2 * utf8.c - routines to handle UTF-8.
10 void read_utf8(charset_spec
const *, long int, charset_state
*,
11 void (*)(void *, long int), void *);
12 void write_utf8(charset_spec
const *, long int,
13 charset_state
*, void (*)(void *, long int), void *);
16 * UTF-8 has no associated data, so `charset' may be ignored.
19 void read_utf8(charset_spec
const *charset
, long int input_chr
,
21 void (*emit
)(void *ctx
, long int output
), void *emitctx
)
26 * For reading UTF-8, the `state' word contains:
28 * - in bits 29-31, the number of bytes expected to be in the
29 * current multibyte character (which we can tell instantly
30 * from the first byte, of course).
32 * - in bits 26-28, the number of bytes _seen so far_ in the
33 * current multibyte character.
35 * - in the remainder of the word, the current value of the
36 * character, which is shifted upwards by 6 bits to
37 * accommodate each new byte.
39 * As required, the state is zero when we are not in the middle
40 * of a multibyte character at all.
42 * For example, when reading E9 8D 8B, starting at state=0:
44 * - after E9, the state is 0x64000009
45 * - after 8D, the state is 0x6800024d
46 * - after 8B, the state conceptually becomes 0x6c00934b, at
47 * which point we notice we've got as many characters as we
48 * were expecting, output U+934B, and reset the state to
51 * Note that the maximum number of bits we might need to store
52 * in the character value field is 25 (U+7FFFFFFF contains 31
53 * bits, but we will never actually store its full value
54 * because when we receive the last 6 bits in the final
55 * continuation byte we will output it and revert the state to
56 * zero). Hence the character value field never collides with
60 if (input_chr
< 0x80) {
62 * Single-byte character. If the state is nonzero before
63 * coming here, output an error for an incomplete sequence.
64 * Then output the character.
70 emit(emitctx
, input_chr
);
71 } else if (input_chr
== 0xFE || input_chr
== 0xFF) {
73 * FE and FF bytes should _never_ occur in UTF-8. They are
74 * automatic errors; if the state was nonzero to start
75 * with, output a further error for an incomplete sequence.
82 } else if (input_chr
>= 0x80 && input_chr
< 0xC0) {
84 * Continuation byte. Output an error for an unexpected
85 * continuation byte, if the state is zero.
90 unsigned long charval
;
91 unsigned long topstuff
;
95 * Otherwise, accumulate more of the character value.
97 charval
= state
->s0
& 0x03ffffffL
;
98 charval
= (charval
<< 6) | (input_chr
& 0x3F);
101 * Check the byte counts; if we have not reached the
102 * end of the character, update the state and return.
104 topstuff
= state
->s0
& 0xfc000000L
;
105 topstuff
+= 0x04000000L
; /* add one to the byte count */
106 if (((topstuff
<< 3) ^ topstuff
) & 0xe0000000L
) {
107 state
->s0
= topstuff
| charval
;
112 * Now we know we've reached the end of the character.
113 * `charval' is the Unicode value. We should check for
114 * various invalid things, and then either output
115 * charval or an error. In all cases we reset the state
118 bytes
= topstuff
>> 29;
121 if (charval
>= 0xD800 && charval
< 0xE000) {
123 * Surrogates (0xD800-0xDFFF) may never be encoded
124 * in UTF-8. A surrogate pair in Unicode should
125 * have been encoded as a single UTF-8 character
126 * occupying more than three bytes.
128 emit(emitctx
, ERROR
);
129 } else if (charval
== 0xFFFE || charval
== 0xFFFF) {
131 * U+FFFE and U+FFFF are invalid Unicode characters
132 * and may never be encoded in UTF-8. (This is one
133 * reason why U+FFFF is our way of signalling an
134 * error to our `emit' function :-)
136 emit(emitctx
, ERROR
);
137 } else if ((charval
<= 0x7FL
/* && bytes > 1 */) ||
138 (charval
<= 0x7FFL
&& bytes
> 2) ||
139 (charval
<= 0xFFFFL
&& bytes
> 3) ||
140 (charval
<= 0x1FFFFFL
&& bytes
> 4) ||
141 (charval
<= 0x3FFFFFFL
&& bytes
> 5)) {
143 * Overlong sequences are not to be tolerated,
144 * under any circumstances.
