Copyright | 2010-2011 John Millikin |
---|---|
License | MIT |
Safe Haskell | Safe-Inferred |
Language | Haskell2010 |
Data.XML.Types
Description
Basic types for representing XML.
The idea is to have a full set of appropriate types, which various XML libraries can share. Instead of having equivalent-but-incompatible types for every binding, parser, or client, they all share the same types can can thus interoperate easily.
This library contains complete types for most parts of an XML document, including the prologue, node tree, and doctype. Some basic combinators are included for common tasks, including traversing the node tree and filtering children.
Synopsis
- data Document = Document {}
- data Prologue = Prologue {}
- data Instruction = Instruction {}
- data Miscellaneous
- data Node
- data Element = Element {
- elementName :: Name
- elementAttributes :: [(Name, [Content])]
- elementNodes :: [Node]
- data Content
- data Name = Name {}
- data Doctype = Doctype {}
- data ExternalID
- data Event
- isElement :: Node -> [Element]
- isInstruction :: Node -> [Instruction]
- isContent :: Node -> [Content]
- isComment :: Node -> [Text]
- isNamed :: Name -> Element -> [Element]
- elementChildren :: Element -> [Element]
- elementContent :: Element -> [Content]
- elementText :: Element -> [Text]
- nodeChildren :: Node -> [Node]
- nodeContent :: Node -> [Content]
- nodeText :: Node -> [Text]
- hasAttribute :: Name -> Element -> [Element]
- hasAttributeText :: Name -> (Text -> Bool) -> Element -> [Element]
- attributeContent :: Name -> Element -> Maybe [Content]
- attributeText :: Name -> Element -> Maybe Text
Types
Document prologue
Constructors
Document | |
Fields |
Instances
Eq Document Source # | |
Data Document Source # | |
Defined in Data.XML.Types Methods gfoldl :: (forall d b. Data d => c (d -> b) -> d -> c b) -> (forall g. g -> c g) -> Document -> c Document # gunfold :: (forall b r. Data b => c (b -> r) -> c r) -> (forall r. r -> c r) -> Constr -> c Document # toConstr :: Document -> Constr # dataTypeOf :: Document -> DataType # dataCast1 :: Typeable t => (forall d. Data d => c (t d)) -> Maybe (c Document) # dataCast2 :: Typeable t => (forall d e. (Data d, Data e) => c (t d e)) -> Maybe (c Document) # gmapT :: (forall b. Data b => b -> b) -> Document -> Document # gmapQl :: (r -> r' -> r) -> r -> (forall d. Data d => d -> r') -> Document -> r # gmapQr :: forall r r'. (r' -> r -> r) -> r -> (forall d. Data d => d -> r') -> Document -> r # gmapQ :: (forall d. Data d => d -> u) -> Document -> [u] # gmapQi :: Int -> (forall d. Data d => d -> u) -> Document -> u # gmapM :: Monad m => (forall d. Data d => d -> m d) -> Document -> m Document # gmapMp :: MonadPlus m => (forall d. Data d => d -> m d) -> Document -> m Document # gmapMo :: MonadPlus m => (forall d. Data d => d -> m d) -> Document -> m Document # | |
Ord Document Source # | |
Defined in Data.XML.Types | |
Show Document Source # | |
Generic Document Source # | |
NFData Document Source # | |
Defined in Data.XML.Types | |
type Rep Document Source # | |
Defined in Data.XML.Types type Rep Document = D1 ('MetaData "Document" "Data.XML.Types" "xml-types-0.3.8-8KPzsxFeq3aKlZCcM9fWwB" 'False) (C1 ('MetaCons "Document" 'PrefixI 'True) (S1 ('MetaSel ('Just "documentPrologue") 'NoSourceUnpackedness 'NoSourceStrictness 'DecidedLazy) (Rec0 Prologue) :*: (S1 ('MetaSel ('Just "documentRoot") 'NoSourceUnpackedness 'NoSourceStrictness 'DecidedLazy) (Rec0 Element) :*: S1 ('MetaSel ('Just "documentEpilogue") 'NoSourceUnpackedness 'NoSourceStrictness 'DecidedLazy) (Rec0 [Miscellaneous])))) |
