PatternParser class

A parser that uses a Pattern matcher for parsing.

This parser wraps Pattern.matchAsPrefix in a Parser. This works for any implementation of Pattern, but can lead to very inefficient parsers when not used carefully.

Inheritance

Constructors

PatternParser(Pattern pattern, String message)

Properties

children → List<Parser>
Returns a list of directly referenced parsers.
no setterinherited
hashCode → int
The hash code for this object.
no setterinherited
message → String
Error message to annotate parse failures with.
final
pattern → Pattern
The Pattern matcher this parser uses.
final
runtimeType → Type
A representation of the runtime type of the object.
no setterinherited

Methods

captureResultGeneric<T>(T callback<R>(Parser<R> self)) → T
Internal helper to capture the generic type R of the parse result. This makes it possible to wrap the parser without loosing type information.
inherited
copy() → PatternParser
Returns a shallow copy of the receiver.
override
fastParseOn(String buffer, int position) → int
Primitive method doing the actual parsing.
override
hasEqualChildren(covariant Parser other, Set<Parser> seen) → bool
Compare the children of two parsers.
inherited
hasEqualProperties(covariant PatternParser other) → bool
Compare the properties of two parsers.
override
isEqualTo(Parser other, [Set<Parser>? seen]) → bool
Recursively tests for structural equality of two parsers.
inherited
noSuchMethod(Invocation invocation) → dynamic
Invoked when a nonexistent method or property is accessed.
inherited
parse(String input, {int start = 0}) → Result<Match>
Returns the parse result of the input.
inherited
parseOn(Context context) → Result<Match>
Primitive method doing the actual parsing.
override
replace(Parser source, Parser target) → void
Changes the receiver by replacing source with target. Does nothing if source does not exist in Parser.children.
inherited
toString() → String
A string representation of this object.
override

Operators

operator ==(Object other) → bool
The equality operator.
inherited