===========================================================================
cbmcodecs2 - Python encodings for handling PETSCII and C64 Screencode text.
===========================================================================
Introduction
============
The cbmcodecs2 package provides a number of encodings for handling text from
Commodore 8-bit systems. Much of the credit for this package must go to
Linus Walleij of Triad, as these codecs were built from his PETSCII to Unicode
mappings which can be found at http://www.df.lth.se/~triad/krad/recode/petscii.html
The screencodes codec was created by hand later and borrows from them.
This package is an updated fork of the original cbmcodecs package, which now seems unmaintained.
Requires Python 3.x
Installation
============
Easiest is to install the latest version directly `from Pypi <https://pypi.org/project/cbmcodecs2/>`_ :
``pip install cbmcodecs2``
Usage
=====
Currently there are four codecs defined for variations of the PETSCII encoding:
petscii_c64en_lc
The English version of the Commodore 64 mixed-case character set
petscii_c64en_uc
The English version of the Commodore 64 upper-case/graphics character set
petscii_vic1001jp_gr
The Japanese version of the VIC-1001 Latin upper-case/graphics character set
petscii_vic1001jp_kk
The Japanese version of the VIC-1001 Latin upper-case/katakana character set
petscii_vic20en_lc
The English version of the VIC-20 mixed-case character set
petscii_vic20en_uc
The English version of the VIC-20 upper-case/graphics character set
There are two codecs defined to handle the Screencode (POKE) encoding:
screencode_c64_lc
Mixed-case mapping to screencodes (POKE) used by the Commodore 64 and Vic20
screencode_c64_uc
Upper-case/graphics mapping to screencodes (POKE) used by the Commodore 64 and Vic20
Simply import the cbmcodecs2 package and you will then be able to use them as
with any of the encodings from the standard library::
import cbmcodecs2
with open('file.seq', encoding='petscii_c64en_lc') as f:
for line in f:
print(line)
License
=======
As with the original PETSCII to Unicode mapping files, the cbmcodecs2 package
is Licensed under the GNU GPL Version 2, see the ``LICENSE.txt`` file for the
full text.
Unicode symbols used
====================
Aside from the regular alphanumerics and symbols, the unicode mapping uses the
following unicode block drawing and other symbols to mimic a bunch of PETSCII characters:
£ π ✓ ← ↑ ─ │ ┌ ┐ └ ┘ ├ ┤ ┬ ┴ ┼ ╭ ╮ ╯ ╰
╱ ╲ ╳ ▁ ▂ ▃ ▄ ▌ ▍ ▎ ▏ ▒ ▔ ▕ ▖ ▗ ▘ ▚ ▝
○ ● ◤ ◥ ♠ ♣ ♥ ♦
Credits
=======
Linus Walleij - Original C64 and VIC-20 mappings
Dan Johnson - Translation of C64 & VIC-20 mappings to python codecs
Irmen de Jong - Screencode mappings, bug fixes and unit tests. Updated to cbmcodecs2 package.
Simon Rowe - box drawing character improvements and Japanese VIC-1001 codecs.
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