | * Detect overlong encodings. We're looking for too many |
93 | * leading zeroes given our position in the character. If |
94 | * we find an overlong encoding, clear the current marker |
95 | * bit and set the bit below it. Overlong two-byte |
96 | * encodings are a special case, and are detected when we |
97 | * read their inital byte. |
98 | */ |
99 | if ((charval & 0xffffffe0L) == 0x02000000L) |
100 | charval ^= 0x03000000L; |
101 | else if ((charval & 0xfffffff0L) == 0x00080000L) |
102 | charval ^= 0x000c0000L; |
103 | else if ((charval & 0xfffffff8L) == 0x00002000L) |
104 | charval ^= 0x00003000L; |
105 | else if ((charval & 0xfffffffcL) == 0x00000080L) |
106 | charval ^= 0x000000c0L; |
107 | |
108 | /* |
c6d25d8d |
109 | * Check the byte counts; if we have not reached the |
110 | * end of the character, update the state and return. |
111 | */ |
e3e8f8c9 |
112 | if (!(charval & 0xc0000000L)) { |
113 | state->s0 = charval; |
c6d25d8d |
114 | return; |
115 | } |
116 | |
117 | /* |
e3e8f8c9 |
118 | * Clear the marker bit, or set it if it's clear, |
119 | * indicating an overlong sequence. |
120 | */ |
121 | charval ^= 0x80000000L; |
122 | |
123 | /* |
c6d25d8d |
124 | * Now we know we've reached the end of the character. |
125 | * `charval' is the Unicode value. We should check for |
126 | * various invalid things, and then either output |
127 | * charval or an error. In all cases we reset the state |
128 | * to zero. |
129 | */ |
c6d25d8d |
130 | state->s0 = 0; |
131 | |
e3e8f8c9 |
132 | if (charval & 0x80000000L) { |
133 | /* We got an overlong sequence. */ |
134 | emit(emitctx, ERROR); |
135 | } else if (charval >= 0xD800 && charval < 0xE000) { |
c6d25d8d |
136 | /* |
137 | * Surrogates (0xD800-0xDFFF) may never be encoded |
138 | * in UTF-8. A surrogate pair in Unicode should |
139 | * have been encoded as a single UTF-8 character |
140 | * occupying more than three bytes. |
141 | */ |
142 | emit(emitctx, ERROR); |
143 | } else if (charval == 0xFFFE || charval == 0xFFFF) { |
144 | /* |
145 | * U+FFFE and U+FFFF are invalid Unicode characters |
146 | * and may never be encoded in UTF-8. (This is one |
147 | * reason why U+FFFF is our way of signalling an |
148 | * error to our `emit' function :-) |
149 | */ |
150 | emit(emitctx, ERROR); |
c6d25d8d |
151 | } else { |
152 | /* |
153 | * Oh, all right. We'll let this one off. |
154 | */ |
155 | emit(emitctx, charval); |
156 | } |
157 | } |
158 | |
159 | } else { |
160 | /* |
161 | * Lead byte. First output an error for an incomplete |
162 | * sequence, if the state is nonzero. |
163 | */ |
164 | if (state->s0 != 0) |
165 | emit(emitctx, ERROR); |
166 | |
167 | /* |
168 | * Now deal with the lead byte: work out the number of |
169 | * bytes we expect to see in this character, and extract |
170 | * the initial bits of it too. |
171 | */ |
e3e8f8c9 |
172 | if (input_chr >= 0xC0 && input_chr < 0xC2) { |
173 | /* beginning of an overlong two-byte sequence */ |
174 | state->s0 = 0x01000000L | (input_chr & 0x1F); |
175 | } else if (input_chr >= 0xC2 && input_chr < 0xE0) { |
176 | state->s0 = 0x02000000L | (input_chr & 0x1F); |
c6d25d8d |
177 | } else if (input_chr >= 0xE0 && input_chr < 0xF0) { |
e3e8f8c9 |
178 | state->s0 = 0x00080000L | (input_chr & 0x0F); |
c6d25d8d |
179 | } else if (input_chr >= 0xF0 && input_chr < 0xF8) { |
e3e8f8c9 |
180 | state->s0 = 0x00002000L | (input_chr & 0x07); |
c6d25d8d |
181 | } else if (input_chr >= 0xF8 && input_chr < 0xFC) { |
e3e8f8c9 |
182 | state->s0 = 0x00000080L | (input_chr & 0x03); |
c6d25d8d |
183 | } else if (input_chr >= 0xFC && input_chr < 0xFE) { |
e3e8f8c9 |
184 | state->s0 = 0x00000002L | (input_chr & 0x01); |
c6d25d8d |
185 | } |
186 | } |
187 | } |
188 | |
189 | /* |
190 | * UTF-8 is a stateless multi-byte encoding (in the sense that just |
