Import the latest version of the 44BSD C-shell -- tcsh-6.09.vendor/tcsh/6.09

1 files changed, 1706 insertions, 0 deletions

diff --git a/contrib/tcsh/ed.screen.c b/contrib/tcsh/ed.screen.c
new file mode 100644
index 000000000000..2d4be8ad3a6c
--- /dev/null
+++ b/contrib/tcsh/ed.screen.c
@@ -0,0 +1,1706 @@
+/* $Header: /src/pub/tcsh/ed.screen.c,v 3.46 1999/02/06 15:18:56 christos Exp $ */
+/*
+ * ed.screen.c: Editor/termcap-curses interface
+ */
+/*-
+ * Copyright (c) 1980, 1991 The Regents of the University of California.
+ * All rights reserved.
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions
+ * are met:
+ * 1. Redistributions of source code must retain the above copyright
+ *    notice, this list of conditions and the following disclaimer.
+ * 2. Redistributions in binary form must reproduce the above copyright
+ *    notice, this list of conditions and the following disclaimer in the
+ *    documentation and/or other materials provided with the distribution.
+ * 3. All advertising materials mentioning features or use of this software
+ *    must display the following acknowledgement:
+ *	This product includes software developed by the University of
+ *	California, Berkeley and its contributors.
+ * 4. Neither the name of the University nor the names of its contributors
+ *    may be used to endorse or promote products derived from this software
+ *    without specific prior written permission.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
+ * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
+ * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
+ * ARE DISCLAIMED.  IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
+ * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
+ * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
+ * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
+ * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
+ * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
+ * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
+ * SUCH DAMAGE.
+ */
+#include "sh.h"
+
+RCSID("$Id: ed.screen.c,v 3.46 1999/02/06 15:18:56 christos Exp $")
+
+#include "ed.h"
+#include "tc.h"
+#include "ed.defns.h"
+
+#ifndef POSIX
+/*
+ * We don't prototype these, cause some systems have them wrong!
+ */
+extern int   tgetent	__P(());
+extern char *tgetstr	__P(());
+extern int   tgetflag	__P(());
+extern int   tgetnum	__P(());
+extern char *tgoto	__P(());
+# define PUTPURE putpure
+# define PUTRAW putraw
+#else
+extern int   tgetent	__P((char *, char *));
+extern char *tgetstr	__P((char *, char **));
+extern int   tgetflag	__P((char *));
+extern int   tgetnum	__P((char *));
+extern char *tgoto	__P((char *, int, int));
+extern void  tputs	__P((char *, int, void (*)(int)));
+# define PUTPURE ((void (*)__P((int))) putpure)
+# define PUTRAW ((void (*)__P((int))) putraw)
+#endif
+
+
+/* #define DEBUG_LITERAL */
+
+/*
+ * IMPORTANT NOTE: these routines are allowed to look at the current screen
+ * and the current possition assuming that it is correct.  If this is not
+ * true, then the update will be WRONG!  This is (should be) a valid
+ * assumption...
+ */
+
+#define TC_BUFSIZE 2048
+
+#define GoodStr(a) (tstr[a].str != NULL && tstr[a].str[0] != '\0')
+#define Str(a) tstr[a].str
+#define Val(a) tval[a].val
+
+static struct {
+    char   *b_name;
+    int     b_rate;
+}       baud_rate[] = {
+
+#ifdef B0
+    { "0", B0 },
+#endif
+#ifdef B50
+    { "50", B50 },
+#endif
+#ifdef B75
+    { "75", B75 },
+#endif
+#ifdef B110
+    { "110", B110 },
+#endif
+#ifdef B134
+    { "134", B134 },
+#endif
+#ifdef B150
+    { "150", B150 },
+#endif
+#ifdef B200
+    { "200", B200 },
+#endif
+#ifdef B300
+    { "300", B300 },
+#endif
+#ifdef B600
+    { "600", B600 },
+#endif
+#ifdef B900
+    { "900", B900 },
+#endif
+#ifdef B1200
+    { "1200", B1200 },
+#endif
+#ifdef B1800
+    { "1800", B1800 },
+#endif
+#ifdef B2400
+    { "2400", B2400 },
+#endif
+#ifdef B3600
+    { "3600", B3600 },
+#endif
+#ifdef B4800
+    { "4800", B4800 },
+#endif
+#ifdef B7200
+    { "7200", B7200 },
+#endif
+#ifdef B9600
+    { "9600", B9600 },
+#endif
+#ifdef EXTA
+    { "19200", EXTA },
+#endif
+#ifdef B19200
+    { "19200", B19200 },
+#endif
+#ifdef EXTB
+    { "38400", EXTB },
+#endif
+#ifdef B38400
+    { "38400", B38400 },
+#endif
+    { NULL, 0 }
+};
+
+#define T_al	0
+#define T_bl	1
+#define T_cd	2
+#define T_ce	3
+#define T_ch	4
+#define T_cl	5
+#define	T_dc	6
+#define	T_dl	7
+#define	T_dm	8
+#define	T_ed	9
+#define	T_ei	10
+#define	T_fs	11
+#define	T_ho	12
+#define	T_ic	13
+#define	T_im	14 
+#define	T_ip	15
+#define	T_kd	16
+#define	T_kl	17
+#define T_kr	18
+#define T_ku	19
+#define T_md	20
+#define T_me	21
+#define T_nd	22
+#define T_se	23
+#define T_so	24
+#define T_ts	25
+#define T_up	26
+#define T_us	27
+#define T_ue	28
+#define T_vb	29
+#define T_DC	30
+#define T_DO	31
+#define T_IC	32
+#define T_LE	33
+#define T_RI	34
+#define T_UP	35
+#define T_str	36
+static struct termcapstr {
+    char   *name;
+    char   *long_name;
+    char   *str;
+} tstr[T_str + 1];
+
+
+#define T_am	0
+#define T_pt	1
+#define T_li	2
+#define T_co	3
+#define T_km	4
+#define T_xn	5
+#define T_val	6
+static struct termcapval {
+    char   *name;
+    char   *long_name;
+    int     val;
+} tval[T_val + 1];
+
+void
+terminit()
+{
+#ifdef NLS_CATALOGS
+    int i;
+
+    for (i = 0; i < T_str + 1; i++)
+	xfree((ptr_t) tstr[i].long_name);
+
+    for (i = 0; i < T_val + 1; i++)
+	xfree((ptr_t) tval[i].long_name);
+#endif
+
+    tstr[T_al].name = "al";
+    tstr[T_al].long_name = CSAVS(4, 1, "add new blank line");
+
+    tstr[T_bl].name = "bl";
+    tstr[T_bl].long_name = CSAVS(4, 2, "audible bell");
+
+    tstr[T_cd].name = "cd";
+    tstr[T_cd].long_name = CSAVS(4, 3, "clear to bottom");
+
+    tstr[T_ce].name = "ce";
+    tstr[T_ce].long_name = CSAVS(4, 4, "clear to end of line");
+
+    tstr[T_ch].name = "ch";
+    tstr[T_ch].long_name = CSAVS(4, 5, "cursor to horiz pos");
+
+    tstr[T_cl].name = "cl";
+    tstr[T_cl].long_name = CSAVS(4, 6, "clear screen");
+
+    tstr[T_dc].name = "dc";
