Post-cvs2svn flatten pass.

1 files changed, 0 insertions, 1141 deletions

diff --git a/contrib/nvi/common/options.c b/contrib/nvi/common/options.c
deleted file mode 100644
index 973778c..0000000
--- a/contrib/nvi/common/options.c
+++ /dev/null
@@ -1,1141 +0,0 @@
-/*-
- * 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.
- */
-
-#include "config.h"
-
-#ifndef lint
-static const char sccsid[] = "@(#)options.c	10.51 (Berkeley) 10/14/96";
-#endif /* not lint */
-
-#include <sys/types.h>
-#include <sys/queue.h>
-#include <sys/stat.h>
-#include <sys/time.h>
-
-#include <bitstring.h>
-#include <ctype.h>
-#include <errno.h>
-#include <limits.h>
-#include <stdio.h>
-#include <stdlib.h>
-#include <string.h>
-#include <unistd.h>
-
-#include "common.h"
-#include "../vi/vi.h"
-#include "pathnames.h"
-
-static int	 	 opts_abbcmp __P((const void *, const void *));
-static int	 	 opts_cmp __P((const void *, const void *));
-static int	 	 opts_print __P((SCR *, OPTLIST const *));
-
-/*
- * O'Reilly noted options and abbreviations are from "Learning the VI Editor",
- * Fifth Edition, May 1992.  There's no way of knowing what systems they are
- * actually from.
- *
- * HPUX noted options and abbreviations are from "The Ultimate Guide to the
- * VI and EX Text Editors", 1990.
- */
-OPTLIST const optlist[] = {
-/* O_ALTWERASE	  4.4BSD */
-	{"altwerase",	f_altwerase,	OPT_0BOOL,	0},
-/* O_AUTOINDENT	    4BSD */
-	{"autoindent",	NULL,		OPT_0BOOL,	0},
-/* O_AUTOPRINT	    4BSD */
-	{"autoprint",	NULL,		OPT_1BOOL,	0},
-/* O_AUTOWRITE	    4BSD */
-	{"autowrite",	NULL,		OPT_0BOOL,	0},
-/* O_BACKUP	  4.4BSD */
-	{"backup",	NULL,		OPT_STR,	0},
-/* O_BEAUTIFY	    4BSD */
-	{"beautify",	NULL,		OPT_0BOOL,	0},
-/* O_CDPATH	  4.4BSD */
-	{"cdpath",	NULL,		OPT_STR,	0},
-/* O_CEDIT	  4.4BSD */
-	{"cedit",	NULL,		OPT_STR,	0},
-/* O_COLUMNS	  4.4BSD */
-	{"columns",	f_columns,	OPT_NUM,	OPT_NOSAVE},
-/* O_COMMENT	  4.4BSD */
-	{"comment",	NULL,		OPT_0BOOL,	0},
-/* O_DIRECTORY	    4BSD */
-	{"directory",	NULL,		OPT_STR,	0},
-/* O_EDCOMPATIBLE   4BSD */
-	{"edcompatible",NULL,		OPT_0BOOL,	0},
-/* O_ESCAPETIME	  4.4BSD */
-	{"escapetime",	NULL,		OPT_NUM,	0},
-/* O_ERRORBELLS	    4BSD */
-	{"errorbells",	NULL,		OPT_0BOOL,	0},
-/* O_EXRC	System V (undocumented) */
-	{"exrc",	NULL,		OPT_0BOOL,	0},
-/* O_EXTENDED	  4.4BSD */
-	{"extended",	f_recompile,	OPT_0BOOL,	0},
-/* O_FILEC	  4.4BSD */
-	{"filec",	NULL,		OPT_STR,	0},
-/* O_FLASH	    HPUX */
-	{"flash",	NULL,		OPT_1BOOL,	0},
-/* O_HARDTABS	    4BSD */
-	{"hardtabs",	NULL,		OPT_NUM,	0},
-/* O_ICLOWER	  4.4BSD */
-	{"iclower",	f_recompile,	OPT_0BOOL,	0},
-/* O_IGNORECASE	    4BSD */
-	{"ignorecase",	f_recompile,	OPT_0BOOL,	0},
-/* O_KEYTIME	  4.4BSD */
-	{"keytime",	NULL,		OPT_NUM,	0},
-/* O_LEFTRIGHT	  4.4BSD */
-	{"leftright",	f_reformat,	OPT_0BOOL,	0},
-/* O_LINES	  4.4BSD */
-	{"lines",	f_lines,	OPT_NUM,	OPT_NOSAVE},
-/* O_LISP	    4BSD
- *	XXX
- *	When the lisp option is implemented, delete the OPT_NOSAVE flag,
- *	so that :mkexrc dumps it.
- */
-	{"lisp",	f_lisp,		OPT_0BOOL,	OPT_NOSAVE},
-/* O_LIST	    4BSD */
-	{"list",	f_reformat,	OPT_0BOOL,	0},
-/* O_LOCKFILES	  4.4BSD
- *	XXX
- *	Locking isn't reliable enough over NFS to require it, in addition,
- *	it's a serious startup performance problem over some remote links.
- */
-	{"lock",	NULL,		OPT_1BOOL,	0},
-/* O_MAGIC	    4BSD */
-	{"magic",	NULL,		OPT_1BOOL,	0},
-/* O_MATCHTIME	  4.4BSD */
-	{"matchtime",	NULL,		OPT_NUM,	0},
-/* O_MESG	    4BSD */
-	{"mesg",	NULL,		OPT_1BOOL,	0},
-/* O_MODELINE	    4BSD
- *	!!!
