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Introduction
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RegEx Builder helps you build regular expressions. I built this tool for use in my C# development,
but you can use these expressions with any regular expression engine that understands standard
regular expressions. Use RegEx Builder to create your expression, then copy the expression to
where-ever you need to use it.
RegEx Builder interprets your expression as you build it. This eliminates the old edit-compile-test
loop that sometimes seems endless when trying to build a complex expression. With RegEx
Builder you simply supply one or more examples of the text you want to match in the target text
window. Then start building your expression. RegEx Builder will evaluate your expression as you
type it and show you which text in the target text is matched by highlighting all matching
occurrences.
There is a lot of really good information available on regular expressions on the web. I am not
going to try to replicate any of it here. RegEx Builder provides a help button drop down menu
with menu items that should cover almost everything you could ever want to know about regular
expressions.
The Quick Start Guide section explains in just a few steps how to start using RegEx Builder.
The Reference section contains descriptions of all the features of RegEx Builder.
The FAQ contains common questions and answers.