146 emit(emitctx
, ERROR
);
149 * Oh, all right. We'll let this one off.
151 emit(emitctx
, charval
);
157 * Lead byte. First output an error for an incomplete
158 * sequence, if the state is nonzero.
161 emit(emitctx
, ERROR
);
164 * Now deal with the lead byte: work out the number of
165 * bytes we expect to see in this character, and extract
166 * the initial bits of it too.
168 if (input_chr
>= 0xC0 && input_chr
< 0xE0) {
169 state
->s0
= 0x44000000L
| (input_chr
& 0x1F);
170 } else if (input_chr
>= 0xE0 && input_chr
< 0xF0) {
171 state
->s0
= 0x64000000L
| (input_chr
& 0x0F);
172 } else if (input_chr
>= 0xF0 && input_chr
< 0xF8) {
173 state
->s0
= 0x84000000L
| (input_chr
& 0x07);
174 } else if (input_chr
>= 0xF8 && input_chr
< 0xFC) {
175 state
->s0
= 0xa4000000L
| (input_chr
& 0x03);
176 } else if (input_chr
>= 0xFC && input_chr
< 0xFE) {
177 state
->s0
= 0xc4000000L
| (input_chr
& 0x01);
183 * UTF-8 is a stateless multi-byte encoding (in the sense that just
184 * after any character has been completed, the state is always the
185 * same); hence when writing it, there is no need to use the
189 void write_utf8(charset_spec
const *charset
, long int input_chr
,
190 charset_state
*state
,
191 void (*emit
)(void *ctx
, long int output
), void *emitctx
)
197 * Refuse to output any illegal code points.
199 if (input_chr
== 0xFFFE || input_chr
== 0xFFFF ||
200 (input_chr
>= 0xD800 && input_chr
< 0xE000)) {
201 emit(emitctx
, ERROR
);
202 } else if (input_chr
< 0x80) { /* one-byte character */
203 emit(emitctx
, input_chr
);
204 } else if (input_chr
< 0x800) { /* two-byte character */
205 emit(emitctx
, 0xC0 | (0x1F & (input_chr
>> 6)));
206 emit(emitctx
, 0x80 | (0x3F & (input_chr
)));
207 } else if (input_chr
< 0x10000) { /* three-byte character */
208 emit(emitctx
, 0xE0 | (0x0F & (input_chr
>> 12)));
209 emit(emitctx
, 0x80 | (0x3F & (input_chr
>> 6)));
210 emit(emitctx
, 0x80 | (0x3F & (input_chr
)));
211 } else if (input_chr
< 0x200000) { /* four-byte character */
212 emit(emitctx
, 0xF0 | (0x07 & (input_chr
>> 18)));
213 emit(emitctx
, 0x80 | (0x3F & (input_chr
>> 12)));
214 emit(emitctx
, 0x80 | (0x3F & (input_chr
>> 6)));
215 emit(emitctx
, 0x80 | (0x3F & (input_chr
)));
216 } else if (input_chr
< 0x4000000) {/* five-byte character */
217 emit(emitctx
, 0xF8 | (0x03 & (input_chr
>> 24)));
218 emit(emitctx
, 0x80 | (0x3F & (input_chr
>> 18)));
219 emit(emitctx
, 0x80 | (0x3F & (input_chr
>> 12)));
220 emit(emitctx
, 0x80 | (0x3F & (input_chr
>> 6)));
221 emit(emitctx
, 0x80 | (0x3F & (input_chr
)));
222 } else { /* six-byte character */
223 emit(emitctx
, 0xFC | (0x01 & (input_chr
>> 30)));
224 emit(emitctx
, 0x80 | (0x3F & (input_chr
>> 24)));
225 emit(emitctx
, 0x80 | (0x3F & (input_chr
>> 18)));
226 emit(emitctx
, 0x80 | (0x3F & (input_chr
>> 12)));
227 emit(emitctx
, 0x80 | (0x3F & (input_chr
>> 6)));
228 emit(emitctx
, 0x80 | (0x3F & (input_chr
)));
239 void utf8_emit(void *ctx
, long output
)
241 wchar_t **p
= (wchar_t **)ctx
;
245 void utf8_read_test(int line
, char *input
, int inlen
, ...)
