NAME

Data::Transfigure::HashFilter::Undef - filters out undefined hash values whose keys match a pattern

DESCRIPTION

Data::Transfigure::HashFilter::Undef removes the key and corresponding value from the hash in cases where the value is undefined and the key matches a given regular expression. Matching keys can also be rewritten at the same time.

FIELDS

key_pattern (optional param)

A compiled regular expression (qr/.../) identifying keys that this transfigurator can apply to. If a capture group is included in the regex, the key is rewritten to its content (additional capture groups are ignored).

Default: qr/(.*)\?/

AUTHOR

Mark Tyrrell <mark@tyrrminal.dev>

LICENSE

Copyright (c) 2024 Mark Tyrrell

Permission is hereby granted, free of charge, to any person obtaining a copy of this software and associated documentation files (the "Software"), to deal in the Software without restriction, including without limitation the rights to use, copy, modify, merge, publish, distribute, sublicense, and/or sell copies of the Software, and to permit persons to whom the Software is furnished to do so, subject to the following conditions:

The above copyright notice and this permission notice shall be included in all copies or substantial portions of the Software.

THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.