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54 | ||
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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