Provided by: libdata-printer-perl_1.000004-1_all
NAME
Data::Printer::Filter::Digest - pretty-printing MD5, SHA and many other digests
SYNOPSIS
In your ".dataprinter" file: filters = Digest You may also setup the look and feel with the following options: filter_digest.show_class_name = 0 filter_digest.show_reset = 1 # you can even customize your themes: colors.digest = #27ac3c That's it!
DESCRIPTION
This is a filter plugin for Data::Printer. It filters through several message digest objects and displays their current value in hexadecimal format as a string. Parsed Modules Any module that inherits from Digest::base. The following ones are actively supported: · Digest::Adler32 · Digest::MD2 · Digest::MD4 · Digest::MD5 · Digest::SHA · Digest::SHA1 · Digest::Whirlpool If you have any suggestions for more modules or better output, please let us know. Extra Options Aside from the display color, there are a few other options to be customized via the "filter_digest" option key: show_class_name If set to true (the default) the class name will be displayed right next to the hexadecimal digest. show_reset If set to true (the default), the filter will add a "[reset]" tag after dumping an empty digest object. See the rationale below. Note on dumping Digest::* objects The digest operation is effectively a destructive, read-once operation. Once it has been performed, most Digest::* objects are automatically reset and can be used to calculate another digest value. This behaviour - or, rather, forgetting about this behaviour - is a common source of issues when working with Digests. This Data::Printer filter will not destroy your object. Instead, we work on a cloned version to display the hexdigest, leaving your original object untouched. As another debugging convenience for developers, since the empty object will produce a digest even after being used, this filter adds by default a "[reset]" tag to indicate that the object is empty, in a 'reset' state - i.e. its hexdigest is the same as the hexdigest of a new, empty object of that same class.
SEE ALSO
Data::Printer