1/*
2 * Copyright (C) 1984-2023  Mark Nudelman
3 *
4 * You may distribute under the terms of either the GNU General Public
5 * License or the Less License, as specified in the README file.
6 *
7 * For more information, see the README file.
8 */
9
10
11#define END_OPTION_STRING       ('$')
12
13/*
14 * Types of options.
15 */
16#define BOOL            01      /* Boolean option: 0 or 1 */
17#define TRIPLE          02      /* Triple-valued option: 0, 1 or 2 */
18#define NUMBER          04      /* Numeric option */
19#define STRING          010     /* String-valued option */
20#define NOVAR           020     /* No associated variable */
21#define REPAINT         040     /* Repaint screen after toggling option */
22#define NO_TOGGLE       0100    /* Option cannot be toggled with "-" cmd */
23#define HL_REPAINT      0200    /* Repaint hilites after toggling option */
24#define NO_QUERY        0400    /* Option cannot be queried with "_" cmd */
25#define INIT_HANDLER    01000   /* Call option handler function at startup */
26
27#define OTYPE           (BOOL|TRIPLE|NUMBER|STRING|NOVAR)
28
29#define OLETTER_NONE    '\1'     /* Invalid option letter */
30
31/*
32 * Argument to a handling function tells what type of activity:
33 */
34#define INIT    0       /* Initialization (from command line) */
35#define QUERY   1       /* Query (from _ or - command) */
36#define TOGGLE  2       /* Change value (from - command) */
37
38/* Flag to toggle_option to specify how to "toggle" */
39#define OPT_NO_TOGGLE   0
40#define OPT_TOGGLE      1
41#define OPT_UNSET       2
42#define OPT_SET         3
43#define OPT_NO_PROMPT   0100
44
45/* Error code from findopt_name */
46#define OPT_AMBIG       1
47
48struct optname
49{
50        char *oname;            /* Long (GNU-style) option name */
51        struct optname *onext;  /* List of synonymous option names */
52};
53
54#define OPTNAME_MAX     32      /* Max length of long option name */
55
56struct loption
57{
58        char oletter;           /* The controlling letter (a-z) */
59        struct optname *onames; /* Long (GNU-style) option name */
60        int otype;              /* Type of the option */
61        int odefault;           /* Default value */
62        int *ovar;              /* Pointer to the associated variable */
63        void (*ofunc)(int, char*); /* Pointer to special handling function */
64        char *odesc[3];         /* Description of each value */
65};
66
67