+    tstr[T_dc].long_name = CSAVS(4, 7, "delete a character");
+
+    tstr[T_dl].name = "dl";
+    tstr[T_dl].long_name = CSAVS(4, 8, "delete a line");
+
+    tstr[T_dm].name = "dm";
+    tstr[T_dm].long_name = CSAVS(4, 9, "start delete mode");
+
+    tstr[T_ed].name = "ed";
+    tstr[T_ed].long_name = CSAVS(4, 10, "end delete mode");
+
+    tstr[T_ei].name = "ei";
+    tstr[T_ei].long_name = CSAVS(4, 11, "end insert mode");
+
+    tstr[T_fs].name = "fs";
+    tstr[T_fs].long_name = CSAVS(4, 12, "cursor from status line");
+
+    tstr[T_ho].name = "ho";
+    tstr[T_ho].long_name = CSAVS(4, 13, "home cursor");
+
+    tstr[T_ic].name = "ic";
+    tstr[T_ic].long_name = CSAVS(4, 14, "insert character");
+
+    tstr[T_im].name = "im";
+    tstr[T_im].long_name = CSAVS(4, 15, "start insert mode");
+
+    tstr[T_ip].name = "ip";
+    tstr[T_ip].long_name = CSAVS(4, 16, "insert padding");
+
+    tstr[T_kd].name = "kd";
+    tstr[T_kd].long_name = CSAVS(4, 17, "sends cursor down");
+
+    tstr[T_kl].name = "kl";
+    tstr[T_kl].long_name = CSAVS(4, 18, "sends cursor left");
+
+    tstr[T_kr].name = "kr";
+    tstr[T_kr].long_name = CSAVS(4, 19, "sends cursor right");
+
+    tstr[T_ku].name = "ku";
+    tstr[T_ku].long_name = CSAVS(4, 20, "sends cursor up");
+
+    tstr[T_md].name = "md";
+    tstr[T_md].long_name = CSAVS(4, 21, "begin bold");
+
+    tstr[T_me].name = "me";
+    tstr[T_me].long_name = CSAVS(4, 22, "end attributes");
+
+    tstr[T_nd].name = "nd";
+    tstr[T_nd].long_name = CSAVS(4, 23, "non destructive space");
+
+    tstr[T_se].name = "se";
+    tstr[T_se].long_name = CSAVS(4, 24, "end standout");
+
+    tstr[T_so].name = "so";
+    tstr[T_so].long_name = CSAVS(4, 25, "begin standout");
+
+    tstr[T_ts].name = "ts";
+    tstr[T_ts].long_name = CSAVS(4, 26, "cursor to status line");
+
+    tstr[T_up].name = "up";
+    tstr[T_up].long_name = CSAVS(4, 27, "cursor up one");
+
+    tstr[T_us].name = "us";
+    tstr[T_us].long_name = CSAVS(4, 28, "begin underline");
+
+    tstr[T_ue].name = "ue";
+    tstr[T_ue].long_name = CSAVS(4, 29, "end underline");
+
+    tstr[T_vb].name = "vb";
+    tstr[T_vb].long_name = CSAVS(4, 30, "visible bell");
+
+    tstr[T_DC].name = "DC";
+    tstr[T_DC].long_name = CSAVS(4, 31, "delete multiple chars");
+
+    tstr[T_DO].name = "DO";
+    tstr[T_DO].long_name = CSAVS(4, 32, "cursor down multiple");
+
+    tstr[T_IC].name = "IC";
+    tstr[T_IC].long_name = CSAVS(4, 33, "insert multiple chars");
+
+    tstr[T_LE].name = "LE";
+    tstr[T_LE].long_name = CSAVS(4, 34, "cursor left multiple");
+
+    tstr[T_RI].name = "RI";
+    tstr[T_RI].long_name = CSAVS(4, 35, "cursor right multiple");
+
+    tstr[T_UP].name = "UP";
+    tstr[T_UP].long_name = CSAVS(4, 36, "cursor up multiple");
+
+    tstr[T_str].name = NULL;
+    tstr[T_str].long_name = NULL;
+
+
+    tval[T_am].name = "am";
+    tval[T_am].long_name = CSAVS(4, 37, "Has automatic margins");
+
+    tval[T_pt].name = "pt";
+    tval[T_pt].long_name = CSAVS(4, 38, "Can use physical tabs");
+
+    tval[T_li].name = "li";
+    tval[T_li].long_name = CSAVS(4, 39, "Number of lines");
+
+    tval[T_co].name = "co";
+    tval[T_co].long_name = CSAVS(4, 40, "Number of columns");
+
+    tval[T_km].name = "km";
+    tval[T_km].long_name = CSAVS(4, 41, "Has meta key");
+
+    tval[T_xn].name = "xn";
+    tval[T_xn].long_name = CSAVS(4, 42, "Newline ignored at right margin");
+
+    tval[T_val].name = NULL;
+    tval[T_val].long_name = NULL;
+}
+
+/*
+ * A very useful table from justin@crim.ca (Justin Bur) :-)
+ * (Modified by per@erix.ericsson.se (Per Hedeland)
+ *  - first (and second:-) case fixed)
+ *
+ * Description     Termcap variables       tcsh behavior
+ * 		   am      xn              UseRightmost    SendCRLF
+ * --------------  ------- -------         ------------    ------------
+ * Automargins     yes     no              yes             no
+ * Magic Margins   yes     yes             yes             no
+ * No Wrap         no      --              yes             yes
+ */
+
+static bool me_all = 0;		/* does two or more of the attributes use me */
+
+static	void	ReBufferDisplay	__P((void));
+static	void	TCalloc		__P((struct termcapstr *, char *)); 
+
+
+static void
+TCalloc(t, cap)
+    struct termcapstr *t;
+    char   *cap;
+{
+    static char termcap_alloc[TC_BUFSIZE];
+    char    termbuf[TC_BUFSIZE];
+    struct termcapstr *ts;
+    static int tloc = 0;
+    int     tlen, clen;
+
+    if (cap == NULL || *cap == '\0') {
+	t->str = NULL;
+	return;
+    }
+    else
+	clen = strlen(cap);
+
+    if (t->str == NULL)
+	tlen = 0;
+    else
+	tlen = strlen(t->str);
+
+    /*
+     * New string is shorter; no need to allocate space
+     */
+    if (clen <= tlen) {
+	(void) strcpy(t->str, cap);
+	return;
+    }
+
+    /*
+     * New string is longer; see if we have enough space to append
+     */
+    if (tloc + 3 < TC_BUFSIZE) {
+	(void) strcpy(t->str = &termcap_alloc[tloc], cap);
+	tloc += clen + 1;	/* one for \0 */
+	return;
+    }
+
+    /*
+     * Compact our buffer; no need to check compaction, cause we know it
+     * fits...
+     */
+    tlen = 0;
+    for (ts = tstr; ts->name != NULL; ts++)
+	if (t != ts && ts->str != NULL && ts->str[0] != '\0') {
+	    char   *ptr;
+
+	    for (ptr = ts->str; *ptr != '\0'; termbuf[tlen++] = *ptr++)
+		continue;
+	    termbuf[tlen++] = '\0';
+	}
+    (void) memmove((ptr_t) termcap_alloc, (ptr_t) termbuf, (size_t) TC_BUFSIZE);
+    tloc = tlen;
+    if (tloc + 3 >= TC_BUFSIZE) {
+	stderror(ERR_NAME | ERR_TCNOSTR);
+	return;
+    }
+    (void) strcpy(t->str = &termcap_alloc[tloc], cap);
+    tloc += clen + 1;		/* one for \0 */
+    return;
+}
+
+
+/*ARGSUSED*/
+void
+TellTC(what)
+    char   *what;
+{
+    struct termcapstr *t;
+
+    USE(what);
+    xprintf(CGETS(7, 1, "\n\tTcsh thinks your terminal has the\n"));
+    xprintf(CGETS(7, 2, "\tfollowing characteristics:\n\n"));
+    xprintf(CGETS(7, 3, "\tIt has %d columns and %d lines\n"),
+	    Val(T_co), Val(T_li));
+    xprintf(CGETS(7, 4, "\tIt has %s meta key\n"), T_HasMeta ?
