Merge pull request #174 from rodrigues/elixir-queries

Update Elixir Highlights

Author: jsmestad

queries/elixir/highlights.scm

@@ -0,0 +1,206 @@
+; Reserved keywords
+
+; TODO: handle not in
+["when" "and" "or" "not" "in" "fn" "do" "end" "catch" "rescue" "after" "else"] @keyword
+
+; Interpolation
+
+(interpolation
+ "#{" @punctuation.special
+ (_) @embedded
+ "}" @punctuation.special)
+
+; Operators
+
+; * doc string
+(unary_operator
+  operator: "@" @attribute
+  operand: (call
+    target: (identifier) @doc.__attribute__
+    (arguments
+      [
+        (string) @doc
+        (charlist) @doc
+        (sigil
+          quoted_start: _ @doc
+          quoted_end: _ @doc) @doc
+        (boolean) @doc
+      ]))
+  (#match? @doc.__attribute__ "^(moduledoc|typedoc|doc)$"))
+
+; * module attribute
+(unary_operator
+  operator: "@" @attribute
+  operand: [
+    (identifier) @attribute
+    (call
+      target: (identifier) @attribute)
+    (boolean) @attribute
+    (nil) @attribute
+  ])
+
+; * capture operand
+(unary_operator
+  operator: "&"
+  operand: (integer) @operator)
+
+(operator_identifier) @operator
+
+(unary_operator
+  operator: _ @operator)
+
+(binary_operator
+  operator: _ @operator)
+
+(dot
+  operator: _ @operator)
+
+(stab_clause
+  operator: _ @operator)
+
+; Literals
+
+[
+  (boolean)
+  (nil)
+] @constant
+
+[
+  (integer)
+  (float)
+] @number
+
+(alias) @type
+
+(call
+  target: (dot
+    left: (atom) @type))
+
+(char) @constant
+
+; Quoted content
+
+(escape_sequence) @string.escape
+
+[
+  (atom)
+  (quoted_atom)
+  (keyword)
+  (quoted_keyword)
+] @constant
+
+[
+  (string)
+  (charlist)
+] @string
+
+; Note that we explicitly target sigil quoted start/end, so they are not overridden by delimiters
+
+(sigil
+  (sigil_name) @__name__
+  quoted_start: _ @string
+  quoted_end: _ @string
+  (#match? @__name__ "^[sS]$")) @string
+
+(sigil
+  (sigil_name) @__name__
+  quoted_start: _ @string.regex
+  quoted_end: _ @string.regex
+  (#match? @__name__ "^[rR]$")) @string.regex
+
+(sigil
+  (sigil_name) @__name__
+  quoted_start: _ @string.special
+  quoted_end: _ @string.special) @string.special
+
+; Calls
+
+; * definition keyword
+(call
+  target: (identifier) @keyword
+  (#match? @keyword "^(def|defdelegate|defexception|defguard|defguardp|defimpl|defmacro|defmacrop|defmodule|defn|defnp|defoverridable|defp|defprotocol|defstruct)$"))
+
+; * kernel or special forms keyword
+(call
+  target: (identifier) @keyword
+  (#match? @keyword "^(alias|case|cond|else|for|if|import|quote|raise|receive|require|reraise|super|throw|try|unless|unquote|unquote_splicing|use|with)$"))
+
+; * just identifier in function definition
+(call
+  target: (identifier) @keyword
+  (arguments
+    [
+      (call target: (identifier) @function)
+      (binary_operator
+        left: (call
+               target: (identifier) @function)
+        operator: "when")
+    ])
+  (#match? @keyword "^(def|defdelegate|defguard|defguardp|defmacro|defmacrop|defn|defnp|defp)$"))
+
+; * function call
+(call
+  target: [
+    ; local
+    (identifier) @function.call
+    ; remote
+    (dot
+      right: (identifier) @function.call)
+  ])
+
+; * pipe into identifier (definition)
+(call
+  target: (identifier) @keyword
+  (arguments
+    (binary_operator
+      operator: "|>"
+      right: (identifier) @variable))
+  (#match? @keyword "^(def|defdelegate|defguard|defguardp|defmacro|defmacrop|defn|defnp|defp)$"))
+
+; * pipe into identifier (function call)
+(binary_operator
+  operator: "|>"
+  right: (identifier) @function.call)
+
+; Identifiers
+
+; * special
+(
+  (identifier) @constant.builtin
+  (#match? @constant.builtin "^(__MODULE__|__DIR__|__ENV__|__CALLER__|__STACKTRACE__)$")
+)
+
+; * unused
+(
+  (identifier) @comment
+  (#match? @comment "^_")
+)
+
+; * regular
+(identifier) @variable
+
+; Comment
+
+(comment) @comment
+
+; Punctuation
+
+[
+ "%"
+] @punctuation
+
+[
+ ","
+ ";"
+] @punctuation.delimiter
+
+[
+  "("
+  ")"
+  "["
+  "]"
+  "{"
+  "}"
+  "<<"
+  ">>"
+] @punctuation.bracket