[lxml-dev] .text_content() should leave spaces. Tests included

[Max Ivanov]

The way I've implementent text_content() analog. I've no idea abouth
XPath, so maybe some of checks could be implemented as XPath
processing instruction. Thats' just scratch to show an idea, no deep
testing at all but results are ok for me.

inlinetags = [ <tags list from
http://htmlhelp.com/reference/html40/inline.html> ] #except <br>


     for el in doc.iter():
         if el.text and (el.tag not in self.inlinetags):
             el.text = ''.join((' ',el.text))
         if el.tail and (el.tag not in self.inlinetags):
             el.tail += ' '
         if el.tag == 'br':
             if el.tail and not el.tail.startswith('\n'):
                 el.tail = '\n'+el.tail
             else:
                 el.tail = '\n'
             el.drop_tag()