Virgin import of less v415.

1 files changed, 32 insertions, 11 deletions

diff --git a/contrib/less/command.c b/contrib/less/command.c
index ff48909f8ca8..ef6dfa464e8c 100644
--- a/contrib/less/command.c
+++ b/contrib/less/command.c
@@ -552,6 +552,21 @@ mca_char(c)
 }
 
 /*
+ * Discard any buffered file data.
+ */
+	static void
+clear_buffers()
+{
+	if (!(ch_getflags() & CH_CANSEEK))
+		return;
+	ch_flush();
+	clr_linenum();
+#if HILITE_SEARCH
+	clr_hilite();
+#endif
+}
+
+/*
  * Make sure the screen is displayed.
  */
 	static void
@@ -574,11 +589,20 @@ make_display()
 			jump_loc(initial_scrpos.pos, initial_scrpos.ln);
 	} else if (screen_trashed)
 	{
-		int save_top_scroll;
-		save_top_scroll = top_scroll;
+		int save_top_scroll = top_scroll;
+		int save_ignore_eoi = ignore_eoi;
 		top_scroll = 1;
+		ignore_eoi = 0;
+		if (screen_trashed == 2)
+		{
+			/* Special case used by ignore_eoi: re-open the input file
+			 * and jump to the end of the file. */
+			reopen_curr_ifile();
+			jump_forw();
+		}
 		repaint();
 		top_scroll = save_top_scroll;
+		ignore_eoi = save_ignore_eoi;
 	}
 }
 
@@ -1109,7 +1133,10 @@ commands()
 			ignore_eoi = 1;
 			hit_eof = 0;
 			while (!sigs)
+			{
+				make_display();
 				forward(1, 0, 0);
+			}
 			ignore_eoi = 0;
 			/*
 			 * This gets us back in "F mode" after processing 
@@ -1148,14 +1175,7 @@ commands()
 			 * Flush buffers, then repaint screen.
 			 * Don't flush the buffers on a pipe!
 			 */
-			if (ch_getflags() & CH_CANSEEK)
-			{
-				ch_flush();
-				clr_linenum();
-#if HILITE_SEARCH
-				clr_hilite();
-#endif
-			}
+			clear_buffers();
 			/* FALLTHRU */
 		case A_REPAINT:
 			/*
@@ -1257,7 +1277,8 @@ commands()
 /*
  * Define abbreviation for a commonly used sequence below.
  */
-#define	DO_SEARCH()	if (number <= 0) number = 1;	\
+#define	DO_SEARCH() \
+			if (number <= 0) number = 1;	\
 			mca_search();			\
 			cmd_exec();			\
 			multi_search((char *)NULL, (int) number);