vi keys from Will Maier.

TODO

@@ -81,3 +81,4 @@
 - show-options
 - let server die when last session does
 - each command should have a print op as well for list keys
+- fix occasion start server problems

input.c

@@ -1,4 +1,4 @@
-/* $Id: input.c,v 1.47 2008-06-04 16:46:23 nicm Exp $ */
+/* $Id: input.c,v 1.48 2008-06-04 18:50:34 nicm Exp $ */
 
 /*
  * Copyright (c) 2007 Nicholas Marriott <nicm@users.sourceforge.net>
@@ -223,8 +223,6 @@ input_parse(struct window *w)
 	else
 		screen_write_start(&ictx->ctx, &w->base, NULL, NULL);
 
-	if (ictx->off != ictx->len)
-		w->flags |= WINDOW_ACTIVITY;
 	while (ictx->off < ictx->len) {
 		ch = ictx->buf[ictx->off++];
 		ictx->state(ch, ictx);
@@ -483,7 +481,8 @@ input_handle_character(u_char ch, struct input_ctx *ictx)
 {
 	log_debug2("-- ch %zu: %hhu (%c)", ictx->off, ch, ch);
 
-	screen_write_put_character(&ictx->ctx, ch);
+	if (screen_write_put_character(&ictx->ctx, ch))
+		ictx->w->flags |= WINDOW_ACTIVITY;
 }
 
 void

screen-display.c

@@ -1,4 +1,4 @@
-/* $Id: screen-display.c,v 1.14 2007-12-06 22:13:14 nicm Exp $ */
+/* $Id: screen-display.c,v 1.15 2008-06-04 18:50:34 nicm Exp $ */
 
 /*
  * Copyright (c) 2007 Nicholas Marriott <nicm@users.sourceforge.net>
@@ -22,6 +22,14 @@
 
 #include "tmux.h"
 
+/* Get a cell. */
+void
+screen_display_get_cell(struct screen *s,
+    u_int px, u_int py, u_char *data, u_char *attr, u_char *colr)
+{
+	screen_get_cell(s, screen_x(s, px), screen_y(s, py), data, attr, colr);
+}
+
 /* Set a cell. */
 void
 screen_display_set_cell(

screen-write.c

@@ -1,4 +1,4 @@
-/* $Id: screen-write.c,v 1.5 2007-12-06 19:57:01 nicm Exp $ */
+/* $Id: screen-write.c,v 1.6 2008-06-04 18:50:34 nicm Exp $ */
 
 /*
  * Copyright (c) 2007 Nicholas Marriott <nicm@users.sourceforge.net>
@@ -98,10 +98,12 @@ screen_write_set_title(struct screen_write_ctx *ctx, char *title)
 }
 
 /* Put a character. */
-void
+int
 screen_write_put_character(struct screen_write_ctx *ctx, u_char ch)
 {
 	struct screen	*s = ctx->s;
+	u_char		 data, attr, colr;
+	int		 n;
 
 	if (s->cx == screen_size_x(s)) {
 		s->cx = 0;
@@ -110,14 +112,20 @@ screen_write_put_character(struct screen_write_ctx *ctx, u_char ch)
 		screen_write_cursor_down_scroll(ctx);
 	} else if (!screen_in_x(s, s->cx) || !screen_in_y(s, s->cy)) {
 		SCREEN_DEBUG(s);
-		return;
+		return (0);
 	}
 
+	screen_display_get_cell(s, s->cx, s->cy, &data, &attr, &colr);
+	if (ch != data || s->attr != attr || colr != s->colr) {
 		screen_display_set_cell(s, s->cx, s->cy, ch, s->attr, s->colr);
+		n = 1;
+	} else
+		n = 0;
 	s->cx++;
 
 	if (ctx->write != NULL)
 		ctx->write(ctx->data, TTY_CHARACTER, ch);
+	return (n);
 }
 
 /* Put a string right-justified. */

tmux.h

@@ -1,4 +1,4 @@
-/* $Id: tmux.h,v 1.129 2008-06-04 17:54:26 nicm Exp $ */
+/* $Id: tmux.h,v 1.130 2008-06-04 18:50:35 nicm Exp $ */
 
 /*
  * Copyright (c) 2007 Nicholas Marriott <nicm@users.sourceforge.net>
@@ -919,6 +919,8 @@ void	 input_parse(struct window *);
 void	 input_key(struct window *, int);
 
 /* screen-display.c */
+void	 screen_display_get_cell(
+    	     struct screen *, u_int, u_int, u_char *, u_char *, u_char *);
 void	 screen_display_set_cell(
     	     struct screen *, u_int, u_int, u_char, u_char, u_char);
 void	 screen_display_make_lines(struct screen *, u_int, u_int);
@@ -946,7 +948,7 @@ void	 screen_write_start(struct screen_write_ctx *,
     	    struct screen *, void (*)(void *, int, ...), void *);
 void	 screen_write_stop(struct screen_write_ctx *);
 void	 screen_write_set_title(struct screen_write_ctx *, char *);
-void	 screen_write_put_character(struct screen_write_ctx *, u_char);
+int	 screen_write_put_character(struct screen_write_ctx *, u_char);
 size_t printflike2 screen_write_put_string_rjust(
 	     struct screen_write_ctx *, const char *, ...);
 void printflike2 screen_write_put_string(

window-copy.c

@@ -1,4 +1,4 @@
-/* $Id: window-copy.c,v 1.16 2008-06-03 21:42:37 nicm Exp $ */
+/* $Id: window-copy.c,v 1.17 2008-06-04 18:50:35 nicm Exp $ */
 
 /*
  * Copyright (c) 2007 Nicholas Marriott <nicm@users.sourceforge.net>
@@ -184,9 +184,11 @@ window_copy_key(struct window *w, int key)
 		window_copy_copy_selection(w);
 		window_reset_mode(w);
 		break;
+	case '0':
 	case '\001':	/* C-a */
 		window_copy_cursor_start_of_line(w);
 		break;
+	case '$':
 	case '\005':	/* C-e */
 		window_copy_cursor_end_of_line(w);
 		break;