1Parser::Style::Tree(3)User Contributed Perl DocumentationParser::Style::Tree(3)
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6 XML::Parser::Style::Tree
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9 use XML::Parser;
10 my $p = XML::Parser->new(Style => 'Tree');
11 my $tree = $p->parsefile('foo.xml');
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14 This module implements XML::Parser's Tree style parser.
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16 When parsing a document, "parse()" will return a parse tree for the
17 document. Each node in the tree takes the form of a tag, content pair.
18 Text nodes are represented with a pseudo-tag of "0" and the string that
19 is their content. For elements, the content is an array reference. The
20 first item in the array is a (possibly empty) hash reference containing
21 attributes. The remainder of the array is a sequence of tag-content
22 pairs representing the content of the element.
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24 So for example the result of parsing:
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26 <foo><head id="a">Hello <em>there</em></head><bar>Howdy<ref/></bar>do</foo>
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28 would be:
29 Tag Content
30 ==================================================================
31 [foo, [{}, head, [{id => "a"}, 0, "Hello ", em, [{}, 0, "there"]],
32 bar, [ {}, 0, "Howdy", ref, [{}]],
33 0, "do"
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35 ]
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37 The root document "foo", has 3 children: a "head" element, a "bar" ele‐
38 ment and the text "do". After the empty attribute hash, these are rep‐
39 resented in it's contents by 3 tag-content pairs.
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43perl v5.8.8 2003-08-18 Parser::Style::Tree(3)