Additional explanation for the [:...:] failure.

p4raw-id: //depot/perl@14624

diff --git a/pod/perldiag.pod b/pod/perldiag.pod
index 791b302..5be9ced 100644 (file)
--- a/pod/perldiag.pod
+++ b/pod/perldiag.pod
@@ -2782,7 +2782,9 @@ marked by <-- HERE in m/%s/
 
 (F) The class in the character class [: :] syntax is unknown.  The <-- HERE
 shows in the regular expression about where the problem was discovered.
-See L<perlre>.
+Note that the POSIX character classes do B<not> have the C<is> prefix
+the corresponding C interfaces have: in other words, it's C<[[:print:]]>,
+not C<isprint>.  See L<perlre>.
 
 =item POSIX getpgrp can't take an argument