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    <p>The regex parser has an if conditional and the ability to group items into named capture groups; to which I will demonstrate. </p> <p>Here is an example where the patttern looks for symbols first (<em>only a comma add more symbols to the set [,]</em>) then numbers and drops the rest into words.</p> <pre><code>string text = @"There are 4 numbers in this string 40, 30, and 10"; string pattern = @" (?([,]) # If a comma (or other then add it) is found its a symbol (?&lt;Symbol&gt;[,]) # Then match the symbol | # else its not a symbol (?(\d+) # If a number (?&lt;Number&gt;\d+) # Then match the numbers | # else its not a number (?&lt;Word&gt;[^\s]+) # So it must be a word. ) ) "; // Ignore pattern white space allows us to comment the pattern only, does not affect // the processing of the text! Regex.Matches(text, pattern, RegexOptions.IgnorePatternWhitespace) .OfType&lt;Match&gt;() .Select (mt =&gt; { if (mt.Groups["Symbol"].Success) return "Symbol found: " + mt.Groups["Symbol"].Value; if (mt.Groups["Number"].Success) return "Number found: " + mt.Groups["Number"].Value; return "Word found: " + mt.Groups["Word"].Value; } ) .ToList() // To show the result only remove .ForEach(rs =&gt; Console.WriteLine (rs)); /* Result Word found: There Word found: are Number found: 4 Word found: numbers Word found: in Word found: this Word found: string Number found: 40 Symbol found: , Number found: 30 Symbol found: , Word found: and Number found: 10 */ </code></pre> <p>Once the regex has tokenized the resulting matches, then we us linq to extract out those tokens by identifying which named capture group has a success. In this example we get the successful capture group and project it into a string to print out for viewing.</p> <p>I discuss the regex if conditional on my blog <a href="http://omegacoder.com/?p=56" rel="nofollow">Regular Expressions and the If Conditional</a> for more information.</p>
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    1. POwhat regex must i use to split this?
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    1. USΩmegaMan
    1. USΩmegaMan
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      1. VTUpMod
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    1. COthis work for me.. thank you very much to you mister.. :)
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      1. USIsyar Harun
    2. CO+1 nice use of conditionals William :)
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      1. USAhmad Mageed
 

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