191 | * after any character has been completed, the state is always the |
192 | * same); hence when writing it, there is no need to use the |
193 | * charset_state. |
194 | */ |
195 | |
196 | static int write_utf8(charset_spec const *charset, long int input_chr, |
197 | charset_state *state, |
198 | void (*emit)(void *ctx, long int output), |
199 | void *emitctx) |
200 | { |
201 | UNUSEDARG(charset); |
202 | UNUSEDARG(state); |
203 | |
204 | if (input_chr == -1) |
205 | return TRUE; /* stateless; no cleanup required */ |
206 | |
207 | /* |
208 | * Refuse to output any illegal code points. |
209 | */ |
210 | if (input_chr == 0xFFFE || input_chr == 0xFFFF || |
211 | (input_chr >= 0xD800 && input_chr < 0xE000)) { |
212 | return FALSE; |
213 | } else if (input_chr < 0x80) { /* one-byte character */ |
214 | emit(emitctx, input_chr); |
215 | return TRUE; |
216 | } else if (input_chr < 0x800) { /* two-byte character */ |
217 | emit(emitctx, 0xC0 | (0x1F & (input_chr >> 6))); |
218 | emit(emitctx, 0x80 | (0x3F & (input_chr ))); |
219 | return TRUE; |
220 | } else if (input_chr < 0x10000) { /* three-byte character */ |
221 | emit(emitctx, 0xE0 | (0x0F & (input_chr >> 12))); |
222 | emit(emitctx, 0x80 | (0x3F & (input_chr >> 6))); |
223 | emit(emitctx, 0x80 | (0x3F & (input_chr ))); |
224 | return TRUE; |
225 | } else if (input_chr < 0x200000) { /* four-byte character */ |
226 | emit(emitctx, 0xF0 | (0x07 & (input_chr >> 18))); |
227 | emit(emitctx, 0x80 | (0x3F & (input_chr >> 12))); |
228 | emit(emitctx, 0x80 | (0x3F & (input_chr >> 6))); |
229 | emit(emitctx, 0x80 | (0x3F & (input_chr ))); |
230 | return TRUE; |
231 | } else if (input_chr < 0x4000000) {/* five-byte character */ |
232 | emit(emitctx, 0xF8 | (0x03 & (input_chr >> 24))); |
233 | emit(emitctx, 0x80 | (0x3F & (input_chr >> 18))); |
234 | emit(emitctx, 0x80 | (0x3F & (input_chr >> 12))); |
235 | emit(emitctx, 0x80 | (0x3F & (input_chr >> 6))); |
236 | emit(emitctx, 0x80 | (0x3F & (input_chr ))); |
237 | return TRUE; |
238 | } else { /* six-byte character */ |
239 | emit(emitctx, 0xFC | (0x01 & (input_chr >> 30))); |
240 | emit(emitctx, 0x80 | (0x3F & (input_chr >> 24))); |
241 | emit(emitctx, 0x80 | (0x3F & (input_chr >> 18))); |
242 | emit(emitctx, 0x80 | (0x3F & (input_chr >> 12))); |
243 | emit(emitctx, 0x80 | (0x3F & (input_chr >> 6))); |
244 | emit(emitctx, 0x80 | (0x3F & (input_chr ))); |
245 | return TRUE; |
246 | } |
247 | } |
248 | |
249 | #ifdef TESTMODE |
250 | |
251 | #include <stdio.h> |
252 | #include <stdarg.h> |
253 | |
254 | int total_errs = 0; |
255 | |
256 | void utf8_emit(void *ctx, long output) |
257 | { |
258 | wchar_t **p = (wchar_t **)ctx; |
259 | *(*p)++ = output; |
260 | } |
261 | |
262 | void utf8_read_test(int line, char *input, int inlen, ...) |
263 | { |
264 | va_list ap; |
265 | wchar_t *p, str[512]; |
266 | int i; |
267 | charset_state state; |
268 | unsigned long l; |
269 | |
270 | state.s0 = 0; |
271 | p = str; |
272 | |
273 | for (i = 0; i < inlen; i++) |
274 | read_utf8(NULL, input[i] & 0xFF, &state, utf8_emit, &p); |
275 | |
276 | va_start(ap, inlen); |
277 | l = 0; |
278 | for (i = 0; i < p - str; i++) { |
279 | l = va_arg(ap, long int); |
280 | if (l == -1) { |
281 | printf("%d: correct string shorter than output\n", line); |
282 | total_errs++; |
283 | break; |
284 | } |
285 | if (l != str[i]) { |
286 | printf("%d: char %d came out as %08x, should be %08x\n", |
287 | line, i, str[i], l); |
288 | total_errs++; |
289 | } |
290 | } |
291 | if (l != -1) { |
292 | l = va_arg(ap, long int); |
293 | if (l != -1) { |
294 | printf("%d: correct string longer than output\n", line); |
295 | total_errs++; |
296 | } |
297 | } |
298 | va_end(ap); |
299 | } |
300 | |
301 | void utf8_write_test(int line, const long *input, int inlen, ...) |
302 | { |
303 | va_list ap; |
