Import version 458 of "less". Changes since version 444:

* Allow backslash escaping of metacharacters in LESS environment variable
  after the --use-backslash option.
* Don't quit if syntax errors are found in command line options.
* Increase sizes of some internal buffers.
* Fix configure bug with --with-regex=none.
* Fix crash with "stty rows 0".
* Fix display bug when using up/down arrow on the command line.
* Add ESC-F command to keep reading data until a pattern is found.
* Use exit code of LESSOPEN script if LESSOPEN starts with "||".
* When up/down arrow is used on the command line immediately after
  typing text, the next command starting with that text is found.
* Add support for GNU regex.
* Add configure option --with-regex=none and fix compile errors
  when compiling with no regex library.
* Fix possible crashes caused by malformed LESSOPEN or
  LESSCLOSE variables.
* Fix bug highlighting text which is discontiguous in the file
  due to backspace processing.
* Fix bug in displaying status column when scrolling backwards
  with -J and -S in effect.

external/bsd/less/dist/LICENSE

@@ -2,7 +2,7 @@
                           ------------
 
 Less
-Copyright (C) 1984-2011  Mark Nudelman
+Copyright (C) 1984-2012  Mark Nudelman
 
 Redistribution and use in source and binary forms, with or without
 modification, are permitted provided that the following conditions

external/bsd/less/dist/Makefile.aut

@@ -1,6 +1,6 @@
 # Makefile for authoring less.
 
-EMAIL = markn@greenwoodsoftware.com
+EMAIL = bug-less@gnu.org
 HOMEPAGE = http://www.greenwoodsoftware.com/less
 SHELL = /bin/sh
 RCS = rcs
@@ -112,8 +112,7 @@ dist: ${DISTFILES}
 	echo "Preparing $$REL"; \
 	rm -rf $$REL; mkdir $$REL; \
 	for file in ${DISTFILES}; do \
-	  cp -p $$file $$REL; \
-	  chmod -w $$REL/$$file; \
+	  ./add_copyright $$file $$REL; \
 	done; \
 	cd $$REL; chmod +w ${DISTFILES_W}; cd ..; \
 	echo "Creating release/$$REL/$$REL.tar.gz"; \

external/bsd/less/dist/NEWS

@@ -7,8 +7,53 @@
       http://www.greenwoodsoftware.com/less
   You can also download the latest version of less from there.
 
-  To report bugs, suggestions or comments, send email to 
-  bug-less@gnu.org or markn@greenwoodsoftware.com.
+  To report bugs, suggestions or comments, send email to bug-less@gnu.org.
+
+======================================================================
+
+	Major changes between "less" versions 451 and 458
+
+* Allow backslash escaping of metacharacters in LESS environment variable
+  after the --use-backslash option.
+
+* Don't quit if syntax errors are found in command line options.
+
+* Increase sizes of some internal buffers.
+
+* Fix configure bug with --with-regex=none.
+
+* Fix crash with "stty rows 0".
+
+* Fix Win32 attribute display bug.
+
+* Fix display bug when using up/down arrow on the command line.
+
+======================================================================
+
+	Major changes between "less" versions 444 and 451
+
+* Add ESC-F command to keep reading data until a pattern is found.
+
+* Use exit code of LESSOPEN script if LESSOPEN starts with "||".
+
+* When up/down arrow is used on the command line immediately after
+  typing text, the next command starting with that text is found.
+
+* Add support for GNU regex.
+
+* Add configure option --with-regex=none and fix compile errors
+  when compiling with no regex library.
+
+* Fix bugs handling SGR sequences in Win32.
+
+* Fix possible crashes caused by malformed LESSOPEN or 
+  LESSCLOSE variables.
+
+* Fix bug highlighting text which is discontiguous in the file 
+  due to backspace processing.
+
+* Fix bug in displaying status column when scrolling backwards 
+  with -J and -S in effect.
 
 ======================================================================
 

external/bsd/less/dist/README

@@ -1,7 +1,7 @@
 
-                            Less, version 444
+                            Less, version 458
 
-    This is the distribution of less, version 444, released 09 Jun 2011.
+    This is the distribution of less, version 458, released 04 Apr 2013.
     This program is part of the GNU project (http://www.gnu.org).
 
     This program is free software.  You may redistribute it and/or
@@ -13,7 +13,7 @@
     or
     2. The Less License, in the file LICENSE.
 
-    Please report any problems to bug-less@gnu.org or markn@greenwoodsoftware.com.
+    Please report any problems to bug-less@gnu.org.
     See http://www.greenwoodsoftware.com/less for the latest info.
 
 =========================================================================
@@ -52,10 +52,11 @@ INSTALLATION (Unix systems only):
         regcomp        Use the V8-compatible regcomp.
         regcomp-local  Use Henry Spencer's V8-compatible regcomp
                        (source is supplied with less).
+        none           No regular expressions, only simple string matching.
    --with-secure
      Builds a "secure" version of less, with some features disabled
-	 to prevent users from viewing other files, accessing shell
-	 commands, etc.
+     to prevent users from viewing other files, accessing shell
+     commands, etc.
 
