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2000-03-28 Ulrich Drepper <drepper@redhat.com> * iconvdata/TESTS: Use UCS-2BE instead of UCS2. * iconv/loop.c: Define get16, get32, put16, and put32 macros to allow as well reading from/writing to unaligned addresses on machines which don't support this in hardware. Use FCTNAME macro to define function name. Include the file a second time for platforms which need special unaligned handling. * iconv/skeleton.c: Define get16u, get32u, put16u, and put32u macros to access potentially unaligned addresses. These macros are intended to be used only outside the loops. (unaligned): New definition. In case the machine can handle unaligned access define as zero. Otherwise as a variable which is initialized as nonzero in case the buffer passed in at runtime is unaligned with respect to the character set encoding involved. Call aligned or unaligned looop functions according to unaligned variable. * iconvdata/8bit-gap.c: Use get16, get32, put16, and put32 instead of direct casting pointer to potentially handle unaligned memory accesses. * iconvdata/8bit-generic.c: Likewise. * iconvdata/ansi_x3.110.c: Likewise. * iconvdata/big5.c: Likewise. * iconvdata/euc-cn.c: Likewise. * iconvdata/euc-jp.c: Likewise. * iconvdata/euc-kr.c: Likewise. * iconvdata/euc-tw.c: Likewise. * iconvdata/gbk.c: Likewise. * iconvdata/iso-2022-cn.c: Likewise. * iconvdata/iso-2022-jp.c: Likewise. * iconvdata/iso-2022-kr.c: Likewise. * iconvdata/iso646.c: Likewise. * iconvdata/iso_6937-2.c: Likewise. * iconvdata/iso_6937.c: Likewise. * iconvdata/johab.c: Likewise. * iconvdata/sjis.c: Likewise. * iconvdata/t.61.c: Likewise. * iconvdata/uhc.c: Likewise. * iconvdata/unicode.c: Likewise. * iconvdata/utf-16.c: Likewise. * locale/programs/simple-hash.c: Little optimizations. Remove K&R prototypes. * malloc/Versions [libc] (GLIBC_2.2): Add mcheck_check_all. * malloc/mcheck.c (mcheck_check_all): Renamed from check_all and made public. * malloc/mcheck.h (mcheck_check_all): Declare. * stdio-common/Makefile (tests): Add tst-obprintf.
410 lines
13 KiB
C
410 lines
13 KiB
C
/* Mapping tables for JOHAB handling.
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Copyright (C) 1998, 1999, 2000 Free Software Foundation, Inc.
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This file is part of the GNU C Library.
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Contributed by Jungshik Shin <jshin@pantheon.yale.edu>
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and Ulrich Drepper <drepper@cygnus.com>, 1998.
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The GNU C Library is free software; you can redistribute it and/or
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modify it under the terms of the GNU Library General Public License as
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published by the Free Software Foundation; either version 2 of the
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License, or (at your option) any later version.
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The GNU C Library is distributed in the hope that it will be useful,
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but WITHOUT ANY WARRANTY; without even the implied warranty of
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MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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Library General Public License for more details.
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You should have received a copy of the GNU Library General Public
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License along with the GNU C Library; see the file COPYING.LIB. If not,
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write to the Free Software Foundation, Inc., 59 Temple Place - Suite 330,
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Boston, MA 02111-1307, USA. */
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#include <stdint.h>
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#include <ksc5601.h>
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/* The table for Bit pattern to Hangul Jamo
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5 bits each are used to encode
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leading consonants(19 + 1 filler), medial vowels(21 + 1 filler)
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and trailing consonants(27 + 1 filler).
