NetBSD/include/vis.h

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/* $NetBSD: vis.h,v 1.17 2009/02/10 23:06:31 christos Exp $ */
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/*-
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* Copyright (c) 1990, 1993
* The Regents of the University of California. All rights reserved.
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*
* 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. Neither the name of the University nor the names of its contributors
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* 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.
*
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* @(#)vis.h 8.1 (Berkeley) 6/2/93
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*/
#ifndef _VIS_H_
#define _VIS_H_
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#include <sys/types.h>
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/*
* to select alternate encoding format
*/
#define VIS_OCTAL 0x001 /* use octal \ddd format */
#define VIS_CSTYLE 0x002 /* use \[nrft0..] where appropiate */
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/*
* to alter set of characters encoded (default is to encode all
* non-graphic except space, tab, and newline).
*/
#define VIS_SP 0x004 /* also encode space */
#define VIS_TAB 0x008 /* also encode tab */
#define VIS_NL 0x010 /* also encode newline */
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#define VIS_WHITE (VIS_SP | VIS_TAB | VIS_NL)
#define VIS_SAFE 0x020 /* only encode "unsafe" characters */
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/*
* other
*/
#define VIS_NOSLASH 0x040 /* inhibit printing '\' */
#define VIS_HTTPSTYLE 0x080 /* http-style escape % hex hex */
#define VIS_MIMESTYLE 0x100 /* mime-style escape = HEX HEX */
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/*
* 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(char *, int, int, int);
char *svis(char *, int, int, int, const char *);
int strvis(char *, const char *, int);
int strsvis(char *, const char *, int, const char *);
int strvisx(char *, const char *, size_t, int);
int strsvisx(char *, const char *, size_t, int, const char *);
int strunvis(char *, const char *);
int strunvisx(char *, const char *, int);
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#ifndef __LIBC12_SOURCE__
int unvis(char *, int, int *, int) __RENAME(__unvis13);
#endif
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__END_DECLS
#endif /* !_VIS_H_ */