//
// condition_parser class
//
-// handles expresions of the form
+// handles expressions of the form
//
// epsilon_p(cond)
//
//
// handles expressions of the form
// epsilon_p(subject)
-// where subject is a parser. The expresion returns a composite
+// where subject is a parser. The expression returns a composite
// parser that returns an empty match if the subject parser matches.
//
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