2 * iso2022.c - support for ISO/IEC 2022 (alias ECMA-35).
4 * This isn't a complete implementation of ISO/IEC 2022, but it's
5 * close. It only handles decoding, because a fully general encoder
6 * isn't really useful. It can decode 8-bit and 7-bit versions, with
7 * support for single-byte and multi-byte character sets, all four
8 * containers (G0, G1, G2, and G3), using both single-shift and
9 * locking-shift sequences.
11 * The general principle is that any valid ISO/IEC 2022 sequence
12 * should either be correctly decoded or should emit an ERROR. The
13 * only exception to this is that the C0 and C1 sets are fixed as
14 * those of ISO/IEC 6429. Escape sequences for designating control
15 * sets are passed through, so a post-processor could fix them up if
18 * DOCS to UTF-8 works. Other DOCS sequences are ignored, which will
19 * produce surprising results.
36 enum {S4
, S6
, M4
, M6
};
38 static long int null_dbcs_to_unicode(int, int);
40 const struct iso2022_subcharset
{
43 const sbcs_data
*sbcs_base
;
44 long int (*dbcs_fn
)(int, int);
45 } iso2022_subcharsets
[] = {
46 { S4
, 0, '0', 0x00, &sbcsdata_CS_DEC_GRAPHICS
},
47 { S4
, 0, '<', 0x80, &sbcsdata_CS_DEC_MCS
},
48 { S4
, 0, 'A', 0x00, &sbcsdata_CS_BS4730
},
49 { S4
, 0, 'B', 0x00, &sbcsdata_CS_ASCII
},
50 { S4
, 0, 'I', 0x80, &sbcsdata_CS_JISX0201
},
51 { S4
, 0, 'J', 0x00, &sbcsdata_CS_JISX0201
},
53 { S6
, 0, 'A', 0x80, &sbcsdata_CS_ISO8859_1
},
54 { S6
, 0, 'B', 0x80, &sbcsdata_CS_ISO8859_2
},
55 { S6
, 0, 'C', 0x80, &sbcsdata_CS_ISO8859_3
},
56 { S6
, 0, 'D', 0x80, &sbcsdata_CS_ISO8859_4
},
57 { S6
, 0, 'F', 0x80, &sbcsdata_CS_ISO8859_7
},
58 { S6
, 0, 'G', 0x80, &sbcsdata_CS_ISO8859_6
},
59 { S6
, 0, 'H', 0x80, &sbcsdata_CS_ISO8859_8
},
60 { S6
, 0, 'L', 0x80, &sbcsdata_CS_ISO8859_5
},
61 { S6
, 0, 'M', 0x80, &sbcsdata_CS_ISO8859_9
},
62 { S6
, 0, 'T', 0x80, &sbcsdata_CS_ISO8859_11
},
63 { S6
, 0, 'V', 0x80, &sbcsdata_CS_ISO8859_10
},
64 { S6
, 0, 'Y', 0x80, &sbcsdata_CS_ISO8859_13
},
65 { S6
, 0, '_', 0x80, &sbcsdata_CS_ISO8859_14
},
66 { S6
, 0, 'b', 0x80, &sbcsdata_CS_ISO8859_15
},
67 { S6
, 0, 'f', 0x80, &sbcsdata_CS_ISO8859_16
},
68 { S6
, 0, '~' }, /* empty 96-set */
70 { M4
, 0, '@' }, /* JIS C 6226-1978 */
72 { M4
, 0, 'A', -0x21, 0, &gb2312_to_unicode
},
73 { M4
, 0, 'B', -0x21, 0, &jisx0208_to_unicode
},
74 { M4
, 0, 'C', -0x21, 0, &ksx1001_to_unicode
},
75 { M4
, 0, 'D', -0x21, 0, &jisx0212_to_unicode