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KS C 5601-1992 Annex 3 Table 2
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0 : Filler, -1: invalid, >= 1 : valid
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*/
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static const int init[32] =
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{
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-1, 0, 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18,
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19, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1
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};
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static const int mid[32] =
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{
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-1, -1, 0, 1, 2, 3, 4, 5,
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-1, -1, 6, 7, 8, 9, 10, 11,
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-1, -1, 12, 13, 14, 15, 16, 17,
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-1, -1, 18, 19, 20, 21, -1, -1
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};
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static const int final[32] =
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{
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-1, 0, 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16,
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-1, 17, 18, 19, 20, 21, 22, 23, 24, 25, 26, 27, -1, -1
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};
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/*
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Hangul Jamo in Johab to Unicode 2.0 : Unicode 2.0
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defines 51 Hangul Compatibility Jamos in the block [0x3131,0x314e]
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It's to be considered later which Jamo block to use, Compatibility
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block [0x3131,0x314e] or Hangul Conjoining Jamo block, [0x1100,0x11ff]
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*/
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static const uint32_t init_to_ucs[19] =
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{
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0x3131, 0x3132, 0x3134, 0x3137, 0x3138, 0x3139, 0x3141, 0x3142,
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0x3143, 0x3145, 0x3146, 0x3147, 0x3148, 0x3149, 0x314a, 0x314b,
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0x314c, 0x314d, 0x314e
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};
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static const uint32_t final_to_ucs[31] =
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{
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L'\0', L'\0', 0x3133, L'\0', 0x3135, 0x3136, L'\0', L'\0',
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0x313a, 0x313b, 0x314c, 0x313d, 0x313e, 0x313f,
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0x3140, L'\0', L'\0', L'\0', 0x3144, L'\0', L'\0', L'\0',
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L'\0', L'\0', L'\0', L'\0', L'\0', L'\0', L'\0', L'\0', L'\0'
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};
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/* The following three arrays are used to convert
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precomposed Hangul syllables in [0xac00,0xd???]
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to Jamo bit patterns for Johab encoding
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cf. : KS C 5601-1992, Annex3 Table 2
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Arrays are used to speed up things although it's possible
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to get the same result arithmetically.
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*/
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static const int init_to_bit[19] =
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{
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0x8800, 0x8c00, 0x9000, 0x9400, 0x9800, 0x9c00,
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0xa000, 0xa400, 0xa800, 0xac00, 0xb000, 0xb400,
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0xb800, 0xbc00, 0xc000, 0xc400, 0xc800, 0xcc00,
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0xd000
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};
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static const int mid_to_bit[21] =
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{
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0x0060, 0x0080, 0x00a0, 0x00c0, 0x00e0,
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0x0140, 0x0160, 0x0180, 0x01a0, 0x01c0, 0x1e0,
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0x0240, 0x0260, 0x0280, 0x02a0, 0x02c0, 0x02e0,
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0x0340, 0x0360, 0x0380, 0x03a0
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};
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static const int final_to_bit[28] =
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{
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1, 2, 3, 4, 5, 6, 7, 8, 9, 0x0a, 0x0b, 0x0c, 0x0d, 0x0e, 0x0f, 0x10, 0x11,
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0x13, 0x14, 0x15, 0x16, 0x17, 0x18, 0x19, 0x1a, 0x1b, 0x1c, 0x1d
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};
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/* The conversion table from
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UCS4 Hangul Compatibility Jamo in [0x3131,0x3163]
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to Johab
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cf. 1. KS C 5601-1992 Annex 3 Table 2
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2. Unicode 2.0 manual
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*/
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static const uint16_t jamo_from_ucs_table[51] =
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{
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0x8841, 0x8c41,
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0x8444,
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0x9041,
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0x8446, 0x8447,
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0x9441, 0x9841, 0x9c41,
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0x844a, 0x844b, 0x844c, 0x844d, 0x884e, 0x884f, 0x8450,
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0xa041, 0xa441, 0xa841,
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0x8454,
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0xac41, 0xb041, 0xb441, 0xb841, 0xbc41,
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0xc041, 0xc441, 0xc841, 0xca41, 0xd041,
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0x8461, 0x8481, 0x84a1, 0x84c1, 0x84e1,
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0x8541, 0x8561, 0x8581, 0x85a1, 0x85c1, 0x85e1,
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0x8641, 0x8661, 0x8681, 0x86a1, 0x86c1, 0x86e1,
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0x8741, 0x8761, 0x8781, 0x87a1
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};
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static inline uint32_t
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johab_sym_hanja_to_ucs (uint_fast32_t idx, uint_fast32_t c1, uint_fast32_t c2)
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{
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if (idx <= 0xdefe)
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return (uint32_t) __ksc5601_sym_to_ucs[(c1 - 0xd9) * 188 + c2
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- (c2 > 0x90 ? 0x43 : 0x31)];
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else
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return (uint32_t) __ksc5601_hanja_to_ucs[(c1 - 0xe0) * 188 + c2
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- (c2 > 0x90 ? 0x43 : 0x31)];
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}
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/* Definitions used in the body of the `gconv' function. */
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#define CHARSET_NAME "JOHAB//"
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#define FROM_LOOP from_johab
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#define TO_LOOP to_johab
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#define DEFINE_INIT 1
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#define DEFINE_FINI 1
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#define MIN_NEEDED_FROM 1
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#define MAX_NEEDED_FROM 2
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#define MIN_NEEDED_TO 4
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/* First define the conversion function from JOHAB to UCS4. */
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#define MIN_NEEDED_INPUT MIN_NEEDED_FROM
