Export parseHStore

[lykahb]

I would like to reuse HStore parsing in the Groundhog ORM library to add support for HStoreList and HStoreMap. The code that does parsing is pure so I can't call fromField.

[lpsmith]

Do you need the attoparsec parser, or would a parseHStoreList :: ByteString -> Either String HStoreList suffice?

[lykahb]

Thank you, function parseHStoreList will be good enough for me.

Perhaps a pure class function like fromField that returns Parser would be more composable. The fromField instances I saw used IO only for getting types from oid.

[lykahb]

Thank you!

[lpsmith]

You are welcome. =)