},
76 { M4
, 0, '~', 0, 0, &null_dbcs_to_unicode
}, /* empty 94^n-set */
77 { M6
, 0, '~', 0, 0, &null_dbcs_to_unicode
}, /* empty 96^n-set */
80 static long int null_dbcs_to_unicode(int r
, int c
)
85 /* States, or "what we're currently accumulating". */
87 IDLE
, /* None of the below */
88 SS2CHAR
, /* Accumulating a character after SS2 */
89 SS3CHAR
, /* Accumulating a character after SS3 */
90 ESCSEQ
, /* Accumulating an escape sequence */
91 ESCDROP
, /* Discarding an escape sequence */
92 ESCPASS
, /* Passing through an escape sequence */
93 DOCSUTF8
, /* DOCSed into UTF-8 */
94 DOCSCTEXT
/* DOCSed into a COMPOUND_TEXT extended segment */
99 static void dump_state(charset_state
*s
)
101 unsigned s0
= s
->s0
, s1
= s
->s1
;
102 char const * const modes
[] = { "IDLE", "SS2CHAR", "SS3CHAR",
103 "ESCSEQ", "ESCDROP", "ESCPASS",
106 fprintf(stderr
, "s0: %s", modes
[s0
>> 29]);
107 fprintf(stderr
, " %02x %02x %02x ", (s0
>> 16) & 0xff, (s0
>> 8) & 0xff,
109 fprintf(stderr
, "s1: LS%d LS%dR", (s1
>> 30) & 3, (s1
>> 28) & 3);
110 fprintf(stderr
, " %d %d %d %d\n", s1
& 0x7f, (s1
>> 7) & 0x7f,
111 (s1
>> 14) & 0x7f, (s1
>> 21) & 0x7f);
115 static void designate(charset_state
*state
, int container
,
116 int type
, int ibyte
, int fbyte
)
120 assert(container
>= 0 && container
<= 3);
121 assert(type
== S4
|| type
== S6
|| type
== M4
|| type
== M6
);
123 for (i
= 0; i
<= lenof(iso2022_subcharsets
); i
++) {
124 if (iso2022_subcharsets
[i
].type
== type
&&
125 iso2022_subcharsets
[i
].i
== ibyte
&&
126 iso2022_subcharsets
[i
].f
== fbyte
) {
127 state
->s1
&= ~(0x7fL
<< (container
* 7));
128 state
->s1
|= (i
<< (container
* 7));
133 * If we don't find the charset, invoke the empty one, so we
134 * output ERROR rather than garbage.
136 designate(state
, container
, type
, 0, '~');
139 static void do_utf8(long int input_chr
,
140 charset_state
*state
,
141 void (*emit
)(void *ctx
, long int output
),
144 charset_state ustate
;
145 charset_spec
const *utf8
;
148 ustate
.s0
= state
->s0
& 0x03ffffffL
;
149 read_utf8(NULL
, input_chr
, &ustate
, emit
, emitctx
);
150 state
->s0
= (state
->s0
& ~0x03ffffffL
) | (ustate
.s0
& 0x03ffffffL
);
153 static void docs_utf8(long int input_chr
,
154 charset_state
*state
,
155 void (*emit
)(void *ctx
, long int output
),
161 * Bits [25:0] of s0 are reserved for read_utf8().
162 * Bits [27:26] are a tiny state machine to recognise ESC % @.