- *	This has been documented in historical systems as both "modeline"
- *	and as "modelines".  Regardless of the name, this option represents
- *	a security problem of mammoth proportions, not to mention a stunning
- *	example of what your intro CS professor referred to as the perils of
- *	mixing code and data.  Don't add it, or I will kill you.
- */
-	{"modeline",	NULL,		OPT_0BOOL,	OPT_NOSET},
-/* O_MSGCAT	  4.4BSD */
-	{"msgcat",	f_msgcat,	OPT_STR,	0},
-/* O_NOPRINT	  4.4BSD */
-	{"noprint",	f_print,	OPT_STR,	0},
-/* O_NUMBER	    4BSD */
-	{"number",	f_reformat,	OPT_0BOOL,	0},
-/* O_OCTAL	  4.4BSD */
-	{"octal",	f_print,	OPT_0BOOL,	0},
-/* O_OPEN	    4BSD */
-	{"open",	NULL,		OPT_1BOOL,	0},
-/* O_OPTIMIZE	    4BSD */
-	{"optimize",	NULL,		OPT_1BOOL,	0},
-/* O_PARAGRAPHS	    4BSD */
-	{"paragraphs",	f_paragraph,	OPT_STR,	0},
-/* O_PATH	  4.4BSD */
-	{"path",	NULL,		OPT_STR,	0},
-/* O_PRINT	  4.4BSD */
-	{"print",	f_print,	OPT_STR,	0},
-/* O_PROMPT	    4BSD */
-	{"prompt",	NULL,		OPT_1BOOL,	0},
-/* O_READONLY	    4BSD (undocumented) */
-	{"readonly",	f_readonly,	OPT_0BOOL,	OPT_ALWAYS},
-/* O_RECDIR	  4.4BSD */
-	{"recdir",	NULL,		OPT_STR,	0},
-/* O_REDRAW	    4BSD */
-	{"redraw",	NULL,		OPT_0BOOL,	0},
-/* O_REMAP	    4BSD */
-	{"remap",	NULL,		OPT_1BOOL,	0},
-/* O_REPORT	    4BSD */
-	{"report",	NULL,		OPT_NUM,	0},
-/* O_RULER	  4.4BSD */
-	{"ruler",	NULL,		OPT_0BOOL,	0},
-/* O_SCROLL	    4BSD */
-	{"scroll",	NULL,		OPT_NUM,	0},
-/* O_SEARCHINCR	  4.4BSD */
-	{"searchincr",	NULL,		OPT_0BOOL,	0},
-/* O_SECTIONS	    4BSD */
-	{"sections",	f_section,	OPT_STR,	0},
-/* O_SECURE	  4.4BSD */
-	{"secure",	NULL,		OPT_0BOOL,	OPT_NOUNSET},
-/* O_SHELL	    4BSD */
-	{"shell",	NULL,		OPT_STR,	0},
-/* O_SHELLMETA	  4.4BSD */
-	{"shellmeta",	NULL,		OPT_STR,	0},
-/* O_SHIFTWIDTH	    4BSD */
-	{"shiftwidth",	NULL,		OPT_NUM,	OPT_NOZERO},
-/* O_SHOWMATCH	    4BSD */
-	{"showmatch",	NULL,		OPT_0BOOL,	0},
-/* O_SHOWMODE	  4.4BSD */
-	{"showmode",	NULL,		OPT_0BOOL,	0},
-/* O_SIDESCROLL	  4.4BSD */
-	{"sidescroll",	NULL,		OPT_NUM,	OPT_NOZERO},
-/* O_SLOWOPEN	    4BSD  */
-	{"slowopen",	NULL,		OPT_0BOOL,	0},
-/* O_SOURCEANY	    4BSD (undocumented)
- *	!!!
- *	Historic vi, on startup, source'd $HOME/.exrc and ./.exrc, if they
- *	were owned by the user.  The sourceany option was an undocumented
- *	feature of historic vi which permitted the startup source'ing of
- *	.exrc files the user didn't own.  This is an obvious security problem,
- *	and we ignore the option.
- */
-	{"sourceany",	NULL,		OPT_0BOOL,	OPT_NOSET},
-/* O_TABSTOP	    4BSD */
-	{"tabstop",	f_reformat,	OPT_NUM,	OPT_NOZERO},
-/* O_TAGLENGTH	    4BSD */
-	{"taglength",	NULL,		OPT_NUM,	0},
-/* O_TAGS	    4BSD */
-	{"tags",	NULL,		OPT_STR,	0},
-/* O_TERM	    4BSD
- *	!!!
- *	By default, the historic vi always displayed information about two
- *	options, redraw and term.  Term seems sufficient.