304 | wchar_t *p, str[512]; |
305 | int i; |
306 | charset_state state; |
307 | unsigned long l; |
308 | |
309 | state.s0 = 0; |
310 | p = str; |
311 | |
7804475c |
312 | for (i = 0; i < inlen; i++) { |
313 | if (!write_utf8(NULL, input[i], &state, utf8_emit, &p)) |
314 | utf8_emit(&p, ERROR); |
315 | } |
c6d25d8d |
316 | |
317 | va_start(ap, inlen); |
318 | l = 0; |
319 | for (i = 0; i < p - str; i++) { |
320 | l = va_arg(ap, long int); |
321 | if (l == -1) { |
322 | printf("%d: correct string shorter than output\n", line); |
323 | total_errs++; |
324 | break; |
325 | } |
326 | if (l != str[i]) { |
327 | printf("%d: char %d came out as %08x, should be %08x\n", |
328 | line, i, str[i], l); |
329 | total_errs++; |
330 | } |
331 | } |
332 | if (l != -1) { |
333 | l = va_arg(ap, long int); |
334 | if (l != -1) { |
335 | printf("%d: correct string longer than output\n", line); |
336 | total_errs++; |
337 | } |
338 | } |
339 | va_end(ap); |
340 | } |
341 | |
342 | /* Macro to concoct the first three parameters of utf8_read_test. */ |
343 | #define TESTSTR(x) __LINE__, x, lenof(x) |
344 | |
345 | int main(void) |
346 | { |
347 | printf("read tests beginning\n"); |
348 | utf8_read_test(TESTSTR("\xCE\xBA\xE1\xBD\xB9\xCF\x83\xCE\xBC\xCE\xB5"), |
349 | 0x000003BA, /* GREEK SMALL LETTER KAPPA */ |
350 | 0x00001F79, /* GREEK SMALL LETTER OMICRON WITH OXIA */ |
351 | 0x000003C3, /* GREEK SMALL LETTER SIGMA */ |
352 | 0x000003BC, /* GREEK SMALL LETTER MU */ |
353 | 0x000003B5, /* GREEK SMALL LETTER EPSILON */ |
354 | 0, -1); |
355 | utf8_read_test(TESTSTR("\x00"), |
356 | 0x00000000, /* <control> */ |
357 | 0, -1); |
358 | utf8_read_test(TESTSTR("\xC2\x80"), |
359 | 0x00000080, /* <control> */ |
360 | 0, -1); |
361 | utf8_read_test(TESTSTR("\xE0\xA0\x80"), |
362 | 0x00000800, /* <no name available> */ |
363 | 0, -1); |
364 | utf8_read_test(TESTSTR("\xF0\x90\x80\x80"), |
365 | 0x00010000, /* <no name available> */ |
366 | 0, -1); |
367 | utf8_read_test(TESTSTR("\xF8\x88\x80\x80\x80"), |
368 | 0x00200000, /* <no name available> */ |
369 | 0, -1); |
370 | utf8_read_test(TESTSTR("\xFC\x84\x80\x80\x80\x80"), |
371 | 0x04000000, /* <no name available> */ |
372 | 0, -1); |
373 | utf8_read_test(TESTSTR("\x7F"), |
374 | 0x0000007F, /* <control> */ |
375 | 0, -1); |
376 | utf8_read_test(TESTSTR("\xDF\xBF"), |
377 | 0x000007FF, /* <no name available> */ |
378 | 0, -1); |
379 | utf8_read_test(TESTSTR("\xEF\xBF\xBD"), |
380 | 0x0000FFFD, /* REPLACEMENT CHARACTER */ |
381 | 0, -1); |
382 | utf8_read_test(TESTSTR("\xEF\xBF\xBF"), |
383 | ERROR, /* <no name available> (invalid char) */ |
384 | 0, -1); |
385 | utf8_read_test(TESTSTR("\xF7\xBF\xBF\xBF"), |
386 | 0x001FFFFF, /* <no name available> */ |
387 | 0, -1); |
388 | utf8_read_test(TESTSTR("\xFB\xBF\xBF\xBF\xBF"), |
389 | 0x03FFFFFF, /* <no name available> */ |
390 | 0, -1); |
391 | utf8_read_test(TESTSTR("\xFD\xBF\xBF\xBF\xBF\xBF"), |
392 | 0x7FFFFFFF, /* <no name available> */ |
393 | 0, -1); |
394 | utf8_read_test(TESTSTR("\xED\x9F\xBF"), |
395 | 0x0000D7FF, /* <no name available> */ |
396 | 0, -1); |
397 | utf8_read_test(TESTSTR("\xEE\x80\x80"), |
398 | 0x0000E000, /* <Private Use, First> */ |
399 | 0, -1); |
400 | utf8_read_test(TESTSTR("\xEF\xBF\xBD"), |
401 | 0x0000FFFD, /* REPLACEMENT CHARACTER */ |
402 | 0, -1); |
403 | utf8_read_test(TESTSTR("\xF4\x8F\xBF\xBF"), |
404 | 0x0010FFFF, /* <no name available> */ |
405 | 0, -1); |
406 | utf8_read_test(TESTSTR("\xF4\x90\x80\x80"), |
407 | 0x00110000, /* <no name available> */ |
408 | 0, -1); |
409 | utf8_read_test(TESTSTR("\x80"), |
410 | ERROR, /* (unexpected continuation byte) */ |
411 | 0, -1); |
412 | utf8_read_test(TESTSTR("\xBF"), |
413 | ERROR, /* (unexpected continuation byte) */ |
414 | 0, -1); |
415 | utf8_read_test(TESTSTR("\x80\xBF"), |