Constructors
Prologue | |
Fields |
Instances
Eq Prologue Source # | |
Data Prologue Source # | |
Defined in Data.XML.Types Methods gfoldl :: (forall d b. Data d => c (d -> b) -> d -> c b) -> (forall g. g -> c g) -> Prologue -> c Prologue # gunfold :: (forall b r. Data b => c (b -> r) -> c r) -> (forall r. r -> c r) -> Constr -> c Prologue # toConstr :: Prologue -> Constr # dataTypeOf :: Prologue -> DataType # dataCast1 :: Typeable t => (forall d. Data d => c (t d)) -> Maybe (c Prologue) # dataCast2 :: Typeable t => (forall d e. (Data d, Data e) => c (t d e)) -> Maybe (c Prologue) # gmapT :: (forall b. Data b => b -> b) -> Prologue -> Prologue # gmapQl :: (r -> r' -> r) -> r -> (forall d. Data d => d -> r') -> Prologue -> r # gmapQr :: forall r r'. (r' -> r -> r) -> r -> (forall d. Data d => d -> r') -> Prologue -> r # gmapQ :: (forall d. Data d => d -> u) -> Prologue -> [u] # gmapQi :: Int -> (forall d. Data d => d -> u) -> Prologue -> u # gmapM :: Monad m => (forall d. Data d => d -> m d) -> Prologue -> m Prologue # gmapMp :: MonadPlus m => (forall d. Data d => d -> m d) -> Prologue -> m Prologue # gmapMo :: MonadPlus m => (forall d. Data d => d -> m d) -> Prologue -> m Prologue # | |
Ord Prologue Source # | |
Defined in Data.XML.Types | |
Show Prologue Source # | |
Generic Prologue Source # | |
NFData Prologue Source # | |
Defined in Data.XML.Types | |
type Rep Prologue Source # | |
Defined in Data.XML.Types type Rep Prologue = D1 ('MetaData "Prologue" "Data.XML.Types" "xml-types-0.3.8-8KPzsxFeq3aKlZCcM9fWwB" 'False) (C1 ('MetaCons "Prologue" 'PrefixI 'True) (S1 ('MetaSel ('Just "prologueBefore") 'NoSourceUnpackedness 'NoSourceStrictness 'DecidedLazy) (Rec0 [Miscellaneous]) :*: (S1 ('MetaSel ('Just "prologueDoctype") 'NoSourceUnpackedness 'NoSourceStrictness 'DecidedLazy) (Rec0 (Maybe Doctype)) :*: S1 ('MetaSel ('Just "prologueAfter") 'NoSourceUnpackedness 'NoSourceStrictness 'DecidedLazy) (Rec0 [Miscellaneous])))) |
data Instruction Source #
Constructors
Instruction | |
Fields |
Instances
data Miscellaneous Source #
Constructors
MiscInstruction Instruction | |
MiscComment Text |
Instances
Document body
Instances
Eq Node Source # | |
Data Node Source # | |
Defined in Data.XML.Types Methods gfoldl :: (forall d b. Data d => c (d -> b) -> d -> c b) -> (forall g. g -> c g) -> Node -> c Node # gunfold :: (forall b r. Data b => c (b -> r) -> c r) -> (forall r. r -> c r) -> Constr -> c Node # dataTypeOf :: Node -> DataType # dataCast1 :: Typeable t => (forall d. Data d => c (t d)) -> Maybe (c Node) # dataCast2 :: Typeable t => (forall d e. (Data d, Data e) => c (t d e)) -> Maybe (c Node) # gmapT :: (forall b. Data b => b -> b) -> Node -> Node # gmapQl :: (r -> r' -> r) -> r -> (forall d. Data d => d -> r') -> Node -> r # gmapQr :: forall r r'. (r' -> r -> r) -> r -> (forall d. Data d => d -> r') -> Node -> r # gmapQ :: (forall d. Data d => d -> u) -> Node -> [u] # gmapQi :: Int -> (forall d. Data d => d -> u) -> Node -> u # gmapM :: Monad m => (forall d. Data d => d -> m d) -> Node -> m Node # gmapMp :: MonadPlus m => (forall d. Data d => d -> m d) -> Node -> m Node # gmapMo :: MonadPlus m => (forall d. Data d => d -> m d) -> Node -> m Node # | |
Ord Node Source # | |
Show Node Source # | |
IsString Node Source # | |
Defined in Data.XML.Types Methods fromString :: String -> Node # | |
Generic Node Source # | |
NFData Node Source # | |
Defined in Data.XML.Types | |
type Rep Node Source # | |
