/**
* Parse an M3U stream with a filter to remove unwanted entries.
*/
public async Task <ProviderChannels> Parse(StreamReader stream)
{
var currentEntry = new ProviderChannel();
var m3u = new ProviderChannels();
using (stream)
{
string line;
while ((line = await stream.ReadLineAsync()) != null)
{
if (line.StartsWith("#EXTM3U"))
{
// Ignore the header.
}
else
if (line.StartsWith("#EXTINF"))
{
// Populate the entry ID.
currentEntry.ID = extractAttribute(idRegex, line);
// Populate the entry name.
currentEntry.Name = extractAttribute(nameRegex, line);
if (logoRegex != null)
{
// Populate the entry logo.
currentEntry.Logo = extractAttribute(logoRegex, line);
}
if (groupRegex != null)
{
// Populate the entry group.
currentEntry.Group = extractAttribute(groupRegex, line);
}
}
else
if (line.StartsWith("#"))
{
// Ignore comments.
}
else
{
// Populate the entry URL.
currentEntry.URL = line;
// Filter entries from the list.
if ((Filter == null) || Filter.Invoke(currentEntry))
{
// Add the entry to the list.
m3u.Add(currentEntry);
}
// Moving to the next entry.
currentEntry = new ProviderChannel();
}
}
}
return(m3u);
}
public Boolean Predicate(ProviderChannel entry)
{
if (String.IsNullOrEmpty(entry.Group))
{
return(false);
}
return(regex.IsMatch(entry.Group));
}