Regex

scala.util.matching.Regex$
See theRegex companion class
object Regex

This object defines inner classes that describe regex matches and helper objects.

Attributes

Companion:
class
Source:
Regex.scala
Graph
Supertypes
class Object
trait Matchable
class Any
Self type
Regex.type

Members list

Concise view

Type members

Classlikes

object Groups

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" })

Attributes

Source:
Regex.scala
Graph
Supertypes
class Object
trait Matchable
class Any
Self type
Groups.type
class Match(val source: CharSequence, val matcher: Matcher, _groupNames: Seq[String]) extends MatchData

Provides information about a successful match.

Provides information about a successful match.

Attributes

Companion:
object
Source:
Regex.scala
Graph
Supertypes
trait MatchData
class Object
trait Matchable
class Any
object Match

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 })

Attributes

Companion:
class
Source:
Regex.scala
Graph
Supertypes
class Object
trait Matchable
class Any
Self type
Match.type
trait MatchData

This class provides methods to access the details of a match.

This class provides methods to access the details of a match.

Attributes

Source:
Regex.scala
Graph
Supertypes
class Object
trait Matchable
class Any
Known subtypes
class Match
class MatchIterator(val source: CharSequence, val regex: Regex, val _groupNames: Seq[String]) extends AbstractIterator[String] with Iterator[String] with MatchData

A class to step through a sequence of regex matches.

A class to step through a sequence of regex matches.

This is an iterator that returns the matched strings.

Queries about match data pertain to the current state of the underlying matcher, which is advanced by calling hasNext or next.

When matches are exhausted, queries about match data will throw java.lang.IllegalStateException.

Attributes

See also:
Source:
Regex.scala
Graph
Supertypes
Self type

Value members

Concrete methods

def quote(text: String): String

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.

Attributes

Example:

List("US$", "CAN$").map(Regex.quote).mkString("|").r
Source:
Regex.scala

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.

Attributes

text

The string one wishes to use as literal replacement.

Returns:

A string that can be used to replace matches with text.

Example:

"CURRENCY".r.replaceAllIn(input, Regex quoteReplacement "US$")
Source:
Regex.scala