[thirdparty/glibc.git] / iconvdata / cns11643.h

/* Access functions for CNS 11643 handling.
   Copyright (C) 1998-2016 Free Software Foundation, Inc.
   This file is part of the GNU C Library.
   Contributed by Ulrich Drepper <drepper@cygnus.com>, 1998.

   The GNU C Library is free software; you can redistribute it and/or
   modify it under the terms of the GNU Lesser General Public
   License as published by the Free Software Foundation; either
   version 2.1 of the License, or (at your option) any later version.

   The GNU C Library is distributed in the hope that it will be useful,
   but WITHOUT ANY WARRANTY; without even the implied warranty of
   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
   Lesser General Public License for more details.

   You should have received a copy of the GNU Lesser General Public
   License along with the GNU C Library; if not, see
   <http://www.gnu.org/licenses/>.  */

#include <stdint.h>


/* Table for CNS 11643, plane 1 to UCS4 conversion.  */
extern const uint16_t __cns11643l1_to_ucs4_tab[];
/* Table for CNS 11643, plane 2 to UCS4 conversion.  */
extern const uint16_t __cns11643l2_to_ucs4_tab[];
/* Table for CNS 11643, plane 3 to UCS4 conversion.  */
extern const uint32_t __cns11643l3_to_ucs4_tab[];
/* Table for CNS 11643, plane 4 to UCS4 conversion.  */
extern const uint32_t __cns11643l4_to_ucs4_tab[];
/* Table for CNS 11643, plane 5 to UCS4 conversion.  */
extern const uint32_t __cns11643l5_to_ucs4_tab[];
/* Table for CNS 11643, plane 6 to UCS4 conversion.  */
extern const uint32_t __cns11643l6_to_ucs4_tab[];
/* Table for CNS 11643, plane 7 to UCS4 conversion.  */
extern const uint32_t __cns11643l7_to_ucs4_tab[];
/* Table for CNS 11643, plane 15 (old) to UCS4 conversion.  */
extern const uint32_t __cns11643l15_to_ucs4_tab[];


static inline uint32_t
__attribute ((always_inline))
cns11643_to_ucs4 (const unsigned char **s, size_t avail, unsigned char offset)
{
  unsigned char ch = *(*s);
  unsigned char ch2;
  unsigned char ch3;
  uint32_t result;
  int idx;

  if (ch < offset || (ch - offset) <= 0x20 || (ch - offset) > 0x30)
    return __UNKNOWN_10646_CHAR;

  if (avail < 3)
    return 0;

  ch2 = (*s)[1];
  if ((ch2 - offset) <= 0x20 || (ch2 - offset) >= 0x7f)
    return __UNKNOWN_10646_CHAR;

  ch3 = (*s)[2];
  if ((ch3 - offset) <= 0x20 || (ch3 - offset) >= 0x7f)
    return __UNKNOWN_10646_CHAR;

  idx = (ch2 - 0x21 - offset) * 94 + (ch3 - 0x21 - offset);

  switch (ch - 0x20 - offset)
    {
    case 1:
      if (idx > 0x21f2)
	return __UNKNOWN_10646_CHAR;
      result = __cns11643l1_to_ucs4_tab[idx];
      break;
    case 2:
      if (idx > 0x1de1)
	return __UNKNOWN_10646_CHAR;
      result = __cns11643l2_to_ucs4_tab[idx];
      break;
    case 3:
      if (idx > 0x19bd)
	return __UNKNOWN_10646_CHAR;
      result = __cns11643l3_to_ucs4_tab[idx];
      break;
    case 4:
      if (idx > 0x1c81)
	return __UNKNOWN_10646_CHAR;
      result = __cns11643l4_to_ucs4_tab[idx];
      break;
    case 5:
      if (idx > 0x219a)
	return __UNKNOWN_10646_CHAR;
      result = __cns11643l5_to_ucs4_tab[idx];
      break;
    case 6:
      if (idx > 0x18f3)
	return __UNKNOWN_10646_CHAR;
      result = __cns11643l6_to_ucs4_tab[idx];
      break;
    case 7:
      if (idx > 0x198a)
	return __UNKNOWN_10646_CHAR;
      result = __cns11643l7_to_ucs4_tab[idx];
      break;
    case 15:
      if (idx > 0x1c00)
	return __UNKNOWN_10646_CHAR;
      result = __cns11643l15_to_ucs4_tab[idx];
      break;
    default:
      return __UNKNOWN_10646_CHAR;
    }