+	    CGETS(7, 5, "a") : CGETS(7, 6, "no"));
+    xprintf(CGETS(7, 7, "\tIt can%s use tabs\n"), T_Tabs ?
+	    "" : CGETS(7, 8, " not"));
+    xprintf(CGETS(7, 9, "\tIt %s automatic margins\n"),
+		    (T_Margin&MARGIN_AUTO)?
+		    CGETS(7, 10, "has"):
+		    CGETS(7, 11, "does not have"));
+    if (T_Margin & MARGIN_AUTO)
+	xprintf(CGETS(7, 12, "\tIt %s magic margins\n"),
+			(T_Margin & MARGIN_MAGIC) ?
+			CGETS(7, 10, "has"):
+			CGETS(7, 11, "does not have"));
+
+    for (t = tstr; t->name != NULL; t++)
+	xprintf("\t%36s (%s) == %s\n", t->long_name, t->name,
+		t->str && *t->str ? t->str : CGETS(7, 13, "(empty)"));
+    xputchar('\n');
+}
+
+
+static void
+ReBufferDisplay()
+{
+    register int i;
+    Char  **b;
+    Char  **bufp;
+
+    b = Display;
+    Display = NULL;
+    if (b != NULL) {
+	for (bufp = b; *bufp != NULL; bufp++)
+	    xfree((ptr_t) * bufp);
+	xfree((ptr_t) b);
+    }
+    b = Vdisplay;
+    Vdisplay = NULL;
+    if (b != NULL) {
+	for (bufp = b; *bufp != NULL; bufp++)
+	    xfree((ptr_t) * bufp);
+	xfree((ptr_t) b);
+    }
+    TermH = Val(T_co);
+    TermV = (INBUFSIZE * 4) / TermH + 1;
+    b = (Char **) xmalloc((size_t) (sizeof(Char *) * (TermV + 1)));
+    for (i = 0; i < TermV; i++)
+	b[i] = (Char *) xmalloc((size_t) (sizeof(Char) * (TermH + 1)));
+    b[TermV] = NULL;
+    Display = b;
+    b = (Char **) xmalloc((size_t) (sizeof(Char *) * (TermV + 1)));
+    for (i = 0; i < TermV; i++)
+	b[i] = (Char *) xmalloc((size_t) (sizeof(Char) * (TermH + 1)));
+    b[TermV] = NULL;
+    Vdisplay = b;
+}
+
+void
+SetTC(what, how)
+    char   *what, *how;
+{
+    struct termcapstr *ts;
+    struct termcapval *tv;
+
+    /*
+     * Do the strings first
+     */
+    setname("settc");
+    for (ts = tstr; ts->name != NULL; ts++)
+	if (strcmp(ts->name, what) == 0)
+	    break;
+    if (ts->name != NULL) {
+	TCalloc(ts, how);
+	/*
+	 * Reset variables
+	 */
+	if (GoodStr(T_me) && GoodStr(T_ue))
+	    me_all = (strcmp(Str(T_me), Str(T_ue)) == 0);
+	else
+	    me_all = 0;
+	if (GoodStr(T_me) && GoodStr(T_se))
+	    me_all |= (strcmp(Str(T_me), Str(T_se)) == 0);
+
+	T_CanCEOL = GoodStr(T_ce);
+	T_CanDel = GoodStr(T_dc) || GoodStr(T_DC);
+	T_CanIns = GoodStr(T_im) || GoodStr(T_ic) || GoodStr(T_IC);
+	T_CanUP = GoodStr(T_up) || GoodStr(T_UP);
+	return;
+    }
+
+    /*
+     * Do the numeric ones second
+     */
+    for (tv = tval; tv->name != NULL; tv++)
+	if (strcmp(tv->name, what) == 0)
+	    break;
+
+    if (tv->name != NULL) {
+	if (tv == &tval[T_pt] || tv == &tval[T_km] || 
+	    tv == &tval[T_am] || tv == &tval[T_xn]) {
+	    if (strcmp(how, "yes") == 0)
+		tv->val = 1;
+	    else if (strcmp(how, "no") == 0)
+		tv->val = 0;
+	    else {
+		stderror(ERR_SETTCUS, tv->name);
+		return;
+	    }
+	    T_Tabs = (Char) Val(T_pt);
+	    T_HasMeta = (Char) Val(T_km);
+	    T_Margin = (Char) Val(T_am) ? MARGIN_AUTO : 0;
+	    T_Margin |= (Char) Val(T_xn) ? MARGIN_MAGIC : 0;
+	    if (tv == &tval[T_am] || tv == &tval[T_xn]) 
+		ChangeSize(Val(T_li), Val(T_co));
+	    return;
+	}
+	else {
+	    tv->val = atoi(how);
+	    T_Cols = (Char) Val(T_co);
+	    T_Lines = (Char) Val(T_li);
+	    if (tv == &tval[T_co] || tv == &tval[T_li])
+		ChangeSize(Val(T_li), Val(T_co));
+	    return;
+	}
+    }
+    stderror(ERR_NAME | ERR_TCCAP, what);
+    return;
+}
+
+
+/*
+ * Print the termcap string out with variable substitution
+ */
+void
+EchoTC(v)
+    Char  **v;
+{
+    char   *cap, *scap, cv[BUFSIZE];
+    int     arg_need, arg_cols, arg_rows;
+    int     verbose = 0, silent = 0;
+    char   *area;
+    static char *fmts = "%s\n", *fmtd = "%d\n";
+    struct termcapstr *t;
+    char    buf[TC_BUFSIZE];
+
+    area = buf;
+
+    setname("echotc");
+
+    tglob(v);
+    if (gflag) {
+	v = globall(v);
+	if (v == 0)
+	    stderror(ERR_NAME | ERR_NOMATCH);
+    }
+    else
+	v = gargv = saveblk(v);
+    trim(v);
+
+    if (!*v || *v[0] == '\0')
+	return;
+    if (v[0][0] == '-') {
+	switch (v[0][1]) {
+	case 'v':
+	    verbose = 1;
+	    break;
+	case 's':
+	    silent = 1;
+	    break;
+	default:
+	    stderror(ERR_NAME | ERR_TCUSAGE);
+	    break;
+	}
+	v++;
+    }
+    if (!*v || *v[0] == '\0')
+	return;
+    (void) strcpy(cv, short2str(*v));
+    if (strcmp(cv, "tabs") == 0) {
+	xprintf(fmts, T_Tabs ? CGETS(7, 14, "yes") :
+		CGETS(7, 15, "no"));
+	flush();
+	return;
+    }
+    else if (strcmp(cv, "meta") == 0) {
+	xprintf(fmts, Val(T_km) ? CGETS(7, 14, "yes") :
+		CGETS(7, 15, "no"));
+	flush();
+	return;
+    }
+    else if (strcmp(cv, "xn") == 0) {
+	xprintf(fmts, T_Margin & MARGIN_MAGIC ? CGETS(7, 14, "yes") :
+		CGETS(7, 15,  "no"));
+	flush();
+	return;
+    }
+    else if (strcmp(cv, "am") == 0) {
+	xprintf(fmts, T_Margin & MARGIN_AUTO ? CGETS(7, 14, "yes") :
+		CGETS(7, 15, "no"));
+	flush();
+	return;
+    }
+    else if (strcmp(cv, "baud") == 0) {
+	int     i;
+
+	for (i = 0; baud_rate[i].b_name != NULL; i++)
+	    if (T_Speed == baud_rate[i].b_rate) {
+		xprintf(fmts, baud_rate[i].b_name);
+		flush();
+		return;
+	    }
+	xprintf(fmtd, 0);
+	flush();
+	return;
+    }
+    else if (strcmp(cv, "rows") == 0 || strcmp(cv, "lines") == 0) {
+	xprintf(fmtd, Val(T_li));
+	flush();
+	return;
+    }
+    else if (strcmp(cv, "cols") == 0) {
+	xprintf(fmtd, Val(T_co));
+	flush();
+	return;
+    }
+
+    /* 
+     * Try to use our local definition first
+     */
+    scap = NULL;
+    for (t = tstr; t->name != NULL; t++)
+	if (strcmp(t->name, cv) == 0) {
+	    scap = t->str;
+	    break;
+	}
+    if (t->name == NULL)
+	scap = tgetstr(cv, &area);
+    if (!scap || scap[0] == '\0') {
+	if (tgetflag(cv)) {
+	    xprintf(CGETS(7, 14, "yes\n"));
+	    return;
+	}
+	if (silent)
+	    return;
+	else
+	    stderror(ERR_NAME | ERR_TCCAP, cv);
+    }
+
+    /*
+     * Count home many values we need for this capability.
