 During Uyghur rule, the peoples mixed with the Uyghurs to produce much of the modern population of what is now Xinjiang.The Tocharian script is based on Brahmi, with each consonant having an inherent vowel, which can be altered by adding a vowel mark or removed by a special nullifying mark, the virama.Like Brahmi, Tocharian uses stacking for conjunct consonants and has irregular conjunct forms of , ra.