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Text.XML.HXT.DOM.TypeDefs

Portability | portable
Stability | stable
Maintainer | Uwe Schmidt (uwe@fh-wedel.de)

Description
The core data types of the HXT DOM.
Synopsis

module Data.AssocList
type XmlTree = NTree XNode
type XmlTrees = NTrees XNode

data XNode

= XText String
| XCharRef Int
| XEntityRef String
| XCmt String
| XCdata String
| XPi QName XmlTrees
| XTag QName XmlTrees
| XDTD DTDElem Attributes
| XAttr QName
| XError Int String

data DTDElem

= DOCTYPE
| ELEMENT
| CONTENT
| ATTLIST
| ENTITY
| PENTITY
| NOTATION
| CONDSECT
| NAME
| PEREF

type Attributes = AssocList String String
c_ok :: Int
c_warn :: Int
c_err :: Int
c_fatal :: Int

data XmlNodeSet = XNS {

thisNode :: Bool
attrNodes :: [QName]
childNodes :: ChildNodes

}

type ChildNodes = [(Int, XmlNodeSet)]
module Text.XML.HXT.DOM.QualifiedName

Documentation
module Data.AssocList

type XmlTree = NTree XNode | Source

Node of xml tree representation

type XmlTrees = NTrees XNode | Source

List of nodes of xml tree representation

data XNode | Source

Represents elements
Constructors

XText String | ordinary text (leaf)
XCharRef Int | character reference (leaf)
XEntityRef String | entity reference (leaf)
XCmt String | comment (leaf)
XCdata String | CDATA section (leaf)
XPi QName XmlTrees | Processing Instr with qualified name (leaf) with list of attributes. If tag name is xml, attributs are "version", "encoding", "standalone", else attribute list is empty, content is a text child node
XTag QName XmlTrees | tag with qualified name and list of attributes (inner node or leaf)
XDTD DTDElem Attributes | DTD element with assoc list for dtd element features
XAttr QName | attribute with qualified name, the attribute value is stored in children
XError Int String | error message with level and text

Instances

Eq XNode
Ord XNode
Read XNode
Show XNode
Typeable XNode
NFData XNode
XmlNode XNode

data DTDElem | Source

Represents a DTD element
Constructors

DOCTYPE | attr: name, system, public, XDTD elems as children
ELEMENT | attr: name, kind name: element name kind: "EMPTY" | "ANY" | "#PCDATA" | children | mixed
CONTENT | element content attr: kind, modifier modifier: "" | "?" | "*" | "+" kind: seq | choice
ATTLIST | attributes: name - name of element value - name of attribute type: "CDATA" | "ID" | "IDREF" | "IDREFS" | "ENTITY" | "ENTITIES" | "NMTOKEN" | "NMTOKENS" |"NOTATION" | "ENUMTYPE" kind: "IMPLIED" | "DEFAULT"
ENTITY | for entity declarations
PENTITY | for parameter entity declarations
NOTATION | for notations
CONDSECT | for INCLUDEs, IGNOREs and peRefs: attr: type type = INCLUDE, IGNORE or %...;
NAME | attr: name for lists of names in notation types or nmtokens in enumeration types
PEREF | for Parameter Entity References in DTDs

Instances

Enum DTDElem
Eq DTDElem
Ord DTDElem
Read DTDElem
Show DTDElem
Typeable DTDElem
NFData DTDElem

type Attributes = AssocList String String | Source

Attribute list used for storing option lists and features of DTD parts

c_ok :: Int | Source

no error, everything is ok

c_warn :: Int | Source

Error level for XError, type warning

c_err :: Int | Source

Error level for XError, type error

c_fatal :: Int | Source

Error level for XError, type fatal error

data XmlNodeSet | Source

data type for representing a set of nodes as a tree structure this structure is e.g. used to repesent the result of an XPath query such that the selected nodes can be processed or selected later in processing a document tree
Constructors

XNS |

thisNode :: Bool | is this node part of the set ?
attrNodes :: [QName] | the set of attribute nodes
childNodes :: ChildNodes | the set of child nodes, a list of pairs of index and node set

Instances

Eq XmlNodeSet
Show XmlNodeSet
Typeable XmlNodeSet

type ChildNodes = [(Int, XmlNodeSet)] | Source

module Text.XML.HXT.DOM.QualifiedName
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