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Regex 101 Exercise I10 - Extract repeating hex blocks from a string

Given the string:

PCORR:BLOCK=V5CCH,IA=H'22EF&H'2354&H'4BD4&H'4C4B&H'4D52&H'4DC9;

Extract all the hex numbers in the form “H’xxxx”

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Answer:

Regex regex = new Regex(@"(?<HexBlocks>H'[A-F_0-9]{4})", RegexOptions.IgnoreCase);
String inputString = @"PCORR:BLOCK=V5CCH,IA=H'22EF&H'2354&H'4BD4&H'4C4B&H'4D52&H'4DC9;";
MatchCollection matches = regex.Matches(inputString);
foreach (Match match in matches)
{
    Console.Write("{0} ", match.Value);
}