diff options
Diffstat (limited to 'iconvdata/cp1255.c')
| -rw-r--r-- | iconvdata/cp1255.c | 532 |
1 files changed, 525 insertions, 7 deletions
diff --git a/iconvdata/cp1255.c b/iconvdata/cp1255.c index b9e6ac9bc9..127f8be406 100644 --- a/iconvdata/cp1255.c +++ b/iconvdata/cp1255.c @@ -1,7 +1,8 @@ /* Conversion from and to CP1255. - Copyright (C) 1998 Free Software Foundation, Inc. + Copyright (C) 1998, 2001 Free Software Foundation, Inc. This file is part of the GNU C Library. - Contributed by Ulrich Drepper <drepper@cygnus.com>, 1998. + Contributed by Ulrich Drepper <drepper@cygnus.com>, 1998, + and Bruno Haible <haible@clisp.cons.org>, 2001. The GNU C Library is free software; you can redistribute it and/or modify it under the terms of the GNU Library General Public License as @@ -18,12 +19,529 @@ write to the Free Software Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA. */ +#include <dlfcn.h> #include <stdint.h> +#include <assert.h> -/* Get the conversion table. */ -#define TABLES <cp1255.h> +#define NELEMS(arr) (sizeof (arr) / sizeof (arr[0])) -#define CHARSET_NAME "CP1255//" -#define HAS_HOLES 1 /* Not all 256 character are defined. */ +/* Definitions used in the body of the `gconv' function. */ +#define CHARSET_NAME "CP1255//" +#define FROM_LOOP from_cp1255 +#define TO_LOOP to_cp1255 +#define DEFINE_INIT 1 +#define DEFINE_FINI 1 +#define MIN_NEEDED_FROM 1 +#define MAX_NEEDED_FROM 1 +#define MIN_NEEDED_TO 4 +#define MAX_NEEDED_TO 4 +#define PREPARE_LOOP \ + int saved_state; \ + int *statep = &data->__statep->__count; +#define EXTRA_LOOP_ARGS , statep -#include <8bit-gap.c> + +/* 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 CP1255 to UCS4 conversion, the COUNT element of the state + contains the last UCS4 character, 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 \ + /* We don't use shift states in the TO_DIRECTION. */ \ + data->__statep->__count = 0; \ + } + + +/* First define the conversion function from CP1255 to UCS4. */ + +static const uint16_t to_ucs4[128] = { + /* 0x80 */ + 0x20AC, 0, 0x201A, 0x0192, 0x201E, 0x2026, 0x2020, 0x2021, + 0x02C6, 0x2030, 0, 0x2039, 0, 0, 0, 0, + /* 0x90 */ + 0, 0x2018, 0x2019, 0x201C, 0x201D, 0x2022, 0x2013, 0x2014, + 0x02DC, 0x2122, 0, 0x203A, 0, 0, 0, 0, + /* 0xA0 */ + 0x00A0, 0x00A1, 0x00A2, 0x00A3, 0x20AA, 0x00A5, 0x00A6, 0x00A7, + 0x00A8, 0x00A9, 0x00D7, 0x00AB, 0x00AC, 0x00AD, 0x00AE, 0x00AF, + /* 0xB0 */ + 0x00B0, 0x00B1, 0x00B2, 0x00B3, 0x00B4, 0x00B5, 0x00B6, 0x00B7, + 0x00B8, 0x00B9, 0x00F7, 0x00BB, 0x00BC, 0x00BD, 0x00BE, 0x00BF, + /* 0xC0 */ + 0x05B0, 0x05B1, 0x05B2, 0x05B3, 0x05B4, 0x05B5, 0x05B6, 0x05B7, + 0x05B8, 0x05B9, 0, 0x05BB, 0x05BC, 0x05BD, 0x05BE, 0x05BF, + /* 0xD0 */ + 0x05C0, 0x05C1, 0x05C2, 0x05C3, 0x05F0, 0x05F1, 0x05F2, 0x05F3, + 0x05F4, 0, 0, 0, 0, 0, 0, 0, + /* 0xE0 */ + 0x05D0, 0x05D1, 0x05D2, 0x05D3, 0x05D4, 0x05D5, 0x05D6, 0x05D7, + 0x05D8, 0x05D9, 0x05DA, 0x05DB, 0x05DC, 0x05DD, 0x05DE, 0x05DF, + /* 0xF0 */ + 0x05E0, 0x05E1, 0x05E2, 0x05E3, 0x05E4, 0x05E5, 0x05E6, 0x05E7, + 0x05E8, 0x05E9, 0x05EA, 0, 0, 0x200E, 0x200F, 0, +}; + +/* CP1255 contains eight combining characters: + 0x05b4, 0x05b7, 0x05b8, 0x05b9, 0x05bc, 0x05bf, 0x05c1, 0x05c2. */ + +/* 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_05B4 0 +#define COMP_TABLE_LEN_05B4 1 + { 0x05D9, 0xFB1D }, +#define COMP_TABLE_IDX_05B7 (COMP_TABLE_IDX_05B4 + COMP_TABLE_LEN_05B4) +#define COMP_TABLE_LEN_05B7 2 + { 0x05D0, 0xFB2E }, + { 0x05F2, 0xFB1F }, +#define COMP_TABLE_IDX_05B8 (COMP_TABLE_IDX_05B7 + COMP_TABLE_LEN_05B7) +#define COMP_TABLE_LEN_05B8 1 + { 0x05D0, 0xFB2F }, +#define COMP_TABLE_IDX_05B9 (COMP_TABLE_IDX_05B8 + COMP_TABLE_LEN_05B8) +#define COMP_TABLE_LEN_05B9 1 + { 0x05D5, 0xFB4B }, +#define COMP_TABLE_IDX_05BC (COMP_TABLE_IDX_05B9 + COMP_TABLE_LEN_05B9) +#define COMP_TABLE_LEN_05BC 24 + { 0x05D0, 0xFB30 }, + { 0x05D1, 0xFB31 }, + { 0x05D2, 0xFB32 }, + { 0x05D3, 0xFB33 }, + { 0x05D4, 0xFB34 }, + { 0x05D5, 0xFB35 }, + { 0x05D6, 0xFB36 }, + { 0x05D8, 0xFB38 }, + { 0x05D9, 0xFB39 }, + { 0x05DA, 0xFB3A }, + { 0x05DB, 0xFB3B }, + { 0x05DC, 0xFB3C }, + { 0x05DE, 0xFB3E }, + { 0x05E0, 0xFB40 }, + { 0x05E1, 0xFB41 }, + { 0x05E3, 0xFB43 }, + { 0x05E4, 0xFB44 }, + { 0x05E6, 0xFB46 }, + { 0x05E7, 0xFB47 }, + { 0x05E8, 0xFB48 }, + { 0x05E9, 0xFB49 }, + { 0x05EA, 0xFB4A }, + { 0xFB2A, 0xFB2C }, + { 0xFB2B, 0xFB2D }, +#define COMP_TABLE_IDX_05BF (COMP_TABLE_IDX_05BC + COMP_TABLE_LEN_05BC) +#define COMP_TABLE_LEN_05BF 3 + { 0x05D1, 0xFB4C }, + { 0x05DB, 0xFB4D }, + { 0x05E4, 0xFB4E }, +#define COMP_TABLE_IDX_05C1 (COMP_TABLE_IDX_05BF + COMP_TABLE_LEN_05BF) +#define COMP_TABLE_LEN_05C1 2 + { 0x05E9, 0xFB2A }, + { 0xFB49, 0xFB2C }, +#define COMP_TABLE_IDX_05C2 (COMP_TABLE_IDX_05C1 + COMP_TABLE_LEN_05C1) +#define COMP_TABLE_LEN_05C2 2 + { 0x05E9, 0xFB2B }, + { 0xFB49, 0xFB2D }, +#define COMP_TABLE_IDX_END (COMP_TABLE_IDX_05C2 + COMP_TABLE_LEN_05C2) +}; +/* Compile-time verification of table size. */ +typedef int verify1[(NELEMS (comp_table_data) == COMP_TABLE_IDX_END) - 1]; + +static const struct { unsigned int idx; unsigned int len; } comp_table[8] = { + { COMP_TABLE_IDX_05B4, COMP_TABLE_LEN_05B4 }, + { COMP_TABLE_IDX_05B7, COMP_TABLE_LEN_05B7 }, + { COMP_TABLE_IDX_05B8, COMP_TABLE_LEN_05B8 }, + { COMP_TABLE_IDX_05B9, COMP_TABLE_LEN_05B9 }, + { COMP_TABLE_IDX_05BC, COMP_TABLE_LEN_05BC }, + { COMP_TABLE_IDX_05BF, COMP_TABLE_LEN_05BF }, + { COMP_TABLE_IDX_05C1, COMP_TABLE_LEN_05C1 }, + { COMP_TABLE_IDX_05C2, COMP_TABLE_LEN_05C2 }, +}; + +#define MIN_NEEDED_INPUT MIN_NEEDED_FROM +#define MIN_NEEDED_OUTPUT MIN_NEEDED_TO +#define MAX_NEEDED_OUTPUT 8 +#define LOOPFCT FROM_LOOP +#define BODY \ + { \ + uint32_t ch = *inptr; \ + uint32_t last_ch; \ + int must_buffer_ch; \ + \ + if (ch >= 0x80) \ + { \ + ch = to_ucs4[ch - 0x80]; \ + if (__builtin_expect (ch == L'\0', 0)) \ + { \ + /* This is an illegal character. */ \ + if (! ignore_errors_p ()) \ + { \ + result = __GCONV_ILLEGAL_INPUT; \ + break; \ + } \ + \ + ++inptr; \ + ++*irreversible; \ + continue; \ + } \ + } \ + \ + /* Determine whether there is a buffered character pending. */ \ + last_ch = *statep >> 3; \ + \ + /* We have to buffer ch if it is a possible match in comp_table_data. */ \ + must_buffer_ch = (ch >= 0x05d0 && ch <= 0x05f2); \ + \ + if (last_ch) \ + { \ + if (ch >= 0x05b0 && ch < 0x05c5) \ + { \ + /* See whether last_ch and ch can be combined. */ \ + unsigned int i, i1, i2; \ + \ + switch (ch) \ + { \ + case 0x05b4: \ + i = 0; \ + break; \ + case 0x05b7: \ + i = 1; \ + break; \ + case 0x05b8: \ + i = 2; \ + break; \ + case 0x05b9: \ + i = 3; \ + break; \ + case 0x05bc: \ + i = 4; \ + break; \ + case 0x05bf: \ + i = 5; \ + break; \ + case 0x05c1: \ + i = 6; \ + break; \ + case 0x05c2: \ + i = 7; \ + break; \ + default: \ + goto not_combining; \ + } \ + \ + i1 = comp_table[i].idx; \ + i2 = i1 + comp_table[i].len - 1; \ + \ + if (last_ch >= comp_table_data[i1].base \ + && last_ch <= comp_table_data[i2].base) \ + { \ + for (;;) \ + { \ + i = (i1 + i2) >> 1; \ + if (last_ch == comp_table_data[i].base) \ + break; \ + if (last_ch < comp_table_data[i].base) \ + { \ + if (i1 == i) \ + goto not_combining; \ + i2 = i; \ + } \ + else \ + { \ + if (i1 != i) \ + i1 = i; \ + else \ + { \ + i = i2; \ + if (last_ch == comp_table_data[i].base) \ + break; \ + goto not_combining; \ + } \ + } \ + } \ + last_ch = comp_table_data[i].composed; \ + if (last_ch == 0xfb2a || last_ch == 0xfb2b \ + || last_ch == 0xfb49) \ + /* Buffer the combined character. */ \ + *statep = last_ch << 3; \ + else \ + { \ + /* Output the combined character. */ \ + put32 (outptr, last_ch); \ + outptr += 4; \ + *statep = 0; \ + } \ + ++inptr; \ + continue; \ + } \ + } \ + \ + not_combining: \ + /* Output the buffered character. */ \ + put32 (outptr, last_ch); \ + outptr += 4; \ + *statep = 0; \ + \ + /* If we don't have enough room to output ch as well, then deal \ + with it in another round. */ \ + if (!must_buffer_ch && __builtin_expect (outptr + 4 > outend, 0)) \ + continue; \ + } \ + \ + if (must_buffer_ch) \ + *statep = ch << 3; \ + else \ + { \ + put32 (outptr, ch); \ + outptr += 4; \ + } \ + ++inptr; \ + } +#define LOOP_NEED_FLAGS +#define EXTRA_LOOP_DECLS , int *statep +#include <iconv/loop.c> + + +/* Next, define the conversion function from UCS4 to CP1255. */ + +static const unsigned char from_ucs4[] = { +#define FROM_IDX_00 0 + 0xa0, 0xa1, 0xa2, 0xa3, 0x00, 0xa5, 0xa6, 0xa7, /* 0x00a0-0x00a7 */ + 0xa8, 0xa9, 0x00, 0xab, 0xac, 0xad, 0xae, 0xaf, /* 0x00a8-0x00af */ + 0xb0, 0xb1, 0xb2, 0xb3, 0xb4, 0xb5, 0xb6, 0xb7, /* 0x00b0-0x00b7 */ + 0xb8, 0xb9, 0x00, 0xbb, 0xbc, 0xbd, 0xbe, 0xbf, /* 0x00b8-0x00bf */ + 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x00c0-0x00c7 */ + 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x00c8-0x00cf */ + 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0xaa, /* 0x00d0-0x00d7 */ + 