Generally used in a continue
block at the end of a loop to clear
variables and reset ??
searches so that they work again. The
expression is interpreted as a list of single characters (hyphens
allowed for ranges). All variables and arrays beginning with one of
those letters are reset to their pristine state. If the expression is
omitted, one-match searches (?pattern?
) are reset to match again. Resets
only variables or searches in the current package. Always returns
1. Examples:
Resetting "A-Z"
is not recommended because you'll wipe out your
@ARGV
and @INC
arrays and your %ENV
hash. Resets only package
variables--lexical variables are unaffected, but they clean themselves
up on scope exit anyway, so you'll probably want to use them instead.
See my.