[Zope] Zope 2.1.0 &dtml-expr="5+5"; doesn't work anymore?

[Joe Grace]

Cool, thanks!  I'll replace them with proper HTML syntax expr's.

= Joe =

Jim Fulton wrote:

> Joe Grace wrote:
> >
> (snip)
> >
> > I just upgraded from Zope 2.0.0 (stable version I believe) to Zope 2.1.0
> > and my site broke where I use
> >
> >     &dtml-expr="";
>
> This was never correct usage. If it ever worked, it was a bug.
> When using the entity-regerance syntax in 2.0, you aren't allowed to
> specify any attributes. The form is:
>
>   &dtml-foo;
>
> which is equivalent to:
>
>   <dtml name="foo">
>
> >
> > syntax.  I looked in the release notes for any changes to DTML syntax
> > but noticed none which seem to cause my problem.  (However, this same
> > thing happened to me upgrading to 2.0.0 and the docs escaped my notice
> > then so...)  Basically, I'm using
> >
> >     <... &dtml-expr="Python calculations go here"; ...>
> >
> > e.g.,
> >
> >    <TR BGCOLOR="#&dtml-expr="_.hex( 0xF8 -
> > depth)[2:]";&dtml-expr="_.hex(
> > 0xF8 - depth)[2:]";FF">
> >
> > in several places.  I noticed that the entity syntax has been upgraded
> > with qualifiers.  I've also tried a whole bunch of syntactic variations
> > to get my &dtml-expr=""s to work, all to no avail.  Finally, I've
> > practiced newbie Zope Zen and tried to decipher DT_Var.py (or
> > thereabouts) to see if I could figure out the fate of &dtml-expr.
> > Anyway...
> >
> > Has &dtml-expr="" been deprecated, i.e., removed from Zope, or have I
> > just failed to find the new secret incantation which gets me an
> > expression using the entity syntax?
>
> It was never supported. I'm quite surprized that it worked.
>
> > Needless to say, any help appreciated.  I don't mind changing my code,
> > but I do need to know the new Zope 2.1.0 Zen of &dtml-expr="";).
>
> The new and old Zope zen is that you can't use '&dtml-expr="";'.
>
> Use <dtml expr="">.  If you need to use an entity reference, then
> you need to use a with or let tag:
>
>  <dtml-with "_(
>      bgcolor=_.hex( 0xF8 - depth)[2:]
>     )">
>   <TR BGCOLOR="#&dtml-bgcolor1;&dtml-bgcolor1;FF">
>  </dtml-with>
>
> Jim
>
> --
> Jim Fulton           mailto:jim@digicool.com
> Technical Director   (888) 344-4332              Python Powered!
> Digital Creations    http://www.digicool.com     http://www.python.org
>
> Under US Code Title 47, Sec.227(b)(1)(C), Sec.227(a)(2)(B) This email
> address may not be added to any commercial mail list with out my
> permission.  Violation of my privacy with advertising or SPAM will
> result in a suit for a MINIMUM of $500 damages/incident, $1500 for
> repeats.
>
> _______________________________________________
> Zope maillist  -  Zope@zope.org
> http://lists.zope.org/mailman/listinfo/zope
>           No cross posts or HTML encoding!
> (Related lists -
>  http://lists.zope.org/mailman/listinfo/zope-announce
>  http://lists.zope.org/mailman/listinfo/zope-dev )