Reader

@implicitNotFound("No Reader[${A}] found. A reader is required to parse a command line argument from a string to a ${A}. ".+("Please define a Reader[${A}].")) trait Reader[A]

A typeclass that defines how to convert a string from a single command line argument to a given type.

Companion: object

class Object

trait Matchable

class Any

object BooleanReader

object DoubleReader

object DurationReader

object FiniteDurationReader

object FloatReader

trait FsPathReader[A]

object FilePathReader

object JavaFileReader

object JavaPathReader

object PathReader

object RelPathReader

object SubPathReader

object InputStreamReader

object InstantReader

object LocalDateReader

object LocalDateTimeReader

object LocalTime

object OutputStreamReader

object RangeReader

object ReadableReader

object ZonedDateTimeReader

Value members

Abstract methods

Either convert the string to A or return a failure message.

Do not throw from a reader, as it will cause the argument parser to crash, leading to a horrible user experience.

The human-friendly name of this reader's argument type.

Concrete methods

Compute available shell completions starting with a given string. This is used by interactive bash completion, where the user program is responsible for generating completions.

A completer for bash. This is used by standalone bash completion, where a bash script generates completion, without the involvement of the the user program.

If your program is implemented with Scala on the JVM, the startup time is considerable and hence standalone completion should be preferred for a snappy user experience.