Parsing very large xml datafiles with SAX: How to profile <anonymous> functions?

Hi Frederic

 Perhaps the simplest way to profile the individual functions in your
handlers is to write the individual handlers as regular
named functions, i.e. assigned to a variable in your work space (or function body)
and then two write the handler functions as wrapper functions that call these
by name

  startElement = function(name, attr, ...) {
     # code you want to run when we encounter the start of an XML element
  }

  myText = function(...) {
     # code
  }

  Now, when calling xmlEventParse()

   xmlEventParse(filename,
                  handlers = list(.startElement = function(...) startElement(...),
                                  .text = function(...) myText(...)))

Then the profiler will see the calls to startElement and myText.

There is small overhead of the extra layers, but you will get the profile information.

  D.

Parsing very large xml datafiles with SAX: How to profile <anonymous> functions?

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