I do not think web2py is escaping twice ever. The problem as to do with the
input expected by pyfpdf. Can you please open a ticket with your solution
and I will test it asap?
On Saturday, 11 October 2014 04:42:54 UTC-5, Leonel Câmara wrote:
>
> Ok, I have tested this and I have to say sorry for dismissing it as an
> encoding problem, the bug is definitely there but it's weirder than it
> looks.
>
> I made the test with:
>
> controller:
> def test():
> response.view = 'generic.pdf'
> return {}
>
> view test.html:
> {{=TABLE(TR(TD("Row's %d" % 1, _width='30%'), TD("Something",
> _align="center", _width='30%'),TD("%d" % 1, _width='40%')))}}
>
>
> And the problem was there, it had also converted the apostrophe to
> 's. This is web2py helpers doing it btw.
>
> If you change test.html to this:
>
> <table>
> <tr>
> <td width="30%">Row's 1</td>
> <td width="30%" align="center">Something</td>
> <td width="40%">1</td>
> </tr>
> </table>
>
> Then the problem isn't there. This shows the problem is caused by the
> escaping being done by web2py helpers. It needs to be unescaped before
> going to the pdf.
>
>
> While trying to find the problem I found yet another problem, things are
> being escaped without logic because this was what fpdf's HTMLMixin was
> getting
>
> <table><tr><td width="30%">Row&#x27;s 1</td><td align="center"
> width="30%">Something</td><td width="40%">1</td></tr>
> </table>
>
> Did anyone notice the &? the ' was escaped again to &#x27;
> WTF? This seems like a bug with web2py's helpers as they shouldn't escape
> things that are already escaped.
>
> Ignoring that bug there's a simple fix to be made in
> gluon/contrib/fpdf/html.py make HTMLMixin escape the hell out of whatever
> it gets.
>
> class HTMLMixin(object):
> def write_html(self, text, image_map=None):
> "Parse HTML and convert it to PDF"
> h2p = HTML2FPDF(self, image_map)
> unescaped = h2p.unescape(text)
> while(unescaped != text):
> text = unescaped
> unescaped = h2p.unescape(text)
> h2p.feed(text)
>
>
> This finally solved the problem for me.
>
>
--
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