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# -*- tcl -*-
extension trf {
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)}
maintenance {Andreas Kupries (andreas_kupries@users.sourceforge.net)}
version 2.1.4
copying-policy {BSD-Style, see 'tcl'-license}
date {MAY-06-2009}
primary-urls {
http://tcltrf.sourceforge.net/
}
development-platform {Linux 2.0.29, gcc 2.7.2.3}
platforms {
Linux 2.0.29 (gcc 2.7.2.3) Development system
IRIX 6.2 (cc only)
ULTRIX 4.1 (both cc and gcc)
ULTRIX 4.4 (cc 3.0)
HP-UX-9 (both cc and gcc)
HP-UX-10.2
Solaris 2.5 (gcc only)
Other machines and OS's should work too.
}
dependencies {
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),
}
}
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