- */
-	{"term",	NULL,		OPT_STR,	OPT_ADISP|OPT_NOSAVE},
-/* O_TERSE	    4BSD */
-	{"terse",	NULL,		OPT_0BOOL,	0},
-/* O_TILDEOP      4.4BSD */
-	{"tildeop",	NULL,		OPT_0BOOL,	0},
-/* O_TIMEOUT	    4BSD (undocumented) */
-	{"timeout",	NULL,		OPT_1BOOL,	0},
-/* O_TTYWERASE	  4.4BSD */
-	{"ttywerase",	f_ttywerase,	OPT_0BOOL,	0},
-/* O_VERBOSE	  4.4BSD */
-	{"verbose",	NULL,		OPT_0BOOL,	0},
-/* O_W1200	    4BSD */
-	{"w1200",	f_w1200,	OPT_NUM,	OPT_NDISP|OPT_NOSAVE},
-/* O_W300	    4BSD */
-	{"w300",	f_w300,		OPT_NUM,	OPT_NDISP|OPT_NOSAVE},
-/* O_W9600	    4BSD */
-	{"w9600",	f_w9600,	OPT_NUM,	OPT_NDISP|OPT_NOSAVE},
-/* O_WARN	    4BSD */
-	{"warn",	NULL,		OPT_1BOOL,	0},
-/* O_WINDOW	    4BSD */
-	{"window",	f_window,	OPT_NUM,	0},
-/* O_WINDOWNAME	    4BSD */
-	{"windowname",	NULL,		OPT_0BOOL,	0},
-/* O_WRAPLEN	  4.4BSD */
-	{"wraplen",	NULL,		OPT_NUM,	0},
-/* O_WRAPMARGIN	    4BSD */
-	{"wrapmargin",	NULL,		OPT_NUM,	0},
-/* O_WRAPSCAN	    4BSD */
-	{"wrapscan",	NULL,		OPT_1BOOL,	0},
-/* O_WRITEANY	    4BSD */
-	{"writeany",	NULL,		OPT_0BOOL,	0},
-	{NULL},
-};
-
-typedef struct abbrev {
-        char *name;
-        int offset;
-} OABBREV;
-
-static OABBREV const abbrev[] = {
-	{"ai",		O_AUTOINDENT},		/*     4BSD */
-	{"ap",		O_AUTOPRINT},		/*     4BSD */
-	{"aw",		O_AUTOWRITE},		/*     4BSD */
-	{"bf",		O_BEAUTIFY},		/*     4BSD */
-	{"co",		O_COLUMNS},		/*   4.4BSD */
-	{"dir",		O_DIRECTORY},		/*     4BSD */
-	{"eb",		O_ERRORBELLS},		/*     4BSD */
-	{"ed",		O_EDCOMPATIBLE},	/*     4BSD */
-	{"ex",		O_EXRC},		/* System V (undocumented) */
-	{"ht",		O_HARDTABS},		/*     4BSD */
-	{"ic",		O_IGNORECASE},		/*     4BSD */
-	{"li",		O_LINES},		/*   4.4BSD */
-	{"modelines",	O_MODELINE},		/*     HPUX */
-	{"nu",		O_NUMBER},		/*     4BSD */
-	{"opt",		O_OPTIMIZE},		/*     4BSD */
-	{"para",	O_PARAGRAPHS},		/*     4BSD */
-	{"re",		O_REDRAW},		/* O'Reilly */
-	{"ro",		O_READONLY},		/*     4BSD (undocumented) */
-	{"scr",		O_SCROLL},		/*     4BSD (undocumented) */
-	{"sect",	O_SECTIONS},		/* O'Reilly */
-	{"sh",		O_SHELL},		/*     4BSD */
-	{"slow",	O_SLOWOPEN},		/*     4BSD */
-	{"sm",		O_SHOWMATCH},		/*     4BSD */
-	{"smd",		O_SHOWMODE},		/*     4BSD */
-	{"sw",		O_SHIFTWIDTH},		/*     4BSD */
-	{"tag",		O_TAGS},		/*     4BSD (undocumented) */
-	{"tl",		O_TAGLENGTH},		/*     4BSD */
-	{"to",		O_TIMEOUT},		/*     4BSD (undocumented) */
-	{"ts",		O_TABSTOP},		/*     4BSD */
-	{"tty",		O_TERM},		/*     4BSD (undocumented) */
-	{"ttytype",	O_TERM},		/*     4BSD (undocumented) */
-	{"w",		O_WINDOW},		/* O'Reilly */
-	{"wa",		O_WRITEANY},		/*     4BSD */
-	{"wi",		O_WINDOW},		/*     4BSD (undocumented) */
-	{"wl",		O_WRAPLEN},		/*   4.4BSD */
-	{"wm",		O_WRAPMARGIN},		/*     4BSD */
-	{"ws",		O_WRAPSCAN},		/*     4BSD */
-	{NULL},
-};
-
-/*
- * opts_init --
- *	Initialize some of the options.
- *
- * PUBLIC: int opts_init __P((SCR *, int *));
- */
-int
-opts_init(sp, oargs)
-	SCR *sp;
-	int *oargs;
-{
-	ARGS *argv[2], a, b;
-	OPTLIST const *op;
-	u_long v;
-	int cnt, optindx;
-	char *s, b1[1024];
-
-	a.bp = b1;
-	b.bp = NULL;
-	a.len = b.len = 0;
-	argv[0] = &a;
-	argv[1] = &b;
-
-	/* Set numeric and string default values. */
-#define	OI(indx, str) {							\
-	if (str != b1)		/* GCC puts strings in text-space. */	\
-		(void)strcpy(b1, str);					\
-	a.len = strlen(b1);						\
-	if (opts_set(sp, argv, NULL)) {					\
-		 optindx = indx;					\
-		goto err;						\
-	}								\
-}
-	/*
-	 * Indirect global options to global space.  Specifically, set up
-	 * terminal, lines, columns first, they're used by other options.
-	 * Note, don't set the flags until we've set up the indirection.
