html5lib-truncation

html5lib-truncation is a html5lib filter implementation, which can truncate HTML to specific length in display, but never breaks HTML tags.

There is a shortcut function, the simplest way to use it:

>>> from html5lib_truncation import truncate_html
>>>
>>> html = u'<p>A <a href="#">very very long link</a></p>'
>>> truncate_html(html, 8)
u'<p>A <a href=#>very</a>'
>>> truncate_html(html, 8, break_words=True)
u'<p>A <a href=#>very ve</a>'
>>> truncate_html(html, 20, end='...')
u'<p>A <a href=#>very very...</a>'
>>> truncate_html(html, 20, end='...', break_words=True)
u'<p>A <a href=#>very very lon...</a>'

Installation

pip install html5lib-truncation

Don't forget to put it into your requirements.txt or setup.py.

API Overview

The core API of html5lib-truncation is the filter:

import html5lib
from html5lib_truncation import TruncationFilter

etree = html5lib.parse(u'<p>A <a href="#">very very long link</a></p>')
walker = html5lib.getTreeWalker('etree')

stream = walker(etree)
stream = TruncationFilter(stream, 20, end='...', break_words=True)

serializer = html5lib.serializer.HTMLSerializer()
serialized = serializer.serialize(stream)

print(u''.join(serialized).strip())

The output is <p>A <a href=#>very very lon...</a>.

Issues

If you want to report bugs or other issues, please create issues on GitHub Issues.

Contributes

You can send a pull reueqst on GitHub.