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

/* Access functions for CNS 11643 handling.
   Copyright (C) 1998,1999,2000,2001,2002,2003,2007
   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, write to the Free
   Software Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA
   02111-1307 USA.  */

#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.
085a4412 UD	2	Copyright (C) 1998,1999,2000,2001,2002,2003,2007
085a4412 UD	3	Free Software Foundation, Inc.
2b474353 UD	4	This file is part of the GNU C Library.
	5	Contributed by Ulrich Drepper <drepper@cygnus.com>, 1998.
	6
	7	The GNU C Library is free software; you can redistribute it and/or
41bdb6e2 AJ	8	modify it under the terms of the GNU Lesser General Public
	9	License as published by the Free Software Foundation; either
	10	version 2.1 of the License, or (at your option) any later version.
2b474353 UD	11
	12	The GNU C Library is distributed in the hope that it will be useful,
	13	but WITHOUT ANY WARRANTY; without even the implied warranty of
	14	MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
41bdb6e2	15	Lesser General Public License for more details.
2b474353	16
41bdb6e2 AJ	17	You should have received a copy of the GNU Lesser General Public
	18	License along with the GNU C Library; if not, write to the Free
	19	Software Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA
	20	02111-1307 USA. */
2b474353 UD	21
	22	#include <stdint.h>
	23
289ac9dd	24
755104ed UD	25	/* Table for CNS 11643, plane 1 to UCS4 conversion. */
755104ed UD	26	extern const uint16_t __cns11643l1_to_ucs4_tab[];
2b474353	27	/* Table for CNS 11643, plane 2 to UCS4 conversion. */
8619129f	28	extern const uint16_t __cns11643l2_to_ucs4_tab[];
289ac9dd UD	29	/* Table for CNS 11643, plane 3 to UCS4 conversion. */
	30	extern const uint32_t __cns11643l3_to_ucs4_tab[];
	31	/* Table for CNS 11643, plane 4 to UCS4 conversion. */
	32	extern const uint32_t __cns11643l4_to_ucs4_tab[];
	33	/* Table for CNS 11643, plane 5 to UCS4 conversion. */
	34	extern const uint32_t __cns11643l5_to_ucs4_tab[];
	35	/* Table for CNS 11643, plane 6 to UCS4 conversion. */
	36	extern const uint32_t __cns11643l6_to_ucs4_tab[];
	37	/* Table for CNS 11643, plane 7 to UCS4 conversion. */
	38	extern const uint32_t __cns11643l7_to_ucs4_tab[];
	39	/* Table for CNS 11643, plane 15 (old) to UCS4 conversion. */
	40	extern const uint32_t __cns11643l15_to_ucs4_tab[];
2b474353 UD	41
2b474353 UD	42
9b26f5c4	43	static inline uint32_t
dd9423a6	44	__attribute ((always_inline))
085a4412	45	cns11643_to_ucs4 (const unsigned char **s, size_t avail, unsigned char offset)
2b474353 UD	46	{
	47	unsigned char ch = (s);
	48	unsigned char ch2;
	49	unsigned char ch3;
9b26f5c4	50	uint32_t result;
2b474353 UD	51	int idx;
	52
	53	if (ch < offset \|\| (ch - offset) <= 0x20 \|\| (ch - offset) > 0x30)
d64b6ad0	54	return __UNKNOWN_10646_CHAR;
2b474353 UD	55
	56	if (avail < 3)
	57	return 0;
	58
	59	ch2 = (*s)[1];
	60	if ((ch2 - offset) <= 0x20 \|\| (ch2 - offset) >= 0x7f)
d64b6ad0	61	return __UNKNOWN_10646_CHAR;
2b474353 UD	62
	63	ch3 = (*s)[2];
