ResponseTransformer slow for large pages

[jeremycampbellaustin]

I changed this loop:

var result = preTransform; foreach (var match in transformableMatches) { var idx = result.IndexOf(match, StringComparison.Ordinal); result = result.Remove(idx, match.Length); if(idx == result.Length) continue; if(result[idx] == '\r') result = result.Remove(idx, 1); if (result[idx] == '\n') result = result.Remove(idx, 1); } return result;

To this loop: StringBuilder resultNew = new StringBuilder(); using (StringReader stringReader = new StringReader(preTransform)) { string line; while ((line = stringReader.ReadLine()) != null) { if (!Filtered(transformableMatches, line)) { resultNew.AppendLine(line); } } } return resultNew.ToString();

private bool Filtered(List transformableMatches, string line) { int indexOf = -1; for(int i = 0; i < transformableMatches.Count; ++i) { if (line.Contains(transformableMatches[i])) { indexOf = i; break; } }

        return indexOf >= 0;
    }

Also this line: preTransform = preTransform.Insert(insertionIdx + 1, resource.TransformedMarkupTag(transform));

To this line: preTransform = preTransform.Insert(insertionIdx + 1, String.Format("{0}{1}", resource.TransformedMarkupTag(transform), Environment.NewLine));

Server processing time went from ~10sec to less than 1sec.

If someone peer programs with me and shows me the ropes, how to run the tests, etc. I will update the source.