2 * utf8.c - routines to handle UTF-8.
11 * UTF-8 has no associated data, so `charset' may be ignored.
14 static void read_utf8(charset_spec
const *charset
, long int input_chr
,
16 void (*emit
)(void *ctx
, long int output
), void *emitctx
)
21 * For reading UTF-8, the `state' word contains:
23 * - in bits 29-31, the number of bytes expected to be in the
24 * current multibyte character (which we can tell instantly
25 * from the first byte, of course).
27 * - in bits 26-28, the number of bytes _seen so far_ in the
28 * current multibyte character.
30 * - in the remainder of the word, the current value of the
31 * character, which is shifted upwards by 6 bits to
32 * accommodate each new byte.
34 * As required, the state is zero when we are not in the middle
35 * of a multibyte character at all.
37 * For example, when reading E9 8D 8B, starting at state=0:
39 * - after E9, the state is 0x64000009
40 * - after 8D, the state is 0x6800024d
41 * - after 8B, the state conceptually becomes 0x6c00934b, at
42 * which point we notice we've got as many characters as we
43 * were expecting, output U+934B, and reset the state to
46 * Note that the maximum number of bits we might need to store
47 * in the character value field is 25 (U+7FFFFFFF contains 31
48 * bits, but we will never actually store its full value
49 * because when we receive the last 6 bits in the final
50 * continuation byte we will output it and revert the state to
51 * zero). Hence the character value field never collides with
55 if (input_chr
< 0x80) {
57 * Single-byte character. If the state is nonzero before
58 * coming here, output an error for an incomplete sequence.
59 * Then output the character.
65 emit(emitctx
, input_chr
);
66 } else if (input_chr
== 0xFE || input_chr
== 0xFF) {
68 * FE and FF bytes should _never_ occur in UTF-8. They are
69 * automatic errors; if the state was nonzero to start
70 * with, output a further error for an incomplete sequence.
77 } else if (input_chr
>= 0x80 && input_chr
< 0xC0) {
79 * Continuation byte. Output an error for an unexpected
80 * continuation byte, if the state is zero.
85 unsigned long charval
;
86 unsigned long topstuff
;
90 * Otherwise, accumulate more of the character value.
92 charval
= state
->s0
& 0x03ffffffL
;
93 charval
= (charval
<< 6) | (input_chr
& 0x3F);
96 * Check the byte counts; if we have not reached the
97 * end of the character, update the state and return.
99 topstuff
= state
->s0
& 0xfc000000L
;
100 topstuff
+= 0x04000000L
; /* add one to the byte count */
101 if (((topstuff
<< 3) ^ topstuff
) & 0xe0000000L
) {
102 state
->s0
= topstuff
| charval
;
107 * Now we know we've reached the end of the character.
108 * `charval' is the Unicode value. We should check for
109 * various invalid things, and then either output
110 * charval or an error. In all cases we reset the state
113 bytes
= topstuff
>> 29;
116 if (charval
>= 0xD800 && charval
< 0xE000) {
118 * Surrogates (0xD800-0xDFFF) may never be encoded
119 * in UTF-8. A surrogate pair in Unicode should
120 * have been encoded as a single UTF-8 character
121 * occupying more than three bytes.
123 emit(emitctx
, ERROR
);
124 } else if (charval
== 0xFFFE || charval
== 0xFFFF) {
126 * U+FFFE and U+FFFF are invalid Unicode characters
127 * and may never be encoded in UTF-8. (This is one
128 * reason why U+FFFF is our way of signalling an
129 * error to our `emit' function :-)
131 emit(emitctx
, ERROR
);
132 } else if ((charval
<= 0x7FL
/* && bytes > 1 */) ||
133 (charval
<= 0x7FFL
&& bytes
> 2) ||
134 (charval
<= 0xFFFFL
&& bytes
> 3) ||
135 (charval
<= 0x1FFFFFL
&& bytes
> 4) ||
136 (charval
<= 0x3FFFFFFL
&& bytes
> 5)) {
138 * Overlong sequences are not to be tolerated,
139 * under any circumstances.
141 emit(emitctx
, ERROR
);
144 * Oh, all right. We'll let this one off.
146 emit(emitctx
, charval
);
152 * Lead byte. First output an error for an incomplete
153 * sequence, if the state is nonzero.
156 emit(emitctx
, ERROR
);
159 * Now deal with the lead byte: work out the number of
160 * bytes we expect to see in this character, and extract
161 * the initial bits of it too.
