I'm humbly asking for explanation of basic perl knowledge.
What puzzles me is that I'm having a code like that:
my @lexlist = @_;
@lexlist = sort keys %lexicon if(!@lexlist);
which works very well. This is the beginning of a subroutine
and all I want is to have in lexlist either a list of
elements I gave as arguments to this routine or - if
none were given - to create this list from some hash.
My problem is, that me thinks the following should be
my @lexlist = @_ or sort keys %lexicon;
unfortunatedly this doesn't work at all and I have no clue
why. It seems, that @_ is always evaluated to a true value
even if it is empty. Why this exceptional behaviour?
I'm sure I'm missing something very very basic...
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