437efa7686
Checked in the sources for this because it is tracked upstream in CVS and I can't be bothered to deal with that right now.
75 lines
2.8 KiB
Common Lisp
75 lines
2.8 KiB
Common Lisp
;;;; -*- mode: lisp -*-
|
|
;;;;
|
|
;;;; $Id: dom.lisp,v 1.1.1.1 2004/06/07 18:49:56 scaekenberghe Exp $
|
|
;;;;
|
|
;;;; This is the generic simple DOM parser and printer interface.
|
|
;;;;
|
|
;;;; Copyright (C) 2002, 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)
|
|
|
|
;;; top level DOM parser interface
|
|
|
|
(defgeneric parse-xml-dom (stream output-type)
|
|
(:documentation "Parse a character stream as XML and generate a DOM of output-type"))
|
|
|
|
(defun parse-xml (stream &key (output-type :lxml))
|
|
"Parse a character stream as XML and generate a DOM of output-type, defaulting to :lxml"
|
|
(parse-xml-dom stream output-type))
|
|
|
|
(defun parse-xml-string (string &key (output-type :lxml))
|
|
"Parse a string as XML and generate a DOM of output-type, defaulting to :lxml"
|
|
(with-input-from-string (stream string)
|
|
(parse-xml-dom stream output-type)))
|
|
|
|
(defun parse-xml-file (filename &key (output-type :lxml))
|
|
"Parse a character file as XML and generate a DOM of output-type, defaulting to :lxml"
|
|
(with-open-file (in filename :direction :input)
|
|
(parse-xml-dom in output-type)))
|
|
|
|
;;; top level DOM printer interface
|
|
|
|
(defgeneric print-xml-dom (dom input-type stream pretty level)
|
|
(:documentation "Generate XML output on a character stream from a DOM of input-type, optionally pretty printing using level"))
|
|
|
|
(defun print-xml (dom &key (stream t) (pretty nil) (input-type :lxml) (header))
|
|
"Generate XML output on a character stream (t by default) from a DOM of input-type (:lxml by default), optionally pretty printing (off by default), or adding a header (none by default)"
|
|
(when header (format stream header))
|
|
(when pretty (terpri stream))
|
|
(print-xml-dom dom input-type stream pretty 1))
|
|
|
|
(defun print-xml-string (dom &key (pretty nil) (input-type :lxml))
|
|
"Generate XML output to a string from a DOM of input-type (:lxml by default), optionally pretty printing (off by default)"
|
|
(with-output-to-string (stream)
|
|
(print-xml dom :stream stream :pretty pretty :input-type input-type)))
|
|
|
|
;;; shared/common support functions
|
|
|
|
(defun print-spaces (n stream &optional (preceding-newline t))
|
|
(when preceding-newline
|
|
(terpri stream))
|
|
(loop :repeat n
|
|
:do (write-char #\Space stream)))
|
|
|
|
(defun print-solitary-tag (tag stream)
|
|
(write-char #\< stream)
|
|
(print-identifier tag stream)
|
|
(write-string "/>" stream))
|
|
|
|
(defun print-closing-tag (tag stream)
|
|
(write-string "</" stream)
|
|
(print-identifier tag stream)
|
|
(write-char #\> stream))
|
|
|
|
(defun print-attribute (name value stream)
|
|
(write-char #\space stream)
|
|
(print-identifier name stream t)
|
|
(write-string "=\"" stream)
|
|
(print-string-xml value stream)
|
|
(write-char #\" stream))
|
|
|
|
;;;; eof
|