RegExPlus

RegExPlus allows parsing text using regular expressions (regexes). They can be used to parse text to extract information and then use that information in another format.RegExPlus is a Tasker plugin. It is not a stand-alone app and will not function without Tasker.
Features• Offline, in-app help
• App shortcuts (Android Nougat 7.1 feature, which is also supported in some launchers for earlier versions)
RegExPlus supports all the regex syntax supported in Java, including newly added syntax• Matching of a numeric range
• Named capture groups and back references
• Ability to reference a specific group- even in the case where multiple groups have the same name
• Perl's gn and g{n} syntax for back references and relative references
• If-Then-Else Conditionals
• ”Branch reset" subpatterns
• Explicit capture option (?n) - syntax from .NET
• POSIX classes via [:class:] syntax
• X - match a single grapheme- similar to the dot, which matches (almost) any character
• (?#comment) syntax for embedded comments
See http://codesaway.info/RegExPlus for details on how to use the various syntax available.
Known bugs:
In Android 4.0 (Ice cream sandwich), in the in-app help• Image logo doesn't appear and menu doesn't work• Links seem to work correctly• A fix is being investigated• Tasker plugin functionality is not impacted