### Richard Smith wrote: ### "... but the previous value of $1 still seems to ### persist." ### ### ### Hi Richard, ### ### In RegEx, the variables $1, $2, $3 ... might carry on ### unwanted values from previous uses. ### How can we erase them? ### You can do this:
$_ = "anything"; m,(a),; print "\n(1.) \$1: ", $1; ## now $1 carries "a". ### You cannot erase the $1 variable in this way: # $1 = ""; ### Error message: " # Modification of a read-only value attempted." ### But you can erase the $1 and $2 and $3 ... variables in this way: $_ = "anything"; ### $1, $2, $3 do look for "nothing" and do find "nothing", thus ### $1, $2, $3 are erased: m,()()(),; print "\n(2.) \$1: ", $1; =Result: (1.) $1: a (2.) $1: ### Regards, Detlef
