| /* |
| FUNCTION |
| <<wcsspn>>---get length of a wide substring |
| |
| ANSI_SYNOPSIS |
| #include <wchar.h> |
| size_t wcsspn(const wchar_t *<[s]>, const wchar_t *<[set]>); |
| |
| TRAD_SYNOPSIS |
| size_t wcsspn(<[s]>, <[set]> |
| const wchar_t *<[s]>; |
| const wchar_t *<[set]>; |
| |
| DESCRIPTION |
| The <<wcsspn>> function computes the length of the maximum initial |
| segment of the wide-character string pointed to by <[s]> which consists |
| entirely of wide-character codes from the wide-character string |
| pointed to by <[set]>. |
| |
| RETURNS |
| The wcsspn() function returns the length <[s1]>; no return value is |
| reserved to indicate an error. |
| |
| PORTABILITY |
| <<wcsspn>> is ISO/IEC 9899/AMD1:1995 (ISO C). |
| |
| No supporting OS subroutines are required. |
| */ |
| |
| /* $NetBSD: wcsspn.c,v 1.1 2000/12/23 23:14:37 itojun Exp $ */ |
| |
| /*- |
| * Copyright (c)1999 Citrus Project, |
| * All rights reserved. |
| * |
| * Redistribution and use in source and binary forms, with or without |
| * modification, are permitted provided that the following conditions |
| * are met: |
| * 1. Redistributions of source code must retain the above copyright |
| * notice, this list of conditions and the following disclaimer. |
| * 2. Redistributions in binary form must reproduce the above copyright |
| * notice, this list of conditions and the following disclaimer in the |
| * documentation and/or other materials provided with the distribution. |
| * |
| * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND |
| * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE |
| * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE |
| * ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE |
| * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL |
| * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS |
| * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) |
| * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT |
| * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY |
| * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF |
| * SUCH DAMAGE. |
| * |
| * citrus Id: wcsspn.c,v 1.1 1999/12/29 21:47:45 tshiozak Exp |
| */ |
| |
| #include <_ansi.h> |
| #include <wchar.h> |
| |
| size_t |
| _DEFUN (wcsspn, (s, set), |
| _CONST wchar_t * s _AND |
| _CONST wchar_t * set) |
| { |
| _CONST wchar_t *p; |
| _CONST wchar_t *q; |
| |
| p = s; |
| while (*p) |
| { |
| q = set; |
| while (*q) |
| { |
| if (*p == *q) |
| break; |
| q++; |
| } |
| if (!*q) |
| goto done; |
| p++; |
| } |
| |
| done: |
| return (p - s); |
| } |