From d7e351e11b8e6a101872670f9151f39a2500ac4b Mon Sep 17 00:00:00 2001
From: John Kitchin <jkitchin@andrew.cmu.edu>
Date: Sun, 3 Aug 2014 13:48:23 -0400
Subject: [PATCH] rm el files that are loaded

---
 doi-utils.el | 431 ---------------------------------------------------
 org-show.el  | 357 ------------------------------------------
 2 files changed, 788 deletions(-)
 delete mode 100644 doi-utils.el
 delete mode 100644 org-show.el

diff --git a/doi-utils.el b/doi-utils.el
deleted file mode 100644
index afba18a..0000000
--- a/doi-utils.el
+++ /dev/null
@@ -1,431 +0,0 @@
-
-;;; doi-utils.el --- get bibtex entries and pdfs from a DOI
-
-;; Copyright(C) 2014 John Kitchin
-
-;; Author: John Kitchin <jkitchin@andrew.cmu.edu>
-;; This file is not currently part of GNU Emacs.
-
-;; This program is free software; you can redistribute it and/or
-;; modify it under the terms of the GNU General Public License as
-;; published by the Free Software Foundation; either version 2, or (at
-;; your option) any later version.
-
-;; This program is distributed in the hope that it will be useful, but
-;; WITHOUT ANY WARRANTY; without even the implied warranty of
-;; MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
-;; General Public License for more details.
-
-;; You should have received a copy of the GNU General Public License
-;; along with this program ; see the file COPYING.  If not, write to
-;; the Free Software Foundation, Inc., 59 Temple Place - Suite 330,
-;; Boston, MA 02111-1307, USA.
-
-;;; Commentary:
-;;
-;; Lisp code to generate and update bibtex entries from a DOI, and to
-;; download pdfs from publisher websites from a DOI.
-;;
-;; Package-Requires: ((org-ref))
-
-(require 'json)
-
-(defvar *doi-utils-waiting* t
-  "stores waiting state for url retrieval.")
-
-(defvar *doi-utils-redirect* nil
-  "stores redirect url from a callback function")
-
-(defun doi-utils-redirect-callback (&optional status)
-  "callback for url-retrieve to set the redirect"
-  (when (plist-get status :error)
-    (signal (car (plist-get status :error)) (cdr(plist-get status :error))))
-  (when (plist-get status :redirect) ;  is nil if there none
-    (message "redirects = %s" (plist-get status :redirect))
-    (message "*doi-utils-redirect* set to %s"
-	     (setq *doi-utils-redirect* (plist-get status :redirect))))
-  ;; we have done our job, so we are not waiting any more.
-  (setq *doi-utils-waiting* nil))
-
-(defun doi-utils-get-redirect (doi)
-  "get redirect url from dx.doi.org/doi"
-  ;; we are going to wait until the url-retrieve is done
-  (setq *doi-utils-waiting* t)
-  ;; start with no redirect. it will be set in the callback.
-  (setq *doi-utils-redirect* nil) 
-  (url-retrieve 
-   (format "http://dx.doi.org/%s" doi)
-   'doi-utils-redirect-callback)
-  ; I suspect we need to wait here for the asynchronous process to
-  ; finish. we loop and sleep until the callback says it is done via
-  ; `*doi-utils-waiting*'. this works as far as i can tell. Before I
-  ; had to run this a few times to get it to work, which i suspect
-  ; just gave the first one enough time to finish.
-  (while *doi-utils-waiting* (sleep-for 0.1)))
-
-(defvar doi-utils-pdf-url-functions nil
-  "list of functions that return a url to a pdf from a redirect url. Each function takes one argument, the redirect url. The function must return a pdf-url, or nil.")
