从生成的数据提取<script> and process the results

Question

 string Url= "https://www.audiusa.com/dealers-webapp/map/dealer/423E99";   
     HtmlWeb web = new HtmlWeb();
                            ServicePointManager.SecurityProtocol = SecurityProtocolType.Tls12;
                            HtmlDocument doc = web.Load(Url);
     var scriptGoogleTagManager = doc.DocumentNode.SelectNodes("//script").Where(x => x.InnerHtml.Contains("window.Audi.Vars.searchType"));
                            if (scriptGoogleTagManager )
                            {
                                foreach(var tag in scriptGoogleTagManager)
                                {
                                    var s = tag.InnerText;
                                    Regex r = new Regex("\\s+window\\.Audi\\.Vars\\.searchResult\\s+\\=\\s+");
                                    Match m = r.Match(s.ToLower());
                                }
                            }

In above script I want to extract values after window.Audi.Vars.searchResult = and window.Audi.Vars.dealers = .I am facing problem in regex as I dont have much knowledge of it .Kindly help me

Answer 1

I understand you want to get rid of eg
window.Audi.Vars.searchResult =

var extract = s.slice(31); // since the string "window.Audi.Vars.searchResult =" has 31 chars

The slice() method extracts parts of a string and returns the extracted parts in a new string. Use the start and end parameters to specify the part of the string you want to extract. Here we only give the start param and it extracts to the end. The first character has the position 0, the second has position 1, and so on. >br> Regex is imho good when relacing, removing chars in a string here a simpler method works.

Modify your code and post the console result:

 var scriptGoogleTagManager = doc.DocumentNode.SelectNodes("//script").Where(x => x.InnerHtml.Contains("window.Audi.Vars.searchType"));
                    if (scriptGoogleTagManager )
                    {
                        foreach(var tag in scriptGoogleTagManager)
                        {
                            var s = tag.InnerText;
                            console.debug("[content of s] " + s); 
                            var extract = s.slice(31); // since the string
                        }
                    }