{-# OPTIONS -fno-warn-incomplete-patterns #-}
module Text.Feed.Constructor
( FeedKind(..)
, newFeed
, feedFromRSS
, feedFromAtom
, feedFromRDF
, feedFromXML
, getFeedKind
, FeedSetter
, addItem
, withFeedTitle
, withFeedHome
, withFeedHTML
, withFeedDescription
, withFeedPubDate
, withFeedLastUpdate
, withFeedDate
, withFeedLogoLink
, withFeedLanguage
, withFeedCategories
, withFeedGenerator
, withFeedItems
, newItem
, getItemKind
, atomEntryToItem
, rssItemToItem
, rdfItemToItem
, ItemSetter
, withItemTitle
, withItemLink
, withItemPubDate
, withItemDate
, withItemAuthor
, withItemCommentLink
, withItemEnclosure
, withItemFeedLink
, withItemId
, withItemCategories
, withItemDescription
, withItemRights
) where
import Prelude.Compat
import Text.Feed.Types as Feed.Types
import Text.Atom.Feed as Atom
import Text.DublinCore.Types
import Text.RSS.Syntax as RSS
import Text.RSS1.Syntax as RSS1
import Data.XML.Compat
import Data.XML.Types as XML
import Data.Char (toLower)
import Data.Maybe (fromMaybe, mapMaybe)
import Data.Text (Text, pack)
newFeed :: FeedKind -> Feed.Types.Feed
newFeed :: FeedKind -> Feed
newFeed FeedKind
fk =
case FeedKind
fk of
FeedKind
AtomKind ->
Feed -> Feed
AtomFeed
(Text -> TextContent -> Text -> Feed
Atom.nullFeed
Text
"feed-id-not-filled-in"
(Text -> TextContent
TextString Text
"dummy-title")
Text
"dummy-and-bogus-update-date")
RSSKind Maybe Text
mbV ->
let def :: RSS
def = Text -> Text -> RSS
RSS.nullRSS Text
"dummy-title" Text
"default-channel-url"
in RSS -> Feed
RSSFeed (RSS -> Feed) -> RSS -> Feed
forall a b. (a -> b) -> a -> b
$ RSS -> (Text -> RSS) -> Maybe Text -> RSS
forall b a. b -> (a -> b) -> Maybe a -> b
maybe RSS
def (\Text
v -> RSS
def {RSS.rssVersion = v}) Maybe Text
mbV
RDFKind Maybe Text
mbV ->
let def :: Feed
def = Text -> Text -> Feed
RSS1.nullFeed Text
"default-channel-url" Text
"dummy-title"
in Feed -> Feed
RSS1Feed (Feed -> Feed) -> Feed -> Feed
forall a b. (a -> b) -> a -> b
$ Feed -> (Text -> Feed) -> Maybe Text -> Feed
forall b a. b -> (a -> b) -> Maybe a -> b
maybe Feed
def (\Text
v -> Feed
def {RSS1.feedVersion = v}) Maybe Text
mbV
feedFromRSS :: RSS.RSS -> Feed.Types.Feed
= RSS -> Feed
RSSFeed
feedFromAtom :: Atom.Feed -> Feed.Types.Feed
feedFromAtom :: Feed -> Feed
feedFromAtom = Feed -> Feed
AtomFeed
feedFromRDF :: RSS1.Feed -> Feed.Types.Feed
feedFromRDF :: Feed -> Feed
feedFromRDF = Feed -> Feed
RSS1Feed
feedFromXML :: XML.Element -> Feed.Types.Feed
feedFromXML :: Element -> Feed
feedFromXML = Element -> Feed
XMLFeed
getFeedKind :: Feed.Types.Feed -> FeedKind
getFeedKind :: Feed -> FeedKind
getFeedKind Feed
f =
case Feed
f of
Feed.Types.AtomFeed {} -> FeedKind
AtomKind
Feed.Types.RSSFeed RSS
r ->
Maybe Text -> FeedKind
RSSKind
(case RSS -> Text
RSS.rssVersion RSS
r of
Text
"2.0" -> Maybe Text
forall a. Maybe a
Nothing
Text
v -> Text -> Maybe Text
forall a. a -> Maybe a
Just Text
v)
Feed.Types.RSS1Feed Feed
r ->
Maybe Text -> FeedKind
RDFKind
(case Feed -> Text
RSS1.feedVersion Feed
r of
Text
"1.0" -> Maybe Text
forall a. Maybe a
Nothing
Text
v -> Text -> Maybe Text
forall a. a -> Maybe a
Just Text
v)
Feed.Types.XMLFeed {} -> Maybe Text -> FeedKind
RSSKind (Text -> Maybe Text
forall a. a -> Maybe a
Just Text
"2.0")
addItem :: Feed.Types.Item -> Feed.Types.Feed -> Feed.Types.Feed
addItem :: Item -> Feed -> Feed
addItem Item
it Feed
f =
case (Item
it, Feed
f) of
(Feed.Types.AtomItem Entry
e, Feed.Types.AtomFeed Feed
fe) ->
Feed -> Feed
Feed.Types.AtomFeed Feed
fe {Atom.feedEntries = e : Atom.feedEntries fe}
(Feed.Types.RSSItem RSSItem
e, Feed.Types.RSSFeed RSS
r) ->
RSS -> Feed
Feed.Types.RSSFeed
RSS
r {RSS.rssChannel = (RSS.rssChannel r) {RSS.rssItems = e : RSS.rssItems (RSS.rssChannel r)}}
(Feed.Types.RSS1Item Item
e, Feed.Types.RSS1Feed Feed
r)
-> Feed -> Feed
Feed.Types.RSS1Feed Feed
r {RSS1.feedItems = e : RSS1.feedItems r}
(Item, Feed)
_ ->
[Char] -> Feed
forall a. HasCallStack => [Char] -> a
error [Char]
"addItem: currently unable to automatically convert items from one feed type to another"
withFeedItems :: FeedSetter [Feed.Types.Item]
withFeedItems :: FeedSetter [Item]
withFeedItems [Item]
is Feed
fe =
(Item -> Feed -> Feed) -> Feed -> [Item] -> Feed
forall a b. (a -> b -> b) -> b -> [a] -> b
forall (t :: * -> *) a b.
