Oleg Broytmann writes:
... controling sorting in "dtml-in" ... .... but a colleague of mine, Dennis Otkidach suggested more general approach - to make a patch that will allow to pass a generic function to sort(), something like <dtml-in seq sort=surname sort_func=foobar> where sort_func points to a Python function (like locale.strcoll), or Python Script function, or such.
Any opinion? I see a minor problem here - if I want just locale-aware sort, I would write <dtml-in seq sort=surname sort_func=_.locale.strcoll>, A very good idea!
However, you should note: * "dtml-in" does not sort single values, but tuples ( sort_values, client), where "sort_values" is either a single value or a list of values and "client" is the current element. Your sort function must handle this case * "dtml-in" supports multiple sort keys. I would expect to have a comparison function for each sort key, with the global comparison function a composition of that for the sort keys. Thus, you can combine a locale sensitive sort with (e.g.) a date sort. Dieter