add highlights and try filetype

quieries/highlight.scm

@@ -0,0 +1,59 @@
+; Keywords
+
+[
+	"input"
+	"output"
+	"filter"
+] @keyword
+
+((identifier) @keyword
+ (#match? @keyword "^(private|protected|public)$"))
+
+; Literals
+
+[
+  (string)
+  (bareword)
+] @string
+
+(regex) @string.special.regex
+(escape_sequence) @escape
+
+[
+  (number)
+] @number
+
+[
+  (nil)
+  (true)
+  (false)
+]@constant.builtin
+
+(interpolation
+  "%{" @punctuation.special
+  "}" @punctuation.special) @embedded
+
+(comment) @comment
+
+; Operators
+
+[
+"="
+"=>"
+"->"
+] @operator
+
+[
+  ","
+  ";"
+  "."
+] @punctuation.delimiter
+
+[
+  "("
+  ")"
+  "["
+  "]"
+  "{"
+  "}"
+] @punctuation.bracket