This patch is not applied because it implements wordwrap in a way that
makes the local screen (where both your text and the other guy's text
get wordwrapped) differ from the remote screen (where they don't). I'm
not convinced this is a good idea.

However, because the patch might be useful, it is included here.

(The diffs were modified by dholland to fix some minor bugs.)


Date: Fri, 17 Apr 1998 18:21:17 -0500
From: Dale Osowski <dosowski0474@VAX2.WINONA.MSUS.EDU>
Subject: talk program

I have added a word wrap feature to "talk" today.  I have attached the
diffs to this email.

I hope there isn't a problem with how I did it.  I added to members to
the xwin_t struct in order to keep track of where a word starts.

--
Dale Osowski
dosowski0474@vax2.winona.msus.edu
http://web.winona.msus.edu/~dosowski

--- display.c	1998/11/27 11:30:43	1.7
+++ display.c	1998/11/27 12:03:08
@@ -40,8 +40,9 @@
 /*
  * The window 'manager', initializes curses and handles the actual
  * displaying of text
  */
+#include <stdlib.h>
 #include "talk.h"
 
 static void xscroll(xwin_t *win, int flag);
 static int readwin(WINDOW *win, int line, int col);
@@ -62,8 +63,37 @@
 
 	return (a > b ? a : b);
 }
 
+
+/* 
+ * Wordwrap added by Dale Osowski (dosowski0474@vax2.winona.msus.edu)
+ * on 4/17/98
+ */
+static void
+wordwrap(xwin_t *win)
+{
+	int oldline = win->x_lspaceline;
+	int oldcol = win->x_lspacecol;
+	int i, n = COLS-1-oldcol-1;
+        char *tomovedown = malloc(n);
+
+	wmove(win->x_win, oldline, oldcol+1);
+	for (i=0; i<n; i++) {
+		tomovedown[i] = readwin(win->x_win, oldline, i+oldcol+1);
+	}
+
+	wmove(win->x_win, oldline, oldcol+1);
+	wclrtoeol(win->x_win);
+	wmove(win->x_win, oldline, oldcol+1);
+	xscroll(win, 0);
+	for (i=0; i<n; i++) {
+		waddch(win->x_win, tomovedown[i]);
+	}
+	free(tomovedown);
+}
+
+
 /*
  * Display some text on somebody's window, processing some control
  * characters while we are at it.
  */
@@ -79,8 +109,14 @@
 			text++;
 			continue;
 		}
 
+                /* Mark position of last space.  For wordwrap */
+		if (*text == ' ')
+		{
+			getyx(win->x_win, win->x_lspaceline, win->x_lspacecol);
+		}
+
 		/* someday erase characters will work properly in unix */
 		if (*text == '\b' || *text == 127) *text = win->cerase;
 
 		/* erase character */
@@ -142,10 +178,16 @@
 			text++;
 			continue;
 		}
 		if (win->x_col == COLS-1) {
-			/* check for wraparound */
-			xscroll(win, 0);
+			/* check for wraparound -- wordwrap */
+			if (win->x_lspaceline == win->x_line && 
+			    win->x_lspacecol > 1) {
+				wordwrap(win);
+			}
+			else {
+				xscroll(win, 0);
+			}
 		}
 		if ((*text & 0x7F) < ' ' && *text != '\t') {
 			waddch(win->x_win, '^');
 			getyx(win->x_win, win->x_line, win->x_col);
--- talk.h	1998/11/27 10:55:58	1.13
+++ talk.h	1998/11/27 11:55:52
@@ -55,8 +55,10 @@
 	int	x_col;
 	char	kill;
 	char	cerase;
 	char	werase;
+	int     x_lspacecol;   /* column of last space character */
+	int     x_lspaceline;  /* line of last space character   */
 } xwin_t;
 
 extern	xwin_t my_win;
 extern	xwin_t his_win;