+     */
+    for (cap = scap, arg_need = 0; *cap; cap++)
+	if (*cap == '%')
+	    switch (*++cap) {
+	    case 'd':
+	    case '2':
+	    case '3':
+	    case '.':
+	    case '+':
+		arg_need++;
+		break;
+	    case '%':
+	    case '>':
+	    case 'i':
+	    case 'r':
+	    case 'n':
+	    case 'B':
+	    case 'D':
+		break;
+	    default:
+		/*
+		 * hpux has lot's of them...
+		 */
+		if (verbose)
+		    stderror(ERR_NAME | ERR_TCPARM, *cap);
+		/* This is bad, but I won't complain */
+		break;
+	    }
+
+    switch (arg_need) {
+    case 0:
+	v++;
+	if (*v && *v[0]) {
+	    if (silent)
+		return;
+	    else
+		stderror(ERR_NAME | ERR_TCARGS, cv, arg_need);
+	}
+	(void) tputs(scap, 1, PUTRAW);
+	break;
+    case 1:
+	v++;
+	if (!*v || *v[0] == '\0')
+	    stderror(ERR_NAME | ERR_TCNARGS, cv, 1);
+	arg_cols = 0;
+	arg_rows = atoi(short2str(*v));
+	v++;
+	if (*v && *v[0]) {
+	    if (silent)
+		return;
+	    else
+		stderror(ERR_NAME | ERR_TCARGS, cv, arg_need);
+	}
+	(void) tputs(tgoto(scap, arg_cols, arg_rows), 1, PUTRAW);
+	break;
+    default:
+	/* This is wrong, but I will ignore it... */
+	if (verbose)
+	    stderror(ERR_NAME | ERR_TCARGS, cv, arg_need);
+	/*FALLTHROUGH*/
+    case 2:
+	v++;
+	if (!*v || *v[0] == '\0') {
+	    if (silent)
+		return;
+	    else
+		stderror(ERR_NAME | ERR_TCNARGS, cv, 2);
+	}
+	arg_cols = atoi(short2str(*v));
+	v++;
+	if (!*v || *v[0] == '\0') {
+	    if (silent)
+		return;
+	    else
+		stderror(ERR_NAME | ERR_TCNARGS, cv, 2);
+	}
+	arg_rows = atoi(short2str(*v));
+	v++;
+	if (*v && *v[0]) {
+	    if (silent)
+		return;
+	    else
+		stderror(ERR_NAME | ERR_TCARGS, cv, arg_need);
+	}
+	(void) tputs(tgoto(scap, arg_cols, arg_rows), arg_rows, PUTRAW);
+	break;
+    }
+    flush();
+    if (gargv) {
+	blkfree(gargv);
+	gargv = 0;
+    }
+}
+
+bool    GotTermCaps = 0;
+
+static struct {
+    Char   *name;
+    int     key;
+    XmapVal fun;
+    int	    type;
+} arrow[] = {
+#define A_K_DN	0
+    { STRdown,	T_kd },
+#define A_K_UP	1
+    { STRup,	T_ku },
+#define A_K_LT	2
+    { STRleft,	T_kl },
+#define A_K_RT	3
+    { STRright,	T_kr }
+};
+
+
+void
+ResetArrowKeys()
+{
+    arrow[A_K_DN].fun.cmd = F_DOWN_HIST;
+    arrow[A_K_DN].type    = XK_CMD;
+
+    arrow[A_K_UP].fun.cmd = F_UP_HIST;
+    arrow[A_K_UP].type    = XK_CMD;
+
+    arrow[A_K_LT].fun.cmd = F_CHARBACK;
+    arrow[A_K_LT].type    = XK_CMD;
+
+    arrow[A_K_RT].fun.cmd = F_CHARFWD;
+    arrow[A_K_RT].type    = XK_CMD;
+
+}
+
+void
+DefaultArrowKeys() 
+{
+    static Char strA[] = {033, '[', 'A', '\0'};
+    static Char strB[] = {033, '[', 'B', '\0'};
+    static Char strC[] = {033, '[', 'C', '\0'};
+    static Char strD[] = {033, '[', 'D', '\0'};
+    static Char stOA[] = {033, 'O', 'A', '\0'};
+    static Char stOB[] = {033, 'O', 'B', '\0'};
+    static Char stOC[] = {033, 'O', 'C', '\0'};
+    static Char stOD[] = {033, 'O', 'D', '\0'};
+
+    CStr cs;
+#ifdef _OSD_POSIX
+    if (strA[0] == 033)
+    {
+	strA[0] = CTL_ESC('\033');
+	strB[0] = CTL_ESC('\033');
+	strC[0] = CTL_ESC('\033');
+	strD[0] = CTL_ESC('\033');
+	stOA[0] = CTL_ESC('\033');
+	stOB[0] = CTL_ESC('\033');
+	stOC[0] = CTL_ESC('\033');
+	stOD[0] = CTL_ESC('\033');
+    }
+#endif
+
+    cs.len = 3;
+
+    cs.buf = strA; AddXkey(&cs, &arrow[A_K_UP].fun, arrow[A_K_UP].type);
+    cs.buf = strB; AddXkey(&cs, &arrow[A_K_DN].fun, arrow[A_K_DN].type);
+    cs.buf = strC; AddXkey(&cs, &arrow[A_K_RT].fun, arrow[A_K_RT].type);
+    cs.buf = strD; AddXkey(&cs, &arrow[A_K_LT].fun, arrow[A_K_LT].type);
+    cs.buf = stOA; AddXkey(&cs, &arrow[A_K_UP].fun, arrow[A_K_UP].type);
+    cs.buf = stOB; AddXkey(&cs, &arrow[A_K_DN].fun, arrow[A_K_DN].type);
+    cs.buf = stOC; AddXkey(&cs, &arrow[A_K_RT].fun, arrow[A_K_RT].type);
+    cs.buf = stOD; AddXkey(&cs, &arrow[A_K_LT].fun, arrow[A_K_LT].type);
+ 
+    if (VImode) {
+	cs.len = 2;
+	cs.buf = &strA[1]; AddXkey(&cs, &arrow[A_K_UP].fun, arrow[A_K_UP].type);
+	cs.buf = &strB[1]; AddXkey(&cs, &arrow[A_K_DN].fun, arrow[A_K_DN].type);
+	cs.buf = &strC[1]; AddXkey(&cs, &arrow[A_K_RT].fun, arrow[A_K_RT].type);
+	cs.buf = &strD[1]; AddXkey(&cs, &arrow[A_K_LT].fun, arrow[A_K_LT].type);
+	cs.buf = &stOA[1]; AddXkey(&cs, &arrow[A_K_UP].fun, arrow[A_K_UP].type);
+	cs.buf = &stOB[1]; AddXkey(&cs, &arrow[A_K_DN].fun, arrow[A_K_DN].type);
+	cs.buf = &stOC[1]; AddXkey(&cs, &arrow[A_K_RT].fun, arrow[A_K_RT].type);
+	cs.buf = &stOD[1]; AddXkey(&cs, &arrow[A_K_LT].fun, arrow[A_K_LT].type);
+    }
+}
+
+
+int
+SetArrowKeys(name, fun, type)
+    CStr *name;
+    XmapVal *fun;
+    int type;
+{
+    int i;
+    for (i = 0; i < 4; i++)
+	if (Strcmp(name->buf, arrow[i].name) == 0) {
+	    arrow[i].fun  = *fun;
+	    arrow[i].type = type;
+	    return 0;
+	}
+    return -1;
+}
+
+int
+IsArrowKey(name)
+    Char *name;
+{
+    int i;
+    for (i = 0; i < 4; i++)
+	if (Strcmp(name, arrow[i].name) == 0)
+	    return 1;
+    return 0;
+}