164 retstate
= (state
->s0
& 0x0c000000L
) >> 26;
165 if (retstate
== 1 && input_chr
== '%')
167 else if (retstate
== 2 && input_chr
== '@') {
168 /* If we've got a partial UTF-8 sequence, complain. */
169 if (state
->s0
& 0x03ffffffL
)
170 emit(emitctx
, ERROR
);
174 if (retstate
>= 1) do_utf8(ESC
, state
, emit
, emitctx
);
175 if (retstate
>= 2) do_utf8('%', state
, emit
, emitctx
);
177 if (input_chr
== ESC
)
180 do_utf8(input_chr
, state
, emit
, emitctx
);
183 state
->s0
= (state
->s0
& ~0x0c000000L
) | (retstate
<< 26);
186 struct ctext_encoding
{
188 charset_spec
const *subcs
;
192 * In theory, this list is in <http://ftp.x.org/pub/docs/registry>,
193 * but XLib appears to have its own ideas, and encodes these three
197 extern charset_spec
const charset_CS_ISO8859_14
;
198 extern charset_spec
const charset_CS_ISO8859_15
;
199 extern charset_spec
const charset_CS_BIG5
;
201 static struct ctext_encoding
const ctext_encodings
[] = {
202 { "big5-0\2", &charset_CS_BIG5
},
203 { "iso8859-14\2", &charset_CS_ISO8859_14
},
204 { "iso8859-15\2", &charset_CS_ISO8859_15
}
207 static void docs_ctext(long int input_chr
,
208 charset_state
*state
,
209 void (*emit
)(void *ctx
, long int output
),
213 * s0[27:26] = first entry in ctext_encodings that matches
214 * s0[25:22] = number of characters successfully matched, 0xf if all
215 * s0[21:8] count the number of octets left in the segment
216 * s0[7:0] are for sub-charset use
218 int n
= (state
->s0
>> 22) & 0xf, i
= (state
->s0
>> 26) & 3, oi
= i
, j
;
219 int length
= (state
->s0
>> 8) & 0x3fff;
222 /* Haven't read length yet */
223 if ((state
->s0
& 0xff) == 0)
224 /* ... or even the first byte */
225 state
->s0
|= input_chr
;
227 length
= (state
->s0
& 0x7f) * 0x80 + (input_chr
& 0x7f);
231 state
->s0
= (state
->s0
& 0xf0000000) | (length
<< 8);
238 /* Skipping unknown encoding. Look out for STX. */
240 state
->s0
= (state
->s0
& 0xf0000000) | (i
<< 26) | (0xf << 22);
241 } else if (n
!= 0xf) {
242 while (j
< lenof(ctext_encodings
) &&
243 !memcmp(ctext_encodings
[j
].name
,
244 ctext_encodings
[oi
].name
, n
)) {
245 if (ctext_encodings
[j
].name
[n
] < input_chr
)
250 if (i
>= lenof(ctext_encodings
) ||
251 memcmp(ctext_encodings
[i
].name
,
252 ctext_encodings
[oi
].name
, n
) ||
253 ctext_encodings
[i
].name
[n
] != input_chr
) {
254 /* Doom! We haven't heard of this encoding */
255 i
= lenof(ctext_encodings
);
259 * Otherwise, we have found an additional character in our
260 * encoding name. See if we have reached the _end_ of our
264 if (!ctext_encodings
[i
].name
[n
])
268 * Failing _that_, we simply update our encoding-name-
271 assert(i
< 4 && n
< 16);
272 state
->s0
= (state
->s0
& 0xf0000000) | (i
<< 26) | (n
<< 22);
274 if (i
>= lenof(ctext_encodings
))
275 emit(emitctx
, ERROR
);
277 charset_state substate
;
278 charset_spec
const *subcs
= ctext_encodings
[i
].subcs
;
280 substate
.s0
= state
->s0
& 0xff;
281 subcs
->read(subcs
, input_chr
, &substate
, emit
, emitctx
);
282 state
->s0
= (state
->s0
& ~0xff) | (substate
.s0
& 0xff);
288 state
->s0
= (state
->s0
&~0x003fff00) | (length
<< 8);
291 static void read_iso2022(charset_spec
const *charset
, long int input_chr
,
292 charset_state
*state
,
293 void (*emit
)(void *ctx
, long int output
),
297 /* dump_state(state); */
299 * We have to make fairly efficient use of the 64 bits of state
300 * available to us. Long-term state goes in s1, and consists of
301 * the identities of the character sets designated as G0/G1/G2/G3
302 * and the locking-shift states for GL and GR. Short-term state
303 * goes in s0: The bottom half of s0 accumulates characters for an
304 * escape sequence or a multi-byte character, while the top three
305 * bits indicate what they're being accumulated for. After DOCS,
306 * the bottom 29 bits of state are available for the DOCS function
307 * to use -- the UTF-8 one uses the bottom 26 for UTF-8 decoding
308 * and the top two to recognised ESC % @.
