[ZPT] Re: [Zope] prevent quoting in tal:attributes

[Jamie Heilman]

Evan Simpson wrote:
> <form method="GET">
> <input name="units" value="&euro;"
>        title="default is &euro;"
>        tal:attributes="value request/units | default" />
> <input type="submit" value="Convert to &euro;"
>        tal:define="units request/units | string:"
>        tal:attributes="value python:test(units, 'Convert to '+units, 
> default)" />
> </form>
> 
> Under the old system, macro expansion and execution will both mangle the 
> 'value' attributes, but not 'title', since it isn't dynamic.

Thats an unfortunate bug, presumeably due to the way in which
value="&euro;" (which *appears* static) and tal:attributes="value ..."
(clearly dynamic) are collapsed into a single dynamic statement by the
TAL generator (just a guess).  But thats no reason to go and break
entity quoting for all dynamicaly generated attributes, this is one of
those times the cure is worse than the ailment.
 

-- 
Jamie Heilman                     http://audible.transient.net/~jamie/