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	1	/*
	2	* Copyright (c) 2000 Apple Computer, Inc. All rights reserved.
	3	*
	4	* @APPLE_LICENSE_HEADER_START@
	5	*
	6	* This file contains Original Code and/or Modifications of Original Code
	7	* as defined in and that are subject to the Apple Public Source License
	8	* Version 2.0 (the 'License'). You may not use this file except in
	9	* compliance with the License. Please obtain a copy of the License at
	10	* http://www.opensource.apple.com/apsl/ and read it before using this
	11	* file.
	12	*
	13	* The Original Code and all software distributed under the License are
	14	* distributed on an 'AS IS' basis, WITHOUT WARRANTY OF ANY KIND, EITHER
	15	* EXPRESS OR IMPLIED, AND APPLE HEREBY DISCLAIMS ALL SUCH WARRANTIES,
	16	* INCLUDING WITHOUT LIMITATION, ANY WARRANTIES OF MERCHANTABILITY,
	17	* FITNESS FOR A PARTICULAR PURPOSE, QUIET ENJOYMENT OR NON-INFRINGEMENT.
	18	* Please see the License for the specific language governing rights and
	19	* limitations under the License.
	20	*
	21	* @APPLE_LICENSE_HEADER_END@
	22	*/
	23	/* $NetBSD: vis.h,v 1.21 2013/02/20 17:01:15 christos Exp $ */
	24	/* $FreeBSD$ */
	25
	26	/*-
	27	* Copyright (c) 1990, 1993
	28	* The Regents of the University of California. All rights reserved.
	29	*
	30	* Redistribution and use in source and binary forms, with or without
	31	* modification, are permitted provided that the following conditions
	32	* are met:
	33	* 1. Redistributions of source code must retain the above copyright
	34	* notice, this list of conditions and the following disclaimer.
	35	* 2. Redistributions in binary form must reproduce the above copyright
	36	* notice, this list of conditions and the following disclaimer in the
	37	* documentation and/or other materials provided with the distribution.
	38	* 3. Neither the name of the University nor the names of its contributors
	39	* may be used to endorse or promote products derived from this software
	40	* without specific prior written permission.
	41	*
	42	* THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
	43	* ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
	44	* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
	45	* ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
	46	* FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
	47	* DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
	48	* OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
	49	* HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
	50	* LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
	51	* OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
	52	* SUCH DAMAGE.
	53	*
	54	* @(#)vis.h 8.1 (Berkeley) 6/2/93
	55	*/
	56
	57	#ifndef _VIS_H_
	58	#define _VIS_H_
	59
	60	#include <_types.h>
	61	#include <sys/_types/_size_t.h>
	62
	63	/*
	64	* to select alternate encoding format
	65	*/
	66	#define VIS_OCTAL 0x0001 /* use octal \ddd format */
	67	#define VIS_CSTYLE 0x0002 /* use \[nrft0..] where appropiate */
	68
	69	/*
	70	* to alter set of characters encoded (default is to encode all
	71	* non-graphic except space, tab, and newline).
	72	*/
	73	#define VIS_SP 0x0004 /* also encode space */
	74	#define VIS_TAB 0x0008 /* also encode tab */
	75	#define VIS_NL 0x0010 /* also encode newline */
	76	#define VIS_WHITE (VIS_SP \| VIS_TAB \| VIS_NL)
	77	#define VIS_SAFE 0x0020 /* only encode "unsafe" characters */
	78
	79	/*
	80	* other
	81	*/
	82	#define VIS_NOSLASH 0x0040 /* inhibit printing '\' */
	83	#define VIS_HTTP1808 0x0080 /* http-style escape % hex hex */
	84	#define VIS_HTTPSTYLE 0x0080 /* http-style escape % hex hex */
	85	#define VIS_GLOB 0x0100 /* encode glob(3) magic characters */
	86	#define VIS_MIMESTYLE 0x0200 /* mime-style escape = HEX HEX */
	87	#define VIS_HTTP1866 0x0400 /* http-style &#num; or &string; */
	88	#define VIS_NOESCAPE 0x0800 /* don't decode `\' */
	89	#define _VIS_END 0x1000 /* for unvis */
	90
	91	/*
	92	* unvis return codes
	93	*/
	94	#define UNVIS_VALID 1 /* character valid */
	95	#define UNVIS_VALIDPUSH 2 /* character valid, push back passed char */
	96	#define UNVIS_NOCHAR 3 /* valid sequence, no character produced */
	97	#define UNVIS_SYNBAD -1 /* unrecognized escape sequence */
	98	#define UNVIS_ERROR -2 /* decoder in unknown state (unrecoverable) */
	99
	100	/*
	101	* unvis flags
	102	*/
	103	#define UNVIS_END _VIS_END /* no more characters */
	104
	105	#include <sys/cdefs.h>
	106
	107	__BEGIN_DECLS
	108	char vis(char , int, int, int);
	109	char nvis(char , size_t, int, int, int);
	110
	111	char svis(char , int, int, int, const char *);
	112	char snvis(char , size_t, int, int, int, const char *);
	113
	114	int strvis(char , const char , int);
	115	int strnvis(char , size_t, const char , int);
	116
	117	int strsvis(char , const char , int, const char *);
	118	int strsnvis(char , size_t, const char , int, const char *);
	119
	120	int strvisx(char , const char , size_t, int);
	121	int strnvisx(char , size_t, const char , size_t, int);
	122	int strenvisx(char , size_t, const char , size_t, int, int *);
	123
	124	int strsvisx(char , const char , size_t, int, const char *);
	125	int strsnvisx(char , size_t, const char , size_t, int, const char *);
	126	int strsenvisx(char , size_t, const char , size_t , int, const char *,
	127	int *);
	128
	129	int strunvis(char , const char );
	130	int strnunvis(char , size_t, const char );
	131
	132	int strunvisx(char , const char , int);
	133	int strnunvisx(char , size_t, const char , int);
	134
	135	int unvis(char , int, int , int);
	136	__END_DECLS
	137
	138	#endif /* !_VIS_H_ */