how to set up an macro to jump to a mail matching a pattern ?

[chris]

I want to bind key <Tab> to a macro which jump to a mail matching the pattern:
    e.g. here is a pattern.
    "~x .*@stardiviner"
I do not know where mutt has this function to jump to a mail.
macro index <esc><tab> ????<key sequence>

In one words:
    I want this macro to do this:
    Try to find whether has mail matching this pattern: "~x .*@stardiviner".
    If not, then jump to another pattern "~P".
    If not, then jump to next unread mail with <next-unread-mail>

Thanks in advance.

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