Ruby: Add keywords "protected", "private" and "public"

components/prism-ruby.js

@@ -10,7 +10,7 @@
 			/#(?!\{[^\r\n]*?\}).*/,
 			/^=begin(?:\r?\n|\r)(?:.*(?:\r?\n|\r))*?=end/m
 		],
-		'keyword': /\b(?:alias|and|BEGIN|begin|break|case|class|def|define_method|defined|do|each|else|elsif|END|end|ensure|false|for|if|in|module|new|next|nil|not|or|raise|redo|require|rescue|retry|return|self|super|then|throw|true|undef|unless|until|when|while|yield)\b/
+		'keyword': /\b(?:alias|and|BEGIN|begin|break|case|class|def|define_method|defined|do|each|else|elsif|END|end|ensure|false|for|if|in|module|new|next|nil|not|or|protected|private|public|raise|redo|require|rescue|retry|return|self|super|then|throw|true|undef|unless|until|when|while|yield)\b/
 	});
 
 	var interpolation = {

tests/languages/ruby/keyword_feature.test

@@ -1,37 +1,101 @@
-alias and BEGIN begin
-break case
+alias
+and
+BEGIN
+begin
+break
+case
 class;
 def
-define_method defined
-do each else elsif
-END end ensure false
-for if in module
+define_method
+defined
+do
+each
+else
+elsif
+END
+end
+ensure
+false
+for
+if
+in
+module
 new;
-next nil not
-or raise redo require
-rescue retry return
-self super then throw
-true undef unless until
-when while yield
+next
+nil
+not
+or
+protected
+private
+public
+raise
+redo
+require
+rescue
+retry
+return
+self
+super
+then
+throw
+true
+undef
+unless
+until
+when
+while
+yield
 
 ----------------------------------------------------
 
 [
-	["keyword", "alias"], ["keyword", "and"], ["keyword", "BEGIN"], ["keyword", "begin"],
-	["keyword", "break"], ["keyword", "case"],
+	["keyword", "alias"],
+	["keyword", "and"],
+	["keyword", "BEGIN"],
+	["keyword", "begin"],
+	["keyword", "break"],
+	["keyword", "case"],
 	["keyword", "class"], ["punctuation", ";"],
 	["keyword", "def"],
-	["keyword", "define_method"], ["keyword", "defined"],
-	["keyword", "do"], ["keyword", "each"], ["keyword", "else"], ["keyword", "elsif"],
-	["keyword", "END"], ["keyword", "end"], ["keyword", "ensure"], ["keyword", "false"],
-	["keyword", "for"], ["keyword", "if"], ["keyword", "in"], ["keyword", "module"],
+	["keyword", "define_method"],
+	["keyword", "defined"],
+	["keyword", "do"],
+	["keyword", "each"],
+	["keyword", "else"],
+	["keyword", "elsif"],
+	["keyword", "END"],
+	["keyword", "end"],
+	["keyword", "ensure"],
+	["keyword", "false"],
+	["keyword", "for"],
+	["keyword", "if"],
+	["keyword", "in"],
+	["keyword", "module"],
 	["keyword", "new"], ["punctuation", ";"],
-	["keyword", "next"], ["keyword", "nil"], ["keyword", "not"],
-	["keyword", "or"], ["keyword", "raise"], ["keyword", "redo"], ["keyword", "require"],
-	["keyword", "rescue"], ["keyword", "retry"], ["keyword", "return"],
-	["keyword", "self"], ["keyword", "super"], ["keyword", "then"], ["keyword", "throw"],
-	["keyword", "true"], ["keyword", "undef"], ["keyword", "unless"], ["keyword", "until"],
-	["keyword", "when"], ["keyword", "while"], ["keyword", "yield"]
+	["keyword", "next"],
+	["keyword", "nil"],
+	["keyword", "not"],
+	["keyword", "or"],
+	["keyword", "protected"],
+	["keyword", "private"],
+	["keyword", "public"],
+	["keyword", "raise"],
+	["keyword", "redo"],
+	["keyword", "require"],
+	["keyword", "rescue"],
+	["keyword", "retry"],
+	["keyword", "return"],
+	["keyword", "self"],
+	["keyword", "super"],
+	["keyword", "then"],
+	["keyword", "throw"],
+	["keyword", "true"],
+	["keyword", "undef"],
+	["keyword", "unless"],
+	["keyword", "until"],
+	["keyword", "when"],
+	["keyword", "while"],
+	["keyword", "yield"]
 ]
 
 ----------------------------------------------------