1 /* 2 * Copyright (C) 1984-2011 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 #define INIT_HANDLER 01000 /* Call option handler function at startup */ 27 28 #define OTYPE (BOOL|TRIPLE|NUMBER|STRING|NOVAR) 29 30 #define OLETTER_NONE '\1' /* Invalid option letter */ 31 32 /* 33 * Argument to a handling function tells what type of activity: 34 */ 35 #define INIT 0 /* Initialization (from command line) */ 36 #define QUERY 1 /* Query (from _ or - command) */ 37 #define TOGGLE 2 /* Change value (from - command) */ 38 39 /* Flag to toggle_option to specify how to "toggle" */ 40 #define OPT_NO_TOGGLE 0 41 #define OPT_TOGGLE 1 42 #define OPT_UNSET 2 43 #define OPT_SET 3 44 #define OPT_NO_PROMPT 0100 45 46 /* Error code from findopt_name */ 47 #define OPT_AMBIG 1 48 49 struct optname 50 { 51 char *oname; /* Long (GNU-style) option name */ 52 struct optname *onext; /* List of synonymous option names */ 53 }; 54 55 #define OPTNAME_MAX 32 /* Max length of long option name */ 56 57 struct loption 58 { 59 char oletter; /* The controlling letter (a-z) */ 60 struct optname *onames; /* Long (GNU-style) option name */ 61 int otype; /* Type of the option */ 62 int odefault; /* Default value */ 63 int *ovar; /* Pointer to the associated variable */ 64 void (*ofunc)(); /* Pointer to special handling function */ 65 char *odesc[3]; /* Description of each value */ 66 }; 67 68