Re: [Zope-dev] Setting vars in expression eval() namespace

2001-02-22 Thread Julio Maia

On Wed, Feb 21, 2001 at 10:53:54PM +, Steve Alexander wrote:
 Julio Maia wrote:
 
  
  This is not going to be handy once the block is composed by a large dtml
  block. I wonder if dtml-var shouldn't support the syntax I've described
  above.
 
 I suggest instead using a PythonScript, and using the DTML class that you
 can import from the Products.PythonScripts.standard module.
 
 You can use this to render DTML on the fly, as you wish.

I guess it would be better to allow constructs as:

dtml-var "table('main','col')"
   dtml-var "font('standard')"Some text/dtml-var 
/dtml-var

Where 'table' and 'font' are PythonScripts that return the implicit blocks passed to 
them (these blocks may have a default variable name in the expression's namespaces) 
enclosed by the correspondent html blocks, with the format ('main, 'standard') mapped 
to html attributes/values using some dictionaries. This could help to separate logic 
and presentation in dtml code with a minor syntax addition.

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Re: [Zope-dev] Setting vars in expression eval() namespace

2001-02-22 Thread Julio Maia

On Wed, Feb 21, 2001 at 10:24:57PM +, Steve Alexander wrote:
 Julio Maia wrote:
 
   Hi,
  
   I'm trying to create a tag to evaluate the expression passed to it,
   adding in the expression eval namespace a variable that contains
   the result of dtml processing of the tag's block. For instance, the
following construct:
  
   dtml-bvar "foo(a=1)" var="block"
 some text dtml-var "1+2"
   /dtml-bvar
  
   would invoke the expression "foo(a=1)" with a variable named 'block'
set to 'some text 3' in the expression's namespace (btw, is it
   possible to achieve this using regular dtml?).
 
 This may be too simple example, but how about:
 
 dtml-var "foo(a=1, block=('some text %s' % (1+2)))"

This is not going to be handy once the block is composed by a large dtml block. I 
wonder if dtml-var shouldn't support the syntax I've described above.

 
 --
 Steve Alexander
 Software Engineer
 Cat-Box limited
 http://www.cat-box.net
 
 

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