248 wchar_t *p
, str
[512];
256 for (i
= 0; i
< inlen
; i
++)
257 read_utf8(NULL
, input
[i
] & 0xFF, &state
, utf8_emit
, &p
);
261 for (i
= 0; i
< p
- str
; i
++) {
262 l
= va_arg(ap
, long int);
264 printf("%d: correct string shorter than output\n", line
);
269 printf("%d: char %d came out as %08x, should be %08x\n",
275 l
= va_arg(ap
, long int);
277 printf("%d: correct string longer than output\n", line
);
284 void utf8_write_test(int line
, const long *input
, int inlen
, ...)
287 wchar_t *p
, str
[512];
295 for (i
= 0; i
< inlen
; i
++)
296 write_utf8(NULL
, input
[i
], &state
, utf8_emit
, &p
);
300 for (i
= 0; i
< p
- str
; i
++) {
301 l
= va_arg(ap
, long int);
303 printf("%d: correct string shorter than output\n", line
);
308 printf("%d: char %d came out as %08x, should be %08x\n",
314 l
= va_arg(ap
, long int);
316 printf("%d: correct string longer than output\n", line
);
323 /* Macro to concoct the first three parameters of utf8_read_test. */
324 #define TESTSTR(x) __LINE__, x, lenof(x)
328 printf("read tests beginning\n");
329 utf8_read_test(TESTSTR("\xCE\xBA\xE1\xBD\xB9\xCF\x83\xCE\xBC\xCE\xB5"),
330 0x000003BA, /* GREEK SMALL LETTER KAPPA */
331 0x00001F79, /* GREEK SMALL LETTER OMICRON WITH OXIA */
332 0x000003C3, /* GREEK SMALL LETTER SIGMA */
333 0x000003BC, /* GREEK SMALL LETTER MU */
334 0x000003B5, /* GREEK SMALL LETTER EPSILON */
336 utf8_read_test(TESTSTR("\x00"),
337 0x00000000, /* <control> */
339 utf8_read_test(TESTSTR("\xC2\x80"),
340 0x00000080, /* <control> */
342 utf8_read_test(TESTSTR("\xE0\xA0\x80"),
343 0x00000800, /* <no name available> */
345 utf8_read_test(TESTSTR("\xF0\x90\x80\x80"),
346 0x00010000, /* <no name available> */
348 utf8_read_test(TESTSTR("\xF8\x88\x80\x80\x80"),
349 0x00200000, /* <no name available> */
351 utf8_read_test(TESTSTR("\xFC\x84\x80\x80\x80\x80"),
352 0x04000000, /* <no name available> */
354 utf8_read_test(TESTSTR("\x7F"),
355 0x0000007F, /* <control> */
357 utf8_read_test(TESTSTR("\xDF\xBF"),
358 0x000007FF, /* <no name available> */
360 utf8_read_test(TESTSTR("\xEF\xBF\xBD"),
361 0x0000FFFD, /* REPLACEMENT CHARACTER */
363 utf8_read_test(TESTSTR("\xEF\xBF\xBF"),
364 ERROR
, /* <no name available> (invalid char) */
366 utf8_read_test(TESTSTR("\xF7\xBF\xBF\xBF"),
367 0x001FFFFF, /* <no name available> */
369 utf8_read_test(TESTSTR("\xFB\xBF\xBF\xBF\xBF"),
370 0x03FFFFFF, /* <no name available> */
372 utf8_read_test(TESTSTR("\xFD\xBF\xBF\xBF\xBF\xBF"),
373 0x7FFFFFFF, /* <no name available> */
375 utf8_read_test(TESTSTR("\xED\x9F\xBF"),
376 0x0000D7FF, /* <no name available> */
378 utf8_read_test(TESTSTR("\xEE\x80\x80"),
379 0x0000E000, /* <Private Use, First> */
