<html xmlns="http://www.w3.org/1999/xhtml" xml:lang="en" lang="en">
<head>
<title>title</title>
</head>
<body>
<a href="aaa.asp?id=1"> I want to get this text </a>
<script>
var test=function()
{}
</script>
</body>
</html>
and the result is: line:7, position :4 content:
var test=function()
{}
Have you tried the HTML Agility Pack?
This typically works quite well and gives you a nice intuitive interface into parsing HTML content.
You should be able to use it something like this:
HtmlDocument doc = new HtmlDocument();
doc.Load("yourfile.html");
foreach(HtmlNode link in doc.DocumentElement.SelectNodes("//script)
{
// do something with your script nodes
}