Syntax Highlighting

[Imperceptus]

I have been always tinkering with ways of syntax highlighting. and Have wondered a main thing in general. When the highlighting procedure triggers should a object(being the part of text to highlight) be checked to see if it has been colored already? Or should it just be ignored and treated like it wasn't?

[Barabajagal]

Checking beforehand often prevents flickering of interfaces. It sort of depends on how often you run the highlight scanner.