-	 */
-	if (o_set(sp, O_TERM, 0, NULL, GO_TERM))
-		goto err;
-	F_SET(&sp->opts[O_TERM], OPT_GLOBAL);
-	if (o_set(sp, O_LINES, 0, NULL, GO_LINES))
-		goto err;
-	F_SET(&sp->opts[O_LINES], OPT_GLOBAL);
-	if (o_set(sp, O_COLUMNS, 0, NULL, GO_COLUMNS))
-		goto err;
-	F_SET(&sp->opts[O_COLUMNS], OPT_GLOBAL);
-	if (o_set(sp, O_SECURE, 0, NULL, GO_SECURE))
-		goto err;
-	F_SET(&sp->opts[O_SECURE], OPT_GLOBAL);
-
-	/* Initialize string values. */
-	(void)snprintf(b1, sizeof(b1),
-	    "cdpath=%s", (s = getenv("CDPATH")) == NULL ? ":" : s);
-	OI(O_CDPATH, b1);
-
-	/*
-	 * !!!
-	 * Vi historically stored temporary files in /var/tmp.  We store them
-	 * in /tmp by default, hoping it's a memory based file system.  There
-	 * are two ways to change this -- the user can set either the directory
-	 * option or the TMPDIR environmental variable.
-	 */
-	(void)snprintf(b1, sizeof(b1),
-	    "directory=%s", (s = getenv("TMPDIR")) == NULL ? _PATH_TMP : s);
-	OI(O_DIRECTORY, b1);
-	OI(O_ESCAPETIME, "escapetime=1");
-	OI(O_KEYTIME, "keytime=6");
-	OI(O_MATCHTIME, "matchtime=7");
-	(void)snprintf(b1, sizeof(b1), "msgcat=%s", _PATH_MSGCAT);
-	OI(O_MSGCAT, b1);
-	OI(O_REPORT, "report=5");
-	OI(O_PARAGRAPHS, "paragraphs=IPLPPPQPP LIpplpipbp");
-	(void)snprintf(b1, sizeof(b1), "path=%s", "");
-	OI(O_PATH, b1);
-	(void)snprintf(b1, sizeof(b1), "recdir=%s", _PATH_PRESERVE);
-	OI(O_RECDIR, b1);
-	OI(O_SECTIONS, "sections=NHSHH HUnhsh");
-	(void)snprintf(b1, sizeof(b1),
-	    "shell=%s", (s = getenv("SHELL")) == NULL ? _PATH_BSHELL : s);
-	OI(O_SHELL, b1);
-	OI(O_SHELLMETA, "shellmeta=~{[*?$`'\"\\");
-	OI(O_SHIFTWIDTH, "shiftwidth=8");
-	OI(O_SIDESCROLL, "sidescroll=16");
-	OI(O_TABSTOP, "tabstop=8");
-	(void)snprintf(b1, sizeof(b1), "tags=%s", _PATH_TAGS);
-	OI(O_TAGS, b1);
-
-	/*
-	 * XXX
-	 * Initialize O_SCROLL here, after term; initializing term should
-	 * have created a LINES/COLUMNS value.
-	 */
-	if ((v = (O_VAL(sp, O_LINES) - 1) / 2) == 0)
-		v = 1;
-	(void)snprintf(b1, sizeof(b1), "scroll=%ld", v);
-	OI(O_SCROLL, b1);
-
-	/*
-	 * The default window option values are:
-	 *		8 if baud rate <=  600
-	 *	       16 if baud rate <= 1200
-	 *	LINES - 1 if baud rate  > 1200
-	 *
-	 * Note, the windows option code will correct any too-large value
-	 * or when the O_LINES value is 1.
-	 */
-	if (sp->gp->scr_baud(sp, &v))
-		return (1);
-	if (v <= 600)
-		v = 8;
-	else if (v <= 1200)
-		v = 16;
-	else
-		v = O_VAL(sp, O_LINES) - 1;
-	(void)snprintf(b1, sizeof(b1), "window=%lu", v);
-	OI(O_WINDOW, b1);
-
-	/*
-	 * Set boolean default values, and copy all settings into the default
-	 * information.  OS_NOFREE is set, we're copying, not replacing.
-	 */
-	for (op = optlist, cnt = 0; op->name != NULL; ++op, ++cnt)
-		switch (op->type) {
-		case OPT_0BOOL:
-			break;
-		case OPT_1BOOL:
-			O_SET(sp, cnt);
-			O_D_SET(sp, cnt);
-			break;
-		case OPT_NUM:
-			o_set(sp, cnt, OS_DEF, NULL, O_VAL(sp, cnt));
-			break;
-		case OPT_STR:
-			if (O_STR(sp, cnt) != NULL && o_set(sp, cnt,
-			    OS_DEF | OS_NOFREE | OS_STRDUP, O_STR(sp, cnt), 0))
-				goto err;
-			break;
-		default:
-			abort();
-		}
-
-	/*
-	 * !!!
-	 * Some options can be initialized by the command name or the
-	 * command-line arguments.  They don't set the default values,
-	 * it's historic practice.
-	 */
-	for (; *oargs != -1; ++oargs)
-		OI(*oargs, optlist[*oargs].name);
-	return (0);
-#undef OI
-
-err:	msgq(sp, M_ERR,
-	    "031|Unable to set default %s option", optlist[optindx].name);
-	return (1);
-}
-
-/*
- * opts_set --
- *	Change the values of one or more options.
- *
- * PUBLIC: int opts_set __P((SCR *, ARGS *[], char *));
- */
-int
-opts_set(sp, argv, usage)
-	SCR *sp;
-	ARGS *argv[];
-	char *usage;
-{
-	enum optdisp disp;
-	enum nresult nret;
-	OPTLIST const *op;
-	OPTION *spo;
-	u_long value, turnoff;
-	int ch, equals, nf, nf2, offset, qmark, rval;
-	char *endp, *name, *p, *sep, *t;
-
-	disp = NO_DISPLAY;
-	for (rval = 0; argv[0]->len != 0; ++argv) {
-		/*
-		 * The historic vi dumped the options for each occurrence of
-		 * "all" in the set list.  Puhleeze.
