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c# - How to parse a string to find key-value pairs in it

While searching mail in Google, we use the sytax like

from:devcoder hasattachments:true mySearchString on:11-aug

or

mySearchString from:devcoder on:11-aug anotherSearchKeyword

After parsing, I should get the keyvalue pair such as (from, devcoder), (on, 11-aug). What is the best way to implement this parsing in c#.

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To Linq-ify Jason's answer:

string s = "from:devcoder hasattachments:true mySearchString on:11-aug";

var keyValuePairs = s.Split(' ')
    .Select(x => x.Split(':'))
    .Where(x => x.Length == 2)
    .ToDictionary(x => x.First(), x => x.Last());

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