Text.XML.Lens

Lenses, traversals for Element

data Element :: *

Constructors

Element

Fields

elementName :: Name

elementAttributes :: Map Name Text

elementNodes :: [Node]

Instances

Eq Element

Data Element

Ord Element

Show Element

ToMarkup Element

Note that the special element name {http:/www.snoyman.comxml2html}ie-cond with the single attribute cond is used to indicate an IE conditional comment.

NFData Element

Plated Element

plate traverses over its sub-elements.

Typeable * Element

(./) :: (Applicative f, Plated c) => LensLike f s t c c -> Over p f c c a b -> Over p f s t a b infixr 9

Combine two Traversals just like XPath's slash. Identical to (...).

l ./ m ≡ l . plate . m

Names

name :: Lens' Element Name

localName :: Lens' Element Text

el :: Name -> Traversal' Element Element

Traverse elements which has the specified name.

ell :: Text -> Traversal' Element Element

Old name for named

named :: CI Text -> Traversal' Element Element

Traverse elements which has the specified *local* name (case-insensitive).

Attributes

attributeIs :: Name -> Text -> Traversal' Element Element

attributeSatisfies :: Name -> (Text -> Bool) -> Traversal' Element Element

attr :: Name -> Traversal' Element Text

attribute :: Name -> Lens' Element (Maybe Text)

attrs :: Lens' Element (Map Name Text)

Contents

text :: Traversal' Element Text

Traverse all contents of the element.

comment :: Traversal' Element Text

Traverse all comments of the element.

Children

entire :: Traversal' Element Element

Traverse itself with its all children.　Rewriting subnodes of each children will break a traversal law.

nodes :: Lens' Element [Node]

Prisms for Node

data Node :: *

Constructors

NodeElement Element

NodeInstruction Instruction

NodeContent Text

NodeComment Text

Instances

Eq Node

Data Node

Ord Node

Show Node

ToMarkup Node

NFData Node

AsComment Node

AsInstruction Node

Typeable * Node

_Element :: Prism' Node Element

_Content :: Prism' Node Text

class AsInstruction t where

Minimal complete definition

Nothing

Methods

_Instruction :: Prism' t Instruction

Instances

AsInstruction Node

AsInstruction Miscellaneous

class AsComment t where

Minimal complete definition

Nothing

Methods

_Comment :: Prism' t Text

Instances

AsComment Node

AsComment Miscellaneous

Lenses for Document

data Document :: *

Constructors

Document

Fields

documentPrologue :: Prologue

documentRoot :: Element

documentEpilogue :: [Miscellaneous]

Instances

Eq Document

Data Document

Show Document

ToMarkup Document

NFData Document

Typeable * Document

root :: Lens' Document Element

The root element of the document.

prologue :: Lens' Document Prologue

epilogue :: Lens' Document [Miscellaneous]

doctype :: Lens' Prologue (Maybe Doctype)

Lenses for Name

data Name :: *

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

nameLocalName :: Text

nameNamespace :: Maybe Text

namePrefix :: Maybe Text

Instances

Eq Name

Data Name

Ord Name

Show Name

IsString Name

NFData Name

Typeable * Name

_nameLocalName :: Lens' Name Text

_nameNamespace :: Lens' Name (Maybe Text)

_namePrefix :: Lens' Name (Maybe Text)

Lenses for Instruction

data Instruction :: *

Constructors

Instruction

Fields

instructionTarget :: Text

instructionData :: Text

Instances

Eq Instruction

Data Instruction

Ord Instruction

Show Instruction

NFData Instruction

Typeable * Instruction

_instructionTarget :: Lens' Instruction Text

_instructionData :: Lens' Instruction Text

Reexport

module Control.Lens