git.saurik.com Git - apple/libc.git/blame_incremental

... / ...

Commit	Line	Data
	1	/*-
	2	* Copyright (c) 2002 Tim J. Robbins.
	3	* All rights reserved.
	4	*
	5	* Redistribution and use in source and binary forms, with or without
	6	* modification, are permitted provided that the following conditions
	7	* are met:
	8	* 1. Redistributions of source code must retain the above copyright
	9	* notice, this list of conditions and the following disclaimer.
	10	* 2. Redistributions in binary form must reproduce the above copyright
	11	* notice, this list of conditions and the following disclaimer in the
	12	* documentation and/or other materials provided with the distribution.
	13	*
	14	* THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND
	15	* ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
	16	* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
	17	* ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
	18	* FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
	19	* DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
	20	* OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
	21	* HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
	22	* LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
	23	* OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
	24	* SUCH DAMAGE.
	25	*/
	26
	27	#include <sys/cdefs.h>
	28	__FBSDID("$FreeBSD: src/lib/libc/locale/wctrans.c,v 1.2 2002/11/09 05:19:08 tjr Exp $");
	29
	30	#include <ctype.h>
	31	#include <errno.h>
	32	#include <string.h>
	33	#include <wctype.h>
	34
	35	enum {
	36	_WCT_ERROR = 0,
	37	_WCT_TOLOWER = 1,
	38	_WCT_TOUPPER = 2
	39	};
	40
	41	/*
	42	* TODO: Supply a macro version of this.
	43	*/
	44	wint_t
	45	towctrans(wint_t wc, wctrans_t desc)
	46	{
	47
	48	switch (desc) {
	49	case _WCT_TOLOWER:
	50	wc = towlower(wc);
	51	break;
	52	case _WCT_TOUPPER:
	53	wc = towupper(wc);
	54	break;
	55	case _WCT_ERROR:
	56	default:
	57	errno = EINVAL;
	58	break;
	59	}
	60
	61	return (wc);
	62	}
	63
	64	wctrans_t
	65	wctrans(const char *charclass)
	66	{
	67	struct {
	68	const char *name;
	69	wctrans_t trans;
	70	} ccls[] = {
	71	{ "tolower", _WCT_TOLOWER },
	72	{ "toupper", _WCT_TOUPPER },
	73	{ NULL, _WCT_ERROR }, /* Default */
	74	};
	75	int i;
	76
	77	i = 0;
	78	while (ccls[i].name != NULL && strcmp(ccls[i].name, charclass) != 0)
	79	i++;
	80
	81	if (ccls[i].trans == _WCT_ERROR)
	82	errno = EINVAL;
	83	return (ccls[i].trans);
	84	}