2 * utf8.c - routines to handle UTF-8.
11 * The internal read_utf8 and write_utf8 functions in this module
12 * are not static, because they're also called internally from
17 * UTF-8 has no associated data, so `charset' may be ignored.
20 void read_utf8(charset_spec
const *charset
, long int input_chr
,
22 void (*emit
)(void *ctx
, long int output
), void *emitctx
)
27 * For reading UTF-8, the `state' word contains the character
28 * being accumulated. This is shifted left by six bits each
29 * time a character is added, and there's a single '1' bit
30 * in what would be bit 31 of the final character, which we
31 * use to detect when it's complete.
33 * As required, the state is zero when we are not in the middle
34 * of a multibyte character at all.
36 * For example, when reading E9 8D 8B, starting at state=0:
38 * - after E9, the state is 0x00080009
39 * - after 8D, the state is 0x0200024d
40 * - after 8B, the state conceptually becomes 0x8000934b, at
41 * which point we notice we've got as many characters as we
42 * were expecting, output U+934B, and reset the state to
45 * If we detect an overlong sequence, we shift the marker bit
46 * right one bit. This is safe because an overlong sequence
47 * can't encode a top-bit-set character. Not that we worry
48 * about what overlong sequences are trying to encode, but
49 * it's nice to know that we could if we wanted 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 we need 26 bits in total.
59 if (input_chr
< 0x80) {
61 * Single-byte character. If the state is nonzero before
62 * coming here, output an error for an incomplete sequence.
63 * Then output the character.
69 emit(emitctx
, input_chr
);
70 } else if (input_chr
== 0xFE || input_chr
== 0xFF) {
72 * FE and FF bytes should _never_ occur in UTF-8. They are
73 * automatic errors; if the state was nonzero to start
74 * with, output a further error for an incomplete sequence.
81 } else if (input_chr
>= 0x80 && input_chr
< 0xC0) {
83 * Continuation byte. Output an error for an unexpected
84 * continuation byte, if the state is zero.
89 unsigned long charval
;
92 * Otherwise, accumulate more of the character value.
95 charval
= (charval
<< 6) | (input_chr
& 0x3F);
98 * Detect overlong encodings. We're looking for too many
99 * leading zeroes given our position in the character. If
100 * we find an overlong encoding, clear the current marker
101 * bit and set the bit below it. Overlong two-byte
102 * encodings are a special case, and are detected when we
103 * read their inital byte.
105 if ((charval
& 0xffffffe0L
) == 0x02000000L
)
106 charval
^= 0x03000000L
;
107 else if ((charval
& 0xfffffff0L
) == 0x00080000L
)
108 charval
^= 0x000c0000L
;
109 else if ((charval
& 0xfffffff8L
) == 0x00002000L
)
110 charval
^= 0x00003000L
;
111 else if ((charval
& 0xfffffffcL
) == 0x00000080L
)
112 charval
^= 0x000000c0L
;
115 * Check the byte counts; if we have not reached the
116 * end of the character, update the state and return.
118 if (!(charval
& 0xc0000000L
)) {
124 * Clear the marker bit, or set it if it's clear,
125 * indicating an overlong sequence.
127 charval
^= 0x80000000L
;
130 * Now we know we've reached the end of the character.
131 * `charval' is the Unicode value. We should check for
132 * various invalid things, and then either output
133 * charval or an error. In all cases we reset the state
138 if (charval
& 0x80000000L
) {
139 /* We got an overlong sequence. */
140 emit(emitctx
, ERROR
);
141 } else if (charval
>= 0xD800 && charval
< 0xE000) {
143 * Surrogates (0xD800-0xDFFF) may never be encoded
144 * in UTF-8. A surrogate pair in Unicode should
145 * have been encoded as a single UTF-8 character
146 * occupying more than three bytes.
