View Problem
Regex
Matching

Check if a string matches with groups

Display "two" if "one two three" matches /one (.*) three/
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cpp C++/CLI .NET 2.0
Match^ match = Regex::Match("one two three", "one (.*) three");
if (match->Success) Console::WriteLine("{0}", match->Groups[1]->Captures[0]);
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cpp
cmatch what;
if (regex_match("one two three", what, regex("one (.*) three")))
cout << what[1] << endl;
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csharp
using System;
using System.Text.RegularExpressions;

public class RegexBackReference {
public static void Main() {
var oneTwoThree = "one two three";
var pattern = "one (.*) three";

Match match = Regex.Match(oneTwoThree, pattern);

// group 0 is the entire match. 1 is the first backreference
Console.WriteLine(match.Groups[1]);
}
}
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fsharp
let regmatch = (Regex.Match("one two three", "one (.*) three"))
if regmatch.Success then (printfn "%s" (regmatch.Groups.[1].Captures.[0].ToString()))
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go
re, _ := regexp.Compile("one (.*) three")
groups := re.FindStringSubmatch("one two three")
if len(groups) > 0 {
fmt.Println(groups[1])
}

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