Parsing Command Output

[iostream]

8/3/2009 5:38:17 PM

I am trying devise Perl regex to parse output with the following
format:
Example output:

CHANNEL(TO.IPTWX01) CHLTYPE(CLUSRCVR)
DISCINT(6000) SHORTRTY(10)
TRPTYPE(TCP) DESCR( )
LONGTMR(1200) SCYEXIT( )
CONNAME(NODE(1414)) MREXIT( )
MREXIT( ) CONNAME2(SOME(1416))
TPNAME( ) BATCHSZ(50)
MCANAME( ) MODENAME( )
ALTTIME(00.41.56) SSLPEER()
CONTRIVED() ATTR
(00-41-56)
CONTRIVED() DOCTORED()
MSGEXIT( )

Each line of output of interest contains one or more attribute/value
pairs with format: "ATTRIBUTE(VALUE)". The value
for an attribute can be empty, or can contain parenthesis itself.

I have the following Perl code to capture each attribute/value pair.

# Perl Code
my $resplit = qr/\s+([^\s]+(?:\([^)]*\))?)\s?/;
while ( <IN2> )
{ s/[\s\r\n]+$//;
if ( m/^\s(?:$resplit)(?:$resplit)?$/ )
{ my ($one,$two) = ($1,$2);
print "one: $one, two: $two\n";
}
}

Here's the output when the above code is applied to sample output:
one: CHANNEL(TO.IPTWX01), two: CHLTYPE(CLUSRCVR)
one: DISCINT(6000), two: SHORTRTY(10)
one: TRPTYPE(TCP), two: DESCR( )
one: LONGTMR(1200), two: SCYEXIT( )
one: CONNAME(NODE(1414)), two: MREXIT( )
one: MREXIT( ), two: CONNAME2(SOME(1416))
one: TPNAME( ), two: BATCHSZ(50)
one: MCANAME( ), two: MODENAME( )
one: ALTTIME(00.41.56), two: SSLPEER()
one: CONTRIVED(), two: ATTR(00-41-56)
one: CONTRIVED(), two: DOCTORED()
one: MSGEXIT(, two: )

This works great with the exception of the last line in the output
above. I'm really struggling to figure out how
to modify the above expression $resplit to capture the last case.

Can anyone offer any ideas/suggestions on how to make this work or
another approach?