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The Java Platform, Standard Edition 7 (Java 7) now includes support for named capturing groups in regular expressions. This feature allows you to refer to Capturing groups by name, making it easier to parse and process complex patterns.
To define a named capturing group, use the syntax:
(?<name>capturing text)
Where:
To refer to a named capturing group, use the syntax:
For instance, consider the following regular expression:
"(?<login>\w+) (?<id>\d+)"
When matched against the string "TEST 123," this expression would capture the following named groups:
Before Java 7, several third-party libraries provided named capturing group support. These libraries have limited compatibility with current Java versions. Some examples include:
Named capturing groups provide a convenient and flexible way to parse complex patterns in Java. With the support in Java 7 and the availability of third-party libraries, you can leverage this feature for a wide range of text processing tasks.
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