| # (c) 2005 Ian Bicking and contributors; written for Paste (http://pythonpaste.org) |
| # Licensed under the MIT license: http://www.opensource.org/licenses/mit-license.php |
| |
| import cgi |
| import six |
| import re |
| from six.moves import html_entities |
| from six.moves.urllib.parse import quote, unquote |
| |
| |
| __all__ = ['html_quote', 'html_unquote', 'url_quote', 'url_unquote', |
| 'strip_html'] |
| |
| default_encoding = 'UTF-8' |
| |
| def html_quote(v, encoding=None): |
| r""" |
| Quote the value (turned to a string) as HTML. This quotes <, >, |
| and quotes: |
| """ |
| encoding = encoding or default_encoding |
| if v is None: |
| return '' |
| elif isinstance(v, six.binary_type): |
| return cgi.escape(v, 1) |
| elif isinstance(v, six.text_type): |
| if six.PY3: |
| return cgi.escape(v, 1) |
| else: |
| return cgi.escape(v.encode(encoding), 1) |
| else: |
| if six.PY3: |
| return cgi.escape(six.text_type(v), 1) |
| else: |
| return cgi.escape(six.text_type(v).encode(encoding), 1) |
| |
| _unquote_re = re.compile(r'&([a-zA-Z]+);') |
| def _entity_subber(match, name2c=html_entities.name2codepoint): |
| code = name2c.get(match.group(1)) |
| if code: |
| return six.unichr(code) |
| else: |
| return match.group(0) |
| |
| def html_unquote(s, encoding=None): |
| r""" |
| Decode the value. |
| |
| """ |
| if isinstance(s, six.binary_type): |
| s = s.decode(encoding or default_encoding) |
| return _unquote_re.sub(_entity_subber, s) |
| |
| def strip_html(s): |
| # should this use html_unquote? |
| s = re.sub('<.*?>', '', s) |
| s = html_unquote(s) |
| return s |
| |
| def no_quote(s): |
| """ |
| Quoting that doesn't do anything |
| """ |
| return s |
| |
| _comment_quote_re = re.compile(r'\-\s*\>') |
| # Everything but \r, \n, \t: |
| _bad_chars_re = re.compile('[\x00-\x08\x0b-\x0c\x0e-\x1f]') |
| def comment_quote(s): |
| """ |
| Quote that makes sure text can't escape a comment |
| """ |
| comment = str(s) |
| #comment = _bad_chars_re.sub('', comment) |
| #print('in ', repr(str(s))) |
| #print('out', repr(comment)) |
| comment = _comment_quote_re.sub('->', comment) |
| return comment |
| |
| url_quote = quote |
| url_unquote = unquote |
| |
| if __name__ == '__main__': |
| import doctest |
| doctest.testmod() |
