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# Copyright Jiaqi Liu
#
# Licensed under the Apache License, Version 2.0 (the "License");
# you may not use this file except in compliance with the License.
# You may obtain a copy of the License at
#
# http://www.apache.org/licenses/LICENSE-2.0
#
# Unless required by applicable law or agreed to in writing, software
# distributed under the License is distributed on an "AS IS" BASIS,
# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
# See the License for the specific language governing permissions and
# limitations under the License.
from wiktionary.wiktextract.parse import get_part_of_speech
GERMAN_CASES = ["nominative", "genitive", "dative", "accusative"]
def get_gender_modifier(vocabulary) -> str:
if get_part_of_speech(vocabulary) == "noun" and "categories" in vocabulary:
if "German masculine nouns" in vocabulary["categories"]:
return "der "
if "German feminine nouns" in vocabulary["categories"]:
return "die "
if "German neuter nouns" in vocabulary["categories"]:
return "das "
return ""
def get_german_inflection(vocabulary) -> dict:
inflections = {"declension": None, "conjugation": None}
if get_part_of_speech(vocabulary) == "noun":
inflections["declension"] = get_german_noun_declensions(vocabulary)
if get_part_of_speech(vocabulary) == "adj":
inflections["declension"] = get_german_adj_declensions(vocabulary)
return inflections
def get_german_adj_declensions(vocabulary) -> dict:
"""
There will be 3 x 3 list of maps for an adj. declensions with the first 3 corresponding to
`adj. degree <https://en.wikipedia.org/wiki/Adjective#Comparison_(degrees)>`_:
1. 3 for regular (positive) form
2. 3 for comparative form
3. 3 for mixed form
and the second 3 corresponding to the declension type of
1. strong declension
2. weak declension
3. mixed declension
Each list contains 4 maps. Each of the 4 maps is two-key indexed with the 1st index being the number & gender:
- "masculine"
- "feminine"
- "neuter"
- "plural
and the 2nd index being the case:
- "nominative"
- "genitive"
- "dative"
- "accusative"
An example data source can be found at https://en.wiktionary.org/wiki/mobil#Declension_2
:param vocabulary: a wiktextract JSONL line corresponding to an adjective (pos = "adj")
:return: a map with 3 entries, each for corresponds to a adj. degree with 3 corresponding sub-maps, totaling the 9
maps mentioned above. If the `vocabulary` does not have a `forms` field, where all declension info reside, this
function returns an empty map
"""
if "forms" not in vocabulary:
return {}
forms = [form for form in vocabulary["forms"] if "source" in form and form["source"] == "declension"]
numbergenders = ["masculine", "feminine", "neuter", "plural"]
conjugations = {
"positive": {"strong": [], "weak": [], "mixed": []},
"comparative": {"strong": [], "weak": [], "mixed": []},
"superlative": {"strong": [], "weak": [], "mixed": []},
}
for degree in conjugations.keys():
for declension_type in ["strong", "weak", "mixed"]:
for numbergender in numbergenders:
dec_by_case = {}
for case in GERMAN_CASES:
for declension in forms:
tags = declension["tags"]
if (degree in tags or degree == "positive") and declension_type in tags:
if numbergender in tags and case in tags:
if declension["form"]:
dec_by_case[case] = declension["form"]
if len(dec_by_case) > 0:
conjugations[degree][declension_type].append(dec_by_case)
return conjugations
def get_german_noun_declensions(vocabulary):
if "forms" not in vocabulary:
return {}
forms = [form for form in vocabulary["forms"] if "source" in form and form["source"] == "declension"]
numbers = ["singular", "plural"]
declensions = {}
for number in numbers:
dec_by_case = {}
for case in GERMAN_CASES:
for declension in forms:
tags = declension["tags"]
if number in tags and case in tags:
if declension["form"]:
dec_by_case[case] = declension["form"]
if len(dec_by_case) > 0:
declensions[number] = dec_by_case
return declensions
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