// Licensed to the .NET Foundation under one or more agreements.
// The .NET Foundation licenses this file to you under the MIT license.
 
using System.Text.RegularExpressions;
using Microsoft.AspNetCore.Razor.TagHelpers;
 
namespace TagHelpersWebSite.TagHelpers;
 
[HtmlTargetElement("p")]
public class AutoLinkerTagHelper : TagHelper
{
    public override async Task ProcessAsync(TagHelperContext context, TagHelperOutput output)
    {
        var childContent = await output.GetChildContentAsync();
 
        // Find Urls in the content and replace them with their anchor tag equivalent.
        output.Content.AppendHtml(Regex.Replace(
            childContent.GetContent(),
            @"\b(?:https?://|www\.)(\S+)\b",
            "<strong><a target=\"_blank\" href=\"http://$0\">$0</a></strong>"));
    }
}