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I need help with a regular expression. &nbsp;The following expression identifies strings of 4 bytes or more. &nbsp;However, it does not seem to work when the string has a special character like &quot;-&quot;. &nbsp;<br />
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\w{4,}<br />
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For Example; <br />
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1234 &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; --&gt; &nbsp; Found. <br />
23-44 &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; --&gt; Not found <br />
<br />
How can I get this to work with special characters?
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I need help with a regular expression.  The following expression identifies strings of 4 bytes or more.  However, it does not seem to work when the string has a special character like "-".  

\w{4,}

For Example; 

1234                       -->   Found. 
23-44                     --> Not found 

How can I get this to work with special characters?

Regular Expression Help - finding string of certain length

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.