148 emit(emitctx
, ERROR
);
149 } else if (charval
== 0xFFFE || charval
== 0xFFFF) {
151 * U+FFFE and U+FFFF are invalid Unicode characters
152 * and may never be encoded in UTF-8. (This is one
153 * reason why U+FFFF is our way of signalling an
154 * error to our `emit' function :-)
156 emit(emitctx
, ERROR
);
159 * Oh, all right. We'll let this one off.
161 emit(emitctx
, charval
);
167 * Lead byte. First output an error for an incomplete
168 * sequence, if the state is nonzero.
171 emit(emitctx
, ERROR
);
174 * Now deal with the lead byte: work out the number of
175 * bytes we expect to see in this character, and extract
176 * the initial bits of it too.
178 if (input_chr
>= 0xC0 && input_chr
< 0xC2) {
179 /* beginning of an overlong two-byte sequence */
180 state
->s0
= 0x01000000L
| (input_chr
& 0x1F);
181 } else if (input_chr
>= 0xC2 && input_chr
< 0xE0) {
182 state
->s0
= 0x02000000L
| (input_chr
& 0x1F);
183 } else if (input_chr
>= 0xE0 && input_chr
< 0xF0) {
184 state
->s0
= 0x00080000L
| (input_chr
& 0x0F);
185 } else if (input_chr
>= 0xF0 && input_chr
< 0xF8) {
186 state
->s0
= 0x00002000L
| (input_chr
& 0x07);
187 } else if (input_chr
>= 0xF8 && input_chr
< 0xFC) {
188 state
->s0
= 0x00000080L
| (input_chr
& 0x03);
189 } else if (input_chr
>= 0xFC && input_chr
< 0xFE) {
190 state
->s0
= 0x00000002L
| (input_chr
& 0x01);
196 * UTF-8 is a stateless multi-byte encoding (in the sense that just
197 * after any character has been completed, the state is always the
198 * same); hence when writing it, there is no need to use the
202 int write_utf8(charset_spec
const *charset
, long int input_chr
,
203 charset_state
*state
,
204 void (*emit
)(void *ctx
, long int output
),
211 return TRUE
; /* stateless; no cleanup required */
214 * Refuse to output any illegal code points.
216 if (input_chr
== 0xFFFE || input_chr
== 0xFFFF ||
217 (input_chr
>= 0xD800 && input_chr
< 0xE000)) {
219 } else if (input_chr
< 0x80) { /* one-byte character */
220 emit(emitctx
, input_chr
);
222 } else if (input_chr
< 0x800) { /* two-byte character */
223 emit(emitctx
, 0xC0 | (0x1F & (input_chr
>> 6)));
224 emit(emitctx
, 0x80 | (0x3F & (input_chr
)));
226 } else if (input_chr
< 0x10000) { /* three-byte character */
227 emit(emitctx
, 0xE0 | (0x0F & (input_chr
>> 12)));
228 emit(emitctx
, 0x80 | (0x3F & (input_chr
>> 6)));
229 emit(emitctx
, 0x80 | (0x3F & (input_chr
)));
231 } else if (input_chr
< 0x200000) { /* four-byte character */
232 emit(emitctx
, 0xF0 | (0x07 & (input_chr
>> 18)));
233 emit(emitctx
, 0x80 | (0x3F & (input_chr
>> 12)));
234 emit(emitctx
, 0x80 | (0x3F & (input_chr
>> 6)));
235 emit(emitctx
, 0x80 | (0x3F & (input_chr
)));
237 } else if (input_chr
< 0x4000000) {/* five-byte character */
238 emit(emitctx
, 0xF8 | (0x03 & (input_chr
>> 24)));
239 emit(emitctx
, 0x80 | (0x3F & (input_chr
>> 18)));
240 emit(emitctx
, 0x80 | (0x3F & (input_chr
>> 12)));
241 emit(emitctx
, 0x80 | (0x3F & (input_chr
>> 6)));
242 emit(emitctx
, 0x80 | (0x3F & (input_chr
)));
244 } else { /* six-byte character */
245 emit(emitctx
, 0xFC | (0x01 & (input_chr
>> 30)));
246 emit(emitctx
, 0x80 | (0x3F & (input_chr
>> 24)));
247 emit(emitctx
, 0x80 | (0x3F & (input_chr
>> 18)));
248 emit(emitctx
, 0x80 | (0x3F & (input_chr
>> 12)));
249 emit(emitctx
, 0x80 | (0x3F & (input_chr
>> 6)));
250 emit(emitctx
, 0x80 | (0x3F & (input_chr
)));
262 void utf8_emit(void *ctx
, long output
)
264 wchar_t **p
= (wchar_t **)ctx
;
268 void utf8_read_test(int line
, char *input
, int inlen
, ...)
