projects / deliverable / binutils-gdb.git / blame
| Commit | Line | Data |
|---|---|---|
| 5df4cba6 | 1 | /* Dispatching based on the current locale's character encoding. |
| 9c9d63b1 | 2 | Copyright (C) 2018-2021 Free Software Foundation, Inc. |
| 5df4cba6 SM |
3 | |
| 4 | This program is free software: you can redistribute it and/or modify | |
| 5 | it under the terms of the GNU General Public License as published by | |
| 6 | the Free Software Foundation; either version 3 of the License, or | |
| 7 | (at your option) any later version. | |
| 8 | ||
| 9 | This program is distributed in the hope that it will be useful, | |
| 10 | but WITHOUT ANY WARRANTY; without even the implied warranty of | |
| 11 | MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the | |
| 12 | GNU General Public License for more details. | |
| 13 | ||
| 14 | You should have received a copy of the GNU General Public License | |
| 15 | along with this program. If not, see <https://www.gnu.org/licenses/>. */ | |
| 16 | ||
| 17 | /* Written by Bruno Haible <bruno@clisp.org>, 2018. */ | |
| 18 | ||
| 19 | #include <config.h> | |
| 20 | ||
| 21 | /* Specification. */ | |
| 22 | #include "lc-charset-dispatch.h" | |
| 23 | ||
| 24 | #if GNULIB_defined_mbstate_t | |
| 25 | ||
| 26 | # include "localcharset.h" | |
| 27 | # include "streq.h" | |
| 28 | ||
| 29 | # if GNULIB_WCHAR_SINGLE | |
| 30 | /* When we know that the locale does not change, provide a speedup by | |
| 31 | caching the value of locale_encoding_classification. */ | |
| 32 | # define locale_encoding_classification_cached locale_encoding_classification | |
| 33 | # else | |
| 34 | /* By default, don't make assumptions, hence no caching. */ | |
| 35 | # define locale_encoding_classification_uncached locale_encoding_classification | |
| 36 | # endif | |
| 37 | ||
| 38 | # if GNULIB_WCHAR_SINGLE | |
| 39 | static inline | |
| 40 | # endif | |
| 41 | enc_t | |
| 42 | locale_encoding_classification_uncached (void) | |
| 43 | { | |
| 44 | const char *encoding = locale_charset (); | |
| 45 | if (STREQ_OPT (encoding, "UTF-8", 'U', 'T', 'F', '-', '8', 0, 0, 0, 0)) | |
| 46 | return enc_utf8; | |
| 47 | if (STREQ_OPT (encoding, "EUC-JP", 'E', 'U', 'C', '-', 'J', 'P', 0, 0, 0)) | |
| 48 | return enc_eucjp; | |
| 49 | if (STREQ_OPT (encoding, "EUC-KR", 'E', 'U', 'C', '-', 'K', 'R', 0, 0, 0) | |
| 50 | || STREQ_OPT (encoding, "GB2312", 'G', 'B', '2', '3', '1', '2', 0, 0, 0) | |
| 51 | || STREQ_OPT (encoding, "BIG5", 'B', 'I', 'G', '5', 0, 0, 0, 0, 0)) | |
| 52 | return enc_94; | |
| 53 | if (STREQ_OPT (encoding, "EUC-TW", 'E', 'U', 'C', '-', 'T', 'W', 0, 0, 0)) | |
| 54 | return enc_euctw; | |
| 55 | if (STREQ_OPT (encoding, "GB18030", 'G', 'B', '1', '8', '0', '3', '0', 0, 0)) | |
| 56 | return enc_gb18030; | |
| 57 | if (STREQ_OPT (encoding, "SJIS", 'S', 'J', 'I', 'S', 0, 0, 0, 0, 0)) | |
| 58 | return enc_sjis; | |
| 59 | return enc_other; | |
| 60 | } | |
| 61 | ||
| 62 | # if GNULIB_WCHAR_SINGLE | |
| 63 | ||
| 64 | static int cached_locale_enc = -1; | |
| 65 | ||
| 66 | enc_t | |
| 67 | locale_encoding_classification_cached (void) | |
| 68 | { | |
| 69 | if (cached_locale_enc < 0) | |
| 70 | cached_locale_enc = locale_encoding_classification_uncached (); | |
| 71 | return cached_locale_enc; | |
| 72 | } | |
| 73 | ||
| 74 | # endif | |
| 75 | ||
| 76 | #else | |
| 77 | ||
| 78 | /* This declaration is solely to ensure that after preprocessing | |
| 79 | this file is never empty. */ | |
| 80 | typedef int dummy; | |
| 81 | ||
| 82 | #endif |