gate — return input verbatim if the specified Scratch variable exists, empty string otherwise
The filter allows "conditional output" of the input string, based on the value of a scratch variable.
In other words, received input is passed through verbatim, if the specified scratch variable holds a true value. Empty string is returned otherwise.
Interchange 5.9.0:
Source: code/Filter/gate.filter
Lines: 19
# 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: gate.filter,v 1.4 2007-03-30 23:40:44 pajamian Exp $ CodeDef gate Filter CodeDef gate Description Gate with scratch CodeDef gate Routine <<EOR sub { my ($val, $var) = @_; return '' unless $::Scratch->{$var}; return $val; } EOR