271 wchar_t *p
, str
[512];
279 for (i
= 0; i
< inlen
; i
++)
280 read_utf8(NULL
, input
[i
] & 0xFF, &state
, utf8_emit
, &p
);
284 for (i
= 0; i
< p
- str
; i
++) {
285 l
= va_arg(ap
, long int);
287 printf("%d: correct string shorter than output\n", line
);
292 printf("%d: char %d came out as %08x, should be %08x\n",
298 l
= va_arg(ap
, long int);
300 printf("%d: correct string longer than output\n", line
);
307 void utf8_write_test(int line
, const long *input
, int inlen
, ...)
310 wchar_t *p
, str
[512];
318 for (i
= 0; i
< inlen
; i
++) {
319 if (!write_utf8(NULL
, input
[i
], &state
, utf8_emit
, &p
))
320 utf8_emit(&p
, ERROR
);
325 for (i
= 0; i
< p
- str
; i
++) {
326 l
= va_arg(ap
, long int);
328 printf("%d: correct string shorter than output\n", line
);
333 printf("%d: char %d came out as %08x, should be %08x\n",
339 l
= va_arg(ap
, long int);
341 printf("%d: correct string longer than output\n", line
);
348 /* Macro to concoct the first three parameters of utf8_read_test. */
349 #define TESTSTR(x) __LINE__, x, lenof(x)
353 printf("read tests beginning\n");
354 utf8_read_test(TESTSTR("\xCE\xBA\xE1\xBD\xB9\xCF\x83\xCE\xBC\xCE\xB5"),
355 0x000003BA, /* GREEK SMALL LETTER KAPPA */
356 0x00001F79, /* GREEK SMALL LETTER OMICRON WITH OXIA */
357 0x000003C3, /* GREEK SMALL LETTER SIGMA */
358 0x000003BC, /* GREEK SMALL LETTER MU */
359 0x000003B5, /* GREEK SMALL LETTER EPSILON */
361 utf8_read_test(TESTSTR("\x00"),
362 0x00000000, /* <control> */
364 utf8_read_test(TESTSTR("\xC2\x80"),
365 0x00000080, /* <control> */
367 utf8_read_test(TESTSTR("\xE0\xA0\x80"),
368 0x00000800, /* <no name available> */
370 utf8_read_test(TESTSTR("\xF0\x90\x80\x80"),
371 0x00010000, /* <no name available> */
373 utf8_read_test(TESTSTR("\xF8\x88\x80\x80\x80"),
374 0x00200000, /* <no name available> */
376 utf8_read_test(TESTSTR("\xFC\x84\x80\x80\x80\x80"),
377 0x04000000, /* <no name available> */
379 utf8_read_test(TESTSTR("\x7F"),
380 0x0000007F, /* <control> */
382 utf8_read_test(TESTSTR("\xDF\xBF"),
383 0x000007FF, /* <no name available> */
385 utf8_read_test(TESTSTR("\xEF\xBF\xBD"),
386 0x0000FFFD, /* REPLACEMENT CHARACTER */
388 utf8_read_test(TESTSTR("\xEF\xBF\xBF"),
389 ERROR
, /* <no name available> (invalid char) */
391 utf8_read_test(TESTSTR("\xF7\xBF\xBF\xBF"),
392 0x001FFFFF, /* <no name available> */
394 utf8_read_test(TESTSTR("\xFB\xBF\xBF\xBF\xBF"),
395 0x03FFFFFF, /* <no name available> */
397 utf8_read_test(TESTSTR("\xFD\xBF\xBF\xBF\xBF\xBF"),
398 0x7FFFFFFF, /* <no name available> */
400 utf8_read_test(TESTSTR("\xED\x9F\xBF"),
401 0x0000D7FF, /* <no name available> */
403 utf8_read_test(TESTSTR("\xEE\x80\x80"),
404 0x0000E000, /* <Private Use, First> */
406 utf8_read_test(TESTSTR("\xEF\xBF\xBD"),
