Function: doc-file-to-man

doc-file-to-man is an autoloaded, interactive and byte-compiled function defined in help-fns.el.gz.

Signature

(doc-file-to-man FILE)

Documentation

Produce an nroff buffer containing the doc-strings from the DOC file.

Probably introduced at or before Emacs version 24.1.

Key Bindings

Source Code

;; Defined in /usr/src/emacs/lisp/help-fns.el.gz
;;; Replacements for old lib-src/ programs.  Don't seem especially useful.

;; Replaces lib-src/digest-doc.c.
;;;###autoload
(defun doc-file-to-man (file)
  "Produce an nroff buffer containing the doc-strings from the DOC file."
  (interactive (list (read-file-name "Name of DOC file: " doc-directory
                                     internal-doc-file-name t)))
  (or (file-readable-p file)
      (error "Cannot read file `%s'" file))
  (pop-to-buffer (generate-new-buffer "*man-doc*"))
  (setq buffer-undo-list t)
  (insert ".TH \"Command Summary for GNU Emacs\"\n"
          ".AU Richard M. Stallman\n")
  (insert-file-contents file)
  (let (notfirst)
    (while (search-forward "\^_" nil 'move)
      (if (= (following-char) ?S)
          (delete-region (1- (point)) (line-end-position))
        (delete-char -1)
        (if notfirst
            (insert "\n.DE\n")
          (setq notfirst t))
        (insert "\n.SH ")
        (insert (if (= (following-char) ?F) "Function " "Variable "))
        (delete-char 1)
        (forward-line 1)
        (insert ".DS L\n"))))
  (insert "\n.DE\n")
  (setq buffer-undo-list nil)
  (nroff-mode))