First version

program/convert-furigana.py

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+import sys
+import os
+from glob import glob
+import re
+
+### Patterns ###
+
+# https://www.reddit.com/r/learnpython/comments/h0tsaa/regex_expression_for_japanese_extracting/
+re_brace = '{(.+?)}'
+re_kanji = '([㐀-䶵一-鿋豈-頻]+)'
+re_kana = '([ぁ-ゟ゠-ヿ]+)'
+
+### Open file ###
+
+def open_file(filename):
+    with open(filename, 'r', encoding='utf-8-sig') as file:
+        filedata = file.read()
+        return filedata
+
+### Replace ###
+
+def write_ruby_simple(kanji, kana):
+    return f"<ruby>{kanji}<rt>{kana}</rt></ruby>"
+
+def write_ruby_multiple(kanji, kanas):
+    result = f"<ruby>"
+    for idx, kana in enumerate(kanas):
+        result += f"{kanji[idx]}"
+        result += f"<rt>{kana}</rt>"
+    result += f"</ruby>"
+    return result
+
+def convert_to_ruby(content):
+    kanji = re.search(re_kanji, content.group())
+    kana = re.findall(re_kana, content.group())
+
+    if (len(kana) == 1):
+        return write_ruby_simple(kanji.group(), kana[0])
+    else:
+        return write_ruby_multiple(kanji.group(), kana)
+
+def convert_pattern(text):
+    res_text = re.sub(re_brace, convert_to_ruby, text)
+    return res_text
+
+### Write to file ###
+
+def write_file(filename, text):
+    with open(filename, 'w', encoding='utf-8-sig') as file:
+        file.write(text)
+
+
+### Execution ###
+
+file_list = []
+
+if len(sys.argv) > 1:
+    path = sys.argv[1]
+    for filename in glob(path + "/**/*.md", recursive=True):
+        if (os.path.isfile(filename)):
+            file_list.append(filename)
+else:
+    print(f"Usage: python3 {sys.argv[0]} [root folder]")
+    print(f"Note: Please be careful, this software applies modifications recursively!")
+
+for filename in file_list:
+    print(f"Found file {filename}, processing...", end='')
+    data = open_file(filename)
+    text = convert_pattern(data)
+    write_file(filename, text)
+    print(f" done!")