# Intro

**YASnippet** is a template system for Emacs. It allows you to
type an abbreviation and automatically expand it into function
templates. Bundled language templates include: C, C++, C#, Perl,
Python, Ruby, SQL, LaTeX, HTML, CSS and more. The snippet syntax
is inspired from [TextMate's][textmate-snippets] syntax, you can
even [import][import-docs] most TextMate templates to
YASnippet. Watch [a demo on YouTube][youtube-demo] or download a
[higher resolution version][high-res-demo].

[textmate-snippets]: http://manual.macromates.com/en/snippets
[import-docs]: http://yasnippet.googlecode.com/svn/trunk/doc/snippet-development.html#importing-textmate-snippets
[youtube-demo]: http://www.youtube.com/watch?v=ZCGmZK4V7Sg
[high-res-demo]: http://yasnippet.googlecode.com/files/yas_demo.avi

# Installation

## Install the most recent version

Clone this repository somewhere

    $ cd ~/.emacs.d/plugins
    $ git clone https://github.com/capitaomorte/yasnippet

Add the following in your `.emacs` file:

    (add-to-list 'load-path
                  "~/.emacs.d/plugins/yasnippet")
    (require 'yasnippet)
    (yas-global-mode 1)

Add your own snippets to `~/.emacs.d/snippets` by placing files there or invoking `yas-new-snippet`.

## Install with `package-install`

In a recent emacs `M-x list-packages` is the recommended way to list and install packages.
[MELPA][melpa] keeps a very recent snapshot of YASnippet, see http://melpa.milkbox.net/#installing.

## Install with el-get

El-get is a nice way to get the most recent version, too. See
https://github.com/dimitri/el-get for instructions. Be sure to install the
"master" branch since the 3.x series still use the old googlecode code, base.
Consider using this "local" recipe.

    (push '(:name yasnippet
                  :website "https://github.com/capitaomorte/yasnippet.git"
                  :description "YASnippet is a template system for Emacs."
                  :type github
                  :pkgname "capitaomorte/yasnippet"
                  :features "yasnippet"
                  :compile "yasnippet.el")
          el-get-sources)

## Use `yas-minor-mode` on a per-buffer basis

To use YASnippet as a non-global minor mode, replace `(yas-global-mode 1)` with
`(yas-reload-all)` to load the snippet tables. Then add a call to
`(yas-minor-mode)` to the major-modes where you to enable YASnippet.

    (add-hook 'prog-mode-hook
              '(lambda ()
                 (yas-minor-mode)))

# (NOT) Contributing snippets

Please **do not** open pull requests or ask me to add snippets to
YASnippet.

The bundled collection under `/snippets` is considered frozen: **I
will not add more snippets to it**.

You can point `yas-snippet-dirs` to good snippet collections out
there. If you have created snippets for a mode, or multiple modes,
consider creating a repository to host them, then tell users that it
should be added like this to `yas-snippet-dirs`:

    (setq yas-snippet-dirs
          '("~/.emacs.d/snippets"            ;; personal snippets
            "/path/to/some/collection/"      ;; just some foo-mode snippets
            "/path/to/some/othercollection/" ;; some more foo-mode and a complete baz-mode
            "/path/to/yasnippet/snippets"    ;; the default collection
            ))

    (yas-global-mode 1) ;; or M-x yas-reload-all if you've started YASnippet already.

# Importing TextMate snippets

There is a tool `extras/textmate-import.rb` than can import many
actual TextMate snippets. These can be quite complex so the
`extras/imported/*-mode/.yas-setup.el` files help it with the more
difficult importation.

I'm focusing on developing `textmate-import.rb` tool and some
`yas-setup.el` files. In the future `/snippets` snippets will be
deprecated and might be replaced with `extras/imported`.

## Example importation of rails snippets

To start using [drnic's](https://github.com/drnic) snippets for rails
development, follow this example. It will convert `ruby`, `rails` and
`html` bundles from github repositories. The importation will be
guided by the `.yas-setup.el` files.

After cloning this repository to `~/.emacs.d/plugins/yasnippet`

    cd ~/.emacs.d/plugins/yasnippet
    git submodule init
    git submodule update
    gem install plist trollop
    rake convert_bundles             # will convert ruby, rails and html bundles

Then, in your `.emacs` file

    (add-to-list 'load-path
                  "~/.emacs.d/plugins/yasnippet")
    (require 'yasnippet)
    (setq yas-snippet-dirs '("~/.emacs.d/snippets" "~/.emacs.d/plugins/yasnippet/extras/imported"))
    (yas-global-mode 1)

Open some rails file (model, app, etc) and start using the textmate
snippets.  Note that in the example above we have abandoned the
default snippet collection on `~/.emacs.d/plugins/yasnippet/snippets`

# Documentation, issues, etc

Please refer to the comprehensive (albeit slightly outdated)
[documentation][docs] for full customization
and support.  If you find a bug, please report it on
[the GitHub issue tracker][issues].  (please **do not** submit new issues to the old
[googlecode tracker][googlecode tracker])

## Important note regarding bug reporting
If you think have found a bug, please report it clearly.  Yasnippet
does have (lots of) bugs and your reporting is very valuable. But I
have little time to analyse bugs and the following helps a lot.

So, *before* reporting try to reproduce the bug **without** your usual
`.emacs` (or whatever startup file you use). Do so either by starting
emacs from the command line with the `-Q` switch, or by temporarily
moving away your `.emacs` and creating a new smaller one just for
reproducing the bug.

Then paste that file, and describe steps taken to reproduce, from an
end-user perspective. Try to be as unambiguous as possible. Also,
don't forget to state the Emacs version (use `M-x emacs-version`) and
the yasnippet version you are using (if using the latest from github,
do `git log -1` in the dir).

Any more info is welcome, but don't just paste a backtrace or an error
message string you got. I'm not saying your analysis might not be
useful but following the instructions above immediately gives me a
clear picture of what is happening.

There's an example of a great bug report from
[issue #189](https://github.com/capitaomorte/yasnippet/issues/189)

There is also a [YASnippet google group][forum]. I will keep the group
open for reference and for discussion among users, unfortunately I
can't guarantee a timely response, so maybe creating a github issue
clearly marking your intent (user support/bug/feature request).

Finally, thank you very much for using YASnippet!

[docs]: http://capitaomorte.github.com/yasnippet/
[issues]: https://github.com/capitaomorte/yasnippet/issues
[googlecode tracker]: http://code.google.com/p/yasnippet/issues/list
[forum]: http://groups.google.com/group/smart-snippet
[melpa]: http://melpa.milkbox.net/