freebsd-ports/devel/tcl-trf/pkg-descr
Mikhail Teterin daa8cb06f0 From the software's self-description:
Trf is a TCL extension library. It extends the language
	at the C-level with so-called ``transformer''-procedures.
	The package is able to intercept all read/write operations
	on designated channels, thus giving it the ability to
	transform the buffer contents as desired. This allows
	things like transparent encryption, compression, charset
	recoding, etc. Build upon this framework (and as proof of
	concept) a collection of tcl-level commands was implemented,
	most of them related to cryptography.

WWW: http://www.oche.de/~akupries/soft/trf/
2002-02-15 07:34:07 +00:00

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This is a loadable extension to Tcl providing commands for data
conversion, message digests, zlib based compression, error-correction,
channel-based manipulation of binary data. Trf extends the language at
the C-level with so-called ``transformer''-procedures. With the help of
some patches (*) to the core the package is able to intercept all
read/write operations on designated channels, thus giving it the ability
to transform the buffer contents as desired. This allows things like
transparent encryption, compression, charset recoding, etc. Build upon
this framework (and as proof of concept) a collection of tcl-level
commands was implemented.
WWW: http://www.oche.de/~akupries/soft/trf/