SandR is a Recursive Regex Search and Replacement utility. It works on files or directories recursively. It supports Java-style RegularExpression in Search terms; it supports auto-detection of character encoding of the files. SandR is written in Java.
With RegExTest you can fully test your regular expressions against a target text. RegularExpression syntax is not so obvious, so a quick test enviroment is really helpful in all situations. RegExTest allows you to use and test grouping functions.
RegularExpression Library - provides a very fast DFA (Deterministic Finite Automaton) based matching algorithm, and full compliance with POSIX.2 except for internationalization features
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