filters.py 文件源码

def htmlentityreplace_errors(ex):
    """An encoding error handler.

    This python `codecs`_ error handler replaces unencodable
    characters with HTML entities, or, if no HTML entity exists for
    the character, XML character references.

    >>> u'The cost was \u20ac12.'.encode('latin1', 'htmlentityreplace')
    'The cost was €12.'
    """
    if isinstance(ex, UnicodeEncodeError):
        # Handle encoding errors
        bad_text = ex.object[ex.start:ex.end]
        text = _html_entities_escaper.escape(bad_text)
        return (compat.text_type(text), ex.end)
    raise ex