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Different apps/languages support regular expressions to varying degrees, if it's the \w in your expression that is the issue you could try:<br />

<pre><code id="code-108583">[A-Za-z0-9_]+([-+.'][A-Za-z0-9_]+)*@[A-Za-z0-9_]+([-.][A-Za-z0-9_]+)*\.[A-Za-z0-9_]+([-.][A-Za-z0-9_]+)*
</code></pre>
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Different apps/languages support regular expressions to varying degrees, if it's the \w in your expression that is the issue you could try:


[A-Za-z0-9_]+([-+.'][A-Za-z0-9_]+)*@[A-Za-z0-9_]+([-.][A-Za-z0-9_]+)*\.[A-Za-z0-9_]+([-.][A-Za-z0-9_]+)*


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Thanks for the clues<br />
<br />
I changes this:<br />
\w+([-+.']\w+)*@\w+([-.]\w<wbr />+)*\.\w+([<wbr />-.]\w+)*<br />
to this<br />
\w+([-+.'_]\w+)*@\w+([-.]\<wbr />w+)*\.\w+(<wbr />[-.]\w+)*<br />
<br />
I just needed to allow underscores before the @ sign.<br />
<br />
Thanks<br />
Andrew
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Thanks for the clues

I changes this:
\w+([-+.']\w+)*@\w+([-.]\w+)*\.\w+([-.]\w+)*
to this
\w+([-+.'_]\w+)*@\w+([-.]\w+)*\.\w+([-.]\w+)*

I just needed to allow underscores before the @ sign.

Thanks
Andrew

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<div class="content wysiwyg-content">
Hi<br />
<br />
This Regular expression doesn't accept underscores in a XML schema but it does validate with other tools. It's actually from ASP.NET. <br />
<br />
\w+([-+.']\w+)*@\w+([-.]\w<wbr />+)*\.\w+([<wbr />-.]\w+)*<br />
<br />
e.g. 'bill_smith@email.co.uk' fails.<br />
<br />
It seems odd that a schema treats it differently. What do I need to do?<br />
<br />
Thanks<br />
Andrew<br />

</div>
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Hi

This Regular expression doesn't accept underscores in a XML schema but it does validate with other tools. It's actually from ASP.NET. 

\w+([-+.']\w+)*@\w+([-.]\w+)*\.\w+([-.]\w+)*

e.g. 'bill_smith@email.co.uk' fails.

It seems odd that a schema treats it differently. What do I need to do?

Thanks
Andrew


regEx pattern validates differently in XML schema

A regular expression ("regex") is a sequence of characters that define a search pattern, mainly for use in pattern matching with strings, or string matching, i.e. "find and replace"-like operations. Regular expression processors are found in several search engines, search and replace dialogs of several word processors and text editors, and in the command lines of text processing utilities, such as sed and AWK. Many programming languages provide regular expression capabilities, some built-in, for example Perl, JavaScript, Ruby, AWK, and Tcl, and others via a standard library, for example .NET languages, Java, Python and C++ (since C++11). Most other languages offer regular expressions via a library.