Plover Python dictionary

Add support for Python dictionaries to Plover.

Usage

A Python dictionary is simply a single UTF-8 source file with the following API:

# Length of the longest supported key (number of strokes).
LONGEST_KEY = 1

# Lookup function: return the translation for <key> (a tuple of strokes)
# or raise KeyError if no translation is available/possible.
def lookup(key):
    assert len(key) <= LONGEST_KEY
    raise KeyError

# Optional: return an array of stroke tuples that would translate back
# to <text> (an empty array if not possible).
def reverse_lookup(text):
    return []

For example save the following code to show_stroke.py:

Note: make sure the file encoding is UTF-8!

LONGEST_KEY = 2

SHOW_STROKE_STENO = 'STR*'

def lookup(key):
    assert len(key) <= LONGEST_KEY, '%d/%d' % (len(key), LONGEST_KEY)
    if SHOW_STROKE_STENO != key[0]:
        raise KeyError
    if len(key) == 1:
        return ' '
    return key[1]

Then add it to your dictionaries stack as you would a normal dictionary.

Now, if you stroke STR*, then the next stroke will be shown verbatim (untranslated), e.g. -T STROEBG TP-R KW-GS STROEBG KR-GS S STR* STROEBG outputs: the stroke for "stroke" is STROEBG.

Release history

1.1.0

fix type checks for lookup and reverse_lookup: allow bound methods and functors
fix reverse_lookup implementation: return a set.
fix __getitem__ / get implementations: when the key length is out of bounds
fix __contains__ implementation
fix __delitem__ / __setitem__ implementations: raise the correct exception type

1.0.0

fix possible encoding issue when loading a dictionary: from now on, assume and force UTF-8

0.5.12

update changelog...

0.5.11

drop support for Python < 3.6
fix use of deprecated imp module
rework tests to use plover_build_utils.testing
use PEP 517/518

0.5.10

fix ./setup.py test handling
fix default implementation of reverse_lookup to return a list (not a tuple)

0.5.9

update to Plover's latest API

openstenoproject / plover_python_dictionary