 | hxt-7.5: A collection of tools for processing XML with Haskell. | Contents | Index |
| Text.XML.HXT.Arrow.Namespace |
|
Version : $Id: Namespace.hs,v 1.13 20061112 14:52:59 hxml Exp $
namespace specific arrows
| attachNsEnv :: ArrowXml a => NsEnv -> a XmlTree XmlTree |
| cleanupNamespaces :: LA XmlTree (String, String) -> LA XmlTree XmlTree |
| collectNamespaceDecl :: LA XmlTree (String, String) |
| collectPrefixUriPairs :: LA XmlTree (String, String) |
| isNamespaceDeclAttr :: ArrowXml a => a XmlTree XmlTree |
| getNamespaceDecl :: ArrowXml a => a XmlTree (String, String) |
| processWithNsEnv :: ArrowXml a => (NsEnv -> a XmlTree XmlTree) -> NsEnv -> a XmlTree XmlTree |
| processWithNsEnvWithoutAttrl :: ArrowXml a => (NsEnv -> a XmlTree XmlTree) -> NsEnv -> a XmlTree XmlTree |
| propagateNamespaces :: ArrowXml a => a XmlTree XmlTree |
| uniqueNamespaces :: ArrowXml a => a XmlTree XmlTree |
| uniqueNamespacesFromDeclAndQNames :: ArrowXml a => a XmlTree XmlTree |
| validateNamespaces :: ArrowXml a => a XmlTree XmlTree |
attach all valid namespace declarations to the attribute list of element nodes.
This arrow is useful for document processing, that requires access to all namespace declarations at any element node, but which cannot be done with a simple processWithNsEnv.
does the real work for namespace cleanup.
The parameter is used for collecting namespace uris and prefixes from the input tree
collect all namespace declarations contained in a document
apply getNamespaceDecl to a whole XmlTree
collect all (namePrefix, namespaceUri) pairs from a tree
all qualified names are inspected, whether a namespace uri is defined, for these uris the prefix and uri is returned. This arrow is useful for namespace cleanup, e.g. for documents generated with XSLT. It can be used together with collectNamespaceDecl to cleanupNamespaces
process a document tree with an arrow, containing always the valid namespace environment as extra parameter.
The namespace environment is implemented as a Data.AssocList.AssocList
process all element nodes of a document tree with an arrow, containing always the valid namespace environment as extra parameter. Attribute lists are not processed.
See also: processWithNsEnv
propagate all namespace declarations "xmlns:ns=..." to all element and attribute nodes of a document.
This arrow does not check for illegal use of namespaces. The real work is done by propagateNamespaceEnv.
The arrow may be applied repeatedly if neccessary.
generate unique namespaces and add all namespace declarations to the root element
Calls cleanupNamespaces with collectNamespaceDecl
generate unique namespaces and add all namespace declarations for all prefix-uri pairs in all qualified names
useful for cleanup of namespaces in generated documents. Calls cleanupNamespaces with collectNamespaceDecl + collectPrefixUriPairs
validate the namespace constraints in a whole tree.
Result is the list of errors concerning namespaces. Predicates isWellformedQName, isWellformedQualifiedName, isDeclaredNamespaces and isWellformedNSDecl are applied to the appropriate elements and attributes.