If we are still not certain about the exact language to describe match then I
would ask if the 'case' token is really required. It seems that I would prefer
match expr:
pattern0:
block0
pattern1:
block1
.....
else:
blockdefault
where the else: clause is optional.
Also for me the unusual case is the assignment to names in the pattern and I
would prefer that that be marked in some way; I didn't like .name, but ?name
seems OK (or perhaps => name). Also the restriction that assigned vars should
only occur once in a pattern seems wrong. I would regard it as an additional
constraint on the match, but I do admit I don't fully understand what's allowed
in patterns.
Please disregard if the above is totally stupid.
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