X-Git-Url: http://gitweb.michael.orlitzky.com/?p=dead%2Fhalcyon.git;a=blobdiff_plain;f=src%2FTwitter%2FStatus.hs;h=a2e6255f98990e31890beaec1ba4184459da3a60;hp=275e89352fea47e02c453404474c5e6041bfd110;hb=69b8af30f49aaad0f5c051998d2556b9ec291df7;hpb=17dd116706c4a971e1f5c68daa1656af5eff5cd2 diff --git a/src/Twitter/Status.hs b/src/Twitter/Status.hs index 275e893..a2e6255 100644 --- a/src/Twitter/Status.hs +++ b/src/Twitter/Status.hs @@ -1,3 +1,4 @@ +-- |Functions and data for working with Twitter statuses. module Twitter.Status where @@ -7,6 +8,8 @@ import Text.XML.HaXml import Twitter.User import Twitter.Xml +-- |Represents one Twitter status. We don't care about any of their +-- other properties. data Status = Status { status_id :: Integer, created_at :: String, text :: String, @@ -14,8 +17,7 @@ data Status = Status { status_id :: Integer, deriving (Show, Eq) - - +-- |Given some XML content, create a 'Status' from it. status_from_content :: Content -> (Maybe Status) status_from_content content = @@ -38,22 +40,23 @@ status_from_content content = case (reads status_id_data :: [(Integer, String)]) of [] -> Nothing parseresult:_ -> Just (Status (fst parseresult) created_at_data all_text user_object) - + where status_ids = (unique_id content) first_status_id = get_char_data (status_ids !! 0) - + created_ats = (status_created_at content) - first_created_at = get_char_data (created_ats !! 0) + first_created_at = get_char_data (created_ats !! 0) texts = (status_text content) all_text = concat $ catMaybes (map get_char_data texts) - - users = (status_user content) - first_user = user_from_content (users !! 0) + users = (status_user content) + first_user = user_from_content (users !! 0) +-- |Takes an XML String as an argument, and returns the list of +-- statuses that can be parsed from it. parse_statuses :: String -> [Status] parse_statuses xml_data = catMaybes maybe_statuses @@ -64,12 +67,14 @@ parse_statuses xml_data = maybe_statuses = map status_from_content status_elements --- This is a required parameter to the xmlParse function used in --- error reporting. We're not parsing a function, though, so we --- leave it blank. +-- |This is a required parameter to the xmlParse function used in +-- error reporting. We're not parsing a function, though, so we leave +-- it blank. xml_file_name :: String xml_file_name = "" +-- |Returns a nicely-formatted String representing the given 'Status' +-- object. pretty_print :: Status -> String pretty_print status = concat [ name, @@ -85,8 +90,10 @@ pretty_print status = +-- |Given a list of statuses, returns the greatest status_id belonging +-- to one of the statuses in the list. get_max_status_id :: [Status] -> Integer -get_max_status_id statuses = +get_max_status_id statuses = maximum status_ids where - status_ids = map status_id statuses \ No newline at end of file + status_ids = map status_id statuses