Added script to search for unnecessary newlines

Script recursively searches directorys for
consecutive "empty line(s) - code line" groups

bin/doubleNewlines.pl

+#!/usr/bin/perl
+################################################################################
+# Version: MPL 1.1 / GPLv3+ / LGPLv3+
+#
+# The contents of this file are subject to the Mozilla Public License Version
+# 1.1 (the "License"); you may not use this file except in compliance with
+# the License or as specified alternatively below. You may obtain a copy of
+# the License at http://www.mozilla.org/MPL/
+#
+# Software distributed under the License is distributed on an "AS IS" basis,
+# WITHOUT WARRANTY OF ANY KIND, either express or implied. See the License
+# for the specific language governing rights and limitations under the
+# License.
+#
+# The Initial Developer of the Original Code is
+#       Michael Koch <miko@gmx.ch>
+#
+# Major Contributor(s):
+#       <name>
+#
+# For minor contributions see the git repository.
+#
+# Alternatively, the contents of this file may be used under the terms of
+# either the GNU General Public License Version 3 or later (the "GPLv3+"), or
+# the GNU Lesser General Public License Version 3 or later (the "LGPLv3+"),
+# in which case the provisions of the GPLv3+ or the LGPLv3+ are applicable
+# instead of those above.
+################################################################################
+# Usage: "Usage: doubleNewlines.pl <directory>"
+#        It is possible to enter more than one directory separated by spaces.
+#        Instead of a directory you can also use one or more files as arguments.
+################################################################################
+
+use strict;
+use warnings;
+
+use File::Find;
+use Cwd 'abs_path';
+
+my $total = 0;
+
+die "Usage: doubleNewlines.pl <directory>\n" unless (@ARGV);
+
+# if path is relative, make it absolute
+foreach (@ARGV){
+    $_ = abs_path($_);
+}
+
+print "Following code files (.hxx and .cxx) are suspicious:\n";
+find(\&processFile, @ARGV);     # processes all files in dir and subdirs
+print "Found $total suspicious files.\n";
+
+sub processFile {
+    my $file = $File::Find::name;
+    return unless $file =~ /(.cxx$)|(.hxx$)/;
+    open FILE, $file or die "Can't open '$file': $!";
+    my $lines = join '', <FILE>;
+    if ($lines =~ /(\n{2,}.+){10}/) {    # ten consecutive occurrences of [empty line(s) - code line)]
+        my $relPath = substr($file, index($file, "clone")+6);   # relative path beginning with repo name
+        print "$relPath\n";
+        $total++;
+    }
+}