include/vis.h

   1 /*      $NetBSD: vis.h,v 1.18 2010/11/27 19:44:54 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
  65 /*
  66  * unvis return codes
  67  */
  68 #define UNVIS_VALID      1      /* character valid */
  69 #define UNVIS_VALIDPUSH  2      /* character valid, push back passed char */
  70 #define UNVIS_NOCHAR     3      /* valid sequence, no character produced */
  71 #define UNVIS_SYNBAD    -1      /* unrecognized escape sequence */
  72 #define UNVIS_ERROR     -2      /* decoder in unknown state (unrecoverable) */
  73
  74 /*
  75  * unvis flags
  76  */
  77 #define UNVIS_END       1       /* no more characters */
  78
  79 #include <sys/cdefs.h>
  80
  81 __BEGIN_DECLS
  82 char    *vis(char *, int, int, int);
  83 char    *svis(char *, int, int, int, const char *);
  84 int     strvis(char *, const char *, int);
  85 int     strsvis(char *, const char *, int, const char *);
  86 int     strvisx(char *, const char *, size_t, int);
  87 int     strsvisx(char *, const char *, size_t, int, const char *);
  88 int     strunvis(char *, const char *);
  89 int     strunvisx(char *, const char *, int);
  90 #ifndef __LIBC12_SOURCE__
  91 int     unvis(char *, int, int *, int) __RENAME(__unvis13);
  92 #endif
  93 __END_DECLS
  94
  95 #endif /* !_VIS_H_ */