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/* __ *\
** ________ ___ / / ___ Scala API **
** / __/ __// _ | / / / _ | (c) 2006-2009, LAMP/EPFL **
** __\ \/ /__/ __ |/ /__/ __ | http://scala-lang.org/ **
** /____/\___/_/ |_/____/_/ | | **
** |/ **
\* */
// $Id$
package scala.util.parsing.combinator.testing
import scala.util.parsing.combinator._
import scala.util.parsing.combinator.lexical.Lexical
import scala.util.parsing.combinator.syntactical.TokenParsers
/** <p>
* Facilitates testing a given parser on various input strings.
* </p>
* <p>
* Example use:
* </p><pre>
* <b>val</b> syntactic = <b>new</b> MyParsers</pre>
* <p>
* and
* </p><pre>
* <b>val</b> parser = syntactic.term</pre>
* <p>
* (if MyParsers extends TokenParsers with a parser called `term')
* </p>
*
* @author Martin Odersky, Adriaan Moors
*/
abstract class Tester {
val syntactic: TokenParsers { val lexical: Lexical }
val parser: syntactic.Parser[Any]
/** Scans a String (using a `syntactic.lexical.Scanner'), parses it
* using <code>phrase(parser)</code>, and prints the input and the
* parsed result to the console.
*/
def test(in: String) {
Console.println("\nin : "+in)
Console.println(syntactic.phrase[Any](parser)(new syntactic.lexical.Scanner(in)))
}
}
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