<div>
Thanks MichaelStaszewski,<br />
<br />
That didn't seem to work in my C#... I am starting to understand there their a different implementation of regexp for different languages... this seemed to work fine:<br />
<br />

<pre><code id="code-20-37752563-1">\bAND\b|\bNOT\b|\bOR\b</code></pre>
</div>


Thanks MichaelStaszewski,

That didn't seem to work in my C#... I am starting to understand there their a different implementation of regexp for different languages... this seemed to work fine:



\bAND\b|\bNOT\b|\bOR\b

<div>
I'm not a C# guy and use PCRE mostly. There are differences between regex engines. That's good you found a solution.
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I'm not a C# guy and use PCRE mostly. There are differences between regex engines. That's good you found a solution.

<div>
There's a nice comparison of features between the two (and others) on this page: &nbsp;<a href="http://www.regular-expressions.info/refflavors.html" rel="ugc">http://www.regular-expressions.info/refflavors.html</a>
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There's a nice comparison of features between the two (and others) on this page:  http://www.regular-expressions.info/refflavors.html [http://www.regular-expressions.info/refflavors.html]

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<div class="content wysiwyg-content">
Hi All,<br />
<br />
In C# I have the following variable that tests for the following matches... ' not ',' and ',' or '.<br />
<br />
This seems to work fine when locating matches for ' not ' and ' and ' but it doesn't work when locating the keyword ' or '.<br />
<br />
Can anyone see what I am doing wrong?<br />
<br />

<pre><code id="code-10-27644026-1">Match matchBoolOperators = Regex.Match(strSearchTerm.ToLower(), @&quot;[ not ][ and ][ or ]&quot;);</code></pre>
<br />
Many thanks,<br />
<br />
Rich
</div>
</div>


Hi All,

In C# I have the following variable that tests for the following matches... ' not ',' and ',' or '.

This seems to work fine when locating matches for ' not ' and ' and ' but it doesn't work when locating the keyword ' or '.

Can anyone see what I am doing wrong?

(CODE)

Many thanks,

Rich

Regular expression match words - ignores OR

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.

Regular Expressions

C# is an object-oriented programming language created in conjunction with Microsoft’s .NET framework. Compilation is usually done into the Microsoft Intermediate Language (MSIL), which is then JIT-compiled to native code (and cached) during execution in the Common Language Runtime (CLR).

The successor to Active Server Pages, ASP.NET websites utilize the .NET framework to produce dynamic, data and content-driven web applications and services. ASP.NET code can be written using any .NET supported language. As of 2009, ASP.NET can also apply the Model-View-Controller (MVC) pattern to web applications