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+# http://elixir-lang.org
+# ----------------------
+
+# Detection
+# ‾‾‾‾‾‾‾‾‾
+
+hook global BufCreate .*[.](ex|exs) %{
+    set-option buffer filetype elixir
+}
+
+hook global BufCreate .*[.]html[.]l?eex %{
+    set-option buffer filetype eex
+}
+
+# Initialization
+# ‾‾‾‾‾‾‾‾‾‾‾‾‾‾
+
+hook global WinSetOption filetype=elixir %{
+    require-module elixir
+
+    hook window ModeChange pop:insert:.* -group elixir-trim-indent elixir-trim-indent
+    hook window InsertChar \n -group elixir-indent elixir-indent-on-new-line
+    hook window InsertChar \n -group elixir-insert elixir-insert-on-new-line
+
+    hook -once -always window WinSetOption filetype=.* %{ remove-hooks window elixir-.+ }
+}
+
+hook -group elixir-highlight global WinSetOption filetype=elixir %{
+    add-highlighter window/elixir ref elixir
+    hook -once -always window WinSetOption filetype=.* %{ remove-highlighter window/elixir }
+}
+
+hook global WinSetOption filetype=eex %{
+    require-module eex
+
+    hook -once -always window WinSetOption filetype=.* %{ remove-hooks window eex-.+ }
+}
+
+hook -group eex-highlight global WinSetOption filetype=eex %{
+    add-highlighter window/eex ref eex
+    hook -once -always window WinSetOption filetype=.* %{ remove-highlighter window/eex }
+}
+
+provide-module eex %{
+require-module html
+require-module elixir
+
+add-highlighter shared/eex regions
+add-highlighter shared/eex/html default-region ref html
+add-highlighter shared/eex/comment region '<%#' '%>' fill comment
+add-highlighter shared/eex/quote region '<%%' '%>' ref html
+add-highlighter shared/eex/code region '<%=?' '%>' ref elixir
+}
+
+provide-module elixir %[
+
+# Highlighters
+# ‾‾‾‾‾‾‾‾‾‾‾‾
+
+add-highlighter shared/elixir regions
+add-highlighter shared/elixir/code default-region group
+add-highlighter shared/elixir/double_string region -match-capture ("""|") (?<!\\)(?:\\\\)*("""|") regions
+add-highlighter shared/elixir/single_string region "'" "(?<!\\)(?:\\\\)*'" fill string
+add-highlighter shared/elixir/comment region '#' '$' fill comment
+
+add-highlighter shared/elixir/leex region -match-capture '~L("""|")' '(?<!\\)(?:\\\\)*("""|")' ref eex
+
+add-highlighter shared/elixir/double_string/base default-region fill string
+add-highlighter shared/elixir/double_string/interpolation region -recurse \{ \Q#{ \} fill builtin
+
+add-highlighter shared/elixir/code/ regex ':[\w_]+\b' 0:type
+add-highlighter shared/elixir/code/ regex '[\w_]+:' 0:type
+add-highlighter shared/elixir/code/ regex '[A-Z][\w_]+\b' 0:module
+add-highlighter shared/elixir/code/ regex '(:[\w_]+)(\.)' 1:module
+add-highlighter shared/elixir/code/ regex '\b_\b' 0:default
+add-highlighter shared/elixir/code/ regex '\b_[\w_]+\b' 0:default
+add-highlighter shared/elixir/code/ regex '~[a-zA-Z]\(.*?[^\\]\)' 0:string
+add-highlighter shared/elixir/code/ regex \b(true|false|nil)\b 0:value
+add-highlighter shared/elixir/code/ regex (->|<-|<<|>>|=>) 0:builtin
+add-highlighter shared/elixir/code/ regex \b(require|alias|use|import)\b 0:keyword
+add-highlighter shared/elixir/code/ regex \b(__MODULE__|__DIR__|__ENV__|__CALLER__)\b 0:value
+add-highlighter shared/elixir/code/ regex \b(def|defp|defmacro|defmacrop|defstruct|defmodule|defimpl|defprotocol|defoverridable)\b 0:keyword
+add-highlighter shared/elixir/code/ regex \b(fn|do|end|when|case|if|else|unless|var!|for|cond|quote|unquote|receive|with|raise|reraise|try|catch)\b 0:keyword
+add-highlighter shared/elixir/code/ regex '@[\w_]+\b' 0:attribute
+add-highlighter shared/elixir/code/ regex '\b\d+[\d_]*\b' 0:value
+
+# Commands
+# ‾‾‾‾‾‾‾‾
+
+define-command -hidden elixir-trim-indent %{
+    # remove trailing white spaces
+    try %{ execute-keys -draft -itersel x s \h+$ <ret> d }
+}
+
+define-command -hidden elixir-insert-on-new-line %[
+    evaluate-commands -no-hooks -draft -itersel %[
+        # copy '#' comment prefix and following white spaces
+        try %{ execute-keys -draft k x s ^\h*\K#\h* <ret> y jgi P }
+        # wisely add end structure
+        evaluate-commands -save-regs x %[
+            try %{ execute-keys -draft k x s ^ \h + <ret> \" x y } catch %{ reg x '' }
+            try %[
+                evaluate-commands -draft %[
+                    # Check if previous line opens a block
+                    execute-keys -draft kx <a-k>^<c-r>x(.+\bdo$)<ret>
+                    # Check that we do not already have an end for this indent level which is first set via `elixir-indent-on-new-line` hook
+                    execute-keys -draft }i J x <a-K> ^<c-r>x(end|else)[^0-9A-Za-z_!?]<ret>
+                ]
+                execute-keys -draft o<c-r>xend<esc> # insert a new line with containing end
+            ]
+        ]
+    ]
+]
+
+define-command -hidden elixir-indent-on-new-line %{
+    evaluate-commands -draft -itersel %{
+        # preserve previous line indent
+        try %{ execute-keys -draft <semicolon> K <a-&> }
+        # indent after line ending with:
+        # try %{ execute-keys -draft k x <a-k> (\bdo|\belse|->)$ <ret> & }
+        # filter previous line
+        try %{ execute-keys -draft k : elixir-trim-indent <ret> }
+        # indent after lines ending with do or ->
+        try %{ execute-keys -draft <semicolon> k x <a-k> ^.+(\bdo|->)$ <ret> j <a-gt> }
+    }
+}
+
+]