381 utf8_read_test(TESTSTR("\xEF\xBF\xBD"),
382 0x0000FFFD, /* REPLACEMENT CHARACTER */
384 utf8_read_test(TESTSTR("\xF4\x8F\xBF\xBF"),
385 0x0010FFFF, /* <no name available> */
387 utf8_read_test(TESTSTR("\xF4\x90\x80\x80"),
388 0x00110000, /* <no name available> */
390 utf8_read_test(TESTSTR("\x80"),
391 ERROR
, /* (unexpected continuation byte) */
393 utf8_read_test(TESTSTR("\xBF"),
394 ERROR
, /* (unexpected continuation byte) */
396 utf8_read_test(TESTSTR("\x80\xBF"),
397 ERROR
, /* (unexpected continuation byte) */
398 ERROR
, /* (unexpected continuation byte) */
400 utf8_read_test(TESTSTR("\x80\xBF\x80"),
401 ERROR
, /* (unexpected continuation byte) */
402 ERROR
, /* (unexpected continuation byte) */
403 ERROR
, /* (unexpected continuation byte) */
405 utf8_read_test(TESTSTR("\x80\xBF\x80\xBF"),
406 ERROR
, /* (unexpected continuation byte) */
407 ERROR
, /* (unexpected continuation byte) */
408 ERROR
, /* (unexpected continuation byte) */
409 ERROR
, /* (unexpected continuation byte) */
411 utf8_read_test(TESTSTR("\x80\xBF\x80\xBF\x80"),
412 ERROR
, /* (unexpected continuation byte) */
413 ERROR
, /* (unexpected continuation byte) */
414 ERROR
, /* (unexpected continuation byte) */
415 ERROR
, /* (unexpected continuation byte) */
416 ERROR
, /* (unexpected continuation byte) */
418 utf8_read_test(TESTSTR("\x80\xBF\x80\xBF\x80\xBF"),
419 ERROR
, /* (unexpected continuation byte) */
420 ERROR
, /* (unexpected continuation byte) */
421 ERROR
, /* (unexpected continuation byte) */
422 ERROR
, /* (unexpected continuation byte) */
423 ERROR
, /* (unexpected continuation byte) */
424 ERROR
, /* (unexpected continuation byte) */
426 utf8_read_test(TESTSTR("\x80\xBF\x80\xBF\x80\xBF\x80"),
427 ERROR
, /* (unexpected continuation byte) */
428 ERROR
, /* (unexpected continuation byte) */
429 ERROR
, /* (unexpected continuation byte) */
430 ERROR
, /* (unexpected continuation byte) */
431 ERROR
, /* (unexpected continuation byte) */
432 ERROR
, /* (unexpected continuation byte) */
433 ERROR
, /* (unexpected continuation byte) */
435 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"),
436 ERROR
, /* (unexpected continuation byte) */
437 ERROR
, /* (unexpected continuation byte) */
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 ERROR
, /* (unexpected continuation byte) */
445 ERROR
, /* (unexpected continuation byte) */
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 ERROR
, /* (unexpected continuation byte) */
454 ERROR
, /* (unexpected continuation byte) */
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) */
501 utf8_read_test(TESTSTR("\xC0\x20\xC1\x20\xC2\x20\xC3\x20\xC4\x20\xC5\x20\xC6\x20\xC7\x20"),
