From github. https://github.com/golang/go/issues/12298
Arabic ligitures have been deprecated[1], despite a need for both ligitures and non-ligature versions of the same glyphs. Amiri uses contextual alternatives for الله. These ligatures are used in religious documents[2] via pictures, which seems to be what the current Unicode standard recommends. Unlike the presentation forms, there is case for these phrases and formulas to be available both in ligature and non-ligature form. These ligatures should be non-deprecated and subject to canonical decomposition, rather than compatibility decomposition. http://www.unicode.org/reports/tr15 [1] https://en.wikipedia.org/wiki/Arabic_script_in_Unicode#Word_ligatures [2] http://www.mujahideenryder.net/pdf/WhoAretheDisbelievers.pdf