-
-(defun aps-pdf-url (*doi-utils-redirect*)
-  (when (string-match "^http://journals.aps.org" *doi-utils-redirect*)
-    (replace-regexp-in-string "/abstract/" "/pdf/" *doi-utils-redirect*)))
-
-(defun science-pdf-url (*doi-utils-redirect*)
-  (when (string-match "^http://www.sciencemag.org" *doi-utils-redirect*)
-    (concat *doi-utils-redirect* ".full.pdf")))
-
-(defun nature-pdf-url (*doi-utils-redirect*)
-  (when (string-match "^http://www.nature.com" *doi-utils-redirect*)
-    (let ((result *doi-utils-redirect*))
-      (setq result (replace-regexp-in-string "/full/" "/pdf/" result))
-      (replace-regexp-in-string "\.html$" "\.pdf" result))))
-
-(defun doi-utils-get-wiley-pdf-url (redirect-url)
-  "wileyscience direct hides the pdf url in html. we get it out here"
-  (setq *doi-utils-waiting* t)
-  (url-retrieve redirect-url
-		(lambda (status)
-		  (beginning-of-buffer)
-		  (re-search-forward "<iframe id=\"pdfDocument\" src=\"\\([^\"]*\\)\"" nil)
-		  (setq *doi-utils-pdf-url* (match-string 1)
-			*doi-utils-waiting* nil)))
-  (while *doi-utils-waiting* (sleep-for 0.1))
-  *doi-utils-pdf-url*)
-
-(defun wiley-pdf-url (*doi-utils-redirect*)
-  (when (string-match "^http://onlinelibrary.wiley.com" *doi-utils-redirect*)
-   (doi-utils-get-wiley-pdf-url (replace-regexp-in-string "/abstract" "/pdf" *doi-utils-redirect*))
-   *doi-utils-pdf-url*))
-
-(defun springer-pdf-url (*doi-utils-redirect*)
-  (when (string-match "^http://link.springer.com" *doi-utils-redirect*)
-    (replace-regexp-in-string "/article/" "/content/pdf/" (concat *doi-utils-redirect* ".pdf"))))
-
-(defun acs-pdf-url (*doi-utils-redirect*)
-  (when (string-match "^http://pubs.acs.org" *doi-utils-redirect*)
-    (replace-regexp-in-string "/abs/" "/pdf/" *doi-utils-redirect*)))
-
-(defun iop-pdf-url (*doi-utils-redirect*)
-  (when (string-match "^http://iopscience.iop.org" *doi-utils-redirect*)
-    (let ((tail (replace-regexp-in-string "^http://iopscience.iop.org" "" *doi-utils-redirect*)))
-      (concat "http://iopscience.iop.org" tail "/pdf" (replace-regexp-in-string "/" "_" tail) ".pdf"))))
-
-(defun jstor-pdf-url (*doi-utils-redirect*)
-  (when (string-match "^http://www.jstor.org" *doi-utils-redirect*)
-    (concat (replace-regexp-in-string "/stable/" "/stable/pdfplus/" *doi-utils-redirect*) ".pdf")))
-
-(defun aip-pdf-url (*doi-utils-redirect*)
-  (when (string-match "^http://scitation.aip.org" *doi-utils-redirect*)
-    ;; get stuff after content
-    (let (p1 p2 s p3)
-      (setq p2 (replace-regexp-in-string "^http://scitation.aip.org/" "" *doi-utils-redirect*))
-      (setq s (split-string p2 "/"))
-      (setq p1 (mapconcat 'identity (-remove-at-indices '(0 6) s) "/"))
-      (setq p3 (concat "/" (nth 0 s) (nth 1 s) "/" (nth 2 s) "/" (nth 3 s)))
-      (format "http://scitation.aip.org/deliver/fulltext/%s.pdf?itemId=/%s&mimeType=pdf&containerItemId=%s"
-	      p1 p2 p3))))
-
-(defun tandfonline-pdf-url (*doi-utils-redirect*)
-  (when (string-match "^http://www.tandfonline.com" *doi-utils-redirect*)
-    (replace-regexp-in-string "/abs/\\|/full/" "/pdf/" *doi-utils-redirect*)))
-
-(defun ecs-pdf-url (*doi-utils-redirect*)
-  (when (string-match "^http://jes.ecsdl.org" *doi-utils-redirect*)
-    (replace-regexp-in-string "\.abstract$" ".full.pdf" *doi-utils-redirect*)))
-
-(defun ecst-pdf-url (*doi-utils-redirect*)
-  (when (string-match "^http://ecst.ecsdl.org" *doi-utils-redirect*)
-    (concat *doi-utils-redirect* ".full.pdf")))
-
-(defun rsc-pdf-url (*doi-utils-redirect*)
-  (when (string-match "^http://pubs.rsc.org" *doi-utils-redirect*)
-    (let ((url (downcase *doi-utils-redirect*)))
-      (setq url (replace-regexp-in-string "articlelanding" "articlepdf" url))