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#define MAX_NEEDED_INPUT MAX_NEEDED_FROM
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#define MIN_NEEDED_OUTPUT MIN_NEEDED_TO
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#define LOOPFCT FROM_LOOP
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#define BODY \
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{ \
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uint32_t ch = *inptr; \
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\
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/* half-width Korean Currency WON sign \
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if (ch == 0x5c) \
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ch = 0x20a9; \
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else if (ch < 0x7f) \
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ch = (uint32_t) ch; \
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*/ \
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if (ch < 0x7f) \
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/* Plain ASCII. */ \
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++inptr; \
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/* Johab : 1. Hangul \
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1st byte : 0x84-0xd3 \
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2nd byte : 0x41-0x7e, 0x81-0xfe \
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2. Hanja & Symbol : \
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1st byte : 0xd8-0xde, 0xe0-0xf9 \
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2nd byte : 0x31-0x7e, 0x91-0xfe \
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0xd831-0xd87e and 0xd891-0xd8fe are user-defined area */ \
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else \
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{ \
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if (ch > 0xf9 || ch == 0xdf || (ch > 0x7e && ch < 0x84) \
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|| (ch > 0xd3 && ch < 0xd9)) \
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{ \
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/* These are illegal. */ \
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result = __GCONV_ILLEGAL_INPUT; \
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break; \
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} \
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else \
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{ \
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/* Two-byte character. First test whether the next \
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character is also available. */ \
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uint32_t ch2; \
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uint_fast32_t idx; \
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\
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if (NEED_LENGTH_TEST && inptr + 1 >= inend) \
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{ \
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/* The second character is not available. Store the \
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intermediate result. */ \
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result = __GCONV_INCOMPLETE_INPUT; \
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break; \
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} \
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\
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ch2 = inptr[1]; \
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idx = ch * 256 + ch2; \
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if (ch <= 0xd3) \
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{ \
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/* Hangul */ \
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uint_fast32_t i, m, f; \
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\
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i = init[(idx & 0x7c00) >> 10]; \
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m = mid[(idx & 0x03e0) >> 5]; \
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f = final[idx & 0x001f]; \
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\
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if (i == -1 || m == -1 || f == -1) \
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{ \
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/* This is illegal. */ \
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result = __GCONV_ILLEGAL_INPUT; \
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break; \
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} \
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else if (i > 0 && m > 0) \
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ch = ((i - 1) * 21 + (m - 1)) * 28 + f + 0xac00; \
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else if (i > 0 && m == 0 && f == 0) \
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ch = init_to_ucs[i - 1]; \
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else if (i == 0 && m > 0 && f == 0) \
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ch = 0x314e + m; /* 0x314f + m - 1 */ \
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else if (i == 0 && m == 0 && f > 0) \
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ch = final_to_ucs[f - 1]; /* round trip?? */ \
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else \
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{ \
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/* This is illegal. */ \
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result = __GCONV_ILLEGAL_INPUT; \
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break; \
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} \
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} \
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else \
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{ \
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if (ch2 < 0x31 || (ch2 > 0x7e && ch2 < 0x91) || ch2 == 0xff) \
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{ \
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/* This is illegal. */ \
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result = __GCONV_ILLEGAL_INPUT; \
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break; \
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} \
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else if (ch == 0xda && ch2 > 0xa0 && ch2 < 0xd4) \
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{ \
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/* This is illegal. Modern Hangul Jaso is defined \
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elsewhere in Johab */ \
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result = __GCONV_ILLEGAL_INPUT; \
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break; \
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} \
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else \
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{ \
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ch = johab_sym_hanja_to_ucs (idx, ch, ch2); \
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/* if (idx <= 0xdefe) \
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ch = __ksc5601_sym_to_ucs[(ch - 0xd9) * 192 \
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+ ch2 - (ch2 > 0x90 \
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? 0x43 : 0x31)]; \
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else \
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ch = __ksc5601_hanja_to_ucs[(ch - 0xe0) *192 \
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+ ch2 - (ch2 > 0x90 \
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?0x43 : 0x31)];\
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*/ \
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} \
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} \
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} \
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\
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if (ch == 0) \
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{ \
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/* This is an illegal character. */ \
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result = __GCONV_ILLEGAL_INPUT; \
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break; \
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} \
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\
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inptr += 2; \
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} \
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\
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put32 (outptr, ch); \
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outptr += 4; \
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}
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#include <iconv/loop.c>