416 | ERROR, /* (unexpected continuation byte) */ |
417 | ERROR, /* (unexpected continuation byte) */ |
418 | 0, -1); |
419 | utf8_read_test(TESTSTR("\x80\xBF\x80"), |
420 | ERROR, /* (unexpected continuation byte) */ |
421 | ERROR, /* (unexpected continuation byte) */ |
422 | ERROR, /* (unexpected continuation byte) */ |
423 | 0, -1); |
424 | utf8_read_test(TESTSTR("\x80\xBF\x80\xBF"), |
425 | ERROR, /* (unexpected continuation byte) */ |
426 | ERROR, /* (unexpected continuation byte) */ |
427 | ERROR, /* (unexpected continuation byte) */ |
428 | ERROR, /* (unexpected continuation byte) */ |
429 | 0, -1); |
430 | utf8_read_test(TESTSTR("\x80\xBF\x80\xBF\x80"), |
431 | ERROR, /* (unexpected continuation byte) */ |
432 | ERROR, /* (unexpected continuation byte) */ |
433 | ERROR, /* (unexpected continuation byte) */ |
434 | ERROR, /* (unexpected continuation byte) */ |
435 | ERROR, /* (unexpected continuation byte) */ |
436 | 0, -1); |
437 | utf8_read_test(TESTSTR("\x80\xBF\x80\xBF\x80\xBF"), |
438 | ERROR, /* (unexpected continuation byte) */ |
439 | ERROR, /* (unexpected continuation byte) */ |
440 | ERROR, /* (unexpected continuation byte) */ |
441 | ERROR, /* (unexpected continuation byte) */ |
442 | ERROR, /* (unexpected continuation byte) */ |
443 | ERROR, /* (unexpected continuation byte) */ |
444 | 0, -1); |
445 | utf8_read_test(TESTSTR("\x80\xBF\x80\xBF\x80\xBF\x80"), |
446 | ERROR, /* (unexpected continuation byte) */ |
447 | ERROR, /* (unexpected continuation byte) */ |
448 | ERROR, /* (unexpected continuation byte) */ |
449 | ERROR, /* (unexpected continuation byte) */ |
450 | ERROR, /* (unexpected continuation byte) */ |
451 | ERROR, /* (unexpected continuation byte) */ |
452 | ERROR, /* (unexpected continuation byte) */ |
453 | 0, -1); |
454 | utf8_read_test(TESTSTR("\x80\x81\x82\x83\x84\x85\x86\x87\x88\x89\x8A\x8B\x8C\x8D\x8E\x8F\x90\x91\x92\x93\x94\x95\x96\x97\x98\x99\x9A\x9B\x9C\x9D\x9E\x9F\xA0\xA1\xA2\xA3\xA4\xA5\xA6\xA7\xA8\xA9\xAA\xAB\xAC\xAD\xAE\xAF\xB0\xB1\xB2\xB3\xB4\xB5\xB6\xB7\xB8\xB9\xBA\xBB\xBC\xBD\xBE\xBF"), |
455 | ERROR, /* (unexpected continuation byte) */ |
456 | ERROR, /* (unexpected continuation byte) */ |
457 | ERROR, /* (unexpected continuation byte) */ |
458 | ERROR, /* (unexpected continuation byte) */ |
459 | ERROR, /* (unexpected continuation byte) */ |
460 | ERROR, /* (unexpected continuation byte) */ |
461 | ERROR, /* (unexpected continuation byte) */ |
462 | ERROR, /* (unexpected continuation byte) */ |
463 | ERROR, /* (unexpected continuation byte) */ |
464 | ERROR, /* (unexpected continuation byte) */ |
465 | ERROR, /* (unexpected continuation byte) */ |
466 | ERROR, /* (unexpected continuation byte) */ |
467 | ERROR, /* (unexpected continuation byte) */ |
468 | ERROR, /* (unexpected continuation byte) */ |
469 | ERROR, /* (unexpected continuation byte) */ |
470 | ERROR, /* (unexpected continuation byte) */ |
471 | ERROR, /* (unexpected continuation byte) */ |
472 | ERROR, /* (unexpected continuation byte) */ |
473 | ERROR, /* (unexpected continuation byte) */ |
474 | ERROR, /* (unexpected continuation byte) */ |
475 | ERROR, /* (unexpected continuation byte) */ |
476 | ERROR, /* (unexpected continuation byte) */ |
477 | ERROR, /* (unexpected continuation byte) */ |
478 | ERROR, /* (unexpected continuation byte) */ |
479 | ERROR, /* (unexpected continuation byte) */ |
480 | ERROR, /* (unexpected continuation byte) */ |
481 | ERROR, /* (unexpected continuation byte) */ |
482 | ERROR, /* (unexpected continuation byte) */ |
483 | ERROR, /* (unexpected continuation byte) */ |
484 | ERROR, /* (unexpected continuation byte) */ |
485 | ERROR, /* (unexpected continuation byte) */ |
486 | ERROR, /* (unexpected continuation byte) */ |
487 | ERROR, /* (unexpected continuation byte) */ |
