| /* Look at first character in UTF-32 string. |
| Copyright (C) 2002, 2006-2007, 2009-2020 Free Software Foundation, Inc. |
| Written by Bruno Haible <bruno@clisp.org>, 2002. |
| |
| This program 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 program 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/>. */ |
| |
| #include <config.h> |
| |
| /* Specification. */ |
| #include "unistr.h" |
| |
| int |
| u32_strmblen (const uint32_t *s) |
| { |
| uint32_t c = *s; |
| |
| if (c < 0xd800 || (c >= 0xe000 && c < 0x110000)) |
| return (c != 0 ? 1 : 0); |
| /* invalid multibyte character */ |
| return -1; |
| } |