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.
Constructors
- PatternParser(Pattern pattern, String message)
Properties
-
children
→ List<
Parser> -
The 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
-
copy(
) → PatternParser -
Creates a shallow copy of this parser.
override
-
fastParseOn(
String buffer, int position) → int -
Parses
bufferstarting atpositionwithout allocating a Result.override -
hasEqualChildren(
covariant Parser other, Set< Parser> seen) → bool -
Compares the children of this parser with
other.inherited -
hasEqualProperties(
covariant PatternParser other) → bool -
Compares the properties of this parser with
other.override -
isEqualTo(
Parser other, [Set< Parser> ? seen]) → bool -
Tests if this parser is structurally equal to
other.inherited -
noSuchMethod(
Invocation invocation) → dynamic -
Invoked when a nonexistent method or property is accessed.
inherited
-
parse(
String input, {int start = 0}) → Result< Match> -
Parses the
inputand returns the parse result.inherited -
parseOn(
Context context) → Result< Match> -
Parses the given
context.override -
replace(
Parser source, Parser target) → void -
Replaces
sourcewithtargetin this parser.inherited -
toString(
) → String -
A string representation of this object.
override
Operators
-
operator ==(
Object other) → bool -
The equality operator.
inherited