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60 lines
1.5 KiB
C
60 lines
1.5 KiB
C
/* Copyright (C) 1991, 1997 Free Software Foundation, Inc.
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NOTE: The canonical source of this file is maintained with the GNU
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C Library. Bugs can be reported to bug-glibc@prep.ai.mit.edu.
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This program is free software; you can redistribute it and/or
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modify it under the terms of the GNU Library General Public License
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as published by the Free Software Foundation; either version 2 of
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the License, or (at your option) any later version.
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This program is distributed in the hope that it will be useful, but
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WITHOUT ANY WARRANTY; without even the implied warranty of
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MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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Library General Public License for more details.
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You should have received a copy of the GNU Library General Public
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License along with this program; see the file COPYING.LIB. If not,
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write to the Free Software Foundation, Inc., 59 Temple Place -
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Suite 330, Boston, MA 02111-1307, USA. */
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#if HAVE_CONFIG_H
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# include <config.h>
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#endif
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#if defined _LIBC || HAVE_STRING_H
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# include <string.h>
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#else
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# include <strings.h>
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# ifndef strchr
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# define strchr index
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# endif
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#endif
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#undef strspn
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/* Return the length of the maximum initial segment
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of S which contains only characters in ACCEPT. */
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size_t
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strspn (s, accept)
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const char *s;
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const char *accept;
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{
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const char *p;
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const char *a;
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size_t count = 0;
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for (p = s; *p != '\0'; ++p)
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{
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for (a = accept; *a != '\0'; ++a)
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if (*p == *a)
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break;
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if (*a == '\0')
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return count;
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else
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++count;
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}
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return count;
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}
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