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jrexx is a regular expression API for textual pattern matching based on the finite state automaton theory. It's matching algorithm is extremly fast and works with huge patterns and input texts. jrexx also offers set operations (union, intersection, difference, complement) for combination of automatons.

• creation of deterministic regex automatons from pattern strings
• extremly fast pattern matching of input strings
• combination of automatons with set operations (unify, intersect, substract, complement)
• introspection of the automaton's structure by states and transitions
• jrexx is implemented in 100% pure Java and runs on any plattform providing a Java Runtime Environment (JRE) version 1.3.x or greater

jrexx is published under LGPL and therefore is freely distributeable. Please kindly note that there is No Warranty for this product.

jrexx is a powerful easy-to-use regular expression API for textual pattern matching. Technically jrexx uses a minimized deterministic FSA (finite state automaton) and compiles the textual representation of the regular expression into such an automaton. Besides the usual pattern matching functionality, jrexx provides an introspection API for exploration of the automaton's structure by 'states' and 'transitions'. Since the automaton is deterministic and minimized the pattern matching alogorithm is extremly fast (compared to the java regular expression API in JDK1.4) and works with huge patterns and input texts. Since FSA can be handled as sets, jrexx also offers all basic set operations for complement, union, intersection and difference, which is not provided by other regex implementations (as far as we know).

jrexx is implemented in 100% pure Java.

(...todo...)

• 'Named Groups' are in preparation of version 1.2.
  This feature will provide access to contents of a matched string by 'name'.

• jrexx - automaton based regular expression API for Java
    Author: Ralf Meyer [ralf.meyer@karneim.com]
  
• jrexx demos - demonstration applets of the jrexx API
    Author: Michael Karneim [michael.karneim@karneim.com]
  

BECAUSE THE PROGRAM IS LICENSED FREE OF CHARGE, THERE IS NO WARRANTY FOR THE PROGRAM, TO THE EXTENT PERMITTED BY APPLICABLE LAW. EXCEPT WHEN OTHERWISE STATED IN WRITING THE COPYRIGHT HOLDERS AND/OR OTHER PARTIES PROVIDE THE PROGRAM "AS IS" WITHOUT WARRANTY OF ANY KIND, EITHER EXPRESSED OR IMPLIED, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE. THE ENTIRE RISK AS TO THE QUALITY AND PERFORMANCE OF THE PROGRAM IS WITH YOU. SHOULD THE PROGRAM PROVE DEFECTIVE, YOU ASSUME THE COST OF ALL NECESSARY SERVICING, REPAIR OR CORRECTION.

IN NO EVENT UNLESS REQUIRED BY APPLICABLE LAW OR AGREED TO IN WRITING WILL ANY COPYRIGHT HOLDER, OR ANY OTHER PARTY WHO MAY MODIFY AND/OR REDISTRIBUTE THE PROGRAM AS PERMITTED ABOVE, BE LIABLE TO YOU FOR DAMAGES, INCLUDING ANY GENERAL, SPECIAL, INCIDENTAL OR CONSEQUENTIAL DAMAGES ARISING OUT OF THE USE OR INABILITY TO USE THE PROGRAM (INCLUDING BUT NOT LIMITED TO LOSS OF DATA OR DATA BEING RENDERED INACCURATE OR LOSSES SUSTAINED BY YOU OR THIRD PARTIES OR A FAILURE OF THE PROGRAM TO OPERATE WITH ANY OTHER PROGRAMS), EVEN IF SUCH HOLDER OR OTHER PARTY HAS BEEN ADVISED OF THE POSSIBILITY OF SUCH DAMAGES.

(c) 2003 by Büro für Softwarearchitektur GbR, M.Karneim, R.Karneim, R.Meyer
For further information on jrexx, documentation and tutorials please visit us online at http://jrexx.sf.net