C# Extension Method: ToPascalCase

A function to convert some text to Pascal case always seems to come in handy when writing code generators. So here is a possible implementation:

using System.Text;
using System.Text.RegularExpressions;

public static class StringExtensions
{
    public static string Capatalize(this string text)
    {
        if(string.IsNullOrEmpty(text))
        {
            return string.Empty;
        }

        int index = 0;
        while(index < text.Length)
        {
            if(!char.IsDigit(text, index))
            {
                break;
            }
            index++;
        }

        if(index < text.Length)
        {
            return string.Format(@"{0}{1}", text.Substring(0, index + 1).ToUpper(), text.Substring(index + 1));
        }

        return text;
    }

    public static string ToPascalCase(this string text)
    {
        if(string.IsNullOrEmpty(text))
        {
            return string.Empty;
        }

        var sb = new StringBuilder();
        bool firstWord = true;
        foreach(object match in Regex.Matches(text, "[A-Za-z0-9]+"))
        {
            if(firstWord)
            {
                sb.Append(match.ToString().Capatalize());
                firstWord = false;
            }
            else
            {
                sb.Append(match.ToString().Capatalize());
            }
        }
        return sb.ToString();
    }
}