Exec(3) User Contributed Perl Documentation Exec(3) NAME Filter::Util::Exec - exec source filter SYNOPSIS use Filter::Util::Exec; DESCRIPTION This module is provides the interface to allow the creation of Source Filters which use a Unix coprocess. See Filter::exec, Filter::cpp and Filter::sh for examples of the use of this module. filter_add() The function, "filter_add" installs a filter. It takes one parameter which should be a reference. The kind of reference used will dictate which of the two filter types will be used. If a CODE reference is used then a closure filter will be assumed. If a CODE reference is not used, a method filter will be assumed. In a method filter, the reference can be used to store context information. The reference will be blessed into the package by "filter_add". See Filter::Util::Call for examples of using context information using both method filters and closure filters. AUTHOR Paul Marquess DATE 11th December 1995. perl v5.16.3 2013-04-02 Exec(3)
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