502 ERROR
, /* (incomplete sequence) */
503 0x00000020, /* SPACE */
504 ERROR
, /* (incomplete sequence) */
505 0x00000020, /* SPACE */
506 ERROR
, /* (incomplete sequence) */
507 0x00000020, /* SPACE */
508 ERROR
, /* (incomplete sequence) */
509 0x00000020, /* SPACE */
510 ERROR
, /* (incomplete sequence) */
511 0x00000020, /* SPACE */
512 ERROR
, /* (incomplete sequence) */
513 0x00000020, /* SPACE */
514 ERROR
, /* (incomplete sequence) */
515 0x00000020, /* SPACE */
516 ERROR
, /* (incomplete sequence) */
517 0x00000020, /* SPACE */
519 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"),
520 ERROR
, /* (incomplete sequence) */
521 0x00000020, /* SPACE */
522 ERROR
, /* (incomplete sequence) */
523 0x00000020, /* SPACE */
524 ERROR
, /* (incomplete sequence) */
525 0x00000020, /* SPACE */
526 ERROR
, /* (incomplete sequence) */
527 0x00000020, /* SPACE */
528 ERROR
, /* (incomplete sequence) */
529 0x00000020, /* SPACE */
530 ERROR
, /* (incomplete sequence) */
531 0x00000020, /* SPACE */
532 ERROR
, /* (incomplete sequence) */
533 0x00000020, /* SPACE */
534 ERROR
, /* (incomplete sequence) */
535 0x00000020, /* SPACE */
536 ERROR
, /* (incomplete sequence) */
537 0x00000020, /* SPACE */
538 ERROR
, /* (incomplete sequence) */
539 0x00000020, /* SPACE */
540 ERROR
, /* (incomplete sequence) */
541 0x00000020, /* SPACE */
542 ERROR
, /* (incomplete sequence) */
543 0x00000020, /* SPACE */
544 ERROR
, /* (incomplete sequence) */
545 0x00000020, /* SPACE */
546 ERROR
, /* (incomplete sequence) */
547 0x00000020, /* SPACE */
548 ERROR
, /* (incomplete sequence) */
549 0x00000020, /* SPACE */
550 ERROR
, /* (incomplete sequence) */
551 0x00000020, /* SPACE */
553 utf8_read_test(TESTSTR("\xF0\x20\xF1\x20\xF2\x20\xF3\x20\xF4\x20\xF5\x20\xF6\x20\xF7\x20"),
554 ERROR
, /* (incomplete sequence) */
555 0x00000020, /* SPACE */
556 ERROR
, /* (incomplete sequence) */
557 0x00000020, /* SPACE */
558 ERROR
, /* (incomplete sequence) */
559 0x00000020, /* SPACE */
560 ERROR
, /* (incomplete sequence) */
561 0x00000020, /* SPACE */
562 ERROR
, /* (incomplete sequence) */
563 0x00000020, /* SPACE */
564 ERROR
, /* (incomplete sequence) */
565 0x00000020, /* SPACE */
566 ERROR
, /* (incomplete sequence) */
567 0x00000020, /* SPACE */
568 ERROR
, /* (incomplete sequence) */
569 0x00000020, /* SPACE */
571 utf8_read_test(TESTSTR("\xF8\x20\xF9\x20\xFA\x20\xFB\x20"),
572 ERROR
, /* (incomplete sequence) */
573 0x00000020, /* SPACE */
574 ERROR
, /* (incomplete sequence) */
575 0x00000020, /* SPACE */
576 ERROR
, /* (incomplete sequence) */
577 0x00000020, /* SPACE */
578 ERROR
, /* (incomplete sequence) */
