diff options
Diffstat (limited to 'src/Parser/Utils.hs')
-rw-r--r-- | src/Parser/Utils.hs | 59 |
1 files changed, 0 insertions, 59 deletions
diff --git a/src/Parser/Utils.hs b/src/Parser/Utils.hs deleted file mode 100644 index 98694bb..0000000 --- a/src/Parser/Utils.hs +++ /dev/null @@ -1,59 +0,0 @@ -module Parser.Utils - ( getTagsBefore - , getTagsAfter - , getTagsBetween - , getTagAttributes - , getTagAttribute - , getTagTextAfter - , hasClass - ) where - -import Data.List (find, findIndex) -import Data.Maybe (listToMaybe, catMaybes, isJust) -import Data.Text (Text) -import qualified Data.Text as T - -import Text.HTML.TagSoup -import Text.HTML.TagSoup.Match (tagOpen) - -getTagsBefore :: String -> [Tag Text] -> [Tag Text] -getTagsBefore selector = takeWhile (~/= selector) - -getTagsAfter :: String -> [Tag Text] -> [Tag Text] -getTagsAfter selector = drop 1 . dropWhile (~/= selector) - -getTagsBetween :: String -> String -> [Tag Text] -> [Tag Text] -getTagsBetween begin end = getTagsBefore end . getTagsAfter begin - -getTagAttributes :: String -> Text -> [Tag Text] -> [Text] -getTagAttributes selector attribute = - catMaybes - . fmap (maybeTagAttribute attribute) - . filter (~== selector) - -getTagAttribute :: String -> Text -> [Tag Text] -> Maybe Text -getTagAttribute selector attribute = - listToMaybe - . getTagAttributes selector attribute - -getTagTextAfter :: String -> [Tag Text] -> Maybe Text -getTagTextAfter selector tags = - case findIndex (~== selector) tags of - Just index -> fmap T.strip $ safeGetAt (index + 1) tags >>= maybeTagText - Nothing -> Nothing - -maybeTagAttribute :: Text -> Tag Text -> Maybe Text -maybeTagAttribute name (TagOpen _ xs) = - fmap snd . find (\(x, _) -> x == name) $ xs -maybeTagAttribute _ _ = Nothing - -safeGetAt :: Int -> [a] -> Maybe a -safeGetAt index = listToMaybe . drop index - -hasClass :: Text -> Text -> Tag Text -> Bool -hasClass selector className = - tagOpen ((==) selector) (isJust . find matchClass) - where matchClass (name, values) = - ( name == (T.pack "class") - && (isJust . find ((==) className) . T.words $ values) - ) |