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vis.h
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 #include <sys/types.h>
38 
39 /*
40  * to select alternate encoding format
41  */
42 #define VIS_OCTAL 0x001 /* use octal \ddd format */
43 #define VIS_CSTYLE 0x002 /* use \[nrft0..] where appropiate */
44 
45 /*
46  * to alter set of characters encoded (default is to encode all
47  * non-graphic except space, tab, and newline).
48  */
49 #define VIS_SP 0x004 /* also encode space */
50 #define VIS_TAB 0x008 /* also encode tab */
51 #define VIS_NL 0x010 /* also encode newline */
52 #define VIS_WHITE (VIS_SP | VIS_TAB | VIS_NL)
53 #define VIS_SAFE 0x020 /* only encode "unsafe" characters */
54 
55 /*
56  * other
57  */
58 #define VIS_NOSLASH 0x040 /* inhibit printing '\' */
59 #define VIS_HTTP1808 0x080 /* http-style escape % hex hex */
60 #define VIS_HTTPSTYLE 0x080 /* http-style escape % hex hex */
61 #define VIS_MIMESTYLE 0x100 /* mime-style escape = HEX HEX */
62 #define VIS_HTTP1866 0x200 /* http-style &#num; or &string; */
63 #define VIS_NOESCAPE 0x400 /* don't decode `\' */
64 #define _VIS_END 0x800 /* for unvis */
65 
66 /*
67  * unvis return codes
68  */
69 #define UNVIS_VALID 1 /* character valid */
70 #define UNVIS_VALIDPUSH 2 /* character valid, push back passed char */
71 #define UNVIS_NOCHAR 3 /* valid sequence, no character produced */
72 #define UNVIS_SYNBAD -1 /* unrecognized escape sequence */
73 #define UNVIS_ERROR -2 /* decoder in unknown state (unrecoverable) */
74 
75 /*
76  * unvis flags
77  */
78 #define UNVIS_END _VIS_END /* no more characters */
79 /* XXXMYSQL */
80 #ifndef __RENAME
81 #define __RENAME(x)
82 #endif
83 
84 __BEGIN_DECLS
85 char *vis(char *, int, int, int);
86 char *nvis(char *, size_t, int, int, int);
87 
88 char *svis(char *, int, int, int, const char *);
89 char *snvis(char *, size_t, int, int, int, const char *);
90 
91 int strvis(char *, const char *, int);
92 int strnvis(char *, size_t, const char *, int);
93 
94 int strsvis(char *, const char *, int, const char *);
95 int strsnvis(char *, size_t, const char *, int, const char *);
96 
97 int strvisx(char *, const char *, size_t, int);
98 int strnvisx(char *, size_t, const char *, size_t, int);
99 
100 int strsvisx(char *, const char *, size_t, int, const char *);
101 int strsnvisx(char *, size_t, const char *, size_t, int, const char *);
102 
103 int strunvis(char *, const char *);
104 int strnunvis(char *, size_t, const char *);
105 
106 int strunvisx(char *, const char *, int);
107 int strnunvisx(char *, size_t, const char *, int);
108 
109 #ifndef __LIBC12_SOURCE__
110 int unvis(char *, int, int *, int) __RENAME(__unvis50);
111 #endif
112 __END_DECLS
113 
114 #endif /* !_VIS_H_ */