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| from typing import List | |
| from ukrainian_word_stress import Stressifier, StressSymbol | |
| import ukrainian_accentor as accentor | |
| stressify = Stressifier(stress_symbol=StressSymbol.CombiningAcuteAccent) | |
| vowels = "аеєиіїоуюя" | |
| consonants = "бвгґджзйклмнпрстфхцчшщь" | |
| special = "'-" | |
| alphabet = vowels + consonants + special + "+" | |
| def _shift_stress(stressed): | |
| new_stressed = "" | |
| start = 0 | |
| last = 0 | |
| # shift stress symbol by one "при+віт" -> "пр+ивіт" | |
| while True: | |
| plus_position = stressed.find("+", start) | |
| if plus_position != -1: | |
| new_stressed += ( | |
| stressed[last : plus_position - 1] + "+" + stressed[plus_position - 1] | |
| ) | |
| start = plus_position + 1 | |
| last = start | |
| else: | |
| new_stressed += stressed[last:] | |
| break | |
| return new_stressed | |
| def stress_with_model(text: str): | |
| text = text.lower() | |
| result = accentor.process(text, mode="plus") | |
| return result | |
| def stress_dict(sentence: str): | |
| stressed = stressify(sentence.replace("+", "")).replace( | |
| StressSymbol.CombiningAcuteAccent, "+" | |
| ) | |
| return _shift_stress(stressed) | |
| def sentence_to_stress(sentence: str, stress_function=stress_dict) -> str: | |
| # save custom stress positions | |
| all_stresses = [] | |
| orig_words = sentence.split(" ") | |
| for i in range(0, len(orig_words)): | |
| if "+" in orig_words[i]: | |
| all_stresses.append(i) | |
| # add stress before vowel | |
| new_stressed = stress_function(sentence) | |
| # stress single vowel words | |
| new_list = [] | |
| # if letter is not in alphabet, then consider it an end of the word | |
| previous = 0 | |
| for i, letter in enumerate(new_stressed): | |
| if letter.lower() not in alphabet: | |
| if previous == i: | |
| new_list.append(new_stressed[i]) | |
| else: | |
| new_list.append(new_stressed[previous:i]) | |
| new_list.append(new_stressed[i]) | |
| previous = i + 1 | |
| # add remainder | |
| if previous != len(new_stressed): | |
| new_list.append(new_stressed[previous:]) | |
| # add stress to single-vowel words | |
| for word_index in range(0, len(new_list)): | |
| element = new_list[word_index] | |
| vowels_in_words = list(map(lambda letter: letter in vowels, element.lower())) | |
| if "+" in element: | |
| continue | |
| if vowels_in_words.count(True) == 0: | |
| continue | |
| elif vowels_in_words.count(True) == 1: | |
| vowel_index = vowels_in_words.index(True) | |
| new_list[word_index] = element[0:vowel_index] + "+" + element[vowel_index::] | |
| new_stressed = "".join(new_list) | |
| # replace already stressed words | |
| if len(all_stresses) > 0: | |
| words = new_stressed.split(" ") | |
| for stressed in all_stresses: | |
| words[stressed] = orig_words[stressed] | |
| return " ".join(words) | |
| return new_stressed | |