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/*
* Copyright (C) 1984-2024 Mark Nudelman
*
* You may distribute under the terms of either the GNU General Public
* License or the Less License, as specified in the README file.
*
* For more information, see the README file.
*/
#define END_OPTION_STRING ('$')
/*
* Types of options.
*/
#define BOOL 01 /* Boolean option: 0 or 1 */
#define TRIPLE 02 /* Triple-valued option: 0, 1 or 2 */
#define NUMBER 04 /* Numeric option */
#define STRING 010 /* String-valued option */
#define NOVAR 020 /* No associated variable */
#define REPAINT 040 /* Repaint screen after toggling option */
#define NO_TOGGLE 0100 /* Option cannot be toggled with "-" cmd */
#define HL_REPAINT 0200 /* Repaint hilites after toggling option */
#define NO_QUERY 0400 /* Option cannot be queried with "_" cmd */
#define INIT_HANDLER 01000 /* Call option handler function at startup */
#define UNSUPPORTED 02000 /* Option is unsupported via LESS_UNSUPPORT */
#define OTYPE (BOOL|TRIPLE|NUMBER|STRING|NOVAR)
#define OLETTER_NONE '\1' /* Invalid option letter */
/*
* Argument to a handling function tells what type of activity:
*/
#define INIT 0 /* Initialization (from command line) */
#define QUERY 1 /* Query (from _ or - command) */
#define TOGGLE 2 /* Change value (from - command) */
/* Flag to toggle_option to specify how to "toggle" */
#define OPT_NO_TOGGLE 0
#define OPT_TOGGLE 1
#define OPT_UNSET 2
#define OPT_SET 3
#define OPT_NO_PROMPT 0100
/* Error code from findopt_name */
#define OPT_AMBIG 1
struct optname
{
constant char *oname; /* Long (GNU-style) option name */
struct optname *onext; /* List of synonymous option names */
};
#define OPTNAME_MAX 32 /* Max length of long option name */
struct loption
{
char oletter; /* The controlling letter (a-z) */
struct optname *onames; /* Long (GNU-style) option name */
int otype; /* Type of the option */
int odefault; /* Default value */
int *ovar; /* Pointer to the associated variable */
void (*ofunc)(int, constant char*); /* Pointer to special handling function */
constant char *odesc[3]; /* Description of each value */
};
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