Annotation of src/usr.bin/less/option.h, Revision 1.3
1.1 etheisen 1: /*
1.3 ! millert 2: * Copyright (C) 1984-2002 Mark Nudelman
1.1 etheisen 3: *
1.3 ! millert 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.
1.1 etheisen 6: *
1.3 ! millert 7: * For more information about less, or for information on how to
! 8: * contact the author, see the README file.
1.1 etheisen 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 */
1.3 ! millert 26: #define INIT_HANDLER 01000 /* Call option handler function at startup */
1.1 etheisen 27:
28: #define OTYPE (BOOL|TRIPLE|NUMBER|STRING|NOVAR)
29:
30: /*
31: * Argument to a handling function tells what type of activity:
32: */
33: #define INIT 0 /* Initialization (from command line) */
34: #define QUERY 1 /* Query (from _ or - command) */
35: #define TOGGLE 2 /* Change value (from - command) */
36:
37: /* Flag to toggle_option to specify how to "toggle" */
38: #define OPT_NO_TOGGLE 0
39: #define OPT_TOGGLE 1
40: #define OPT_UNSET 2
41: #define OPT_SET 3
1.3 ! millert 42: #define OPT_NO_PROMPT 0100
! 43:
! 44: /* Error code from findopt_name */
! 45: #define OPT_AMBIG 1
! 46:
! 47: struct optname
! 48: {
! 49: char *oname; /* Long (GNU-style) option name */
! 50: struct optname *onext; /* List of synonymous option names */
! 51: };
1.1 etheisen 52:
1.3 ! millert 53: struct loption
1.1 etheisen 54: {
55: char oletter; /* The controlling letter (a-z) */
1.3 ! millert 56: struct optname *onames; /* Long (GNU-style) option name */
1.1 etheisen 57: int otype; /* Type of the option */
58: int odefault; /* Default value */
59: int *ovar; /* Pointer to the associated variable */
60: void (*ofunc)(); /* Pointer to special handling function */
61: char *odesc[3]; /* Description of each value */
62: };
63: