fix beg/end variable binding during exit hook

[lewang]

...xit-snippet-hook.

The documentation claims this is the case, but code doesn't follow.

[joaotavora]

I understand the issue, fixed it with a simpler change (yas/snippet-beg and yas/snippet-end should be defvars anyway.

Out of curiosity, what is your use case for the snippet exit hook?

Also, your commit changed some trailing whitespace. These cleanups are more than welcome, but please present them in a separate commit.

[lewang]

re: farfetched. You know what kind of people use Emacs right? ;)

For my specific case, I went another way and the exit hook doesn't modify buffer any more. In general though, it's conceivably useful for Javascript example, starting with "(fn|)" of "(fn|);" and expanding to:

(function (arg1, arg2) {

})(arg1, arg2)

I want to add the semi-colon if it's not already there.

[lewang]

As a side note, instead of doing this, I'm using autopair to add the semi-colon where appropriate according to js2-mode.

see: http://stackoverflow.com/questions/9241523/emacs-is-it-possible-to-automatically-insert-semicolons-in-js2-mode

[joaotavora]

re: re: farfetched. Ahahaha, you're totally right :-D

OK I see, you want to add text outside the expansion area of the snippet! then the snippet exit hook is the way to go yes.

I'm very curious though, how you use autopair (another extension I maintain...) to add semicolons...

[lewang]

I've posted a gist

[joaotavora]

Fantastic!