310 * s0[31:29] = state enum
311 * s0[24:0] = accumulated bytes
312 * s1[31:30] = GL locking-shift state
313 * s1[29:28] = GR locking-shift state
314 * s1[27:21] = G3 charset
315 * s1[20:14] = G2 charset
316 * s1[13:7] = G1 charset
317 * s1[6:0] = G0 charset
322 #define LOCKING_SHIFT(n,side) \
323 (state->s1 = (state->s1 & ~(3L<<(side))) | ((n ## L)<<(side)))
324 #define MODE ((state->s0 & 0xe0000000L) >> 29)
325 #define ENTER_MODE(m) (state->s0 = (state->s0 & ~0xe0000000L) | ((m)<<29))
326 #define SINGLE_SHIFT(n) ENTER_MODE(SS2CHAR - 2 + (n))
327 #define ASSERT_IDLE do { \
328 if (state->s0 != 0) emit(emitctx, ERROR); \
332 if (state
->s1
== 0) {
334 * Since there's no LS0R, this means we must just have started.
335 * Set up a sane initial state (LS0, LS1R, ASCII in G0/G1/G2/G3).
337 LOCKING_SHIFT(0, LEFT
);
338 LOCKING_SHIFT(1, RIGHT
);
339 designate(state
, 0, S4
, 0, 'B');
340 designate(state
, 1, S4
, 0, 'B');
341 designate(state
, 2, S4
, 0, 'B');
342 designate(state
, 3, S4
, 0, 'B');
345 if (MODE
== DOCSUTF8
) {
346 docs_utf8(input_chr
, state
, emit
, emitctx
);
349 if (MODE
== DOCSCTEXT
) {
350 docs_ctext(input_chr
, state
, emit
, emitctx
);
354 if ((input_chr
& 0x60) == 0x00) {
355 /* C0 or C1 control */
362 LOCKING_SHIFT(0, LEFT
);
365 LOCKING_SHIFT(1, LEFT
);
374 emit(emitctx
, input_chr
);
377 } else if ((input_chr
& 0x80) || MODE
< ESCSEQ
) {
379 struct iso2022_subcharset
const *subcs
;
384 * Force idle state if we're in mid escape sequence, or in a
385 * multi-byte character with a different top bit.
387 if (MODE
>= ESCSEQ
||
388 ((state
->s0
& 0x00ff0000L
) != 0 &&
389 (((state
->s0
>> 16) ^ input_chr
) & 0x80)))
391 if (MODE
== SS2CHAR
|| MODE
== SS3CHAR
) /* Single-shift */
392 container
= MODE
- SS2CHAR
+ 2;
393 else if (input_chr
>= 0x80) /* GR */
394 container
= (state
->s1
>> 28) & 3;
396 container
= state
->s1
>> 30;
399 input_7bit
= input_chr
& ~0x80;
400 subcs
= &iso2022_subcharsets
[(state
->s1
>> (container
* 7)) & 0x7f];
401 if ((subcs
->type
== S4
|| subcs
->type
== M4
) &&
402 (input_7bit
== 0x20 || input_7bit
== 0x7f)) {
403 /* characters not in 94-char set */
404 if (is_gl
) emit(emitctx
, input_7bit
);
405 else emit(emitctx
, ERROR
);
406 } else if (subcs
->type
== M4
|| subcs
->type
== M6
) {
407 if ((state
->s0
& 0x00ff0000L
) == 0) {
408 state
->s0
|= input_chr
<< 16;
412 subcs
->dbcs_fn(((state
->s0
>> 16) & 0x7f) + subcs
->offset
,
413 input_7bit
+ subcs
->offset
));
416 if ((state
->s0
& 0x00ff0000L
) != 0)
417 emit(emitctx
, ERROR
);
418 emit(emitctx
, subcs
->sbcs_base ?
