Annotation of src/usr.bin/less/option.h, Revision 1.5
1.1 etheisen 1: /*
1.5 ! shadchin 2: * Copyright (C) 1984-2012 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: *
1.5 ! shadchin 7: * For more information, see the README file.
1.1 etheisen 8: */
9:
10:
11: #define END_OPTION_STRING ('$')
12:
13: /*
14: * Types of options.
15: */
16: #define BOOL 01 /* Boolean option: 0 or 1 */
17: #define TRIPLE 02 /* Triple-valued option: 0, 1 or 2 */
18: #define NUMBER 04 /* Numeric option */
19: #define STRING 010 /* String-valued option */
20: #define NOVAR 020 /* No associated variable */
21: #define REPAINT 040 /* Repaint screen after toggling option */
22: #define NO_TOGGLE 0100 /* Option cannot be toggled with "-" cmd */
23: #define HL_REPAINT 0200 /* Repaint hilites after toggling option */
24: #define NO_QUERY 0400 /* Option cannot be queried with "_" cmd */
1.3 millert 25: #define INIT_HANDLER 01000 /* Call option handler function at startup */
1.1 etheisen 26:
27: #define OTYPE (BOOL|TRIPLE|NUMBER|STRING|NOVAR)
28:
1.4 shadchin 29: #define OLETTER_NONE '\1' /* Invalid option letter */
30:
1.1 etheisen 31: /*
32: * Argument to a handling function tells what type of activity:
33: */
34: #define INIT 0 /* Initialization (from command line) */
35: #define QUERY 1 /* Query (from _ or - command) */
36: #define TOGGLE 2 /* Change value (from - command) */
37:
38: /* Flag to toggle_option to specify how to "toggle" */
39: #define OPT_NO_TOGGLE 0
40: #define OPT_TOGGLE 1
41: #define OPT_UNSET 2
42: #define OPT_SET 3
1.3 millert 43: #define OPT_NO_PROMPT 0100
44:
45: /* Error code from findopt_name */
46: #define OPT_AMBIG 1
47:
48: struct optname
49: {
50: char *oname; /* Long (GNU-style) option name */
51: struct optname *onext; /* List of synonymous option names */
52: };
1.4 shadchin 53:
54: #define OPTNAME_MAX 32 /* Max length of long option name */
1.1 etheisen 55:
1.3 millert 56: struct loption
1.1 etheisen 57: {
58: char oletter; /* The controlling letter (a-z) */
1.3 millert 59: struct optname *onames; /* Long (GNU-style) option name */
1.1 etheisen 60: int otype; /* Type of the option */
61: int odefault; /* Default value */
62: int *ovar; /* Pointer to the associated variable */
63: void (*ofunc)(); /* Pointer to special handling function */
64: char *odesc[3]; /* Description of each value */
65: };
66: