diff --git a/rc/json.kak b/rc/json.kak
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+# http://json.org
+# ‾‾‾‾‾‾‾‾‾‾‾‾‾‾‾
+
+# Detection
+# ‾‾‾‾‾‾‾‾‾
+
+hook global BufSetOption mimetype=text/x-json %{
+    set buffer filetype json
+}
+
+hook global BufCreate .*[.](json) %{
+    set buffer filetype json
+}
+
+# Highlighters
+# ‾‾‾‾‾‾‾‾‾‾‾‾
+
+addhl -group / multi_region -default code json \
+    string '"' (?<!\\)(\\\\)*" ''
+
+addhl -group /json/string fill string
+
+addhl -group /json/code regex \<(true|false|null)\> 0:value
+
+# Commands
+# ‾‾‾‾‾‾‾‾
+
+def -hidden _json_filter_around_selections %{
+    eval -draft -itersel %{
+        exec <a-x>
+        # remove trailing white spaces
+        try %{ exec -draft s \h+$ <ret> d }
+    }
+}
+
+def -hidden _json_indent_on_char "
+    eval -draft -itersel '
+        # indent closer token to its opener
+        try %_ exec -draft gh <a-k> ^\h*[]}] <ret> m <a-&> _
+    '
+"
+
+def -hidden _json_indent_on_new_line "
+    eval -draft -itersel '
+        # preserve previous line indent
+        try %{ exec -draft <space> K <a-&> }
+        # filter previous line
+        try %{ exec -draft k : _json_filter_around_selections <ret> }
+        # indent after lines beginning with opener token
+        try %_ exec -draft k x <a-k> ^\h*[[{] <ret> j <a-gt> _
+    '
+"
+
+# Initialization
+# ‾‾‾‾‾‾‾‾‾‾‾‾‾‾
+
+hook global WinSetOption filetype=json %{
+    addhl ref json
+
+    hook window InsertEnd  .* -group json-hooks  _json_filter_around_selections
+    hook window InsertChar .* -group json-indent _json_indent_on_char
+    hook window InsertChar \n -group json-indent _json_indent_on_new_line
+}
+
+hook global WinSetOption filetype=(?!json).* %{
+    rmhl json
+    rmhooks window json-indent
+    rmhooks window json-hooks
+}