yencode(n) [redhat man page]

yencode(n)						   encode/decoding a binary file						yencode(n)

NAME

       yencode - encode/decoding a binary file

SYNOPSIS

       package require Tcl 8

       package require yencode ?1.0?

       ::yencode::encode string

       ::yencode::decode string

       ::yencode::yencode ?-name string? ?-line integer? ?-crc32 boolean? (-file filename | ?--? string)

       ::yencode::ydecode (-file filename | ?--? string)

DESCRIPTION

       This  package  provides	a Tcl-only implementation of the yEnc file encoding. This is a recently introduced method of encoding binary files
       for transmission through usenet. This encoding packs binary data into a format that requires an 8-bit clean  transmission  layer  but  that
       escapes characters special to the NNTP posting protocols. See http://www.yenc.org/ for details concerning the algorithm.

       ::yencode::encode string
	      returns the yEnc encoded data.

       ::yencode::decode string
	      Decodes the given yEnc encoded data.

       ::yencode::yencode ?-name string? ?-line integer? ?-crc32 boolean? (-file filename | ?--? string)
	      Encode a file or block of data.

       ::yencode::ydecode (-file filename | ?--? string)
	      Decode a file or block of data. A file may contain more than one embedded file so the result is a list where each element is a three
	      element list of filename, file size and data.

OPTIONS

       -filename name
	      Cause the yencode or ydecode commands to read their data from the named file rather that taking a string parameter.

       -name string
	      The encoded data header line contains the suggested file name to be used when unpacking the data. Use this  option  to  change  this
	      from the default of "data.dat".

       -line integer
	      The  yencoded  data  header  line contains records the line length used during the encoding. Use this option to select a line length
	      other that the default of 128. Note that NNTP imposes a 1000 character line length limit and some gateways  may  have  trouble  with
	      more than 255 characters per line.

       -crc32 boolean
	      The  yEnc  specification	recommends  the  inclusion of a cyclic redundancy check value in the footer. Use this option to change the
	      default from true to false.

       % set d [yencode::yencode -file testfile.txt]
       =ybegin line=128 size=584 name=testfile.txt
	-o- data not shown -o-
       =yend size=584 crc32=ded29f4f

KEYWORDS

       encoding, uuencode, yEnc, yencode, ydecode

base64									1.0								yencode(n)

uuencode(n)					       Text encoding & decoding binary data					       uuencode(n)

__________________________________________________________________________________________________________________________________________________

NAME

       uuencode - UU-encode/decode binary data

SYNOPSIS

       package require Tcl  8

       package require uuencode  ?1.1.4?

       ::uuencode::encode string

       ::uuencode::decode string

       ::uuencode::uuencode ?-name string? ?-mode octal? (-file filename | ?--? string)

       ::uuencode::uudecode (-file filename | ?--? string)

_________________________________________________________________

DESCRIPTION

       This package provides a Tcl-only implementation of the uuencode(1) and uudecode(1) commands. This encoding packs binary data into printable
       ASCII characters.

       ::uuencode::encode string
	      returns the uuencoded data. This will encode all the data passed in even if this is longer than the uuencode maximum line length. If
	      the number of input bytes is not a multiple of 3 then additional 0 bytes are added to pad the string.

       ::uuencode::decode string
	      Decodes  the  given  encoded data. This will return any padding characters as well and it is the callers responsibility to deal with
	      handling the actual length of the encoded data. (see uuencode).

       ::uuencode::uuencode ?-name string? ?-mode octal? (-file filename | ?--? string)

       ::uuencode::uudecode (-file filename | ?--? string)
	      UUDecode a file or block of data. A file may contain more than one embedded file so the result is a list where  each  element  is  a
	      three element list of filename, mode value and data.

OPTIONS

       -filename name
	      Cause the uuencode or uudecode commands to read their data from the named file rather that taking a string parameter.

       -name string
	      The  uuencoded  data header line contains the suggested file name to be used when unpacking the data. Use this option to change this
	      from the default of "data.dat".

       -mode octal
	      The uuencoded data header line contains a suggested permissions bit pattern expressed as an octal string. To change the  default	of
	      0644 you can set this option. For instance, 0755 would be suitable for an executable. See chmod(1).

EXAMPLES

       % set d [uuencode::encode "Hello World!"]
       2&5L;&\@5V]R;&0A

       % uuencode::uudecode $d
       Hello World!

       % set d [uuencode::uuencode -name hello.txt "Hello World"]
       begin 644 hello.txt
       +2&5L;&@5V]R;&0`
       `
       end

       % uuencode::uudecode $d
       {hello.txt 644 {Hello World}}

BUGS, IDEAS, FEEDBACK
       This  document,	and the package it describes, will undoubtedly contain bugs and other problems.  Please report such in the category base64
       of the Tcllib SF Trackers [http://sourceforge.net/tracker/?group_id=12883].  Please also report any ideas for enhancements you may have for
       either package and/or documentation.

KEYWORDS

       encoding, uuencode

CATEGORY

       Text processing

COPYRIGHT

       Copyright (c) 2002, Pat Thoyts

base64								       1.1.4							       uuencode(n)