1*2fe8fb19SBen Gras /* $NetBSD: wcio.h,v 1.3 2003/01/18 11:30:00 thorpej Exp $ */ 2*2fe8fb19SBen Gras 3*2fe8fb19SBen Gras /*- 4*2fe8fb19SBen Gras * Copyright (c)2001 Citrus Project, 5*2fe8fb19SBen Gras * All rights reserved. 6*2fe8fb19SBen Gras * 7*2fe8fb19SBen Gras * Redistribution and use in source and binary forms, with or without 8*2fe8fb19SBen Gras * modification, are permitted provided that the following conditions 9*2fe8fb19SBen Gras * are met: 10*2fe8fb19SBen Gras * 1. Redistributions of source code must retain the above copyright 11*2fe8fb19SBen Gras * notice, this list of conditions and the following disclaimer. 12*2fe8fb19SBen Gras * 2. Redistributions in binary form must reproduce the above copyright 13*2fe8fb19SBen Gras * notice, this list of conditions and the following disclaimer in the 14*2fe8fb19SBen Gras * documentation and/or other materials provided with the distribution. 15*2fe8fb19SBen Gras * 16*2fe8fb19SBen Gras * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND 17*2fe8fb19SBen Gras * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE 18*2fe8fb19SBen Gras * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE 19*2fe8fb19SBen Gras * ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE 20*2fe8fb19SBen Gras * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL 21*2fe8fb19SBen Gras * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS 22*2fe8fb19SBen Gras * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 23*2fe8fb19SBen Gras * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT 24*2fe8fb19SBen Gras * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY 25*2fe8fb19SBen Gras * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF 26*2fe8fb19SBen Gras * SUCH DAMAGE. 27*2fe8fb19SBen Gras * 28*2fe8fb19SBen Gras * $Citrus$ 29*2fe8fb19SBen Gras */ 30*2fe8fb19SBen Gras 31*2fe8fb19SBen Gras #ifndef _WCIO_H_ 32*2fe8fb19SBen Gras #define _WCIO_H_ 33*2fe8fb19SBen Gras 34*2fe8fb19SBen Gras #include <wchar.h> /* for mbstate_t and wchar_t */ 35*2fe8fb19SBen Gras 36*2fe8fb19SBen Gras /* minimal requirement of SUSv2 */ 37*2fe8fb19SBen Gras #define WCIO_UNGETWC_BUFSIZE 1 38*2fe8fb19SBen Gras 39*2fe8fb19SBen Gras struct wchar_io_data { 40*2fe8fb19SBen Gras mbstate_t wcio_mbstate_in; 41*2fe8fb19SBen Gras mbstate_t wcio_mbstate_out; 42*2fe8fb19SBen Gras 43*2fe8fb19SBen Gras wchar_t wcio_ungetwc_buf[WCIO_UNGETWC_BUFSIZE]; 44*2fe8fb19SBen Gras size_t wcio_ungetwc_inbuf; 45*2fe8fb19SBen Gras 46*2fe8fb19SBen Gras int wcio_mode; /* orientation */ 47*2fe8fb19SBen Gras }; 48*2fe8fb19SBen Gras 49*2fe8fb19SBen Gras #define _SET_ORIENTATION(fp, mode) \ 50*2fe8fb19SBen Gras do {\ 51*2fe8fb19SBen Gras struct wchar_io_data *_wcio = WCIO_GET(fp);\ 52*2fe8fb19SBen Gras if (_wcio && _wcio->wcio_mode == 0)\ 53*2fe8fb19SBen Gras _wcio->wcio_mode = (mode);\ 54*2fe8fb19SBen Gras } while (/*CONSTCOND*/0) 55*2fe8fb19SBen Gras 56*2fe8fb19SBen Gras /* 57*2fe8fb19SBen Gras * WCIO_FREE should be called by fclose 58*2fe8fb19SBen Gras */ 59*2fe8fb19SBen Gras #define WCIO_GET(fp) (&(_EXT(fp)->_wcio)) 60*2fe8fb19SBen Gras #define WCIO_FREE(fp) \ 61*2fe8fb19SBen Gras do {\ 62*2fe8fb19SBen Gras _EXT(fp)->_wcio.wcio_mode = 0;\ 63*2fe8fb19SBen Gras WCIO_FREEUB(fp);\ 64*2fe8fb19SBen Gras } while (/*CONSTCOND*/0) 65*2fe8fb19SBen Gras #define WCIO_FREEUB(fp) \ 66*2fe8fb19SBen Gras do {\ 67*2fe8fb19SBen Gras _EXT(fp)->_wcio.wcio_ungetwc_inbuf = 0;\ 68*2fe8fb19SBen Gras } while (/*CONSTCOND*/0) 69*2fe8fb19SBen Gras 70*2fe8fb19SBen Gras #endif /*_WCIO_H_*/ 71