Trait

org.rogach.scallop

ValueConverter

Related Doc: package scallop

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trait ValueConverter[A] extends AnyRef

Converter from list of plain strings to something meaningful.

Self Type
ValueConverter[A]
Source
ValueConverter.scala
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Abstract Value Members

  1. abstract val argType: V

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    Type of parsed argument list.

  2. abstract def parse(s: List[(String, List[String])]): Either[String, Option[A]]

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    Takes a list of arguments to all option invocations: for example, "-a 1 2 -a 3 4 5" would produce List(("a",List(1,2)),("a",List(3,4,5))).

    Takes a list of arguments to all option invocations: for example, "-a 1 2 -a 3 4 5" would produce List(("a",List(1,2)),("a",List(3,4,5))).

    • parse returns Left, if there was an error while parsing.
    • if no option was found, it returns Right(None).
    • if option was found, it returns Right(...).

Concrete Value Members

  1. final def !=(arg0: Any): Boolean

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  2. final def ##(): Int

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  3. final def ==(arg0: Any): Boolean

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  4. def argFormat(name: String): String

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    Transformation of argument name to argument definition in help.

  5. final def asInstanceOf[T0]: T0

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  6. def clone(): AnyRef

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    protected[java.lang]
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  7. final def eq(arg0: AnyRef): Boolean

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  8. def equals(arg0: Any): Boolean

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  9. def finalize(): Unit

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    Attributes
    protected[java.lang]
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    @throws( classOf[java.lang.Throwable] )

  10. def flatMap[B](fn: (A) ⇒ Either[String, Option[B]]): ValueConverter[B]

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    Map the converter to another value.

    Map the converter to another value. This method is different from .map because it can return an error (without resorting to exceptions, returning Left(msg)) or can filter out unsupported values (by returning Right(None)).

  11. final def getClass(): Class[_]

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  12. def hashCode(): Int

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  13. final def isInstanceOf[T0]: Boolean

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  14. def map[B](fn: (A) ⇒ B): ValueConverter[B]

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    Maps the converter to another value:

    Maps the converter to another value:

    intConverter.map(_+2) // and you get a "biased converter"

  15. final def ne(arg0: AnyRef): Boolean

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  16. final def notify(): Unit

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  17. final def notifyAll(): Unit

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  18. def parseCached(s: List[(String, List[String])]): Either[String, Option[A]]

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  19. final def synchronized[T0](arg0: ⇒ T0): T0

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  20. def toString(): String

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  21. final def wait(): Unit

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    @throws( ... )

  22. final def wait(arg0: Long, arg1: Int): Unit

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  23. final def wait(arg0: Long): Unit

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