488 | ERROR, /* (unexpected continuation byte) */ |
489 | ERROR, /* (unexpected continuation byte) */ |
490 | ERROR, /* (unexpected continuation byte) */ |
491 | ERROR, /* (unexpected continuation byte) */ |
492 | ERROR, /* (unexpected continuation byte) */ |
493 | ERROR, /* (unexpected continuation byte) */ |
494 | ERROR, /* (unexpected continuation byte) */ |
495 | ERROR, /* (unexpected continuation byte) */ |
496 | ERROR, /* (unexpected continuation byte) */ |
497 | ERROR, /* (unexpected continuation byte) */ |
498 | ERROR, /* (unexpected continuation byte) */ |
499 | ERROR, /* (unexpected continuation byte) */ |
500 | ERROR, /* (unexpected continuation byte) */ |
501 | ERROR, /* (unexpected continuation byte) */ |
502 | ERROR, /* (unexpected continuation byte) */ |
503 | ERROR, /* (unexpected continuation byte) */ |
504 | ERROR, /* (unexpected continuation byte) */ |
505 | ERROR, /* (unexpected continuation byte) */ |
506 | ERROR, /* (unexpected continuation byte) */ |
507 | ERROR, /* (unexpected continuation byte) */ |
508 | ERROR, /* (unexpected continuation byte) */ |
509 | ERROR, /* (unexpected continuation byte) */ |
510 | ERROR, /* (unexpected continuation byte) */ |
511 | ERROR, /* (unexpected continuation byte) */ |
512 | ERROR, /* (unexpected continuation byte) */ |
513 | ERROR, /* (unexpected continuation byte) */ |
514 | ERROR, /* (unexpected continuation byte) */ |
515 | ERROR, /* (unexpected continuation byte) */ |
516 | ERROR, /* (unexpected continuation byte) */ |
517 | ERROR, /* (unexpected continuation byte) */ |
518 | ERROR, /* (unexpected continuation byte) */ |
519 | 0, -1); |
520 | utf8_read_test(TESTSTR("\xC0\x20\xC1\x20\xC2\x20\xC3\x20\xC4\x20\xC5\x20\xC6\x20\xC7\x20"), |
521 | ERROR, /* (incomplete sequence) */ |
522 | 0x00000020, /* SPACE */ |
523 | ERROR, /* (incomplete sequence) */ |
524 | 0x00000020, /* SPACE */ |
525 | ERROR, /* (incomplete sequence) */ |
526 | 0x00000020, /* SPACE */ |
527 | ERROR, /* (incomplete sequence) */ |
528 | 0x00000020, /* SPACE */ |
529 | ERROR, /* (incomplete sequence) */ |
530 | 0x00000020, /* SPACE */ |
531 | ERROR, /* (incomplete sequence) */ |
532 | 0x00000020, /* SPACE */ |
533 | ERROR, /* (incomplete sequence) */ |
534 | 0x00000020, /* SPACE */ |
535 | ERROR, /* (incomplete sequence) */ |
536 | 0x00000020, /* SPACE */ |
537 | 0, -1); |
538 | utf8_read_test(TESTSTR("\xE0\x20\xE1\x20\xE2\x20\xE3\x20\xE4\x20\xE5\x20\xE6\x20\xE7\x20\xE8\x20\xE9\x20\xEA\x20\xEB\x20\xEC\x20\xED\x20\xEE\x20\xEF\x20"), |
539 | ERROR, /* (incomplete sequence) */ |
540 | 0x00000020, /* SPACE */ |
541 | ERROR, /* (incomplete sequence) */ |
542 | 0x00000020, /* SPACE */ |
543 | ERROR, /* (incomplete sequence) */ |
544 | 0x00000020, /* SPACE */ |
545 | ERROR, /* (incomplete sequence) */ |
546 | 0x00000020, /* SPACE */ |
547 | ERROR, /* (incomplete sequence) */ |
548 | 0x00000020, /* SPACE */ |
549 | ERROR, /* (incomplete sequence) */ |
550 | 0x00000020, /* SPACE */ |
551 | ERROR, /* (incomplete sequence) */ |
552 | 0x00000020, /* SPACE */ |
553 | ERROR, /* (incomplete sequence) */ |
554 | 0x00000020, /* SPACE */ |
555 | ERROR, /* (incomplete sequence) */ |
556 | 0x00000020, /* SPACE */ |
557 | ERROR, /* (incomplete sequence) */ |
558 | 0x00000020, /* SPACE */ |
559 | ERROR, /* (incomplete sequence) */ |
560 | 0x00000020, /* SPACE */ |
561 | ERROR, /* (incomplete sequence) */ |
562 | 0x00000020, /* SPACE */ |
563 | ERROR, /* (incomplete sequence) */ |
564 | 0x00000020, /* SPACE */ |
565 | ERROR, /* (incomplete sequence) */ |
566 | 0x00000020, /* SPACE */ |
567 | ERROR, /* (incomplete sequence) */ |
568 | 0x00000020, /* SPACE */ |
569 | ERROR, /* (incomplete sequence) */ |
570 | 0x00000020, /* SPACE */ |
571 | 0, -1); |
572 | utf8_read_test(TESTSTR("\xF0\x20\xF1\x20\xF2\x20\xF3\x20\xF4\x20\xF5\x20\xF6\x20\xF7\x20"), |
