X-Git-Url: http://git.shiar.nl/perl/file-rewrite.git/blobdiff_plain/d72f22ff8c2dd2d763a83aeb19eeca6c2162cacc..95dfe50f34f7a41b5660288e9160717c59c38c86:/lib/File/Rewrite.pm

diff --git a/lib/File/Rewrite.pm b/lib/File/Rewrite.pm
index 2b05ded..7319259 100644
--- a/lib/File/Rewrite.pm
+++ b/lib/File/Rewrite.pm
@@ -6,24 +6,26 @@ use warnings;
 use autodie ':all';
 use Exporter 'import';
 
+our $VERSION = '1.00';
 our @EXPORT_OK = qw(fileset);
 
 sub fileset {
-	my ($filename, $replace, $search) = @_;
+	my ($filename, $search, $replace) = @_;
 	my $tmpname = "$filename.$$.tmp";
 	my $changes = 0;
 
-	$search = $replace if not defined $search;
+	$replace = $search if @_ < 3;
 
 	# generate a single regex to emulate smart match
 	$search = [$search] unless ref $search eq 'ARRAY';
-	$search = join('|', map { ref $_ ? $_ : "^\Q$_\E\$" } @$search);
+	@$search = grep { defined } @$search;
+	$search = @$search ? join('|', map { ref $_ ? $_ : "^\Q$_\E\$" } @$search) : undef;
 
 	open my $src,  '<', $filename;
 	open my $dest, '>', $tmpname;
 	while (readline $src) {
 		chomp;
-		if ($_ =~ /$search/s) {
+		if (defined $search and $_ =~ /$search/s) {
 			if (ref $replace eq 'ARRAY') {
 				if (@$replace and $_ eq $replace->[0]) {
 					shift @$replace;
@@ -65,12 +67,12 @@ sub fileset {
 
 =head1 NAME
 
-File::Rewrite
+File::Rewrite - Append and/or strip lines from text files
 
 =head1 SYNOPSIS
 
 	use File::Rewrite 'fileset';
-	fileset('/tmp/somefile', undef, qr/match/);
+	fileset('/tmp/somefile', qr/match/ => undef);
 
 =head1 DESCRIPTION