pmt: revert 7f8090b

include/libgnulib/bcp47.h

@@ -1,75 +0,0 @@
-/* Support for locale names in BCP 47 syntax.
-   Copyright (C) 2024 Free Software Foundation, Inc.
-
-   This file 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 3 of the
-   License, or (at your option) any later version.
-
-   This file 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 this program.  If not, see <https://www.gnu.org/licenses/>.  */
-
-/* Written by Bruno Haible <bruno@clisp.org>, 2024.  */
-
-#ifndef _BCP47_H
-#define _BCP47_H
-
-/* A locale name can exist in three possible forms:
-
-     * The XPG syntax
-         language[_territory][.codeset][@modifier]
-       where
-         - The language is an ISO 639 (two-letter) language code.
-         - The territory is an ISO 3166 (two-letter) country code.
-         - The codeset is typically UTF-8.
-         - The supported @modifiers are usually something like
-             @euro
-             a script indicator, such as: @latin, @cyrillic, @devanagari
-
-     * The locale name understood by setlocale().
-       On glibc and many other Unix-like systems, this is the XPG syntax.
-       On native Windows, it is similar to XPG syntax, with English names
-       (instead of ISO codes) for the language and territory and with a
-       number for the codeset (e.g. 65001 for UTF-8).
-
-     * The BCP 47 syntax
-         language[-script][-region]{-variant}*{-extension}*
-       defined in
-         <https://www.ietf.org/rfc/bcp/bcp47.html>
-         = <https://www.rfc-editor.org/rfc/bcp/bcp47.txt>
-       which consists of RFC 5646 and RFC 4647.
-       See also <https://en.wikipedia.org/wiki/IETF_language_tag>.
-       Note: The BCP 47 syntax does not include a codeset.
-
-   This file provides conversions between the XPG syntax and the BCP 47
-   syntax.  */
-
-#ifdef __cplusplus
-extern "C" {
-#endif
-
-/* Required size of buffer for a locale name.  */
-#define BCP47_MAX 100
-
-/* Converts a locale name in XPG syntax to a locale name in BCP 47 syntax.
-   Returns the result in bcp47, which must be at least BCP47_MAX bytes
-   large.  */
-extern void xpg_to_bcp47 (char *bcp47, const char *xpg);
-
-/* Converts a locale name in BCP 47 syntax (optionally with a codeset)
-   to a locale name in XPG syntax.
-   The specified codeset may be NULL.
-   Returns the result in xpg, which must be at least BCP47_MAX bytes
-   large.  */
-extern void bcp47_to_xpg (char *xpg, const char *bcp47, const char *codeset);
-
-#ifdef __cplusplus
-}
-#endif
-
-#endif /* _BCP47_H */