-		 */
-		if (!strcmp(argv[0]->bp, "all")) {
-			disp = ALL_DISPLAY;
-			continue;
-		}
-
-		/* Find equals sign or question mark. */
-		for (sep = NULL, equals = qmark = 0,
-		    p = name = argv[0]->bp; (ch = *p) != '\0'; ++p)
-			if (ch == '=' || ch == '?') {
-				if (p == name) {
-					if (usage != NULL)
-						msgq(sp, M_ERR,
-						    "032|Usage: %s", usage);
-					return (1);
-				}
-				sep = p;
-				if (ch == '=')
-					equals = 1;
-				else
-					qmark = 1;
-				break;
-			}
-
-		turnoff = 0;
-		op = NULL;
-		if (sep != NULL)
-			*sep++ = '\0';
-
-		/* Search for the name, then name without any leading "no". */
-		if ((op = opts_search(name)) == NULL &&
-		    name[0] == 'n' && name[1] == 'o') {
-			turnoff = 1;
-			name += 2;
-			op = opts_search(name);
-		}
-		if (op == NULL) {
-			opts_nomatch(sp, name);
-			rval = 1;
-			continue;
-		}
-
-		/* Find current option values. */
-		offset = op - optlist;
-		spo = sp->opts + offset;
-
-		/*
-		 * !!!
-		 * Historically, the question mark could be a separate
-		 * argument.
-		 */
-		if (!equals && !qmark &&
-		    argv[1]->len == 1 && argv[1]->bp[0] == '?') {
-			++argv;
-			qmark = 1;
-		}
-
-		/* Set name, value. */
-		switch (op->type) {
-		case OPT_0BOOL:
-		case OPT_1BOOL:
-			/* Some options may not be reset. */
-			if (F_ISSET(op, OPT_NOUNSET) && turnoff) {
-				msgq_str(sp, M_ERR, name,
-			    "291|set: the %s option may not be turned off");
-				rval = 1;
-				break;
-			}
-
-			/* Some options may not be set. */
-			if (F_ISSET(op, OPT_NOSET) && !turnoff) {
-				msgq_str(sp, M_ERR, name,
-			    "313|set: the %s option may never be turned on");
-				rval = 1;
-				break;
-			}
-
-			if (equals) {
-				msgq_str(sp, M_ERR, name,
-			    "034|set: [no]%s option doesn't take a value");
-				rval = 1;
-				break;
-			}
-			if (qmark) {
-				if (!disp)
-					disp = SELECT_DISPLAY;
-				F_SET(spo, OPT_SELECTED);
-				break;
-			}
-
-			/*
-			 * Do nothing if the value is unchanged, the underlying
-			 * functions can be expensive.
-			 */
-			if (!F_ISSET(op, OPT_ALWAYS))
-				if (turnoff) {
-					if (!O_ISSET(sp, offset))
-						break;
-				} else {
-					if (O_ISSET(sp, offset))
-						break;
-				}
-
-			/* Report to subsystems. */
-			if (op->func != NULL &&
-			    op->func(sp, spo, NULL, &turnoff) ||
-			    ex_optchange(sp, offset, NULL, &turnoff) ||
-			    v_optchange(sp, offset, NULL, &turnoff) ||
-			    sp->gp->scr_optchange(sp, offset, NULL, &turnoff)) {
-				rval = 1;
-				break;
-			}
-
-			/* Set the value. */
-			if (turnoff)
-				O_CLR(sp, offset);
-			else
-				O_SET(sp, offset);
-			break;
-		case OPT_NUM:
-			if (turnoff) {
-				msgq_str(sp, M_ERR, name,
-				    "035|set: %s option isn't a boolean");
-				rval = 1;
-				break;
-			}
-			if (qmark || !equals) {
-				if (!disp)
-					disp = SELECT_DISPLAY;
-				F_SET(spo, OPT_SELECTED);
-				break;
-			}
-
-			if (!isdigit(sep[0]))
-				goto badnum;
-			if ((nret =
-			    nget_uslong(&value, sep, &endp, 10)) != NUM_OK) {
-				p = msg_print(sp, name, &nf);
-				t = msg_print(sp, sep, &nf2);
-				switch (nret) {
-				case NUM_ERR:
-					msgq(sp, M_SYSERR,
-					    "036|set: %s option: %s", p, t);
-					break;
-				case NUM_OVER:
-					msgq(sp, M_ERR,
-			    "037|set: %s option: %s: value overflow", p, t);
-					break;
-				case NUM_OK:
-				case NUM_UNDER:
-					abort();
-				}
-				if (nf)
-					FREE_SPACE(sp, p, 0);
-				if (nf2)
-					FREE_SPACE(sp, t, 0);
-				rval = 1;
-				break;
-			}
-			if (*endp && !isblank(*endp)) {
-badnum:				p = msg_print(sp, name, &nf);
-				t = msg_print(sp, sep, &nf2);
-				msgq(sp, M_ERR,
-		    "038|set: %s option: %s is an illegal number", p, t);
-				if (nf)
-					FREE_SPACE(sp, p, 0);
-				if (nf2)
-					FREE_SPACE(sp, t, 0);
-				rval = 1;
-				break;
-			}
-
-			/* Some options may never be set to zero. */
-			if (F_ISSET(op, OPT_NOZERO) && value == 0) {
-				msgq_str(sp, M_ERR, name,
-			    "314|set: the %s option may never be set to 0");
-				rval = 1;
-				break;
-			}
-
-			/*
-			 * Do nothing if the value is unchanged, the underlying
-			 * functions can be expensive.
