Install yasnippet and vala-snippets packages

elpa/yasnippet-20160924.2001/snippets/scala-mode/app

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+# -*- mode: snippet -*-
+#Author : Anders Bach Nielsen <andersbach.nielsen@epfl.ch>
+#name : object name extends App
+# key: app
+# --
+object ${1:name} extends App {
+  $0
+}

elpa/yasnippet-20160924.2001/snippets/scala-mode/case

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+# -*- mode: snippet -*-
+#Author : Jonas Bonèr <jonas@jonasboner.com>
+#name : case pattern => 
+# key: case
+# --
+case ${1:_} => $0

elpa/yasnippet-20160924.2001/snippets/scala-mode/cc

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+# -*- mode: snippet -*-
+#Author : Sam Halliday
+#name : case class T(arg: A)
+# key: cc
+# --
+case class ${1:Name}(
+  ${2:arg}: ${3:Type}
+)

elpa/yasnippet-20160924.2001/snippets/scala-mode/co

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+# -*- mode: snippet -*-
+#Author : Jonas Bonèr <jonas@jonasboner.com>
+#name : case object T
+# key: co
+# --
+case object ${1:name} $0

elpa/yasnippet-20160924.2001/snippets/scala-mode/cons

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+# -*- mode: snippet -*-
+#Author : Jonas Bonèr <jonas@jonasboner.com>
+#name : element1 :: element2
+# key: cons
+# --
+${1:element1} :: ${2:element2} $0

elpa/yasnippet-20160924.2001/snippets/scala-mode/def

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+# -*- mode: snippet -*-
+#Author : Jonas Bonèr <jonas@jonasboner.com>
+#name : def f(arg: T): R = {...}
+# key: def
+# --
+def ${1:name}(${2:args}): ${3:Unit} = {
+  $0
+}

elpa/yasnippet-20160924.2001/snippets/scala-mode/doc

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+# -*- mode: snippet -*-
+#Author : Anders Bach Nielsen <andersbach.nielsen@epfl.ch>
+#name : /** ... */
+# key: doc
+# --
+/**
+ * ${1:description}
+ * $0
+ */

elpa/yasnippet-20160924.2001/snippets/scala-mode/for

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+# -*- mode: snippet -*-
+#Author : Sam Halliday
+#name : for { x <- xs } yield
+#key: for
+# --
+for {
+  ${1:x} <- ${2:xs}
+} yield ${3:x}

elpa/yasnippet-20160924.2001/snippets/scala-mode/if

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+# -*- mode: snippet -*-
+#Author : Jonas Bonèr <jonas@jonasboner.com>
+#name : if (cond) { .. }
+# key: if
+# --
+if (${1:condition}) {
+  $0
+}

elpa/yasnippet-20160924.2001/snippets/scala-mode/ls

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+# -*- mode: snippet -*-
+#Author : Jonas Bonèr <jonas@jonasboner.com>
+#name : List(..)
+# key: ls
+# --
+List(${1:args}, ${2:args}) $0

elpa/yasnippet-20160924.2001/snippets/scala-mode/main

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+# -*- mode: snippet -*-
+#Author : Jonas Bonèr <jonas@jonasboner.com>
+#name: def main(args: Array[String]) = { ... }
+# key: main
+# --
+def main(args: Array[String]) = {
+  $0
+}

elpa/yasnippet-20160924.2001/snippets/scala-mode/match

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+# -*- mode: snippet -*-
+#Author : Jonas Bonèr <jonas@jonasboner.com>
+#name : cc match { .. }
+# key: match
+# --
+${1:cc} match {
+  case ${2:pattern} => $0
+}

elpa/yasnippet-20160924.2001/snippets/scala-mode/ob

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+# -*- mode: snippet -*-
+#Author : Jonas Bonèr <jonas@jonasboner.com>
+#name : object name extends T
+# key: ob
+# --
+object ${1:name} extends ${2:type} $0

elpa/yasnippet-20160924.2001/snippets/scala-mode/throw

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+# -*- mode: snippet -*-
+#Author : Jonas Bonèr <jonas@jonasboner.com>
+#name : throw new Exception
+# key: throw
+# --
+throw new ${1:Exception}(${2:msg}) $0

elpa/yasnippet-20160924.2001/snippets/scala-mode/try

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+# -*- mode: snippet -*-
+#Author : Sam Halliday
+#name : try { .. } catch { case e => ..}
+# key: try
+# --
+try {
+  $0
+} catch {
+  case e: ${1:Throwable} => 
+    ${2:// TODO: handle exception}
+}

elpa/yasnippet-20160924.2001/snippets/scala-mode/valueclass

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+# -*- mode: snippet -*-
+# Author: Michael Pollmeier
+# name: value class
+# key: vc
+# --
+case class ${1:Name}(value: ${2:Type}) extends AnyVal