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module Text.Pandoc.Readers.Docx.Util (
NameSpaces
, elemName
, isElem
, elemToNameSpaces
, findChildByName
, findChildrenByName
, findAttrByName
) where
import Data.Maybe (mapMaybe)
import Text.XML.Light
type NameSpaces = [(String, String)]
elemToNameSpaces :: Element -> NameSpaces
elemToNameSpaces = mapMaybe attrToNSPair . elAttribs
attrToNSPair :: Attr -> Maybe (String, String)
attrToNSPair (Attr (QName s _ (Just "xmlns")) val) = Just (s, val)
attrToNSPair _ = Nothing
elemName :: NameSpaces -> String -> String -> QName
elemName ns prefix name =
QName name (lookup prefix ns) (if null prefix then Nothing else Just prefix)
isElem :: NameSpaces -> String -> String -> Element -> Bool
isElem ns prefix name element =
let ns' = ns ++ elemToNameSpaces element
in qName (elName element) == name &&
qURI (elName element) == lookup prefix ns'
findChildByName :: NameSpaces -> String -> String -> Element -> Maybe Element
findChildByName ns pref name el =
let ns' = ns ++ elemToNameSpaces el
in findChild (elemName ns' pref name) el
findChildrenByName :: NameSpaces -> String -> String -> Element -> [Element]
findChildrenByName ns pref name el =
let ns' = ns ++ elemToNameSpaces el
in findChildren (elemName ns' pref name) el
findAttrByName :: NameSpaces -> String -> String -> Element -> Maybe String
findAttrByName ns pref name el =
let ns' = ns ++ elemToNameSpaces el
in findAttr (elemName ns' pref name) el
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