Token's highlighter does not work with long strings

Editor does not highlight tokens which contain more than 4 characters.

I forked the JetBrains SimplePlugin github repository (https://github.com/JetBrains/SimplePlugin)

This is my fork https://github.com/danblack/SimplePlugin

I created a token IDENT and defined it in Simple.flex file

IDENT="GET"|"POST"|"FETCH"|"DELETE"

IDE editor highlight strings when I write token GET or POST. But it does not highlight tokens FETCH or DELETE.

But if I insert a new line before DELETE or FETCH than editor highlights it correctly.

All code is available in my repository - https://github.com/danblack/SimplePlugin

Video shows editor highlighting - http://www.youtube.com/watch?v=GHCzVCHDYV4

What is wrong with my code?

Help me, please.