readline/rldefs.h

   1 /* rldefs.h -- an attempt to isolate some of the system-specific defines
   2    for readline.  This should be included after any files that define
   3    system-specific constants like _POSIX_VERSION or USG. */
   4
   5 /* Copyright (C) 1987,1989 Free Software Foundation, Inc.
   6
   7    This file contains the Readline Library (the Library), a set of
   8    routines for providing Emacs style line input to programs that ask
   9    for it.
  10
  11    The Library is free software; you can redistribute it and/or modify
  12    it under the terms of the GNU General Public License as published by
  13    the Free Software Foundation; either version 2, or (at your option)
  14    any later version.
  15
  16    The Library is distributed in the hope that it will be useful, but
  17    WITHOUT ANY WARRANTY; without even the implied warranty of
  18    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
  19    General Public License for more details.
  20
  21    The GNU General Public License is often shipped with GNU software, and
  22    is generally kept in a file called COPYING or LICENSE.  If you do not
  23    have a copy of the license, write to the Free Software Foundation,
  24    59 Temple Place, Suite 330, Boston, MA 02111 USA. */
  25
  26 #if !defined (_RLDEFS_H_)
  27 #define _RLDEFS_H_
  28
  29 #if defined (HAVE_CONFIG_H)
  30 #  include "config.h"
  31 #endif
  32
  33 #if defined (_POSIX_VERSION) && !defined (TERMIOS_MISSING)
  34 #  define TERMIOS_TTY_DRIVER
  35 #else
  36 #  if defined (HAVE_TERMIO_H)
  37 #    define TERMIO_TTY_DRIVER
  38 #  else
  39 #    define NEW_TTY_DRIVER
  40 #  endif
  41 #endif
  42
  43 /* Posix macro to check file in statbuf for directory-ness.
  44    This requires that <sys/stat.h> be included before this test. */
  45 #if defined (S_IFDIR) && !defined (S_ISDIR)
  46 #  define S_ISDIR(m) (((m)&S_IFMT) == S_IFDIR)
  47 #endif
  48
  49 /* Decide which flavor of the header file describing the C library
  50    string functions to include and include it. */
  51
  52 #if defined (HAVE_STRING_H)
  53 #  include <string.h>
  54 #else /* !HAVE_STRING_H */
  55 #  include <strings.h>
  56 #endif /* !HAVE_STRING_H */
  57
  58 #if !defined (strchr) && !defined (__STDC__)
  59 extern char *strchr (), *strrchr ();
  60 #endif /* !strchr && !__STDC__ */
  61
  62 #if defined (PREFER_STDARG)
  63 #  include <stdarg.h>
  64 #else
  65 #  if defined (PREFER_VARARGS)
  66 #    include <varargs.h>
  67 #  endif
  68 #endif
  69
  70 #if defined (HAVE_STRCASECMP)
  71 #define _rl_stricmp strcasecmp
  72 #define _rl_strnicmp strncasecmp
  73 #else
  74 extern int _rl_stricmp (), _rl_strnicmp ();
  75 #endif
  76
  77 #if !defined (emacs_mode)
  78 #  define no_mode -1
  79 #  define vi_mode 0
  80 #  define emacs_mode 1
  81 #endif
  82
  83 /* If you cast map[key].function to type (Keymap) on a Cray,
  84    the compiler takes the value of map[key].function and
  85    divides it by 4 to convert between pointer types (pointers
  86    to functions and pointers to structs are different sizes).
  87    This is not what is wanted. */
  88 #if defined (CRAY)
  89 #  define FUNCTION_TO_KEYMAP(map, key)  (Keymap)((int)map[key].function)
  90 #  define KEYMAP_TO_FUNCTION(data)      (Function *)((int)(data))
  91 #else
  92 #  define FUNCTION_TO_KEYMAP(map, key)  (Keymap)(map[key].function)
  93 #  define KEYMAP_TO_FUNCTION(data)      (Function *)(data)
  94 #endif
  95
  96 #ifndef savestring
  97 extern char *xmalloc ();
  98 #define savestring(x) strcpy (xmalloc (1 + strlen (x)), (x))
  99 #endif
 100
 101 /* Possible values for _rl_bell_preference. */
 102 #define NO_BELL 0
 103 #define AUDIBLE_BELL 1
 104 #define VISIBLE_BELL 2
 105
 106 /* Definitions used when searching the line for characters. */
 107 /* NOTE: it is necessary that opposite directions are inverses */
 108 #define FTO      1              /* forward to */
 109 #define BTO     -1              /* backward to */
 110 #define FFIND    2              /* forward find */
 111 #define BFIND   -2              /* backward find */
 112
 113 /* Possible values for the found_quote flags word used by the completion
 114    functions.  It says what kind of (shell-like) quoting we found anywhere
 115    in the line. */
 116 #define RL_QF_SINGLE_QUOTE      0x1
 117 #define RL_QF_DOUBLE_QUOTE      0x2
 118 #define RL_QF_BACKSLASH         0x4
 119
 120 /* Default readline line buffer length. */
 121 #define DEFAULT_BUFFER_SIZE 256
 122
 123 #if !defined (STREQ)
 124 #define STREQ(a, b)     (((a)[0] == (b)[0]) && (strcmp ((a), (b)) == 0))
 125 #define STREQN(a, b, n) (((n) == 0) ? (1) \
 126                                     : ((a)[0] == (b)[0]) && (strncmp ((a), (b), (n)) == 0))
 127 #endif
 128
 129 #if !defined (FREE)
 130 #  define FREE(x)       if (x) free (x)
 131 #endif
 132
 133 /* CONFIGURATION SECTION */
 134 #include "rlconf.h"
 135
 136 #endif /* !_RLDEFS_H_ */