File: calc3.rex

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#
# calc3.rex
# lexical scanner definition for rex
#

class Calculator3 < Racc::Parser
macro
  BLANK         /\s+/
  DIGIT         /\d+/
rule
  /{{BLANK}}/
  /{{DIGIT}}/  { [:NUMBER, text.to_i] }
  /.|\n/       { [text, text] }
inner
end