+
+int
+ClearArrowKeys(name)
+    CStr *name;
+{
+    int i;
+    for (i = 0; i < 4; i++)
+	if (Strcmp(name->buf, arrow[i].name) == 0) {
+	    arrow[i].type = XK_NOD;
+	    return 0;
+	}
+    return -1;
+}
+
+void
+PrintArrowKeys(name)
+    CStr *name;
+{
+    int i;
+
+    for (i = 0; i < 4; i++)
+	if (name->len == 0 || Strcmp(name->buf, arrow[i].name) == 0)
+	    if (arrow[i].type != XK_NOD) {
+		CStr cs;
+		cs.buf = arrow[i].name;
+		cs.len = Strlen(cs.buf);
+		(void) printOne(&cs, &arrow[i].fun, arrow[i].type);
+	    }
+}
+
+
+void
+BindArrowKeys()
+{
+    KEYCMD *map, *dmap;
+    int     i, j;
+    char   *p;
+    CStr    cs;
+
+    if (!GotTermCaps)
+	return;
+    map = VImode ? CcAltMap : CcKeyMap;
+    dmap = VImode ? CcViCmdMap : CcEmacsMap;
+
+    DefaultArrowKeys();
+
+    for (i = 0; i < 4; i++) {
+	p = tstr[arrow[i].key].str;
+	if (p && *p) {
+	    j = (unsigned char) *p;
+	    cs.buf = str2short(p);
+	    cs.len = Strlen(cs.buf);
+	    /*
+	     * Assign the arrow keys only if:
+	     *
+	     * 1. They are multi-character arrow keys and the user 
+	     *    has not re-assigned the leading character, or 
+	     *    has re-assigned the leading character to be F_XKEY
+	     * 2. They are single arrow keys pointing to an unassigned key.
+	     */
+	    if (arrow[i].type == XK_NOD) {
+		ClearXkey(map, &cs);
+	    }
+	    else {
+		if (p[1] && (dmap[j] == map[j] || map[j] == F_XKEY)) {
+		    AddXkey(&cs, &arrow[i].fun, arrow[i].type);
+		    map[j] = F_XKEY;
+		}
+		else if (map[j] == F_UNASSIGNED) {
+		    ClearXkey(map, &cs);
+		    if (arrow[i].type == XK_CMD)
+			map[j] = arrow[i].fun.cmd;
+		    else
+			AddXkey(&cs, &arrow[i].fun, arrow[i].type);
+		}
+	    }
+	}
+    }
+}
+
+static Char cur_atr = 0;	/* current attributes */
+
+void
+SetAttributes(atr)
+    int     atr;
+{
+    atr &= ATTRIBUTES;
+    if (atr != cur_atr) {
+	if (me_all && GoodStr(T_me)) {
+	    if (((cur_atr & BOLD) && !(atr & BOLD)) ||
+		((cur_atr & UNDER) && !(atr & UNDER)) ||
+		((cur_atr & STANDOUT) && !(atr & STANDOUT))) {
+		(void) tputs(Str(T_me), 1, PUTPURE);
+		cur_atr = 0;
+	    }
+	}
+	if ((atr & BOLD) != (cur_atr & BOLD)) {
+	    if (atr & BOLD) {
+		if (GoodStr(T_md) && GoodStr(T_me)) {
+		    (void) tputs(Str(T_md), 1, PUTPURE);
+		    cur_atr |= BOLD;
+		}
+	    }
+	    else {
+		if (GoodStr(T_md) && GoodStr(T_me)) {
+		    (void) tputs(Str(T_me), 1, PUTPURE);
+		    if ((cur_atr & STANDOUT) && GoodStr(T_se)) {
+			(void) tputs(Str(T_se), 1, PUTPURE);
+			cur_atr &= ~STANDOUT;
+		    }
+		    if ((cur_atr & UNDER) && GoodStr(T_ue)) {
+			(void) tputs(Str(T_ue), 1, PUTPURE);
+			cur_atr &= ~UNDER;
+		    }
+		    cur_atr &= ~BOLD;
+		}
+	    }
+	}
+	if ((atr & STANDOUT) != (cur_atr & STANDOUT)) {
+	    if (atr & STANDOUT) {
+		if (GoodStr(T_so) && GoodStr(T_se)) {
+		    (void) tputs(Str(T_so), 1, PUTPURE);
+		    cur_atr |= STANDOUT;
+		}
+	    }
+	    else {
+		if (GoodStr(T_se)) {
+		    (void) tputs(Str(T_se), 1, PUTPURE);
+		    cur_atr &= ~STANDOUT;
+		}
+	    }
+	}
+	if ((atr & UNDER) != (cur_atr & UNDER)) {
+	    if (atr & UNDER) {
+		if (GoodStr(T_us) && GoodStr(T_ue)) {
+		    (void) tputs(Str(T_us), 1, PUTPURE);
+		    cur_atr |= UNDER;
+		}
+	    }
+	    else {
+		if (GoodStr(T_ue)) {
+		    (void) tputs(Str(T_ue), 1, PUTPURE);
+		    cur_atr &= ~UNDER;
+		}
+	    }
+	}
+    }
+}
+
+/* PWP 6-27-88 -- if the tty driver thinks that we can tab, we ask termcap */
+int
+CanWeTab()
+{
+    return (Val(T_pt));
+}
+
+void
+MoveToLine(where)		/* move to line <where> (first line == 0) */
+    int     where;		/* as efficiently as possible; */
+{
+    int     del;
+
+    if (where == CursorV)
+	return;
+
+    if (where > TermV) {
+#ifdef DEBUG_SCREEN
+	xprintf("MoveToLine: where is ridiculous: %d\r\n", where);
+	flush();
+#endif /* DEBUG_SCREEN */
+	return;
+    }
+
+    del = where - CursorV;
+
+#ifndef WINNT
+    if (del > 0) {
+	while (del > 0) {
+	    if ((T_Margin & MARGIN_AUTO) && Display[CursorV][0] != '\0') {
+		/* move without newline */
+		MoveToChar(TermH - 1);
+		so_write(&Display[CursorV][CursorH], 1); /* updates CursorH/V*/
+		del--;
+	    }
+	    else {
+		if ((del > 1) && GoodStr(T_DO)) {
+		    (void) tputs(tgoto(Str(T_DO), del, del), del, PUTPURE);
+		    del = 0;
+		}
+		else {
+		    for ( ; del > 0; del--) 
+			(void) putraw('\n');
+		    CursorH = 0;	/* because the \n will become \r\n */
+		}
+	    }
+	}
+    }
+    else {			/* del < 0 */
+	if (GoodStr(T_UP) && (-del > 1 || !GoodStr(T_up)))
+	    (void) tputs(tgoto(Str(T_UP), -del, -del), -del, PUTPURE);
+	else {
+	    int i;
+	    if (GoodStr(T_up))
+		for (i = 0; i < -del; i++)
+		    (void) tputs(Str(T_up), 1, PUTPURE);
+	}
+    }
+#else /* WINNT */
+    NT_MoveToLineOrChar(del, 1);
+#endif /* !WINNT */
+    CursorV = where;		/* now where is here */
+}
+
+void
+MoveToChar(where)		/* move to character position (where) */
+    int     where;
