Parses a chunk of data into a list of Server Sent Event messages.

Returns a tuple containing the list of parsed events and the remaining data from the chunk if it contained an incomplete event.

There are only four possible keys in the event map: :id, :event, :data, :retry.

Examples

iex> ServerSentEvents.parse("event: event\ndata: {\"complete\":")
{[], "event: event\ndata: {\"complete\":"}

iex> ServerSentEvents.parse("event: event\ndata: {\"complete\":true}\n\n")
{[%{event: "event", data: "{\"complete\":true}"}], ""}