diff --git a/rc/extra/pony.kak b/rc/extra/pony.kak
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+++ b/rc/extra/pony.kak
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+# http://ponylang.org
+# ‾‾‾‾‾‾‾‾‾‾‾‾‾‾‾‾‾
+
+# Detection
+# ‾‾‾‾‾‾‾‾‾
+
+hook global BufCreate .*[.](pony) %{
+    set buffer filetype pony
+}
+
+hook global BufOpen .*[.](pony) %{
+    set buffer filetype pony
+	echo -debug "BufOpen"
+}
+
+hook global BufNew .*[.](pony) %{
+    set buffer filetype pony
+}
+
+# Highlighters & Completion
+# ‾‾‾‾‾‾‾‾‾‾‾‾‾‾‾‾‾‾‾‾‾‾‾‾‾
+
+addhl -group / regions -default code pony \
+    double_string '"""' '"""'            '' \
+    double_string '"'   (?<!\\)(\\\\)*"  '' \
+    comment       '/\*'   '\*/'            '' \
+    comment       '//'   '$'             ''
+
+addhl -group /pony/double_string fill string
+# addhl -group /pony/single_string fill string
+addhl -group /pony/comment       fill comment
+
+
+%sh{
+    # Grammar
+    values="true|false|None|this"
+    meta='use'
+    # Keyword list is collected using `keyword.kwlist` from `keyword`
+    keywords="and|as|or|break|match|continue|else|try|in|return|end|for|is"
+    keywords="${keywords}|recover|consume|error|do|then|if|while"
+    func_decl="new|fun|be|lambda"
+    capabilities="iso|ref|box|tag|val|trn"
+    type_decl="class|actor|interface|trait|primitive|type"
+    struct="${type_decl}|var|let|embed"
+
+
+    # Add the language's grammar to the static completion list
+    static_words="${values}:${meta}:${keywords}:${types_decl}:${capabilities}"
+    static_words="${static_words}:${type_decl}:${struct}"
+    printf %s\\n "hook global WinSetOption filetype=pony %{
+        set window static_words '${static_words}'
+    }" | sed 's,|,:,g'
+
+    # Highlight keywords
+    printf %s "
+        addhl -group /pony/code regex '\b(${values})\b' 0:value
+        addhl -group /pony/code regex '\b(${meta})\b' 0:meta
+        addhl -group /pony/code regex '\b(${func_decl})(\s+(${capabilities}))?(\s+\w+)\(' 1:type 3:builtin 4:builtin
+        addhl -group /pony/code regex '\b(${func_decl})\b' 0:type
+        addhl -group /pony/code regex '=>' 0:type
+        addhl -group /pony/code regex '\b(${keywords})\b' 0:keyword
+        addhl -group /pony/code regex ';' 0:keyword
+        addhl -group /pony/code regex '^\s*|' 0:keyword
+        addhl -group /pony/code regex '\b(${type_decl})\b' 0:identifier
+        addhl -group /pony/code regex '\b(${struct})\b' 0:identifier
+        addhl -group /pony/code regex '\b(${capabilities})\b(!|^)?' 1:builtin 2:builtin
+    "
+
+    # Highlight types and attributes
+    printf %s "
+        addhl -group /pony/code regex '@[\w_]+\b' 0:attribute
+    "
+}
+
+# Commands
+# ‾‾‾‾‾‾‾‾
+
+def -hidden pony-indent-on-new-line %{
+    eval -draft -itersel %{
+        # preserve previous line indent
+        try %{ exec -draft <space> K <a-&> }
+        # cleanup trailing whitespaces from previous line
+        try %{ exec -draft k <a-x> s \h+$ <ret> d }
+        # copy '//' comment prefix and following white spaces
+        # try %{ exec -draft k x s ^\h*//\h* <ret> y jgh P }
+        # indent after line ending with :
+        try %{ exec -draft <space> k x <a-k> (do|try|then|else|=>)$ <ret> j <a-gt> }
+        # else, end are always de-indented
+        try %{ exec -draft <space> k x <a-k> (else|end):$ <ret> k x s ^\h* <ret> y j x <a-k> ^<c-r>" <ret> J <a-lt> }
+    }
+}
+
+# Initialization
+# ‾‾‾‾‾‾‾‾‾‾‾‾‾‾
+
+hook -group pony-highlight global WinSetOption filetype=pony %{ addhl ref pony }
+
+hook global WinSetOption filetype=pony %{
+    hook window InsertChar \n -group pony-indent pony-indent-on-new-line
+    # cleanup trailing whitespaces on current line insert end
+    hook window InsertEnd .* -group pony-indent %{ try %{ exec -draft \; <a-x> s ^\h+$ <ret> d } }
+}
+
+hook global WinSetOption filetype=pony %{
+    set buffer tabstop 2
+    set buffer indentwidth 2
+}
+
+hook -group pony-highlight global WinSetOption filetype=(?!pony).* %{ rmhl pony }
+
+hook global WinSetOption filetype=(?!pony).* %{
+    rmhooks window pony-indent
+}