Filter::Util::Exec - exec source filter
This module is provides the interface to allow the creation of Source
which use a Unix coprocess.
See Filter::exec, Filter::cpp and Filter::sh for examples of the use of this
Note that the size of the buffers is limited to 32-bit.
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
, the reference can be used to store context information.
The reference will be blessed
into the package by
See Filter::Util::Call for examples of using context information using both
and closure filters
11th December 1995.