regex - Perl pattern matching and use of \k -

regex - Perl pattern matching and use of \k -

i facing bit difficulty in using \k in regular expressions in perl. next lines need info after pipemed_tb array , skip part before can help that. if possible please tell how utilize \k in next lines.

set stimulustop pipemed_tb.pipemed1.gtmc1.gthevcpar91.vncunit1 set stimulustop pipemed_tb.pipemed1.gtmc1.gthevcpar91.vneunit1 set stimulustop vprunit_tb.vprunit1

you must confusing \k<n> back-reference , perl \k preceding match omitting operator. not need here.

here sample programme (part of redundant illustrative purposes):

my @vals = (); push(@vals, "set stimulustop pipemed_tb.pipemed1.gtmc1.gthevcpar91.vncunit1"); push(@vals, "set stimulustop pipemed_tb.pipemed1.gtmc1.gthevcpar91.vneunit1"); push(@vals, "set stimulustop vprunit_tb.vprunit1"); foreach $i (@vals) { $i =~ s/set stimulustop //g; print $i."\n"; }

output:

pipemed_tb.pipemed1.gtmc1.gthevcpar91.vncunit1 pipemed_tb.pipemed1.gtmc1.gthevcpar91.vneunit1 vprunit_tb.vprunit1

regex perl