class RuboCop::Cop::Style::SymbolLiteral

:symbol
# good
:“symbol”
# bad
@example
Checks symbol literal syntax.

def on_sym(node) 

def on_sym(node)
  return unless /\A:["'][A-Za-z_]\w*["']\z/.match?(node.source)
  add_offense(node) { |corrector| corrector.replace(node, node.source.delete(%q('"))) }
end