Function: doc-view-open-text

doc-view-open-text is an interactive and byte-compiled function defined in doc-view.el.gz.

Signature

(doc-view-open-text)

Documentation

Display the current doc's contents as text.

Key Bindings

Source Code

;; Defined in /usr/src/emacs/lisp/doc-view.el.gz
(defun doc-view-open-text ()
  "Display the current doc's contents as text."
  (interactive)
  (if doc-view--current-converter-processes
      (message "DocView: please wait till conversion finished.")
    (let ((txt (expand-file-name "doc.txt" (doc-view--current-cache-dir)))
          (page (doc-view-current-page)))
      (if (file-readable-p txt)
	  (let ((inhibit-read-only t)
		(buffer-undo-list t)
		(dv-bfn doc-view--buffer-file-name))
	    (erase-buffer)
            ;; FIXME: Replacing the buffer's PDF content with its txt rendering
            ;; is pretty risky.  We should probably use *another*
            ;; buffer instead, so there's much less risk of
            ;; overwriting the PDF file with some text rendering.
	    (set-buffer-multibyte t)
	    (insert-file-contents txt)
	    (doc-view--text-view-mode)
	    (setq-local doc-view--buffer-file-name dv-bfn)
	    (set-buffer-modified-p nil)
	    (doc-view-minor-mode)
            (goto-char (point-min))
            ;; Put point at the start of the page the user was
            ;; reading.  Pages are separated by Control-L characters.
            (re-search-forward page-delimiter nil t (1- page))
	    (add-hook 'write-file-functions
		      (lambda ()
                        ;; FIXME: If the user changes major mode and then
                        ;; saves the buffer, the PDF file will be clobbered
                        ;; with its txt rendering!
			(when (eq major-mode 'doc-view--text-view-mode)
			  (error "Cannot save text contents of document %s"
				 buffer-file-name)))
		      nil t))
	(doc-view-doc->txt txt 'doc-view-open-text)))))