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;;;; -*- mode: lisp -*-
;;;;
;;;; $Id: counter.lisp,v 1.2 2004/06/11 11:14:43 scaekenberghe Exp $
;;;;
;;;; A simple SSAX counter example that can be used as a performance test
;;;;
;;;; Copyright (C) 2004 Sven Van Caekenberghe, Beta Nine BVBA.
;;;;
;;;; You are granted the rights to distribute and use this software
;;;; as governed by the terms of the Lisp Lesser General Public License
;;;; (http://opensource.franz.com/preamble.html), also known as the LLGPL.
(in-package :s-xml)
(defclass count-xml-seed ()
((elements :initform 0)
(attributes :initform 0)
(characters :initform 0)))
(defun count-xml-new-element-hook (name attributes seed)
(declare (ignore name))
(incf (slot-value seed 'elements))
(incf (slot-value seed 'attributes) (length attributes))
seed)
(defun count-xml-text-hook (string seed)
(incf (slot-value seed 'characters) (length string))
seed)
(defun count-xml (in)
"Parse a toplevel XML element from stream in, counting elements, attributes and characters"
(start-parse-xml in
(make-instance 'xml-parser-state
:seed (make-instance 'count-xml-seed)
:new-element-hook #'count-xml-new-element-hook
:text-hook #'count-xml-text-hook)))
(defun count-xml-file (pathname)
"Parse XMl from the file at pathname, counting elements, attributes and characters"
(with-open-file (in pathname)
(let ((result (count-xml in)))
(with-slots (elements attributes characters) result
(format t
"~a contains ~d XML elements, ~d attributes and ~d characters.~%"
pathname elements attributes characters)))))
;;;; eof
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