Defined in Data.XML.Types type Rep Node = D1 ('MetaData "Node" "Data.XML.Types" "xml-types-0.3.8-8KPzsxFeq3aKlZCcM9fWwB" 'False) ((C1 ('MetaCons "NodeElement" 'PrefixI 'False) (S1 ('MetaSel ('Nothing :: Maybe Symbol) 'NoSourceUnpackedness 'NoSourceStrictness 'DecidedLazy) (Rec0 Element)) :+: C1 ('MetaCons "NodeInstruction" 'PrefixI 'False) (S1 ('MetaSel ('Nothing :: Maybe Symbol) 'NoSourceUnpackedness 'NoSourceStrictness 'DecidedLazy) (Rec0 Instruction))) :+: (C1 ('MetaCons "NodeContent" 'PrefixI 'False) (S1 ('MetaSel ('Nothing :: Maybe Symbol) 'NoSourceUnpackedness 'NoSourceStrictness 'DecidedLazy) (Rec0 Content)) :+: C1 ('MetaCons "NodeComment" 'PrefixI 'False) (S1 ('MetaSel ('Nothing :: Maybe Symbol) 'NoSourceUnpackedness 'NoSourceStrictness 'DecidedLazy) (Rec0 Text)))) |
Constructors
Element | |
Fields
|
Instances
Eq Element Source # | |
Data Element Source # | |
Defined in Data.XML.Types Methods gfoldl :: (forall d b. Data d => c (d -> b) -> d -> c b) -> (forall g. g -> c g) -> Element -> c Element # gunfold :: (forall b r. Data b => c (b -> r) -> c r) -> (forall r. r -> c r) -> Constr -> c Element # toConstr :: Element -> Constr # dataTypeOf :: Element -> DataType # dataCast1 :: Typeable t => (forall d. Data d => c (t d)) -> Maybe (c Element) # dataCast2 :: Typeable t => (forall d e. (Data d, Data e) => c (t d e)) -> Maybe (c Element) # gmapT :: (forall b. Data b => b -> b) -> Element -> Element # gmapQl :: (r -> r' -> r) -> r -> (forall d. Data d => d -> r') -> Element -> r # gmapQr :: forall r r'. (r' -> r -> r) -> r -> (forall d. Data d => d -> r') -> Element -> r # gmapQ :: (forall d. Data d => d -> u) -> Element -> [u] # gmapQi :: Int -> (forall d. Data d => d -> u) -> Element -> u # gmapM :: Monad m => (forall d. Data d => d -> m d) -> Element -> m Element # gmapMp :: MonadPlus m => (forall d. Data d => d -> m d) -> Element -> m Element # gmapMo :: MonadPlus m => (forall d. Data d => d -> m d) -> Element -> m Element # | |
Ord Element Source # | |
Show Element Source # | |
Generic Element Source # | |
NFData Element Source # | |
Defined in Data.XML.Types | |
type Rep Element Source # | |
Defined in Data.XML.Types type Rep Element = D1 ('MetaData "Element" "Data.XML.Types" "xml-types-0.3.8-8KPzsxFeq3aKlZCcM9fWwB" 'False) (C1 ('MetaCons "Element" 'PrefixI 'True) (S1 ('MetaSel ('Just "elementName") 'NoSourceUnpackedness 'NoSourceStrictness 'DecidedLazy) (Rec0 Name) :*: (S1 ('MetaSel ('Just "elementAttributes") 'NoSourceUnpackedness 'NoSourceStrictness 'DecidedLazy) (Rec0 [(Name, [Content])]) :*: S1 ('MetaSel ('Just "elementNodes") 'NoSourceUnpackedness 'NoSourceStrictness 'DecidedLazy) (Rec0 [Node])))) |
Constructors
ContentText Text | |
ContentEntity Text | For pass-through parsing |
Instances
Eq Content Source # | |
Data Content Source # | |
Defined in Data.XML.Types Methods gfoldl :: (forall d b. Data d => c (d -> b) -> d -> c b) -> (forall g. g -> c g) -> Content -> c Content # gunfold :: (forall b r. Data b => c (b -> r) -> c r) -> (forall r. r -> c r) -> Constr -> c Content # toConstr :: Content -> Constr # dataTypeOf :: Content -> DataType # dataCast1 :: Typeable t => (forall d. Data d => c (t d)) -> Maybe (c Content) # dataCast2 :: Typeable t => (forall d e. (Data d, Data e) => c (t d e)) -> Maybe (c Content) # gmapT :: (forall b. Data b => b -> b) -> Content -> Content # gmapQl :: (r -> r' -> r) -> r -> (forall d. Data d => d -> r') -> Content -> r # gmapQr :: forall r r'. (r' -> r -> r) -> r -> (forall d. Data d => d -> r') -> Content -> r # gmapQ :: (forall d. Data d => d -> u) -> Content -> [u] # gmapQi :: Int -> (forall d. Data d => d -> u) -> Content -> u # gmapM :: Monad m => (forall d. Data d => d -> m d) -> Content -> m Content # gmapMp :: MonadPlus m => (forall d. Data d => d -> m d) -> Content -> m Content # gmapMo :: MonadPlus m => (forall d. Data d => d -> m d) -> Content -> m Content # | |
