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| 55 | <H2><A NAME="SECTION0015720000000000000000"></A><A NAME="dom-example"></A> |
| 56 | <BR> |
| 57 | 13.7.2 DOM Example |
| 58 | </H2> |
| 59 | |
| 60 | <P> |
| 61 | This example program is a fairly realistic example of a simple |
| 62 | program. In this particular case, we do not take much advantage |
| 63 | of the flexibility of the DOM. |
| 64 | |
| 65 | <P> |
| 66 | <div class="verbatim"> |
| 67 | <pre>import xml.dom.minidom |
| 68 | |
| 69 | document = """\ |
| 70 | <slideshow> |
| 71 | <title>Demo slideshow</title> |
| 72 | <slide><title>Slide title</title> |
| 73 | <point>This is a demo</point> |
| 74 | <point>Of a program for processing slides</point> |
| 75 | </slide> |
| 76 | |
| 77 | <slide><title>Another demo slide</title> |
| 78 | <point>It is important</point> |
| 79 | <point>To have more than</point> |
| 80 | <point>one slide</point> |
| 81 | </slide> |
| 82 | </slideshow> |
| 83 | """ |
| 84 | |
| 85 | dom = xml.dom.minidom.parseString(document) |
| 86 | |
| 87 | def getText(nodelist): |
| 88 | rc = "" |
| 89 | for node in nodelist: |
| 90 | if node.nodeType == node.TEXT_NODE: |
| 91 | rc = rc + node.data |
| 92 | return rc |
| 93 | |
| 94 | def handleSlideshow(slideshow): |
| 95 | print "<html>" |
| 96 | handleSlideshowTitle(slideshow.getElementsByTagName("title")[0]) |
| 97 | slides = slideshow.getElementsByTagName("slide") |
| 98 | handleToc(slides) |
| 99 | handleSlides(slides) |
| 100 | print "</html>" |
| 101 | |
| 102 | def handleSlides(slides): |
| 103 | for slide in slides: |
| 104 | handleSlide(slide) |
| 105 | |
| 106 | def handleSlide(slide): |
| 107 | handleSlideTitle(slide.getElementsByTagName("title")[0]) |
| 108 | handlePoints(slide.getElementsByTagName("point")) |
| 109 | |
| 110 | def handleSlideshowTitle(title): |
| 111 | print "<title>%s</title>" % getText(title.childNodes) |
| 112 | |
| 113 | def handleSlideTitle(title): |
| 114 | print "<h2>%s</h2>" % getText(title.childNodes) |
| 115 | |
| 116 | def handlePoints(points): |
| 117 | print "<ul>" |
| 118 | for point in points: |
| 119 | handlePoint(point) |
| 120 | print "</ul>" |
| 121 | |
| 122 | def handlePoint(point): |
| 123 | print "<li>%s</li>" % getText(point.childNodes) |
| 124 | |
| 125 | def handleToc(slides): |
| 126 | for slide in slides: |
| 127 | title = slide.getElementsByTagName("title")[0] |
| 128 | print "<p>%s</p>" % getText(title.childNodes) |
| 129 | |
| 130 | handleSlideshow(dom) |
| 131 | </pre> |
| 132 | <div class="footer"> |
| 133 | <a href="minidom-example.txt" type="text/plain">Download as text (original file name: <span class="file">minidom-example.py</span>).</a> |
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