doudi2005 2018-01-04 21:24
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将HTML解析为XML

I'm working with text/HTML diffing engine that's using XML in it's core but we're inputting HTML5 data, I wonder how to take care of tags that don't need to be closed in HTML5, but must be closed in XML. For Example:

<img alt="" height="239" src="http://example.com/image.png" width="272">

Do I need to convert every tag manually (Just like this example)?

Is there a tool that would do this for me? And save a headache escaping all self-closing HTML tags?

For example xml_parse() runs following code like it has an error, but body has a valid HTML which is invalid XML:

<?xml version="1.0" encoding="UTF-8"?>
<!DOCTYPE html [<!ENTITY Aacute "&#193;">]>
<body>
    <div>
        <figure class="table ">
            <figcaption>
                <p class="table_number"></p>
                <p class="table_title" epub:type="title"></p>
            </figcaption>
            <table class="code ">
                <tr>
                    <td width="50">
                        <img alt="" height="239" src="http://example.com/image.png" width="272">
                    </td>
                </tr>
            </table>
        </figure>
    </div>
</body>
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3条回答 默认 最新

  • dqch34769 2018-01-10 17:57
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    In general, you can use PHP's built-in DOM handling routines to parse HTML and output XML:

    $html = <<< HEREDOC
<!DOCTYPE html>
<body>
    <div>
        <figure class="table ">
            <figcaption>
                <p class="table_number"></p>
                <p class="table_title" epub:type="title"></p>
            </figcaption>
            <table class="code ">
                <tr>
                    <td width="50">
                        <img alt="" height="239" src="http://example.com/image.png" width="272">
                    </td>
                </tr>
            </table>
        </figure>
    </div>
</body>
HEREDOC;

$dom = new DOMDocument;
$dom->loadHTML($html);
echo $dom->saveXml($dom), PHP_EOL;

    Unfortunately, your use of an XML prolog and attempt to extend the HTML 5 Doctype as if it were an XML/SGML Doctype prevents the DOM library from successfully parsing it.

    本回答被题主选为最佳回答 , 对您是否有帮助呢?
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