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Begin3
Title: trf
Version: 2.1.4
Entered-date: MAY-06-2009
Description: 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. Additionally some binary data support is put
in as well. A separate package containing encryption transformation is
available at the same site carrying this package. (*) The patches are
only necessary for Tcl 8.0.x and 8.1.x. Since Tcl 8.2 the Trf patch is
an official part of the core.
Keywords: tcl, conversion, message digests, data compression,
error-correction, binary io, crc, md2, md5, sha, sha-1, haval, adler,
ripemd-160, dual, hexadecimal, octal, uuencode, base64, ascii85,
reed-solomon, zlib, otp_md5, otp_sha1, otp_words
Author: Andreas Kupries (andreas_kupries@users.sourceforge.net)
Maintained-by: Andreas Kupries (andreas_kupries@users.sourceforge.net)
Platforms: tcl 8.0 or higher, plus-patches as of Dec 5, 1996 or
later (optional), memchan 1.0 or higher (required by testsuite),
zlib-1.0.4 or higher (optional, 1.2.4 is current),
Copying-policy: BSD-Style, see 'tcl'-license
End
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