Packages

  • package root
    Definition Classes
    root
  • package parsley
    Definition Classes
    root
  • package token

    This package provides a wealth of functionality for performing common lexing tasks.

    This package provides a wealth of functionality for performing common lexing tasks.

    It is organised as follows:

    • the main parsing functionality is accessed via Lexer, which provides implementations for the combinators found in the sub-packages given a LexicalDesc.
    • the descriptions sub-package is how a lexical structure can be described, providing the configuration that alters the behaviour of the parsers produced by the Lexer.
    • the other sub-packages contain the high-level interfaces that the Lexer exposes, which can be used to pass whitespace-aware and non-whitespace-aware combinators around in a uniform way.
    • the predicate module contains functionality to help define boolean predicates on characters or unicode codepoints.
    Definition Classes
    parsley
  • object predicate

    This module contains functionality to describe character predicates, which can be used to determine what characters are valid for different tokens.

    This module contains functionality to describe character predicates, which can be used to determine what characters are valid for different tokens.

    Definition Classes
    token
    Since

    4.0.0

  • Basic
  • CharPredicate
  • NotRequired
  • Unicode

final case class Unicode(predicate: (Int) => Boolean) extends CharPredicate with Product with Serializable

More generic character predicate, which reads any unicode codepoint.

Full unicode characters can be up to 24-bits, which is handled by a 32-bit number on the JVM. This predicate can be used, therefore, to handle any single unicode codepoint: this excludes multi-codepoint characters like flags, or modified emojis.

In Scala, characters can be upcast to integers, so still can be used in the description of this predicate.

Source
predicate.scala
Since

4.0.0

Linear Supertypes
Serializable, Product, Equals, CharPredicate, AnyRef, Any
Ordering
  1. Alphabetic
  2. By Inheritance
Inherited
  1. Unicode
  2. Serializable
  3. Product
  4. Equals
  5. CharPredicate
  6. AnyRef
  7. Any
  1. Hide All
  2. Show All
Visibility
  1. Public
  2. Protected

Instance Constructors

  1. new Unicode(predicate: (Int) => Boolean)

Value Members

  1. final def !=(arg0: Any): Boolean
    Definition Classes
    AnyRef → Any
  2. final def ##: Int
    Definition Classes
    AnyRef → Any
  3. final def ==(arg0: Any): Boolean
    Definition Classes
    AnyRef → Any
  4. final def asInstanceOf[T0]: T0
    Definition Classes
    Any
  5. def clone(): AnyRef
    Attributes
    protected[lang]
    Definition Classes
    AnyRef
    Annotations
    @throws(classOf[java.lang.CloneNotSupportedException]) @native()
  6. final def eq(arg0: AnyRef): Boolean
    Definition Classes
    AnyRef
  7. def finalize(): Unit
    Attributes
    protected[lang]
    Definition Classes
    AnyRef
    Annotations
    @throws(classOf[java.lang.Throwable])
  8. final def getClass(): Class[_ <: AnyRef]
    Definition Classes
    AnyRef → Any
    Annotations
    @native()
  9. final def isInstanceOf[T0]: Boolean
    Definition Classes
    Any
  10. final def ne(arg0: AnyRef): Boolean
    Definition Classes
    AnyRef
  11. final def notify(): Unit
    Definition Classes
    AnyRef
    Annotations
    @native()
  12. final def notifyAll(): Unit
    Definition Classes
    AnyRef
    Annotations
    @native()
  13. val predicate: (Int) => Boolean
  14. def productElementNames: Iterator[String]
    Definition Classes
    Product
  15. final def synchronized[T0](arg0: => T0): T0
    Definition Classes
    AnyRef
  16. final def wait(): Unit
    Definition Classes
    AnyRef
    Annotations
    @throws(classOf[java.lang.InterruptedException])
  17. final def wait(arg0: Long, arg1: Int): Unit
    Definition Classes
    AnyRef
    Annotations
    @throws(classOf[java.lang.InterruptedException])
  18. final def wait(arg0: Long): Unit
    Definition Classes
    AnyRef
    Annotations
    @throws(classOf[java.lang.InterruptedException]) @native()

Inherited from Serializable

Inherited from Product

Inherited from Equals

Inherited from CharPredicate

Inherited from AnyRef

Inherited from Any

Ungrouped