Allow to use inner classes in btree files

[Genhis]

Fixes #101

[davebaol]

The $ should be legal only after the last . I mean, if I got it right your change allows illegal stuff like package.Class$Inner.package2. Correct me if I'm wrong.

[Genhis]

You are correct; however, I couldn't find a way to do it, and since the issue has been open for more than a year, I wanted to contribute with my (though not optimal) solution.

I do not know Ragel, so I just edited the file manually in the simplest way I could and let ragel to build the java file. I would appreciate any advice regarding Ragel.

If you know how to quickly fix it, feel free to close this pull request.

[davebaol]

Please, try the following

id = [a-zA-Z_] [a-zA-Z_0-9]*;
...
taskName = idBegin ('.' id)* ('$' id)* '?'? %{isSubtreeRef = false;} %taskName;

This change should cover the following sample task names:

• default package
  • Class
  • Class$Inner
  • Class$Inner$Inner2$Inner3$...
• non default package
  • a.b.c.Class
  • a.b.c.Class$Inner
  • a.b.c.Class$Inner$Inner2$...

Please, let me know if it works as expected.

[Genhis]

It works as expected, thanks :) I updated the PR to reflect your changes.

[davebaol]

Merged! Thanks :)