579 0x00000020, /* SPACE */
581 utf8_read_test(TESTSTR("\xFC\x20\xFD\x20"),
582 ERROR
, /* (incomplete sequence) */
583 0x00000020, /* SPACE */
584 ERROR
, /* (incomplete sequence) */
585 0x00000020, /* SPACE */
587 utf8_read_test(TESTSTR("\xC0"),
588 ERROR
, /* (incomplete sequence) */
590 utf8_read_test(TESTSTR("\xE0\x80"),
591 ERROR
, /* (incomplete sequence) */
593 utf8_read_test(TESTSTR("\xF0\x80\x80"),
594 ERROR
, /* (incomplete sequence) */
596 utf8_read_test(TESTSTR("\xF8\x80\x80\x80"),
597 ERROR
, /* (incomplete sequence) */
599 utf8_read_test(TESTSTR("\xFC\x80\x80\x80\x80"),
600 ERROR
, /* (incomplete sequence) */
602 utf8_read_test(TESTSTR("\xDF"),
603 ERROR
, /* (incomplete sequence) */
605 utf8_read_test(TESTSTR("\xEF\xBF"),
606 ERROR
, /* (incomplete sequence) */
608 utf8_read_test(TESTSTR("\xF7\xBF\xBF"),
609 ERROR
, /* (incomplete sequence) */
611 utf8_read_test(TESTSTR("\xFB\xBF\xBF\xBF"),
612 ERROR
, /* (incomplete sequence) */
614 utf8_read_test(TESTSTR("\xFD\xBF\xBF\xBF\xBF"),
615 ERROR
, /* (incomplete sequence) */
617 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"),
618 ERROR
, /* (incomplete sequence) */
619 ERROR
, /* (incomplete sequence) */
620 ERROR
, /* (incomplete sequence) */
621 ERROR
, /* (incomplete sequence) */
622 ERROR
, /* (incomplete sequence) */
623 ERROR
, /* (incomplete sequence) */
624 ERROR
, /* (incomplete sequence) */
625 ERROR
, /* (incomplete sequence) */
626 ERROR
, /* (incomplete sequence) */
627 ERROR
, /* (incomplete sequence) */
629 utf8_read_test(TESTSTR("\xFE"),
630 ERROR
, /* (invalid UTF-8 byte) */
632 utf8_read_test(TESTSTR("\xFF"),
633 ERROR
, /* (invalid UTF-8 byte) */
635 utf8_read_test(TESTSTR("\xFE\xFE\xFF\xFF"),
636 ERROR
, /* (invalid UTF-8 byte) */
637 ERROR
, /* (invalid UTF-8 byte) */
638 ERROR
, /* (invalid UTF-8 byte) */
639 ERROR
, /* (invalid UTF-8 byte) */
641 utf8_read_test(TESTSTR("\xC0\xAF"),
642 ERROR
, /* SOLIDUS (overlong form of 2F) */
644 utf8_read_test(TESTSTR("\xE0\x80\xAF"),
645 ERROR
, /* SOLIDUS (overlong form of 2F) */
647 utf8_read_test(TESTSTR("\xF0\x80\x80\xAF"),
648 ERROR
, /* SOLIDUS (overlong form of 2F) */
650 utf8_read_test(TESTSTR("\xF8\x80\x80\x80\xAF"),
651 ERROR
, /* SOLIDUS (overlong form of 2F) */
653 utf8_read_test(TESTSTR("\xFC\x80\x80\x80\x80\xAF"),
654 ERROR
, /* SOLIDUS (overlong form of 2F) */
656 utf8_read_test(TESTSTR("\xC1\xBF"),
657 ERROR
, /* <control> (overlong form of 7F) */
659 utf8_read_test(TESTSTR("\xE0\x9F\xBF"),
660 ERROR
, /* <no name available> (overlong form of DF BF) */
662 utf8_read_test(TESTSTR("\xF0\x8F\xBF\xBF"),
663 ERROR
, /* <no name available> (overlong form of EF BF BF) (invalid char) */
665 utf8_read_test(TESTSTR("\xF8\x87\xBF\xBF\xBF"),
666 ERROR
, /* <no name available> (overlong form of F7 BF BF BF) */
668 utf8_read_test(TESTSTR("\xFC\x83\xBF\xBF\xBF\xBF"),
669 ERROR
, /* <no name available> (overlong form of FB BF BF BF BF) */
671 utf8_read_test(TESTSTR("\xC0\x80"),
672 ERROR
, /* <control> (overlong form of 00) */
674 utf8_read_test(TESTSTR("\xE0\x80\x80"),
675 ERROR
, /* <control> (overlong form of 00) */
677 utf8_read_test(TESTSTR("\xF0\x80\x80\x80"),
678 ERROR
, /* <control> (overlong form of 00) */
680 utf8_read_test(TESTSTR("\xF8\x80\x80\x80\x80"),
681 ERROR
, /* <control> (overlong form of 00) */
683 utf8_read_test(TESTSTR("\xFC\x80\x80\x80\x80\x80"),
684 ERROR
, /* <control> (overlong form of 00) */
686 utf8_read_test(TESTSTR("\xED\xA0\x80"),
687 ERROR
, /* <Non Private Use High Surrogate, First> (surrogate) */
689 utf8_read_test(TESTSTR("\xED\xAD\xBF"),
690 ERROR
, /* <Non Private Use High Surrogate, Last> (surrogate) */
692 utf8_read_test(TESTSTR("\xED\xAE\x80"),
693 ERROR
, /* <Private Use High Surrogate, First> (surrogate) */
695 utf8_read_test(TESTSTR("\xED\xAF\xBF"),
696 ERROR
, /* <Private Use High Surrogate, Last> (surrogate) */
698 utf8_read_test(TESTSTR("\xED\xB0\x80"),
699 ERROR
, /* <Low Surrogate, First> (surrogate) */
701 utf8_read_test(TESTSTR("\xED\xBE\x80"),
702 ERROR
, /* <no name available> (surrogate) */
704 utf8_read_test(TESTSTR("\xED\xBF\xBF"),
705 ERROR
, /* <Low Surrogate, Last> (surrogate) */
707 utf8_read_test(TESTSTR("\xED\xA0\x80\xED\xB0\x80"),
708 ERROR
, /* <Non Private Use High Surrogate, First> (surrogate) */
709 ERROR
, /* <Low Surrogate, First> (surrogate) */
711 utf8_read_test(TESTSTR("\xED\xA0\x80\xED\xBF\xBF"),
712 ERROR
, /* <Non Private Use High Surrogate, First> (surrogate) */
713 ERROR
, /* <Low Surrogate, Last> (surrogate) */
715 utf8_read_test(TESTSTR("\xED\xAD\xBF\xED\xB0\x80"),
716 ERROR
, /* <Non Private Use High Surrogate, Last> (surrogate) */
717 ERROR
, /* <Low Surrogate, First> (surrogate) */
719 utf8_read_test(TESTSTR("\xED\xAD\xBF\xED\xBF\xBF"),
720 ERROR
, /* <Non Private Use High Surrogate, Last> (surrogate) */
721 ERROR
, /* <Low Surrogate, Last> (surrogate) */
723 utf8_read_test(TESTSTR("\xED\xAE\x80\xED\xB0\x80"),
724 ERROR
, /* <Private Use High Surrogate, First> (surrogate) */
725 ERROR
, /* <Low Surrogate, First> (surrogate) */
727 utf8_read_test(TESTSTR("\xED\xAE\x80\xED\xBF\xBF"),
728 ERROR
, /* <Private Use High Surrogate, First> (surrogate) */
729 ERROR
, /* <Low Surrogate, Last> (surrogate) */
731 utf8_read_test(TESTSTR("\xED\xAF\xBF\xED\xB0\x80"),
732 ERROR
, /* <Private Use High Surrogate, Last> (surrogate) */
