It supports a bunch of them, basically anything you can dream up: 
s/.../.../
s#...#...#
s<...><...>
s[...][...]
s:...:...:
s;...;...;

[download]
The same sort of rules apply to things like qr, qw, qq and qx. This gives you the freedom to choose something that won't collide.

On that note, though, the following seems to be valid Perl code, if a little awkwardly:
my $sql = qq{ SELECT id FROM ${table} };
It works as far as I can tell, but my syntax hilighter goes nuts on it, closing the string at the first instance of '}', which makes sense. Perl seems to be extra careful about interpolating.

In reply to Re: RegExp Delimiter by tadman
in thread RegExp Delimiter by perchance

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