Foldable t =>
(a -> b -> b) -> b -> t a -> b
foldr
Item -> Feed -> Feed
addItem
(case Feed
fe of
Feed.Types.AtomFeed Feed
f -> Feed -> Feed
Feed.Types.AtomFeed Feed
f {Atom.feedEntries = []}
Feed.Types.RSSFeed RSS
f -> RSS -> Feed
Feed.Types.RSSFeed RSS
f {rssChannel = (rssChannel f) {rssItems = []}}
Feed.Types.RSS1Feed Feed
f -> Feed -> Feed
Feed.Types.RSS1Feed Feed
f {feedItems = []})
[Item]
is
newItem :: FeedKind -> Feed.Types.Item
newItem :: FeedKind -> Item
newItem FeedKind
fk =
case FeedKind
fk of
FeedKind
AtomKind ->
Entry -> Item
Feed.Types.AtomItem (Entry -> Item) -> Entry -> Item
forall a b. (a -> b) -> a -> b
$
Text -> TextContent -> Text -> Entry
Atom.nullEntry
Text
"entry-id-not-filled-in"
(Text -> TextContent
TextString Text
"dummy-entry-title")
Text
"dummy-and-bogus-entry-update-date"
RSSKind {} -> RSSItem -> Item
Feed.Types.RSSItem (RSSItem -> Item) -> RSSItem -> Item
forall a b. (a -> b) -> a -> b
$ Text -> RSSItem
RSS.nullItem Text
"dummy-rss-item-title"
RDFKind {} ->
Item -> Item
Feed.Types.RSS1Item (Item -> Item) -> Item -> Item
forall a b. (a -> b) -> a -> b
$ Text -> Text -> Text -> Item
RSS1.nullItem Text
"dummy-item-uri" Text
"dummy-item-title" Text
"dummy-item-link"
getItemKind :: Feed.Types.Item -> FeedKind
getItemKind :: Item -> FeedKind
getItemKind Item
f =
case Item
f of
Feed.Types.AtomItem {} -> FeedKind
AtomKind
Feed.Types.RSSItem {} -> Maybe Text -> FeedKind
RSSKind (Text -> Maybe Text
forall a. a -> Maybe a
Just Text
"2.0")
Feed.Types.RSS1Item {} -> Maybe Text -> FeedKind
RDFKind (Text -> Maybe Text
forall a. a -> Maybe a
Just Text
"1.0")
Feed.Types.XMLItem {} -> Maybe Text -> FeedKind
RSSKind (Text -> Maybe Text
forall a. a -> Maybe a
Just Text
"2.0")
type FeedSetter a = a -> Feed.Types.Feed -> Feed.Types.Feed
withFeedTitle :: FeedSetter Text
withFeedTitle :: FeedSetter Text
withFeedTitle Text
tit Feed
fe =
case Feed
fe of
Feed.Types.AtomFeed Feed
f -> Feed -> Feed
Feed.Types.AtomFeed Feed
f {feedTitle = TextString tit}
Feed.Types.RSSFeed RSS
f -> RSS -> Feed
Feed.Types.RSSFeed RSS
f {rssChannel = (rssChannel f) {rssTitle = tit}}
Feed.Types.RSS1Feed Feed
f ->
Feed -> Feed
Feed.Types.RSS1Feed Feed
f {feedChannel = (feedChannel f) {channelTitle = tit}}
Feed.Types.XMLFeed Element
f ->
Element -> Feed
Feed.Types.XMLFeed (Element -> Feed) -> Element -> Feed
forall a b. (a -> b) -> a -> b
$
(Element -> Maybe Element) -> Element -> Element
mapMaybeChildren
(\Element
e ->
if Element -> Name
elementName Element
e Name -> Name -> Bool
forall a. Eq a => a -> a -> Bool
== Name
"channel"
then Element -> Maybe Element
forall a. a -> Maybe a
Just
((Element -> Maybe Element) -> Element -> Element
mapMaybeChildren
(\Element
e2 ->
if Element -> Name
elementName Element
e2 Name -> Name -> Bool
forall a. Eq a => a -> a -> Bool
== Name
"title"
then Element -> Maybe Element
forall a. a -> Maybe a
Just (Name -> Text -> Element
forall t. ToNode t => Name -> t -> Element
unode Name
"title" Text
tit)
else Maybe Element
forall a. Maybe a
Nothing)
Element
e)
else Maybe Element
forall a. Maybe a
Nothing)
Element
f
withFeedHome :: FeedSetter URLString
withFeedHome :: FeedSetter Text
withFeedHome Text
url Feed
fe =
case Feed
fe of
Feed.Types.AtomFeed Feed
f -> Feed -> Feed
Feed.Types.AtomFeed Feed
f {feedLinks = newSelf : Atom.feedLinks f}
Feed.Types.RSSFeed RSS
f -> RSS -> Feed
Feed.Types.RSSFeed RSS
f {rssChannel = (rssChannel f) {rssLink = url}}
Feed.Types.RSS1Feed Feed
f ->
Feed -> Feed
Feed.Types.RSS1Feed Feed
f {feedChannel = (feedChannel f) {channelURI = url}}
Feed.Types.XMLFeed Element
f ->
Element -> Feed
Feed.Types.XMLFeed (Element -> Feed) -> Element -> Feed
forall a b. (a -> b) -> a -> b
$
(Element -> Maybe Element) -> Element -> Element
mapMaybeChildren
(\Element
e ->
if Element -> Name
elementName Element
e Name -> Name -> Bool
forall a. Eq a => a -> a -> Bool
== Name
"channel"
then Element -> Maybe Element
forall a. a -> Maybe a
Just
((Element -> Maybe Element) -> Element -> Element
mapMaybeChildren
(\Element
e2 ->
if Element -> Name
elementName Element
e2 Name -> Name -> Bool
forall a. Eq a => a -> a -> Bool
== Name
"link"
then Element -> Maybe Element
forall a. a -> Maybe a
Just (Name -> Text -> Element
forall t. ToNode t => Name -> t -> Element
unode Name
"link" Text
url)
else Maybe Element
forall a. Maybe a
Nothing)
Element
e)
else Maybe Element
forall a. Maybe a
Nothing)
Element
f
where
newSelf :: Link
newSelf = (Text -> Link
nullLink Text
url) {linkRel = Just (Left "self"), linkType = Just "application/atom+xml"}
withFeedHTML :: FeedSetter URLString
withFeedHTML :: FeedSetter Text
withFeedHTML Text
url Feed
fe =
case Feed
fe of
Feed.Types.AtomFeed Feed
f -> Feed -> Feed
Feed.Types.AtomFeed Feed
f {feedLinks = newAlt : Atom.feedLinks f}
Feed.Types.RSSFeed RSS
f -> RSS -> Feed
Feed.Types.RSSFeed RSS
f {rssChannel = (rssChannel f) {rssLink = url}}
Feed.Types.RSS1Feed Feed
f ->
Feed -> Feed
Feed.Types.RSS1Feed Feed
f {feedChannel = (feedChannel f) {channelLink = url}}
Feed.Types.XMLFeed Element
f ->
Element -> Feed
Feed.Types.XMLFeed (Element -> Feed) -> Element -> Feed
forall a b. (a -> b) -> a -> b
$
(Element -> Maybe Element) -> Element -> Element
mapMaybeChildren
(\Element
e ->
if Element -> Name
elementName Element
e Name -> Name -> Bool
forall a. Eq a => a -> a -> Bool
== Name
"channel"
then Element -> Maybe Element
forall a. a -> Maybe a
Just
((Element -> Maybe Element) -> Element -> Element
mapMaybeChildren
(\Element
e2 ->
if Element -> Name
elementName Element
e2 Name -> Name -> Bool
forall a. Eq a => a -> a -> Bool
== Name
"link"
then Element -> Maybe Element
forall a. a -> Maybe a
Just (Name -> Text -> Element
forall t. ToNode t => Name -> t -> Element
unode Name
"link" Text
url)
else Maybe Element
forall a. Maybe a
Nothing)
Element
e)
else Maybe Element
forall a. Maybe a
Nothing)
Element
f
where
newAlt :: Link
newAlt = (Text -> Link
nullLink Text
url) {linkRel = Just (Left "alternate"), linkType = Just "text/html"}
withFeedDescription :: FeedSetter Text
withFeedDescription :: FeedSetter Text
withFeedDescription Text
desc Feed
fe =