	64	if ((ch3 - offset) <= 0x20 \|\| (ch3 - offset) >= 0x7f)
d64b6ad0	65	return __UNKNOWN_10646_CHAR;
2b474353 UD	66
	67	idx = (ch2 - 0x21 - offset) * 94 + (ch3 - 0x21 - offset);
	68
289ac9dd	69	switch (ch - 0x20 - offset)
2b474353	70	{
289ac9dd	71	case 1:
b79f74cd	72	if (idx > 0x21f2)
d64b6ad0	73	return __UNKNOWN_10646_CHAR;
8619129f	74	result = __cns11643l1_to_ucs4_tab[idx];
289ac9dd UD	75	break;
289ac9dd UD	76	case 2:
2b474353	77	if (idx > 0x1de1)
d64b6ad0	78	return __UNKNOWN_10646_CHAR;
8619129f	79	result = __cns11643l2_to_ucs4_tab[idx];
289ac9dd UD	80	break;
289ac9dd UD	81	case 3:
2b474353	82	if (idx > 0x19bd)
d64b6ad0	83	return __UNKNOWN_10646_CHAR;
289ac9dd UD	84	result = __cns11643l3_to_ucs4_tab[idx];
	85	break;
	86	case 4:
	87	if (idx > 0x1c81)
	88	return __UNKNOWN_10646_CHAR;
	89	result = __cns11643l4_to_ucs4_tab[idx];
	90	break;
	91	case 5:
	92	if (idx > 0x219a)
	93	return __UNKNOWN_10646_CHAR;
	94	result = __cns11643l5_to_ucs4_tab[idx];
	95	break;
	96	case 6:
	97	if (idx > 0x18f3)
	98	return __UNKNOWN_10646_CHAR;
	99	result = __cns11643l6_to_ucs4_tab[idx];
	100	break;
	101	case 7:
	102	if (idx > 0x198a)
	103	return __UNKNOWN_10646_CHAR;
	104	result = __cns11643l7_to_ucs4_tab[idx];
	105	break;
	106	case 15:
	107	if (idx > 0x1c00)
	108	return __UNKNOWN_10646_CHAR;
	109	result = __cns11643l15_to_ucs4_tab[idx];
	110	break;
	111	default:
	112	return __UNKNOWN_10646_CHAR;
2b474353	113	}
2b474353 UD	114
	115	if (result != L'\0')
	116	(*s) += 3;
	117	else
d64b6ad0	118	result = __UNKNOWN_10646_CHAR;
2b474353 UD	119
	120	return result;
	121	}
	122
	123
	124	/* Tables for the UCS4 -> CNS conversion. */
8619129f UD	125	extern const char __cns11643l1_from_ucs4_tab1[][2];
	126	extern const char __cns11643l1_from_ucs4_tab2[][2];
	127	extern const char __cns11643l1_from_ucs4_tab3[][2];
	128	extern const char __cns11643l1_from_ucs4_tab4[][2];
	129	extern const char __cns11643l1_from_ucs4_tab5[][2];
	130	extern const char __cns11643l1_from_ucs4_tab6[][2];
	131	extern const char __cns11643l1_from_ucs4_tab7[][2];
	132	extern const char __cns11643l1_from_ucs4_tab8[][2];
	133	extern const char __cns11643l1_from_ucs4_tab9[][2];
	134	extern const char __cns11643l1_from_ucs4_tab10[][2];
	135	extern const char __cns11643l1_from_ucs4_tab11[][2];
	136	extern const char __cns11643l1_from_ucs4_tab12[][2];
	137	extern const char __cns11643l1_from_ucs4_tab13[][2];
	138	extern const char __cns11643l1_from_ucs4_tab14[][2];
289ac9dd UD	139	extern const char __cns11643_from_ucs4p0_tab[][3];
289ac9dd UD	140	extern const char __cns11643_from_ucs4p2_tab[][3];
93a568aa	141	extern const char __cns11643_from_ucs4p2c_tab[][3];
2b474353 UD	142
	143
	144	static inline size_t
dd9423a6	145	__attribute ((always_inline))
085a4412	146	ucs4_to_cns11643 (uint32_t wch, unsigned char *s, size_t avail)
2b474353 UD	147	{
	148	unsigned int ch = (unsigned int) wch;
	149	char buf[2];
8619129f	150	const char *cp = buf;
8c0b7170	151	size_t needed = 2;
2b474353	152
8619129f	153	switch (ch)
2b474353	154	{
8619129f UD	155	case 0xa7 ... 0xf7:
	156	cp = __cns11643l1_from_ucs4_tab1[ch - 0xa7];
	157	break;
	158	case 0x2c7 ... 0x2d9:
