1/* $NetBSD: vis.h,v 1.19 2011/03/12 19:52:45 christos Exp $ */ 2 3/*- 4 * Copyright (c) 1990, 1993 5 * The Regents of the University of California. All rights reserved. 6 * 7 * Redistribution and use in source and binary forms, with or without 8 * modification, are permitted provided that the following conditions 9 * are met: 10 * 1. Redistributions of source code must retain the above copyright 11 * notice, this list of conditions and the following disclaimer. 12 * 2. Redistributions in binary form must reproduce the above copyright 13 * notice, this list of conditions and the following disclaimer in the 14 * documentation and/or other materials provided with the distribution. 15 * 3. Neither the name of the University nor the names of its contributors 16 * may be used to endorse or promote products derived from this software 17 * without specific prior written permission. 18 * 19 * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND 20 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE 21 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE 22 * ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE 23 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL 24 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS 25 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 26 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT 27 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY 28 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF 29 * SUCH DAMAGE. 30 * 31 * @(#)vis.h 8.1 (Berkeley) 6/2/93 32 */ 33 34#ifndef _VIS_H_ 35#define _VIS_H_ 36 37/* 38 * to select alternate encoding format 39 */ 40#define VIS_OCTAL 0x001 /* use octal \ddd format */ 41#define VIS_CSTYLE 0x002 /* use \[nrft0..] where appropiate */ 42 43/* 44 * to alter set of characters encoded (default is to encode all 45 * non-graphic except space, tab, and newline). 46 */ 47#define VIS_SP 0x004 /* also encode space */ 48#define VIS_TAB 0x008 /* also encode tab */ 49#define VIS_NL 0x010 /* also encode newline */ 50#define VIS_WHITE (VIS_SP | VIS_TAB | VIS_NL) 51#define VIS_SAFE 0x020 /* only encode "unsafe" characters */ 52 53/* 54 * other 55 */ 56#define VIS_NOSLASH 0x040 /* inhibit printing '\' */ 57#define VIS_HTTP1808 0x080 /* http-style escape % hex hex */ 58#define VIS_HTTPSTYLE 0x080 /* http-style escape % hex hex */ 59#define VIS_MIMESTYLE 0x100 /* mime-style escape = HEX HEX */ 60#define VIS_HTTP1866 0x200 /* http-style &#num; or &string; */ 61#define VIS_NOESCAPE 0x400 /* don't decode `\' */ 62#define _VIS_END 0x800 /* for unvis */ 63 64/* 65 * unvis return codes 66 */ 67#define UNVIS_VALID 1 /* character valid */ 68#define UNVIS_VALIDPUSH 2 /* character valid, push back passed char */ 69#define UNVIS_NOCHAR 3 /* valid sequence, no character produced */ 70#define UNVIS_SYNBAD -1 /* unrecognized escape sequence */ 71#define UNVIS_ERROR -2 /* decoder in unknown state (unrecoverable) */ 72 73/* 74 * unvis flags 75 */ 76#define UNVIS_END _VIS_END /* no more characters */ 77 78__BEGIN_DECLS 79char *vis(char *, int, int, int); 80char *nvis(char *, size_t, int, int, int); 81 82char *svis(char *, int, int, int, const char *); 83char *snvis(char *, size_t, int, int, int, const char *); 84 85int strvis(char *, const char *, int); 86int strnvis(char *, size_t, const char *, int); 87 88int strsvis(char *, const char *, int, const char *); 89int strsnvis(char *, size_t, const char *, int, const char *); 90 91int strvisx(char *, const char *, size_t, int); 92int strnvisx(char *, size_t, const char *, size_t, int); 93 94int strsvisx(char *, const char *, size_t, int, const char *); 95int strsnvisx(char *, size_t, const char *, size_t, int, const char *); 96 97int strunvis(char *, const char *); 98int strnunvis(char *, size_t, const char *); 99 100int strunvisx(char *, const char *, int); 101int strnunvisx(char *, size_t, const char *, int); 102 103#ifndef __LIBC12_SOURCE__ 104int unvis(char *, int, int *, int); 105#endif 106__END_DECLS 107 108#endif /* !_VIS_H_ */ 109