419 sbcs_to_unicode(subcs
->sbcs_base
, input_7bit
+ subcs
->offset
):
425 if (MODE
== ESCPASS
) {
426 emit(emitctx
, input_chr
);
427 if ((input_chr
& 0xf0) != 0x20)
433 * Intermediate bytes shall be any of the 16 positions of
434 * column 02 of the code table; they are denoted by the symbol
437 if ((input_chr
& 0xf0) == 0x20) {
438 if (((state
->s0
>> 16) & 0xff) == 0)
439 state
->s0
|= input_chr
<< 16;
440 else if (((state
->s0
>> 8) & 0xff) == 0)
441 state
->s0
|= input_chr
<< 8;
443 /* Long escape sequence. Switch to ESCPASS or ESCDROP. */
444 i1
= (state
->s0
>> 16) & 0xff;
445 i2
= (state
->s0
>> 8) & 0xff;
447 case '(': case ')': case '*': case '+':
448 case '-': case '.': case '/':
456 emit(emitctx
, input_chr
);
466 * Final bytes shall be any of the 79 positions of columns 03
467 * to 07 of the code table excluding position 07/15; they are
468 * denoted by the symbol F.
470 i1
= (state
->s0
>> 16) & 0xff;
471 i2
= (state
->s0
>> 8) & 0xff;
473 input_chr
= 0; /* Make sure it won't match. */
476 case 0: /* No intermediate bytes */
485 LOCKING_SHIFT(2, LEFT
);
488 LOCKING_SHIFT(3, LEFT
);
491 LOCKING_SHIFT(3, RIGHT
);
494 LOCKING_SHIFT(2, RIGHT
);
497 LOCKING_SHIFT(1, RIGHT
);
500 /* Unsupported escape sequence. Spit it back out. */
502 emit(emitctx
, input_chr
);
507 * Various coding structure facilities specify that designating
508 * a code element also invokes it. As far as I can see, invoking
509 * it now will have the same practical effect, since those
510 * facilities also ban the use of locking shifts.
513 case 'A': /* G0 element used and invoked into GL */
514 LOCKING_SHIFT(0, LEFT
);
516 case 'C': /* G0 in GL, G1 in GR */
517 case 'D': /* Ditto, at least for 8-bit codes */
518 case 'L': /* ISO 4873 (ECMA-43) level 1 */
519 case 'M': /* ISO 4873 (ECMA-43) level 2 */
520 LOCKING_SHIFT(0, LEFT
);
521 LOCKING_SHIFT(1, RIGHT
);
527 * IRR (Identify Revised Registration) is ignored here,
528 * since any revised registration must be
529 * upward-compatible with the old one, so either we'll
530 * support the new one or we'll emit ERROR when we run
531 * into a new character. In either case, there's nothing
535 case '(': /* GZD4 */ case ')': /* G1D4 */
536 case '*': /* G2D4 */ case '+': /* G3D4 */
537 designate(state
, i1
- '(', S4
, i2
, input_chr
);
539 case '-': /* G1D6 */ case '.': /* G2D6 */ case '/': /* G3D6 */
540 designate(state
, i1
- ',', S6
, i2
, input_chr
);
542 case '$': /* G?DM? */
544 case 0: /* Obsolete version of GZDM4 */
546 case '(': /* GZDM4 */ case ')': /* G1DM4 */
547 case '*': /* G2DM4 */ case '+': /* G3DM4 */
548 designate(state
, i2
- '(', M4
, 0, input_chr
);
550 case '-': /* G1DM6 */
551 case '.': /* G2DM6 */ case '/': /* G3DM6 */
552 designate(state
, i2
- ',', M6
, 0, input_chr
);
555 emit(emitctx
, ERROR
);
559 /* XXX What's a reasonable way to handle an unrecognised DOCS? */
564 ENTER_MODE(DOCSUTF8
);
571 ENTER_MODE(DOCSCTEXT
);
578 /* Unsupported nF escape sequence. Re-emit it. */
581 if (i2
) emit(emitctx
, i2
);
582 emit(emitctx
, input_chr
);
588 static int write_iso2022(charset_spec
const *charset
, long int input_chr
,
589 charset_state
*state
,
590 void (*emit
)(void *ctx
, long int output
),
596 const charset_spec charset_CS_ISO2022
= {
597 CS_ISO2022
, read_iso2022
, write_iso2022
, NULL
608 void iso2022_emit(void *ctx
, long output
)
610 wchar_t **p
= (wchar_t **)ctx
;
614 void iso2022_read_test(int line
, char *input
, int inlen
, ...)