case Feed
fe of
Feed.Types.AtomFeed Feed
f -> Feed -> Feed
Feed.Types.AtomFeed Feed
f {feedSubtitle = Just (TextString desc)}
Feed.Types.RSSFeed RSS
f ->
RSS -> Feed
Feed.Types.RSSFeed RSS
f {rssChannel = (rssChannel f) {rssDescription = desc}}
Feed.Types.RSS1Feed Feed
f ->
Feed -> Feed
Feed.Types.RSS1Feed Feed
f {feedChannel = (feedChannel f) {channelDesc = desc}}
Feed.Types.XMLFeed Element
f ->
Element -> Feed
Feed.Types.XMLFeed (Element -> Feed) -> Element -> Feed
forall a b. (a -> b) -> a -> b
$
(Element -> Maybe Element) -> Element -> Element
mapMaybeChildren
(\Element
e ->
if Element -> Name
elementName Element
e Name -> Name -> Bool
forall a. Eq a => a -> a -> Bool
== Name
"channel"
then Element -> Maybe Element
forall a. a -> Maybe a
Just
((Element -> Maybe Element) -> Element -> Element
mapMaybeChildren
(\Element
e2 ->
if Element -> Name
elementName Element
e2 Name -> Name -> Bool
forall a. Eq a => a -> a -> Bool
== Name
"description"
then Element -> Maybe Element
forall a. a -> Maybe a
Just (Name -> Text -> Element
forall t. ToNode t => Name -> t -> Element
unode Name
"description" Text
desc)
else Maybe Element
forall a. Maybe a
Nothing)
Element
e)
else Maybe Element
forall a. Maybe a
Nothing)
Element
f
withFeedPubDate :: FeedSetter Text
withFeedPubDate :: FeedSetter Text
withFeedPubDate Text
dateStr Feed
fe =
case Feed
fe of
Feed.Types.AtomFeed Feed
f -> Feed -> Feed
Feed.Types.AtomFeed Feed
f {feedUpdated = dateStr}
Feed.Types.RSSFeed RSS
f ->
RSS -> Feed
Feed.Types.RSSFeed RSS
f {rssChannel = (rssChannel f) {rssPubDate = Just dateStr}}
Feed.Types.RSS1Feed Feed
f ->
Feed -> Feed
Feed.Types.RSS1Feed (Feed -> Feed) -> Feed -> Feed
forall a b. (a -> b) -> a -> b
$
case (DCItem -> Bool) -> [DCItem] -> ([DCItem], [DCItem])
forall a. (a -> Bool) -> [a] -> ([a], [a])
break DCItem -> Bool
isDate ([DCItem] -> ([DCItem], [DCItem]))
-> [DCItem] -> ([DCItem], [DCItem])
forall a b. (a -> b) -> a -> b
$ Channel -> [DCItem]
RSS1.channelDC (Feed -> Channel
RSS1.feedChannel Feed
f) of
([DCItem]
as, DCItem
dci:[DCItem]
bs) ->
Feed
f
{ RSS1.feedChannel =
(RSS1.feedChannel f) {RSS1.channelDC = as ++ dci {dcText = dateStr} : bs}
}
([DCItem]
_, []) ->
Feed
f
{ RSS1.feedChannel =
(RSS1.feedChannel f)
{ RSS1.channelDC =
DCItem {dcElt = DC_Date, dcText = dateStr} :
RSS1.channelDC (RSS1.feedChannel f)
}
}
Feed.Types.XMLFeed Element
f ->
Element -> Feed
Feed.Types.XMLFeed (Element -> Feed) -> Element -> Feed
forall a b. (a -> b) -> a -> b
$
(Element -> Maybe Element) -> Element -> Element
mapMaybeChildren
(\Element
e ->
if Element -> Name
elementName Element
e Name -> Name -> Bool
forall a. Eq a => a -> a -> Bool
== Name
"channel"
then Element -> Maybe Element
forall a. a -> Maybe a
Just
((Element -> Maybe Element) -> Element -> Element
mapMaybeChildren
(\Element
e2 ->
if Element -> Name
elementName Element
e2 Name -> Name -> Bool
forall a. Eq a => a -> a -> Bool
== Name
"pubDate"
then Element -> Maybe Element
forall a. a -> Maybe a
Just (Name -> Text -> Element
forall t. ToNode t => Name -> t -> Element
unode Name
"pubDate" Text
dateStr)
else Maybe Element
forall a. Maybe a
Nothing)
Element
e)
else Maybe Element
forall a. Maybe a
Nothing)
Element
f
where
isDate :: DCItem -> Bool
isDate DCItem
dc = DCItem -> DCInfo
dcElt DCItem
dc DCInfo -> DCInfo -> Bool
forall a. Eq a => a -> a -> Bool
== DCInfo
DC_Date
withFeedLastUpdate :: FeedSetter DateString
withFeedLastUpdate :: FeedSetter Text
withFeedLastUpdate Text
dateStr Feed
fe =
case Feed
fe of
Feed.Types.AtomFeed Feed
f -> Feed -> Feed
Feed.Types.AtomFeed Feed
f {feedUpdated = dateStr}
Feed.Types.RSSFeed RSS
f ->
RSS -> Feed
Feed.Types.RSSFeed RSS
f {rssChannel = (rssChannel f) {rssLastUpdate = Just dateStr}}
Feed.Types.RSS1Feed Feed
f ->
Feed -> Feed
Feed.Types.RSS1Feed (Feed -> Feed) -> Feed -> Feed
forall a b. (a -> b) -> a -> b
$
case (DCItem -> Bool) -> [DCItem] -> ([DCItem], [DCItem])
forall a. (a -> Bool) -> [a] -> ([a], [a])
break DCItem -> Bool
isDate ([DCItem] -> ([DCItem], [DCItem]))
-> [DCItem] -> ([DCItem], [DCItem])
forall a b. (a -> b) -> a -> b
$ Channel -> [DCItem]
RSS1.channelDC (Feed -> Channel
RSS1.feedChannel Feed
f) of
([DCItem]
as, DCItem
dci:[DCItem]
bs) ->
Feed
f
{ RSS1.feedChannel =
(RSS1.feedChannel f) {RSS1.channelDC = as ++ dci {dcText = dateStr} : bs}
}
([DCItem]
_, []) ->
Feed
f
{ RSS1.feedChannel =
(RSS1.feedChannel f)
{ RSS1.channelDC =
DCItem {dcElt = DC_Date, dcText = dateStr} :
RSS1.channelDC (RSS1.feedChannel f)
}
}
Feed.Types.XMLFeed Element
f ->
Element -> Feed
Feed.Types.XMLFeed (Element -> Feed) -> Element -> Feed
forall a b. (a -> b) -> a -> b
$
(Element -> Maybe Element) -> Element -> Element
mapMaybeChildren
(\Element
e ->
if Element -> Name
elementName Element
e Name -> Name -> Bool
forall a. Eq a => a -> a -> Bool
== Name
"channel"
then Element -> Maybe Element
forall a. a -> Maybe a
Just
((Element -> Maybe Element) -> Element -> Element
mapMaybeChildren
(\Element
e2 ->
if Element -> Name
elementName Element
e2 Name -> Name -> Bool
forall a. Eq a => a -> a -> Bool
== Name
"lastUpdate"
then Element -> Maybe Element
forall a. a -> Maybe a
Just (Name -> Text -> Element
forall t. ToNode t => Name -> t -> Element
unode Name
"lastUpdate" Text
dateStr)
else Maybe Element
forall a. Maybe a
Nothing)
Element
e)
else Maybe Element
forall a. Maybe a
Nothing)
Element
f
where
isDate :: DCItem -> Bool
isDate DCItem
dc = DCItem -> DCInfo
dcElt DCItem
dc DCInfo -> DCInfo -> Bool
forall a. Eq a => a -> a -> Bool
== DCInfo
DC_Date
withFeedDate :: FeedSetter DateString
withFeedDate :: FeedSetter Text
withFeedDate Text
dt Feed
f = FeedSetter Text
withFeedPubDate Text
dt (FeedSetter Text
withFeedLastUpdate Text
dt Feed
f)
withFeedLogoLink :: URLString -> FeedSetter URLString
withFeedLogoLink :: Text -> FeedSetter Text
withFeedLogoLink Text
imgURL Text
lnk Feed
fe =
case Feed
fe of
Feed.Types.AtomFeed Feed
f ->
Feed -> Feed
Feed.Types.AtomFeed Feed
f {feedLogo = Just imgURL, feedLinks = newSelf : Atom.feedLinks f}
Feed.Types.RSSFeed RSS
f ->
RSS -> Feed
Feed.Types.RSSFeed
RSS
f
{ rssChannel =
