NAME Hash::Util::Regexp - Hash utility routines related to regular expression VERSION This document describes version 0.001 of Hash::Util::Regexp (from Perl distribution Hash-Util-Regexp), released on 2022-07-25. DESCRIPTION FUNCTIONS All the functions are exportable but not exported by default. has_key_matching Usage: my $bool = has_key_matching(\%hash, qr/some_regex/); This is a shortcut/alias for something like: my $bool = any { /some_regex/ } keys %hash; first_key_matching Usage: my $key = first_key_matching(\%hash, qr/some_regex/ [ , $sort ]); This is a shortcut/alias for something like: my $key = first { /some_regex/ } keys %hash; The optional $sort argument can be set to true (e.g. 1) or a coderef to sort the keys first. keys_matching Usage: my @keys = keys_matching(\%hash, qr/some_regex/ [ , $sort ]); This is a shortcut/alias for something like: my @keys = grep { /some_regex/ } keys %hash; The optional $sort argument can be set to true (e.g. 1) or a coderef to sort the keys first. has_key_not_matching The counterpart for "has_key_matching". first_key_not_matching The counterpart for "first_key_matching". keys_not_matching The counterpart for "keys_matching". HOMEPAGE Please visit the project's homepage at . SOURCE Source repository is at . SEE ALSO AUTHOR perlancar CONTRIBUTING To contribute, you can send patches by email/via RT, or send pull requests on GitHub. Most of the time, you don't need to build the distribution yourself. You can simply modify the code, then test via: % prove -l If you want to build the distribution (e.g. to try to install it locally on your system), you can install Dist::Zilla, Dist::Zilla::PluginBundle::Author::PERLANCAR, and sometimes one or two other Dist::Zilla plugin and/or Pod::Weaver::Plugin. Any additional steps required beyond that are considered a bug and can be reported to me. COPYRIGHT AND LICENSE This software is copyright (c) 2022 by perlancar . This is free software; you can redistribute it and/or modify it under the same terms as the Perl 5 programming language system itself. BUGS Please report any bugs or feature requests on the bugtracker website When submitting a bug or request, please include a test-file or a patch to an existing test-file that illustrates the bug or desired feature.