-      url)))
-
-(defvar *doi-utils-pdf-url* nil
-  "stores url to pdf download from a callback function")
-
-(defun doi-utils-get-science-direct-pdf-url (redirect-url)
-  "science direct hides the pdf url in html. we get it out here"
-  (setq *doi-utils-waiting* t)
-  (url-retrieve redirect-url
-		(lambda (status)
-		  (beginning-of-buffer)
-		  (re-search-forward "pdfurl=\"\\([^\"]*\\)\"" nil t)
-		  (setq *doi-utils-pdf-url* (match-string 1)
-			*doi-utils-waiting* nil)))
-  (while *doi-utils-waiting* (sleep-for 0.1))
-  *doi-utils-pdf-url*)
-
-
-(defun science-direct-pdf-url (*doi-utils-redirect*)
-  (when (string-match "^http://www.sciencedirect.com" *doi-utils-redirect*)
-    (doi-utils-get-science-direct-pdf-url *doi-utils-redirect*)
-    *doi-utils-pdf-url*))
-
-;; sometimes I get
-;; http://linkinghub.elsevier.com/retrieve/pii/S0927025609004558
-;; which actually redirect to
-;; http://www.sciencedirect.com/science/article/pii/S0927025609004558
-(defun linkinghub-elsevier-pdf-url (*doi-utils-redirect*)
-  (when (string-match "^http://linkinghub.elsevier.com/retrieve" *doi-utils-redirect*)
-    (let ((second-redirect (replace-regexp-in-string
-			    "http://linkinghub.elsevier.com/retrieve"
-			    "http://www.sciencedirect.com/science/article"
-			    *doi-utils-redirect*)))
-      (message "getting pdf url from %s" second-redirect)
-      ;(doi-utils-get-science-direct-pdf-url second-redirect)
-      *doi-utils-pdf-url*)))
-
-(defun pnas-pdf-url (*doi-utils-redirect*)
-  (when (string-match "^http://www.pnas.org" *doi-utils-redirect*)
-    (concat *doi-utils-redirect* ".full.pdf?with-ds=yes")))
-
-(setq doi-utils-pdf-url-functions
-      (list
-       'aps-pdf-url
-       'science-pdf-url
-       'nature-pdf-url
-       'wiley-pdf-url	     
-       'springer-pdf-url
-       'acs-pdf-url
-       'iop-pdf-url
-       'jstor-pdf-url
-       'aip-pdf-url
-       'science-direct-pdf-url
-       'linkinghub-elsevier-pdf-url
-       'tandfonline-pdf-url
-       'ecs-pdf-url
-       'ecst-pdf-url
-       'rsc-pdf-url
-       'pnas-pdf-url))
-
-(defun doi-utils-get-pdf-url (doi)
-  "returns a url to a pdf for the doi if one can be
-calculated. Loops through the functions in `doi-utils-pdf-url-functions'
-until one is found"
-  (doi-utils-get-redirect doi)
-  
-  (unless *doi-utils-redirect*
-    (error "No redirect found for %s" doi))
-  (message "applying functions")
-  (catch 'pdf-url
-    (dolist (func doi-utils-pdf-url-functions)
-     (message "calling %s" func)
-      (let ((this-pdf-url (funcall func *doi-utils-redirect*)))
-(message "t: %s" this-pdf-url)
-	(when this-pdf-url
-          (message "found pdf url: %s" this-pdf-url)
-	  (throw 'pdf-url this-pdf-url))))))
-
-(defun doi-utils-get-bibtex-entry-pdf ()
-  "download pdf for entry at point if the pdf does not already
-exist locally. The entry must have a doi. The pdf will be saved
-to `org-ref-pdf-directory', by the name %s.pdf where %s is the
-bibtex label. Files will not be overwritten. The pdf will be
-checked to make sure it is a pdf, and not some html failure
-page. you must have permission to access the pdf. We open the pdf
-at the end."
-  (interactive)
-  (save-excursion
-    (bibtex-beginning-of-entry) 
-    (let (;; get doi, removing http://dx.doi.org/ if it is there.
-	  (doi (replace-regexp-in-string
-		"http://dx.doi.org/" ""
-		(bibtex-autokey-get-field "doi")))	       
-	  (key)
-	  (pdf-url)
-	  (pdf-file)
-	  (content))
-      ;; get the key and build pdf filename.
-      (re-search-forward bibtex-entry-maybe-empty-head)
-      (setq key (match-string bibtex-key-in-head))
-      (setq pdf-file (concat org-ref-pdf-directory key ".pdf"))
-
-      ;; now get file if needed.
