include/vis.h

   1 /*      $NetBSD: vis.h,v 1.25 2017/04/23 01:57:36 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 <machine/stdint.h>
  38
  39 #ifndef _SIZE_T_DECLARED
  40 #define _SIZE_T_DECLARED
  41 typedef __size_t        size_t;
  42 #endif
  43
  44 /*
  45  * to select alternate encoding format
  46  */
  47 #define VIS_OCTAL       0x0001  /* use octal \ddd format */
  48 #define VIS_CSTYLE      0x0002  /* use \[nrft0..] where appropiate */
  49
  50 /*
  51  * to alter set of characters encoded (default is to encode all
  52  * non-graphic except space, tab, and newline).
  53  */
  54 #define VIS_SP          0x0004  /* also encode space */
  55 #define VIS_TAB         0x0008  /* also encode tab */
  56 #define VIS_NL          0x0010  /* also encode newline */
  57 #define VIS_WHITE       (VIS_SP | VIS_TAB | VIS_NL)
  58 #define VIS_SAFE        0x0020  /* only encode "unsafe" characters */
  59 #define VIS_DQ          0x8000  /* also encode double quotes */
  60 #define VIS_ALL         0x00010000      /* encode all characters */
  61
  62 /*
  63  * other
  64  */
  65 #define VIS_NOSLASH     0x0040  /* inhibit printing '\' */
  66 #define VIS_HTTP1808    0x0080  /* http-style escape % hex hex */
  67 #define VIS_HTTPSTYLE   0x0080  /* http-style escape % hex hex */
  68 #define VIS_MIMESTYLE   0x0100  /* mime-style escape = HEX HEX */
  69 #define VIS_HTTP1866    0x0200  /* http-style &#num; or &string; */
  70 #define VIS_NOESCAPE    0x0400  /* don't decode `\' */
  71 #define _VIS_END        0x0800  /* for unvis */
  72 #define VIS_GLOB        0x1000  /* encode glob(3) magic characters */
  73 #define VIS_SHELL       0x2000  /* encode shell special characters [not glob] */
  74 #define VIS_META        (VIS_WHITE | VIS_GLOB | VIS_SHELL)
  75 #define VIS_NOLOCALE    0x4000  /* encode using the C locale */
  76
  77 /*
  78  * unvis return codes
  79  */
  80 #define UNVIS_VALID      1      /* character valid */
  81 #define UNVIS_VALIDPUSH  2      /* character valid, push back passed char */
  82 #define UNVIS_NOCHAR     3      /* valid sequence, no character produced */
  83 #define UNVIS_SYNBAD    -1      /* unrecognized escape sequence */
  84 #define UNVIS_ERROR     -2      /* decoder in unknown state (unrecoverable) */
  85
  86 /*
  87  * unvis flags
  88  */
  89 #define UNVIS_END       _VIS_END        /* no more characters */
  90
  91 #include <sys/cdefs.h>
  92
  93 __BEGIN_DECLS
  94 char    *vis(char *, int, int, int);
  95 char    *nvis(char *, size_t, int, int, int);
  96
  97 char    *svis(char *, int, int, int, const char *);
  98 char    *snvis(char *, size_t, int, int, int, const char *);
  99
 100 int     strvis(char *, const char *, int);
 101 int     stravis(char **, const char *, int);
 102 int     strnvis(char *, const char *, size_t, int);
 103
 104 int     strsvis(char *, const char *, int, const char *);
 105 int     strsnvis(char *, size_t, const char *, int, const char *);
 106
 107 int     strvisx(char *, const char *, size_t, int);
 108 int     strnvisx(char *, size_t, const char *, size_t, int);
 109 int     strenvisx(char *, size_t, const char *, size_t, int, int *);
 110
 111 int     strsvisx(char *, const char *, size_t, int, const char *);
 112 int     strsnvisx(char *, size_t, const char *, size_t, int, const char *);
 113 int     strsenvisx(char *, size_t, const char *, size_t , int, const char *,
 114     int *);
 115
 116 int     strunvis(char *, const char *);
 117 int     strnunvis(char *, size_t, const char *);
 118
 119 int     strunvisx(char *, const char *, int);
 120 int     strnunvisx(char *, size_t, const char *, int);
 121
 122 int     unvis(char *, int, int *, int);
 123 __END_DECLS
 124
 125 #endif /* !_VIS_H_ */