-			 */
-			if (!F_ISSET(op, OPT_ALWAYS) &&
-			    O_VAL(sp, offset) == value)
-				break;
-
-			/* Report to subsystems. */
-			if (op->func != NULL &&
-			    op->func(sp, spo, sep, &value) ||
-			    ex_optchange(sp, offset, sep, &value) ||
-			    v_optchange(sp, offset, sep, &value) ||
-			    sp->gp->scr_optchange(sp, offset, sep, &value)) {
-				rval = 1;
-				break;
-			}
-
-			/* Set the value. */
-			if (o_set(sp, offset, 0, NULL, value))
-				rval = 1;
-			break;
-		case OPT_STR:
-			if (turnoff) {
-				msgq_str(sp, M_ERR, name,
-				    "039|set: %s option isn't a boolean");
-				rval = 1;
-				break;
-			}
-			if (qmark || !equals) {
-				if (!disp)
-					disp = SELECT_DISPLAY;
-				F_SET(spo, OPT_SELECTED);
-				break;
-			}
-
-			/*
-			 * Do nothing if the value is unchanged, the underlying
-			 * functions can be expensive.
-			 */
-			if (!F_ISSET(op, OPT_ALWAYS) &&
-			    O_STR(sp, offset) != NULL &&
-			    !strcmp(O_STR(sp, offset), sep))
-				break;
-
-			/* Report to subsystems. */
-			if (op->func != NULL &&
-			    op->func(sp, spo, sep, NULL) ||
-			    ex_optchange(sp, offset, sep, NULL) ||
-			    v_optchange(sp, offset, sep, NULL) ||
-			    sp->gp->scr_optchange(sp, offset, sep, NULL)) {
-				rval = 1;
-				break;
-			}
-
-			/* Set the value. */
-			if (o_set(sp, offset, OS_STRDUP, sep, 0))
-				rval = 1;
-			break;
-		default:
-			abort();
-		}
-	}
-	if (disp != NO_DISPLAY)
-		opts_dump(sp, disp);
-	return (rval);
-}
-
-/*
- * o_set --
- *	Set an option's value.
- *
- * PUBLIC: int o_set __P((SCR *, int, u_int, char *, u_long));
- */
-int
-o_set(sp, opt, flags, str, val)
-	SCR *sp;
-	int opt;
-	u_int flags;
-	char *str;
-	u_long val;
-{
-	OPTION *op;
-
-	/* Set a pointer to the options area. */
-	op = F_ISSET(&sp->opts[opt], OPT_GLOBAL) ?
-	    &sp->gp->opts[sp->opts[opt].o_cur.val] : &sp->opts[opt];
-
-	/* Copy the string, if requested. */
-	if (LF_ISSET(OS_STRDUP) && (str = strdup(str)) == NULL) {
-		msgq(sp, M_SYSERR, NULL);
-		return (1);
-	}
-
-	/* Free the previous string, if requested, and set the value. */
-	if LF_ISSET(OS_DEF)
-		if (LF_ISSET(OS_STR | OS_STRDUP)) {
-			if (!LF_ISSET(OS_NOFREE) && op->o_def.str != NULL)
-				free(op->o_def.str);
-			op->o_def.str = str;
-		} else
-			op->o_def.val = val;
-	else
-		if (LF_ISSET(OS_STR | OS_STRDUP)) {
-			if (!LF_ISSET(OS_NOFREE) && op->o_cur.str != NULL)
-				free(op->o_cur.str);
-			op->o_cur.str = str;
-		} else
-			op->o_cur.val = val;
-	return (0);
-}
-
-/*
- * opts_empty --
- *	Return 1 if the string option is invalid, 0 if it's OK.
- *
- * PUBLIC: int opts_empty __P((SCR *, int, int));
- */
-int
-opts_empty(sp, off, silent)
-	SCR *sp;
-	int off, silent;
-{
-	char *p;
-
-	if ((p = O_STR(sp, off)) == NULL || p[0] == '\0') {
-		if (!silent)
-			msgq_str(sp, M_ERR, optlist[off].name,
-			    "305|No %s edit option specified");
-		return (1);
-	}
-	return (0);
-}
-
-/*
- * opts_dump --
- *	List the current values of selected options.
- *
- * PUBLIC: void opts_dump __P((SCR *, enum optdisp));
- */
-void
-opts_dump(sp, type)
-	SCR *sp;
-	enum optdisp type;
-{
-	OPTLIST const *op;
-	int base, b_num, cnt, col, colwidth, curlen, s_num;
-	int numcols, numrows, row;
-	int b_op[O_OPTIONCOUNT], s_op[O_OPTIONCOUNT];
-	char nbuf[20];
-
-	/*
-	 * Options are output in two groups -- those that fit in a column and
-	 * those that don't.  Output is done on 6 character "tab" boundaries
-	 * for no particular reason.  (Since we don't output tab characters,
-	 * we can ignore the terminal's tab settings.)  Ignore the user's tab
-	 * setting because we have no idea how reasonable it is.
-	 *
-	 * Find a column width we can live with, testing from 10 columns to 1.