Ord Content Source # | |
Show Content Source # | |
IsString Content Source # | |
Defined in Data.XML.Types Methods fromString :: String -> Content # | |
Generic Content Source # | |
NFData Content Source # | |
Defined in Data.XML.Types | |
type Rep Content Source # | |
Defined in Data.XML.Types type Rep Content = D1 ('MetaData "Content" "Data.XML.Types" "xml-types-0.3.8-8KPzsxFeq3aKlZCcM9fWwB" 'False) (C1 ('MetaCons "ContentText" 'PrefixI 'False) (S1 ('MetaSel ('Nothing :: Maybe Symbol) 'NoSourceUnpackedness 'NoSourceStrictness 'DecidedLazy) (Rec0 Text)) :+: C1 ('MetaCons "ContentEntity" 'PrefixI 'False) (S1 ('MetaSel ('Nothing :: Maybe Symbol) 'NoSourceUnpackedness 'NoSourceStrictness 'DecidedLazy) (Rec0 Text))) |
A fully qualified name.
Prefixes are not semantically important; they are included only to
simplify pass-through parsing. When comparing names with Eq
or Ord
methods, prefixes are ignored.
The IsString
instance supports Clark notation; see
http://www.jclark.com/xml/xmlns.htm and
http://infohost.nmt.edu/tcc/help/pubs/pylxml/etree-QName.html. Use
the OverloadedStrings
language extension for very simple Name
construction:
myname :: Name myname = "{http://example.com/ns/my-namespace}my-name"
Constructors
Name | |
Fields
|
Instances
Eq Name Source # | |
Data Name Source # | |
Defined in Data.XML.Types Methods gfoldl :: (forall d b. Data d => c (d -> b) -> d -> c b) -> (forall g. g -> c g) -> Name -> c Name # gunfold :: (forall b r. Data b => c (b -> r) -> c r) -> (forall r. r -> c r) -> Constr -> c Name # dataTypeOf :: Name -> DataType # dataCast1 :: Typeable t => (forall d. Data d => c (t d)) -> Maybe (c Name) # dataCast2 :: Typeable t => (forall d e. (Data d, Data e) => c (t d e)) -> Maybe (c Name) # gmapT :: (forall b. Data b => b -> b) -> Name -> Name # gmapQl :: (r -> r' -> r) -> r -> (forall d. Data d => d -> r') -> Name -> r # gmapQr :: forall r r'. (r' -> r -> r) -> r -> (forall d. Data d => d -> r') -> Name -> r # gmapQ :: (forall d. Data d => d -> u) -> Name -> [u] # gmapQi :: Int -> (forall d. Data d => d -> u) -> Name -> u # gmapM :: Monad m => (forall d. Data d => d -> m d) -> Name -> m Name # gmapMp :: MonadPlus m => (forall d. Data d => d -> m d) -> Name -> m Name # gmapMo :: MonadPlus m => (forall d. Data d => d -> m d) -> Name -> m Name # | |
Ord Name Source # | |
Show Name Source # | |
IsString Name Source # | |
Defined in Data.XML.Types Methods fromString :: String -> Name # | |
Generic Name Source # | |
NFData Name Source # | |
Defined in Data.XML.Types | |
type Rep Name Source # | |
Defined in Data.XML.Types type Rep Name = D1 ('MetaData "Name" "Data.XML.Types" "xml-types-0.3.8-8KPzsxFeq3aKlZCcM9fWwB" 'False) (C1 ('MetaCons "Name" 'PrefixI 'True) (S1 ('MetaSel ('Just "nameLocalName") 'NoSourceUnpackedness 'NoSourceStrictness 'DecidedLazy) (Rec0 Text) :*: (S1 ('MetaSel ('Just "nameNamespace") 'NoSourceUnpackedness 'NoSourceStrictness 'DecidedLazy) (Rec0 (Maybe Text)) :*: S1 ('MetaSel ('Just "namePrefix") 'NoSourceUnpackedness 'NoSourceStrictness 'DecidedLazy) (Rec0 (Maybe Text))))) |
Doctypes
Note: due to the incredible complexity of DTDs, this type only supports external subsets. I've tried adding internal subset types, but they quickly gain more code than the rest of this module put together.
