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Diffstat (limited to 'iconvdata/euc-jisx0213.c')
| -rw-r--r-- | iconvdata/euc-jisx0213.c | 439 |
1 files changed, 439 insertions, 0 deletions
diff --git a/iconvdata/euc-jisx0213.c b/iconvdata/euc-jisx0213.c new file mode 100644 index 0000000000..b0836b173d --- /dev/null +++ b/iconvdata/euc-jisx0213.c @@ -0,0 +1,439 @@ +/* Conversion from and to EUC-JISX0213. + Copyright (C) 2002 Free Software Foundation, Inc. + This file is part of the GNU C Library. + Contributed by Bruno Haible <bruno@clisp.org>, 2002. + + 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 <dlfcn.h> +#include <stdint.h> +#include <gconv.h> + +/* The structure of EUC-JISX0213 is as follows: + + 0x00..0x7F: ASCII + + 0x8E{A1..FE}: JISX0201 Katakana, with prefix 0x8E, offset by +0x80. + + 0x8F{A1..FE}{A1..FE}: JISX0213 plane 2, with prefix 0x8F, offset by +0x8080. + + 0x{A1..FE}{A1..FE}: JISX0213 plane 1, offset by +0x8080. + + Note that some JISX0213 characters are not contained in Unicode 3.2 + and are therefore best represented as sequences of Unicode characters. +*/ + +#include "jisx0213.h" + +/* Definitions used in the body of the `gconv' function. */ +#define CHARSET_NAME "EUC-JISX0213//" +#define FROM_LOOP from_euc_jisx0213 +#define TO_LOOP to_euc_jisx0213 +#define DEFINE_INIT 1 +#define DEFINE_FINI 1 +#define MIN_NEEDED_FROM 1 +#define MAX_NEEDED_FROM 3 +#define MIN_NEEDED_TO 4 +#define PREPARE_LOOP \ + int saved_state; \ + int *statep = &data->__statep->__count; +#define EXTRA_LOOP_ARGS , statep + + +/* Since we might have to reset input pointer we must be able to save + and restore the state. */ +#define SAVE_RESET_STATE(Save) \ + if (Save) \ + saved_state = *statep; \ + else \ + *statep = saved_state + + +/* During EUC-JISX0213 to UCS-4 conversion, the COUNT element of the state + contains the last UCS-4 character, shifted by 3 bits. + During UCS-4 to EUC-JISX0213 conversion, the COUNT element of the state + contains the last two bytes to be output, shifted by 3 bits. */ + +/* Since this is a stateful encoding we have to provide code which resets + the output state to the initial state. This has to be done during the + flushing. */ +#define EMIT_SHIFT_TO_INIT \ + if (data->__statep->__count != 0) \ + { \ + if (FROM_DIRECTION) \ + { \ + if (__builtin_expect (outbuf + 4 <= outend, 1)) \ + { \ + /* Write out the last character. */ \ + *((uint32_t *) outbuf)++ = data->__statep->__count >> 3; \ + data->__statep->__count = 0; \ + } \ + else \ + /* We don't have enough room in the output buffer. */ \ + status = __GCONV_FULL_OUTPUT; \ + } \ + else \ + { \ + if (__builtin_expect (outbuf + 2 <= outend, 1)) \ + { \ + /* Write out the last character. */ \ + uint32_t lasttwo = data->__statep->__count >> 3; \ + *outbuf++ = (lasttwo >> 8) & 0xff; \ + *outbuf++ = lasttwo & 0xff; \ + data->__statep->__count = 0; \ + } \ + else \ + /* We don't have enough room in the output buffer. */ \ + status = __GCONV_FULL_OUTPUT; \ + } \ + } + + +/* First define the conversion function from EUC-JISX0213 to UCS-4. */ +#define MIN_NEEDED_INPUT MIN_NEEDED_FROM +#define MAX_NEEDED_INPUT MAX_NEEDED_FROM +#define MIN_NEEDED_OUTPUT MIN_NEEDED_TO +#define LOOPFCT FROM_LOOP +#define BODY \ + { \ + uint32_t ch; \ + \ + /* Determine whether there is a buffered character pending. */ \ + ch = *statep >> 3; \ + if (__builtin_expect (ch == 0, 1)) \ + { \ + /* No - so look at the next input byte. */ \ + ch = *inptr; \ + if (ch < 0x80) \ + /* Plain ASCII character. */ \ + ++inptr; \ + else if ((ch >= 0xa1 && ch <= 0xfe) || ch == 0x8e || ch == 0x8f) \ + { \ + /* Two or three byte character. */ \ + uint32_t ch2; \ + \ + if (__builtin_expect (inptr + 1 >= inend, 0)) \ + { \ + /* The second byte is not available. */ \ + result = __GCONV_INCOMPLETE_INPUT; \ + break; \ + } \ + \ + ch2 = inptr[1]; \ + \ + /* The second byte must be >= 0xa1 and <= 0xfe. */ \ + if (__builtin_expect (ch2 < 0xa1 || ch2 > 0xfe, 0)) \ + { \ + /* This is an illegal character. */ \ + if (! ignore_errors_p ()) \ + { \ + result = __GCONV_ILLEGAL_INPUT; \ + break; \ + } \ + \ + ++inptr; \ + ++*irreversible; \ + break; \ + } \ + \ + if (ch == 0x8e) \ + { \ + /* Half-width katakana. */ \ + if (__builtin_expect (ch2 > 0xdf, 0)) \ + { \ + /* This is an illegal character. */ \ + if (! ignore_errors_p ()) \ + { \ + result = __GCONV_ILLEGAL_INPUT; \ + break; \ + } \ + \ + ++inptr; \ + ++*irreversible; \ + break; \ + } \ + \ + ch = ch2 + 0xfec0; \ + inptr += 2; \ + } \ + else \ + { \ + const unsigned char *endp; \ + \ + if (ch == 0x8f) \ + { \ + /* JISX 0213 plane 2. */ \ + uint32_t ch3; \ + \ + if (__builtin_expect (inptr + 2 >= inend, 0)) \ + { \ + /* The third byte is not available. */ \ + result = __GCONV_INCOMPLETE_INPUT; \ + break; \ + } \ + \ + ch3 = inptr[2]; \ + endp = inptr + 3; \ + \ + ch = jisx0213_to_ucs4 (0x200 - 0x80 + ch2, ch3 ^ 0x80); \ + } \ + else \ + { \ + /* JISX 0213 plane 1. */ \ + endp = inptr + 2; \ + \ + ch = jisx0213_to_ucs4 (0x100 - 0x80 + ch, ch2 ^ 0x80); \ + } \ + \ + if (ch == 0) \ + { \ + /* This is an illegal character. */ \ + if (! ignore_errors_p ()) \ + { \ + result = __GCONV_ILLEGAL_INPUT; \ + break; \ + } \ + \ + ++inptr; \ + ++*irreversible; \ + break; \ + } \ + \ + inptr = endp; \ + \ + if (ch < 0x80) \ + { \ + /* It's a combining character. */ \ + uint32_t u1 = __jisx0213_to_ucs_combining[ch - 1][0]; \ + uint32_t u2 = __jisx0213_to_ucs_combining[ch - 1][1]; \ + \ + /* See whether we have room for two characters. */ \ + if (outptr + 8 <= outend) \ + { \ + put32 (outptr, u1); \ + outptr += 4; \ + put32 (outptr, u2); \ + outptr += 4; \ + continue; \ + } \ + \ + /* Otherwise store only the first character now, and \ + put the second one into the queue. */ \ + ch = u1; \ + *statep = u2 << 3; \ + } \ + } \ + } \ + else \ + { \ + /* This is illegal. */ \ + if (! ignore_errors_p ()) \ + { \ + result = __GCONV_ILLEGAL_INPUT; \ + break; \ + } \ + \ + ++inptr; \ + ++*irreversible; \ + continue; \ + } \ + } \ + \ + put32 (outptr, ch); \ + outptr += 4; \ + } +#define LOOP_NEED_FLAGS +#define EXTRA_LOOP_DECLS , int *statep +#include <iconv/loop.c> + + +/* Next, define the other direction, from UCS-4 to EUC-JISX0213. */ + +/* Composition tables for each of the relevant combining characters. */ +static const struct +{ + uint16_t base; + uint16_t composed; +} comp_table_data[] = +{ +#define COMP_TABLE_IDX_02E5 0 +#define COMP_TABLE_LEN_02E5 1 + { 0xabe4, 0xabe5 }, /* 0x12B65 = 0x12B64 U+02E5 */ +#define COMP_TABLE_IDX_02E9 (COMP_TABLE_IDX_02E5 + COMP_TABLE_LEN_02E5) +#define COMP_TABLE_LEN_02E9 1 + { 0xabe0, 0xabe6 }, /* 0x12B66 = 0x12B60 U+02E9 */ +#define COMP_TABLE_IDX_0300 (COMP_TABLE_IDX_02E9 + COMP_TABLE_LEN_02E9) +#define COMP_TABLE_LEN_0300 5 + { 0xa9dc, 0xabc4 }, /* 0x12B44 = 0x1295C U+0300 */ + { 0xabb8, 0xabc8 }, /* 0x12B48 = 0x12B38 U+0300 */ + { 0xabb7, 0xabca }, /* 0x12B4A = 0x12B37 U+0300 */ + { 0xabb0, 0xabcc }, /* 0x12B4C = 0x12B30 U+0300 */ + { 0xabc3, 0xabce }, /* 0x12B4E = 0x12B43 U+0300 */ +#define COMP_TABLE_IDX_0301 (COMP_TABLE_IDX_0300 + COMP_TABLE_LEN_0300) +#define COMP_TABLE_LEN_0301 4 + { 0xabb8, 0xabc9 }, /* 0x12B49 = 0x12B38 U+0301 */ + { 0xabb7, 0xabcb }, /* 0x12B4B = 0x12B37 U+0301 */ + { 0xabb0, 0xabcd }, /* 0x12B4D = 0x12B30 U+0301 */ + { 0xabc3, 0xabcf }, /* 0x12B4F = 0x12B43 U+0301 */ +#define COMP_TABLE_IDX_309A (COMP_TABLE_IDX_0301 + COMP_TABLE_LEN_0301) +#define COMP_TABLE_LEN_309A 14 + { 0xa4ab, 0xa4f7 }, /* 0x12477 = 0x1242B U+309A */ + { 0xa4ad, 0xa4f8 }, /* 0x12478 = 0x1242D U+309A */ + { 0xa4af, 0xa4f9 }, /* 0x12479 = 0x1242F U+309A */ + { 0xa4b1, 0xa4fa }, /* 0x1247A = 0x12431 U+309A */ + { 0xa4b3, 0xa4fb }, /* 0x1247B = 0x12433 U+309A */ + { 0xa5ab, 0xa5f7 }, /* 0x12577 = 0x1252B U+309A */ + { 0xa5ad, 0xa5f8 }, /* 0x12578 = 0x1252D U+309A */ + { 0xa5af, 0xa5f9 }, /* 0x12579 = 0x1252F U+309A */ + { 0xa5b1, 0xa5fa }, /* 0x1257A = 0x12531 U+309A */ + { 0xa5b3, 0xa5fb }, /* 0x1257B = 0x12533 U+309A */ + { 0xa5bb, 0xa5fc }, /* 0x1257C = 0x1253B U+309A */ + { 0xa5c4, 0xa5fd }, /* 0x1257D = 0x12544 U+309A */ + { 0xa5c8, 0xa5fe }, /* 0x1257E = 0x12548 U+309A */ + { 0xa6f5, 0xa6f8 }, /* 0x12678 = 0x12675 U+309A */ +}; + +#define MIN_NEEDED_INPUT MIN_NEEDED_TO +#define MIN_NEEDED_OUTPUT MIN_NEEDED_FROM +#define MAX_NEEDED_OUTPUT MAX_NEEDED_FROM +#define LOOPFCT TO_LOOP +#define BODY \ + { \ + uint32_t ch = get32 (inptr); \ + \ + if ((*statep >> 3) != 0) \ + { \ + /* Attempt to combine the last character with this one. */ \ + uint16_t lasttwo = *statep >> 3; \ + unsigned int idx; \ + unsigned int len; \ + \ + if (ch == 0x02e5) \ + idx = COMP_TABLE_IDX_02E5, len = COMP_TABLE_LEN_02E5; \ + else if (ch == 0x02e9) \ + idx = COMP_TABLE_IDX_02E9, len = COMP_TABLE_LEN_02E9; \ + else if (ch == 0x0300) \ + idx = COMP_TABLE_IDX_0300, len = COMP_TABLE_LEN_0300; \ + else if (ch == 0x0301) \ + idx = COMP_TABLE_IDX_0301, len = COMP_TABLE_LEN_0301; \ + else if (ch == 0x309a) \ + idx = COMP_TABLE_IDX_309A, len = COMP_TABLE_LEN_309A; \ + else \ + goto not_combining; \ + \ + do \ + if (comp_table_data[idx].base == lasttwo) \ + break; \ + while (++idx, --len > 0); \ + \ + if (len > 0) \ + { \ + /* Output the combined character. */ \ + if (__builtin_expect (outptr + 1 >= outend, 0)) \ + { \ + result = __GCONV_FULL_OUTPUT; \ + break; \ + } \ + lasttwo = comp_table_data[idx].composed; \ + *outptr++ = (lasttwo >> 8) & 0xff; \ + *outptr++ = lasttwo & 0xff; \ + *statep = 0; \ + inptr += 4; \ + continue; \ + } \ + \ + not_combining: \ + /* Output the buffered character. */ \ + if (__builtin_expect (outptr + 1 >= outend, 0)) \ + { \ + result = __GCONV_FULL_OUTPUT; \ + break; \ + } \ + *outptr++ = (lasttwo >> 8) & 0xff; \ + *outptr++ = lasttwo & 0xff; \ + *statep = 0; \ + continue; \ + } \ + \ + if (ch < 0x80) \ + /* Plain ASCII character. */ \ + *outptr++ = ch; \ + else if (ch >= 0xff61 && ch <= 0xff9f) \ + { \ + /* Half-width katakana. */ \ + if (__builtin_expect (outptr + 1 >= outend, 0)) \ + { \ + result = __GCONV_FULL_OUTPUT; \ + break; \ + } \ + *outptr++ = 0x8e; \ + *outptr++ = ch - 0xfec0; \ + } \ + else \ + { \ + ch = ucs4_to_jisx0213 (ch); \ + if (ch == 0) \ + { \ + UNICODE_TAG_HANDLER (ch, 4); \ + \ + /* Illegal character. */ \ + STANDARD_ERR_HANDLER (4); \ + } \ + \ + if (ch & 0x0080) \ + { \ + /* A possible match in comp_table_data. We have to buffer it. */\ + \ + /* We know it's a JISX 0213 plane 1 character. */ \ + assert ((ch & 0x8000) == 0); \ + \ + *statep = (ch | 0x8080) << 3; \ + inptr += 4; \ + continue; \ + } \ + \ + if (ch & 0x8000) \ + { \ + /* JISX 0213 plane 2. */ \ + if (__builtin_expect (outptr + 2 >= outend, 0)) \ + { \ + result = __GCONV_FULL_OUTPUT; \ + break; \ + } \ + *outptr++ = 0x8f; \ + } \ + else \ + { \ + /* JISX 0213 plane 1. */ \ + if (__builtin_expect (outptr + 1 >= outend, 0)) \ + { \ + result = __GCONV_FULL_OUTPUT; \ + break; \ + } \ + } \ + *outptr++ = (ch >> 8) | 0x80; \ + *outptr++ = (ch & 0xff) | 0x80; \ + } \ + \ + inptr += 4; \ + } +#define LOOP_NEED_FLAGS +#define EXTRA_LOOP_DECLS , int *statep +#include <iconv/loop.c> + + +/* Now define the toplevel functions. */ +#include <iconv/skeleton.c> |