573 | ERROR, /* (incomplete sequence) */ |
574 | 0x00000020, /* SPACE */ |
575 | ERROR, /* (incomplete sequence) */ |
576 | 0x00000020, /* SPACE */ |
577 | ERROR, /* (incomplete sequence) */ |
578 | 0x00000020, /* SPACE */ |
579 | ERROR, /* (incomplete sequence) */ |
580 | 0x00000020, /* SPACE */ |
581 | ERROR, /* (incomplete sequence) */ |
582 | 0x00000020, /* SPACE */ |
583 | ERROR, /* (incomplete sequence) */ |
584 | 0x00000020, /* SPACE */ |
585 | ERROR, /* (incomplete sequence) */ |
586 | 0x00000020, /* SPACE */ |
587 | ERROR, /* (incomplete sequence) */ |
588 | 0x00000020, /* SPACE */ |
589 | 0, -1); |
590 | utf8_read_test(TESTSTR("\xF8\x20\xF9\x20\xFA\x20\xFB\x20"), |
591 | ERROR, /* (incomplete sequence) */ |
592 | 0x00000020, /* SPACE */ |
593 | ERROR, /* (incomplete sequence) */ |
594 | 0x00000020, /* SPACE */ |
595 | ERROR, /* (incomplete sequence) */ |
596 | 0x00000020, /* SPACE */ |
597 | ERROR, /* (incomplete sequence) */ |
598 | 0x00000020, /* SPACE */ |
599 | 0, -1); |
600 | utf8_read_test(TESTSTR("\xFC\x20\xFD\x20"), |
601 | ERROR, /* (incomplete sequence) */ |
602 | 0x00000020, /* SPACE */ |
603 | ERROR, /* (incomplete sequence) */ |
604 | 0x00000020, /* SPACE */ |
605 | 0, -1); |
606 | utf8_read_test(TESTSTR("\xC0"), |
607 | ERROR, /* (incomplete sequence) */ |
608 | 0, -1); |
609 | utf8_read_test(TESTSTR("\xE0\x80"), |
610 | ERROR, /* (incomplete sequence) */ |
611 | 0, -1); |
612 | utf8_read_test(TESTSTR("\xF0\x80\x80"), |
613 | ERROR, /* (incomplete sequence) */ |
614 | 0, -1); |
615 | utf8_read_test(TESTSTR("\xF8\x80\x80\x80"), |
616 | ERROR, /* (incomplete sequence) */ |
617 | 0, -1); |
618 | utf8_read_test(TESTSTR("\xFC\x80\x80\x80\x80"), |
619 | ERROR, /* (incomplete sequence) */ |
620 | 0, -1); |
621 | utf8_read_test(TESTSTR("\xDF"), |
622 | ERROR, /* (incomplete sequence) */ |
623 | 0, -1); |
624 | utf8_read_test(TESTSTR("\xEF\xBF"), |
625 | ERROR, /* (incomplete sequence) */ |
626 | 0, -1); |
627 | utf8_read_test(TESTSTR("\xF7\xBF\xBF"), |
628 | ERROR, /* (incomplete sequence) */ |
629 | 0, -1); |
630 | utf8_read_test(TESTSTR("\xFB\xBF\xBF\xBF"), |
631 | ERROR, /* (incomplete sequence) */ |
632 | 0, -1); |
633 | utf8_read_test(TESTSTR("\xFD\xBF\xBF\xBF\xBF"), |
634 | ERROR, /* (incomplete sequence) */ |
635 | 0, -1); |
636 | utf8_read_test(TESTSTR("\xC0\xE0\x80\xF0\x80\x80\xF8\x80\x80\x80\xFC\x80\x80\x80\x80\xDF\xEF\xBF\xF7\xBF\xBF\xFB\xBF\xBF\xBF\xFD\xBF\xBF\xBF\xBF"), |
637 | ERROR, /* (incomplete sequence) */ |
638 | ERROR, /* (incomplete sequence) */ |
639 | ERROR, /* (incomplete sequence) */ |
640 | ERROR, /* (incomplete sequence) */ |
641 | ERROR, /* (incomplete sequence) */ |
642 | ERROR, /* (incomplete sequence) */ |
643 | ERROR, /* (incomplete sequence) */ |
644 | ERROR, /* (incomplete sequence) */ |
645 | ERROR, /* (incomplete sequence) */ |
646 | ERROR, /* (incomplete sequence) */ |
647 | 0, -1); |
648 | utf8_read_test(TESTSTR("\xFE"), |
649 | ERROR, /* (invalid UTF-8 byte) */ |
650 | 0, -1); |
651 | utf8_read_test(TESTSTR("\xFF"), |
652 | ERROR, /* (invalid UTF-8 byte) */ |
653 | 0, -1); |
654 | utf8_read_test(TESTSTR("\xFE\xFE\xFF\xFF"), |
655 | ERROR, /* (invalid UTF-8 byte) */ |
656 | ERROR, /* (invalid UTF-8 byte) */ |
657 | ERROR, /* (invalid UTF-8 byte) */ |
658 | ERROR, /* (invalid UTF-8 byte) */ |
659 | 0, -1); |
660 | utf8_read_test(TESTSTR("\xC0\xAF"), |
661 | ERROR, /* SOLIDUS (overlong form of 2F) */ |
662 | 0, -1); |
663 | utf8_read_test(TESTSTR("\xE0\x80\xAF"), |
664 | ERROR, /* SOLIDUS (overlong form of 2F) */ |
665 | 0, -1); |
666 | utf8_read_test(TESTSTR("\xF0\x80\x80\xAF"), |
667 | ERROR, /* SOLIDUS (overlong form of 2F) */ |
668 | 0, -1); |
669 | utf8_read_test(TESTSTR("\xF8\x80\x80\x80\xAF"), |
670 | ERROR, /* SOLIDUS (overlong form of 2F) */ |
671 | 0, -1); |
