1 /* 2 * Copyright (C) 1984-2000 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 about less, or for information on how to 8 * contact the author, see the README file. 9 */ 10 11 12 #define END_OPTION_STRING ('$') 13 14 /* 15 * Types of options. 16 */ 17 #define BOOL 01 /* Boolean option: 0 or 1 */ 18 #define TRIPLE 02 /* Triple-valued option: 0, 1 or 2 */ 19 #define NUMBER 04 /* Numeric option */ 20 #define STRING 010 /* String-valued option */ 21 #define NOVAR 020 /* No associated variable */ 22 #define REPAINT 040 /* Repaint screen after toggling option */ 23 #define NO_TOGGLE 0100 /* Option cannot be toggled with "-" cmd */ 24 #define HL_REPAINT 0200 /* Repaint hilites after toggling option */ 25 #define NO_QUERY 0400 /* Option cannot be queried with "_" cmd */ 26 27 #define OTYPE (BOOL|TRIPLE|NUMBER|STRING|NOVAR) 28 29 /* 30 * Argument to a handling function tells what type of activity: 31 */ 32 #define INIT 0 /* Initialization (from command line) */ 33 #define QUERY 1 /* Query (from _ or - command) */ 34 #define TOGGLE 2 /* Change value (from - command) */ 35 36 /* Flag to toggle_option to specify how to "toggle" */ 37 #define OPT_NO_TOGGLE 0 38 #define OPT_TOGGLE 1 39 #define OPT_UNSET 2 40 #define OPT_SET 3 41 #define OPT_NO_PROMPT 0100 42 43 /* Error code from findopt_name */ 44 #define OPT_AMBIG 1 45 46 struct optname 47 { 48 char *oname; /* Long (GNU-style) option name */ 49 struct optname *onext; /* List of synonymous option names */ 50 }; 51 52 struct option 53 { 54 char oletter; /* The controlling letter (a-z) */ 55 struct optname *onames; /* Long (GNU-style) option name */ 56 int otype; /* Type of the option */ 57 int odefault; /* Default value */ 58 int *ovar; /* Pointer to the associated variable */ 59 void (*ofunc)(); /* Pointer to special handling function */ 60 char *odesc[3]; /* Description of each value */ 61 }; 62 63