#+SETUPFILE: org-setup.inc

#+TITLE: Frequently Asked Questions

-  *Note*: In addition to the questions and answers presented here,
  you might also with to visit the list of [[https://github.com/joaotavora/yasnippet/issues?q=label%3Asupport][solved support issues]] in
  the Github issue tracker.  It might be more up-to-date than this
  list.

* Why is there an extra newline?

If there is a newline at the end of a snippet definition file,
YASnippet will add a newline when expanding that snippet. When editing
or saving a snippet file, please be careful not to accidentally add a
terminal newline.

Note that some editors will automatically add a newline for you. In
Emacs, if you set =require-final-newline= to =t=, it will add the
final newline automatically.

* Why doesn't TAB navigation work with flyspell

A workaround is to inhibit flyspell overlays while the snippet is
active:

#+BEGIN_SRC emacs-lisp
  (add-hook 'flyspell-incorrect-hook
            #'(lambda (dummy1 dummy2 dymmy3)
                (and yas-active-field-overlay
                     (overlay-buffer yas-active-field-overlay))))
#+END_SRC

This is apparently related to overlay priorities. For some reason, the
=keymap= property of flyspell's overlays always takes priority over the
same property in YASnippet's overlays, even if one sets the latter's
=priority= property to something big. If you know emacs-lisp and can
solve this problem, drop a line in the
[[http://groups.google.com/group/smart-snippet][discussion group]].

* How do I use alternative keys, i.e. not TAB?

Edit the keymaps [[sym:yas-minor-mode-map][=yas-minor-mode-map=]] and
[[sym:yas-keymap][=yas-keymap=]] as you would any other keymap:

#+begin_src emacs-lisp :exports code
   (define-key yas-minor-mode-map (kbd "<tab>") nil)
   (define-key yas-minor-mode-map (kbd "TAB") nil)
   (define-key yas-minor-mode-map (kbd "<the new key>") yas-maybe-expand)

   ;;keys for navigation
   (define-key yas-keymap [(tab)]       nil)
   (define-key yas-keymap (kbd "TAB")   nil)
   (define-key yas-keymap [(shift tab)] nil)
   (define-key yas-keymap [backtab]     nil)
   (define-key yas-keymap (kbd "<new-next-field-key>") 'yas-next-field-or-maybe-expand)
   (define-key yas-keymap (kbd "<new-prev-field-key>") 'yas-prev)
#+end_src

* How do I turn off the minor mode where in some buffers?

The best way, since version 0.6.1c, is to set the default value of the
variable [[sym:yas-dont-activate][=yas-dont-activate=]] to a lambda function like so:

#+BEGIN_SRC emacs-lisp
  (set-default 'yas-dont-activate
               #'(lambda ()
                   (and yas-root-directory
                        (null (yas-get-snippet-tables)))))
#+END_SRC

This is also the default value starting for that version. It skips the
minor mode in buffers where it is not applicable (no snippet tables),
but only once you have setup your yas-root-directory.

* How do I define an abbrev key containing characters not supported by the filesystem?

-  *Note*: This question applies if you're still defining snippets
   whose key /is/ the filename. This is behavior still provided by
   version 0.6 for backward compatibilty, but is somewhat
   deprecated...

For example, you want to define a snippet by the key =<= which is not a
valid character for filename on Windows. This means you can't use the
filename as a trigger key in this case.

You should rather use the =# key:= directive to specify the key of the
defined snippet explicitly and name your snippet with an arbitrary valid
filename, =lt.YASnippet= for example, using =<= for the =# key:=
directive:

#+BEGIN_SRC snippet
  # key: <
  # name: <...></...>
  # --
  <${1:div}>$0</$1>
#+END_SRC