  if (result != L'\0')
    (*s) += 3;
  else
    result = __UNKNOWN_10646_CHAR;

  return result;
}


/* Tables for the UCS4 -> CNS conversion.  */
extern const char __cns11643l1_from_ucs4_tab1[][2];
extern const char __cns11643l1_from_ucs4_tab2[][2];
extern const char __cns11643l1_from_ucs4_tab3[][2];
extern const char __cns11643l1_from_ucs4_tab4[][2];
extern const char __cns11643l1_from_ucs4_tab5[][2];
extern const char __cns11643l1_from_ucs4_tab6[][2];
extern const char __cns11643l1_from_ucs4_tab7[][2];
extern const char __cns11643l1_from_ucs4_tab8[][2];
extern const char __cns11643l1_from_ucs4_tab9[][2];
extern const char __cns11643l1_from_ucs4_tab10[][2];
extern const char __cns11643l1_from_ucs4_tab11[][2];
extern const char __cns11643l1_from_ucs4_tab12[][2];
extern const char __cns11643l1_from_ucs4_tab13[][2];
extern const char __cns11643l1_from_ucs4_tab14[][2];
extern const char __cns11643_from_ucs4p0_tab[][3];
extern const char __cns11643_from_ucs4p2_tab[][3];
extern const char __cns11643_from_ucs4p2c_tab[][3];


static inline size_t
__attribute ((always_inline))
ucs4_to_cns11643 (uint32_t wch, unsigned char *s, size_t avail)
{
  unsigned int ch = (unsigned int) wch;
  char buf[2];
  const char *cp = buf;
  size_t needed = 2;

