File less-429-save_line_position.patch of Package less.21236

---
 line.c |   31 +++++++++++++++++++++++++++++--
 1 file changed, 29 insertions(+), 2 deletions(-)

Index: line.c
===================================================================
--- line.c.orig	2009-06-30 21:27:09.000000000 +0200
+++ line.c	2009-07-07 15:39:00.000000000 +0200
@@ -66,6 +66,25 @@ static int mbc_buf_len = 0;
 static int mbc_buf_index = 0;
 static POSITION mbc_pos;
 
+
+
+/* Following define alters the "-r" switch to not throw
+ * away location information, but keep location as well
+ * as "possible" (currently only interpreting location escape
+ * sequences
+ *
+ * This benefits the user who may be operating with "-r" but
+ * is still displaying predominantly "normal" spacing characters
+ * (especially single, 8-bit characters that print "normally"
+ * but might otherwise be "undisplayable" in non "-r" mode.
+ *
+ * This is especially true using extended European characters
+ * that might be present in UTF-8 docs (among others);
+ * 					- lawless@tlinx.org
+ */
+#define THROW_AWAY_LOCATION 0
+
+
 /*
  * Initialize from environment variables.
  */
@@ -617,7 +636,11 @@ store_char(ch, a, rep, pos)
 		w = pwidth(ch, a, prev_ch);
 	}
 
-	if (ctldisp != OPT_ON && column + w + attr_ewidth(a) > sc_width)
+	if (
+#if THROW_AWAY_LOCATION
+			ctldisp != OPT_ON &&
+#endif
+			column + w + attr_ewidth(a) > sc_width)
 		/*
 		 * Won't fit on screen.
 		 */
@@ -949,7 +972,11 @@ do_append(ch, rep, pos)
 		{
 			STORE_PRCHAR((char) ch, pos);
 		}
-	} else if (utf_mode && ctldisp != OPT_ON && is_ubin_char(ch))
+	} else if (utf_mode &&
+#if THROW_AWAY_LOCATION
+			ctldisp != OPT_ON &&
+#endif
+			is_ubin_char(ch))
 	{
 		char *s;