[ZPT] sequence unpacking syntax in TAL

[Dieter Maurer]

Evan Simpson wrote at 2003-7-11 15:01 -0500:
 > Fred L. Drake, Jr. wrote:
 > > This is a proposal to extend TAL to support sequence unpacking for the
 > > tal:define and tal:repeat attributes.
 > 
 > Looks workable.  I suggest that the unpack list should work even if 
 > there aren't as many names as elements in the sequence, that is:
 > 
 >  >>> name1, name2 = seq[:2]
 > 
 > It might be nice to allow a catchall variable for the sequence tail.  To 
 > emphasize the unpacking-nature (and to make parsing easier), we might 
 > want to use delimiters instead of commas, as in tal:define="[name1 name2 
 > *other] seq".
 > 
 > By analogy with this, we could also provide limited dict "unpacking" for 
 > keys that are valid variable names (common case in my experience), like 
 > tal:define="{key1 key2} mapvar".

Didn't we want to keep TAL as simple as possible?
Wasn't out motto: simple (and explicite) is beautyful.


Dieter