| /* Search for some characters in UTF-32 string. |
| Copyright (C) 1999, 2002, 2006, 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" |
| |
| #define FUNC u32_strpbrk |
| #define UNIT uint32_t |
| #define U_STRCHR u32_strchr |
| |
| UNIT * |
| FUNC (const UNIT *str, const UNIT *accept) |
| { |
| /* Optimize two cases. */ |
| if (accept[0] == 0) |
| return NULL; |
| if (accept[1] == 0) |
| { |
| ucs4_t uc = accept[0]; |
| const UNIT *ptr = str; |
| for (; *ptr != 0; ptr++) |
| if (*ptr == uc) |
| return (UNIT *) ptr; |
| return NULL; |
| } |
| /* General case. */ |
| { |
| const UNIT *ptr = str; |
| for (; *ptr != 0; ptr++) |
| if (U_STRCHR (accept, *ptr)) |
| return (UNIT *) ptr; |
| return NULL; |
| } |
| } |