Unicode Font is not showing well

Htain Lin Shwe fa 8 anys updated by Worajedt Sitthidumrong fa 7 anys 1

SublimeText 2 can't show Myanmar Unicode correctly.

Top one is a SublimeText 2 and bottom is the Text mate 2.

Text Mate 2 show well but can't show well on sublime Text 2.



Also the problem is exist on Thai font on every platforms.

Upper/lower vowels chracters are not composed at the same position with main characters as it should be. :(