-      (when (and doi (not (file-exists-p pdf-file)))
-	(setq pdf-url (doi-utils-get-pdf-url doi))
-	(if pdf-url
-	    (progn
-	      (url-copy-file pdf-url pdf-file)
-	      ;; now check if we got a pdf
-	      (with-temp-buffer
-		(insert-file-contents pdf-file)
-		;; PDFS start with %PDF-1.x as the first few characters.
-		(if (not (string= (buffer-substring 1 6) "%PDF-"))
-		    (progn
-		      (message "%s" (buffer-string))
-		      (delete-file pdf-file))
-		  (message "%s saved" pdf-file)))
-	
-	      (when (file-exists-p pdf-file)
-		(org-open-file pdf-file)))
-	  (message "No pdf-url found for %s at %s" doi *doi-utils-redirect* ))
-	  pdf-file))))
-
-(defun doi-utils-get-json-metadata (doi)
-  (let ((url-request-method "GET") 
-       (url-mime-accept-string "application/citeproc+json")
-       (json-object-type 'plist))
-    (with-current-buffer
-	(url-retrieve-synchronously
-	 (concat "http://dx.doi.org/" doi))
-      (json-read-from-string (buffer-substring url-http-end-of-headers (point-max))))))       
-
-(defun doi-utils-expand-template (s)
-  "expand a template containing %{} with the eval of its contents"
-  (replace-regexp-in-string "%{\\([^}]+\\)}"
-                            (lambda (arg)
-                              (let ((sexp (substring arg 2 -1)))
-                                (format "%s" (eval (read sexp))))) s))
-
-(defun doi-utils-doi-to-bibtex-string (doi)
-  "return a bibtex entry as a string for the doi. Only articles are currently supported"
-  (let (type
-	results
-	author
-	title
-	journal
-	year
-	volume
-	number
-	pages
-	month
-	url
-	json-data)
-    (setq results (doi-utils-get-json-metadata doi)
-	  json-data (format "%s" results)
-	  type (plist-get results :type)
-	  author (mapconcat (lambda (x) (concat (plist-get x :given) " " (plist-get x :family)))
-			    (plist-get results :author) " and ")
-	  title (plist-get results :title)
-	  journal (plist-get results :container-title)
-	  volume (plist-get results :volume)
-	  issue (plist-get results :issue)
-	  year (elt (elt (plist-get (plist-get results :issued) :date-parts) 0) 0)
-	  pages (plist-get results :page)
-	  doi (plist-get results :DOI)
-	  url (plist-get results :URL))
-    (cond
-     ((string= type "journal-article")
-      (doi-utils-expand-template "@article{,
-  author = 	 {%{author}},
-  title = 	 {%{title}},
-  journal = 	 {%{journal}},
-  year = 	 {%{year}},
-  volume = 	 {%{volume}},
-  number = 	 {%{issue}},
-  pages = 	 {%{pages}},
-  doi =          {%{doi}},
-  url =          {%{url}},
-}"))
-    (t (message-box "%s not supported yet." type)))))
-
-(defun doi-utils-insert-bibtex-entry-from-doi (doi)
-  "insert bibtex entry from a doi. Also cleans entry using
-org-ref, and tries to download the corresponding pdf."
-  (interactive "sDOI: ")
-  (insert (doi-utils-doi-to-bibtex-string doi))
-  (backward-char)
-  (if (bibtex-key-in-head nil)
-       (org-ref-clean-bibtex-entry t)
-     (org-ref-clean-bibtex-entry))
-   ;; try to get pdf
-   (doi-utils-get-bibtex-entry-pdf)
-   (save-selected-window
-     (org-ref-open-bibtex-notes)))
-
-(defun doi-utils-add-bibtex-entry-from-doi (doi)
-  "add entry to end of first entry in `org-ref-default-bibliography'."
-  (interactive "sDOI: ")
-  (find-file (car org-ref-default-bibliography))
-  (end-of-buffer)
-  (insert "\n\n")
-  (doi-utils-insert-bibtex-entry-from-doi doi))
-
-(defun doi-utils-add-bibtex-entry-from-region (start end)
-  "add entry assuming region is a doi to end of first entry in `org-ref-default-bibliography'."
