1

I need to find the first img tag's src by using regex to the following string. How to do that ?

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Vignesh Kumar A
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Sampath
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2 Answers2

4

Don't use Regex to parse html. Use a real html parser like HtmlAgilityPack

var html = WebUtility.HtmlDecode(yourtext);
var doc = new HtmlAgilityPack.HtmlDocument();
doc.LoadHtml(html);
var urls = doc.DocumentNode.SelectNodes("//img[@src]")
              .Select(img => img.Attributes["src"].Value)
              .ToList();
carla
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L.B
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  • I agree not to parse html using Regex. But in this simple case Regex can be just handy and practical. – Johnny Feb 12 '14 at 08:14
3

Try this

<img.+?src=[\"'](.+?)[\"'].*?>

string src = Regex.Match(original_text, "<img.+?src=[\"'](.+?)[\"'].*?>", RegexOptions.IgnoreCase).Groups[1].Value;

Regex Demo

Vignesh Kumar A
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  • You have to escape < and > by backslashs, so instead of "<" you have to put "\\<". – Georg Feb 12 '14 at 08:00
  • Fantastic.It's working.I also would like to learn Regex like you.Could you tell me where should I start from ? Thanks a lot. :) – Sampath Feb 12 '14 at 08:13