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
  • package descriptions

    This package contains the descriptions of various lexical structures to be fed to Lexer.

    This package contains the descriptions of various lexical structures to be fed to Lexer.

    Definition Classes
    token
    Since

    4.0.0

  • package errors
    Definition Classes
    token
  • package names

    This package contains the abstract parsers for parsing identifiers and operators.

    This package contains the abstract parsers for parsing identifiers and operators.

    Definition Classes
    token
    Since

    4.0.0

  • package numeric

    This package contains the abstract parsers for parsing numeric literals, like integers and reals.

    This package contains the abstract parsers for parsing numeric literals, like integers and reals.

    Definition Classes
    token
    Since

    4.0.0

  • Lexer
  • predicate
  • package symbol

    This package contains the abstract parsers for parsing symbolic tokens like keywords.

    This package contains the abstract parsers for parsing symbolic tokens like keywords.

    Definition Classes
    token
    Since

    4.0.0

  • package text

    This package contains the abstract parsers for parsing string and character literals.

    This package contains the abstract parsers for parsing string and character literals.

    Definition Classes
    token
    Since

    4.0.0

o

parsley.token

predicate

object predicate

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

Source
predicate.scala
Since

4.0.0

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Type Members

  1. final case class Basic(predicate: (Char) ⇒ Boolean) extends CharPredicate with Product with Serializable

    Basic character predicate, which reads regular Scala 16-bit characters.

    Basic character predicate, which reads regular Scala 16-bit characters.

    This predicate is only capable of recognising characters within the Basic Multilingual Plane.

    Since

    4.0.0

  2. sealed abstract class CharPredicate extends AnyRef

    Base class for character predicates.

    Base class for character predicates.

    Since

    4.0.0

  3. final case class Unicode(predicate: (Int) ⇒ Boolean) extends CharPredicate with Product with Serializable

    More generic character predicate, which reads any unicode codepoint.

    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.

    Since

    4.0.0

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
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  5. def clone(): AnyRef
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    @throws( ... ) @native()
  6. final def eq(arg0: AnyRef): Boolean
    Definition Classes
    AnyRef
  7. def equals(arg0: Any): Boolean
    Definition Classes
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  8. def finalize(): Unit
    Attributes
    protected[lang]
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    @throws( classOf[java.lang.Throwable] )
  9. final def getClass(): Class[_]
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  10. def hashCode(): Int
    Definition Classes
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  11. final def isInstanceOf[T0]: Boolean
    Definition Classes
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  12. final def ne(arg0: AnyRef): Boolean
    Definition Classes
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  13. final def notify(): Unit
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  14. final def notifyAll(): Unit
    Definition Classes
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  15. final def synchronized[T0](arg0: ⇒ T0): T0
    Definition Classes
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  16. def toString(): String
    Definition Classes
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  17. final def wait(): Unit
    Definition Classes
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    @throws( ... )
  18. final def wait(arg0: Long, arg1: Int): Unit
    Definition Classes
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  19. final def wait(arg0: Long): Unit
    Definition Classes
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    @throws( ... ) @native()
  20. object NotRequired extends CharPredicate with Product with Serializable

    Character predicate that never succeeds.

    Character predicate that never succeeds.

    Since

    4.0.0

Inherited from AnyRef

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