-  (interactive "r")
-  (let ((doi (buffer-substring start end)))
-    (find-file (car org-ref-default-bibliography))
-    (end-of-buffer)
-    (insert "\n")
-    (doi-utils-insert-bibtex-entry-from-doi doi)))
-
-(defun bibtex-set-field (field value)
-  "set field to value in bibtex file. create field if it does not exist"
-  (interactive "sfield: \nsvalue: ")
-  (bibtex-beginning-of-entry)
-  (let ((found))
-    (if (setq found (bibtex-search-forward-field field t))
-	;; we found a field
-	(progn
-	  (goto-char (car (cdr found)))
-	  (when value
-	    (bibtex-kill-field)
-	    (bibtex-make-field field)
-	    (backward-char)
-	    (insert value)))
-      ;; make a new field
-      (message "new field being made")
-      (bibtex-beginning-of-entry)
-      (forward-line) (beginning-of-line)
-      (bibtex-next-field nil)
-      (forward-char)
-      (bibtex-make-field field)
-      (backward-char)
-      (insert value))))
-
-(defun plist-get-keys (plist)
-   "return keys in a plist"
-  (loop
-   for key in results by #'cddr collect key))
-
-(defun doi-utils-update-bibtex-entry-from-doi (doi)
-  "update fields in a bibtex entry from the doi. Every field will be updated, so previous changes will be lost."
-  (interactive (list
-		(or (replace-regexp-in-string "http://dx.doi.org/" "" (bibtex-autokey-get-field "doi"))
-		    (read-string "DOI: "))))
-  (let* ((results (doi-utils-get-json-metadata doi))
-	 (type (plist-get results :type))
-	 (author (mapconcat
-		  (lambda (x) (concat (plist-get x :given)
-				    " " (plist-get x :family)))
-		  (plist-get results :author) " and "))
-	 (title (plist-get results :title))
-	 (journal (plist-get results :container-title))
-	 (year (format "%s"
-		       (elt
-			(elt
-			 (plist-get
-			  (plist-get results :issued) :date-parts) 0) 0)))	
-	(volume (plist-get results :volume))
-	(number (or (plist-get results :issue) ""))
-	(pages (or (plist-get results :page) ""))
-	(url (or (plist-get results :URL) ""))
-	(doi (plist-get results :DOI)))
-    
-    ;; map the json fields to bibtex fields. The code each field is mapped to is evaluated.
-    (setq mapping '((:author . (bibtex-set-field "author" author))
-		    (:title . (bibtex-set-field "title" title))
-		    (:container-title . (bibtex-set-field "journal" journal))
-		    (:issued . (bibtex-set-field "year" year))
-		    (:volume . (bibtex-set-field "volume" volume))
-		    (:issue . (bibtex-set-field "number" number))
-		    (:page . (bibtex-set-field "pages" pages))
-		    (:DOI . (bibtex-set-field "doi" doi))
-		    (:URL . (bibtex-set-field "url" url))))
-
-    ;; now we have code to run for each entry. we map over them and evaluate the code
-    (mapcar
-     (lambda (key)
-       (eval (cdr (assoc key mapping))))
-     (plist-get-keys results)))
-  
-  ; reclean entry, but keep key if it exists.
-  (if (bibtex-key-in-head)
-      (org-ref-clean-bibtex-entry t)
-    (org-ref-clean-bibtex-entry)))
-
-(provide 'doi-utils)
diff --git a/org-show.el b/org-show.el
deleted file mode 100644
index a1220d7..0000000
--- a/org-show.el
+++ /dev/null
@@ -1,357 +0,0 @@
-
-;;; org-show.el --- Summary
-;; Copyright(C) 2014 John Kitchin
-
-;; Author: John Kitchin <jkitchin@andrew.cmu.edu>
-;; Contributions from Sacha Chua.
-;; This file is not currently part of GNU Emacs.
-
-;; This program is free software; you can redistribute it and/or
-;; modify it under the terms of the GNU General Public License as
-;; published by the Free Software Foundation; either version 2, or (at
-;; your option) any later version.
-
-;; This program is distributed in the hope that it will be useful, but
-;; WITHOUT ANY WARRANTY; without even the implied warranty of
-;; MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
-;; General Public License for more details.
-
-;; You should have received a copy of the GNU General Public License
-;; along with this program ; see the file COPYING.  If not, write to
-;; the Free Software Foundation, Inc., 59 Temple Place - Suite 330,
-;; Boston, MA 02111-1307, USA.
