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/* $OpenBSD: options.h,v 1.6 2001/01/29 01:58:31 niklas Exp $ */
/*-
* Copyright (c) 1991, 1993, 1994
* The Regents of the University of California. All rights reserved.
* Copyright (c) 1991, 1993, 1994, 1995, 1996
* Keith Bostic. All rights reserved.
*
* See the LICENSE file for redistribution information.
*
* @(#)options.h 10.19 (Berkeley) 10/10/96
*/
/*
* Edit option information. Historically, if you set a boolean or numeric
* edit option value to its "default" value, it didn't show up in the :set
* display, i.e. it wasn't considered "changed". String edit options would
* show up as changed, regardless. We maintain a parallel set of values
* which are the default values and never consider an edit option changed
* if it was reset to the default value.
*
* Macros to retrieve boolean, integral and string option values, and to
* set, clear and test boolean option values. Some options (secure, lines,
* columns, terminal type) are global in scope, and are therefore stored
* in the global area. The offset in the global options array is stored
* in the screen's value field. This is set up when the options are first
* initialized.
*/
#define O_V(sp, o, fld) \
(F_ISSET(&(sp)->opts[(o)], OPT_GLOBAL) ? \
(sp)->gp->opts[(sp)->opts[(o)].o_cur.val].fld : \
(sp)->opts[(o)].fld)
/* Global option macros. */
#define OG_CLR(gp, o) ((gp)->opts[(o)].o_cur.val) = 0
#define OG_SET(gp, o) ((gp)->opts[(o)].o_cur.val) = 1
#define OG_STR(gp, o) ((gp)->opts[(o)].o_cur.str)
#define OG_VAL(gp, o) ((gp)->opts[(o)].o_cur.val)
#define OG_ISSET(gp, o) OG_VAL(gp, o)
#define OG_D_STR(gp, o) ((gp)->opts[(o)].o_def.str)
#define OG_D_VAL(gp, o) ((gp)->opts[(o)].o_def.val)
/*
* Flags to o_set(); need explicit OS_STR as can be setting the value to
* NULL.
*/
#define OS_DEF 0x01 /* Set the default value. */
#define OS_NOFREE 0x02 /* Don't free the old string. */
#define OS_STR 0x04 /* Set to string argument. */
#define OS_STRDUP 0x08 /* Copy then set to string argument. */
struct _option {
union {
u_long val; /* Value or boolean. */
char *str; /* String. */
} o_cur;
#define O_CLR(sp, o) o_set(sp, o, 0, NULL, 0)
#define O_SET(sp, o) o_set(sp, o, 0, NULL, 1)
#define O_STR(sp, o) O_V(sp, o, o_cur.str)
#define O_VAL(sp, o) O_V(sp, o, o_cur.val)
#define O_ISSET(sp, o) O_VAL(sp, o)
union {
u_long val; /* Value or boolean. */
char *str; /* String. */
} o_def;
#define O_D_CLR(sp, o) o_set(sp, o, OS_DEF, NULL, 0)
#define O_D_SET(sp, o) o_set(sp, o, OS_DEF, NULL, 1)
#define O_D_STR(sp, o) O_V(sp, o, o_def.str)
#define O_D_VAL(sp, o) O_V(sp, o, o_def.val)
#define O_D_ISSET(sp, o) O_D_VAL(sp, o)
#define OPT_GLOBAL 0x01 /* Option is global. */
#define OPT_SELECTED 0x02 /* Selected for display. */
u_int8_t flags;
};
/* List of option names, associated update functions and information. */
struct _optlist {
char *name; /* Name. */
/* Change function. */
int (*func) __P((SCR *, OPTION *, char *, u_long *));
/* Type of object. */
enum { OPT_0BOOL, OPT_1BOOL, OPT_NUM, OPT_STR } type;
#define OPT_ADISP 0x001 /* Always display the option. */
#define OPT_ALWAYS 0x002 /* Always call the support function. */
#define OPT_NDISP 0x004 /* Never display the option. */
#define OPT_NOSAVE 0x008 /* Mkexrc command doesn't save. */
#define OPT_NOSET 0x010 /* Option may not be set. */
#define OPT_NOUNSET 0x020 /* Option may not be unset. */
#define OPT_NOZERO 0x040 /* Option may not be set to 0. */
#define OPT_EARLYSET 0x080 /* Func called after value is set */
u_int8_t flags;
};
/* Option argument to opts_dump(). */
enum optdisp { NO_DISPLAY, ALL_DISPLAY, CHANGED_DISPLAY, SELECT_DISPLAY };
/* Options array. */
extern OPTLIST const optlist[];
#include "options_def.h"
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