733 ERROR
, /* <Low Surrogate, First> (surrogate) */
735 utf8_read_test(TESTSTR("\xED\xAF\xBF\xED\xBF\xBF"),
736 ERROR
, /* <Private Use High Surrogate, Last> (surrogate) */
737 ERROR
, /* <Low Surrogate, Last> (surrogate) */
739 utf8_read_test(TESTSTR("\xEF\xBF\xBE"),
740 ERROR
, /* <no name available> (invalid char) */
742 utf8_read_test(TESTSTR("\xEF\xBF\xBF"),
743 ERROR
, /* <no name available> (invalid char) */
745 printf("read tests completed\n");
746 printf("write tests beginning\n");
748 const static long str
[] =
749 {0x03BAL
, 0x1F79L
, 0x03C3L
, 0x03BCL
, 0x03B5L
, 0};
750 utf8_write_test(TESTSTR(str
),
759 const static long str
[] = {0x0000L
, 0};
760 utf8_write_test(TESTSTR(str
),
765 const static long str
[] = {0x0080L
, 0};
766 utf8_write_test(TESTSTR(str
),
771 const static long str
[] = {0x0800L
, 0};
772 utf8_write_test(TESTSTR(str
),
777 const static long str
[] = {0x00010000L
, 0};
778 utf8_write_test(TESTSTR(str
),
779 0xF0, 0x90, 0x80, 0x80,
783 const static long str
[] = {0x00200000L
, 0};
784 utf8_write_test(TESTSTR(str
),
785 0xF8, 0x88, 0x80, 0x80, 0x80,
789 const static long str
[] = {0x04000000L
, 0};
790 utf8_write_test(TESTSTR(str
),
791 0xFC, 0x84, 0x80, 0x80, 0x80, 0x80,
795 const static long str
[] = {0x007FL
, 0};
796 utf8_write_test(TESTSTR(str
),
801 const static long str
[] = {0x07FFL
, 0};
802 utf8_write_test(TESTSTR(str
),
807 const static long str
[] = {0xFFFDL
, 0};
808 utf8_write_test(TESTSTR(str
),
813 const static long str
[] = {0xFFFFL
, 0};
814 utf8_write_test(TESTSTR(str
),
819 const static long str
[] = {0x001FFFFFL
, 0};
820 utf8_write_test(TESTSTR(str
),
821 0xF7, 0xBF, 0xBF, 0xBF,
825 const static long str
[] = {0x03FFFFFFL
, 0};
826 utf8_write_test(TESTSTR(str
),
827 0xFB, 0xBF, 0xBF, 0xBF, 0xBF,
831 const static long str
[] = {0x7FFFFFFFL
, 0};
832 utf8_write_test(TESTSTR(str
),
833 0xFD, 0xBF, 0xBF, 0xBF, 0xBF, 0xBF,
837 const static long str
[] = {0xD7FFL
, 0};
838 utf8_write_test(TESTSTR(str
),
843 const static long str
[] = {0xD800L
, 0};
844 utf8_write_test(TESTSTR(str
),
849 const static long str
[] = {0xD800L
, 0xDC00L
, 0};
850 utf8_write_test(TESTSTR(str
),
856 const static long str
[] = {0xDFFFL
, 0};
857 utf8_write_test(TESTSTR(str
),
862 const static long str
[] = {0xE000L
, 0};
863 utf8_write_test(TESTSTR(str
),
867 printf("write tests completed\n");
869 printf("total: %d errors\n", total_errs
);
870 return (total_errs
!= 0);
872 #endif /* TESTMODE */
874 const charset_spec charset_CS_UTF8
= {
875 CS_UTF8
, read_utf8
, write_utf8
, NULL
878 #else /* ENUM_CHARSETS */
880 ENUM_CHARSET(CS_UTF8
)
882 #endif /* ENUM_CHARSETS */