object zipped
This module provides alternatives to the f.lift(x, y)
syntax, (x, y).zipped(f)
, which works better with type inference.
Also enables a parameterless zipped
method, to pair an arbitrary number of parsers such that (p, q).zipped = p.zip(q)
.
Thanks to Andrei Gramescu and George Stacey for ensuring that these combinators even exist in the first place.
- Source
- zipped.scala
scala> import parsley.character.char scala> import parsley.implicits.zipped.{Zipped2, Zipped3} scala> case class Add(x: Int, y: Int) scala> val p = (char('a').as(4), char('b').as(5)).zipped(Add) scala> p.parse("ab") val res0 = Success(Add(4, 5)) scala> val q = (char('a').as(3), char('b').as(2), char('c').as(5)).zipped((x, y, z) => x * y + z) scala> q.parse("abc") val res1 = Success(11) scala> q.parse("ab") val res2 = Failure(..)
- Since
3.0.0
- Note
these methods are not lazy like the
lift
syntax orliftN
functions! Use the prefix~
combinator to make arguments lazy where necessary.
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- zipped
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implicit final
class
Zipped10[T1, T2, T3, T4, T5, T6, T7, T8, T9, T10] extends AnyVal
This class enables the
zipped
syntax on tuples of ten parsers. -
implicit final
class
Zipped11[T1, T2, T3, T4, T5, T6, T7, T8, T9, T10, T11] extends AnyVal
This class enables the
zipped
syntax on tuples of eleven parsers. -
implicit final
class
Zipped12[T1, T2, T3, T4, T5, T6, T7, T8, T9, T10, T11, T12] extends AnyVal
This class enables the
zipped
syntax on tuples of twelve parsers. -
implicit final
class
Zipped13[T1, T2, T3, T4, T5, T6, T7, T8, T9, T10, T11, T12, T13] extends AnyVal
This class enables the
zipped
syntax on tuples of thirteen parsers. -
implicit final
class
Zipped14[T1, T2, T3, T4, T5, T6, T7, T8, T9, T10, T11, T12, T13, T14] extends AnyVal
This class enables the
zipped
syntax on tuples of fourteen parsers. -
implicit final
class
Zipped15[T1, T2, T3, T4, T5, T6, T7, T8, T9, T10, T11, T12, T13, T14, T15] extends AnyVal
This class enables the
zipped
syntax on tuples of fifteen parsers. -
implicit final
class
Zipped16[T1, T2, T3, T4, T5, T6, T7, T8, T9, T10, T11, T12, T13, T14, T15, T16] extends AnyVal
This class enables the
zipped
syntax on tuples of sixteen parsers. -
implicit final
class
Zipped17[T1, T2, T3, T4, T5, T6, T7, T8, T9, T10, T11, T12, T13, T14, T15, T16, T17] extends AnyVal
This class enables the
zipped
syntax on tuples of seventeen parsers. -
implicit final
class
Zipped18[T1, T2, T3, T4, T5, T6, T7, T8, T9, T10, T11, T12, T13, T14, T15, T16, T17, T18] extends AnyVal
This class enables the
zipped
syntax on tuples of eighteen parsers. -
implicit final
class
Zipped19[T1, T2, T3, T4, T5, T6, T7, T8, T9, T10, T11, T12, T13, T14, T15, T16, T17, T18, T19] extends AnyVal
This class enables the
zipped
syntax on tuples of nineteen parsers. -
implicit final
class
Zipped2[T1, T2] extends AnyVal
This class enables the
zipped
syntax on pairs of two parsers. -
implicit final
class
Zipped20[T1, T2, T3, T4, T5, T6, T7, T8, T9, T10, T11, T12, T13, T14, T15, T16, T17, T18, T19, T20] extends AnyVal
This class enables the
zipped
syntax on tuples of twenty parsers. -
implicit final
class
Zipped21[T1, T2, T3, T4, T5, T6, T7, T8, T9, T10, T11, T12, T13, T14, T15, T16, T17, T18, T19, T20, T21] extends AnyVal
This class enables the
zipped
syntax on tuples of twenty-one parsers. -
implicit final
class
Zipped22[T1, T2, T3, T4, T5, T6, T7, T8, T9, T10, T11, T12, T13, T14, T15, T16, T17, T18, T19, T20, T21, T22] extends AnyVal
This class enables the
zipped
syntax on tuples of twenty-two parsers. -
implicit final
class
Zipped3[T1, T2, T3] extends AnyVal
This class enables the
zipped
syntax on tuples of three parsers. -
implicit final
class
Zipped4[T1, T2, T3, T4] extends AnyVal
This class enables the
zipped
syntax on tuples of four parsers. -
implicit final
class
Zipped5[T1, T2, T3, T4, T5] extends AnyVal
This class enables the
zipped
syntax on tuples of five parsers. -
