A regular expression pattern.
Regular expressions are Patterns, and can as such be used to match strings or parts of strings.
Dart regular expressions have the same syntax and semantics as JavaScript regular expressions. See http://ecma-international.org/ecma-262/5.1/#sec-15.10 for the specification of JavaScript regular expressions.
firstMatch is the main implementation method that applies a regular expression to a string and returns the first Match. All other methods in RegExp can build on it.
Use allMatches to look for all matches of a regular expression in a string.
The following example finds all matches of a regular expression in a string.
RegExp exp = new RegExp(r"(\w+)");
String str = "Parse my string";
Iterable<Match> matches = exp.allMatches(str);
Note the use of a raw string (a string prefixed with r)
in the example above. Use a raw string to treat each character in a string
as a literal character.
- Implements
Constructors
Properties
- hashCode → int
-
Get a hash code for this object.
read-only, inherited - isCaseSensitive → bool
-
Whether this regular expression is case sensitive.
read-only - isMultiLine → bool
-
Whether this regular expression matches multiple lines.
read-only - pattern → String
-
The source regular expression string used to create this
RegExp.read-only - runtimeType → Type
-
A representation of the runtime type of the object.
read-only, inherited
Operators
-
operator ==(
other) → bool -
The equality operator.
inherited
Methods
-
allMatches(
String input, [ int start = 0 ]) → Iterable<Match> -
Returns an iterable of the matches of the regular expression on
input. -
firstMatch(
String input) → Match -
Searches for the first match of the regular expression in the string
input. Returnsnullif there is no match. -
hasMatch(
String input) → bool -
Returns whether the regular expression has a match in the string
input. -
matchAsPrefix(
String string, [ int start = 0 ]) → Match -
Match this pattern against the start of
string.inherited -
noSuchMethod(
Invocation invocation) → dynamic -
Invoked when a non-existent method or property is accessed.
inherited -
stringMatch(
String input) → String -
Returns the first substring match of this regular expression in
input. -
toString(
) → String -
Returns a string representation of this object.
inherited