$ recognized as word boundary

[felixhao28]

Description

class $Apple {
 void $func$tion() {
 this_x = 5;
 this$xx = 4;
 abc$xx = 5;
 x = 5;
 int abc$xx = 5;
 int abc_xx = abc$xx;
 $App$le this$_xx = abc$xx;
 }
}

Code like this messes up the highlight pretty bad. This is what looks like now:

This is what should look like:

Version:
7c3d0d3

[sadikovi]

Other issues related to $: #33.