407 0x0000FFFD, /* REPLACEMENT CHARACTER */
409 utf8_read_test(TESTSTR("\xF4\x8F\xBF\xBF"),
410 0x0010FFFF, /* <no name available> */
412 utf8_read_test(TESTSTR("\xF4\x90\x80\x80"),
413 0x00110000, /* <no name available> */
415 utf8_read_test(TESTSTR("\x80"),
416 ERROR
, /* (unexpected continuation byte) */
418 utf8_read_test(TESTSTR("\xBF"),
419 ERROR
, /* (unexpected continuation byte) */
421 utf8_read_test(TESTSTR("\x80\xBF"),
422 ERROR
, /* (unexpected continuation byte) */
423 ERROR
, /* (unexpected continuation byte) */
425 utf8_read_test(TESTSTR("\x80\xBF\x80"),
426 ERROR
, /* (unexpected continuation byte) */
427 ERROR
, /* (unexpected continuation byte) */
428 ERROR
, /* (unexpected continuation byte) */
430 utf8_read_test(TESTSTR("\x80\xBF\x80\xBF"),
431 ERROR
, /* (unexpected continuation byte) */
432 ERROR
, /* (unexpected continuation byte) */
433 ERROR
, /* (unexpected continuation byte) */
434 ERROR
, /* (unexpected continuation byte) */
436 utf8_read_test(TESTSTR("\x80\xBF\x80\xBF\x80"),
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) */
443 utf8_read_test(TESTSTR("\x80\xBF\x80\xBF\x80\xBF"),
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) */
451 utf8_read_test(TESTSTR("\x80\xBF\x80\xBF\x80\xBF\x80"),
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) */
460 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"),
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 ERROR
, /* (unexpected continuation byte) */
520 ERROR
, /* (unexpected continuation byte) */
521 ERROR
, /* (unexpected continuation byte) */
522 ERROR
, /* (unexpected continuation byte) */
523 ERROR
, /* (unexpected continuation byte) */
524 ERROR
, /* (unexpected continuation byte) */
526 utf8_read_test(TESTSTR("\xC0\x20\xC1\x20\xC2\x20\xC3\x20\xC4\x20\xC5\x20\xC6\x20\xC7\x20"),
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 ERROR
, /* (incomplete sequence) */
538 0x00000020, /* SPACE */
539 ERROR
, /* (incomplete sequence) */
540 0x00000020, /* SPACE */
541 ERROR
, /* (incomplete sequence) */
542 0x00000020, /* SPACE */
544 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"),
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 ERROR
, /* (incomplete sequence) */
572 0x00000020, /* SPACE */
573 ERROR
, /* (incomplete sequence) */
574 0x00000020, /* SPACE */
575 ERROR
, /* (incomplete sequence) */
576 0x00000020, /* SPACE */
578 utf8_read_test(TESTSTR("\xF0\x20\xF1\x20\xF2\x20\xF3\x20\xF4\x20\xF5\x20\xF6\x20\xF7\x20"),
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 ERROR
, /* (incomplete sequence) */
590 0x00000020, /* SPACE */
591 ERROR
, /* (incomplete sequence) */
592 0x00000020, /* SPACE */
593 ERROR
, /* (incomplete sequence) */
594 0x00000020, /* SPACE */
