Gtk.TextIter.prototype.backward_search

function backward_search(str:String, flags:Gtk.TextSearchFlags, limit:Gtk.TextIter):Boolean {
    // Gjs wrapper for gtk_text_iter_backward_search()
}

Same as Gtk.forward_search, but moves backward.

str: search string
flags: bitmask of flags affecting the search
limit: location of last possible match_start, or null for start of buffer
Returns: whether a match was found