(rssChannel f) {rssImage = Just $ RSS.nullImage imgURL (rssTitle (rssChannel f)) lnk}
}
Feed.Types.RSS1Feed Feed
f ->
Feed -> Feed
Feed.Types.RSS1Feed (Feed -> Feed) -> Feed -> Feed
forall a b. (a -> b) -> a -> b
$
Feed
f
{ feedImage = Just $ RSS1.nullImage imgURL (RSS1.channelTitle (RSS1.feedChannel f)) lnk
, feedChannel = (feedChannel f) {channelImageURI = Just imgURL}
}
Feed.Types.XMLFeed Element
f ->
Element -> Feed
Feed.Types.XMLFeed (Element -> Feed) -> Element -> Feed
forall a b. (a -> b) -> a -> b
$
(Element -> Maybe Element) -> Element -> Element
mapMaybeChildren
(\Element
e ->
if Element -> Name
elementName Element
e Name -> Name -> Bool
forall a. Eq a => a -> a -> Bool
== Name
"channel"
then Element -> Maybe Element
forall a. a -> Maybe a
Just
((Element -> Maybe Element) -> Element -> Element
mapMaybeChildren
(\Element
e2 ->
if Element -> Name
elementName Element
e2 Name -> Name -> Bool
forall a. Eq a => a -> a -> Bool
== Name
"image"
then Element -> Maybe Element
forall a. a -> Maybe a
Just
(Name -> [Element] -> Element
forall t. ToNode t => Name -> t -> Element
unode
Name
"image"
[Name -> Text -> Element
forall t. ToNode t => Name -> t -> Element
unode Name
"url" Text
imgURL, Name -> Text -> Element
forall t. ToNode t => Name -> t -> Element
unode Name
"title" Text
title, Name -> Text -> Element
forall t. ToNode t => Name -> t -> Element
unode Name
"link" Text
lnk])
else Maybe Element
forall a. Maybe a
Nothing)
Element
e)
else Maybe Element
forall a. Maybe a
Nothing)
Element
f
where title :: Text
title =
case (Element -> Maybe Element)
-> Maybe Element -> Maybe (Maybe Element)
forall a b. (a -> b) -> Maybe a -> Maybe b
forall (f :: * -> *) a b. Functor f => (a -> b) -> f a -> f b
fmap (Name -> Element -> Maybe Element
findChild Name
"title") (Name -> Element -> Maybe Element
findChild Name
"channel" Element
f) of
Just (Just Element
e1) -> Element -> Text
strContent Element
e1
Maybe (Maybe Element)
_ -> Text
"feed_title"
where
newSelf :: Link
newSelf = (Text -> Link
nullLink Text
lnk) {linkRel = Just (Left "self"), linkType = Just "application/atom+xml"}
withFeedLanguage :: FeedSetter Text
withFeedLanguage :: FeedSetter Text
withFeedLanguage Text
lang Feed
fe =
case Feed
fe of
Feed.Types.AtomFeed Feed
f -> Feed -> Feed
Feed.Types.AtomFeed Feed
f {Atom.feedAttrs = langAttr : Atom.feedAttrs f}
where langAttr :: Attr
langAttr = (Name
name, [Text -> Content
ContentText Text
lang])
name :: Name
name = Name {nameLocalName :: Text
nameLocalName = Text
"lang", nameNamespace :: Maybe Text
nameNamespace = Maybe Text
forall a. Maybe a
Nothing, namePrefix :: Maybe Text
namePrefix = Text -> Maybe Text
forall a. a -> Maybe a
Just Text
"xml"}
Feed.Types.RSSFeed RSS
f ->
RSS -> Feed
Feed.Types.RSSFeed RSS
f {rssChannel = (rssChannel f) {rssLanguage = Just lang}}
Feed.Types.RSS1Feed Feed
f ->
Feed -> Feed
Feed.Types.RSS1Feed (Feed -> Feed) -> Feed -> Feed
forall a b. (a -> b) -> a -> b
$
case (DCItem -> Bool) -> [DCItem] -> ([DCItem], [DCItem])
forall a. (a -> Bool) -> [a] -> ([a], [a])
break DCItem -> Bool
isLang ([DCItem] -> ([DCItem], [DCItem]))
-> [DCItem] -> ([DCItem], [DCItem])
forall a b. (a -> b) -> a -> b
$ Channel -> [DCItem]
RSS1.channelDC (Feed -> Channel
RSS1.feedChannel Feed
f) of
([DCItem]
as, DCItem
dci:[DCItem]
bs) ->
Feed
f
{ RSS1.feedChannel =
(RSS1.feedChannel f) {RSS1.channelDC = as ++ dci {dcText = lang} : bs}
}
([DCItem]
_, []) ->
Feed
f
{ RSS1.feedChannel =
(RSS1.feedChannel f)
{ RSS1.channelDC =
DCItem {dcElt = DC_Language, dcText = lang} :
RSS1.channelDC (RSS1.feedChannel f)
}
}
Feed.Types.XMLFeed Element
f ->
Element -> Feed
Feed.Types.XMLFeed (Element -> Feed) -> Element -> Feed
forall a b. (a -> b) -> a -> b
$
(Element -> Maybe Element) -> Element -> Element
mapMaybeChildren
(\Element
e ->
if Element -> Name
elementName Element
e Name -> Name -> Bool
forall a. Eq a => a -> a -> Bool
== Name
"channel"
then Element -> Maybe Element
forall a. a -> Maybe a
Just
((Element -> Maybe Element) -> Element -> Element
mapMaybeChildren
(\Element
e2 ->
if Element -> Name
elementName Element
e2 Name -> Name -> Bool
forall a. Eq a => a -> a -> Bool
== Name
"language"
then Element -> Maybe Element
forall a. a -> Maybe a
Just (Name -> Text -> Element
forall t. ToNode t => Name -> t -> Element
unode Name
"language" Text
lang)
else Maybe Element
forall a. Maybe a
Nothing)
Element
e)
else Maybe Element
forall a. Maybe a
Nothing)
Element
f
where
isLang :: DCItem -> Bool
isLang DCItem
dc = DCItem -> DCInfo
dcElt DCItem
dc DCInfo -> DCInfo -> Bool
forall a. Eq a => a -> a -> Bool
== DCInfo
DC_Language
withFeedCategories :: FeedSetter [(Text, Maybe Text)]
withFeedCategories :: FeedSetter [(Text, Maybe Text)]
withFeedCategories [(Text, Maybe Text)]
cats Feed
fe =
case Feed
fe of
Feed.Types.AtomFeed Feed
f ->
Feed -> Feed
Feed.Types.AtomFeed
Feed
f
{ Atom.feedCategories =
map (\(Text
t, Maybe Text
mb) -> (Text -> Category
Atom.newCategory Text
t) {Atom.catScheme = mb}) cats ++ feedCategories f
}
Feed.Types.RSSFeed RSS
f ->
RSS -> Feed
Feed.Types.RSSFeed
RSS
f
{ rssChannel =
(rssChannel f)
{ RSS.rssCategories =
map (\(Text
t, Maybe Text
mb) -> (Text -> RSSCategory
RSS.newCategory Text
t) {RSS.rssCategoryDomain = mb}) cats ++
RSS.rssCategories (rssChannel f)
}
}
Feed.Types.RSS1Feed Feed
f ->
Feed -> Feed
Feed.Types.RSS1Feed
Feed
f
{ feedChannel =
(feedChannel f)
{ RSS1.channelDC =
map (\(Text
t, Maybe Text
_) -> DCItem {dcElt :: DCInfo
dcElt = DCInfo
DC_Subject, dcText :: Text
dcText = Text
t}) cats ++
RSS1.channelDC (feedChannel f)
}
}
Feed.Types.XMLFeed Element
f ->
Element -> Feed
Feed.Types.XMLFeed (Element -> Feed) -> Element -> Feed
forall a b. (a -> b) -> a -> b
$
(Element -> Maybe Element) -> Element -> Element
mapMaybeChildren
(\Element
e ->
if Element -> Name
elementName Element
e Name -> Name -> Bool
forall a. Eq a => a -> a -> Bool
== Name
"channel"
then Element -> Maybe Element
forall a. a -> Maybe a
Just
(((Text, Maybe Text) -> Element -> Element)
-> Element -> [(Text, Maybe Text)] -> Element
forall a b. (a -> b -> b) -> b -> [a] -> b
forall (t :: * -> *) a b.