163 if (input_chr
>= 0xC0 && input_chr
< 0xE0) {
164 state
->s0
= 0x44000000L
| (input_chr
& 0x1F);
165 } else if (input_chr
>= 0xE0 && input_chr
< 0xF0) {
166 state
->s0
= 0x64000000L
| (input_chr
& 0x0F);
167 } else if (input_chr
>= 0xF0 && input_chr
< 0xF8) {
168 state
->s0
= 0x84000000L
| (input_chr
& 0x07);
169 } else if (input_chr
>= 0xF8 && input_chr
< 0xFC) {
170 state
->s0
= 0xa4000000L
| (input_chr
& 0x03);
171 } else if (input_chr
>= 0xFC && input_chr
< 0xFE) {
172 state
->s0
= 0xc4000000L
| (input_chr
& 0x01);
178 * UTF-8 is a stateless multi-byte encoding (in the sense that just
179 * after any character has been completed, the state is always the
180 * same); hence when writing it, there is no need to use the
184 static int write_utf8(charset_spec
const *charset
, long int input_chr
,
185 charset_state
*state
,
186 void (*emit
)(void *ctx
, long int output
),
193 return TRUE
; /* stateless; no cleanup required */
196 * Refuse to output any illegal code points.
198 if (input_chr
== 0xFFFE || input_chr
== 0xFFFF ||
199 (input_chr
>= 0xD800 && input_chr
< 0xE000)) {
201 } else if (input_chr
< 0x80) { /* one-byte character */
202 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
)));
208 } else if (input_chr
< 0x10000) { /* three-byte character */
209 emit(emitctx
, 0xE0 | (0x0F & (input_chr
>> 12)));
210 emit(emitctx
, 0x80 | (0x3F & (input_chr
>> 6)));
211 emit(emitctx
, 0x80 | (0x3F & (input_chr
)));
213 } else if (input_chr
< 0x200000) { /* four-byte character */
214 emit(emitctx
, 0xF0 | (0x07 & (input_chr
>> 18)));
215 emit(emitctx
, 0x80 | (0x3F & (input_chr
>> 12)));
216 emit(emitctx
, 0x80 | (0x3F & (input_chr
>> 6)));
217 emit(emitctx
, 0x80 | (0x3F & (input_chr
)));
219 } else if (input_chr
< 0x4000000) {/* five-byte character */
220 emit(emitctx
, 0xF8 | (0x03 & (input_chr
>> 24)));
221 emit(emitctx
, 0x80 | (0x3F & (input_chr
>> 18)));
222 emit(emitctx
, 0x80 | (0x3F & (input_chr
>> 12)));
223 emit(emitctx
, 0x80 | (0x3F & (input_chr
>> 6)));
224 emit(emitctx
, 0x80 | (0x3F & (input_chr
)));
226 } else { /* six-byte character */
227 emit(emitctx
, 0xFC | (0x01 & (input_chr
>> 30)));
228 emit(emitctx
, 0x80 | (0x3F & (input_chr
>> 24)));
229 emit(emitctx
, 0x80 | (0x3F & (input_chr
>> 18)));
230 emit(emitctx
, 0x80 | (0x3F & (input_chr
>> 12)));
231 emit(emitctx
, 0x80 | (0x3F & (input_chr
>> 6)));
232 emit(emitctx
, 0x80 | (0x3F & (input_chr
)));
244 void utf8_emit(void *ctx
, long output
)
246 wchar_t **p
= (wchar_t **)ctx
;
250 void utf8_read_test(int line
, char *input
, int inlen
, ...)
253 wchar_t *p
, str
[512];
261 for (i
= 0; i
< inlen
; i
++)
262 read_utf8(NULL
, input
[i
] & 0xFF, &state
, utf8_emit
, &p
);
266 for (i
= 0; i
< p
- str
; i
++) {
267 l
= va_arg(ap
, long int);
269 printf("%d: correct string shorter than output\n", line
);
274 printf("%d: char %d came out as %08x, should be %08x\n",
280 l
= va_arg(ap
, long int);
282 printf("%d: correct string longer than output\n", line
);
289 void utf8_write_test(int line
, const long *input
, int inlen
, ...)
