Grammalecte  Diff

# list of similar chars
# useful for suggestion mechanism

import re


def distanceDamerauLevenshtein (s1, s2):
    "distance of Damerau-Levenshtein between <s1> and <s2>"
    # https://fr.wikipedia.org/wiki/Distance_de_Damerau-Levenshtein
    d = {}
    nLen1 = len(s1)
    nLen2 = len(s2)

    "on": ("ons", "ont"),
    "ON": ("ONS", "ONT"),
    "oi": ("ois", "oit", "oix"),
    "OI": ("OIS", "OIT", "OIX"),
}


# Préfixes et suffixes

aPfx1 = frozenset([
    "anti", "archi", "contre", "hyper", "mé", "méta", "im", "in", "ir", "par", "proto",
    "pseudo", "pré", "re", "ré", "sans", "sous", "supra", "sur", "ultra"
])
aPfx2 = frozenset([
    "belgo", "franco", "génito", "gynéco", "médico", "russo"
])


_zMotAvecPronom = re.compile("^(?i)(\\w+)(-(?:t-|)(?:ils?|elles?|on|je|tu|nous|vous))$")

def cut (sWord):
    "returns a tuple of strings (prefix, trimed_word, suffix)"
    m = _zMotAvecPronom.search(sWord)
    if m:
        return ("", m.group(1), m.group(2))
    return ("", sWord, "")


# Other functions

def filterSugg (aSugg):
    "exclude suggestions"
    return filter(lambda sSugg: not sSugg.endswith(("è", "È")), aSugg)