avy-goto-subword-0 isn't very accurate

[tsdh]

Even with my fix from the second commit in #3, avy-goto-subword-0 isn't too accurate. With a word like ThisIsATest, it considers This, Is, and ATest as subwords. But of course ATest are actually two subwords.

I think a proper fix would be to re-use subword-forward-regexp defined in emacs' subword.el. (That also requires case-fold-seach to be nil, so my second commit from #3 is correct anyway.)

[abo-abo]

re-use subword-forward-regexp

I could remove the function completely and then just use subword in avy-goto-word-0 if subword-mode is on. What do you think?

[tsdh]

Not sure. If subword-mode is active, then the user has obviously a preference for subword navigation. OTOH, subword gives many more candidates in e.g. Java buffers and other langs using CamelCaseStyle, and usually you want to jump to the beginning of a method, class, field, or variable in at least 90% of all cases. So I think I prefer the current behavior.

By the way: I noticed that with avy-goto-subword-0, the paths are printed before the leading char of the subword. With avy-goto-word-0 (and I think with all other avy-jump commands) they are printed after the leading char. Ah, you've actually explained that in #5, i.e., subword uses avy--overlay-pre, the others avy--overlay-post. :-)