option.h revision 60786
160786Sps/* 260786Sps * Copyright (C) 1984-2000 Mark Nudelman 360786Sps * 460786Sps * You may distribute under the terms of either the GNU General Public 560786Sps * License or the Less License, as specified in the README file. 660786Sps * 760786Sps * For more information about less, or for information on how to 860786Sps * contact the author, see the README file. 960786Sps */ 1060786Sps 1160786Sps 1260786Sps#define END_OPTION_STRING ('$') 1360786Sps 1460786Sps/* 1560786Sps * Types of options. 1660786Sps */ 1760786Sps#define BOOL 01 /* Boolean option: 0 or 1 */ 1860786Sps#define TRIPLE 02 /* Triple-valued option: 0, 1 or 2 */ 1960786Sps#define NUMBER 04 /* Numeric option */ 2060786Sps#define STRING 010 /* String-valued option */ 2160786Sps#define NOVAR 020 /* No associated variable */ 2260786Sps#define REPAINT 040 /* Repaint screen after toggling option */ 2360786Sps#define NO_TOGGLE 0100 /* Option cannot be toggled with "-" cmd */ 2460786Sps#define HL_REPAINT 0200 /* Repaint hilites after toggling option */ 2560786Sps#define NO_QUERY 0400 /* Option cannot be queried with "_" cmd */ 2660786Sps 2760786Sps#define OTYPE (BOOL|TRIPLE|NUMBER|STRING|NOVAR) 2860786Sps 2960786Sps/* 3060786Sps * Argument to a handling function tells what type of activity: 3160786Sps */ 3260786Sps#define INIT 0 /* Initialization (from command line) */ 3360786Sps#define QUERY 1 /* Query (from _ or - command) */ 3460786Sps#define TOGGLE 2 /* Change value (from - command) */ 3560786Sps 3660786Sps/* Flag to toggle_option to specify how to "toggle" */ 3760786Sps#define OPT_NO_TOGGLE 0 3860786Sps#define OPT_TOGGLE 1 3960786Sps#define OPT_UNSET 2 4060786Sps#define OPT_SET 3 4160786Sps#define OPT_NO_PROMPT 0100 4260786Sps 4360786Sps/* Error code from findopt_name */ 4460786Sps#define OPT_AMBIG 1 4560786Sps 4660786Spsstruct optname 4760786Sps{ 4860786Sps char *oname; /* Long (GNU-style) option name */ 4960786Sps struct optname *onext; /* List of synonymous option names */ 5060786Sps}; 5160786Sps 5260786Spsstruct option 5360786Sps{ 5460786Sps char oletter; /* The controlling letter (a-z) */ 5560786Sps struct optname *onames; /* Long (GNU-style) option name */ 5660786Sps int otype; /* Type of the option */ 5760786Sps int odefault; /* Default value */ 5860786Sps int *ovar; /* Pointer to the associated variable */ 5960786Sps void (*ofunc)(); /* Pointer to special handling function */ 6060786Sps char *odesc[3]; /* Description of each value */ 6160786Sps}; 6260786Sps 63