NAME

Catmandu::Fix::cmd - pipe data to be fixed through an external process

VERSION

Version 0.0201

DESCRIPTION

This fix passes data as a JSON object to an external process over stdin and reads a JSON object from it's stdout.

SYNOPSIS

my $fixer = Catmandu::Fix->new(fixes => [
# pipe data through the jq command-line json processor
# keeping only the title field
'cmd("jq -c -M {title}")',
# ...
]);
# a canonical external program in perl
use JSON;
while (<STDIN>) {
my $data = decode_json($_);
# ...
print encode_json($data);
}

SEE ALSO

Catmandu::Fix

AUTHOR

Nicolas Steenlant, <nicolas.steenlant at ugent.be>

LICENSE AND COPYRIGHT

This program is free software; you can redistribute it and/or modify it under the terms of either: the GNU General Public License as published by the Free Software Foundation; or the Artistic License.

See http://dev.perl.org/licenses/ for more information.