+{				/* as efficiently as possible */
+#ifndef WINNT
+    int     del;
+
+mc_again:
+#endif /* WINNT */
+    if (where == CursorH)
+	return;
+
+    if (where >= TermH) {
+#ifdef DEBUG_SCREEN
+	xprintf("MoveToChar: where is riduculous: %d\r\n", where);
+	flush();
+#endif /* DEBUG_SCREEN */
+	return;
+    }
+
+    if (!where) {		/* if where is first column */
+	(void) putraw('\r');	/* do a CR */
+	CursorH = 0;
+	return;
+    }
+
+#ifndef WINNT
+    del = where - CursorH;
+
+    if ((del < -4 || del > 4) && GoodStr(T_ch))
+	/* go there directly */
+	(void) tputs(tgoto(Str(T_ch), where, where), where, PUTPURE);
+    else {
+	int i;
+	if (del > 0) {		/* moving forward */
+	    if ((del > 4) && GoodStr(T_RI))
+		(void) tputs(tgoto(Str(T_RI), del, del), del, PUTPURE);
+	    else {
+		if (T_Tabs) {	/* if I can do tabs, use them */
+		    if ((CursorH & 0370) != (where & 0370)) {
+			/* if not within tab stop */
+			for (i = (CursorH & 0370); i < (where & 0370); i += 8)
+			    (void) putraw('\t');	/* then tab over */
+			CursorH = where & 0370;
+			/* Note: considering that we often want to go to
+			   TermH - 1 for the wrapping, it would be nice to
+			   optimize this case by tabbing to the last column
+			   - but this doesn't work for all terminals! */
+		    }
+		}
+		/* it's usually cheaper to just write the chars, so we do. */
+
+		/* NOTE THAT so_write() WILL CHANGE CursorH!!! */
+		so_write(&Display[CursorV][CursorH], where - CursorH);
+
+	    }
+	}
+	else {			/* del < 0 := moving backward */
+	    if ((-del > 4) && GoodStr(T_LE))
+		(void) tputs(tgoto(Str(T_LE), -del, -del), -del, PUTPURE);
+	    else {		/* can't go directly there */
+		/* if the "cost" is greater than the "cost" from col 0 */
+		if (T_Tabs ? (-del > ((where >> 3) + (where & 07)))
+		    : (-del > where)) {
+		    (void) putraw('\r');	/* do a CR */
+		    CursorH = 0;
+		    goto mc_again;	/* and try again */
+		}
+		for (i = 0; i < -del; i++)
+		    (void) putraw('\b');
+	    }
+	}
+    }
+#else /* WINNT */
+    NT_MoveToLineOrChar(where, 0);
+#endif /* !WINNT */
+    CursorH = where;		/* now where is here */
+}
+
+void
+so_write(cp, n)
+    register Char *cp;
+    register int n;
+{
+    if (n <= 0)
+	return;			/* catch bugs */
+
+    if (n > TermH) {
+#ifdef DEBUG_SCREEN
+	xprintf("so_write: n is riduculous: %d\r\n", n);
+	flush();
+#endif /* DEBUG_SCREEN */
+	return;
+    }
+
+    do {
+	if (*cp & LITERAL) {
+	    extern Char *litptr[];
+	    Char   *d;
+
+#ifdef DEBUG_LITERAL
+	    xprintf("so: litnum %d, litptr %x\r\n",
+		    *cp & CHAR, litptr[*cp & CHAR]);
+#endif /* DEBUG_LITERAL */
+#if defined(WINNT) && !defined(COLOR_LS_F)
+	    {
+		char buf[256], *ptr = &buf[0];
+		for (d = litptr[*cp++ & CHAR]; *d & LITERAL; d++)
+		    *ptr++ = (*d & CHAR);
+		flush();
+		set_cons_attr(buf);
+	    }
+#else /* !WINNT || COLOR_LS_F */
+	    for (d = litptr[*cp++ & CHAR]; *d & LITERAL; d++)
+		(void) putraw(*d & CHAR);
+#endif /* WINNT && !COLOR_LS_F */
+	    (void) putraw(*d);
+
+	}
+	else
+	    (void) putraw(*cp++);
+	CursorH++;
+    } while (--n);
+
+    if (CursorH >= TermH) { /* wrap? */
+	if (T_Margin & MARGIN_AUTO) { /* yes */
+	    CursorH = 0;
+	    CursorV++;
+	    if (T_Margin & MARGIN_MAGIC) {
+		/* force the wrap to avoid the "magic" situation */
+		Char c;
+		if ((c = Display[CursorV][CursorH]) != '\0')
+		    so_write(&c, 1);
+		else
+		    (void) putraw(' ');
+		CursorH = 1;
+	    }
+	}
+	else			/* no wrap, but cursor stays on screen */
+	    CursorH = TermH - 1;
+    }
+}
+
+
+void
+DeleteChars(num)		/* deletes <num> characters */
+    int     num;
+{
+    if (num <= 0)
+	return;
+
+    if (!T_CanDel) {
+#ifdef DEBUG_EDIT
+	xprintf(CGETS(7, 16, "ERROR: cannot delete\r\n"));
+#endif /* DEBUG_EDIT */
+	flush();
+	return;
+    }
+
+    if (num > TermH) {
+#ifdef DEBUG_SCREEN
+	xprintf(CGETS(7, 17, "DeleteChars: num is riduculous: %d\r\n"), num);
+	flush();
+#endif /* DEBUG_SCREEN */
+	return;
+    }
+
+    if (GoodStr(T_DC))		/* if I have multiple delete */
+	if ((num > 1) || !GoodStr(T_dc)) {	/* if dc would be more expen. */
+	    (void) tputs(tgoto(Str(T_DC), num, num), num, PUTPURE);
+	    return;
+	}
+
+    if (GoodStr(T_dm))		/* if I have delete mode */
+	(void) tputs(Str(T_dm), 1, PUTPURE);
+
+    if (GoodStr(T_dc))		/* else do one at a time */
+	while (num--)
+	    (void) tputs(Str(T_dc), 1, PUTPURE);
+
+    if (GoodStr(T_ed))		/* if I have delete mode */
+	(void) tputs(Str(T_ed), 1, PUTPURE);
+}
+
+void
+Insert_write(cp, num)		/* Puts terminal in insert character mode, */
+    register Char *cp;
+    register int num;		/* or inserts num characters in the line */
+{
+    if (num <= 0)
+	return;
+    if (!T_CanIns) {
+#ifdef DEBUG_EDIT
+	xprintf(CGETS(7, 18, "ERROR: cannot insert\r\n"));
+#endif /* DEBUG_EDIT */
+	flush();
+	return;
+    }
+
+    if (num > TermH) {
+#ifdef DEBUG_SCREEN
