Extended zip() for lists

[Florian Reiser]

Hello,

I have 4 lists: a, b, c and d
Out of this 4 lists I want to build a table (e.g. list of lists):

a|b|c|d
---------------------------
a1|b1|c1|d1
a1|b2|    |d2

You see: the lists are not equally sized.
Is there a command which fills up the shorter lists with blanks?
Like an enhanced zip() command, maybe?

Regards
Florian Reiser

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