672 | utf8_read_test(TESTSTR("\xFC\x80\x80\x80\x80\xAF"), |
673 | ERROR, /* SOLIDUS (overlong form of 2F) */ |
674 | 0, -1); |
675 | utf8_read_test(TESTSTR("\xC1\xBF"), |
676 | ERROR, /* <control> (overlong form of 7F) */ |
677 | 0, -1); |
678 | utf8_read_test(TESTSTR("\xE0\x9F\xBF"), |
679 | ERROR, /* <no name available> (overlong form of DF BF) */ |
680 | 0, -1); |
681 | utf8_read_test(TESTSTR("\xF0\x8F\xBF\xBF"), |
682 | ERROR, /* <no name available> (overlong form of EF BF BF) (invalid char) */ |
683 | 0, -1); |
684 | utf8_read_test(TESTSTR("\xF8\x87\xBF\xBF\xBF"), |
685 | ERROR, /* <no name available> (overlong form of F7 BF BF BF) */ |
686 | 0, -1); |
687 | utf8_read_test(TESTSTR("\xFC\x83\xBF\xBF\xBF\xBF"), |
688 | ERROR, /* <no name available> (overlong form of FB BF BF BF BF) */ |
689 | 0, -1); |
690 | utf8_read_test(TESTSTR("\xC0\x80"), |
691 | ERROR, /* <control> (overlong form of 00) */ |
692 | 0, -1); |
693 | utf8_read_test(TESTSTR("\xE0\x80\x80"), |
694 | ERROR, /* <control> (overlong form of 00) */ |
695 | 0, -1); |
696 | utf8_read_test(TESTSTR("\xF0\x80\x80\x80"), |
697 | ERROR, /* <control> (overlong form of 00) */ |
698 | 0, -1); |
699 | utf8_read_test(TESTSTR("\xF8\x80\x80\x80\x80"), |
700 | ERROR, /* <control> (overlong form of 00) */ |
701 | 0, -1); |
702 | utf8_read_test(TESTSTR("\xFC\x80\x80\x80\x80\x80"), |
703 | ERROR, /* <control> (overlong form of 00) */ |
704 | 0, -1); |
705 | utf8_read_test(TESTSTR("\xED\xA0\x80"), |
706 | ERROR, /* <Non Private Use High Surrogate, First> (surrogate) */ |
707 | 0, -1); |
708 | utf8_read_test(TESTSTR("\xED\xAD\xBF"), |
709 | ERROR, /* <Non Private Use High Surrogate, Last> (surrogate) */ |
710 | 0, -1); |
711 | utf8_read_test(TESTSTR("\xED\xAE\x80"), |
712 | ERROR, /* <Private Use High Surrogate, First> (surrogate) */ |
713 | 0, -1); |
714 | utf8_read_test(TESTSTR("\xED\xAF\xBF"), |
715 | ERROR, /* <Private Use High Surrogate, Last> (surrogate) */ |
716 | 0, -1); |
717 | utf8_read_test(TESTSTR("\xED\xB0\x80"), |
718 | ERROR, /* <Low Surrogate, First> (surrogate) */ |
719 | 0, -1); |
720 | utf8_read_test(TESTSTR("\xED\xBE\x80"), |
721 | ERROR, /* <no name available> (surrogate) */ |
722 | 0, -1); |
723 | utf8_read_test(TESTSTR("\xED\xBF\xBF"), |
724 | ERROR, /* <Low Surrogate, Last> (surrogate) */ |
725 | 0, -1); |
726 | utf8_read_test(TESTSTR("\xED\xA0\x80\xED\xB0\x80"), |
727 | ERROR, /* <Non Private Use High Surrogate, First> (surrogate) */ |
728 | ERROR, /* <Low Surrogate, First> (surrogate) */ |
729 | 0, -1); |
730 | utf8_read_test(TESTSTR("\xED\xA0\x80\xED\xBF\xBF"), |
731 | ERROR, /* <Non Private Use High Surrogate, First> (surrogate) */ |
732 | ERROR, /* <Low Surrogate, Last> (surrogate) */ |
733 | 0, -1); |
734 | utf8_read_test(TESTSTR("\xED\xAD\xBF\xED\xB0\x80"), |
735 | ERROR, /* <Non Private Use High Surrogate, Last> (surrogate) */ |
736 | ERROR, /* <Low Surrogate, First> (surrogate) */ |
737 | 0, -1); |
738 | utf8_read_test(TESTSTR("\xED\xAD\xBF\xED\xBF\xBF"), |
739 | ERROR, /* <Non Private Use High Surrogate, Last> (surrogate) */ |
740 | ERROR, /* <Low Surrogate, Last> (surrogate) */ |
741 | 0, -1); |
742 | utf8_read_test(TESTSTR("\xED\xAE\x80\xED\xB0\x80"), |
743 | ERROR, /* <Private Use High Surrogate, First> (surrogate) */ |
744 | ERROR, /* <Low Surrogate, First> (surrogate) */ |
745 | 0, -1); |
746 | utf8_read_test(TESTSTR("\xED\xAE\x80\xED\xBF\xBF"), |
747 | ERROR, /* <Private Use High Surrogate, First> (surrogate) */ |
748 | ERROR, /* <Low Surrogate, Last> (surrogate) */ |
749 | 0, -1); |
750 | utf8_read_test(TESTSTR("\xED\xAF\xBF\xED\xB0\x80"), |
751 | ERROR, /* <Private Use High Surrogate, Last> (surrogate) */ |
752 | ERROR, /* <Low Surrogate, First> (surrogate) */ |
753 | 0, -1); |
754 | utf8_read_test(TESTSTR("\xED\xAF\xBF\xED\xBF\xBF"), |
755 | ERROR, /* <Private Use High Surrogate, Last> (surrogate) */ |
