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40 lines
1.5 KiB
Python
40 lines
1.5 KiB
Python
import re
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from bs4 import BeautifulSoup, SoupStrainer
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from six import iteritems
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class BS4Parser(object):
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def __init__(self, *args, **kwargs):
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# list type param of "feature" arg is not currently correctly tested by bs4 (r353)
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# so for now, adjust param to provide possible values until the issue is addressed
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kwargs_new = {}
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for k, v in iteritems(kwargs):
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if 'features' in k and isinstance(v, list):
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v = [item for item in v if item in ['html5lib', 'html.parser', 'html', 'lxml', 'xml']][0]
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elif 'parse_only' in k:
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if isinstance(v, dict):
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(parse_key, filter_dict), = kwargs[k].items()
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v = SoupStrainer(parse_key, filter_dict)
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else:
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v = SoupStrainer(v)
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elif 'preclean' in k and v:
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args = (re.sub(r'(?si)(<!--.*?-->|<style.*?</style>)', '', args[0]),) + args[1:]
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continue
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kwargs_new[k] = v
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tag, attr = [x in kwargs_new and kwargs_new.pop(x) or y for (x, y) in [('tag', 'table'), ('attr', '')]]
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if attr:
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args = (re.sub(r'(?is).*(<%(tag)s[^>]+%(attr)s[^>]*>.*</%(tag)s>).*' % {'tag': tag, 'attr': attr},
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r'<html><head></head><body>\1</body></html>', args[0]).strip(),) + args[1:]
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self.soup = BeautifulSoup(*args, **kwargs_new)
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def __enter__(self):
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return self.soup
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def __exit__(self, exc_ty, exc_val, tb):
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self.soup.clear(True)
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self.soup = None
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