Foldable t =>
(a -> b -> b) -> b -> t a -> b
foldr
(\(Text
t, Maybe Text
mb) Element
acc ->
Element -> Element -> Element
addChild
(Name -> [Attr] -> Element
forall t. ToNode t => Name -> t -> Element
unode
Name
"category"
((Attr -> [Attr])
-> (Text -> Attr -> [Attr]) -> Maybe Text -> Attr -> [Attr]
forall b a. b -> (a -> b) -> Maybe a -> b
maybe (Attr -> [Attr] -> [Attr]
forall a. a -> [a] -> [a]
: []) (\Text
v Attr
x -> [Text -> Text -> Attr
mkAttr Text
"domain" Text
v, Attr
x]) Maybe Text
mb (Text -> Text -> Attr
mkAttr Text
"term" Text
t)))
Element
acc)
Element
e
[(Text, Maybe Text)]
cats)
else Maybe Element
forall a. Maybe a
Nothing)
Element
f
withFeedGenerator :: FeedSetter (Text, Maybe URLString)
withFeedGenerator :: FeedSetter (Text, Maybe Text)
withFeedGenerator (Text
gen, Maybe Text
mbURI) Feed
fe =
case Feed
fe of
Feed.Types.AtomFeed Feed
f ->
Feed -> Feed
Feed.Types.AtomFeed (Feed -> Feed) -> Feed -> Feed
forall a b. (a -> b) -> a -> b
$
Feed
f {Atom.feedGenerator = Just ((Atom.nullGenerator gen) {Atom.genURI = mbURI})}
Feed.Types.RSSFeed RSS
f ->
RSS -> Feed
Feed.Types.RSSFeed RSS
f {rssChannel = (rssChannel f) {rssGenerator = Just gen}}
Feed.Types.RSS1Feed Feed
f ->
Feed -> Feed
Feed.Types.RSS1Feed (Feed -> Feed) -> Feed -> Feed
forall a b. (a -> b) -> a -> b
$
case (DCItem -> Bool) -> [DCItem] -> ([DCItem], [DCItem])
forall a. (a -> Bool) -> [a] -> ([a], [a])
break DCItem -> Bool
isSource ([DCItem] -> ([DCItem], [DCItem]))
-> [DCItem] -> ([DCItem], [DCItem])
forall a b. (a -> b) -> a -> b
$ Channel -> [DCItem]
RSS1.channelDC (Feed -> Channel
RSS1.feedChannel Feed
f) of
([DCItem]
as, DCItem
dci:[DCItem]
bs) ->
Feed
f
{ RSS1.feedChannel =
(RSS1.feedChannel f) {RSS1.channelDC = as ++ dci {dcText = gen} : bs}
}
([DCItem]
_, []) ->
Feed
f
{ RSS1.feedChannel =
(RSS1.feedChannel f)
{ RSS1.channelDC =
DCItem {dcElt = DC_Source, dcText = gen} : RSS1.channelDC (RSS1.feedChannel f)
}
}
Feed.Types.XMLFeed Element
f ->
Element -> Feed
Feed.Types.XMLFeed (Element -> Feed) -> Element -> Feed
forall a b. (a -> b) -> a -> b
$
(Element -> Maybe Element) -> Element -> Element
mapMaybeChildren
(\Element
e ->
if Element -> Name
elementName Element
e Name -> Name -> Bool
forall a. Eq a => a -> a -> Bool
== Name
"channel"
then Element -> Maybe Element
forall a. a -> Maybe a
Just
((Element -> Maybe Element) -> Element -> Element
mapMaybeChildren
(\Element
e2 ->
if Element -> Name
elementName Element
e2 Name -> Name -> Bool
forall a. Eq a => a -> a -> Bool
== Name
"generator"
then Element -> Maybe Element
forall a. a -> Maybe a
Just (Name -> Text -> Element
forall t. ToNode t => Name -> t -> Element
unode Name
"generator" Text
gen)
else Maybe Element
forall a. Maybe a
Nothing)
Element
e)
else Maybe Element
forall a. Maybe a
Nothing)
Element
f
where
isSource :: DCItem -> Bool
isSource DCItem
dc = DCItem -> DCInfo
dcElt DCItem
dc DCInfo -> DCInfo -> Bool
forall a. Eq a => a -> a -> Bool
== DCInfo
DC_Source
atomEntryToItem :: Atom.Entry -> Feed.Types.Item
atomEntryToItem :: Entry -> Item
atomEntryToItem = Entry -> Item
Feed.Types.AtomItem
rssItemToItem :: RSS.RSSItem -> Feed.Types.Item
= RSSItem -> Item
Feed.Types.RSSItem
rdfItemToItem :: RSS1.Item -> Feed.Types.Item
rdfItemToItem :: Item -> Item
rdfItemToItem = Item -> Item
Feed.Types.RSS1Item
type ItemSetter a = a -> Feed.Types.Item -> Feed.Types.Item
withItemPubDate :: ItemSetter DateString
withItemPubDate :: ItemSetter Text
withItemPubDate Text
dt Item
fi =
case Item
fi of
Feed.Types.AtomItem Entry
e -> Entry -> Item
Feed.Types.AtomItem Entry
e {Atom.entryUpdated = dt}
Feed.Types.RSSItem RSSItem
i -> RSSItem -> Item
Feed.Types.RSSItem RSSItem
i {RSS.rssItemPubDate = Just dt}
Feed.Types.RSS1Item Item
i ->
case (DCItem -> Bool) -> [DCItem] -> ([DCItem], [DCItem])
forall a. (a -> Bool) -> [a] -> ([a], [a])
break DCItem -> Bool
isDate ([DCItem] -> ([DCItem], [DCItem]))
-> [DCItem] -> ([DCItem], [DCItem])
forall a b. (a -> b) -> a -> b
$ Item -> [DCItem]
RSS1.itemDC Item
i of
([DCItem]
as, DCItem
dci:[DCItem]
bs) -> Item -> Item
Feed.Types.RSS1Item Item
i {RSS1.itemDC = as ++ dci {dcText = dt} : bs}
([DCItem]
_, []) ->
Item -> Item
Feed.Types.RSS1Item
Item
i {RSS1.itemDC = DCItem {dcElt = DC_Date, dcText = dt} : RSS1.itemDC i}
Feed.Types.XMLItem Element
i ->
Element -> Item
Feed.Types.XMLItem (Element -> Item) -> Element -> Item
forall a b. (a -> b) -> a -> b
$
Element -> Element -> Element
addChild (Name -> Text -> Element
forall t. ToNode t => Name -> t -> Element
unode Name
"pubDate" Text
dt) (Element -> Element) -> Element -> Element
forall a b. (a -> b) -> a -> b
$ (Element -> Bool) -> Element -> Element
filterChildren (\Element
e -> Element -> Name
elementName Element
e Name -> Name -> Bool
forall a. Eq a => a -> a -> Bool
/= Name
"pubDate") Element
i
where
isDate :: DCItem -> Bool
isDate DCItem
dc = DCItem -> DCInfo
dcElt DCItem
dc DCInfo -> DCInfo -> Bool
forall a. Eq a => a -> a -> Bool
== DCInfo
DC_Date
withItemDate :: ItemSetter DateString
withItemDate :: ItemSetter Text
withItemDate = ItemSetter Text
withItemPubDate
withItemTitle :: ItemSetter Text
withItemTitle :: ItemSetter Text
withItemTitle Text
tit Item
fi =
case Item
fi of
Feed.Types.AtomItem Entry
