> Is this a bug?

Perl doesn't have a list data type but list operators.

The scalar comma operator returns the last element.

An empty list in scalar context is undef.°

HTH

Update

> The differences between split and a normal subroutine should be clarified.

a default subroutine has no prototype, split has.

(Still, there are anormal functions without simple prototype )

Update

Sorry split is one of those built-ins without reproducible prototype, hence it's more complex: 

  DB<4> x prototype "CORE::push"
0  '\\@@'
  DB<5> x prototype "CORE::split"
0  undef

[download]

Cheers Rolf
(addicted to the Perl Programming Language :)
Wikisyntax for the Monastery

°) you seem to belive that naked parentheses impose list context and create a list value, but they are only grouping precedence !

... see List's terminology and Parentheses in Perl for details.

In reply to Re: Split does not behave like a subroutine by LanX
in thread Split does not behave like a subroutine by bojinlund

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