  switch (ch)
    {
    case 0xa7 ... 0xf7:
      cp = __cns11643l1_from_ucs4_tab1[ch - 0xa7];
      break;
    case 0x2c7 ... 0x2d9:
      cp = __cns11643l1_from_ucs4_tab2[ch - 0x2c7];
      break;
    case 0x391 ... 0x3c9:
      cp = __cns11643l1_from_ucs4_tab3[ch - 0x391];
      break;
    case 0x2013 ... 0x203e:
      cp = __cns11643l1_from_ucs4_tab4[ch - 0x2013];
      break;
    case 0x2103:
      cp = "\x22\x6a";
      break;
    case 0x2105:
      cp = "\x22\x22";
      break;
    case 0x2109:
      cp = "\x22\x6b";
      break;
    case 0x2160 ... 0x2169:
      buf[0] = '\x24';
      buf[1] = '\x2b' + (ch - 0x2160);
      break;
    case 0x2170 ... 0x2179:
      buf[0] = '\x26';
      buf[1] = '\x35' + (ch - 0x2170);
      break;
    case 0x2190 ... 0x2199:
      cp = __cns11643l1_from_ucs4_tab5[ch - 0x2190];
      break;
    case 0x2215 ... 0x2267:
      cp = __cns11643l1_from_ucs4_tab6[ch - 0x2215];
      break;
    case 0x22a5:
      cp = "\x22\x47";
      break;
    case 0x22bf:
      cp = "\x22\x4a";
      break;
    case 0x2400 ... 0x2421:
      cp = __cns11643l1_from_ucs4_tab7[ch - 0x2400];
      break;
    case 0x2460 ... 0x247d:
      cp = __cns11643l1_from_ucs4_tab8[ch - 0x2460];
      break;
    case 0x2500 ... 0x2642:
      cp = __cns11643l1_from_ucs4_tab9[ch - 0x2500];
      break;
    case 0x3000 ... 0x3029:
      cp = __cns11643l1_from_ucs4_tab10[ch - 0x3000];
      break;
    case 0x30fb:
      cp = "\x21\x26";
      break;
    case 0x3105 ... 0x3129:
      buf[0] = '\x25';
      buf[1] = '\x47' + (ch - 0x3105);
      break;
    case 0x32a3:
      cp = "\x22\x21";
      break;
    case 0x338e ... 0x33d5:
      cp = __cns11643l1_from_ucs4_tab11[ch - 0x338e];
      break;
    case 0x4e00 ... 0x9f9c:
      cp = __cns11643l1_from_ucs4_tab12[ch - 0x4e00];
      if (cp[0] != '\0')
	break;
      /* FALLTHROUGH.  Let's try the other planes.  */
    case 0x3400 ... 0x4dff:
    case 0x9f9d ... 0x9fa5:
      /* Let's try the other planes.  */
      needed = 3;
      cp = __cns11643_from_ucs4p0_tab[ch - 0x3400];
      break;
    case 0xfa28:
      needed = 3;
      cp = "\x0f\x58\x4c";
      break;
    case 0xfe30 ... 0xfe6b:
      cp = __cns11643l1_from_ucs4_tab13[ch - 0xfe30];
      break;
    case 0xff01 ... 0xff5d:
      cp = __cns11643l1_from_ucs4_tab14[ch - 0xff01];
      break;
    case 0xffe0:
      cp = "\x22\x66";
      break;
    case 0xffe1:
      cp = "\x22\x67";
      break;
    case 0xffe5:
      cp = "\x22\x64";
      break;
    case 0x20000 ... 0x2a6d6:
      needed = 3;
      cp = __cns11643_from_ucs4p2_tab[ch - 0x20000];
      break;
    case 0x2f800 ... 0x2fa1d:
      needed = 3;
      cp = __cns11643_from_ucs4p2c_tab[ch - 0x2f800];
      break;
    default:
      return __UNKNOWN_10646_CHAR;
    }

  if (cp[0] == '\0')
    return __UNKNOWN_10646_CHAR;

  if (avail < needed)
    return 0;

  s[0] = cp[0];
  s[1] = cp[1];
  if (needed == 3)
    s[2] = cp[2];

