Rules and Grammars

• A grammar is a class that defines rules

  • grammar gram {
  • rule not ($rx) { <!$rx> }
  • rule identifier { <not before \d> \w+ }
  • rule \j { \c[LF] }
  • rule parse { ^ <identifier> \j $ }
  • }

• Use it like a method:

  • gram.parse($line);