VERSIONThis document describes version 4.13 of Dist::Zilla::Role::HashDumper, released August 29, 2015 as part of Dist-Zilla-Plugins-CJM version 4.27.
DESCRIPTIONPlugins implementing HashDumper may call their own "extract_keys" method to extract selected keys from a hash and return a string suitable for injecting into Perl code. They may also call the "hash_as_string" method to do the same for an entire hash.
my $string = $plugin->extract_keys($name, \%hash, @keys); eval "%new_hash = ($string);";
This combines "extract_keys_as_hash" and "hash_as_string". It constructs a string of properly quoted keys and values from selected keys in a hash. (Note that "\%hash" is a reference, but @keys is not.) The $name is used only in a log_debug message.
If any key has no value (or its value is an empty hash or array ref) it will be omitted from the list. If all keys are omitted, the empty string is returned. Otherwise, the result always ends with a comma.
my $hashref = $plugin->extract_keys_as_hash($name, \%hash, @keys);
This constructs a hashref from from selected keys in a hash. (Note that "\%hash" is a reference, but @keys is not.) The $name is used only in a log_debug message.
If any key has no value (or its value is an empty hash or array ref) it will be omitted from the new hashref. If all keys are omitted, an empty hashref is returned.
my $string = $plugin->hash_as_string(\%hash); eval "%new_hash = ($string);";
This constructs a string of properly quoted keys and values from a hash. If the hash is empty, the empty string will be returned. Otherwise, the result always ends with a comma.
CONFIGURATION AND ENVIRONMENTDist::Zilla::Role::HashDumper requires no configuration files or environment variables.
BUGS AND LIMITATIONSNo bugs have been reported.
AUTHORChristopher J. Madsen "<perl AT cjmweb.net>"
Please report any bugs or feature requests to "<bug-Dist-Zilla-Plugins-CJM AT rt.cpan.org>" or through the web interface at <http://rt.cpan.org/Public/Bug/Report.html?Queue=Dist-Zilla-Plugins-CJM>.
You can follow or contribute to Dist-Zilla-Plugins-CJM's development at <https://github.com/madsen/dist-zilla-plugins-cjm>.
COPYRIGHT AND LICENSEThis software is copyright (c) 2015 by Christopher J. Madsen.
This is free software; you can redistribute it and/or modify it under the same terms as the Perl 5 programming language system itself.
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