Length (XmlDoc/XmlNode function)

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Length of string-value of selected node (XmlDoc and XmlNode classes)

Length returns the length of the string-value of a node including its Text descendants.


%number = nr:Length[( [xpath])] Throws XPathError

Syntax terms

%number A numeric variable to contain the returned value from Length.
nr An XmlDoc or XmlNode, used as the context node for the xpath argument expression. If an XmlDoc, the Root node is the context node.
xpath A Unicode string that is an XPath expression that results in a nodelist. The head of the nodelist is the node to process. Any other nodes in the nodelist are ignored.

This is an optional argument, and its default is a period (.), that is, the node referenced by the method object (nr). Prior to Sirius Mods Version 7.6, this is an EBCDIC string.


The following example displays the value 13:

begin %d object xmlDoc %d = new %d:loadXml('<t><a>Hell</a>' with - '<b>o, world!</b></t>') print %d:length('/t') end

Request-cancellation errors

This list is not exhaustive: it does not include all the errors that are request cancelling.

  • The xpath expression is invalid.
  • Result of xpath is empty.
  • Insufficient free space exists in CCATEMP.

See also

  • Value discusses the string-value of various node types.
  • For more information about using XPath expressions, see XPath.