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Scala example source code file (StdTokens.scala)

This example Scala source code file (StdTokens.scala) is included in the DevDaily.com "Java Source Code Warehouse" project. The intent of this project is to help you "Learn Java by Example" TM.

Java - Scala tags/keywords

identifier, identifier, keyword, keyword, numericlit, stdtokens, string, string, stringlit, token, token, tokens

The Scala StdTokens.scala source code

/*                     __                                               *\
**     ________ ___   / /  ___     Scala API                            **
**    / __/ __// _ | / /  / _ |    (c) 2006-2011, LAMP/EPFL             **
**  __\ \/ /__/ __ |/ /__/ __ |                                         **
** /____/\___/_/ |_/____/_/ | |                                         **
**                          |/                                          **
\*                                                                      */

package scala.util.parsing
package combinator
package token

/** This component provides the standard `Token's for a simple, Scala-like language. 
 *
 * @author Martin Odersky, Adriaan Moors
 */
trait StdTokens extends Tokens {
  /** The class of keyword tokens */
  case class Keyword(chars: String) extends Token {
    override def toString = "`"+chars+"'"
  }

  /** The class of numeric literal tokens */
  case class NumericLit(chars: String) extends Token {
    override def toString = chars
  }

  /** The class of string literal tokens */
  case class StringLit(chars: String) extends Token {
    override def toString = "\""+chars+"\""
  }    

  /** The class of identifier tokens */
  case class Identifier(chars: String) extends Token {
    override def toString = "identifier "+chars
  }
}

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