e -> Entry -> Item
Feed.Types.AtomItem Entry
e {Atom.entryTitle = TextString tit}
Feed.Types.RSSItem RSSItem
i -> RSSItem -> Item
Feed.Types.RSSItem RSSItem
i {RSS.rssItemTitle = Just tit}
Feed.Types.RSS1Item Item
i -> Item -> Item
Feed.Types.RSS1Item Item
i {RSS1.itemTitle = tit}
Feed.Types.XMLItem Element
i ->
Element -> Item
Feed.Types.XMLItem (Element -> Item) -> Element -> Item
forall a b. (a -> b) -> a -> b
$
Element -> Element -> Element
addChild (Name -> Text -> Element
forall t. ToNode t => Name -> t -> Element
unode Name
"title" Text
tit) (Element -> Element) -> Element -> Element
forall a b. (a -> b) -> a -> b
$ (Element -> Bool) -> Element -> Element
filterChildren (\Element
e -> Element -> Name
elementName Element
e Name -> Name -> Bool
forall a. Eq a => a -> a -> Bool
/= Name
"title") Element
i
withItemAuthor :: ItemSetter Text
withItemAuthor :: ItemSetter Text
withItemAuthor Text
au Item
fi =
case Item
fi of
Feed.Types.AtomItem Entry
e ->
Entry -> Item
Feed.Types.AtomItem
Entry
e {Atom.entryAuthors = [nullPerson {personName = au, personURI = Just au}]}
Feed.Types.RSSItem RSSItem
i -> RSSItem -> Item
Feed.Types.RSSItem RSSItem
i {RSS.rssItemAuthor = Just au}
Feed.Types.RSS1Item Item
i ->
case (DCItem -> Bool) -> [DCItem] -> ([DCItem], [DCItem])
forall a. (a -> Bool) -> [a] -> ([a], [a])
break DCItem -> Bool
isAuthor ([DCItem] -> ([DCItem], [DCItem]))
-> [DCItem] -> ([DCItem], [DCItem])
forall a b. (a -> b) -> a -> b
$ Item -> [DCItem]
RSS1.itemDC Item
i of
([DCItem]
as, DCItem
dci:[DCItem]
bs) -> Item -> Item
Feed.Types.RSS1Item Item
i {RSS1.itemDC = as ++ dci {dcText = au} : bs}
([DCItem]
_, []) ->
Item -> Item
Feed.Types.RSS1Item
Item
i {RSS1.itemDC = DCItem {dcElt = DC_Creator, dcText = au} : RSS1.itemDC i}
Feed.Types.XMLItem Element
i ->
Element -> Item
Feed.Types.XMLItem (Element -> Item) -> Element -> Item
forall a b. (a -> b) -> a -> b
$
Element -> Element -> Element
addChild (Name -> Text -> Element
forall t. ToNode t => Name -> t -> Element
unode Name
"author" Text
au) (Element -> Element) -> Element -> Element
forall a b. (a -> b) -> a -> b
$ (Element -> Bool) -> Element -> Element
filterChildren (\Element
e -> Element -> Name
elementName Element
e Name -> Name -> Bool
forall a. Eq a => a -> a -> Bool
/= Name
"author") Element
i
where
isAuthor :: DCItem -> Bool
isAuthor DCItem
dc = DCItem -> DCInfo
dcElt DCItem
dc DCInfo -> DCInfo -> Bool
forall a. Eq a => a -> a -> Bool
== DCInfo
DC_Creator
withItemFeedLink :: Text -> ItemSetter Text
withItemFeedLink :: Text -> ItemSetter Text
withItemFeedLink Text
tit Text
url Item
fi =
case Item
fi of
Feed.Types.AtomItem Entry
e ->
Entry -> Item
Feed.Types.AtomItem
Entry
e
{ Atom.entrySource =
Just Atom.nullSource {sourceId = Just url, sourceTitle = Just (TextString tit)}
}
Feed.Types.RSSItem RSSItem
i -> RSSItem -> Item
Feed.Types.RSSItem RSSItem
i {RSS.rssItemSource = Just (RSS.nullSource url tit)}
Feed.Types.RSS1Item Item
i -> Item -> Item
Feed.Types.RSS1Item Item
i {RSS1.itemTitle = tit}
Feed.Types.XMLItem Element
i ->
Element -> Item
Feed.Types.XMLItem (Element -> Item) -> Element -> Item
forall a b. (a -> b) -> a -> b
$
Element -> Element -> Element
addChild (Name -> ([Attr], Text) -> Element
forall t. ToNode t => Name -> t -> Element
unode Name
"source" ([Text -> Text -> Attr
mkAttr Text
"url" Text
url], Text
tit)) (Element -> Element) -> Element -> Element
forall a b. (a -> b) -> a -> b
$
(Element -> Bool) -> Element -> Element
filterChildren (\Element
e -> Element -> Name
elementName Element
e Name -> Name -> Bool
forall a. Eq a => a -> a -> Bool
/= Name
"source") Element
i
withItemCommentLink :: ItemSetter Text
Text
url Item
fi =
case Item
fi of
Feed.Types.AtomItem Entry
e ->
Entry -> Item
Feed.Types.AtomItem
Entry
e {Atom.entryLinks = ((nullLink url) {linkRel = Just (Left "replies")}) : Atom.entryLinks e}
Feed.Types.RSSItem RSSItem
i -> RSSItem -> Item
Feed.Types.RSSItem RSSItem
i {RSS.rssItemComments = Just url}
Feed.Types.RSS1Item Item
i ->
case (DCItem -> Bool) -> [DCItem] -> ([DCItem], [DCItem])
forall a. (a -> Bool) -> [a] -> ([a], [a])
break DCItem -> Bool
isRel ([DCItem] -> ([DCItem], [DCItem]))
-> [DCItem] -> ([DCItem], [DCItem])
forall a b. (a -> b) -> a -> b
$ Item -> [DCItem]
RSS1.itemDC Item
i of
([DCItem]
as, DCItem
dci:[DCItem]
bs) -> Item -> Item
Feed.Types.RSS1Item Item
i {RSS1.itemDC = as ++ dci {dcText = url} : bs}
([DCItem]
_, []) ->
Item -> Item
Feed.Types.RSS1Item
Item
i {RSS1.itemDC = DCItem {dcElt = DC_Relation, dcText = url} : RSS1.itemDC i}
Feed.Types.XMLItem Element
i ->
Element -> Item
Feed.Types.XMLItem (Element -> Item) -> Element -> Item
forall a b. (a -> b) -> a -> b
$
Element -> Element -> Element
addChild (Name -> Text -> Element
forall t. ToNode t => Name -> t -> Element
unode Name
"comments" Text
url) (Element -> Element) -> Element -> Element
forall a b. (a -> b) -> a -> b
$ (Element -> Bool) -> Element -> Element
filterChildren (\Element
e -> Element -> Name
elementName Element
e Name -> Name -> Bool
forall a. Eq a => a -> a -> Bool
/= Name
"comments") Element
i
where
isRel :: DCItem -> Bool
isRel DCItem
dc = DCItem -> DCInfo
dcElt DCItem
dc DCInfo -> DCInfo -> Bool
forall a. Eq a => a -> a -> Bool