292 wchar_t *p
, str
[512];
300 for (i
= 0; i
< inlen
; i
++) {
301 if (!write_utf8(NULL
, input
[i
], &state
, utf8_emit
, &p
))
302 utf8_emit(&p
, ERROR
);
307 for (i
= 0; i
< p
- str
; i
++) {
308 l
= va_arg(ap
, long int);
310 printf("%d: correct string shorter than output\n", line
);
315 printf("%d: char %d came out as %08x, should be %08x\n",
321 l
= va_arg(ap
, long int);
323 printf("%d: correct string longer than output\n", line
);
330 /* Macro to concoct the first three parameters of utf8_read_test. */
331 #define TESTSTR(x) __LINE__, x, lenof(x)
335 printf("read tests beginning\n");
336 utf8_read_test(TESTSTR("\xCE\xBA\xE1\xBD\xB9\xCF\x83\xCE\xBC\xCE\xB5"),
337 0x000003BA, /* GREEK SMALL LETTER KAPPA */
338 0x00001F79, /* GREEK SMALL LETTER OMICRON WITH OXIA */
339 0x000003C3, /* GREEK SMALL LETTER SIGMA */
340 0x000003BC, /* GREEK SMALL LETTER MU */
341 0x000003B5, /* GREEK SMALL LETTER EPSILON */
343 utf8_read_test(TESTSTR("\x00"),
344 0x00000000, /* <control> */
346 utf8_read_test(TESTSTR("\xC2\x80"),
347 0x00000080, /* <control> */
349 utf8_read_test(TESTSTR("\xE0\xA0\x80"),
350 0x00000800, /* <no name available> */
352 utf8_read_test(TESTSTR("\xF0\x90\x80\x80"),
353 0x00010000, /* <no name available> */
355 utf8_read_test(TESTSTR("\xF8\x88\x80\x80\x80"),
356 0x00200000, /* <no name available> */
358 utf8_read_test(TESTSTR("\xFC\x84\x80\x80\x80\x80"),
359 0x04000000, /* <no name available> */
361 utf8_read_test(TESTSTR("\x7F"),
362 0x0000007F, /* <control> */
364 utf8_read_test(TESTSTR("\xDF\xBF"),
365 0x000007FF, /* <no name available> */
367 utf8_read_test(TESTSTR("\xEF\xBF\xBD"),
368 0x0000FFFD, /* REPLACEMENT CHARACTER */
370 utf8_read_test(TESTSTR("\xEF\xBF\xBF"),
371 ERROR
, /* <no name available> (invalid char) */
373 utf8_read_test(TESTSTR("\xF7\xBF\xBF\xBF"),
374 0x001FFFFF, /* <no name available> */
376 utf8_read_test(TESTSTR("\xFB\xBF\xBF\xBF\xBF"),
377 0x03FFFFFF, /* <no name available> */
379 utf8_read_test(TESTSTR("\xFD\xBF\xBF\xBF\xBF\xBF"),
380 0x7FFFFFFF, /* <no name available> */
382 utf8_read_test(TESTSTR("\xED\x9F\xBF"),
383 0x0000D7FF, /* <no name available> */
385 utf8_read_test(TESTSTR("\xEE\x80\x80"),
386 0x0000E000, /* <Private Use, First> */
388 utf8_read_test(TESTSTR("\xEF\xBF\xBD"),
389 0x0000FFFD, /* REPLACEMENT CHARACTER */
391 utf8_read_test(TESTSTR("\xF4\x8F\xBF\xBF"),
392 0x0010FFFF, /* <no name available> */
394 utf8_read_test(TESTSTR("\xF4\x90\x80\x80"),
395 0x00110000, /* <no name available> */
397 utf8_read_test(TESTSTR("\x80"),
398 ERROR
, /* (unexpected continuation byte) */
400 utf8_read_test(TESTSTR("\xBF"),
401 ERROR
, /* (unexpected continuation byte) */
403 utf8_read_test(TESTSTR("\x80\xBF"),
404 ERROR
, /* (unexpected continuation byte) */
405 ERROR
, /* (unexpected continuation byte) */
407 utf8_read_test(TESTSTR("\x80\xBF\x80"),
408 ERROR
, /* (unexpected continuation byte) */
409 ERROR
, /* (unexpected continuation byte) */
410 ERROR
, /* (unexpected continuation byte) */
412 utf8_read_test(TESTSTR("\x80\xBF\x80\xBF"),
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"),
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) */
