103 lines
3.6 KiB
C
103 lines
3.6 KiB
C
/*-
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* Copyright (c) 1991, 1993, 1994
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* The Regents of the University of California. All rights reserved.
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* Copyright (c) 1991, 1993, 1994, 1995, 1996
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* Keith Bostic. All rights reserved.
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*
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* See the LICENSE file for redistribution information.
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*
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* $Id: options.h,v 10.21 2012/02/10 20:24:58 zy Exp $
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*/
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/*
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* Edit option information. Historically, if you set a boolean or numeric
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* edit option value to its "default" value, it didn't show up in the :set
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* display, i.e. it wasn't considered "changed". String edit options would
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* show up as changed, regardless. We maintain a parallel set of values
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* which are the default values and never consider an edit option changed
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* if it was reset to the default value.
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*
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* Macros to retrieve boolean, integral and string option values, and to
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* set, clear and test boolean option values. Some options (secure, lines,
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* columns, terminal type) are global in scope, and are therefore stored
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* in the global area. The offset in the global options array is stored
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* in the screen's value field. This is set up when the options are first
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* initialized.
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*/
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#define O_V(sp, o, fld) \
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(F_ISSET(&(sp)->opts[(o)], OPT_GLOBAL) ? \
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(sp)->gp->opts[(sp)->opts[(o)].o_cur.val].fld : \
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(sp)->opts[(o)].fld)
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/* Global option macros. */
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#define OG_CLR(gp, o) ((gp)->opts[(o)].o_cur.val) = 0
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#define OG_SET(gp, o) ((gp)->opts[(o)].o_cur.val) = 1
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#define OG_STR(gp, o) ((gp)->opts[(o)].o_cur.str)
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#define OG_VAL(gp, o) ((gp)->opts[(o)].o_cur.val)
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#define OG_ISSET(gp, o) OG_VAL(gp, o)
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#define OG_D_STR(gp, o) ((gp)->opts[(o)].o_def.str)
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#define OG_D_VAL(gp, o) ((gp)->opts[(o)].o_def.val)
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/*
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* Flags to o_set(); need explicit OS_STR as can be setting the value to
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* NULL.
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*/
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#define OS_DEF 0x01 /* Set the default value. */
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#define OS_NOFREE 0x02 /* Don't free the old string. */
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#define OS_STR 0x04 /* Set to string argument. */
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#define OS_STRDUP 0x08 /* Copy then set to string argument. */
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struct _option {
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union {
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u_long val; /* Value or boolean. */
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char *str; /* String. */
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} o_cur;
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#define O_CLR(sp, o) o_set(sp, o, 0, NULL, 0)
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#define O_SET(sp, o) o_set(sp, o, 0, NULL, 1)
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#define O_STR(sp, o) O_V(sp, o, o_cur.str)
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#define O_VAL(sp, o) O_V(sp, o, o_cur.val)
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#define O_ISSET(sp, o) O_VAL(sp, o)
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union {
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u_long val; /* Value or boolean. */
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char *str; /* String. */
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} o_def;
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#define O_D_CLR(sp, o) o_set(sp, o, OS_DEF, NULL, 0)
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#define O_D_SET(sp, o) o_set(sp, o, OS_DEF, NULL, 1)
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#define O_D_STR(sp, o) O_V(sp, o, o_def.str)
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#define O_D_VAL(sp, o) O_V(sp, o, o_def.val)
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#define O_D_ISSET(sp, o) O_D_VAL(sp, o)
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#define OPT_GLOBAL 0x01 /* Option is global. */
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#define OPT_SELECTED 0x02 /* Selected for display. */
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u_int8_t flags;
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};
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/* List of option names, associated update functions and information. */
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struct _optlist {
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CHAR_T *name; /* Name. */
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/* Change function. */
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int (*func)(SCR *, OPTION *, char *, u_long *);
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/* Type of object. */
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enum { OPT_0BOOL, OPT_1BOOL, OPT_NUM, OPT_STR } type;
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#define OPT_ADISP 0x001 /* Always display the option. */
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#define OPT_ALWAYS 0x002 /* Always call the support function. */
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#define OPT_NDISP 0x004 /* Never display the option. */
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#define OPT_NOSAVE 0x008 /* Mkexrc command doesn't save. */
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#define OPT_NOSET 0x010 /* Option may not be set. */
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#define OPT_NOUNSET 0x020 /* Option may not be unset. */
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#define OPT_NOZERO 0x040 /* Option may not be set to 0. */
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#define OPT_PAIRS 0x080 /* String with even length. */
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u_int8_t flags;
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};
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/* Option argument to opts_dump(). */
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enum optdisp { NO_DISPLAY, ALL_DISPLAY, CHANGED_DISPLAY, SELECT_DISPLAY };
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/* Options array. */
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extern OPTLIST const optlist[];
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#include "options_def.h"
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