Jonathan Lang wrote:

Close.  I'm thinking "added functionality for semicolon alternatives"
rather than the "replace the semicolon" stunt that Semi::Semicolons
pulls.  In particular, as long as there's no ambiguity between
prefix:<?> and postfix:<?>, I think that it would be quite useful for
postfix:<?> to act as a semicolon that additionally sets $_ equal to
the expression's value, allowing for a pseudo-Prolog style of syntax
(i.e., the code could include questions as well as declarations and

A slightly tangental thought: is the behavior of C<given> with no block defined? I.e. is

given $foo { when 1 {...} };

equivalent to

given $foo;
when 1 {...};

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