| /* Conversion from and to IBM932. |
| Copyright (C) 2000-2016 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 "ibm932.h" |
| |
| #define FROM 0 |
| #define TO 1 |
| |
| /* Definitions used in the body of the `gconv' function. */ |
| #define CHARSET_NAME "IBM932//" |
| #define FROM_LOOP from_ibm932 |
| #define TO_LOOP to_ibm932 |
| #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-932 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 = __ibm932db_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 IBM932 table for single byte. */ \ |
| res = __ibm932sb_to_ucs4[ch]; \ |
| if (__builtin_expect (res == 0, 0) && ch != 0) \ |
| { \ |
| /* Use the IBM932 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 = __ibm932db_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 >= 0xfd) \ |
| return WEOF; \ |
| uint32_t res = __ibm932sb_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_ibm932sb_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_ibm932sb[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_ibm932db) >> 1) \ |
| / sizeof (__ucs4_to_ibm932db[0][FROM]); \ |
| pccode = ch; \ |
| if (__glibc_likely (rp != NULL)) \ |
| while (low < high) \ |
| { \ |
| i = (low + high) >> 1; \ |
| if (pccode < __ucs4_to_ibm932db[i][FROM]) \ |
| high = i; \ |
| else if (pccode > __ucs4_to_ibm932db[i][FROM]) \ |
| low = i + 1; \ |
| else \ |
| { \ |
| pccode = __ucs4_to_ibm932db[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> |