vis.h

/*  $NetBSD: vis.h,v 1.16 2005/09/13 01:44:32 christos 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. 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_
 
#include <sys/types.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 '\' */
#define VIS_HTTPSTYLE   0x80    /* http-style escape % HEX HEX */
 
/*
 * 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);
#ifndef __LIBC12_SOURCE__
//int   unvis(char *, int, int *, int) __RENAME(__unvis13);
#endif
__END_DECLS
 
#endif /* !_VIS_H_ */