== DCInfo
DC_Relation
withItemEnclosure :: Text -> Maybe Text -> ItemSetter (Maybe Integer)
withItemEnclosure :: Text -> Maybe Text -> ItemSetter (Maybe Integer)
withItemEnclosure Text
url Maybe Text
ty Maybe Integer
mb_len Item
fi =
case Item
fi of
Feed.Types.AtomItem Entry
e ->
Entry -> Item
Feed.Types.AtomItem
Entry
e
{ Atom.entryLinks =
((nullLink url)
{ linkRel = Just (Left "enclosure")
, linkType = ty
, linkLength = fmap (pack . show) mb_len
}) :
Atom.entryLinks e
}
Feed.Types.RSSItem RSSItem
i ->
RSSItem -> Item
Feed.Types.RSSItem
RSSItem
i {RSS.rssItemEnclosure = Just (nullEnclosure url mb_len (fromMaybe "text/html" ty))}
Feed.Types.RSS1Item Item
i ->
Item -> Item
Feed.Types.RSS1Item
Item
i
{ RSS1.itemContent =
nullContentInfo {contentURI = Just url, contentFormat = ty} : RSS1.itemContent i
}
Feed.Types.XMLItem Element
i ->
Element -> Item
Feed.Types.XMLItem (Element -> Item) -> Element -> Item
forall a b. (a -> b) -> a -> b
$
Element -> Element -> Element
addChild
((Name -> Text -> Element
forall t. ToNode t => Name -> t -> Element
unode Name
"enclosure" Text
url)
{elementAttributes = [mkAttr "length" "0", mkAttr "type" (fromMaybe "text/html" ty)]}) (Element -> Element) -> Element -> Element
forall a b. (a -> b) -> a -> b
$
(Element -> Bool) -> Element -> Element
filterChildren (\Element
e -> Element -> Name
elementName Element
e Name -> Name -> Bool
forall a. Eq a => a -> a -> Bool
/= Name
"enclosure") Element
i
withItemId :: Bool -> ItemSetter Text
withItemId :: Bool -> ItemSetter Text
withItemId Bool
isURL Text
idS Item
fi =
case Item
fi of
Feed.Types.AtomItem Entry
e -> Entry -> Item
Feed.Types.AtomItem Entry
e {Atom.entryId = idS}
Feed.Types.RSSItem RSSItem
i ->
RSSItem -> Item
Feed.Types.RSSItem
RSSItem
i {RSS.rssItemGuid = Just (nullGuid idS) {rssGuidPermanentURL = Just isURL}}
Feed.Types.RSS1Item Item
i ->
case (DCItem -> Bool) -> [DCItem] -> ([DCItem], [DCItem])
forall a. (a -> Bool) -> [a] -> ([a], [a])
break DCItem -> Bool
isId ([DCItem] -> ([DCItem], [DCItem]))
-> [DCItem] -> ([DCItem], [DCItem])
forall a b. (a -> b) -> a -> b
$ Item -> [DCItem]
RSS1.itemDC Item
i of
([DCItem]
as, DCItem
dci:[DCItem]
bs) -> Item -> Item
Feed.Types.RSS1Item Item
i {RSS1.itemDC = as ++ dci {dcText = idS} : bs}
([DCItem]
_, []) ->
Item -> Item
Feed.Types.RSS1Item
Item
i {RSS1.itemDC = DCItem {dcElt = DC_Identifier, dcText = idS} : RSS1.itemDC i}
Feed.Types.XMLItem Element
i ->
Element -> Item
Feed.Types.XMLItem (Element -> Item) -> Element -> Item
forall a b. (a -> b) -> a -> b
$
Element -> Element -> Element
addChild (Name -> ([Attr], Text) -> Element
forall t. ToNode t => Name -> t -> Element
unode Name
"guid" ([Text -> Text -> Attr
mkAttr Text
"isPermaLink" (Bool -> Text
forall {a}. Show a => a -> Text
showBool Bool
isURL)], Text
idS)) (Element -> Element) -> Element -> Element
forall a b. (a -> b) -> a -> b
$
(Element -> Bool) -> Element -> Element
filterChildren (\Element
e -> Element -> Name
elementName Element
e Name -> Name -> Bool
forall a. Eq a => a -> a -> Bool
/= Name
"guid") Element
i
where
showBool :: a -> Text
showBool a
x = [Char] -> Text
pack ([Char] -> Text) -> [Char] -> Text
forall a b. (a -> b) -> a -> b
$ (Char -> Char) -> [Char] -> [Char]
forall a b. (a -> b) -> [a] -> [b]
map Char -> Char
toLower (a -> [Char]
forall a. Show a => a -> [Char]
show a
x)
isId :: DCItem -> Bool
isId DCItem
dc = DCItem -> DCInfo
dcElt DCItem
dc DCInfo -> DCInfo -> Bool
forall a. Eq a => a -> a -> Bool
== DCInfo
DC_Identifier
withItemDescription :: ItemSetter Text
withItemDescription :: ItemSetter Text
withItemDescription Text
desc Item
fi =
case Item
fi of
Feed.Types.AtomItem Entry
e -> Entry -> Item
Feed.Types.AtomItem Entry
e {Atom.entrySummary = Just (TextString desc)}
Feed.Types.RSSItem RSSItem
i -> RSSItem -> Item
Feed.Types.RSSItem RSSItem
i {RSS.rssItemDescription = Just desc}
Feed.Types.RSS1Item Item
i -> Item -> Item
Feed.Types.RSS1Item Item
i {RSS1.itemDesc = Just desc}
Feed.Types.XMLItem Element
i ->
Element -> Item
Feed.Types.XMLItem (Element -> Item) -> Element -> Item
forall a b. (a -> b) -> a -> b
$
Element -> Element -> Element
addChild (Name -> Text -> Element
forall t. ToNode t => Name -> t -> Element
unode Name
"description" Text
desc) (Element -> Element) -> Element -> Element
forall a b. (a -> b) -> a -> b
$ (Element -> Bool) -> Element -> Element
filterChildren (\Element
e -> Element -> Name
elementName Element
e Name -> Name -> Bool
forall a. Eq a => a -> a -> Bool
/= Name
"description") Element
i
withItemRights :: ItemSetter Text
withItemRights :: ItemSetter Text
withItemRights Text
desc Item
fi =
case Item
fi of
Feed.Types.AtomItem Entry
e -> Entry -> Item
Feed.Types.AtomItem Entry
e {Atom.entryRights = Just (TextString desc)}
Feed.Types.RSSItem {} -> Item
fi
Feed.Types.RSS1Item Item
i ->
case (DCItem -> Bool) -> [DCItem] -> ([DCItem], [DCItem])
forall a. (a -> Bool) -> [a] -> ([a], [a])
break ((DCInfo -> DCInfo -> Bool
forall a. Eq a => a -> a -> Bool
== DCInfo
DC_Rights) (DCInfo -> Bool) -> (DCItem -> DCInfo) -> DCItem -> Bool
forall b c a. (b -> c) -> (a -> b) -> a -> c
. DCItem -> DCInfo
dcElt) ([DCItem] -> ([DCItem], [DCItem]))
-> [DCItem] -> ([DCItem], [DCItem])
