TIL... I thought the 'value' of a hash must be a scalar value. So I ran:
$ perl -de 42 DB<5> @arr= qw ( x y z) DB<6> $href = { key => @arr } DB<7> x $href 0 HASH(0x4068718) 'key' => 'x' 'y' => 'z'
Boy, was I shocked when x $href did not yield:
x $href
0 HASH(0x4068718) 'key' => 3
The 'fat comma' fooled me.
Thank you for your comment! I empathize with your situation.
The values of hashes indeed must be scalar values; the problem here (which has caused many problems and even vulnerabilities) is that the fat comma doesn't construct a hash, just a list.
Let me rephrase - I assumed that the right hand side of a fat comma would have context scalar. However, since it just a comma, it has context list.
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TIL...
I thought the 'value' of a hash must be a scalar value. So I ran:
Boy, was I shocked when
x $hrefdid not yield:The 'fat comma' fooled me.
Thank you for your comment!
I empathize with your situation.
The values of hashes indeed must be scalar values; the problem here (which has caused many problems and even vulnerabilities) is that the fat comma doesn't construct a hash, just a list.
Let me rephrase - I assumed that the right hand side of a fat comma would have context scalar. However, since it just a comma, it has context list.