implicit final
class
Zipped6[T1, T2, T3, T4, T5, T6] extends AnyVal
This class enables the
zipped
syntax on tuples of six parsers. -
implicit final
class
Zipped7[T1, T2, T3, T4, T5, T6, T7] extends AnyVal
This class enables the
zipped
syntax on tuples of seven parsers. -
implicit final
class
Zipped8[T1, T2, T3, T4, T5, T6, T7, T8] extends AnyVal
This class enables the
zipped
syntax on tuples of eight parsers. -
implicit final
class
Zipped9[T1, T2, T3, T4, T5, T6, T7, T8, T9] extends AnyVal
This class enables the
zipped
syntax on tuples of nine parsers.
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This is the documentation for Parsley.
Package structure
The parsley package contains the
Parsley
class, as well as theResult
,Success
, andFailure
types. In addition to these, it also contains the following packages and "modules" (a module is defined as being an object which mocks a package):parsley.Parsley
contains the bulk of the core "function-style" combinators.parsley.combinator
contains many helpful combinators that simplify some common parser patterns.parsley.character
contains the combinators needed to read characters and strings, as well as combinators to match specific sub-sets of characters.parsley.debug
contains debugging combinators, helpful for identifying faults in parsers.parsley.extension
contains syntactic sugar combinators exposed as implicit classes.parsley.expr
contains the following sub modules:parsley.expr.chain
contains combinators used in expression parsingparsley.expr.precedence
is a builder for expression parsers built on a precedence table.parsley.expr.infix
contains combinators used in expression parsing, but with more permissive types than their equivalents inchain
.parsley.expr.mixed
contains combinators that can be used for expression parsing, but where different fixities may be mixed on the same level: this is rare in practice.parsley.implicits
contains several implicits to add syntactic sugar to the combinators. These are sub-categorised into the following sub modules:parsley.implicits.character
contains implicits to allow you to use character and string literals as parsers.parsley.implicits.combinator
contains implicits related to combinators, such as the ability to make any parser into aParsley[Unit]
automatically.parsley.implicits.lift
enables postfix application of the lift combinator onto a function (or value).parsley.implicits.zipped
enables boths a reversed form of lift where the function appears on the right and is applied on a tuple (useful when type inference has failed) as well as a.zipped
method for building tuples out of several combinators.parsley.errors
contains modules to deal with error messages, their refinement and generation.parsley.errors.combinator
provides combinators that can be used to either produce more detailed errors as well as refine existing errors.parsley.errors.tokenextractors
provides mixins for common token extraction strategies during error message generation: these can be used to avoid implementingunexpectedToken
in theErrorBuilder
.parsley.lift
contains functions which lift functions that work on regular types to those which now combine the results of parsers returning those same types. these are ubiquitous.parsley.ap
contains functions which allow for the application of a parser returning a function to several parsers returning each of the argument types.parsley.registers
contains combinators that interact with the context-sensitive functionality in the form of registers.parsley.token
contains theLexer
class that provides a host of helpful lexing combinators when provided with the description of a language.parsley.position
contains parsers for extracting position information.parsley.genericbridges
contains some basic implementations of the Parser Bridge pattern (see Design Patterns for Parser Combinators in Scala, or the parsley wiki): these can be used before more specialised generic bridge traits can be constructed.