isearch-edit-string
isearch-edit-string is an interactive compiled Lisp function in `isearch.el
'.
(isearch-edit-string)
Edit the search string in the minibuffer.
The following additional command keys are active while editing.
RET to resume incremental searching with the edited string.
C-s to resume isearching forward.
C-r to resume isearching backward.
C-M-i to complete the search string using the search ring.