  return needed;
}
Commit	Line	Data
289ac9dd	1	/* Access functions for CNS 11643 handling.
f7a9f785	2	Copyright (C) 1998-2016 Free Software Foundation, Inc.
2b474353 UD	3	This file is part of the GNU C Library.
	4	Contributed by Ulrich Drepper <drepper@cygnus.com>, 1998.
	5
	6	The GNU C Library is free software; you can redistribute it and/or
41bdb6e2 AJ	7	modify it under the terms of the GNU Lesser General Public
	8	License as published by the Free Software Foundation; either
	9	version 2.1 of the License, or (at your option) any later version.
2b474353 UD	10
	11	The GNU C Library is distributed in the hope that it will be useful,
	12	but WITHOUT ANY WARRANTY; without even the implied warranty of
	13	MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
41bdb6e2	14	Lesser General Public License for more details.
2b474353	15
41bdb6e2	16	You should have received a copy of the GNU Lesser General Public
59ba27a6 PE	17	License along with the GNU C Library; if not, see
59ba27a6 PE	18	<http://www.gnu.org/licenses/>. */
2b474353 UD	19
	20	#include <stdint.h>
	21
289ac9dd	22
755104ed UD	23	/* Table for CNS 11643, plane 1 to UCS4 conversion. */
755104ed UD	24	extern const uint16_t __cns11643l1_to_ucs4_tab[];
2b474353	25	/* Table for CNS 11643, plane 2 to UCS4 conversion. */
8619129f	26	extern const uint16_t __cns11643l2_to_ucs4_tab[];
289ac9dd UD	27	/* Table for CNS 11643, plane 3 to UCS4 conversion. */
	28	extern const uint32_t __cns11643l3_to_ucs4_tab[];
	29	/* Table for CNS 11643, plane 4 to UCS4 conversion. */
	30	extern const uint32_t __cns11643l4_to_ucs4_tab[];
	31	/* Table for CNS 11643, plane 5 to UCS4 conversion. */
	32	extern const uint32_t __cns11643l5_to_ucs4_tab[];
	33	/* Table for CNS 11643, plane 6 to UCS4 conversion. */
	34	extern const uint32_t __cns11643l6_to_ucs4_tab[];
	35	/* Table for CNS 11643, plane 7 to UCS4 conversion. */
	36	extern const uint32_t __cns11643l7_to_ucs4_tab[];
	37	/* Table for CNS 11643, plane 15 (old) to UCS4 conversion. */
	38	extern const uint32_t __cns11643l15_to_ucs4_tab[];
2b474353 UD	39
2b474353 UD	40
9b26f5c4	41	static inline uint32_t
dd9423a6	42	__attribute ((always_inline))
085a4412	43	cns11643_to_ucs4 (const unsigned char **s, size_t avail, unsigned char offset)
2b474353 UD	44	{
	45	unsigned char ch = (s);
	46	unsigned char ch2;
	47	unsigned char ch3;
9b26f5c4	48	uint32_t result;
2b474353 UD	49	int idx;
	50
	51	if (ch < offset \|\| (ch - offset) <= 0x20 \|\| (ch - offset) > 0x30)
d64b6ad0	52	return __UNKNOWN_10646_CHAR;
2b474353 UD	53
	54	if (avail < 3)
	55	return 0;
	56
	57	ch2 = (*s)[1];
	58	if ((ch2 - offset) <= 0x20 \|\| (ch2 - offset) >= 0x7f)
d64b6ad0	59	return __UNKNOWN_10646_CHAR;
2b474353 UD	60
	61	ch3 = (*s)[2];
	62	if ((ch3 - offset) <= 0x20 \|\| (ch3 - offset) >= 0x7f)
d64b6ad0	63	return __UNKNOWN_10646_CHAR;
2b474353 UD	64
	65	idx = (ch2 - 0x21 - offset) * 94 + (ch3 - 0x21 - offset);
	66
289ac9dd	67	switch (ch - 0x20 - offset)
2b474353	68	{
289ac9dd	69	case 1:
b79f74cd	70	if (idx > 0x21f2)
