Multiple quoting

[Petr Hlustik]

Hello,

I was trying to define a folder-hook for the IMAP default message as posted
some time ago but could not do the necessary quoting right. I can do double
quoting:

push "l!~s 'FOLDER INTERNAL DATA'\n"

but how do I quote the whole push thing again if I need to have

folder-hook . push "l!~s 'FOLDER INTERNAL DATA'\n"

Sorry if this is trivial or I missed it in the manual.

Thanks,
Petr