X-Git-Url: https://wannabe.guru.org/gitweb/?a=blobdiff_plain;f=unscrambler.py;h=3ccddbbea5ef3f59e3915c5046586e62f74f1182;hb=7641e2ac7bf22ddfa0ef6c12b127e72dfbfb7f28;hp=1b242309b649eaa036277fdb22fc6f9c7705f0c8;hpb=e8fbbb7306430478dec55d2c963eed116d8330cc;p=python_utils.git diff --git a/unscrambler.py b/unscrambler.py index 1b24230..3ccddbb 100644 --- a/unscrambler.py +++ b/unscrambler.py @@ -1,5 +1,7 @@ #!/usr/bin/env python3 +# © Copyright 2021-2022, Scott Gasch + """A fast word unscrambler library.""" import logging @@ -100,10 +102,16 @@ class Unscrambler(object): lookup methods support a "fuzzy match" argument that can be set to request similar words that do not match exactly in addition to any exact matches. - """ def __init__(self, indexfile: Optional[str] = None): + """ + Constructs an unscrambler. + + Args: + indexfile: overrides the default indexfile location if provided + """ + # Cached index per instance. self.sigs = [] self.words = [] @@ -120,6 +128,7 @@ class Unscrambler(object): @staticmethod def get_indexfile(indexfile: Optional[str]) -> str: + """Returns the current indexfile location.""" if indexfile is None: if 'unscrambler_default_indexfile' in config.config: indexfile = config.config['unscramble_indexfile'] @@ -175,6 +184,12 @@ class Unscrambler(object): the word and their frequencies. We try to cluster "similar" words close to each other in the signature space. + Args: + word: the word to compute a signature for + + Returns: + The word's signature. + >>> train = Unscrambler.compute_word_sig('train') >>> train 23178969883741 @@ -199,9 +214,14 @@ class Unscrambler(object): dictfile: str = '/usr/share/dict/words', indexfile: str = '/usr/share/dict/sparse_index', ) -> None: - """Before calling this method, change letter_sigs from the default above - unless you want to populate the same exact files. + """ + Repopulates the indexfile. + + .. warning:: + Before calling this method, change letter_sigs from the + default above unless you want to populate the same exact + files. """ words_by_sigs: Dict[int, str] = {} seen = set() @@ -227,10 +247,20 @@ class Unscrambler(object): """Looks up a potentially scrambled word optionally including near "fuzzy" matches. + Args: + word: the word to lookup + window_size: the number of nearby fuzzy matches to return + + Returns: + A dict of word -> bool containing unscrambled words with (close + to or precisely) the same letters as the input word. The bool + values in this dict indicate whether the key word is an exact + or near match. The count of entries in this dict is controlled + by the window_size param. + >>> u = Unscrambler() >>> u.lookup('eanycleocipd', window_size=0) {'encyclopedia': True} - """ sig = Unscrambler.compute_word_sig(word) return self.lookup_by_sig(sig, window_size=window_size) @@ -240,6 +270,18 @@ class Unscrambler(object): a previous call to Unscrambler.compute_word_sig. Optionally returns near "fuzzy" matches. + Args: + sig: the signature of the word to lookup (see :meth:`compute_word_sig` + to generate these signatures). + window_size: the number of nearby fuzzy matches to return + + Returns: + A dict of word -> bool containing unscrambled words with (close + to or precisely) the same letters as the input word. The bool + values in this dict indicate whether the key word is an exact + or near match. The count of entries in this dict is controlled + by the window_size param. + >>> sig = Unscrambler.compute_word_sig('sunepsapetuargiarin') >>> sig 18491949645300288339 @@ -247,7 +289,6 @@ class Unscrambler(object): >>> u = Unscrambler() >>> u.lookup_by_sig(sig) {'pupigerous': False, 'pupigenous': False, 'unpurposing': False, 'superpurgation': False, 'unsupporting': False, 'superseptuaginarian': True, 'purpurogallin': False, 'scuppaug': False, 'purpurigenous': False, 'purpurogenous': False, 'proppage': False} - """ ret = {} (_, location) = list_utils.binary_search(self.sigs, sig)