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Postings from October 2003
Stas Bekman wrote:
> May be it's just late and I need to sleep over it, but consider:
>
> map { $_ => 1 } (a..c);
> map { $x = $_; "$x" => 1 } (a..c);
> map { ("$_" => 1) } (a..c);
> map { "$_" => 1 } (a..c);
>
> the first three lines are fine, the fourth produces an error:
>
> syntax error at /tmp/oops line 4, near "} ("
>
> what's wrong with $_ stringification as the key? and it only happens without
> () around the key/value pair.
Parsing issue : ambiguity blocks vs hash refs.
See perldoc -f map (but I'm sure you know this already). Good night :)
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