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The converters/btoa port

btoa-5.2.1p0 – encode/decode binary to printable ASCII (cvsweb github mirror)

Description

This is a port of btoa version 5.2, written by Paul Rutter, Joe
Orost & Stefan Parmark.  btoa converts 4 binary characters to 5
ascii ones, causing a 25% expansion.  (btoa is thus more efficient
than uuencode, which causes a 33% expansion.)  Spaces will not be
used, which should make it safe to send files over e-mail or Usenet
without risking that blanks become tabs.  Each resulting row of
text has a single-byte checksum for error detection.  A diagnosis
file provides a list of errors found this way, which could then be
used to retransmit only the failing lines.
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