This program regularizes Katakana (especially person-names) with some heuristic rules. The rules are as follows:
- Non-standard Katakana characters are standardized; e.g., (ヲ→オ), (ヅ→ズ) (ヂ→ジ)
- Non-standard use of small characters (小書き文字) is standardized; e.g., (レァ→レア), (シィ→シー), (デェ→デー), (タィ→タイ)
- Unnecessary consecutive characters are omitted; e.g., (ーー→ー), (ンン→ン)
- エマヌュエル（Emanuel）→エマニュエル
- デカダンスドュショコラ（Decadence du Chocolat）→デカダンスデュショコラ