425 utf8_read_test(TESTSTR("\x80\xBF\x80\xBF\x80\xBF"),
426 ERROR
, /* (unexpected continuation byte) */
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) */
433 utf8_read_test(TESTSTR("\x80\xBF\x80\xBF\x80\xBF\x80"),
434 ERROR
, /* (unexpected continuation byte) */
435 ERROR
, /* (unexpected continuation byte) */
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) */
442 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"),
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) */
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) */
508 utf8_read_test(TESTSTR("\xC0\x20\xC1\x20\xC2\x20\xC3\x20\xC4\x20\xC5\x20\xC6\x20\xC7\x20"),
509 ERROR
, /* (incomplete sequence) */
510 0x00000020, /* SPACE */
511 ERROR
, /* (incomplete sequence) */
512 0x00000020, /* SPACE */
513 ERROR
, /* (incomplete sequence) */
514 0x00000020, /* SPACE */
515 ERROR
, /* (incomplete sequence) */
516 0x00000020, /* SPACE */
517 ERROR
, /* (incomplete sequence) */
518 0x00000020, /* SPACE */
519 ERROR
, /* (incomplete sequence) */
520 0x00000020, /* SPACE */
521 ERROR
, /* (incomplete sequence) */
522 0x00000020, /* SPACE */
523 ERROR
, /* (incomplete sequence) */
524 0x00000020, /* SPACE */
526 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"),
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 */
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 */
560 utf8_read_test(TESTSTR("\xF0\x20\xF1\x20\xF2\x20\xF3\x20\xF4\x20\xF5\x20\xF6\x20\xF7\x20"),
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("\xF8\x20\xF9\x20\xFA\x20\xFB\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 */
588 utf8_read_test(TESTSTR("\xFC\x20\xFD\x20"),
589 ERROR
, /* (incomplete sequence) */
590 0x00000020, /* SPACE */
591 ERROR
, /* (incomplete sequence) */
592 0x00000020, /* SPACE */
594 utf8_read_test(TESTSTR("\xC0"),
595 ERROR
, /* (incomplete sequence) */
597 utf8_read_test(TESTSTR("\xE0\x80"),
598 ERROR
, /* (incomplete sequence) */
600 utf8_read_test(TESTSTR("\xF0\x80\x80"),
601 ERROR
, /* (incomplete sequence) */
603 utf8_read_test(TESTSTR("\xF8\x80\x80\x80"),
604 ERROR
, /* (incomplete sequence) */
606 utf8_read_test(TESTSTR("\xFC\x80\x80\x80\x80"),
607 ERROR
, /* (incomplete sequence) */
609 utf8_read_test(TESTSTR("\xDF"),
610 ERROR
, /* (incomplete sequence) */
612 utf8_read_test(TESTSTR("\xEF\xBF"),
613 ERROR
, /* (incomplete sequence) */
615 utf8_read_test(TESTSTR("\xF7\xBF\xBF"),
616 ERROR
, /* (incomplete sequence) */
618 utf8_read_test(TESTSTR("\xFB\xBF\xBF\xBF"),
619 ERROR
, /* (incomplete sequence) */
621 utf8_read_test(TESTSTR("\xFD\xBF\xBF\xBF\xBF"),
622 ERROR
, /* (incomplete sequence) */
624 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"),
625 ERROR
, /* (incomplete sequence) */
626 ERROR
, /* (incomplete sequence) */
627 ERROR
, /* (incomplete sequence) */
628 ERROR
, /* (incomplete sequence) */
629 ERROR
, /* (incomplete sequence) */
630 ERROR
, /* (incomplete sequence) */
631 ERROR
, /* (incomplete sequence) */
632 ERROR
, /* (incomplete sequence) */
633 ERROR
, /* (incomplete sequence) */
634 ERROR
, /* (incomplete sequence) */
636 utf8_read_test(TESTSTR("\xFE"),
637 ERROR
, /* (invalid UTF-8 byte) */
639 utf8_read_test(TESTSTR("\xFF"),