596 utf8_read_test(TESTSTR("\xF8\x20\xF9\x20\xFA\x20\xFB\x20"),
597 ERROR
, /* (incomplete sequence) */
598 0x00000020, /* SPACE */
599 ERROR
, /* (incomplete sequence) */
600 0x00000020, /* SPACE */
601 ERROR
, /* (incomplete sequence) */
602 0x00000020, /* SPACE */
603 ERROR
, /* (incomplete sequence) */
604 0x00000020, /* SPACE */
606 utf8_read_test(TESTSTR("\xFC\x20\xFD\x20"),
607 ERROR
, /* (incomplete sequence) */
608 0x00000020, /* SPACE */
609 ERROR
, /* (incomplete sequence) */
610 0x00000020, /* SPACE */
612 utf8_read_test(TESTSTR("\xC0"),
613 ERROR
, /* (incomplete sequence) */
615 utf8_read_test(TESTSTR("\xE0\x80"),
616 ERROR
, /* (incomplete sequence) */
618 utf8_read_test(TESTSTR("\xF0\x80\x80"),
619 ERROR
, /* (incomplete sequence) */
621 utf8_read_test(TESTSTR("\xF8\x80\x80\x80"),
622 ERROR
, /* (incomplete sequence) */
624 utf8_read_test(TESTSTR("\xFC\x80\x80\x80\x80"),
625 ERROR
, /* (incomplete sequence) */
627 utf8_read_test(TESTSTR("\xDF"),
628 ERROR
, /* (incomplete sequence) */
630 utf8_read_test(TESTSTR("\xEF\xBF"),
631 ERROR
, /* (incomplete sequence) */
633 utf8_read_test(TESTSTR("\xF7\xBF\xBF"),
634 ERROR
, /* (incomplete sequence) */
636 utf8_read_test(TESTSTR("\xFB\xBF\xBF\xBF"),
637 ERROR
, /* (incomplete sequence) */
639 utf8_read_test(TESTSTR("\xFD\xBF\xBF\xBF\xBF"),
640 ERROR
, /* (incomplete sequence) */
642 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"),
643 ERROR
, /* (incomplete sequence) */
644 ERROR
, /* (incomplete sequence) */
645 ERROR
, /* (incomplete sequence) */
646 ERROR
, /* (incomplete sequence) */
647 ERROR
, /* (incomplete sequence) */
648 ERROR
, /* (incomplete sequence) */
649 ERROR
, /* (incomplete sequence) */
650 ERROR
, /* (incomplete sequence) */
651 ERROR
, /* (incomplete sequence) */
652 ERROR
, /* (incomplete sequence) */
654 utf8_read_test(TESTSTR("\xFE"),
655 ERROR
, /* (invalid UTF-8 byte) */
657 utf8_read_test(TESTSTR("\xFF"),
658 ERROR
, /* (invalid UTF-8 byte) */
660 utf8_read_test(TESTSTR("\xFE\xFE\xFF\xFF"),
661 ERROR
, /* (invalid UTF-8 byte) */
662 ERROR
, /* (invalid UTF-8 byte) */
663 ERROR
, /* (invalid UTF-8 byte) */
664 ERROR
, /* (invalid UTF-8 byte) */
666 utf8_read_test(TESTSTR("\xC0\xAF"),
667 ERROR
, /* SOLIDUS (overlong form of 2F) */
669 utf8_read_test(TESTSTR("\xE0\x80\xAF"),
670 ERROR
, /* SOLIDUS (overlong form of 2F) */
672 utf8_read_test(TESTSTR("\xF0\x80\x80\xAF"),
673 ERROR
, /* SOLIDUS (overlong form of 2F) */
675 utf8_read_test(TESTSTR("\xF8\x80\x80\x80\xAF"),
676 ERROR
, /* SOLIDUS (overlong form of 2F) */
678 utf8_read_test(TESTSTR("\xFC\x80\x80\x80\x80\xAF"),
679 ERROR
, /* SOLIDUS (overlong form of 2F) */
681 utf8_read_test(TESTSTR("\xC1\xBF"),
682 ERROR
, /* <control> (overlong form of 7F) */
684 utf8_read_test(TESTSTR("\xE0\x9F\xBF"),
