EDataServer.xml_xpath_eval
Description: Reference for EDataServer.xml_xpath_eval

### Function

# EDataServerxml_xpath_eval

since: 3.26

#### Declaration [src]

    xmlXPathObject*
    e_xml_xpath_eval (
      xmlXPathContext* xpath_ctx,
      const gchar* format,
      ...
    )

#### Description [src]

Evaluates path specified by `format` and returns its #xmlXPathObjectPtr, in case the path evaluates to a non-empty node set. See also `e_xml_xpath_eval_as_string()` which evaluates the path to string.

Available since: 3.26

This function is not directly available to language bindings.

#### Parameters

`xpath_ctx`

  Type: `xmlXPathContext*`

  An #xmlXPathContextPtr.

  The data is owned by the caller of the function.

`format`

  Type: `const gchar*`

  Printf-like format specifier of path to evaluate.

  The data is owned by the caller of the function.
  The value is a NUL terminated UTF-8 string.

`...`

  Type: ``

  Arguments for the `format`.

#### Return value

Type: `xmlXPathObject*`

A new #xmlXPathObjectPtr which references given path, or `NULL` if path cannot be found or when it evaluates to an empty nodeset. Free returned pointer with xmlXPathFreeObject(), when no longer needed.

The caller of the function takes ownership of the data, and is responsible for freeing it.
The return value can be `NULL`.