+	xprintf(CGETS(7, 19, "StartInsert: num is riduculous: %d\r\n"), num);
+	flush();
+#endif /* DEBUG_SCREEN */
+	return;
+    }
+
+    if (GoodStr(T_IC))		/* if I have multiple insert */
+	if ((num > 1) || !GoodStr(T_ic)) {	/* if ic would be more expen. */
+	    (void) tputs(tgoto(Str(T_IC), num, num), num, PUTPURE);
+	    so_write(cp, num);	/* this updates CursorH/V */
+	    return;
+	}
+
+    if (GoodStr(T_im) && GoodStr(T_ei)) { /* if I have insert mode */
+	(void) tputs(Str(T_im), 1, PUTPURE);
+
+	CursorH += num;
+	do 
+	    (void) putraw(*cp++);
+	while (--num);
+
+	if (GoodStr(T_ip))	/* have to make num chars insert */
+	    (void) tputs(Str(T_ip), 1, PUTPURE);
+
+	(void) tputs(Str(T_ei), 1, PUTPURE);
+	return;
+    }
+
+    do {
+	if (GoodStr(T_ic))	/* have to make num chars insert */
+	    (void) tputs(Str(T_ic), 1, PUTPURE);	/* insert a char */
+
+	(void) putraw(*cp++);
+
+	CursorH++;
+
+	if (GoodStr(T_ip))	/* have to make num chars insert */
+	    (void) tputs(Str(T_ip), 1, PUTPURE);/* pad the inserted char */
+
+    } while (--num);
+
+}
+
+void
+ClearEOL(num)			/* clear to end of line.  There are num */
+    int     num;		/* characters to clear */
+{
+    register int i;
+
+    if (num <= 0)
+	return;
+
+    if (T_CanCEOL && GoodStr(T_ce))
+	(void) tputs(Str(T_ce), 1, PUTPURE);
+    else {
+	for (i = 0; i < num; i++)
+	    (void) putraw(' ');
+	CursorH += num;		/* have written num spaces */
+    }
+}
+
+void
+ClearScreen()
+{				/* clear the whole screen and home */
+    if (GoodStr(T_cl))
+	/* send the clear screen code */
+	(void) tputs(Str(T_cl), Val(T_li), PUTPURE);
+    else if (GoodStr(T_ho) && GoodStr(T_cd)) {
+	(void) tputs(Str(T_ho), Val(T_li), PUTPURE);	/* home */
+	/* clear to bottom of screen */
+	(void) tputs(Str(T_cd), Val(T_li), PUTPURE);
+    }
+    else {
+	(void) putraw('\r');
+	(void) putraw('\n');
+    }
+}
+
+void
+SoundBeep()
+{				/* produce a sound */
+    beep_cmd ();
+    if (adrof(STRnobeep))
+	return;
+
+    if (GoodStr(T_vb) && adrof(STRvisiblebell))
+	(void) tputs(Str(T_vb), 1, PUTPURE);	/* visible bell */
+    else if (GoodStr(T_bl))
+	/* what termcap says we should use */
+	(void) tputs(Str(T_bl), 1, PUTPURE);
+    else
+#ifndef WINNT
+	(void) putraw(CTL_ESC('\007'));	/* an ASCII bell; ^G */
+#else /* WINNT */
+	MessageBeep(MB_ICONQUESTION);
+#endif /* !WINNT */
+}
+
+void
+ClearToBottom()
+{				/* clear to the bottom of the screen */
+    if (GoodStr(T_cd))
+	(void) tputs(Str(T_cd), Val(T_li), PUTPURE);
+    else if (GoodStr(T_ce))
+	(void) tputs(Str(T_ce), Val(T_li), PUTPURE);
+}
+
+void
+GetTermCaps()
+{				/* read in the needed terminal capabilites */
+    register int i;
+    char   *ptr;
+    char    buf[TC_BUFSIZE];
+    static char bp[TC_BUFSIZE];
+    char   *area;
+    struct termcapstr *t;
+
+
+#ifdef SIG_WINDOW
+# ifdef BSDSIGS
+    sigmask_t omask;
+# endif /* BSDSIGS */
+    int     lins, cols;
+
+    /* don't want to confuse things here */
+# ifdef BSDSIGS
+    omask = sigblock(sigmask(SIG_WINDOW)) & ~sigmask(SIG_WINDOW);
+# else /* BSDSIGS */
+    (void) sighold(SIG_WINDOW);
+# endif /* BSDSIGS */
+#endif /* SIG_WINDOW */
+    area = buf;
+
+    GotTermCaps = 1;
+
+    setname("gettermcaps");
+    ptr = getenv("TERM");
+
+#ifdef apollo
+    /* 
+     * If we are on a pad, we pretend that we are dumb. Otherwise the termcap
+     * library will put us in a weird screen mode, thinking that we are going
+     * to use curses
+     */
+    if (isapad())
+	ptr = "dumb";
+#endif /* apollo */
+
+    if (!ptr || !ptr[0] || !strcmp(ptr, "wm") || !strcmp(ptr,"dmx"))
+	ptr = "dumb";
+
+    setzero(bp, TC_BUFSIZE);
+
+    i = tgetent(bp, ptr);
+    if (i <= 0) {
+	if (i == -1) {
+#if (SYSVREL == 0) || defined(IRIS3D)
+	    xprintf(CGETS(7, 20, "%s: Cannot open /etc/termcap.\n"), progname);
+	}
+	else if (i == 0) {
+#endif /* SYSVREL */
+	    xprintf(CGETS(7, 21,
+			  "%s: No entry for terminal type \"%s\"\n"), progname,
+		    getenv("TERM"));
+	}
+	xprintf(CGETS(7, 22, "%s: using dumb terminal settings.\n"), progname);
+	Val(T_co) = 80;		/* do a dumb terminal */
+	Val(T_pt) = Val(T_km) = Val(T_li) = 0;
+	for (t = tstr; t->name != NULL; t++)
+	    TCalloc(t, NULL);
+    }
+    else {
+	/* Can we tab */
+	Val(T_pt) = tgetflag("pt") && !tgetflag("xt");
+	/* do we have a meta? */
+	Val(T_km) = (tgetflag("km") || tgetflag("MT"));
+	Val(T_am) = tgetflag("am");
+	Val(T_xn) = tgetflag("xn");
+	Val(T_co) = tgetnum("co");
+	Val(T_li) = tgetnum("li");
+	for (t = tstr; t->name != NULL; t++)
+	    TCalloc(t, tgetstr(t->name, &area));
+    }
+    if (Val(T_co) < 2)
+	Val(T_co) = 80;		/* just in case */
+    if (Val(T_li) < 1)
+	Val(T_li) = 24;
+
+    T_Cols = (Char) Val(T_co);
+    T_Lines = (Char) Val(T_li);
+    if (T_Tabs)
+	T_Tabs = (Char) Val(T_pt);
+    T_HasMeta = (Char) Val(T_km);
+    T_Margin = (Char) Val(T_am) ? MARGIN_AUTO : 0;
+    T_Margin |= (Char) Val(T_xn) ? MARGIN_MAGIC : 0;
