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POA More Efficient Way to Parse a String in C#
 

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  1. POA More Efficient Way to Parse a String in C#
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    <p>I have this code that reads a file and creates Regex groups. Then I walk through the groups and use other matches on keywords to extract what I need. I need the stuff between each keyword and the next space or newline. I am wondering if there is a way using the Regex keyword match itself to discard what I don't want (the keyword). </p> <pre><code>//create the pattern for the regex String VSANMatchString = @"vsan\s(?&lt;number&gt;\d+)[:\s](?&lt;info&gt;.+)\n(\s+name:(?&lt;name&gt;.+)\s+state:(?&lt;state&gt;.+)\s+\n\s+interoperability mode:(?&lt;mode&gt;.+)\s\n\s+loadbalancing:(?&lt;loadbal&gt;.+)\s\n\s+operational state:(?&lt;opstate&gt;.+)\s\n)?"; //set up the patch MatchCollection VSANInfoList = Regex.Matches(block, VSANMatchString); // set up the keyword matches Regex VSANNum = new Regex(@" \d* "); Regex VSANName = new Regex(@"name:\S*"); Regex VSANState = new Regex(@"operational state\S*"); //now we can extract what we need since we know all the VSAN info will be matched to the correct VSAN //match each keyword (name, state, etc), then split and extract the value foreach (Match m in VSANInfoList) { string num=String.Empty; string name=String.Empty; string state=String.Empty; string s = m.ToString(); if (VSANNum.IsMatch(s)) { num=VSANNum.Match(s).ToString().Trim(); } if (VSANName.IsMatch(s)) { string totrim = VSANName.Match(s).ToString().Trim(); string[] strsplit = Regex.Split (totrim, "name:"); name=strsplit[1].Trim(); } if (VSANState.IsMatch(s)) { string totrim = VSANState.Match(s).ToString().Trim(); string[] strsplit=Regex.Split (totrim, "state:"); state=strsplit[1].Trim(); } </code></pre>
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    1. USDavid Green
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    1. COCan you provide some sample input and desired output?
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      1. USJay
 

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