archive-summarizearchive-summarize is a compiled Lisp function in `
arc-mode.el'. (archive-summarize &optional SHUT-UP) Parse the contents of the archive file in the current buffer. Place a dired-like listing on the front; then narrow to it, so that only that listing is visible (and the real data of the buffer is hidden). Optional argument SHUT-UP, if non-nil, means don't print messages when parsing the archive.