public void DownloadHtmlPageExperiment()
{
Uri address = UserInputUrl(Text.PromptFormat, Instructions.EnterAUrl);
TraceLine(Text.Subscribing);
TraceLine();
using (var client = new WebClient())
{
var htmlTagsWithIds = client
.DownloadStringObservable(address)
.SelectMany(response =>
Regex.Matches(
response,
@"\< (?<Tag> \w+? ) \s [^\>]*? id= (?<Q> [""']? ) (?<ID> .+? ) \k<Q> .*? \>",
RegexOptions.IgnoreCase
| RegexOptions.ExplicitCapture
| RegexOptions.IgnorePatternWhitespace
| RegexOptions.Singleline)
.Cast<Match>())
.Select(match => new
{
Tag = match.Groups["Tag"].Value,
Id = match.Groups["ID"].Value
});
using (htmlTagsWithIds.Subscribe(ConsoleOutput))
{
TraceLine(Instructions.PressAnyKeyToCancel);
WaitForKey();
}
}
}