SnipmateToYas

This gem converts SnipMate snippets into YASnippet snippets.

For a repository with already converted snippets please check yasnippet-vim-snippets.

This gem was built mostly to convert the vim-snippets library to a format compatible with Emacs but it works with any Snipmate snippet.

Here is how a sample taken from vim-snippets would be converted (note how the interpolation the code between backticks is handled):

snippet cla-
	class ${1:`substitute(vim_snippets#Filename(), '\(_\|^\)\(.\)', '\u\2', 'g')`} < DelegateClass(${2:ParentClass})
		def initialize(${3:args})
			super(${4:del_obj})

			${0}
		end
	end

and how it'll be converted to YASnippet

# name: cla-
# key: cla-
# --
class ${1:`(s-replace " " "" (s-titleized-words (file-name-base (or (buffer-file-name) ""))))`} < DelegateClass(${2:ParentClass})
	def initialize(${3:args})
		super(${4:del_obj})

		$0
	end
end

To install the library run:

$ gem install snipmate_to_yas

To convert a single snippet run:

$ snipmate_to_yas /snippets/folder/ruby.snippets /your-converted-snippets-folder

Or to convert all snippets run this simple shell script:

for f in $(find /snippets/folder -name '*.snippets' -type f); do
  mode_name=$(basename "$f" .snippets)
  snipmate_to_yas "$f" /your-converted-snippets-folder
done

In the emacs side you need YASnippet and s.el, which is required for some interpolations.

Also you need to load the converted snippets. To do this add the following to your Emacs init file:

(add-to-list 'yas-snippet-dirs "/your-converted-snippets-folder")

For more information in how to load snippets check the YASnippet docs.

Before using this it's important to know some differences between SnipMate and YASnippet.

Snipmate read multiple snippets from a single file while YASnippet use one folder per snippet with one snippet per file.

So suppose you'd convert the ruby snippets and the snippets file contained the following tow snippets:

# /my/vim/snippets/ruby.snippets

snippet enc
	# encoding: utf-8
snippet #!
	#!/usr/bin/env ruby
	# encoding: utf-8

the following files'd be generated:

/target/folder/ruby-mode/enc

# name: enc
# key: enc
# --
# encoding: utf-8

/target/folder/ruby-mode/#!

# name: #!
# key: #!
# --
#!/usr/bin/env ruby
# encoding: utf-8

The mode names are not always equal, for example in Vim we have the cpp-mode while in Emacs we have the c++-mode. So the snippets from a file called cpp.snippets would be saved in a folder called c++-mode and not cpp-mode.

The snippet interpolations in SnipMate use vim-script, while the interpolations in YASnippet use Elisp. This is handled by this script in a extremely simple way, but most interpolations should work. If you found some error please let me know.

Bug reports and pull requests are welcome on GitHub at https://github.com/cartolari/snipmate_to_yas

The gem is available as open source under the terms of the MIT License.