 
 3. It is a good idea to look over the generated Makefile and defines.h
@@ -88,7 +89,7 @@ INSTALLATION (Unix systems only):
    bindir and/or mandir to the appropriate directories.
 
 If you have any problems building or running "less", suggestions, 
-complaints, etc., you may mail to the author at markn@greenwoodsoftware.com.
+complaints, etc., you may mail to bug-less@gnu.org.
 
 Note to hackers: comments noting possible improvements are enclosed
 in double curly brackets {{ like this }}.

external/bsd/less/dist/brac.c

@@ -1,13 +1,12 @@
-/*	$NetBSD	*/
+/*	$NetBSD: brac.c,v 1.1.1.2 2013/09/04 19:35:03 tron Exp $	*/
 
 /*
- * Copyright (C) 1984-2011  Mark Nudelman
+ * Copyright (C) 1984-2012  Mark Nudelman
  *
  * You may distribute under the terms of either the GNU General Public
  * License or the Less License, as specified in the README file.
  *
- * For more information about less, or for information on how to 
- * contact the author, see the README file.
+ * For more information, see the README file.
  */
 
 

external/bsd/less/dist/ch.c

@@ -1,13 +1,12 @@
-/*	$NetBSD	*/
+/*	$NetBSD: ch.c,v 1.1.1.2 2013/09/04 19:35:03 tron Exp $	*/
 
 /*
- * Copyright (C) 1984-2011  Mark Nudelman
+ * Copyright (C) 1984-2012  Mark Nudelman
  *
  * You may distribute under the terms of either the GNU General Public
  * License or the Less License, as specified in the README file.
  *
- * For more information about less, or for information on how to 
- * contact the author, see the README file.
+ * For more information, see the README file.
  */
 
 
@@ -584,6 +583,8 @@ ch_length()
 		return (NULL_POSITION);
 	if (ch_flags & CH_HELPFILE)
 		return (size_helpdata);
+	if (ch_flags & CH_NODATA)
+		return (0);
 	return (ch_fsize);
 }
 
@@ -807,6 +808,17 @@ seekable(f)
 	return (lseek(f, (off_t)1, SEEK_SET) != BAD_LSEEK);
 }
 
+/*
+ * Force EOF to be at the current read position.
+ * This is used after an ignore_eof read, during which the EOF may change.
+ */
+	public void
+ch_set_eof()
+{
+	ch_fsize = ch_fpos;
+}
+
+
 /*
  * Initialize file state for a new file.
  */

external/bsd/less/dist/charset.c

@@ -1,13 +1,12 @@
-/*	$NetBSD	*/
+/*	$NetBSD: charset.c,v 1.1.1.2 2013/09/04 19:35:03 tron Exp $	*/
 
 /*
- * Copyright (C) 1984-2011  Mark Nudelman
+ * Copyright (C) 1984-2012  Mark Nudelman
  *
  * You may distribute under the terms of either the GNU General Public
  * License or the Less License, as specified in the README file.
  *
- * For more information about less, or for information on how to 
- * contact the author, see the README file.
+ * For more information, see the README file.
  */
 
 

external/bsd/less/dist/charset.h

@@ -1,13 +1,12 @@
-/*	$NetBSD	*/
+/*	$NetBSD: charset.h,v 1.1.1.2 2013/09/04 19:35:03 tron Exp $	*/
 
 /*
- * Copyright (C) 2005-2011  Mark Nudelman
+ * Copyright (C) 1984-2012  Mark Nudelman
  *
  * You may distribute under the terms of either the GNU General Public
  * License or the Less License, as specified in the README file.
  *
- * For more information about less, or for information on how to 
- * contact the author, see the README file.
+ * For more information, see the README file.
  */
 
 #define IS_ASCII_OCTET(c)   (((c) & 0x80) == 0)

external/bsd/less/dist/cmd.h

@@ -1,17 +1,16 @@
-/*	$NetBSD	*/
+/*	$NetBSD: cmd.h,v 1.1.1.2 2013/09/04 19:35:03 tron Exp $	*/
 
 /*
- * Copyright (C) 1984-2011  Mark Nudelman
+ * Copyright (C) 1984-2012  Mark Nudelman
  *
  * You may distribute under the terms of either the GNU General Public
  * License or the Less License, as specified in the README file.
  *
- * For more information about less, or for information on how to 
- * contact the author, see the README file.
+ * For more information, see the README file.
  */
 
 
-#define	MAX_USERCMD		500
+#define	MAX_USERCMD		1000
 #define	MAX_CMDLEN		16
 
 #define	A_B_LINE		2
@@ -68,6 +67,7 @@
 #define	A_NEXT_TAG		53
 #define	A_PREV_TAG		54
 #define	A_FILTER		55
+#define	A_F_UNTIL_HILITE	56
 
 #define	A_INVALID		100
 #define	A_NOACTION		101
@@ -80,7 +80,7 @@
 #define	A_EXTRA			0200
 
 
-/* Line editting characters */
+/* Line editing characters */
 
 #define	EC_BACKSPACE	1
 #define	EC_LINEKILL	2