Regex
Related Docs:
class Regex
| package matching
Provides information about a successful match.
This class provides methods to access the details of a match.
A class to step through a sequence of regex matches.
A class to step through a sequence of regex matches.
All methods inherited from scala.util.matching.Regex.MatchData will throw
a java.lang.IllegalStateException until the matcher is initialized. The
matcher can be initialized by calling hasNext or next() or causing these
methods to be called, such as by invoking toString or iterating through
the iterator's elements.
java.util.regex.Matcher
Test two objects for inequality.
Test two objects for inequality.
true if !(this == that), false otherwise.
Equivalent to x.hashCode except for boxed numeric types and null.
Equivalent to x.hashCode except for boxed numeric types and null.
For numerics, it returns a hash value which is consistent
with value equality: if two value type instances compare
as true, then ## will produce the same hash value for each
of them.
For null returns a hashcode where null.hashCode throws a
NullPointerException.
a hash value consistent with ==
The expression x == that is equivalent to if (x eq null) that eq null else x.equals(that).
The expression x == that is equivalent to if (x eq null) that eq null else x.equals(that).
the object to compare against this object for equality.
true if the receiver object is equivalent to the argument; false otherwise.
An extractor object that yields the groups in the match.
An extractor object that yields the groups in the match. Using this extractor
rather than the original Regex ensures that the match is not recomputed.
import scala.util.matching.Regex.Groups val date = """(\d\d\d\d)-(\d\d)-(\d\d)""".r val text = "The doc spree happened on 2011-07-15." val day = date replaceAllIn(text, _ match { case Groups(_, month, day) => s"$month/$day" })
An extractor object for Matches, yielding the matched string.
An extractor object for Matches, yielding the matched string.
This can be used to help writing replacer functions when you are not interested in match data. For example:
import scala.util.matching.Regex.Match """\w+""".r replaceAllIn ("A simple example.", _ match { case Match(s) => s.toUpperCase })
Cast the receiver object to be of type T0.
Cast the receiver object to be of type T0.
Note that the success of a cast at runtime is modulo Scala's erasure semantics.
Therefore the expression 1.asInstanceOf[String] will throw a ClassCastException at
runtime, while the expression List(1).asInstanceOf[List[String]] will not.
In the latter example, because the type argument is erased as part of compilation it is
not possible to check whether the contents of the list are of the requested type.
the receiver object.
ClassCastException if the receiver object is not an instance of the erasure of type T0.
Create a copy of the receiver object.
Tests whether the argument (arg0) is a reference to the receiver object (this).
Tests whether the argument (arg0) is a reference to the receiver object (this).
The eq method implements an equivalence relation on
non-null instances of AnyRef, and has three additional properties:
x and y of type AnyRef, multiple invocations of
x.eq(y) consistently returns true or consistently returns false.x of type AnyRef, x.eq(null) and null.eq(x) returns false.null.eq(null) returns true. When overriding the equals or hashCode methods, it is important to ensure that their behavior is
consistent with reference equality. Therefore, if two objects are references to each other (o1 eq o2), they
should be equal to each other (o1 == o2) and they should hash to the same value (o1.hashCode == o2.hashCode).
true if the argument is a reference to the receiver object; false otherwise.
The equality method for reference types.
Called by the garbage collector on the receiver object when there are no more references to the object.
Called by the garbage collector on the receiver object when there are no more references to the object.
The details of when and if the finalize method is invoked, as
well as the interaction between finalize and non-local returns
and exceptions, are all platform dependent.
A representation that corresponds to the dynamic class of the receiver object.
A representation that corresponds to the dynamic class of the receiver object.
The nature of the representation is platform dependent.
a representation that corresponds to the dynamic class of the receiver object.
not specified by SLS as a member of AnyRef
The hashCode method for reference types.
Test whether the dynamic type of the receiver object is T0.
Test whether the dynamic type of the receiver object is T0.
Note that the result of the test is modulo Scala's erasure semantics.
Therefore the expression 1.isInstanceOf[String] will return false, while the
expression List(1).isInstanceOf[List[String]] will return true.
In the latter example, because the type argument is erased as part of compilation it is
not possible to check whether the contents of the list are of the specified type.
true if the receiver object is an instance of erasure of type T0; false otherwise.
Equivalent to !(this eq that).
Equivalent to !(this eq that).
true if the argument is not a reference to the receiver object; false otherwise.
Wakes up a single thread that is waiting on the receiver object's monitor.
Wakes up a single thread that is waiting on the receiver object's monitor.
not specified by SLS as a member of AnyRef
Wakes up all threads that are waiting on the receiver object's monitor.
Wakes up all threads that are waiting on the receiver object's monitor.
not specified by SLS as a member of AnyRef
Quotes strings to be used literally in regex patterns.
Quotes strings to be used literally in regex patterns.
All regex metacharacters in the input match themselves literally in the output.
List("US$", "CAN$").map(Regex.quote).mkString("|").r
Quotes replacement strings to be used in replacement methods.
Quotes replacement strings to be used in replacement methods.
Replacement methods give special meaning to backslashes (\) and
dollar signs ($) in replacement strings, so they are not treated
as literals. This method escapes these characters so the resulting
string can be used as a literal replacement representing the input
string.
The string one wishes to use as literal replacement.
A string that can be used to replace matches with text.
"CURRENCY".r.replaceAllIn(input, Regex quoteReplacement "US$")
Creates a String representation of this object.
Creates a String representation of this object. The default representation is platform dependent. On the java platform it is the concatenation of the class name, "@", and the object's hashcode in hexadecimal.
a String representation of the object.
This object defines inner classes that describe regex matches and helper objects.