640 ERROR
, /* (invalid UTF-8 byte) */
642 utf8_read_test(TESTSTR("\xFE\xFE\xFF\xFF"),
643 ERROR
, /* (invalid UTF-8 byte) */
644 ERROR
, /* (invalid UTF-8 byte) */
645 ERROR
, /* (invalid UTF-8 byte) */
646 ERROR
, /* (invalid UTF-8 byte) */
648 utf8_read_test(TESTSTR("\xC0\xAF"),
649 ERROR
, /* SOLIDUS (overlong form of 2F) */
651 utf8_read_test(TESTSTR("\xE0\x80\xAF"),
652 ERROR
, /* SOLIDUS (overlong form of 2F) */
654 utf8_read_test(TESTSTR("\xF0\x80\x80\xAF"),
655 ERROR
, /* SOLIDUS (overlong form of 2F) */
657 utf8_read_test(TESTSTR("\xF8\x80\x80\x80\xAF"),
658 ERROR
, /* SOLIDUS (overlong form of 2F) */
660 utf8_read_test(TESTSTR("\xFC\x80\x80\x80\x80\xAF"),
661 ERROR
, /* SOLIDUS (overlong form of 2F) */
663 utf8_read_test(TESTSTR("\xC1\xBF"),
664 ERROR
, /* <control> (overlong form of 7F) */
666 utf8_read_test(TESTSTR("\xE0\x9F\xBF"),
667 ERROR
, /* <no name available> (overlong form of DF BF) */
669 utf8_read_test(TESTSTR("\xF0\x8F\xBF\xBF"),
670 ERROR
, /* <no name available> (overlong form of EF BF BF) (invalid char) */
672 utf8_read_test(TESTSTR("\xF8\x87\xBF\xBF\xBF"),
673 ERROR
, /* <no name available> (overlong form of F7 BF BF BF) */
675 utf8_read_test(TESTSTR("\xFC\x83\xBF\xBF\xBF\xBF"),
676 ERROR
, /* <no name available> (overlong form of FB BF BF BF BF) */
678 utf8_read_test(TESTSTR("\xC0\x80"),
679 ERROR
, /* <control> (overlong form of 00) */
681 utf8_read_test(TESTSTR("\xE0\x80\x80"),
682 ERROR
, /* <control> (overlong form of 00) */
684 utf8_read_test(TESTSTR("\xF0\x80\x80\x80"),
685 ERROR
, /* <control> (overlong form of 00) */
687 utf8_read_test(TESTSTR("\xF8\x80\x80\x80\x80"),
688 ERROR
, /* <control> (overlong form of 00) */
690 utf8_read_test(TESTSTR("\xFC\x80\x80\x80\x80\x80"),
691 ERROR
, /* <control> (overlong form of 00) */
693 utf8_read_test(TESTSTR("\xED\xA0\x80"),
694 ERROR
, /* <Non Private Use High Surrogate, First> (surrogate) */
696 utf8_read_test(TESTSTR("\xED\xAD\xBF"),
697 ERROR
, /* <Non Private Use High Surrogate, Last> (surrogate) */
699 utf8_read_test(TESTSTR("\xED\xAE\x80"),
700 ERROR
, /* <Private Use High Surrogate, First> (surrogate) */
702 utf8_read_test(TESTSTR("\xED\xAF\xBF"),
703 ERROR
, /* <Private Use High Surrogate, Last> (surrogate) */
705 utf8_read_test(TESTSTR("\xED\xB0\x80"),
706 ERROR
, /* <Low Surrogate, First> (surrogate) */
708 utf8_read_test(TESTSTR("\xED\xBE\x80"),
709 ERROR
, /* <no name available> (surrogate) */
711 utf8_read_test(TESTSTR("\xED\xBF\xBF"),
712 ERROR
, /* <Low Surrogate, Last> (surrogate) */
714 utf8_read_test(TESTSTR("\xED\xA0\x80\xED\xB0\x80"),
715 ERROR
, /* <Non Private Use High Surrogate, First> (surrogate) */
716 ERROR
, /* <Low Surrogate, First> (surrogate) */
718 utf8_read_test(TESTSTR("\xED\xA0\x80\xED\xBF\xBF"),
719 ERROR
, /* <Non Private Use High Surrogate, First> (surrogate) */
720 ERROR
, /* <Low Surrogate, Last> (surrogate) */
722 utf8_read_test(TESTSTR("\xED\xAD\xBF\xED\xB0\x80"),
723 ERROR
, /* <Non Private Use High Surrogate, Last> (surrogate) */
724 ERROR
, /* <Low Surrogate, First> (surrogate) */
726 utf8_read_test(TESTSTR("\xED\xAD\xBF\xED\xBF\xBF"),
727 ERROR
, /* <Non Private Use High Surrogate, Last> (surrogate) */