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x00d8-0x00df */ + 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x00e0-0x00e7 */ + 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x00e8-0x00ef */ + 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0xba, /* 0x00f0-0x00f7 */ +#define FROM_IDX_02 (FROM_IDX_00 + 88) + 0x88, 0x00, /* 0x02c6-0x02c7 */ + 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x02c8-0x02cf */ + 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x02d0-0x02d7 */ + 0x00, 0x00, 0x00, 0x00, 0x98, /* 0x02d8-0x02dc */ +#define FROM_IDX_05 (FROM_IDX_02 + 23) + 0xc0, 0xc1, 0xc2, 0xc3, 0xc4, 0xc5, 0xc6, 0xc7, /* 0x05b0-0x05b7 */ + 0xc8, 0xc9, 0x00, 0xcb, 0xcc, 0xcd, 0xce, 0xcf, /* 0x05b8-0x05bf */ + 0xd0, 0xd1, 0xd2, 0xd3, 0x00, 0x00, 0x00, 0x00, /* 0x05c0-0x05c7 */ + 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x05c8-0x05cf */ + 0xe0, 0xe1, 0xe2, 0xe3, 0xe4, 0xe5, 0xe6, 0xe7, /* 0x05d0-0x05d7 */ + 0xe8, 0xe9, 0xea, 0xeb, 0xec, 0xed, 0xee, 0xef, /* 0x05d8-0x05df */ + 0xf0, 0xf1, 0xf2, 0xf3, 0xf4, 0xf5, 0xf6, 0xf7, /* 0x05e0-0x05e7 */ + 0xf8, 0xf9, 0xfa, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x05e8-0x05ef */ + 0xd4, 0xd5, 0xd6, 0xd7, 0xd8, /* 0x05f0-0x05f4 */ +#define FROM_IDX_20 (FROM_IDX_05 + 69) + 0xfd, 0xfe, /* 0x200e-0x200f */ + 0x00, 0x00, 0x00, 0x96, 0x97, 0x00, 0x00, 0x00, /* 0x2010-0x2017 */ + 0x91, 0x92, 0x82, 0x00, 0x93, 0x94, 0x84, 0x00, /* 0x2018-0x201f */ + 0x86, 0x87, 0x95, 0x00, 0x00, 0x00, 0x85, 0x00, /* 0x2020-0x2027 */ + 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x2028-0x202f */ + 0x89, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x2030-0x2037 */ + 0x00, 0x8b, 0x9b, /* 0x2038-0x203a */ +#define FROM_IDX_FF (FROM_IDX_20 + 45) +}; +/* Compile-time verification of table size. */ +typedef int verify2[(NELEMS (from_ucs4) == FROM_IDX_FF) - 1]; + +static const unsigned char comb_table[8] = { + 0xc4, 0xc7, 0xc8, 0xc9, 0xcc, 0xcf, 0xd1, 0xd2, +}; + +/* Decomposition table for the relevant Unicode characters. */ +static const struct { + uint16_t composed; + uint16_t base; + uint32_t comb1 : 8; + int32_t comb2 : 8; +} decomp_table[] = { + { 0xFB1D, 0x05D9, 0, -1 }, + { 0xFB1F, 0x05F2, 1, -1 }, + { 0xFB2A, 0x05E9, 6, -1 }, + { 0xFB2B, 0x05E9, 7, -1 }, + { 0xFB2C, 0x05E9, 4, 6 }, + { 0xFB2D, 0x05E9, 4, 7 }, + { 0xFB2E, 0x05D0, 1, -1 }, + { 0xFB2F, 0x05D0, 2, -1 }, + { 0xFB30, 0x05D0, 4, -1 }, + { 0xFB31, 0x05D1, 4, -1 }, + { 0xFB32, 0x05D2, 4, -1 }, + { 0xFB33, 0x05D3, 4, -1 }, + { 0xFB34, 0x05D4, 4, -1 }, + { 0xFB35, 0x05D5, 4, -1 }, + { 0xFB36, 0x05D6, 4, -1 }, + { 0xFB38, 0x05D8, 4, -1 }, + { 0xFB39, 0x05D9, 4, -1 }, + { 0xFB3A, 0x05DA, 4, -1 }, + { 0xFB3B, 0x05DB, 4, -1 }, + { 0xFB3C, 0x05DC, 4, -1 }, + { 0xFB3E, 0x05DE, 4, -1 }, + { 0xFB40, 0x05E0, 4, -1 }, + { 0xFB41, 0x05E1, 4, -1 }, + { 0xFB43, 0x05E3, 4, -1 }, + { 0xFB44, 0x05E4, 4, -1 }, + { 0xFB46, 0x05E6, 4, -1 }, + { 0xFB47, 0x05E7, 4, -1 }, + { 0xFB48, 0x05E8, 4, -1 }, + { 0xFB49, 0x05E9, 4, -1 }, + { 0xFB4A, 0x05EA, 4, -1 }, + { 0xFB4B, 0x05D5, 3, -1 }, + { 0xFB4C, 0x05D1, 5, -1 }, + { 0xFB4D, 0x05DB, 5, -1 }, + { 0xFB4E, 0x05E4, 5, -1 }, +}; + +#define MIN_NEEDED_INPUT MIN_NEEDED_TO +#define MIN_NEEDED_OUTPUT MIN_NEEDED_FROM +#define MAX_NEEDED_OUTPUT 3 +#define LOOPFCT TO_LOOP +#define BODY \ + { \ + uint32_t ch = get32 (inptr); \ + \ + if (ch < 0x0080) \ + { \ + *outptr++ = ch; \ + inptr += 4; \ + } \ + else \ + { \ + unsigned char res; \ + \ + if (ch >= 0x00a0 && ch < 0x00f8) \ + res = from_ucs4[ch - 0x00a0 + FROM_IDX_00]; \ + else if (ch == 0x0192) \ + res = 0x83; \ + else if (ch >= 0x02c6 && ch < 0x02dd) \ + res = from_ucs4[ch - 0x02c6 + FROM_IDX_02]; \ + else if (ch >= 0x05b0 && ch < 0x05f5) \ + res = from_ucs4[ch - 0x05b0 + FROM_IDX_05]; \ + else if (ch >= 0x200e && ch < 0x203b) \ + res = from_ucs4[ch - 0x200e + FROM_IDX_20]; \ + else if (ch == 0x20aa) \ + res = 0xa4; \ + else if (ch == 0x20ac) \ + res = 0x80; \ + else if (ch == 0x2122) \ + res = 0x99; \ + else \ + res = 0; \ + \ + if (__builtin_expect (res != 0, 1)) \ + { \ + *outptr++ = res; \ + inptr += 4; \ + } \ + else \ + { \ + /* Try canonical decomposition. */ \ + unsigned int i1, i2; \ + \ + i1 = 0; \ + i2 = sizeof (decomp_table) / sizeof (decomp_table[0]) - 1; \ + if (ch >= decomp_table[i1].composed \ + && ch <= decomp_table[i2].composed) \ + { \ + unsigned int i; \ + \ + for (;;) \ + { \ + i = (i1 + i2) >> 1; \ + if (ch == decomp_table[i].composed) \ + break; \ + if (ch < decomp_table[i].composed) \ + { \ + if (i1 == i) \ + goto failed; \ + i2 = i; \ + } \ + else \ + { \ + if (i1 != i) \ + i1 = i; \ + else \ + { \ + i = i2; \ + if (ch == decomp_table[i].composed) \ + break; \ + goto failed; \ + } \ + } \ + } \ + \ + /* Found a canonical decomposition. */ \ + ch = decomp_table[i].base; \ + /* ch is one of 0x05d0..0x05d6, 0x05d8..0x05dc, 0x05de, \ + 0x05e0..0x05e1, 0x05e3..0x05e4, 0x05e6..0x05ea, 0x05f2. */ \ + ch = from_ucs4[ch - 0x05b0 + FROM_IDX_05]; \ + assert (ch != 0); \ + \ + if (decomp_table[i].comb2 < 0) \ + { \ + /* See whether we have room for two bytes. */ \ + if (__builtin_expect (outptr + 1 >= outend, 0)) \ + { \ + result = __GCONV_FULL_OUTPUT; \ + break; \ + } \ + \ + *outptr++ = (unsigned char) ch; \ + *outptr++ = comb_table[decomp_table[i].comb1]; \ + } \ + else \ + { \ + /* See whether we have room for three bytes. */ \ + if (__builtin_expect (outptr + 2 >= outend, 0)) \ + { \ + result = __GCONV_FULL_OUTPUT; \ + break; \ + } \ + \ + *outptr++ = (unsigned char) ch; \ + *outptr++ = comb_table[decomp_table[i].comb1]; \ + *outptr++ = comb_table[decomp_table[i].comb2]; \ + } \ + \ + inptr += 4; \ + continue; \ + } \ + \ + failed: \ + /* This is an illegal character. */ \ + STANDARD_ERR_HANDLER (4); \ + } \ + } \ + } +#define LOOP_NEED_FLAGS +#define EXTRA_LOOP_DECLS , int *statep +#include <iconv/loop.c> + + +/* Now define the toplevel functions. */ +#include <iconv/skeleton.c> |