d64b6ad0	71	return __UNKNOWN_10646_CHAR;
8619129f	72	result = __cns11643l1_to_ucs4_tab[idx];
289ac9dd UD	73	break;
289ac9dd UD	74	case 2:
2b474353	75	if (idx > 0x1de1)
d64b6ad0	76	return __UNKNOWN_10646_CHAR;
8619129f	77	result = __cns11643l2_to_ucs4_tab[idx];
289ac9dd UD	78	break;
289ac9dd UD	79	case 3:
2b474353	80	if (idx > 0x19bd)
d64b6ad0	81	return __UNKNOWN_10646_CHAR;
289ac9dd UD	82	result = __cns11643l3_to_ucs4_tab[idx];
	83	break;
	84	case 4:
	85	if (idx > 0x1c81)
	86	return __UNKNOWN_10646_CHAR;
	87	result = __cns11643l4_to_ucs4_tab[idx];
	88	break;
	89	case 5:
	90	if (idx > 0x219a)
	91	return __UNKNOWN_10646_CHAR;
	92	result = __cns11643l5_to_ucs4_tab[idx];
	93	break;
	94	case 6:
	95	if (idx > 0x18f3)
	96	return __UNKNOWN_10646_CHAR;
	97	result = __cns11643l6_to_ucs4_tab[idx];
	98	break;
	99	case 7:
	100	if (idx > 0x198a)
	101	return __UNKNOWN_10646_CHAR;
	102	result = __cns11643l7_to_ucs4_tab[idx];
	103	break;
	104	case 15:
	105	if (idx > 0x1c00)
	106	return __UNKNOWN_10646_CHAR;
	107	result = __cns11643l15_to_ucs4_tab[idx];
	108	break;
	109	default:
	110	return __UNKNOWN_10646_CHAR;
2b474353	111	}
2b474353 UD	112
	113	if (result != L'\0')
	114	(*s) += 3;
	115	else
d64b6ad0	116	result = __UNKNOWN_10646_CHAR;
2b474353 UD	117
	118	return result;
	119	}
	120
	121
	122	/* Tables for the UCS4 -> CNS conversion. */
8619129f UD	123	extern const char __cns11643l1_from_ucs4_tab1[][2];
	124	extern const char __cns11643l1_from_ucs4_tab2[][2];
	125	extern const char __cns11643l1_from_ucs4_tab3[][2];
	126	extern const char __cns11643l1_from_ucs4_tab4[][2];
	127	extern const char __cns11643l1_from_ucs4_tab5[][2];
	128	extern const char __cns11643l1_from_ucs4_tab6[][2];
	129	extern const char __cns11643l1_from_ucs4_tab7[][2];
	130	extern const char __cns11643l1_from_ucs4_tab8[][2];
	131	extern const char __cns11643l1_from_ucs4_tab9[][2];
	132	extern const char __cns11643l1_from_ucs4_tab10[][2];
	133	extern const char __cns11643l1_from_ucs4_tab11[][2];
	134	extern const char __cns11643l1_from_ucs4_tab12[][2];
	135	extern const char __cns11643l1_from_ucs4_tab13[][2];
	136	extern const char __cns11643l1_from_ucs4_tab14[][2];
289ac9dd UD	137	extern const char __cns11643_from_ucs4p0_tab[][3];
289ac9dd UD	138	extern const char __cns11643_from_ucs4p2_tab[][3];
93a568aa	139	extern const char __cns11643_from_ucs4p2c_tab[][3];
2b474353 UD	140
	141
	142	static inline size_t
dd9423a6	143	__attribute ((always_inline))
085a4412	144	ucs4_to_cns11643 (uint32_t wch, unsigned char *s, size_t avail)
2b474353 UD	145	{
	146	unsigned int ch = (unsigned int) wch;
	147	char buf[2];
8619129f	148	const char *cp = buf;
8c0b7170	149	size_t needed = 2;
2b474353	150
8619129f	151	switch (ch)
2b474353	152	{
8619129f UD	153	case 0xa7 ... 0xf7:
	154	cp = __cns11643l1_from_ucs4_tab1[ch - 0xa7];
	155	break;
	156	case 0x2c7 ... 0x2d9:
	157	cp = __cns11643l1_from_ucs4_tab2[ch - 0x2c7];
	158	break;
	159	case 0x391 ... 0x3c9:
	160	cp = __cns11643l1_from_ucs4_tab3[ch - 0x391];
