isearch-delete-char

isearch-delete-char is an interactive compiled Lisp function in `isearch.el'.


(isearch-delete-char)

Discard last input item and move point back.
Last input means the last character or the last isearch command
that added or deleted characters from the search string,
moved point, toggled regexp mode or case-sensitivity, etc.
If no previous match was done, just beep.