Bug #13879
closed[Not sure if a bug or not] case/when menus and trailing ',' commas in when clauses
Description
Hello,
I am not sure if the following is a bug or a feature.
x = 'foobar'
case x
when 'a','b','c',
x = 5
end
puts x
Works fine.
But this here:
x = 'foobar'
case x
when 'a','b','c',
puts 5
end
Leads to this error:
syntax error, unexpected tINTEGER, expecting keyword_do or '{' or '('
Is this deliberately so? My confusion is that case/when works fine
in one case, but leads to an error in another case. I am not
sure if it is a bug or not, but I believe in the first case,
the user may have not wanted to put a trailing ',' there and
simply forgot to remove it. That is actually how I found out about
this behaviour, since I have a huge case/when menu and sometimes
make typos when re-arranging entries, including such trailing ','
via copy/paste jobs. :)
If it is a bug then perhaps it can be fixed; if it is not a
bug, perhaps the official documentation could explain this
feature? Or perhaps if trailing ',' are not useful, there
may be a warning issued or something in the first case.
Anyway, I am just reporting this in case nobody knows about
this - feel free to close this issue at any moment in time.
Thanks.