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author | Zack Weinberg <zackw@panix.com> | 2017-06-08 15:39:03 -0400 |
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committer | Zack Weinberg <zackw@panix.com> | 2017-06-08 15:39:03 -0400 |
commit | 5046dbb4a7eba5eccfd258f92f4735c9ffc8d069 (patch) | |
tree | 4470480d904b65cf14ca524f96f79eca818c3eaf /REORG.TODO/iconvdata/ibm943.c | |
parent | 199fc19d3aaaf57944ef036e15904febe877fc93 (diff) | |
download | glibc-zack/build-layout-experiment.tar.gz glibc-zack/build-layout-experiment.tar.xz glibc-zack/build-layout-experiment.zip |
Prepare for radical source tree reorganization. zack/build-layout-experiment
All top-level files and directories are moved into a temporary storage directory, REORG.TODO, except for files that will certainly still exist in their current form at top level when we're done (COPYING, COPYING.LIB, LICENSES, NEWS, README), all old ChangeLog files (which are moved to the new directory OldChangeLogs, instead), and the generated file INSTALL (which is just deleted; in the new order, there will be no generated files checked into version control).
Diffstat (limited to 'REORG.TODO/iconvdata/ibm943.c')
-rw-r--r-- | REORG.TODO/iconvdata/ibm943.c | 215 |
1 files changed, 215 insertions, 0 deletions
diff --git a/REORG.TODO/iconvdata/ibm943.c b/REORG.TODO/iconvdata/ibm943.c new file mode 100644 index 0000000000..773e1f7461 --- /dev/null +++ b/REORG.TODO/iconvdata/ibm943.c @@ -0,0 +1,215 @@ +/* Conversion from and to IBM943. + Copyright (C) 2000-2017 Free Software Foundation, Inc. + This file is part of the GNU C Library. + Contributed by Masahide Washizawa <washi@jp.ibm.com>, 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/>. */ + +#include <dlfcn.h> +#include <stdint.h> +#include <stdbool.h> +#include "ibm943.h" + +#define FROM 0 +#define TO 1 + +/* Definitions used in the body of the `gconv' function. */ +#define CHARSET_NAME "IBM943//" +#define FROM_LOOP from_ibm943 +#define TO_LOOP to_ibm943 +#define ONE_DIRECTION 0 + +/* Definitions of initialization and destructor function. */ +#define DEFINE_INIT 1 +#define DEFINE_FINI 1 + +#define MIN_NEEDED_FROM 1 +#define MAX_NEEDED_FROM 2 +#define MIN_NEEDED_TO 4 + +/* First, define the conversion function from IBM-943 to UCS4. */ +#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 \ + { \ + const struct gap *rp2 = __ibm943db_to_ucs4_idx; \ + uint32_t ch = *inptr; \ + uint32_t res; \ + \ + if (__builtin_expect (ch == 0x80, 0) \ + || __builtin_expect (ch == 0xa0, 0) \ + || __builtin_expect (ch == 0xfd, 0) \ + || __builtin_expect (ch == 0xfe, 0) \ + || __builtin_expect (ch == 0xff, 0)) \ + { \ + /* This is an illegal character. */ \ + STANDARD_FROM_LOOP_ERR_HANDLER (1); \ + } \ + \ + /* Use the IBM943 table for single byte. */ \ + if (__builtin_expect (ch > 0xdf, 0) \ + || (res = __ibm943sb_to_ucs4[ch], \ + __builtin_expect (res == 0, 0) && ch != 0)) \ + { \ + /* Use the IBM943 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]; \ + /* ch was less than 0xfd. */ \ + assert (ch < 0xfd00); \ + while (ch > rp2->end) \ + ++rp2; \ + \ + if (__builtin_expect (ch < rp2->start, 0) \ + || (res = __ibm943db_to_ucs4[ch + rp2->idx], \ + __builtin_expect (res, '\1') == 0 && ch !=0)) \ + { \ + /* This is an illegal character. */ \ + STANDARD_FROM_LOOP_ERR_HANDLER (2); \ + } \ + else \ + { \ + put32 (outptr, res); \ + outptr += 4; \ + inptr += 2; \ + } \ + } \ + else \ + { \ + if (res == 0xa5) \ + res = 0x5c; \ + else if (res == 0x203e) \ + res = 0x7e; \ + put32 (outptr, res); \ + outptr += 4; \ + inptr++; \ + } \ + } +#define LOOP_NEED_FLAGS +#define ONEBYTE_BODY \ + { \ + if (c == 0x80 || c == 0xa0 || c >= 0xe0) \ + return WEOF; \ + uint32_t res = __ibm943sb_to_ucs4[c]; \ + if (res == 0 && c != 0) \ + return WEOF; \ + if (res == 0xa5) \ + res = 0x5c; \ + else if (res == 0x203e) \ + res = 0x7e; \ + return res; \ + } +#include <iconv/loop.c> + +/* Next, define the other direction. */ +#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 \ + { \ + const struct gap *rp = __ucs4_to_ibm943sb_idx; \ + unsigned char sc; \ + uint32_t ch = get32(inptr); \ + bool found = true; \ + uint32_t i; \ + uint32_t low; \ + uint32_t high; \ + uint16_t pccode; \ + \ + if (__glibc_unlikely (ch >= 0xffff)) \ + { \ + UNICODE_TAG_HANDLER (ch, 4); \ + rp = NULL; \ + } \ + else \ + while (ch > rp->end) \ + ++rp; \ + \ + /* Use the UCS4 table for single byte. */ \ + if (__builtin_expect (rp == NULL, 0) \ + || __builtin_expect (ch < rp->start, 0) \ + || (sc = __ucs4_to_ibm943sb[ch + rp->idx], \ + __builtin_expect (sc, '\1') == '\0' && ch != L'\0')) \ + { \ + \ + /* Use the UCS4 table for double byte. */ \ + found = false; \ + low = 0; \ + high = (sizeof (__ucs4_to_ibm943db) >> 1) \ + / sizeof (__ucs4_to_ibm943db[0][FROM]); \ + pccode = ch; \ + if (__glibc_likely (rp != NULL)) \ + while (low < high) \ + { \ + i = (low + high) >> 1; \ + if (pccode < __ucs4_to_ibm943db[i][FROM]) \ + high = i; \ + else if (pccode > __ucs4_to_ibm943db[i][FROM]) \ + low = i + 1; \ + else \ + { \ + pccode = __ucs4_to_ibm943db[i][TO]; \ + found = true; \ + break; \ + } \ + } \ + if (found) \ + { \ + if (__glibc_unlikely (outptr + 2 > outend)) \ + { \ + result = __GCONV_FULL_OUTPUT; \ + break; \ + } \ + *outptr++ = pccode >> 8 & 0xff; \ + *outptr++ = pccode & 0xff; \ + } \ + else \ + { \ + /* This is an illegal character. */ \ + STANDARD_TO_LOOP_ERR_HANDLER (4); \ + } \ + } \ + else \ + { \ + if (__glibc_unlikely (outptr + 1 > outend)) \ + { \ + result = __GCONV_FULL_OUTPUT; \ + break; \ + } \ + if (ch == 0x5c) \ + *outptr++ = 0x5c; \ + else if (ch == 0x7e) \ + *outptr++ = 0x7e; \ + else \ + *outptr++ = sc; \ + } \ + \ + /* Now that we wrote the output increment the input pointer. */ \ + inptr += 4; \ + } +#define LOOP_NEED_FLAGS +#include <iconv/loop.c> + +/* Now define the toplevel functions. */ +#include <iconv/skeleton.c> |