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Re^3: Perl oddities

by Anonymous Monk
on Mar 02, 2005 at 13:09 UTC ( #435807=note: print w/replies, xml ) Need Help??

in reply to Re^2: Perl oddities
in thread Perl oddities

As noted, I find the oddity in that it warns about exactly one space - althought it doesn't do that always:
perl -wle 'print ("foo")' # Warning perl -wle 'print ("foo");' # No warning perl -wle 'print (")");' # Warning perl -wle 'print ("\x29");' # No warning
Now, I know why it's happening (I've studied the source), and I also know what the intent is, but that's beside the point. brian asked about oddities, and I do find this an oddity.

But the single space is not the only thing that I find an oddity. I also find it odd (as in, irregular, different that you would expect based on how similar constructs are handled - you know, what brian was asking for - so spare me the explainations on why it is this way - I know already) that is only has these warnings for print and I think one other function. For other functions, it doesn't warn.

$ perl -wle 'print ("foo") . "bar"' print (...) interpreted as function at -e line 1. Useless use of concatenation (.) or string in void context at -e line +1. foo $ perl -wle 'my $s = length ("foo") . "bar"'
Why warn only with print and a single space, but not with length or other functions? Or other amounts of whitespace? That I find an oddity.

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