perlre in the POSIX section would lead me to believe [^A[:space:]] would be the desired syntax. A test is in order... 

% perl
$a = 'this is a test';
$a =~ s/[^i[:space:]]/-/g;
print $a,$/;

[download]
--i- i- - ----

[download]

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[ e d @ h a l l e y . c c ]

In reply to Re: Mixing builtin char-classes and negation by halley
in thread Mixing builtin char-classes and negation by Anonymous Monk

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