public void ContainsSpeedTest()
{
// on my PC you can run 400000 contains lookups in 10ms with lots of other things running at the same time
int l = chars.Length;
TestUtility.AssertExecutionTimeIsLessThan(() => { for (int i = 0; i < 400000; i++) cache.Contains(chars[i % l]); }, 10);
l = 1000;
var c2 = new FastLookupCache<int>(l);
for (int i = 0; i < c2.MaxCapacity; i++)
c2.Enqueue(i);
// for a much larger cache we should get approx. the same timing
TestUtility.AssertExecutionTimeIsLessThan(() => { for (int i = 0; i < 400000; i++) c2.Contains(i % l); }, 10);
}
public void Parse(Stream stream, Action <BracketPipeTextFragment> callback)
{
bool skip = false;
if (Distinct)
{
cache = new FastLookupCache <string>(CacheSize);
}
else
{
cache = null;
}
var filter = GetFilter(Filter);
if (filter == null)
{
throw new FetchoException("{0} is an invalid filter type", Filter);
}
var tag = new Stack <string>();
using (var reader = new HtmlReader(stream))
{
foreach (var c in reader)
{
switch (c.Type)
{
case HtmlTokenType.StartTag:
if (c.Value == ScriptHtmlTag)
{
skip = true;
}
if (c.Value == StyleHtmlTag)
{
skip = true;
}
tag.Push(c.Value);
break;
case HtmlTokenType.EndTag:
if (c.Value == ScriptHtmlTag)
{
skip = false;
}
if (c.Value == StyleHtmlTag)
{
skip = false;
}
if (tag.Count > 0)
{
tag.Pop();
}
break;
default:
break;
}
if (!skip && c.Type == HtmlTokenType.Text)
{
if (c.Value.Length.IsBetween(MinimumLength, MaximumLength))
{
if (cache == null || !cache.Contains(c.Value))
{
cache?.Enqueue(c.Value);
string tagvalue = string.Empty;
if (tag.Count > 0)
{
tagvalue = tag.Peek();
}
var fragment = new BracketPipeTextFragment(tagvalue, c.Value);
if (filter(fragment))
{
callback(fragment);
}
}
}
}
}
}
}
public void Setup()
{
cache = new FastLookupCache<char>(10);
for (int i = 0; i < 10; i++)
cache.Enqueue(chars[i]);
}