Xml (filter)

In encode mode, the xml filter converts input stream (which must contain valid UTF-8 characters) into a form suitable for inclusion into a XML or HTML document, i.e. it replaces <, >, and & with &lt;, &gt;, and &amp;, correspondingly, and replaces invalid characters with their numeric character reference representation.

In decode mode, a reverse operation is performed.

The filter does not take arguments.

The following object, declared in mailutils/filter.h describes the filter:

extern mu_filter_record_t mu_xml_filter;

The example below shows how to create an instance of this filter in encode mode for reading:

  int rc;          /* Return code */
  mu_stream_t flt; /* Filter stream */
  mu_stream_t input; /* Input stream */
 
  initialize_input_stream (&stream);
  rc = mu_filter_stream_create (&flt, input, "xml", MU_FILTER_DECODE, MU_STREAM_READ);