File less-406-save_line_position.patch of Package less

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File less-406-save_line_position.patch of Package less (Revision f2ad219c5728ef6fa2576170e5dc6b2c)

Currently displaying revision f2ad219c5728ef6fa2576170e5dc6b2c , Show latest

--- line.c
+++ line.c
@@ -68,6 +68,25 @@
 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.
  */
@@ -620,7 +639,11 @@
 		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.
 		 */
@@ -952,7 +975,11 @@
 		{
 			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;
 
@@ -1038,9 +1065,12 @@
 	 * that blank line would be ignored!)
 	 */
 	if (!oldbot)
-		nl = (column < sc_width || !auto_wrap || (endline && ignaw) || ctldisp == OPT_ON);
+		nl = (column < sc_width || !auto_wrap || (endline && ignaw));
 	else
-		nl = (column < sc_width || !auto_wrap || ignaw || ctldisp == OPT_ON);
+		nl = (column < sc_width || !auto_wrap || ignaw);
+#if THROW_AWAY_LOCATION
+	nl = nl || ctldisp == OPT_ON;
+#endif
 	if (nl)
 	{
 		linebuf[curr] = '\n';

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File less-406-save_line_position.patch of Package less (Revision f2ad219c5728ef6fa2576170e5dc6b2c)

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