685 ERROR
, /* <no name available> (overlong form of DF BF) */
687 utf8_read_test(TESTSTR("\xF0\x8F\xBF\xBF"),
688 ERROR
, /* <no name available> (overlong form of EF BF BF) (invalid char) */
690 utf8_read_test(TESTSTR("\xF8\x87\xBF\xBF\xBF"),
691 ERROR
, /* <no name available> (overlong form of F7 BF BF BF) */
693 utf8_read_test(TESTSTR("\xFC\x83\xBF\xBF\xBF\xBF"),
694 ERROR
, /* <no name available> (overlong form of FB BF BF BF BF) */
696 utf8_read_test(TESTSTR("\xC0\x80"),
697 ERROR
, /* <control> (overlong form of 00) */
699 utf8_read_test(TESTSTR("\xE0\x80\x80"),
700 ERROR
, /* <control> (overlong form of 00) */
702 utf8_read_test(TESTSTR("\xF0\x80\x80\x80"),
703 ERROR
, /* <control> (overlong form of 00) */
705 utf8_read_test(TESTSTR("\xF8\x80\x80\x80\x80"),
706 ERROR
, /* <control> (overlong form of 00) */
708 utf8_read_test(TESTSTR("\xFC\x80\x80\x80\x80\x80"),
709 ERROR
, /* <control> (overlong form of 00) */
711 utf8_read_test(TESTSTR("\xED\xA0\x80"),
712 ERROR
, /* <Non Private Use High Surrogate, First> (surrogate) */
714 utf8_read_test(TESTSTR("\xED\xAD\xBF"),
715 ERROR
, /* <Non Private Use High Surrogate, Last> (surrogate) */
717 utf8_read_test(TESTSTR("\xED\xAE\x80"),
718 ERROR
, /* <Private Use High Surrogate, First> (surrogate) */
720 utf8_read_test(TESTSTR("\xED\xAF\xBF"),
721 ERROR
, /* <Private Use High Surrogate, Last> (surrogate) */
723 utf8_read_test(TESTSTR("\xED\xB0\x80"),
724 ERROR
, /* <Low Surrogate, First> (surrogate) */
726 utf8_read_test(TESTSTR("\xED\xBE\x80"),
727 ERROR
, /* <no name available> (surrogate) */
729 utf8_read_test(TESTSTR("\xED\xBF\xBF"),
730 ERROR
, /* <Low Surrogate, Last> (surrogate) */
732 utf8_read_test(TESTSTR("\xED\xA0\x80\xED\xB0\x80"),
733 ERROR
, /* <Non Private Use High Surrogate, First> (surrogate) */
734 ERROR
, /* <Low Surrogate, First> (surrogate) */
736 utf8_read_test(TESTSTR("\xED\xA0\x80\xED\xBF\xBF"),
737 ERROR
, /* <Non Private Use High Surrogate, First> (surrogate) */
738 ERROR
, /* <Low Surrogate, Last> (surrogate) */
740 utf8_read_test(TESTSTR("\xED\xAD\xBF\xED\xB0\x80"),
741 ERROR
, /* <Non Private Use High Surrogate, Last> (surrogate) */
742 ERROR
, /* <Low Surrogate, First> (surrogate) */
744 utf8_read_test(TESTSTR("\xED\xAD\xBF\xED\xBF\xBF"),
745 ERROR
, /* <Non Private Use High Surrogate, Last> (surrogate) */
746 ERROR
, /* <Low Surrogate, Last> (surrogate) */
748 utf8_read_test(TESTSTR("\xED\xAE\x80\xED\xB0\x80"),
749 ERROR
, /* <Private Use High Surrogate, First> (surrogate) */
750 ERROR
, /* <Low Surrogate, First> (surrogate) */
752 utf8_read_test(TESTSTR("\xED\xAE\x80\xED\xBF\xBF"),
753 ERROR
, /* <Private Use High Surrogate, First> (surrogate) */
754 ERROR
, /* <Low Surrogate, Last> (surrogate) */
