lib/ebnf/base.rb in ebnf-2.4.0 vs lib/ebnf/base.rb in ebnf-2.5.0

@@ -1,6 +1,7 @@
 require 'strscan'
+require 'sxp' unless defined?(SXP)
 
 # Extended Bakus-Nour Form (EBNF), being the W3C variation is
 # originaly defined in the
 # [W3C XML 1.0 Spec](https://www.w3.org/TR/REC-xml/#sec-notation).
 #
@@ -150,10 +151,9 @@
             rule.orig = r
             @ast << rule
           end
         end
       when :sxp
-        require 'sxp' unless defined?(SXP)
         @ast = SXP::Reader::Basic.read(input).map {|e| Rule.from_sxp(e)}
       else
         raise "unknown input format #{format.inspect}"
       end
 
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