last_non_null — return last non-null entry from an input consisting of null-separated fields
The filter splits the input on a null character (\0
)
and returns the last non-null entry.
Example: Filter example
[perl] $Tag->filter({ op => 'last_non_null', body => "One\0Two\0Three\0\0\0" }); [/perl]Example in action:
Interchange 5.9.0:
Source: code/Filter/last_non_null.filter
Lines: 21
# Copyright 2002-2007 Interchange Development Group and others # Copyright 1996-2002 Red Hat, Inc. # # This program is free software; you can redistribute it and/or modify # it under the terms of the GNU General Public License as published by # the Free Software Foundation; either version 2 of the License, or # (at your option) any later version. See the LICENSE file for details. # # $Id: last_non_null.filter,v 1.4 2007-03-30 23:40:44 pajamian Exp $ CodeDef last_non_null Filter CodeDef last_non_null Description Reverse combo CodeDef last_non_null Routine <<EOR sub { my @some = reverse split /\0+/, shift; for(@some) { return $_ if length $_; } return ''; } EOR