-	 */
-	for (numcols = 10; numcols > 1; --numcols) {
-		colwidth = sp->cols / numcols & ~(STANDARD_TAB - 1);
-		if (colwidth >= 10) {
-			colwidth =
-			    (colwidth + STANDARD_TAB) & ~(STANDARD_TAB - 1);
-			numcols = sp->cols / colwidth;
-			break;
-		}
-		colwidth = 0;
-	}
-
-	/*
-	 * Get the set of options to list, entering them into
-	 * the column list or the overflow list.
-	 */
-	for (b_num = s_num = 0, op = optlist; op->name != NULL; ++op) {
-		cnt = op - optlist;
-
-		/* If OPT_NDISP set, it's never displayed. */
-		if (F_ISSET(op, OPT_NDISP))
-			continue;
-
-		switch (type) {
-		case ALL_DISPLAY:		/* Display all. */
-			break;
-		case CHANGED_DISPLAY:		/* Display changed. */
-			/* If OPT_ADISP set, it's always "changed". */
-			if (F_ISSET(op, OPT_ADISP))
-				break;
-			switch (op->type) {
-			case OPT_0BOOL:
-			case OPT_1BOOL:
-			case OPT_NUM:
-				if (O_VAL(sp, cnt) == O_D_VAL(sp, cnt))
-					continue;
-				break;
-			case OPT_STR:
-				if (O_STR(sp, cnt) == O_D_STR(sp, cnt) ||
-				    O_D_STR(sp, cnt) != NULL &&
-				    !strcmp(O_STR(sp, cnt), O_D_STR(sp, cnt)))
-					continue;
-				break;
-			}
-			break;
-		case SELECT_DISPLAY:		/* Display selected. */
-			if (!F_ISSET(&sp->opts[cnt], OPT_SELECTED))
-				continue;
-			break;
-		default:
-		case NO_DISPLAY:
-			abort();
-		}
-		F_CLR(&sp->opts[cnt], OPT_SELECTED);
-
-		curlen = strlen(op->name);
-		switch (op->type) {
-		case OPT_0BOOL:
-		case OPT_1BOOL:
-			if (!O_ISSET(sp, cnt))
-				curlen += 2;
-			break;
-		case OPT_NUM:
-			(void)snprintf(nbuf,
-			    sizeof(nbuf), "%ld", O_VAL(sp, cnt));
-			curlen += strlen(nbuf);
-			break;
-		case OPT_STR:
-			if (O_STR(sp, cnt) != NULL)
-				curlen += strlen(O_STR(sp, cnt));
-			curlen += 3;
-			break;
-		}
-		/* Offset by 2 so there's a gap. */
-		if (curlen <= colwidth - 2)
-			s_op[s_num++] = cnt;
-		else
-			b_op[b_num++] = cnt;
-	}
-
-	if (s_num > 0) {
-		/* Figure out the number of rows. */
-		if (s_num > numcols) {
-			numrows = s_num / numcols;
-			if (s_num % numcols)
-				++numrows;
-		} else
-			numrows = 1;
-
-		/* Display the options in sorted order. */
-		for (row = 0; row < numrows;) {
-			for (base = row, col = 0; col < numcols; ++col) {
-				cnt = opts_print(sp, &optlist[s_op[base]]);
-				if ((base += numrows) >= s_num)
-					break;
-				(void)ex_printf(sp, "%*s",
-				    (int)(colwidth - cnt), "");
-			}
-			if (++row < numrows || b_num)
-				(void)ex_puts(sp, "\n");
-		}
-	}
-
-	for (row = 0; row < b_num;) {
-		(void)opts_print(sp, &optlist[b_op[row]]);
-		if (++row < b_num)
-			(void)ex_puts(sp, "\n");
-	}
-	(void)ex_puts(sp, "\n");
-}
-
-/*
- * opts_print --
- *	Print out an option.
- */
-static int
-opts_print(sp, op)
-	SCR *sp;
-	OPTLIST const *op;
-{
-	int curlen, offset;
-
-	curlen = 0;
-	offset = op - optlist;
-	switch (op->type) {
-	case OPT_0BOOL:
-	case OPT_1BOOL:
-		curlen += ex_printf(sp,
-		    "%s%s", O_ISSET(sp, offset) ? "" : "no", op->name);
-		break;
-	case OPT_NUM:
-		curlen += ex_printf(sp, "%s=%ld", op->name, O_VAL(sp, offset));
-		break;
-	case OPT_STR:
-		curlen += ex_printf(sp, "%s=\"%s\"", op->name,
-		    O_STR(sp, offset) == NULL ? "" : O_STR(sp, offset));
-		break;
-	}
-	return (curlen);
-}
-
-/*
- * opts_save --
- *	Write the current configuration to a file.
- *
- * PUBLIC: int opts_save __P((SCR *, FILE *));
- */
-int
-opts_save(sp, fp)
-	SCR *sp;
-	FILE *fp;
-{
-	OPTLIST const *op;
-	int ch, cnt;
-	char *p;
-
-	for (op = optlist; op->name != NULL; ++op) {
-		if (F_ISSET(op, OPT_NOSAVE))
-			continue;
-		cnt = op - optlist;
-		switch (op->type) {
-		case OPT_0BOOL:
-		case OPT_1BOOL:
-			if (O_ISSET(sp, cnt))
-				(void)fprintf(fp, "set %s\n", op->name);
-			else
-				(void)fprintf(fp, "set no%s\n", op->name);
-			break;
-		case OPT_NUM:
-			(void)fprintf(fp,
-			    "set %s=%-3ld\n", op->name, O_VAL(sp, cnt));
-			break;
-		case OPT_STR:
-			if (O_STR(sp, cnt) == NULL)
-				break;
-			(void)fprintf(fp, "set ");
-			for (p = op->name; (ch = *p) != '\0'; ++p) {
-				if (isblank(ch) || ch == '\\')
-					(void)putc('\\', fp);
-				(void)putc(ch, fp);
-			}
-			(void)putc('=', fp);
-			for (p = O_STR(sp, cnt); (ch = *p) != '\0'; ++p) {
-				if (isblank(ch) || ch == '\\')
-					(void)putc('\\', fp);
-				(void)putc(ch, fp);
-			}
-			(void)putc('\n', fp);
-			break;
-		}
-		if (ferror(fp)) {
-			msgq(sp, M_SYSERR, NULL);
-			return (1);
-		}
-	}
-	return (0);
-}
-
-/* 
- * opts_search --
- *	Search for an option.
