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Improve readability (I think)

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git-svn-id: https://shorewall.svn.sourceforge.net/svnroot/shorewall/trunk@6928 fbd18981-670d-0410-9b5c-8dc0c1a9a2bb
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teastep 2007-07-21 20:00:34 +00:00
parent 01a7a480e1
commit c8cf4f6685
1 changed files with 6 additions and 1 deletions
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7
Shorewall-perl/Shorewall/Config.pm
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@ -875,7 +875,12 @@ sub read_a_line() {
#
# Expand Shell Variables using %ENV
#
while ( $currentline =~ /^(.*?)\$({)?([a-zA-Z]\w*)(?(2)}|)(.*)$/ ) {
while ( $currentline =~ m( ^(.*?)
\$({)?
([a-zA-Z]\w*)
(?(2)})
(.*)$)x
) {
my $val = $ENV{$3};
$val = '' unless defined $val;
$currentline = join( '', $1 , $val , $4 );