	161	break;
	162	case 0x2013 ... 0x203e:
	163	cp = __cns11643l1_from_ucs4_tab4[ch - 0x2013];
	164	break;
	165	case 0x2103:
	166	cp = "\x22\x6a";
	167	break;
	168	case 0x2105:
	169	cp = "\x22\x22";
	170	break;
	171	case 0x2109:
	172	cp = "\x22\x6b";
	173	break;
9b26f5c4	174	case 0x2160 ... 0x2169:
2b474353 UD	175	buf[0] = '\x24';
2b474353 UD	176	buf[1] = '\x2b' + (ch - 0x2160);
8619129f UD	177	break;
8619129f UD	178	case 0x2170 ... 0x2179:
2b474353 UD	179	buf[0] = '\x26';
2b474353 UD	180	buf[1] = '\x35' + (ch - 0x2170);
8619129f UD	181	break;
	182	case 0x2190 ... 0x2199:
	183	cp = __cns11643l1_from_ucs4_tab5[ch - 0x2190];
	184	break;
	185	case 0x2215 ... 0x2267:
	186	cp = __cns11643l1_from_ucs4_tab6[ch - 0x2215];
	187	break;
	188	case 0x22a5:
	189	cp = "\x22\x47";
	190	break;
	191	case 0x22bf:
	192	cp = "\x22\x4a";
	193	break;
	194	case 0x2400 ... 0x2421:
	195	cp = __cns11643l1_from_ucs4_tab7[ch - 0x2400];
	196	break;
	197	case 0x2460 ... 0x247d:
	198	cp = __cns11643l1_from_ucs4_tab8[ch - 0x2460];
	199	break;
	200	case 0x2500 ... 0x2642:
	201	cp = __cns11643l1_from_ucs4_tab9[ch - 0x2500];
9b26f5c4	202	break;
8619129f UD	203	case 0x3000 ... 0x3029:
	204	cp = __cns11643l1_from_ucs4_tab10[ch - 0x3000];
	205	break;
	206	case 0x30fb:
	207	cp = "\x21\x26";
	208	break;
	209	case 0x3105 ... 0x3129:
2b474353	210	buf[0] = '\x25';
b79f74cd	211	buf[1] = '\x47' + (ch - 0x3105);
8619129f UD	212	break;
	213	case 0x32a3:
	214	cp = "\x22\x21";
	215	break;
	216	case 0x338e ... 0x33d5:
	217	cp = __cns11643l1_from_ucs4_tab11[ch - 0x338e];
	218	break;
	219	case 0x4e00 ... 0x9f9c:
	220	cp = __cns11643l1_from_ucs4_tab12[ch - 0x4e00];
b79f74cd UD	221	if (cp[0] != '\0')
	222	break;
	223	/* FALLTHROUGH. Let's try the other planes. */
289ac9dd	224	case 0x3400 ... 0x4dff:
b79f74cd UD	225	case 0x9f9d ... 0x9fa5:
	226	/* Let's try the other planes. */
	227	needed = 3;
289ac9dd	228	cp = __cns11643_from_ucs4p0_tab[ch - 0x3400];
8619129f	229	break;
93a568aa UD	230	case 0xfa28:
	231	needed = 3;
	232	cp = "\x0f\x58\x4c";
	233	break;
8619129f UD	234	case 0xfe30 ... 0xfe6b:
	235	cp = __cns11643l1_from_ucs4_tab13[ch - 0xfe30];
	236	break;
	237	case 0xff01 ... 0xff5d:
	238	cp = __cns11643l1_from_ucs4_tab14[ch - 0xff01];
	239	break;
	240	case 0xffe0:
	241	cp = "\x22\x66";
	242	break;
	243	case 0xffe1:
	244	cp = "\x22\x67";
	245	break;
	246	case 0xffe5:
	247	cp = "\x22\x64";
	248	break;
289ac9dd UD	249	case 0x20000 ... 0x2a6d6:
	250	needed = 3;
	251	cp = __cns11643_from_ucs4p2_tab[ch - 0x20000];
	252	break;
93a568aa UD	253	case 0x2f800 ... 0x2fa1d:
	254	needed = 3;
	255	cp = __cns11643_from_ucs4p2c_tab[ch - 0x2f800];
	256	break;
8619129f	257	default:
d64b6ad0	258	return __UNKNOWN_10646_CHAR;
2b474353	259	}
2b474353 UD	260
2b474353 UD	261	if (cp[0] == '\0')
d64b6ad0	262	return __UNKNOWN_10646_CHAR;
2b474353 UD	263
	264	if (avail < needed)
	265	return 0;
	266
	267	s[0] = cp[0];
	268	s[1] = cp[1];
	269	if (needed == 3)
	270	s[2] = cp[2];
	271
	272	return needed;
	273	}