| Name | Description | Type | Package | Framework |
| Matcher | An engine that performs match operations on a character sequence by interpreting a Pattern. | Class | java.util.regex | Java SE |
| MatchResult | The result of a match operation. | Interface | java.util.regex | Java SE |
| Pattern | A compiled representation of a regular expression. | Class | java.util.regex | Java SE |
| PatternSyntaxException | Unchecked exception thrown to indicate a syntax error in a regular-expression pattern. | Class | java.util.regex | Java SE |
| RegexUtils | Regular Expression Utilities. | Class | org.springframework.integration.ip.util | Spring Integration |
| RegexPatternMatcher | Allows regular expressions to be used in action names. | Class | org.apache.struts2.util | Apache Struts |
| RegexPatternMatcherExpression | Holds a compiled expression to match URLsSee Also:RegexPatternMatcher | Class | org.apache.struts2.util | Apache Struts |
| RegexUtils | Class | org.apache.jena.sdb.util | Apache Jena | |
| RegexFileFilter | Class | org.apache.solr.util | Apache Solr Lucene | |
| RegexFilter | This class implements filters that are configured with a sequence of regexes. | Class | com.google.gwt.util.regexfilter | Google WebToolkit (GWT) |
| ASCII | Class | util.regex | Code Trails | |
| RegexSet | A Set of Regular expressions strings. | Class | org.eclipse.jetty.util | Jetty |
| RegexStringFilter | Filters Strings based on whether they match a given regex. | Class | edu.stanford.nlp.util | Stanford Parser |
| RegExPatternMatcher | P a t t e r n M a t c h e r i m p l e m e n t a t i o n t h a t u s e s s t a n d a r d j a v a . | Class | org.apache.shiro.util | Apache Shiro |
| RegexStringFilter | Filters Strings based on whether they match a given regex. | Class | edu.stanford.nlp.util | JavaNlp |
| CharacterArrayCharacterIterator | Encapsulates char[] as CharacterIteratorVersion:CVS $Id: CharacterArrayCharacterIterator. | Class | com.codename1.util.regex | CodeName One |
| CharacterIterator | Encapsulates different types of character sources - String, InputStream, . | Interface | com.codename1.util.regex | CodeName One |
| RE | RE is an efficient, lightweight regular expression evaluator/matcher class. | Class | com.codename1.util.regex | CodeName One |
| ReaderCharacterIterator | Encapsulates java. | Class | com.codename1.util.regex | CodeName One |
| RECharacter | Class | com.codename1.util.regex | CodeName One | |
| RECompiler | A regular expression compiler class. | Class | com.codename1.util.regex | CodeName One |
| REDebugCompiler | A subclass of RECompiler which can dump a regular expression program for debugging purposes. | Class | com.codename1.util.regex | CodeName One |
| REProgram | A class that holds compiled regular expressions. | Class | com.codename1.util.regex | CodeName One |
| RESyntaxException | Exception thrown to indicate a syntax error in a regular expression. | Class | com.codename1.util.regex | CodeName One |
| REUtil | This is a class that contains utility helper methods for this package. | Class | com.codename1.util.regex | CodeName One |
| StreamCharacterIterator | Encapsulates java. | Class | com.codename1.util.regex | CodeName One |
| StringCharacterIterator | Encapsulates String as CharacterIterator. | Class | com.codename1.util.regex | CodeName One |
| StringReader | Class | com.codename1.util.regex | CodeName One | |
| RegexFileFilter | Constructor SummaryRegexFileFilter(java. | Class | cc.mallet.util | Mallet |
| RegexpProperties | Used to overcome the limitation of Properties class when dealing with regular expressions read from properties file. | Class | ro.isdc.wro.util | Wro4J |
| CharSequence | Interface | com.sapportals.wcm.util.regex | SAP NetWeaver | |
| CharSequenceImpl | Provides an interface for access to strings as sequences of characters. | Class | com.sapportals.wcm.util.regex | SAP NetWeaver |
| CharacterArrayCharacterIterator | Class | com.sapportals.wcm.util.regex.re | SAP NetWeaver | |
| CharacterIterator | Encapsulates different types of character sources - String, InputStream, . | Interface | com.sapportals.wcm.util.regex.re | SAP NetWeaver |
| Matcher | An engine that performs match operations on a character sequence by interpreting a Pattern. | Class | com.sapportals.wcm.util.regex | SAP NetWeaver |
| PathPatternMatcher | PathPatternMatcher matches single line strings against a given pattern. | Class | com.sapportals.wcm.util.regex | SAP NetWeaver |
| Pattern | A compiled representation of a regular expression. | Class | com.sapportals.wcm.util.regex | SAP NetWeaver |
| PatternSyntaxException | Base class for exceptions generated by this package. | Class | com.sapportals.wcm.util.regex | SAP NetWeaver |
| RE | RE is an efficient, lightweight regular expression evaluator/matcher class. | Class | com.sapportals.wcm.util.regex.re | SAP NetWeaver |
| RECompiler | A regular expression compiler class. | Class | com.sapportals.wcm.util.regex.re | SAP NetWeaver |
| REDebugCompiler | A subclass of RECompiler which can dump a regular expression program for debugging purposes. | Class | com.sapportals.wcm.util.regex.re | SAP NetWeaver |
| REProgram | A class that holds compiled regular expressions. | Class | com.sapportals.wcm.util.regex.re | SAP NetWeaver |
| RESyntaxException | Exception thrown to indicate a syntax error in a regular expression. | Class | com.sapportals.wcm.util.regex.re | SAP NetWeaver |
| RETest | Data driven (and optionally interactive) testing harness to exercise regular expression compiler and matching engine. | Class | com.sapportals.wcm.util.regex.re | SAP NetWeaver |
| REUtil | This is a class that contains utility helper methods for this package. | Class | com.sapportals.wcm.util.regex.re | SAP NetWeaver |
| ReaderCharacterIterator | Encapsulates InputStream, . | Class | com.sapportals.wcm.util.regex.re | SAP NetWeaver |
| recompile | 'recompile' is a command line tool that pre-compiles one or more regular expressions for use with the regular expression matcher class 'RE'. | Class | com.sapportals.wcm.util.regex.re | SAP NetWeaver |
| StreamCharacterIterator | Encapsulates InputStream, . | Class | com.sapportals.wcm.util.regex.re | SAP NetWeaver |
| StringCharacterIterator | Class | com.sapportals.wcm.util.regex.re | SAP NetWeaver | |
| RegexMatcher | Check that a text matches an array of regular expressions. | Class | liquibase.util | LiquiBase |