forall a b. (a -> b) -> a -> b
$ Item -> [DCItem]
RSS1.itemDC Item
i of
([DCItem]
as, DCItem
dci:[DCItem]
bs) -> Item -> Item
Feed.Types.RSS1Item Item
i {RSS1.itemDC = as ++ dci {dcText = desc} : bs}
([DCItem]
_, []) ->
Item -> Item
Feed.Types.RSS1Item
Item
i {RSS1.itemDC = DCItem {dcElt = DC_Rights, dcText = desc} : RSS1.itemDC i}
Feed.Types.XMLItem {} -> Item
fi
withItemLink :: ItemSetter URLString
withItemLink :: ItemSetter Text
withItemLink Text
url Item
fi =
case Item
fi of
Feed.Types.AtomItem Entry
e ->
Entry -> Item
Feed.Types.AtomItem Entry
e {Atom.entryLinks = replaceAlternate url (Atom.entryLinks e)}
Feed.Types.RSSItem RSSItem
i -> RSSItem -> Item
Feed.Types.RSSItem RSSItem
i {RSS.rssItemLink = Just url}
Feed.Types.RSS1Item Item
i -> Item -> Item
Feed.Types.RSS1Item Item
i {RSS1.itemLink = url}
Feed.Types.XMLItem Element
i ->
Element -> Item
Feed.Types.XMLItem (Element -> Item) -> Element -> Item
forall a b. (a -> b) -> a -> b
$
Element -> Element -> Element
addChild (Name -> Text -> Element
forall t. ToNode t => Name -> t -> Element
unode Name
"link" Text
url) (Element -> Element) -> Element -> Element
forall a b. (a -> b) -> a -> b
$ (Element -> Bool) -> Element -> Element
filterChildren (\Element
e -> Element -> Name
elementName Element
e Name -> Name -> Bool
forall a. Eq a => a -> a -> Bool
/= Name
"link") Element
i
where
replaceAlternate :: Text -> [Link] -> [Link]
replaceAlternate Text
_ [] = []
replaceAlternate Text
x (Link
lr:[Link]
xs)
| Maybe (Either Text Text) -> Text
forall {a}. IsString a => Maybe (Either a a) -> a
toStr (Link -> Maybe (Either Text Text)
Atom.linkRel Link
lr) Text -> Text -> Bool
forall a. Eq a => a -> a -> Bool
== Text
"alternate" = Link
lr {Atom.linkHref = x} Link -> [Link] -> [Link]
forall a. a -> [a] -> [a]
: [Link]
xs
| Bool
otherwise = Link
lr Link -> [Link] -> [Link]
forall a. a -> [a] -> [a]
: Text -> [Link] -> [Link]
replaceAlternate Text
x [Link]
xs
toStr :: Maybe (Either a a) -> a
toStr Maybe (Either a a)
Nothing = a
""
toStr (Just (Left a
x)) = a
x
toStr (Just (Right a
x)) = a
x
withItemCategories :: ItemSetter [(Text, Maybe Text)]
withItemCategories :: ItemSetter [(Text, Maybe Text)]
withItemCategories [(Text, Maybe Text)]
cats Item
fi =
case Item
fi of
Feed.Types.AtomItem Entry
e ->
Entry -> Item
Feed.Types.AtomItem
Entry
e
{ Atom.entryCategories =
map (\(Text
t, Maybe Text
mb) -> (Text -> Category
Atom.newCategory Text
t) {Atom.catScheme = mb}) cats ++ entryCategories e
}
Feed.Types.RSSItem RSSItem
i ->
RSSItem -> Item
Feed.Types.RSSItem
RSSItem
i
{ RSS.rssItemCategories =
map (\(Text
t, Maybe Text
mb) -> (Text -> RSSCategory
RSS.newCategory Text
t) {RSS.rssCategoryDomain = mb}) cats ++
rssItemCategories i
}
Feed.Types.RSS1Item Item
i ->
Item -> Item
Feed.Types.RSS1Item
Item
i
{ RSS1.itemDC =
map (\(Text
t, Maybe Text
_) -> DCItem {dcElt :: DCInfo
dcElt = DCInfo
DC_Subject, dcText :: Text
dcText = Text
t}) cats ++ RSS1.itemDC i
}
Feed.Types.XMLItem Element
i ->
Element -> Item
Feed.Types.XMLItem (Element -> Item) -> Element -> Item
forall a b. (a -> b) -> a -> b
$
((Text, Maybe Text) -> Element -> Element)
-> Element -> [(Text, Maybe Text)] -> Element
forall a b. (a -> b -> b) -> b -> [a] -> b
forall (t :: * -> *) a b.
Foldable t =>
(a -> b -> b) -> b -> t a -> b
foldr
(\(Text
t, Maybe Text
mb) Element
acc ->
Element -> Element -> Element
addChild
(Name -> [Attr] -> Element
forall t. ToNode t => Name -> t -> Element
unode Name
"category" ((Attr -> [Attr])
-> (Text -> Attr -> [Attr]) -> Maybe Text -> Attr -> [Attr]
forall b a. b -> (a -> b) -> Maybe a -> b
maybe (Attr -> [Attr] -> [Attr]
forall a. a -> [a] -> [a]
: []) (\Text
v Attr
x -> [Text -> Text -> Attr
mkAttr Text
"domain" Text
v, Attr
x]) Maybe Text
mb (Text -> Text -> Attr
mkAttr Text
"term" Text
t)))
Element
acc)
Element
i
[(Text, Maybe Text)]
cats
filterChildren :: (XML.Element -> Bool) -> XML.Element -> XML.Element
filterChildren :: (Element -> Bool) -> Element -> Element
filterChildren Element -> Bool
pre Element
e =
case Element -> [Node]
elementNodes Element
e of
[] -> Element
e
[Node]
cs -> Element
e {elementNodes = mapMaybe filterElt cs}
where
filterElt :: Node -> Maybe Node
filterElt xe :: Node
xe@(XML.NodeElement Element
el)
| Element -> Bool
pre Element
el = Node -> Maybe Node
forall a. a -> Maybe a
Just Node
xe
| Bool
otherwise = Maybe Node
forall a. Maybe a
Nothing
filterElt Node
xe = Node -> Maybe Node
forall a. a -> Maybe a
Just Node
xe
addChild :: XML.Element -> XML.Element -> XML.Element
addChild :: Element -> Element -> Element
addChild Element
a Element
b = Element
b {elementNodes = XML.NodeElement a : elementNodes b}
mapMaybeChildren :: (XML.Element -> Maybe XML.Element) -> XML.Element -> XML.Element
mapMaybeChildren :: (Element -> Maybe Element) -> Element -> Element
mapMaybeChildren Element -> Maybe Element
f Element
e =
case Element -> [Node]
elementNodes Element
e of
[] -> Element
e
[Node]
cs -> Element
e {elementNodes = map procElt cs}
where
procElt :: Node -> Node
procElt xe :: Node
xe@(XML.NodeElement Element
el) =
case Element -> Maybe Element
f Element
el of
Maybe Element
Nothing -> Node
xe
Just Element
el1 -> Element -> Node
XML.NodeElement Element
el1
procElt Node
xe = Node
xe