Hi fbrewster,
From your description, you're looking for some components or means to parse
HTML string, correct?
What's the input format of the html, are you programmticaly captureing the
html content from web and parse it or are there any existing html files on
local file disk?
Yes, in .net you can still use the MSHTML component(IE DOM parser) to parse
html. It is a COM component, therefore you need to call it via COM interop.
Here are some web articles demonstrating how to use it in .net:
#Parsing html markup text using MSHTML
http://www.eggheadcafe.com/articles/parsinghtml.asp
#Parsing HTML without Using the Browser Control
http://www.codeguru.com/vb/vb_intern...cle.php/c4815/
the MSHTML component load the html into it's DOM memory model and you can
access html elements in the DOM structure just like what you can do when
using javascript to accessing client-side html's DOM collection.
Also, for .net framework specific components, I've ever used the "Html
Agility Pack" which is good one for parsing html:
#.NET Html Agility Pack: How to use malformed HTML just like it was
well-formed XML
http://blogs.msdn.com/smourier/archi...6/04/8265.aspx
#Html Agility Pack
http://www.codeplex.com/htmlagilitypack
it also provide a DOM based model. And it also support XPATH based query
which is quite convenient and powerful.
========sample code using Html Aglity Pack=========== =
private void Parse_Questions ()
{
//get html content from web
HttpWebRequest req = WebRequest.Crea te(txtUrl.Text) as
HttpWebRequest;
HttpWebResponse rep = req.GetResponse () as HttpWebResponse ;
StreamReader sr = new StreamReader(re p.GetResponseSt ream());
//construct html document object and load the html stream
html.HtmlDocume nt hd = new HtmlAgilityPack .HtmlDocument() ;
hd.Load(sr);
sr.Close();
rep.Close();
//use xpath t o query the expected nodes in the htmldocument
html.HtmlNode doc = hd.DocumentNode ;
html.HtmlNodeCo llection divs =
doc.SelectNodes ("//div[@class='questio nbody']");
StreamWriter sw = new StreamWriter(@" e:\temp\htmlout put.htm");
int i = 0;
sw.WriteLine("< html><body>");
foreach (html.HtmlNode node in divs)
{
//....processing code
}
sw.WriteLine("</body></html>");
sw.Close();
}
=============== =============== =========
Hope this helps.
Sincerely,
Steven Cheng
Microsoft MSDN Online Support Lead
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--------------------
From: "fbrewster" <fb*******@news group.nospam>
Subject: Can I use Internet explorers DOM parser?
Date: Mon, 16 Jun 2008 12:53:22 -0500
I'm writing an HTML parser and would like to use Internet Explorers DOM
parser.
Can I use Internet Explorers DOM parser through a web service?
thanks for the help
