Language pairs
Direction oneIranian Persian ⇆ English
Also indexed as Farsi (ISO 639-3 pes). Both directions, with first-language standing in both.
Direction twoDari → English
Also indexed as Afghan Persian (ISO 639-3 prs). Into English only; a Dari target is not work I take on.
Direction threeTajik → English
Also indexed as Tajik Persian (ISO 639-3 tgk); Persian in Cyrillic script. Into English only; a Tajik target is not offered.
Arabic within Persian texts
Arabic is not offered as a source language. What is covered is the Arabic found inside Persian texts — religious passages and the fixed formulae of civil and official records, and the quotation and verse that run through classical Persian literature — translated as part of the text it belongs to. A source that is wholly in Arabic is not work I take on.