1 /* Access functions for JISX0201 conversion. 2 Copyright (C) 1997-2022 Free Software Foundation, Inc. 3 This file is part of the GNU C Library. 4 5 The GNU C Library is free software; you can redistribute it and/or 6 modify it under the terms of the GNU Lesser General Public 7 License as published by the Free Software Foundation; either 8 version 2.1 of the License, or (at your option) any later version. 9 10 The GNU C Library is distributed in the hope that it will be useful, 11 but WITHOUT ANY WARRANTY; without even the implied warranty of 12 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU 13 Lesser General Public License for more details. 14 15 You should have received a copy of the GNU Lesser General Public 16 License along with the GNU C Library; if not, see 17 <https://www.gnu.org/licenses/>. */ 18 19 #ifndef _JIS0201_H 20 #define _JIS0201_H 1 21 22 #include <stdint.h> 23 24 /* Conversion table. */ 25 extern const uint32_t __jisx0201_to_ucs4[]; 26 27 uint32_t(always_inline)28static inline uint32_t 29 __attribute ((always_inline)) 30 jisx0201_to_ucs4 (char ch) 31 { 32 uint32_t val = __jisx0201_to_ucs4[(unsigned char) ch]; 33 34 if (val == 0 && ch != '\0') 35 val = __UNKNOWN_10646_CHAR; 36 37 return val; 38 } 39 40 size_t(always_inline)41static inline size_t 42 __attribute ((always_inline)) 43 ucs4_to_jisx0201 (uint32_t wch, unsigned char *s) 44 { 45 unsigned char ch; 46 47 if (wch == 0xa5) 48 ch = '\x5c'; 49 else if (wch == 0x203e) 50 ch = '\x7e'; 51 else if (wch < 0x7e && wch != 0x5c) 52 ch = wch; 53 else if (wch >= 0xff61 && wch <= 0xff9f) 54 ch = wch - 0xfec0; 55 else 56 return __UNKNOWN_10646_CHAR; 57 58 s[0] = ch; 59 return 1; 60 } 61 62 #endif /* jis0201.h */ 63