From kebabed to pascalized fix Issue#1282 (#1299)

Author: dramlian

src/Humanizer.Tests.Shared/InflectorTests.cs

@@ -123,6 +123,9 @@ public void Hyphenate(string input, string expectedOutput)
         [InlineData("customer_first_name goes here", "CustomerFirstNameGoesHere")]
         [InlineData("customer name", "CustomerName")]
         [InlineData("customer   name", "CustomerName")]
+        [InlineData("customer-first-name", "CustomerFirstName")]
+        [InlineData("_customer-first-name", "CustomerFirstName")]
+        [InlineData(" customer__first--name", "CustomerFirstName")]
         public void Pascalize(string input, string expectedOutput)
         {
             Assert.Equal(expectedOutput, input.Pascalize());

src/Humanizer/InflectorExtensions.cs

@@ -65,8 +65,8 @@ public static string Titleize(this string input)
         /// By default, pascalize converts strings to UpperCamelCase also removing underscores
         /// </summary>
         public static string Pascalize(this string input)
-        {   
-            return Regex.Replace(input, "(?:^|_| +)(.)", match => match.Groups[1].Value.ToUpper());
+        {
+            return Regex.Replace(input, @"(?:[ _-]+|^)([a-zA-Z])", match => match.Groups[1].Value.ToUpper());
         }
 
         /// <summary>