I am trying to work with Arabic and English texts in the same buffer. They don't have to be in the same paragraphs.
A text like
والإكرام و نوافج is shown as separate letters.
Contrary to English, in Arabic, the letters should change the form depending on their position (beginning, middle or end). I see the individual: و ا ل إ ك رام و ن وا ف ج.
Emacs recognizes that the Arabic text is left-to-right though. The backspace key deletes the last logical letter, that is,the letter to the right of the cursor.