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|
/* Conversion from and to CP1255.
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,
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
published by the Free Software Foundation; either version 2 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
Library General Public License for more details.
You should have received a copy of the GNU Library General Public
License along with the GNU C Library; see the file COPYING.LIB. 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 <assert.h>
#define NELEMS(arr) (sizeof (arr) / sizeof (arr[0]))
/* 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
/* 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>
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