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From: lwall@jpl-devvax.JPL.NASA.GOV (Larry Wall)
Newsgroups: comp.lang.perl
Subject: Re: Uudecode in Perl?
Message-ID: <9395@jpl-devvax.JPL.NASA.GOV>
Date: 4 Sep 90 16:31:01 GMT
References: <VX6uo4w162w@cybrspc> <1043800001@ux1.cso.uiuc.edu>
Reply-To: lwall@jpl-devvax.JPL.NASA.GOV (Larry Wall)
Organization: Jet Propulsion Laboratory, Pasadena, CA
Lines: 26

In article <1043800001@ux1.cso.uiuc.edu> phil@ux1.cso.uiuc.edu writes:
: ) While you are at it, I'd like to encourage you to include the capability
: ) to encode and decode the XXencode format as well.  XX is an alternative
: ) to UU that uses a different character set that does not run into the
: ) ambiguities of translation between IBM's EBCDIC character set and ASCII.
: ) XXencode works where UUencode does (requiring and XXdecoder of course)
: ) but also works in (non-UNIX) places that UU won't.
: ) 
: ) XX uses the following character set:
: ) 
: ) +-0123456789ABCDEFGHIJKLMNOPQRSTUVWXYZabcdefghijklmnopqrstuvwxyz
: ) 
: ) representing the binary values from 0 to 63 in that order.  By using
: ) a string index you can convert a 6 bit value to a character.  My C
: ) implementation built an array of 256 bytes indexed by the arriving
: ) character for the decoding process.  All the rest of the format is
: ) identical to the UUencode format.
: ) 
: ) UUencode won't go away, but XXencode is starting to see some uses
: ) among those in, or exchanging data with, IBM mainframes.

    tr/-+0-9A-Za-z/! "-_/;

Sheesh.

Larry