From a888bfab4a7685b300dbf8da06069dd3d2d75bf0 Mon Sep 17 00:00:00 2001
From: Zygo Blaxell <zblaxell@esightcorp.com>
Date: Thu, 13 May 2010 16:40:49 -0400
Subject: [PATCH] parameterize the prefix length and ensure we don't have files
 with names too short

---
 dm6 | 7 +++++--
 1 file changed, 5 insertions(+), 2 deletions(-)

diff --git a/dm6 b/dm6
index a5d56a6..b0ff96b 100755
--- a/dm6
+++ b/dm6
@@ -69,10 +69,13 @@ sub link_files {
 my $link_dir = shift @ARGV;
 (-d $link_dir) or usage;
 
+my $prefix_length = 3;
+
 sub slash_prefix {
 	my ($file) = @_;
-	my $prefix = substr($file, 0, 3);
-	my $suffix = substr($file, 3);
+	$file .= '_' x (length($file) + 1 - $prefix_length) if length($file) + 1 < $prefix_length;
+	my $prefix = substr($file, 0, $prefix_length);
+	my $suffix = substr($file, $prefix_length);
 	$prefix =~ s:(.):$1/:osg;
 	chop($prefix);
 	return ($prefix, $suffix);
-- 
2.30.2