RegEx matching double quotes

Question

This pattern keeps giving me errors as if it is not backing out of the double quotes. I am trying to grab "Gen"

string str = "<div type=\"book\" osisID=\"Gen\">";

Match m = Regex.Match(str, @"<div type=\"book\" osisID=\"(.*?)\">", RegexOptions.IgnoreCase);

if (m.Success) {    
    Console.Write(m.Groups[1].Value);
}

I just need one tag and the namespace will be changing all the time. — user1898657, Apr 01 '13 at 21:41
It looks like you're trying to escape quotes with `\"`. You need to escape quotes with `""` in a verbatim (`@"`) string. That said, don't use Regex to parse HTML! — Jason Watkins, Apr 01 '13 at 21:42
@abatishchev Some people like to [live dangerously...](https://www.youtube.com/watch?v=HkzMA1jrm00) — Chris Sinclair, Apr 01 '13 at 21:42

abatishchev · Accepted Answer · 2013-04-01T21:55:12.320

3

Use XML parsing mechanism to parse XML:

var doc = XDocument.Parse(xml)
var root = doc.Root
var osisId = root.Attribute("osisID").Value;

edited Apr 01 '13 at 21:55

answered Apr 01 '13 at 21:42

abatishchev

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score 3 · Answer 2 · answered Apr 01 '13 at 21:45

3

In C# verbatim strings, you escape a quotation mark with another quotation mark, not with a backslash:

 @"<div type=""book"" osisID=""(.*?)"">"

answered Apr 01 '13 at 21:45

Alan Moore

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score 1 · Answer 3 · edited May 23 '17 at 10:25

1

Assuming you have more complex html than you've just posted and have already read this

string str = "<div type=\"book\" osisID=\"Gen\">";

var doc = new HtmlAgilityPack.HtmlDocument();
doc.LoadHtml(str);
var osisID = doc.DocumentNode
                .SelectSingleNode("//div[@type='book']")
                .Attributes["osisID"]
                .Value;

PS: HtmlAgilityPack

edited May 23 '17 at 10:25

Community

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answered Apr 01 '13 at 21:45

I4V

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RegEx matching double quotes

3 Answers3