OK, I would like to answer your questions.
1. The script direction of Hakka is left-to-right. 2. Hakka is a Chinese dialect, it's different from other Chinese dialects. You may deem it an independent language that coded by Chinese character. 3. We use "Hak-kâ-fa" as Romanize script, "客家話" in Chinese character, "Hakka" in English.
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