create_expression method

create_expression

Creates a parsed XPath expression with resolved namespaces. This is useful when an expression will be reused in an application since it makes it possible to compile the expression string into a more efficient internal form and preresolve all namespace prefixes which occur within the expression.

Returns

The compiled form of the XPath expression.

def create_expression(self, expression, resolver):
    ...
ParameterTypeDescription
expressionstrThe XPath expression string to be parsed.
resolveraspose.svg.dom.xpath.IXPathNSResolverThe resolver permits translation of all prefixes,
including the xml namespace prefix, within the XPath expression into
appropriate namespace URIs. If this is specified as null, any namespace
prefix within the expression will result in DOMException being
thrown with the code NAMESPACE_ERR.

Exceptions

ExceptionDescription
DOMExceptionINVALID_EXPRESSION_ERR: Raised if the expression is not
legal according to the rules of the IXPathEvaluator.
DOMExceptionNAMESPACE_ERR: Raised if the expression contains namespace
prefixes which cannot be resolved by the specified IXPathNSResolver.

See Also