617 wchar_t *p
, str
[512];
622 state
.s0
= state
.s1
= 0;
625 for (i
= 0; i
< inlen
; i
++)
626 read_iso2022(NULL
, input
[i
] & 0xFF, &state
, iso2022_emit
, &p
);
630 for (i
= 0; i
< p
- str
; i
++) {
631 l
= va_arg(ap
, long int);
633 printf("%d: correct string shorter than output\n", line
);
638 printf("%d: char %d came out as %08x, should be %08lx\n",
644 l
= va_arg(ap
, long int);
646 printf("%d: correct string longer than output\n", line
);
653 /* Macro to concoct the first three parameters of iso2022_read_test. */
654 #define TESTSTR(x) __LINE__, x, lenof(x)
658 printf("read tests beginning\n");
659 /* Simple test (Emacs sample text for Japanese, in ISO-2022-JP) */
660 iso2022_read_test(TESTSTR("Japanese (\x1b$BF|K\\8l\x1b(B)\t"
661 "\x1b$B$3$s$K$A$O\x1b(B, "
662 "\x1b$B%3%s%K%A%O\x1b(B\n"),
663 'J','a','p','a','n','e','s','e',' ','(',
664 0x65E5, 0x672C, 0x8A9E, ')', '\t',
665 0x3053, 0x3093, 0x306b, 0x3061, 0x306f, ',', ' ',
666 0x30b3, 0x30f3, 0x30cb, 0x30c1, 0x30cf, '\n', 0, -1);
667 /* Same thing in EUC-JP (with designations, and half-width katakana) */
668 iso2022_read_test(TESTSTR("\x1b$)B\x1b*I\x1b$+D"
669 "Japanese (\xc6\xfc\xcb\xdc\xb8\xec)\t"
670 "\xa4\xb3\xa4\xf3\xa4\xcb\xa4\xc1\xa4\xcf, "
671 "\x8e\xba\x8e\xdd\x8e\xc6\x8e\xc1\x8e\xca\n"),
672 'J','a','p','a','n','e','s','e',' ','(',
673 0x65E5, 0x672C, 0x8A9E, ')', '\t',
674 0x3053, 0x3093, 0x306b, 0x3061, 0x306f, ',', ' ',
675 0xff7a, 0xff9d, 0xff86, 0xff81, 0xff8a, '\n', 0, -1);
676 /* Multibyte single-shift */
677 iso2022_read_test(TESTSTR("\x1b$)B\x1b*I\x1b$+D\x8f\"/!"),
679 /* Non-existent SBCS */
680 iso2022_read_test(TESTSTR("\x1b(!Zfnord\n"),
681 ERROR
, ERROR
, ERROR
, ERROR
, ERROR
, '\n', 0, -1);
682 /* Pass-through of ordinary escape sequences, including a long one */
683 iso2022_read_test(TESTSTR("\x1b""b\x1b#5\x1b#!!!5"),
684 0x1B, 'b', 0x1B, '#', '5',
685 0x1B, '#', '!', '!', '!', '5', 0, -1);
686 /* Non-existent DBCS (also 5-byte escape sequence) */
687 iso2022_read_test(TESTSTR("\x1b$(!Bfnord!"),
688 ERROR
, ERROR
, ERROR
, 0, -1);
689 /* Incomplete DB characters */
690 iso2022_read_test(TESTSTR("\x1b$B(,(\x1b(BHi\x1b$B(,(\n"),
691 0x2501, ERROR
, 'H', 'i', 0x2501, ERROR
, '\n', 0, -1);
692 iso2022_read_test(TESTSTR("\x1b$)B\x1b*I\x1b$+D\xa4""B"),
694 iso2022_read_test(TESTSTR("\x1b$)B\x1b*I\x1b$+D\x0e\x1b|$\xa2\xaf"),
