An instance of the java. class
represents a regular expression that is specified in string form in
a syntax similar to that used by Perl.
Instances of the java. class are used
to match character sequences against a given pattern. Input is
provided to matchers via the java.
interface in order to support matching against characters from a
wide variety of input sources.
Unless otherwise noted, passing a null argument to a
method in any class or interface in this package will cause a
NullPointerException to be
thrown.
An excellent tutorial and overview of regular expressions is Mastering Regular Expressions, Jeffrey E. F. Friedl, O'Reilly and Associates, 1997.
| Modifier and Type | Interface and Description |
|---|---|
| public interface | MatchResult
The result of a match operation. |
| Modifier and Type | Class and Description |
|---|---|
| pack-priv class | ASCII
Utility class that implements the standard C ctype functionality. |
| pack-priv class | |
| pack-priv class | IntHashSet
A lightweight hashset implementation for positive 'int'. |
| public class | Matcher
An engine that performs match operations on a character sequence by interpreting a |
| public class | Pattern
A compiled representation of a regular expression. |
| public class | PatternSyntaxException
Unchecked exception thrown to indicate a syntax error in a regular-expression pattern. |
| pack-priv class | PrintPattern
A utility class to print out the pattern node tree. |