app.py

import subprocess as sp
import sys

import gradio as gr
import romkan
from fugashi import Tagger

try:
    tagger = Tagger()
except:
    sp.call([sys.executable, "-m", "unidic", "download"])
    tagger = Tagger()

ALL_HIRA = "ぁあぃいぅうぇえぉおかがきぎくぐけげこごさざしじすずせぜそぞただちぢっつづてでとどなにぬねのはばぱひびぴふぶぷへべぺほぼぽまみむめもゃやゅゆょよらりるれろゎわゐゑをんゔゕゖ"
ALL_KATA = "ァアィイゥウェエォオカガキギクグケゲコゴサザシジスズセゼソゾタダチヂッツヅテデトドナニヌネノハバパヒビピフブプヘベペホボポマミムメモャヤュユョヨラリルレロヮワヰヱヲンヴヵヶ"

kata2hira_table = str.maketrans(ALL_KATA, ALL_HIRA)


def kata2hira(token) -> str:
    kana: str = token.feature.kana
    if not kana:
        return token.surface
    return kana.translate(kata2hira_table)


def get_hira_roma(kanji):
    hira = [kata2hira(token) for token in tagger(kanji)]
    roma = [romkan.to_roma(token) for token in hira]
    hira = "".join(hira)
    roma = " ".join(roma)
    return hira, roma, f"{kanji} {hira} {roma}"


def main():
    font = gr.themes.GoogleFont("NotoSans CJK")
    theme = gr.themes.Soft(font=font)
    with gr.Blocks(theme) as app:
        with gr.Row():
            with gr.Column(scale=1):
                text = gr.Textbox(label="Text", placeholder="日本語", show_copy_button=True)
                hira = gr.Textbox(label="Hiragana", show_copy_button=True)
                roma = gr.Textbox(label="Roma", show_copy_button=True)
                line = gr.Textbox(label="Copy", show_copy_button=True)

        text.submit(get_hira_roma, text, [hira, roma, line], show_progress="hidden")

    app.launch()


if __name__ == "__main__":
    main()