	159	cp = __cns11643l1_from_ucs4_tab2[ch - 0x2c7];
	160	break;
	161	case 0x391 ... 0x3c9:
	162	cp = __cns11643l1_from_ucs4_tab3[ch - 0x391];
	163	break;
	164	case 0x2013 ... 0x203e:
	165	cp = __cns11643l1_from_ucs4_tab4[ch - 0x2013];
	166	break;
	167	case 0x2103:
	168	cp = "\x22\x6a";
	169	break;
	170	case 0x2105:
	171	cp = "\x22\x22";
	172	break;
	173	case 0x2109:
	174	cp = "\x22\x6b";
	175	break;
9b26f5c4	176	case 0x2160 ... 0x2169:
2b474353 UD	177	buf[0] = '\x24';
2b474353 UD	178	buf[1] = '\x2b' + (ch - 0x2160);
8619129f UD	179	break;
8619129f UD	180	case 0x2170 ... 0x2179:
2b474353 UD	181	buf[0] = '\x26';
2b474353 UD	182	buf[1] = '\x35' + (ch - 0x2170);
8619129f UD	183	break;
	184	case 0x2190 ... 0x2199:
	185	cp = __cns11643l1_from_ucs4_tab5[ch - 0x2190];
	186	break;
	187	case 0x2215 ... 0x2267:
	188	cp = __cns11643l1_from_ucs4_tab6[ch - 0x2215];
	189	break;
	190	case 0x22a5:
	191	cp = "\x22\x47";
	192	break;
	193	case 0x22bf:
	194	cp = "\x22\x4a";
	195	break;
	196	case 0x2400 ... 0x2421:
	197	cp = __cns11643l1_from_ucs4_tab7[ch - 0x2400];
	198	break;
	199	case 0x2460 ... 0x247d:
	200	cp = __cns11643l1_from_ucs4_tab8[ch - 0x2460];
	201	break;
	202	case 0x2500 ... 0x2642:
	203	cp = __cns11643l1_from_ucs4_tab9[ch - 0x2500];
9b26f5c4	204	break;
8619129f UD	205	case 0x3000 ... 0x3029:
	206	cp = __cns11643l1_from_ucs4_tab10[ch - 0x3000];
	207	break;
	208	case 0x30fb:
	209	cp = "\x21\x26";
	210	break;
	211	case 0x3105 ... 0x3129:
2b474353	212	buf[0] = '\x25';
b79f74cd	213	buf[1] = '\x47' + (ch - 0x3105);
8619129f UD	214	break;
	215	case 0x32a3:
	216	cp = "\x22\x21";
	217	break;
	218	case 0x338e ... 0x33d5:
	219	cp = __cns11643l1_from_ucs4_tab11[ch - 0x338e];
	220	break;
	221	case 0x4e00 ... 0x9f9c:
	222	cp = __cns11643l1_from_ucs4_tab12[ch - 0x4e00];
b79f74cd UD	223	if (cp[0] != '\0')
	224	break;
	225	/* FALLTHROUGH. Let's try the other planes. */
289ac9dd	226	case 0x3400 ... 0x4dff:
b79f74cd UD	227	case 0x9f9d ... 0x9fa5:
	228	/* Let's try the other planes. */
	229	needed = 3;
289ac9dd	230	cp = __cns11643_from_ucs4p0_tab[ch - 0x3400];
8619129f	231	break;
93a568aa UD	232	case 0xfa28:
	233	needed = 3;
	234	cp = "\x0f\x58\x4c";
	235	break;
8619129f UD	236	case 0xfe30 ... 0xfe6b:
	237	cp = __cns11643l1_from_ucs4_tab13[ch - 0xfe30];
	238	break;
	239	case 0xff01 ... 0xff5d:
	240	cp = __cns11643l1_from_ucs4_tab14[ch - 0xff01];
	241	break;
	242	case 0xffe0:
	243	cp = "\x22\x66";
	244	break;
	245	case 0xffe1:
	246	cp = "\x22\x67";
	247	break;
	248	case 0xffe5:
	249	cp = "\x22\x64";
	250	break;
289ac9dd UD	251	case 0x20000 ... 0x2a6d6:
	252	needed = 3;
	253	cp = __cns11643_from_ucs4p2_tab[ch - 0x20000];
	254	break;
93a568aa UD	255	case 0x2f800 ... 0x2fa1d:
	256	needed = 3;
	257	cp = __cns11643_from_ucs4p2c_tab[ch - 0x2f800];
	258	break;
8619129f	259	default:
d64b6ad0	260	return __UNKNOWN_10646_CHAR;
2b474353	261	}
2b474353 UD	262
2b474353 UD	263	if (cp[0] == '\0')
d64b6ad0	264	return __UNKNOWN_10646_CHAR;
2b474353 UD	265
	266	if (avail < needed)
	267	return 0;
	268
	269	s[0] = cp[0];
	270	s[1] = cp[1];
	271	if (needed == 3)
	272	s[2] = cp[2];
	273
	274	return needed;
	275	}