domDoc(n) domDoc(n)
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NAME
domDoc - Manipulates an instance of a DOM document object
SYNOPSIS
domDocObjCmd method ?arg arg ...?
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DESCRIPTION
This command manipulates one particular instance of a document object. method indicates a specific
method of the document class. These methods should closely conform to the W3C recommendation "Docu-ment "Document
ment Object Model (Core) Level 1" (http://www.w3.org/TR/REC-DOM-Level-1/level-one-core.html) Look at
these documents for a deeper understanding of the functionality.
The valid methods are:
documentElement ?objVar?
Returns the top most element in the document (the root element).
getElementsByTagName name
Returns a list of all elements in the document matching (glob style) name.
getElementsByTagNameNS uri localname
Returns a list of all elements in the subtree matching (glob style) localname and having the
given namespace uri.
createElement tagName ?objVar?
Creates (allocates) a new element node with node name tagName, append it to the hidden frag-
ment list in the document object and returns the node object. If objVar is given the new node
object store in this variable.
createElementNS url tagName ?objVar?
Creates (allocates) a new element node within a namespace having uri as the URI and node name
tagName, which could include the namespace prefix, append it to the hidden fragment list in
the document object and returns the node object. If objVar is given the new node object store
in this variable.
createTextNode text ?objVar?
Creates (allocates) a new text node with node value text, appends it to the hidden fragment
list in the document object and returns the node object. If objVar is given, the new node
object is stored in this variable.
createComment text ?objVar?
Creates (allocates) a new comment node with value text, appends it to the hidden fragment list
in the document object and returns the node object. If objVar is given, the new comment node
object is stored in this variable.
createCDATASection data ?objVar?
Creates (allocates) a new CDATA node with node value data, appends it to the hidden fragment
list in the document object and returns the node object. If objVar is given, the new node
object is stored in this variable.
createProcessingInstruction target data ?objVar?
Creates a process instruction, appends it to the hidden fragment list in the document object
and returns the node object. If objVar is given, the new node object is stored in this vari-
able.
delete Explicitly deletes the document, including the associated Tcl object commands (for nodes,
fragment/new nodes, the document object itself) and the underlying DOM tree.
getDefaultOutputMethod
Returns the default output method of the document. This is usually a result of a XSLT trans-
formation.
asXML ?-indent none/1..8? ?-channel channelId? ?-escapeNonASCII? -doctypeDeclaration <boolean>
Returns the DOM tree as an (optional indented) XML string or sends the output directly to the
given channelId. If the option -escapeNonASCII is given, every non 7 bit ASCII character in
attribute values or element PCDATA content will be escaped as character reference in decimal
representation. The flag -doctypeDeclaration determines, whether there will be a DOCTYPE dec-
laration emitted before the first node of the document. The default is, to do not. The DOCTYPE
name will always be the element name of the document element. An external entity declaration
of the external subset is only emitted, if the document has a system identifier.
asHTML ?-channel channelId? ?-escapeNonASCII? ?-htmlEntities? -doctypeDeclaration <boolean>
Returns the DOM tree serialized acording to HTML rules (HTML elements are recognized regard-
less of case, without end tags for emtpy HTML elements etc.), as string or sends the output
directly to the given channelId. If the option -escapeNonASCII is given, every non 7 bit ASCII
character in attribute values or element PCDATA content will be escaped as character reference
in decimal representation. If the option -htmlEntities is given, a character is outputed using
a HTML 4.01 character entity reference, if one is defined for it. The flag -doctypeDeclaration
determines, whether there will be a DOCTYPE declaration emitted before the first node of the
document. The default is, to do not. The DOCTYPE name will always be the element name of the
document element without case normalization. An external entity declaration of the external
subset is only emitted, if the document has a system identifier. The doctype declaration will
be written from the avaliable informations, without check, if this is a known (w3c) HTML ver-
sion information or if the document confirms to the given HTML version.
asText The asText method outputs the result tree by outputting the string-value of every text node in
the result tree in document order without any escaping. In effect, this is what the xslt out-
put method "text" (XSLT 1.0 recommendation, section 16.3) does.
publicId ?publicId?
Returns the public identifier of the doctype declaration of the document, if there is one,
otherwise the empty string. If there is a value given to the method, the public identifier of
the document is set to this value.
systemId ?systemId?
Returns the system identifier of the doctype declaration of the document, if there is one,
otherwise the empty string. If there is a value given to the method, the system identifier of
the document is set to this value.
xslt ?-parameters parameterList? ?-ignoreUndeclaredParameters? ?-xsltmessagecmd script? stylesheet
?outputVar?
Applies an XSLT transformation on the whole document of the node object using the XSLT
stylesheet (given as domDoc). Returns a document object containing the result document of the
transformation and stores that document object in the optional outputVar, if that was given.
The optional -parameters option sets top level <xsl:param to string values. The parameterList
has to be a tcl list consisting of parameter name and value pairs.
If the option -ignoreUndeclaredParameters is given, then parameter names in the parameterList
given to the -parameters options that are not declared as top-level parameters in the
stylesheet are silently ignored. Without this option, an error is raised, if the user tries to
set a top-level parameter, which is not declared in the stylesheet.
The -xsltmessagecmd option sets a callback for xslt:message elements in the stylesheet. The
actual command consists of the script, given as argument to the option, appended with the XML
Fragment from instantiating the xsl:message element content as string (as if the XPath
string() function would have been applied to the XML Fragment) and a flag, which indicates, if
the xsl:message has an attribute "terminate" with the value "yes".
toXSLTcmd ?objVar?
If the DOM tree represents a valid XSLT stylesheet, this method transforms the DOM tree into a
xslt command, otherwise it returns error. The created xsltCmd is returnd and stored in the
objVar, if a var name was given. A successful transformation of the DOM tree to a xsltCmd
removes the domDoc cmd and all nodeCmds of the document.
The syntax of the created xsltCmd is:
xsltCmd ?-parameters parameterList? ?-ignoreUndeclaredParameters? ?-xsltmessagecmd script? docNode ?outputVar?
The options are the same as for the domDoc xslt method; see there for a description. The docN-
ode argument is the XML document to transform (given as domDoc). The command returns a docu-
ment object containing the result document of the transformation and stores it in the optional
outputVar, if that was given.
normalize ?-forXPath?
Puts all Text nodes in the document into a "normal" form where only structure (e.g., elements,
comments, processing instructions and CDATA sections) separates Text nodes, i.e., there are
neither adjacent Text nodes nor empty Text nodes. If the option -forXPath is given, all CDATA
sections in the nodes are converted to text nodes, as a first step before the normalization.
Otherwise, if an unknown method name is given, the command with the same name as the given metho
within the namespace ::dom::domDoc is tried to be executed. This allows quick method additions on Tcl
level.
Newly created nodes are appended to a hidden fragment list. If there are not moved into the tree they
are automaticaly deleted, when the whole document gets deleted.
SEE ALSO
dom, domNode
KEYWORDS
DOM node creation, document element
Tcl domDoc(n)
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