option.h revision 221715
160786Sps/* 2221715Sdelphij * Copyright (C) 1984-2011 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 */ 26128345Stjr#define INIT_HANDLER 01000 /* Call option handler function at startup */ 2760786Sps 2860786Sps#define OTYPE (BOOL|TRIPLE|NUMBER|STRING|NOVAR) 2960786Sps 30221715Sdelphij#define OLETTER_NONE '\1' /* Invalid option letter */ 31221715Sdelphij 3260786Sps/* 3360786Sps * Argument to a handling function tells what type of activity: 3460786Sps */ 3560786Sps#define INIT 0 /* Initialization (from command line) */ 3660786Sps#define QUERY 1 /* Query (from _ or - command) */ 3760786Sps#define TOGGLE 2 /* Change value (from - command) */ 3860786Sps 3960786Sps/* Flag to toggle_option to specify how to "toggle" */ 4060786Sps#define OPT_NO_TOGGLE 0 4160786Sps#define OPT_TOGGLE 1 4260786Sps#define OPT_UNSET 2 4360786Sps#define OPT_SET 3 4460786Sps#define OPT_NO_PROMPT 0100 4560786Sps 4660786Sps/* Error code from findopt_name */ 4760786Sps#define OPT_AMBIG 1 4860786Sps 4960786Spsstruct optname 5060786Sps{ 5160786Sps char *oname; /* Long (GNU-style) option name */ 5260786Sps struct optname *onext; /* List of synonymous option names */ 5360786Sps}; 5460786Sps 55221715Sdelphij#define OPTNAME_MAX 32 /* Max length of long option name */ 56221715Sdelphij 57128345Stjrstruct loption 5860786Sps{ 5960786Sps char oletter; /* The controlling letter (a-z) */ 6060786Sps struct optname *onames; /* Long (GNU-style) option name */ 6160786Sps int otype; /* Type of the option */ 6260786Sps int odefault; /* Default value */ 6360786Sps int *ovar; /* Pointer to the associated variable */ 6460786Sps void (*ofunc)(); /* Pointer to special handling function */ 6560786Sps char *odesc[3]; /* Description of each value */ 6660786Sps}; 6760786Sps 68