trait Reader[A] extends AnyRef
A typeclass that defines how to convert a string from a single command line argument to a given type.
- Annotations
- @implicitNotFound("Don't know how to read a ${A} from a command line argument. Try implementing your own cmdr.Reader[$A].")
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Abstract Value Members
- abstract def read(a: String): Either[String, A]
Either convert the string to A or return a failure message.
Either convert the string to A or return a failure message.
Note that throwing an exception from a reader will cause the parser to crash, leading to a horrible user experience.
Concrete Value Members
- final def !=(arg0: Any): Boolean
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- final def ##: Int
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- final def ==(arg0: Any): Boolean
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- final def asInstanceOf[T0]: T0
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- def clone(): AnyRef
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- protected[lang]
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- Annotations
- @throws(classOf[java.lang.CloneNotSupportedException]) @native() @HotSpotIntrinsicCandidate()
- def completer: String
Bash completion snippet for arguments of this type.
Bash completion snippet for arguments of this type.
Must be valid bash. The variable "$cur" may be assumed to contain the current word being completed.
Typically this would set COMPREPLY of compopt. E.g.
COMPREPLY=( $(compgen -W 'foo bar baz' -- "$cur") )- or -
compopt -o default
Leave blank for no completion.
- final def eq(arg0: AnyRef): Boolean
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- def equals(arg0: AnyRef): Boolean
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- final def getClass(): Class[_ <: AnyRef]
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- @native() @HotSpotIntrinsicCandidate()
- def hashCode(): Int
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- @native() @HotSpotIntrinsicCandidate()
- final def isInstanceOf[T0]: Boolean
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- final def ne(arg0: AnyRef): Boolean
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- final def notify(): Unit
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- @native() @HotSpotIntrinsicCandidate()
- final def notifyAll(): Unit
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- @native() @HotSpotIntrinsicCandidate()
- final def synchronized[T0](arg0: => T0): T0
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- def toString(): String
- Definition Classes
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- final def wait(arg0: Long, arg1: Int): Unit
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- @throws(classOf[java.lang.InterruptedException])
- final def wait(arg0: Long): Unit
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- @throws(classOf[java.lang.InterruptedException]) @native()
- final def wait(): Unit
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- @throws(classOf[java.lang.InterruptedException])
Deprecated Value Members
- def finalize(): Unit
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- protected[lang]
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- Annotations
- @throws(classOf[java.lang.Throwable]) @Deprecated
- Deprecated