The problem seems to be stated: either $val or <val>:
$ perl -le'$_=pop;/([\$@*%]|(<))(.*)(?(2)>)/;print"($1)($3)"' '$xyz'
($)(xyz)
$ perl -le'$_=pop;/([\$@*%]|(<))(.*)(?(2)>)/;print"($1)($3)"' '$xyz>'
($)(xyz>)
$ perl -le'$_=pop;/([\$@*%]|(<))(.*)(?(2)>)/;print"($1)($3)"' '<xyz>'
(<)(xyz)

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  p

In reply to Re: Re: Re: Re: Re: Re: conditional match in regex by petral
in thread conditional match in regex by John M. Dlugosz

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