What is going on with this html5lib script?

StackOverflow https://stackoverflow.com/questions/9107761

  •  21-04-2021
  •  | 
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Pergunta

Trying to process a very simple html5 script and render it using html5lib

import html5lib

html = '''<!DOCTYPE html>
<html lang="en">
    <head>
        <title>Hi</title>
    </head>
    <body>
        <script src="a.js"></script>
        <script src="b.js"></script>
    </body>
</html>
'''

parser = html5lib.HTMLParser(tree = html5lib.treebuilders.getTreeBuilder("lxml"))
walker = html5lib.treewalkers.getTreeWalker("lxml")
serializer = html5lib.serializer.htmlserializer.HTMLSerializer()

document = parser.parse(html)
stream = walker(document)
theHTML = serializer.render(stream)

print theHTML

The output looks like:

<!DOCTYPE html><html lang=en><head>
        <title>Hi</title>
    </head>
    <body>
        <script src=a.js></script>
        <script src=b.js></script>

Yup. It just cuts off mid way. Changing the tree builder from lxml to dom does nothing. Tweaking the HTML changes the output but it's still pretty corrupt.

Foi útil?

Solução

So the key seems to be omit_optional_tags=False somehow with that missing it eats the end of the output.

parser = html5lib.HTMLParser(tree = html5lib.treebuilders.getTreeBuilder("lxml"))
document = parser.parse(html)    
walker = html5lib.treewalkers.getTreeWalker("lxml")
stream = walker(document)
s = serializer.htmlserializer.HTMLSerializer(omit_optional_tags=False)
output_generator = s.serialize(stream)
for item in output_generator:
         print item


<!DOCTYPE html>
<html lang=en>
<head>


<title>
Hi
</title>


</head>


<body>


<script src=a.js>
</script>


<script src=b.js>
</script>




</body>
</html>
>>>
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