Comment 9 for bug 119588

I am not a Arabic expert but i have some informations:
In memory a Arabic word is as usual "Stand alone letter" separated by a space. But on screen a word is letters "ligatured". We cannot read a text who use "stand alone" letters as other language. In a Linux machine the job is done by pango who choice the glyph of the ligatured letter depending of place inside the word, start, middle, end and letter before and after. There is 7 rules to find the good one. The glyph used is generally just a part of the "stand alone letter" so an Arabic word seem very short.

So write Arabic using monospace letter seem just ... not possible.