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/* Next, define the other direction. */
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#define MIN_NEEDED_INPUT MIN_NEEDED_TO
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#define MIN_NEEDED_OUTPUT MIN_NEEDED_FROM
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#define MAX_NEEDED_OUTPUT MAX_NEEDED_FROM
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#define LOOPFCT TO_LOOP
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#define BODY \
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{ \
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uint32_t ch = get32 (inptr); \
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/* \
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if (ch >= (sizeof (from_ucs4_lat1) / sizeof (from_ucs4_lat1[0]))) \
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{ \
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if (ch >= 0x0391 && ch <= 0x0451) \
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cp = from_ucs4_greek[ch - 0x391]; \
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else if (ch >= 0x2010 && ch <= 0x9fa0) \
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cp = from_ucs4_cjk[ch - 0x02010]; \
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else \
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break; \
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} \
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else \
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cp = from_ucs4_lat1[ch]; \
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*/ \
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\
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if (ch < 0x7f) \
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*outptr++ = ch; \
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else \
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{ \
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if (ch >= 0xac00 && ch <= 0xd7a3) \
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{ \
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if (NEED_LENGTH_TEST && outptr + 2 > outend) \
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{ \
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result = __GCONV_FULL_OUTPUT; \
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break; \
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} \
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\
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ch -= 0xac00; \
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\
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ch = (init_to_bit[ch / 588] /* 21 * 28 = 588 */ \
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+ mid_to_bit[(ch / 28) % 21]/* (ch % (21 * 28)) / 28 */ \
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+ final_to_bit[ch % 28]); /* (ch % (21 * 28)) % 28 */ \
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\
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*outptr++ = ch / 256; \
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*outptr++ = ch % 256; \
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} \
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/* KS C 5601-1992 Annex 3 regards 0xA4DA(Hangul Filler : U3164) \
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as symbol */ \
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else if (ch >= 0x3131 && ch <= 0x3163) \
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{ \
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ch = jamo_from_ucs_table[ch - 0x3131]; \
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\
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if (NEED_LENGTH_TEST && outptr + 2 > outend) \
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{ \
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result = __GCONV_FULL_OUTPUT; \
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break; \
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} \
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\
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*outptr++ = ch / 256; \
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*outptr++ = ch % 256; \
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} \
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else if ((ch >= 0x4e00 && ch <= 0x9fa5) \
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|| (ch >= 0xf900 && ch <= 0xfa0b)) \
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{ \
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size_t written; \
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uint32_t temp; \
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\
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written = ucs4_to_ksc5601_hanja (ch, outptr, \
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(NEED_LENGTH_TEST \
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? outend - outptr : 2)); \
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if (NEED_LENGTH_TEST && written == 0) \
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{ \
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result = __GCONV_FULL_OUTPUT; \
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break; \
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} \
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if (written == __UNKNOWN_10646_CHAR) \
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{ \
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result = __GCONV_ILLEGAL_INPUT; \
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break; \
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} \
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\
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outptr[0] -= 0x4a; \
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outptr[1] -= 0x21; \
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\
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temp = outptr[0] * 94 + outptr[1]; \
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\
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outptr[0] = 0xe0 + temp / 188; \
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outptr[1] = temp % 188; \
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outptr[1] += outptr[1] >= 78 ? 0x43 : 0x31; \
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\
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outptr += 2; \
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} \
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else \
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{ \
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size_t written; \
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\
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written = ucs4_to_ksc5601_sym (ch, outptr, \
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(NEED_LENGTH_TEST \
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? outend - outptr : 2)); \
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if (NEED_LENGTH_TEST && written == 0) \
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{ \
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result = __GCONV_FULL_OUTPUT; \
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break; \
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} \
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if (written == __UNKNOWN_10646_CHAR) \
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{ \
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result = __GCONV_ILLEGAL_INPUT; \
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break; \
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} \
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\
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outptr[0] -= 0x4a; \
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outptr[1] += 0x80; \
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\
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outptr[1] += (outptr[0] % 2 \
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? 0 : (outptr[1] > 0xee ? 0x43 : 0x31)); \
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outptr[1] -= 0xa1; \
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outptr[0] /= 2; \
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outptr[0] += 0xe0; \
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\
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outptr += 2; \
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} \
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} \
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\
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inptr += 4; \
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}
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#include <iconv/loop.c>
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/* Now define the toplevel functions. */
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#include <iconv/skeleton.c>
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