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/* $NetBSD: vis.h,v 1.10.6.1 1999/12/27 18:29:22 wrstuden Exp $ */

/*-
* Copyright (c) 1990, 1993
* The Regents of the University of California. 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.
* 3. All advertising materials mentioning features or use of this software
* must display the following acknowledgement:
* This product includes software developed by the University of
* California, Berkeley and its contributors.
* 4. Neither the name of the University nor the names of its contributors
* may be used to endorse or promote products derived from this software
* without specific prior written permission.
*
* THIS SOFTWARE IS PROVIDED BY THE REGENTS 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 REGENTS 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.
*
* @(#)vis.h 8.1 (Berkeley) 6/2/93
*/

#ifndef _VIS_H_
#define _VIS_H_

/*
* to select alternate encoding format
*/
#define VIS_OCTAL 0x01 /* use octal \ddd format */
#define VIS_CSTYLE 0x02 /* use \[nrft0..] where appropiate */

/*
* to alter set of characters encoded (default is to encode all
* non-graphic except space, tab, and newline).
*/
#define VIS_SP 0x04 /* also encode space */
#define VIS_TAB 0x08 /* also encode tab */
#define VIS_NL 0x10 /* also encode newline */
#define VIS_WHITE (VIS_SP | VIS_TAB | VIS_NL)
#define VIS_SAFE 0x20 /* only encode "unsafe" characters */

/*
* other
*/
#define VIS_NOSLASH 0x40 /* inhibit printing '\' */

/*
* unvis return codes
*/
#define UNVIS_VALID 1 /* character valid */
#define UNVIS_VALIDPUSH 2 /* character valid, push back passed char */
#define UNVIS_NOCHAR 3 /* valid sequence, no character produced */
#define UNVIS_SYNBAD -1 /* unrecognized escape sequence */
#define UNVIS_ERROR -2 /* decoder in unknown state (unrecoverable) */

/*
* unvis flags
*/
#define UNVIS_END 1 /* no more characters */

#include <sys/cdefs.h>

__BEGIN_DECLS
char *vis __P((char *, int, int, int));
char *svis __P((char *, int, int, int, const char *));
int strvis __P((char *, const char *, int));
int strsvis __P((char *, const char *, int, const char *));
int strvisx __P((char *, const char *, size_t, int));
int strsvisx __P((char *, const char *, size_t, int, const char *));
int strunvis __P((char *, const char *));
#ifdef __LIBC12_SOURCE__
int unvis __P((char *, int, int *, int));
int __unvis13 __P((char *, int, int *, int));
#else
int unvis __P((char *, int, int *, int)) __RENAME(__unvis13);
#endif
__END_DECLS

#endif /* !_VIS_H_ */
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