144 lines
3.9 KiB
C
144 lines
3.9 KiB
C
/* Copyright (c) 2002 Red Hat Incorporated.
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All rights reserved.
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Redistribution and use in source and binary forms, with or without
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modification, are permitted provided that the following conditions are met:
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Redistributions of source code must retain the above copyright
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notice, this list of conditions and the following disclaimer.
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Redistributions in binary form must reproduce the above copyright
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notice, this list of conditions and the following disclaimer in the
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documentation and/or other materials provided with the distribution.
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The name of Red Hat Incorporated may not be used to endorse
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or promote products derived from this software without specific
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prior written permission.
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THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
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AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
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IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
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ARE DISCLAIMED. IN NO EVENT SHALL RED HAT INCORPORATED BE LIABLE FOR ANY
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DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES
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(INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
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LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND
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ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
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(INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS
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SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
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*/
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/*
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FUNCTION
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<<wctype>>, <<wctype_l>>---get wide-character classification type
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INDEX
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wctype
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INDEX
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wctype_l
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SYNOPSIS
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#include <wctype.h>
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wctype_t wctype(const char *<[c]>);
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#include <wctype.h>
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wctype_t wctype_l(const char *<[c]>, locale_t <[locale]>);
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DESCRIPTION
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<<wctype>> is a function which takes a string <[c]> and gives back
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the appropriate wctype_t type value associated with the string,
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if one exists. The following values are guaranteed to be recognized:
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"alnum", "alpha", "blank", "cntrl", "digit", "graph", "lower", "print",
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"punct", "space", "upper", and "xdigit".
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<<wctype_l>> is like <<wctype>> but performs the function based on the
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locale specified by the locale object locale. If <[locale]> is
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LC_GLOBAL_LOCALE or not a valid locale object, the behaviour is undefined.
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RETURNS
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<<wctype>>, <<wctype_l>> return 0 and sets <<errno>> to <<EINVAL>> if the
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given name is invalid. Otherwise, it returns a valid non-zero wctype_t
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value.
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PORTABILITY
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<<wctype>> is C99.
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<<wctype_l>> is POSIX-1.2008.
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No supporting OS subroutines are required.
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*/
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#include <_ansi.h>
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#include <string.h>
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#include <reent.h>
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#include <wctype.h>
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#include <errno.h>
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#include "local.h"
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wctype_t
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_DEFUN (_wctype_r, (r, c),
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struct _reent *r,
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const char *c)
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{
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switch (*c)
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{
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case 'a':
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if (!strcmp (c, "alnum"))
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return WC_ALNUM;
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else if (!strcmp (c, "alpha"))
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return WC_ALPHA;
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break;
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case 'b':
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if (!strcmp (c, "blank"))
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return WC_BLANK;
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break;
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case 'c':
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if (!strcmp (c, "cntrl"))
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return WC_CNTRL;
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break;
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case 'd':
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if (!strcmp (c, "digit"))
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return WC_DIGIT;
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break;
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case 'g':
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if (!strcmp (c, "graph"))
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return WC_GRAPH;
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break;
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case 'l':
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if (!strcmp (c, "lower"))
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return WC_LOWER;
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break;
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case 'p':
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if (!strcmp (c, "print"))
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return WC_PRINT;
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else if (!strcmp (c, "punct"))
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return WC_PUNCT;
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break;
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case 's':
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if (!strcmp (c, "space"))
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return WC_SPACE;
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break;
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case 'u':
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if (!strcmp (c, "upper"))
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return WC_UPPER;
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break;
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case 'x':
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if (!strcmp (c, "xdigit"))
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return WC_XDIGIT;
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break;
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}
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/* otherwise invalid */
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r->_errno = EINVAL;
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return 0;
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}
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#ifndef _REENT_ONLY
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wctype_t
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_DEFUN (wctype, (c),
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const char *c)
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{
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return _wctype_r (_REENT, c);
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}
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#endif /* !_REENT_ONLY */
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