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P5reset - Implement Perl 5's reset() built-in
use P5reset; reset("a"); # reset all "our" variables starting with "a" reset("a-z"); # reset all "our" variables starting with lowercase letter reset; # does not reset any variables
This module tries to mimic the behaviour of the
reset function of Perl 5 as closely as possible.
reset EXPR reset 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. Only resets variables or searches in the current package. Always returns 1. Examples: reset 'X'; # reset all X variables reset 'a-z'; # reset lower case variables reset; # just reset ?one-time? searches 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".
Since Perl 6 doesn't have the concept of
?one time searches?, the no-argument form of
reset will not reset any variables at all.
Elizabeth Mattijsen [email protected]
Source can be located at: https://github.com/lizmat/P5reset . Comments and Pull Requests are welcome.
Copyright 2018 Elizabeth Mattijsen
Re-imagined from Perl 5 as part of the CPAN Butterfly Plan.
This library is free software; you can redistribute it and/or modify it under the Artistic License 2.0.