# File lib/addressable/template.rb, line 486 def variables @variables ||= (begin result = [] expansions, expansion_regexp = parse_template_pattern(pattern) expansions.each do |expansion| if expansion =~ OPERATOR_EXPANSION _, _, variables, _ = parse_template_expansion(expansion) result.concat(variables) else result << expansion[VARIABLE_EXPANSION, 1] end end result.uniq end) end