756 utf8_read_test(TESTSTR("\xED\xAF\xBF\xED\xB0\x80"),
757 ERROR
, /* <Private Use High Surrogate, Last> (surrogate) */
758 ERROR
, /* <Low Surrogate, First> (surrogate) */
760 utf8_read_test(TESTSTR("\xED\xAF\xBF\xED\xBF\xBF"),
761 ERROR
, /* <Private Use High Surrogate, Last> (surrogate) */
762 ERROR
, /* <Low Surrogate, Last> (surrogate) */
764 utf8_read_test(TESTSTR("\xEF\xBF\xBE"),
765 ERROR
, /* <no name available> (invalid char) */
767 utf8_read_test(TESTSTR("\xEF\xBF\xBF"),
768 ERROR
, /* <no name available> (invalid char) */
770 printf("read tests completed\n");
771 printf("write tests beginning\n");
773 const static long str
[] =
774 {0x03BAL
, 0x1F79L
, 0x03C3L
, 0x03BCL
, 0x03B5L
, 0};
775 utf8_write_test(TESTSTR(str
),
784 const static long str
[] = {0x0000L
, 0};
785 utf8_write_test(TESTSTR(str
),
790 const static long str
[] = {0x0080L
, 0};
791 utf8_write_test(TESTSTR(str
),
796 const static long str
[] = {0x0800L
, 0};
797 utf8_write_test(TESTSTR(str
),
802 const static long str
[] = {0x00010000L
, 0};
803 utf8_write_test(TESTSTR(str
),
804 0xF0, 0x90, 0x80, 0x80,
808 const static long str
[] = {0x00200000L
, 0};
809 utf8_write_test(TESTSTR(str
),
810 0xF8, 0x88, 0x80, 0x80, 0x80,
814 const static long str
[] = {0x04000000L
, 0};
815 utf8_write_test(TESTSTR(str
),
816 0xFC, 0x84, 0x80, 0x80, 0x80, 0x80,
820 const static long str
[] = {0x007FL
, 0};
821 utf8_write_test(TESTSTR(str
),
826 const static long str
[] = {0x07FFL
, 0};
827 utf8_write_test(TESTSTR(str
),
832 const static long str
[] = {0xFFFDL
, 0};
833 utf8_write_test(TESTSTR(str
),
838 const static long str
[] = {0xFFFFL
, 0};
839 utf8_write_test(TESTSTR(str
),
844 const static long str
[] = {0x001FFFFFL
, 0};
845 utf8_write_test(TESTSTR(str
),
846 0xF7, 0xBF, 0xBF, 0xBF,
850 const static long str
[] = {0x03FFFFFFL
, 0};
851 utf8_write_test(TESTSTR(str
),
852 0xFB, 0xBF, 0xBF, 0xBF, 0xBF,
856 const static long str
[] = {0x7FFFFFFFL
, 0};
857 utf8_write_test(TESTSTR(str
),
858 0xFD, 0xBF, 0xBF, 0xBF, 0xBF, 0xBF,
862 const static long str
[] = {0xD7FFL
, 0};
863 utf8_write_test(TESTSTR(str
),
868 const static long str
[] = {0xD800L
, 0};
869 utf8_write_test(TESTSTR(str
),
874 const static long str
[] = {0xD800L
, 0xDC00L
, 0};
875 utf8_write_test(TESTSTR(str
),
881 const static long str
[] = {0xDFFFL
, 0};
882 utf8_write_test(TESTSTR(str
),
887 const static long str
[] = {0xE000L
, 0};
888 utf8_write_test(TESTSTR(str
),
892 printf("write tests completed\n");
894 printf("total: %d errors\n", total_errs
);
895 return (total_errs
!= 0);
897 #endif /* TESTMODE */
899 const charset_spec charset_CS_UTF8
= {
900 CS_UTF8
, read_utf8
, write_utf8
, NULL
903 #else /* ENUM_CHARSETS */
905 ENUM_CHARSET(CS_UTF8
)
907 #endif /* ENUM_CHARSETS */