Package com.blackrook.rookscript.struct

Class PatternUtils

java.lang.Object

com.blackrook.rookscript.struct.PatternUtils

public final class PatternUtils
extends Object

A caching structure for all RegEx patterns.

RegExs, when compiled into Patterns, can be reused several times. This cache is for automatic building/returning existing patterns by String.

All operations are thread-safe.

Author:

Matthew Tropiano

Method Summary

Modifier and Type	Method	Description
static Pattern	get(String regex)	Gets an existing, compiled pattern or a newly-compiled one for the provided expression.

Methods inherited from class java.lang.Object

clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

Method Details

get

public static Pattern get(String regex)

Gets an existing, compiled pattern or a newly-compiled one for the provided expression. Also useful for pre-warming oft-used expressions.

Parameters:

regex - the input RegEx.

Returns:

a newly-compiled Pattern or an existing one.

Throws:

PatternSyntaxException - if the expression cannot be compiled.