Packages

  • package root
    Definition Classes
    root
  • package parsley
    Definition Classes
    root
  • package expr

    This package contains various functionality relating to the parsing of expressions..

    This package contains various functionality relating to the parsing of expressions..

    This includes the "chain" combinators, which tackle the left-recursion problem and allow for the parsing and combining of operators with values. It also includes functionality for constructing larger precedence tables, which may even vary the type of each layer in the table, allowing for strongly-typed expression parsing.

    Definition Classes
    parsley
  • Atoms
  • Fixity
  • GOps
  • InfixL
  • InfixN
  • InfixR
  • Ops
  • Postfix
  • Prec
  • Prefix
  • SOps
  • chain
  • infix
  • mixed
  • precedence

sealed abstract class Ops[-A, B] extends AnyRef

This class allows for the description of a single layer of operators in the precedence tree.

Describes the operators at a specific level in the precedence tree, such that these ops consume Bs, possibly As and produce Bs: this depends on the Fixity of the operators.

A

the base type consumed by the operators.

B

the type produced/consumed by the operators.

Source
Ops.scala
Since

2.2.0

Note

for less complex types Ops[A, A] is sufficient.

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