+    T_CanCEOL = GoodStr(T_ce);
+    T_CanDel = GoodStr(T_dc) || GoodStr(T_DC);
+    T_CanIns = GoodStr(T_im) || GoodStr(T_ic) || GoodStr(T_IC);
+    T_CanUP = GoodStr(T_up) || GoodStr(T_UP);
+    if (GoodStr(T_me) && GoodStr(T_ue))
+	me_all = (strcmp(Str(T_me), Str(T_ue)) == 0);
+    else
+	me_all = 0;
+    if (GoodStr(T_me) && GoodStr(T_se))
+	me_all |= (strcmp(Str(T_me), Str(T_se)) == 0);
+
+
+#ifdef DEBUG_SCREEN
+    if (!T_CanUP) {
+	xprintf(CGETS(7, 23, "%s: WARNING: Your terminal cannot move up.\n",
+		progname));
+	xprintf(CGETS(7, 24, "Editing may be odd for long lines.\n"));
+    }
+    if (!T_CanCEOL)
+	xprintf(CGETS(7, 25, "no clear EOL capability.\n"));
+    if (!T_CanDel)
+	xprintf(CGETS(7, 26, "no delete char capability.\n"));
+    if (!T_CanIns)
+	xprintf(CGETS(7, 27, "no insert char capability.\n"));
+#endif /* DEBUG_SCREEN */
+
+
+
+#ifdef SIG_WINDOW
+    (void) GetSize(&lins, &cols);	/* get the correct window size */
+    ChangeSize(lins, cols);
+
+# ifdef BSDSIGS
+    (void) sigsetmask(omask);	/* can change it again */
+# else /* BSDSIGS */
+    (void) sigrelse(SIG_WINDOW);
+# endif /* BSDSIGS */
+#else /* SIG_WINDOW */
+    ChangeSize(Val(T_li), Val(T_co));
+#endif /* SIG_WINDOW */
+
+    BindArrowKeys();
+}
+
+#ifdef SIG_WINDOW
+/* GetSize():
+ *	Return the new window size in lines and cols, and
+ *	true if the size was changed. This can fail if SHIN
+ *	is not a tty, but it will work in most cases.
+ */
+int
+GetSize(lins, cols)
+    int    *lins, *cols;
+{
+    *cols = Val(T_co);
+    *lins = Val(T_li);
+
+#ifdef TIOCGWINSZ
+# define KNOWsize
+# ifndef lint
+    {
+	struct winsize ws;	/* from 4.3 */
+
+	if (ioctl(SHIN, TIOCGWINSZ, (ioctl_t) &ws) != -1) {
+	    if (ws.ws_col)
+		*cols = ws.ws_col;
+	    if (ws.ws_row)
+		*lins = ws.ws_row;
+	}
+    }
+# endif /* !lint */
+#else /* TIOCGWINSZ */
+# ifdef TIOCGSIZE
+#  define KNOWsize
+    {
+	struct ttysize ts;	/* from Sun */
+
+	if (ioctl(SHIN, TIOCGSIZE, (ioctl_t) &ts) != -1) {
+	    if (ts.ts_cols)
+		*cols = ts.ts_cols;
+	    if (ts.ts_lines)
+		*lins = ts.ts_lines;
+	}
+    }
+# endif /* TIOCGSIZE */
+#endif /* TIOCGWINSZ */
+
+    return (Val(T_co) != *cols || Val(T_li) != *lins);
+}
+
+#endif /* SIGWINDOW */
+
+void
+ChangeSize(lins, cols)
+    int     lins, cols;
+{
+    /*
+     * Just in case
+     */
+    Val(T_co) = (cols < 2) ? 80 : cols;
+    Val(T_li) = (lins < 1) ? 24 : lins;
+
+#ifdef WINNT
+      nt_set_size(lins,cols);
+#endif /* WINNT */
+#ifdef KNOWsize
+    /*
+     * We want to affect the environment only when we have a valid
+     * setup, not when we get bad settings. Consider the following scenario:
+     * We just logged in, and we have not initialized the editor yet.
+     * We reset termcap with tset, and not $TERMCAP has the right
+     * terminal size. But since the editor is not initialized yet, and
+     * the kernel's notion of the terminal size might be wrong we arrive
+     * here with lines = columns = 0. If we reset the environment we lose
+     * our only chance to get the window size right.
+     */
+    if (Val(T_co) == cols && Val(T_li) == lins) {
+	Char    buf[10];
+	char   *tptr;
+
+	if (getenv("COLUMNS")) {
+	    (void) Itoa(Val(T_co), buf, 0, 0);
+	    tsetenv(STRCOLUMNS, buf);
+	}
+
+	if (getenv("LINES")) {
+	    (void) Itoa(Val(T_li), buf, 0, 0);
+	    tsetenv(STRLINES, buf);
+	}
+
+	if ((tptr = getenv("TERMCAP")) != NULL) {
+	    /* Leave 64 characters slop in case we enlarge the termcap string */
+	    Char    termcap[1024+64], backup[1024+64], *ptr;
+	    int     i;
+
+	    ptr = str2short(tptr);
+	    (void) Strncpy(termcap, ptr, 1024);
+	    termcap[1023] = '\0';
+
+	    /* update termcap string; first do columns */
+	    buf[0] = 'c';
+	    buf[1] = 'o';
+	    buf[2] = '#';
+	    buf[3] = '\0';
+	    if ((ptr = Strstr(termcap, buf)) == NULL) {
+		(void) Strcpy(backup, termcap);
+	    }
+	    else {
+		i = (int) (ptr - termcap + Strlen(buf));
+		(void) Strncpy(backup, termcap, (size_t) i);
+		backup[i] = '\0';
+		(void) Itoa(Val(T_co), buf, 0, 0);
+		(void) Strcat(backup + i, buf);
+		ptr = Strchr(ptr, ':');
+		(void) Strcat(backup, ptr);
+	    }
+
+	    /* now do lines */
+	    buf[0] = 'l';
+	    buf[1] = 'i';
+	    buf[2] = '#';
+	    buf[3] = '\0';
+	    if ((ptr = Strstr(backup, buf)) == NULL) {
+		(void) Strcpy(termcap, backup);
+	    }
+	    else {
+		i = (int) (ptr - backup + Strlen(buf));
+		(void) Strncpy(termcap, backup, (size_t) i);
+		termcap[i] = '\0';
+		(void) Itoa(Val(T_li), buf, 0, 0);
+		(void) Strcat(termcap, buf);
+		ptr = Strchr(ptr, ':');
+		(void) Strcat(termcap, ptr);
+	    }
+	    /*
+	     * Chop the termcap string at 1024 characters to avoid core-dumps
+	     * in the termcap routines
+	     */
+	    termcap[1023] = '\0';
+	    tsetenv(STRTERMCAP, termcap);
+	}
+    }
+#endif /* KNOWsize */
+
+    ReBufferDisplay();		/* re-make display buffers */
+    ClearDisp();
+}