Unicode regex does not work

Question

I have this string: "asdf" And it is not recognized by this regex: ^[\p{L}]{3,32}$. As far as I know, the \p{L} should match any unicode letter. Why doesn't it? When i replace it with A-Za-z it works fine, but i need unicode characters. How can i fix this?

This works perfectly (link). You didn't forget to double the slash, did you? It wouldn't compile otherwise... You do not need square brackets around \p{L} unless you need to add more characters to the class. — Sergey Kalinichenko
@dasblinkenlight: There is also literal string in C# starts with @ that doesn't need to double the slash. ideone.com/gtbO5t — nhahtdh
@dasblinkenlight -ur input string is wrong! it should have been "\"asdf\"" — Parimal Raj
@AppDeveloper I doubt it, I think the OP used quotes for clarity. After all, [A-Za-z] worked for him, right? — Sergey Kalinichenko

Parimal Raj Parimal Raj · Accepted Answer · 2013-02-07T21:27:19

// [\p{L}]{3,32}

// A character with the Unicode property “letter” (any kind of letter from any language) «[\p{L}]{3,32}» Between 3 and 32 times, as many times as possible, giving back as needed (greedy) «{3,32}»

By definition : " is not a letter in any of the language!

Try this Regex : ^"[\p{L}]{3,32}"$

using System;
using System.Text.RegularExpressions;

public class Test
{
    public static void Main()
    {
        Console.WriteLine(Regex.IsMatch("\"asdf\"", "^\"[\\p{L}]{3,32}\"$"));  //True
    }
}

Unicode regex does not work

1 Answers