-
-;;; Commentary:
-;; A simple mode for presenting org-files as slide-shows
-
-(defvar org-show-presentation-file nil "File containing the presentation.")
-(defvar org-show-slide-tag "slide" "Tag that marks slides.")
-(defvar org-show-slide-tag-regexp (concat ":" (regexp-quote org-show-slide-tag) ":"))
-(defvar org-show-latex-scale 4.0 "scale for latex preview")
-
-(defvar org-show-original-latex-scale
-  (plist-get org-format-latex-options :scale)
-  "Original scale for latex preview, so we can reset it.")
-
-(defvar org-show-text-scale 4 "scale for text in presentation")
-(defvar org-show-current-slide-number 1 "holds current slide number")
-
-(defvar org-show-mogrify-p (executable-find "mogrify"))
-
-(defvar org-show-tags-column -60 "column position to move tags to in slide mode")
-(defvar org-show-original-tags-column org-tags-column "Save value so we can change back to it")
-
-(when org-show-mogrify-p (require 'eimp))
-
-(require 'easymenu)
-
-(defvar org-show-mode-map
-  (let ((map (make-sparse-keymap)))
-    (define-key map [next] 'org-show-next-slide)
-    (define-key map [prior] 'org-show-previous-slide)
-    
-    (define-key map [f5] 'org-show-start-slideshow)
-    (define-key map [f6] 'org-show-execute-slide)
-    (define-key map (kbd "C--") 'org-show-decrease-text-size)
-    (define-key map (kbd "C-=") 'org-show-increase-text-size)
-    (define-key map (kbd "\e\eg") 'org-show-goto-slide)
-    (define-key map (kbd "\e\et") 'org-show-toc)
-    (define-key map (kbd "\e\eq") 'org-show-stop-slideshow)
-    map)
-  "Keymap for org-show-mode.")
-
-(easy-menu-define my-menu org-show-mode-map "My own menu"
-  '("org-show"
-    ["Start slide show" org-show-start-slideshow t]
-    ["Next slide" org-show-next-slide t]
-    ["Previous slide" org-show-previous-slide t]
-    ["Open this slide" org-show-open-slide t]
-    ["Goto slide" org-show-goto-slide t]
-    ["Table of contents" org-show-toc t]
-    ["Stop slide show"  org-show-stop-slideshow t]
-))
-
-
-(define-minor-mode org-show-mode
-  "Minor mode for org-show
-
-\\{org-show-mode-map}"
-  :lighter " org-show"
-  :global t
-  :keymap org-show-mode-map)
-
-(defvar org-show-temp-images '() "list of temporary images")
-
-(defun org-show-execute-slide ()
-  "Process slide at point.
-  If it contains an Emacs Lisp source block, evaluate it.
-  If it contains an image, view it in a split buffer
-  Else, focus on that buffer.
-  Hide all drawers."
-  (interactive)
-  (setq org-show-presentation-file (expand-file-name (buffer-name)))
-  (delete-other-windows)  
-
-  ;; make sure nothing is folded. This seems to be necessary to
-  ;; prevent an error on narrowing then trying to make latex fragments
-  ;; I think.
-  (org-cycle '(64))
-
-  (org-narrow-to-subtree)
-  (visual-line-mode 1)
-  (let ((heading-text (nth 4 (org-heading-components)))
-        (org-format-latex-options (plist-put org-format-latex-options :scale org-show-latex-scale)))
-
-    (set-frame-name (format "%-180s%15s%s" heading-text "slide " (cdr (assoc heading-text org-show-slide-titles))))
-
-    ;; preview equations in the current subtree
-    (org-preview-latex-fragment '(4))
-    (message "") ; clear minibuffer
-    (cond
-
-     ;; view images if there is one. WE only do this this for the first one.