- *
- * PUBLIC: OPTLIST const *opts_search __P((char *));
- */
-OPTLIST const *
-opts_search(name)
-	char *name;
-{
-	OPTLIST const *op, *found;
-	OABBREV atmp, *ap;
-	OPTLIST otmp;
-	size_t len;
-
-	/* Check list of abbreviations. */
-	atmp.name = name;
-	if ((ap = bsearch(&atmp, abbrev, sizeof(abbrev) / sizeof(OABBREV) - 1,
-	    sizeof(OABBREV), opts_abbcmp)) != NULL)
-		return (optlist + ap->offset);
-
-	/* Check list of options. */
-	otmp.name = name;
-	if ((op = bsearch(&otmp, optlist, sizeof(optlist) / sizeof(OPTLIST) - 1,
-	    sizeof(OPTLIST), opts_cmp)) != NULL)
-		return (op);
-		
-	/*
-	 * Check to see if the name is the prefix of one (and only one)
-	 * option.  If so, return the option.
-	 */
-	len = strlen(name);
-	for (found = NULL, op = optlist; op->name != NULL; ++op) {
-		if (op->name[0] < name[0])
-			continue;
-		if (op->name[0] > name[0])
-			break;
-		if (!memcmp(op->name, name, len)) {
-			if (found != NULL)
-				return (NULL);
-			found = op;
-		}
-	}
-	return (found);
-}
-
-/* 
- * opts_nomatch --
- *	Standard nomatch error message for options.
- *
- * PUBLIC: void opts_nomatch __P((SCR *, char *));
- */
-void
-opts_nomatch(sp, name)
-	SCR *sp;
-	char *name;
-{
-	msgq_str(sp, M_ERR, name,
-	    "033|set: no %s option: 'set all' gives all option values");
-}
-
-static int
-opts_abbcmp(a, b)
-        const void *a, *b;
-{
-        return(strcmp(((OABBREV *)a)->name, ((OABBREV *)b)->name));
-}
-
-static int
-opts_cmp(a, b)
-        const void *a, *b;
-{
-        return(strcmp(((OPTLIST *)a)->name, ((OPTLIST *)b)->name));
-}
-
-/*
- * opts_copy --
- *	Copy a screen's OPTION array.
- *
- * PUBLIC: int opts_copy __P((SCR *, SCR *));
- */
-int
-opts_copy(orig, sp)
-	SCR *orig, *sp;
-{
-	int cnt, rval;
-
-	/* Copy most everything without change. */
-	memcpy(sp->opts, orig->opts, sizeof(orig->opts));
-
-	/* Copy the string edit options. */
-	for (cnt = rval = 0; cnt < O_OPTIONCOUNT; ++cnt) {
-		if (optlist[cnt].type != OPT_STR ||
-		    F_ISSET(&optlist[cnt], OPT_GLOBAL))
-			continue;
-		/*
-		 * If never set, or already failed, NULL out the entries --
-		 * have to continue after failure, otherwise would have two
-		 * screens referencing the same memory.
-		 */
-		if (rval || O_STR(sp, cnt) == NULL) {
-			o_set(sp, cnt, OS_NOFREE | OS_STR, NULL, 0);
-			o_set(sp, cnt, OS_DEF | OS_NOFREE | OS_STR, NULL, 0);
-			continue;
-		}
-
-		/* Copy the current string. */
-		if (o_set(sp, cnt, OS_NOFREE | OS_STRDUP, O_STR(sp, cnt), 0)) {
-			o_set(sp, cnt, OS_DEF | OS_NOFREE | OS_STR, NULL, 0);
-			goto nomem;
-		}
-
-		/* Copy the default string. */
-		if (O_D_STR(sp, cnt) != NULL && o_set(sp, cnt,
-		    OS_DEF | OS_NOFREE | OS_STRDUP, O_D_STR(sp, cnt), 0)) {
-nomem:			msgq(orig, M_SYSERR, NULL);
-			rval = 1;
-		}
-	}
-	return (rval);
-}
-
-/*
- * opts_free --
- *	Free all option strings
- *
- * PUBLIC: void opts_free __P((SCR *));
- */
-void
-opts_free(sp)
-	SCR *sp;
-{
-	int cnt;
-
-	for (cnt = 0; cnt < O_OPTIONCOUNT; ++cnt) {
-		if (optlist[cnt].type != OPT_STR ||
-		    F_ISSET(&optlist[cnt], OPT_GLOBAL))
-			continue;
-		if (O_STR(sp, cnt) != NULL)
-			free(O_STR(sp, cnt));
-		if (O_D_STR(sp, cnt) != NULL)
-			free(O_D_STR(sp, cnt));
-	}
-}