external/bsd/less/dist/option.h

   1 /*      $NetBSD: option.h,v 1.4 2013/09/04 19:44:21 tron Exp $  */
   2
   3 /*
   4  * Copyright (C) 1984-2012  Mark Nudelman
   5  *
   6  * You may distribute under the terms of either the GNU General Public
   7  * License or the Less License, as specified in the README file.
   8  *
   9  * For more information, see the README file.
  10  */
  11
  12
  13 #define END_OPTION_STRING       ('$')
  14
  15 /*
  16  * Types of options.
  17  */
  18 #define BOOL            01      /* Boolean option: 0 or 1 */
  19 #define TRIPLE          02      /* Triple-valued option: 0, 1 or 2 */
  20 #define NUMBER          04      /* Numeric option */
  21 #define STRING          010     /* String-valued option */
  22 #define NOVAR           020     /* No associated variable */
  23 #define REPAINT         040     /* Repaint screen after toggling option */
  24 #define NO_TOGGLE       0100    /* Option cannot be toggled with "-" cmd */
  25 #define HL_REPAINT      0200    /* Repaint hilites after toggling option */
  26 #define NO_QUERY        0400    /* Option cannot be queried with "_" cmd */
  27 #define INIT_HANDLER    01000   /* Call option handler function at startup */
  28
  29 #define OTYPE           (BOOL|TRIPLE|NUMBER|STRING|NOVAR)
  30
  31 #define OLETTER_NONE    '\1'     /* Invalid option letter */
  32
  33 /*
  34  * Argument to a handling function tells what type of activity:
  35  */
  36 #define INIT    0       /* Initialization (from command line) */
  37 #define QUERY   1       /* Query (from _ or - command) */
  38 #define TOGGLE  2       /* Change value (from - command) */
  39
  40 /* Flag to toggle_option to specify how to "toggle" */
  41 #define OPT_NO_TOGGLE   0
  42 #define OPT_TOGGLE      1
  43 #define OPT_UNSET       2
  44 #define OPT_SET         3
  45 #define OPT_NO_PROMPT   0100
  46
  47 /* Error code from findopt_name */
  48 #define OPT_AMBIG       1
  49
  50 struct optname
  51 {
  52         char *oname;            /* Long (GNU-style) option name */
  53         struct optname *onext;  /* List of synonymous option names */
  54 };
  55
  56 #define OPTNAME_MAX     32      /* Max length of long option name */
  57
  58 struct loption
  59 {
  60         char oletter;           /* The controlling letter (a-z) */
  61         struct optname *onames; /* Long (GNU-style) option name */
  62         int otype;              /* Type of the option */
  63         int odefault;           /* Default value */
  64         int *ovar;              /* Pointer to the associated variable */
  65         void (*ofunc)           /* Pointer to special handling function */
  66             __P((int, char *));
  67         char *odesc[3];         /* Description of each value */
  68 };
  69