756 | ERROR, /* <Low Surrogate, Last> (surrogate) */ |
757 | 0, -1); |
758 | utf8_read_test(TESTSTR("\xEF\xBF\xBE"), |
759 | ERROR, /* <no name available> (invalid char) */ |
760 | 0, -1); |
761 | utf8_read_test(TESTSTR("\xEF\xBF\xBF"), |
762 | ERROR, /* <no name available> (invalid char) */ |
763 | 0, -1); |
764 | printf("read tests completed\n"); |
765 | printf("write tests beginning\n"); |
766 | { |
767 | const static long str[] = |
768 | {0x03BAL, 0x1F79L, 0x03C3L, 0x03BCL, 0x03B5L, 0}; |
769 | utf8_write_test(TESTSTR(str), |
770 | 0xCE, 0xBA, |
771 | 0xE1, 0xBD, 0xB9, |
772 | 0xCF, 0x83, |
773 | 0xCE, 0xBC, |
774 | 0xCE, 0xB5, |
775 | 0, -1); |
776 | } |
777 | { |
778 | const static long str[] = {0x0000L, 0}; |
779 | utf8_write_test(TESTSTR(str), |
780 | 0x00, |
781 | 0, -1); |
782 | } |
783 | { |
784 | const static long str[] = {0x0080L, 0}; |
785 | utf8_write_test(TESTSTR(str), |
786 | 0xC2, 0x80, |
787 | 0, -1); |
788 | } |
789 | { |
790 | const static long str[] = {0x0800L, 0}; |
791 | utf8_write_test(TESTSTR(str), |
792 | 0xE0, 0xA0, 0x80, |
793 | 0, -1); |
794 | } |
795 | { |
796 | const static long str[] = {0x00010000L, 0}; |
797 | utf8_write_test(TESTSTR(str), |
798 | 0xF0, 0x90, 0x80, 0x80, |
799 | 0, -1); |
800 | } |
801 | { |
802 | const static long str[] = {0x00200000L, 0}; |
803 | utf8_write_test(TESTSTR(str), |
804 | 0xF8, 0x88, 0x80, 0x80, 0x80, |
805 | 0, -1); |
806 | } |
807 | { |
808 | const static long str[] = {0x04000000L, 0}; |
809 | utf8_write_test(TESTSTR(str), |
810 | 0xFC, 0x84, 0x80, 0x80, 0x80, 0x80, |
811 | 0, -1); |
812 | } |
813 | { |
814 | const static long str[] = {0x007FL, 0}; |
815 | utf8_write_test(TESTSTR(str), |
816 | 0x7F, |
817 | 0, -1); |
818 | } |
819 | { |
820 | const static long str[] = {0x07FFL, 0}; |
821 | utf8_write_test(TESTSTR(str), |
822 | 0xDF, 0xBF, |
823 | 0, -1); |
824 | } |
825 | { |
826 | const static long str[] = {0xFFFDL, 0}; |
827 | utf8_write_test(TESTSTR(str), |
828 | 0xEF, 0xBF, 0xBD, |
829 | 0, -1); |
830 | } |
831 | { |
832 | const static long str[] = {0xFFFFL, 0}; |
833 | utf8_write_test(TESTSTR(str), |
834 | ERROR, |
835 | 0, -1); |
836 | } |
837 | { |
838 | const static long str[] = {0x001FFFFFL, 0}; |
839 | utf8_write_test(TESTSTR(str), |
840 | 0xF7, 0xBF, 0xBF, 0xBF, |
841 | 0, -1); |
842 | } |
843 | { |
844 | const static long str[] = {0x03FFFFFFL, 0}; |
845 | utf8_write_test(TESTSTR(str), |
846 | 0xFB, 0xBF, 0xBF, 0xBF, 0xBF, |
847 | 0, -1); |
848 | } |
849 | { |
850 | const static long str[] = {0x7FFFFFFFL, 0}; |
851 | utf8_write_test(TESTSTR(str), |
852 | 0xFD, 0xBF, 0xBF, 0xBF, 0xBF, 0xBF, |
853 | 0, -1); |
854 | } |
855 | { |
856 | const static long str[] = {0xD7FFL, 0}; |
857 | utf8_write_test(TESTSTR(str), |
858 | 0xED, 0x9F, 0xBF, |
859 | 0, -1); |
860 | } |
861 | { |
862 | const static long str[] = {0xD800L, 0}; |
863 | utf8_write_test(TESTSTR(str), |
864 | ERROR, |
865 | 0, -1); |
866 | } |
867 | { |
868 | const static long str[] = {0xD800L, 0xDC00L, 0}; |
869 | utf8_write_test(TESTSTR(str), |
870 | ERROR, |
871 | ERROR, |
872 | 0, -1); |
873 | } |
874 | { |
875 | const static long str[] = {0xDFFFL, 0}; |
876 | utf8_write_test(TESTSTR(str), |
877 | ERROR, |
878 | 0, -1); |
879 | } |
880 | { |
881 | const static long str[] = {0xE000L, 0}; |
882 | utf8_write_test(TESTSTR(str), |
883 | 0xEE, 0x80, 0x80, |
884 | 0, -1); |
885 | } |
886 | printf("write tests completed\n"); |
887 | |
888 | printf("total: %d errors\n", total_errs); |
889 | return (total_errs != 0); |
890 | } |
891 | #endif /* TESTMODE */ |
892 | |
893 | const charset_spec charset_CS_UTF8 = { |
894 | CS_UTF8, read_utf8, write_utf8, NULL |
895 | }; |
896 | |
897 | #else /* ENUM_CHARSETS */ |
898 | |
899 | ENUM_CHARSET(CS_UTF8) |
900 | |
901 | #endif /* ENUM_CHARSETS */ |