正则表达式：带有HTML的多行问题

Question

I'm playing around with websites and regular expressions in C#. I have this situation:

             <a href="path/to/image">
    <img src="thumbnail"></a>

That outlining is how my application gets the content of a given web site. Tabs and breaklines not the same for each row.

I use gskinner to check the regex (http://gskinner.com/RegExr/) and I have created this regular expression:

            (?i)<a([^>]+)>\W.*</a>

Flags: Multiline

Gskinner shows that the pattern is correct. But when I put in c# (regEx.Matches(...)) it can not find the matches anymore.

Does anyone have any clue how to do this?

Thanks

Answer 1

using HtmlAgilityPack and your sample string

HtmlAgilityPack.HtmlDocument doc = new HtmlAgilityPack.HtmlDocument();
doc.LoadHtml(html);

-

var href = doc.DocumentNode
    .Descendants("a")
    .Select(n => n.Attributes["href"].Value)
    .FirstOrDefault();

var src = doc.DocumentNode
    .Descendants("img")
    .Select(n => n.Attributes["src"].Value)
    .FirstOrDefault();