THIS IS A TEST INSTANCE. ALL YOUR CHANGES WILL BE LOST!!!!
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Survey of Java regular expression libraries
| Library | Algorithm | POSIX longest leftmost match | License | URL |
| java.util.regex | Backtracking | No | Java | (included as part of Java) |
| Jakarta ORO | Backtracking | No | Apache | http://attic.apache.org/projects/jakarta-oro.html |
| Jakarta Regex | Backtracking | No | Apache | http://attic.apache.org/projects/jakarta-regexp.html |
| com.stevesoft.pat | Backtracking | Unknown | LGPL | http://www.javaregex.com/home.html |
| dk.brics.automaton | DFA | Unknown | BSD | http://www.brics.dk/automaton/index.html |
| JRegex | Backtracking | Unknown | BSD | http://jregex.sourceforge.net/ |
| dregex | DFA | Unknown | BSD | https://index.scala-lang.org/marianobarrios/dregex |
Of these, the automaton library looks the most interesting from a DFA perspective.
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