RegexperRegular expression visualizer using railroad diagrams
Using Regular Expressions in Java
Java 4 (JDK 1.4) and later have comprehensive support for regular expressions through the standard java.util.regex package. Because Java lacked a regex package for so long, there are also many 3rd party regex packages available for Java. I will only discuss Sun’s regex library that is now part of the JDK. Its quality is excellent, better than most of the 3rd party packages. Unless you need to supp
RegExr: Learn, Build, & Test RegEx
RegExr is an online tool to learn, build, & test Regular Expressions (RegEx / RegExp). Supports JavaScript & PHP/PCRE RegEx. Results update in real-time as you type. Roll over a match or expression for details. Validate patterns with suites of Tests. Save & share expressions with others. Use Tools to explore your results. Full RegEx Reference with help & examples. Undo & Redo with {{getCtrlKey()}}
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