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Diffstat (limited to 'iconvdata/ibm937.c')
| -rw-r--r-- | iconvdata/ibm937.c | 275 |
1 files changed, 0 insertions, 275 deletions
diff --git a/iconvdata/ibm937.c b/iconvdata/ibm937.c deleted file mode 100644 index 230c346fa0..0000000000 --- a/iconvdata/ibm937.c +++ /dev/null @@ -1,275 +0,0 @@ -/* Conversion from and to IBM937. - Copyright (C) 2000-2017 Free Software Foundation, Inc. - This file is part of the GNU C Library. - Contributed by Masahide Washizawa <washi@yamato.ibm.co.jp>, 2000. - - 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, see - <http://www.gnu.org/licenses/>. */ - -/* IBM937 is designed for the representation of Traditional Chinese - using a stateful EBCDIC encoding scheme. It is also known as - CCSID 937 or CP937. See: - https://www-01.ibm.com/software/globalization/ccsid/ccsid937.html */ - -#include <dlfcn.h> -#include <stdint.h> -#include <wchar.h> -#include <byteswap.h> -#include "ibm937.h" - -/* The shift sequences for this charset (it does not use ESC). */ -#define SI 0x0F /* Shift In, host code to turn DBCS off. */ -#define SO 0x0E /* Shift Out, host code to turn DBCS on. */ - -/* Definitions used in the body of the `gconv' function. */ -#define CHARSET_NAME "IBM937//" -#define FROM_LOOP from_ibm937 -#define TO_LOOP to_ibm937 -#define ONE_DIRECTION 0 -#define FROM_LOOP_MIN_NEEDED_FROM 1 -#define FROM_LOOP_MAX_NEEDED_FROM 2 -#define FROM_LOOP_MIN_NEEDED_TO 4 -#define FROM_LOOP_MAX_NEEDED_TO 4 -#define TO_LOOP_MIN_NEEDED_FROM 4 -#define TO_LOOP_MAX_NEEDED_FROM 4 -#define TO_LOOP_MIN_NEEDED_TO 1 -#define TO_LOOP_MAX_NEEDED_TO 3 -#define PREPARE_LOOP \ - int save_curcs; \ - int *curcsp = &data->__statep->__count; -#define EXTRA_LOOP_ARGS , curcsp - -/* Definitions of initialization and destructor function. */ -#define DEFINE_INIT 1 -#define DEFINE_FINI 1 - - -/* 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 & ~7) != sb) \ - { \ - if (FROM_DIRECTION) \ - data->__statep->__count &= 7; \ - else \ - { \ - /* We are not in the initial state. To switch back we have \ - to emit `SI'. */ \ - if (__glibc_unlikely (outbuf >= outend)) \ - /* We don't have enough room in the output buffer. */ \ - status = __GCONV_FULL_OUTPUT; \ - else \ - { \ - /* Write out the shift sequence. */ \ - *outbuf++ = SI; \ - data->__statep->__count &= 7; \ - } \ - } \ - } - - -/* Since we might have to reset input pointer we must be able to save - and retore the state. */ -#define SAVE_RESET_STATE(Save) \ - if (Save) \ - save_curcs = *curcsp; \ - else \ - *curcsp = save_curcs - - -/* Current codeset type. */ -enum -{ - sb = 0, - db = 64 -}; - -/* First, define the conversion function from IBM-937 to UCS4. */ -#define MIN_NEEDED_INPUT FROM_LOOP_MIN_NEEDED_FROM -#define MAX_NEEDED_INPUT FROM_LOOP_MAX_NEEDED_FROM -#define MIN_NEEDED_OUTPUT FROM_LOOP_MIN_NEEDED_TO -#define MAX_NEEDED_OUTPUT FROM_LOOP_MAX_NEEDED_TO -#define LOOPFCT FROM_LOOP -#define BODY \ - { \ - uint32_t ch = *inptr; \ - uint32_t res; \ - \ - if (__builtin_expect (ch, 0) == SO) \ - { \ - /* Shift OUT, change to DBCS converter (redundant escape okay). */ \ - curcs = db; \ - ++inptr; \ - continue; \ - } \ - else if (__builtin_expect (ch, 0) == SI) \ - { \ - /* Shift IN, change to SBCS converter (redundant escape okay). */ \ - curcs = sb; \ - ++inptr; \ - continue; \ - } \ - \ - if (curcs == sb) \ - { \ - /* Use the IBM937 table for single byte. */ \ - res = __ibm937sb_to_ucs4[ch]; \ - if (__builtin_expect (res, L'\1') == L'\0' && ch != '\0') \ - { \ - /* This is an illegal character. */ \ - STANDARD_FROM_LOOP_ERR_HANDLER (1); \ - } \ - else \ - { \ - put32 (outptr, res); \ - outptr += 4; \ - } \ - ++inptr; \ - } \ - else \ - { \ - const struct gap *rp2 = __ibm937db_to_ucs4_idx; \ - \ - assert (curcs == db); \ - \ - /* Use the IBM937 table for double byte. */ \ - if (__glibc_unlikely (inptr + 1 >= inend)) \ - { \ - /* The second character is not available. \ - Store the intermediate result. */ \ - result = __GCONV_INCOMPLETE_INPUT; \ - break; \ - } \ - \ - ch = (ch * 0x100) + inptr[1]; \ - while (ch > rp2->end) \ - ++rp2; \ - \ - if (__builtin_expect (rp2->start == 0xffff, 0) \ - || __builtin_expect (ch < rp2->start, 0) \ - || (res = __ibm937db_to_ucs4[ch + rp2->idx], \ - __builtin_expect (res, L'\1') == L'\0' && ch != '\0')) \ - { \ - /* This is an illegal character. */ \ - STANDARD_FROM_LOOP_ERR_HANDLER (2); \ - } \ - else \ - { \ - put32 (outptr, res); \ - outptr += 4; \ - } \ - inptr += 2; \ - } \ - } -#define LOOP_NEED_FLAGS -#define EXTRA_LOOP_DECLS , int *curcsp -#define INIT_PARAMS int curcs = *curcsp & ~7 -#define UPDATE_PARAMS *curcsp = curcs -#include <iconv/loop.c> - -/* Next, define the other direction. */ -#define MIN_NEEDED_INPUT TO_LOOP_MIN_NEEDED_FROM -#define MAX_NEEDED_INPUT TO_LOOP_MAX_NEEDED_FROM -#define MIN_NEEDED_OUTPUT TO_LOOP_MIN_NEEDED_TO -#define MAX_NEEDED_OUTPUT TO_LOOP_MAX_NEEDED_TO -#define LOOPFCT TO_LOOP -#define BODY \ - { \ - uint32_t ch = get32 (inptr); \ - const struct gap *rp1 = __ucs4_to_ibm937sb_idx; \ - const struct gap *rp2 = __ucs4_to_ibm937db_idx; \ - const char *cp; \ - \ - if (__glibc_unlikely (ch >= 0xffff)) \ - { \ - UNICODE_TAG_HANDLER (ch, 4); \ - \ - STANDARD_TO_LOOP_ERR_HANDLER (4); \ - } \ - \ - while (ch > rp1->end) \ - ++rp1; \ - \ - /* Use the UCS4 table for single byte. */ \ - if (__builtin_expect (ch < rp1->start, 0) \ - || (cp = __ucs4_to_ibm937sb[ch + rp1->idx], \ - __builtin_expect (cp[0], L'\1') == L'\0' && ch != '\0')) \ - { \ - /* Use the UCS4 table for double byte. */ \ - while (ch > rp2->end) \ - ++rp2; \ - \ - if (__builtin_expect (ch < rp2->start, 0) \ - || (cp = __ucs4_to_ibm937db[ch + rp2->idx], \ - __builtin_expect (cp[0], L'\1')==L'\0' && ch != '\0')) \ - { \ - /* This is an illegal character. */ \ - STANDARD_TO_LOOP_ERR_HANDLER (4); \ - } \ - else \ - { \ - if (curcs == sb) \ - { \ - if (__glibc_unlikely (outptr + 1 > outend)) \ - { \ - result = __GCONV_FULL_OUTPUT; \ - break; \ - } \ - *outptr++ = SO; \ - curcs = db; \ - } \ - \ - if (__glibc_unlikely (outptr + 2 > outend)) \ - { \ - result = __GCONV_FULL_OUTPUT; \ - break; \ - } \ - *outptr++ = cp[0]; \ - *outptr++ = cp[1]; \ - } \ - } \ - else \ - { \ - if (curcs == db) \ - { \ - if (__glibc_unlikely (outptr + 1 > outend)) \ - { \ - result = __GCONV_FULL_OUTPUT; \ - break; \ - } \ - *outptr++ = SI; \ - curcs = sb; \ - } \ - \ - if (__glibc_unlikely (outptr + 1 > outend)) \ - { \ - result = __GCONV_FULL_OUTPUT; \ - break; \ - } \ - *outptr++ = cp[0]; \ - } \ - \ - /* Now that we wrote the output increment the input pointer. */ \ - inptr += 4; \ - } -#define LOOP_NEED_FLAGS -#define EXTRA_LOOP_DECLS , int *curcsp -#define INIT_PARAMS int curcs = *curcsp & ~7 -#define REINIT_PARAMS curcs = *curcsp & ~7 -#define UPDATE_PARAMS *curcsp = curcs -#include <iconv/loop.c> - -/* Now define the toplevel functions. */ -#include <iconv/skeleton.c> |