On 06May2021 03:43, Dennis Sweeney <[email protected]> wrote:
>Maybe I'm missing something, but why do you need the SimpleNamespace at all?
>Why not make your own mapping as in
>
> class StringMapper:
> ...
> def __getitem__(self, s):
> # Whatever arbitrary behavior you want
> # Process suffixes, etc here, for example:
> if s.endswith(".lc"):
> return self.wrapped[s.removesuffix(".lc")].lower()
> return self.wrapped[s]
>
> format_string.format_map(StringMapper(whatever))
>
>Maybe then the data can just be data and this wrapper can handle all
>the formatting conversions.
All this is somewhat orthoganal to adding more !foo things.
If we're not talking about extending the conversions, we should probably
take this over to python-list, because the ":foo" stuff is just
implementation.
That said, because my tags can have dots in their names and I want to be
able to write:
{tag.name.with.dot}
and this is accomplished with an elaborate SimpleNamespace subclass to
make the .name.with.dot stuff work as attributes. Just don't ask :-(
Oh, you did :-)
Anyway, I may be shifting sideways per my recent ":foo" post, using a
new class which is a magic view of the TagSet and a Formatter subclass
which parses the field_names itself (thus grabbing the dotted
identifier). Still a work in progress.
Cheers,
Cameron Simpson <[email protected]>
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