695 ERROR
, 0x02D8, 0, -1);
696 /* Incomplete escape sequence */
697 iso2022_read_test(TESTSTR("\x1b\n"), ERROR
, '\n', 0, -1);
698 iso2022_read_test(TESTSTR("\x1b-A\x1b~\x1b\xa1"), ERROR
, 0xa1, 0, -1);
699 /* Incomplete single-shift */
700 iso2022_read_test(TESTSTR("\x8e\n"), ERROR
, '\n', 0, -1);
701 iso2022_read_test(TESTSTR("\x1b$*B\x8e(\n"), ERROR
, '\n', 0, -1);
702 /* Corner cases (02/00 and 07/15) */
703 iso2022_read_test(TESTSTR("\x1b(B\x20\x7f"), 0x20, 0x7f, 0, -1);
704 iso2022_read_test(TESTSTR("\x1b(I\x20\x7f"), 0x20, 0x7f, 0, -1);
705 iso2022_read_test(TESTSTR("\x1b$B\x20\x7f"), 0x20, 0x7f, 0, -1);
706 iso2022_read_test(TESTSTR("\x1b-A\x0e\x20\x7f"), 0xa0, 0xff, 0, -1);
707 iso2022_read_test(TESTSTR("\x1b$-~\x0e\x20\x7f"), ERROR
, 0, -1);
708 iso2022_read_test(TESTSTR("\x1b)B\xa0\xff"), ERROR
, ERROR
, 0, -1);
709 iso2022_read_test(TESTSTR("\x1b)I\xa0\xff"), ERROR
, ERROR
, 0, -1);
710 iso2022_read_test(TESTSTR("\x1b$)B\xa0\xff"), ERROR
, ERROR
, 0, -1);
711 iso2022_read_test(TESTSTR("\x1b-A\x1b~\xa0\xff"), 0xa0, 0xff, 0, -1);
712 iso2022_read_test(TESTSTR("\x1b$-~\x1b~\xa0\xff"), ERROR
, 0, -1);
713 /* Designate control sets */
714 iso2022_read_test(TESTSTR("\x1b!@"), 0x1b, '!', '@', 0, -1);
715 /* Designate other coding system (UTF-8) */
716 iso2022_read_test(TESTSTR("\x1b%G"
717 "\xCE\xBA\xE1\xBD\xB9\xCF\x83\xCE\xBC\xCE\xB5"),
718 0x03BA, 0x1F79, 0x03C3, 0x03BC, 0x03B5, 0, -1);
719 iso2022_read_test(TESTSTR("\x1b-A\x1b%G\xCE\xBA\x1b%@\xa0"),
720 0x03BA, 0xA0, 0, -1);
721 iso2022_read_test(TESTSTR("\x1b%G\xCE\x1b%@"), ERROR
, 0, -1);
722 iso2022_read_test(TESTSTR("\x1b%G\xCE\xBA\x1b%\x1b%@"),
723 0x03BA, 0x1B, '%', 0, -1);
724 /* DOCS (COMPOUND_TEXT extended segment) */
725 iso2022_read_test(TESTSTR("\x1b%/1\x80\x80"), 0, -1);
726 iso2022_read_test(TESTSTR("\x1b%/1\x80\x8fiso-8859-15\2xyz\x1b(B"),
727 ERROR
, ERROR
, ERROR
, 0, -1);
728 iso2022_read_test(TESTSTR("\x1b%/1\x80\x8eiso8859-15\2xyz\x1b(B"),
729 'x', 'y', 'z', 0, -1);
730 iso2022_read_test(TESTSTR("\x1b-A\x1b%/2\x80\x89"
731 "big5-0\2\xa1\x40\xa1\x40"),
732 0x3000, 0xa1, 0x40, 0, -1);
733 printf("read tests completed\n");
734 printf("total: %d errors\n", total_errs
);
735 return (total_errs
!= 0);
738 #endif /* TESTMODE */
740 #else /* ENUM_CHARSETS */
742 ENUM_CHARSET(CS_ISO2022
)