https://github.com/fiorix/pyascii85

Ascii85 encoder and decoder for python
https://github.com/fiorix/pyascii85

Last synced: 18 days ago
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Ascii85 encoder and decoder for python

• Host: GitHub
• URL: https://github.com/fiorix/pyascii85
• Owner: fiorix
• License: gpl-2.0
• Created: 2013-07-31T13:06:31.000Z (over 11 years ago)
• Default Branch: master
• Last Pushed: 2013-07-31T13:06:40.000Z (over 11 years ago)
• Last Synced: 2024-10-15T11:21:40.305Z (2 months ago)
• Language: C
• Homepage:
• Size: 113 KB
• Stars: 3
• Watchers: 3
• Forks: 0
• Open Issues: 0
• Metadata Files:
  • Readme: README
  • License: COPYING

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README

        
This Python extension provides Ascii85 Data Encodings.

For more information check wikipedia's Ascii85:

    http://en.wikipedia.org/wiki/Ascii85

BUILDING

 

 To build the extension do the following:

   $ python setup.py build_ext -i

USAGE

 encoding:

   encode(input, output, begin_tag=True, end_tag=True)

   b85encode(buffer, begin_tag=True, end_tag=True)

 

 decoding:

   decode(input, output)

   b85decode(buffer)

TAGS

 Ascii85 begin and end tags are <~ and ~>, respectively. Why they're optional while encoding? 

 For instance, when embedding RGB images into PostScript as Ascii85, the initial tag <~ isn't necessary.

 However, the decoder require such tags. 

EXAMPLES

 (from buffer)

 >>> import ascii85

 >>> v = ascii85.b85encode('sample test')

 >>> ascii85.b85decode(v)

 'sample test'

 >>> v

 '<~F(&p)Ch4`2ATMq~>\n'

 

 

 (from file)

 >>> ascii85.encode(file('/etc/motd'), sys.stdout)

 <~9PJBeGT^d?DJ((I/iG=;0J,";/SAX4ATDKp+9DBO%4Ec#k?AoD]4ART(^+E

 2@>B6%Et+CT;%+Co&)@rc9mARlotDBO%7AI<-hA8-4$A9D(ATJu.DBLTTF)ipTBOPpm

 04]!20.JVbDfBuBBkM+$/[email protected]/4+@/=m:J=bf78-i,:/

 

 2008-01-03 Alexandre Fiori