It is possible that some future version of this library might support internal subsets, but I am no longer actively working on adding them.
Constructors
Doctype | |
Fields
|
Instances
Eq Doctype Source # | |
Data Doctype Source # | |
Defined in Data.XML.Types Methods gfoldl :: (forall d b. Data d => c (d -> b) -> d -> c b) -> (forall g. g -> c g) -> Doctype -> c Doctype # gunfold :: (forall b r. Data b => c (b -> r) -> c r) -> (forall r. r -> c r) -> Constr -> c Doctype # toConstr :: Doctype -> Constr # dataTypeOf :: Doctype -> DataType # dataCast1 :: Typeable t => (forall d. Data d => c (t d)) -> Maybe (c Doctype) # dataCast2 :: Typeable t => (forall d e. (Data d, Data e) => c (t d e)) -> Maybe (c Doctype) # gmapT :: (forall b. Data b => b -> b) -> Doctype -> Doctype # gmapQl :: (r -> r' -> r) -> r -> (forall d. Data d => d -> r') -> Doctype -> r # gmapQr :: forall r r'. (r' -> r -> r) -> r -> (forall d. Data d => d -> r') -> Doctype -> r # gmapQ :: (forall d. Data d => d -> u) -> Doctype -> [u] # gmapQi :: Int -> (forall d. Data d => d -> u) -> Doctype -> u # gmapM :: Monad m => (forall d. Data d => d -> m d) -> Doctype -> m Doctype # gmapMp :: MonadPlus m => (forall d. Data d => d -> m d) -> Doctype -> m Doctype # gmapMo :: MonadPlus m => (forall d. Data d => d -> m d) -> Doctype -> m Doctype # | |
Ord Doctype Source # | |
Show Doctype Source # | |
Generic Doctype Source # | |
NFData Doctype Source # | |
Defined in Data.XML.Types | |
type Rep Doctype Source # | |
Defined in Data.XML.Types type Rep Doctype = D1 ('MetaData "Doctype" "Data.XML.Types" "xml-types-0.3.8-8KPzsxFeq3aKlZCcM9fWwB" 'False) (C1 ('MetaCons "Doctype" 'PrefixI 'True) (S1 ('MetaSel ('Just "doctypeName") 'NoSourceUnpackedness 'NoSourceStrictness 'DecidedLazy) (Rec0 Text) :*: S1 ('MetaSel ('Just "doctypeID") 'NoSourceUnpackedness 'NoSourceStrictness 'DecidedLazy) (Rec0 (Maybe ExternalID)))) |
data ExternalID Source #
Instances
Incremental processing
Some XML processing tools are incremental, and work in terms of events
rather than node trees. The Event
type allows a document to be fully
specified as a sequence of events.
Event-based XML libraries include:
Constructors
Instances
Combinators
Filters
isInstruction :: Node -> [Instruction] Source #
Element traversal
elementChildren :: Element -> [Element] Source #
elementContent :: Element -> [Content] Source #
elementText :: Element -> [Text] Source #
Node traversal
nodeChildren :: Node -> [Node] Source #
nodeContent :: Node -> [Content] Source #