I'm working with classes in my font to kern the font faster and more efficiently, but for some reason some classes aren't working. For example, I have to kern all my /a/s manually rather than kerning all /a/s at once. The /e/s are grouped though. I have the feeling things particularly go wrong when I have the base letter kerned before I apply the classes. What am I doing wrong?


Yes, I have. For some reason it doesn't always accept the first character as the master. Here's an example of my kerning classes:
_a: a' aacute acircumflex adieresis agrave atilde aring
The kerning classes are working for /e and /o, but not for /a. I have to kern each instance of /a manually. It's not the only class that doesn't seem to be working though.