-     ((and (goto-char (point-min))
-           (re-search-forward "\\[\\[\\(.*\\.\\(jpg\\|gif\\|png\\)\\)" nil t))
-      
-      (unless (file-exists-p "org-show-images")
-	(make-directory "org-show-images"))
-      
-      (let* ((png-file (match-string 1))
-	     (temp-png (expand-file-name (concat "org-show-images/" (secure-hash 'sha1
-					    (with-temp-buffer
-					      (insert-file-contents png-file)
-					      (buffer-string))) ".png"))))
-
-        (add-to-list 'org-show-temp-images temp-png)
-	(unless (file-exists-p temp-png)
-	  (copy-file png-file temp-png t))
-      
-	(split-window-right)      
-      
-	(other-window 1)
-	(find-file temp-png)
-        (when org-show-mogrify-p
-          (eimp-fit-image-width-to-window nil)))
-                  
-      (other-window 1) ; back to slide
-      (goto-char (point-min))
-      (text-scale-set org-show-text-scale)
-      (org-display-inline-images)
-      (org-cycle-hide-drawers t)
-      (org-show-subtree))
-
-     ;; find and execute source code blocks.
-     ;; you can either have images, or code. Not both.
-     ;; Only code blocks of type emacs-lisp-slide are used.
-     ((and (goto-char (point-min))
-           (re-search-forward "#\\+begin_src emacs-lisp-slide" nil t))
-      (let ((info (org-babel-get-src-block-info)))
-        (unwind-protect
-            (eval (read (concat "(progn " (nth 1 info) ")"))))))
-
-     ;; plain text slides
-     (t
-      (switch-to-buffer (current-buffer))
-      (text-scale-set org-show-text-scale)
-      (org-show-subtree)
-      (org-cycle-hide-drawers t)
-      (org-display-inline-images)
-      (delete-other-windows)))))
-
-(defun org-show-next-slide ()
-  "Goto next slide in presentation"
-  (interactive)
-  (find-file org-show-presentation-file)
-  (widen)
-  (if (<= (+ org-show-current-slide-number 1) (length org-show-slide-titles))
-      (progn
-	(setq org-show-current-slide-number (+ org-show-current-slide-number 1))
-	(org-show-goto-slide org-show-current-slide-number))
-    (org-show-goto-slide org-show-current-slide-number)
-    (message "This is the end. My only friend the end.  Jim Morrison.")))
-
-(defun org-show-previous-slide ()
-  "Goto previous slide in the list"
-  (interactive)
-  (find-file org-show-presentation-file)
-  (widen)
-  (if (> (- org-show-current-slide-number 1) 0)
-      (progn
-	(setq org-show-current-slide-number (- org-show-current-slide-number 1))
-	(org-show-goto-slide org-show-current-slide-number))
-    (org-show-goto-slide org-show-current-slide-number)
-    (message "Once upon a time...")))
-
-(defun org-show-open-slide ()
- "Start show at this slide"
- (setq org-show-presentation-file (expand-file-name (buffer-name))) 
- (org-show-initialize)
- (let ((n (cdr (assoc (nth 4 (org-heading-components)) org-show-slide-titles))))
-   (setq org-show-current-slide-number n)
-   (org-show-goto-slide n)))
-
-(defvar org-show-slide-list '() "List of slide numbers and markers to each slide")
-(defvar org-show-slide-titles '() "List of titles and slide numbers for each slide")
-
-(defun org-show-initialize ()
-  ;; make slide lists for future navigation. rerun this if you change slide order
-  (setq  org-show-slide-titles '()
-         org-show-temp-images '()
-         org-show-slide-list '())
-     
-  (let ((n 0))
-    (org-map-entries
-     (lambda ()
-       (when (string-match-p ":slide:" (or (nth 5 (org-heading-components)) ""))
-	 (setq n (+ n 1))
-         
-	 (add-to-list 'org-show-slide-titles 
-		      (cons (nth 4 (org-heading-components)) n) t)
-
-	 (add-to-list 'org-show-slide-list 
-		      (cons n (set-marker (make-marker) (point))) t))))))
-
-(defun org-show-start-slideshow ()
-  "Start the slide show, at the beginning"
-  (interactive)
-    
-  (setq org-show-presentation-file (expand-file-name (buffer-name)))
-  (beginning-of-buffer)
-  (setq org-tags-column org-show-tags-column)
-  (org-set-tags-command '(4) t)
-
-  (org-show-initialize)
-  ;; hide slide tags