728 ERROR
, /* <Low Surrogate, Last> (surrogate) */
730 utf8_read_test(TESTSTR("\xED\xAE\x80\xED\xB0\x80"),
731 ERROR
, /* <Private Use High Surrogate, First> (surrogate) */
732 ERROR
, /* <Low Surrogate, First> (surrogate) */
734 utf8_read_test(TESTSTR("\xED\xAE\x80\xED\xBF\xBF"),
735 ERROR
, /* <Private Use High Surrogate, First> (surrogate) */
736 ERROR
, /* <Low Surrogate, Last> (surrogate) */
738 utf8_read_test(TESTSTR("\xED\xAF\xBF\xED\xB0\x80"),
739 ERROR
, /* <Private Use High Surrogate, Last> (surrogate) */
740 ERROR
, /* <Low Surrogate, First> (surrogate) */
742 utf8_read_test(TESTSTR("\xED\xAF\xBF\xED\xBF\xBF"),
743 ERROR
, /* <Private Use High Surrogate, Last> (surrogate) */
744 ERROR
, /* <Low Surrogate, Last> (surrogate) */
746 utf8_read_test(TESTSTR("\xEF\xBF\xBE"),
747 ERROR
, /* <no name available> (invalid char) */
749 utf8_read_test(TESTSTR("\xEF\xBF\xBF"),
750 ERROR
, /* <no name available> (invalid char) */
752 printf("read tests completed\n");
753 printf("write tests beginning\n");
755 const static long str
[] =
756 {0x03BAL
, 0x1F79L
, 0x03C3L
, 0x03BCL
, 0x03B5L
, 0};
757 utf8_write_test(TESTSTR(str
),
766 const static long str
[] = {0x0000L
, 0};
767 utf8_write_test(TESTSTR(str
),
772 const static long str
[] = {0x0080L
, 0};
773 utf8_write_test(TESTSTR(str
),
778 const static long str
[] = {0x0800L
, 0};
779 utf8_write_test(TESTSTR(str
),
784 const static long str
[] = {0x00010000L
, 0};
785 utf8_write_test(TESTSTR(str
),
786 0xF0, 0x90, 0x80, 0x80,
790 const static long str
[] = {0x00200000L
, 0};
791 utf8_write_test(TESTSTR(str
),
792 0xF8, 0x88, 0x80, 0x80, 0x80,
796 const static long str
[] = {0x04000000L
, 0};
797 utf8_write_test(TESTSTR(str
),
798 0xFC, 0x84, 0x80, 0x80, 0x80, 0x80,
802 const static long str
[] = {0x007FL
, 0};
803 utf8_write_test(TESTSTR(str
),
808 const static long str
[] = {0x07FFL
, 0};
809 utf8_write_test(TESTSTR(str
),
814 const static long str
[] = {0xFFFDL
, 0};
815 utf8_write_test(TESTSTR(str
),
820 const static long str
[] = {0xFFFFL
, 0};
821 utf8_write_test(TESTSTR(str
),
826 const static long str
[] = {0x001FFFFFL
, 0};
827 utf8_write_test(TESTSTR(str
),
828 0xF7, 0xBF, 0xBF, 0xBF,
832 const static long str
[] = {0x03FFFFFFL
, 0};
833 utf8_write_test(TESTSTR(str
),
834 0xFB, 0xBF, 0xBF, 0xBF, 0xBF,
838 const static long str
[] = {0x7FFFFFFFL
, 0};
839 utf8_write_test(TESTSTR(str
),
840 0xFD, 0xBF, 0xBF, 0xBF, 0xBF, 0xBF,
844 const static long str
[] = {0xD7FFL
, 0};
845 utf8_write_test(TESTSTR(str
),
850 const static long str
[] = {0xD800L
, 0};
851 utf8_write_test(TESTSTR(str
),
856 const static long str
[] = {0xD800L
, 0xDC00L
, 0};
857 utf8_write_test(TESTSTR(str
),
863 const static long str
[] = {0xDFFFL
, 0};
864 utf8_write_test(TESTSTR(str
),
869 const static long str
[] = {0xE000L
, 0};
870 utf8_write_test(TESTSTR(str
),
874 printf("write tests completed\n");
876 printf("total: %d errors\n", total_errs
);
877 return (total_errs
!= 0);
879 #endif /* TESTMODE */
881 const charset_spec charset_CS_UTF8
= {
882 CS_UTF8
, read_utf8
, write_utf8
, NULL
885 #else /* ENUM_CHARSETS */
887 ENUM_CHARSET(CS_UTF8
)
889 #endif /* ENUM_CHARSETS */