-  (save-excursion
-    (while (re-search-forward ":slide:" nil t)
-      (overlay-put
-       (make-overlay (match-beginning 0)(match-end 0))
-       'invisible 'slide)))
-  (add-to-invisibility-spec 'slide)
-  (beginning-of-buffer)
-  (delete-other-windows)
-  (org-show-mode 1)
-  (setq org-show-current-slide-number 1)
-  (org-show-goto-slide 1))
-
-(defun org-show-stop-slideshow ()
-  (interactive)
-  ;; make slide tag visible again
-  (remove-from-invisibility-spec 'slide)
-
-  ;; reset latex scale
-  (plist-put org-format-latex-options :scale org-show-original-latex-scale)
-
-  ;; clean up temp images
-  (mapcar (lambda (x)
-	    (let ((bname (file-name-nondirectory x)))
-	      (when (get-buffer bname)
-                (set-buffer bname) 
-                (save-buffer)
-		(kill-buffer bname)))
-
-	    (when (file-exists-p x)
-	      (delete-file x)))
-	  org-show-temp-images)
-  (setq org-show-temp-images '())
-
-  ;; ;; clean up miscellaneous buffers
-  (when (get-buffer "*Animation*") (kill-buffer "*Animation*"))
-
-  (when org-show-presentation-file (find-file org-show-presentation-file))
-  (widen)
-  (text-scale-set 0)
-  (delete-other-windows)
-  (setq org-show-presentation-file nil)
-  (setq org-show-current-slide-number 1)
-  (set-frame-name (if (buffer-file-name)
-                   (abbreviate-file-name (buffer-file-name))))
-  (setq org-tags-column org-show-original-tags-column)
-  (org-set-tags-command '(4) t)
-
-  (org-show-mode -1))
-
-(defalias 'stop 'org-show-stop-slideshow)
-
-(defun org-show-goto-slide (n)
- "Goto slide N"
- (interactive "nSlide number: ")
- (message "Going to slide %s" n)
- (find-file org-show-presentation-file)
- (setq org-show-current-slide-number n)
- (widen)
- (goto-char (cdr (assoc n org-show-slide-list)))
- (org-show-execute-slide))
-
-(defun org-show-toc ()
-  (interactive)
-  (let ((links) (c-b (buffer-name)) (n))
-    (save-excursion
-      (widen)
-      (mapcar
-       (lambda (x)
-	 (setq n (car x))
-	 (goto-char (cdr x))
-	 (add-to-list
-	  'links
-	  (format " [[elisp:(progn (switch-to-buffer \"%s\")(goto-char %s)(org-show-execute-slide))][%2s %s]]\n\n"
-		  (marker-buffer (cdr x))
-		  (marker-position (cdr x))
-		  (car x)
-		  (nth 4 (org-heading-components))) t))
-	      org-show-slide-list))
-    
-    (switch-to-buffer "*List of Slides*")
-    (org-mode)
-    (erase-buffer)
-    
-    (insert (mapconcat 'identity links ""))
-  
-    ;(setq buffer-read-only t)
-    (use-local-map (copy-keymap org-mode-map))
-    (local-set-key "q" #'(lambda () (interactive) (kill-buffer)))))
-
-(require 'animate)
-
-(defun org-show-animate (strings)
-  "Animate STRINGS in an *Animation* buffer"
-  (switch-to-buffer (get-buffer-create
-                     (or animation-buffer-name
-                         "*Animation*")))
-  (erase-buffer)
-  (text-scale-set 6)
-  (let* ((vpos (/ (- 20
-		     1 ;; For the mode-line
-		     (1- (length strings)) 
-		     (length strings))
-		  2))
-	 (width 43)
-	 hpos)
-    (while strings
-      (setq hpos (/ (- width (length (car strings))) 2))
-      (when (> 0 hpos) (setq hpos 0))
-      (when (> 0 vpos) (setq vpos 0))
-      (animate-string (car strings) vpos hpos)
-      (setq vpos (1+ vpos))
-      (setq strings (cdr strings)))))
-
-(defun org-show-increase-text-size (&optional arg)
-  "Increase text size. Bound to \\[org-show-increase-text-size].
-
-With prefix ARG, set `org-show-text-scale' so subsquent slides are the same text size."
-  (interactive "P")
-  (text-scale-increase 1.5)
-  (when arg
-    (setq org-show-text-scale (* org-show-text-scale 1.5))))
-
-(defun org-show-decrease-text-size (&optional arg)
-  "Increase text size. Bound to \\[org-show-decrease-text-size].
-
-With prefix ARG, set `org-show-text-scale' so subsquent slides are the same text size."
-  (interactive "P")
-  (text-scale-decrease 1.5)
-  (when arg
-    (setq org-show-text-scale (/ org-show-text-scale 1.5)))
-)
-
-(provide 'org-show)
-- 
2.39.2