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diff --git a/.emacs.d/elpa/org-20171120/ob-comint.el b/.emacs.d/elpa/org-20171120/ob-comint.el
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+;;; ob-comint.el --- Babel Functions for Interaction with Comint Buffers -*- lexical-binding: t; -*-
+
+;; Copyright (C) 2009-2017 Free Software Foundation, Inc.
+
+;; Author: Eric Schulte
+;; Keywords: literate programming, reproducible research, comint
+;; Homepage: http://orgmode.org
+
+;; This file is part of GNU Emacs.
+
+;; GNU Emacs 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 3 of the License, or
+;; (at your option) any later version.
+
+;; GNU Emacs 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 GNU Emacs.  If not, see <https://www.gnu.org/licenses/>.
+
+;;; Commentary:
+
+;; These functions build on comint to ease the sending and receiving
+;; of commands and results from comint buffers.
+
+;; Note that the buffers in this file are analogous to sessions in
+;; org-babel at large.
+
+;;; Code:
+(require 'ob-core)
+(require 'org-compat)
+(require 'comint)
+
+(defun org-babel-comint-buffer-livep (buffer)
+  "Check if BUFFER is a comint buffer with a live process."
+  (let ((buffer (if buffer (get-buffer buffer))))
+    (and buffer (buffer-live-p buffer) (get-buffer-process buffer) buffer)))
+
+(defmacro org-babel-comint-in-buffer (buffer &rest body)
+  "Check BUFFER and execute BODY.
+BUFFER is checked with `org-babel-comint-buffer-livep'.  BODY is
+executed inside the protection of `save-excursion' and
+`save-match-data'."
+  (declare (indent 1))
+  `(progn
+     (unless (org-babel-comint-buffer-livep ,buffer)
+       (error "Buffer %s does not exist or has no process" ,buffer))
+     (save-match-data
+       (with-current-buffer ,buffer
+	 (save-excursion
+	   (let ((comint-input-filter (lambda (_input) nil)))
+	     ,@body))))))
+(def-edebug-spec org-babel-comint-in-buffer (form body))
+
+(defmacro org-babel-comint-with-output (meta &rest body)
+  "Evaluate BODY in BUFFER and return process output.
+Will wait until EOE-INDICATOR appears in the output, then return
+all process output.  If REMOVE-ECHO and FULL-BODY are present and
+non-nil, then strip echo'd body from the returned output.  META
+should be a list containing the following where the last two
+elements are optional.
+
+ (BUFFER EOE-INDICATOR REMOVE-ECHO FULL-BODY)
+
+This macro ensures that the filter is removed in case of an error
+or user `keyboard-quit' during execution of body."
+  (declare (indent 1))
+  (let ((buffer (nth 0 meta))
+	(eoe-indicator (nth 1 meta))
+	(remove-echo (nth 2 meta))
+	(full-body (nth 3 meta)))
+    `(org-babel-comint-in-buffer ,buffer
+       (let* ((string-buffer "")
+	      (comint-output-filter-functions
+	       (cons (lambda (text) (setq string-buffer (concat string-buffer text)))
+		     comint-output-filter-functions))
+	      dangling-text)
+	 ;; got located, and save dangling text
+	 (goto-char (process-mark (get-buffer-process (current-buffer))))
+	 (let ((start (point))
+	       (end (point-max)))
+	   (setq dangling-text (buffer-substring start end))
+	   (delete-region start end))
+	 ;; pass FULL-BODY to process
+	 ,@body
+	 ;; wait for end-of-evaluation indicator
+	 (while (progn
+		  (goto-char comint-last-input-end)
+		  (not (save-excursion
+			 (and (re-search-forward
+			       (regexp-quote ,eoe-indicator) nil t)
+			      (re-search-forward
+			       comint-prompt-regexp nil t)))))
+	   (accept-process-output (get-buffer-process (current-buffer)))
+	   ;; thought the following this would allow async
+	   ;; background running, but I was wrong...
+	   ;; (run-with-timer .5 .5 'accept-process-output
+	   ;; 		 (get-buffer-process (current-buffer)))
+	   )
+	 ;; replace cut dangling text
+	 (goto-char (process-mark (get-buffer-process (current-buffer))))
+	 (insert dangling-text)
+
+	 ;; remove echo'd FULL-BODY from input
+	 (when (and ,remove-echo ,full-body
+		    (string-match
+		     (replace-regexp-in-string
+		      "\n" "[\r\n]+" (regexp-quote (or ,full-body "")))
+		     string-buffer))
+	   (setq string-buffer (substring string-buffer (match-end 0))))
+	 (split-string string-buffer comint-prompt-regexp)))))
+(def-edebug-spec org-babel-comint-with-output (sexp body))
+
+(defun org-babel-comint-input-command (buffer cmd)
+  "Pass CMD to BUFFER.
+The input will not be echoed."
+  (org-babel-comint-in-buffer buffer
+    (goto-char (process-mark (get-buffer-process buffer)))
+    (insert cmd)
+    (comint-send-input)
+    (org-babel-comint-wait-for-output buffer)))
+
+(defun org-babel-comint-wait-for-output (buffer)
+  "Wait until output arrives from BUFFER.
+Note: this is only safe when waiting for the result of a single
+statement (not large blocks of code)."
+  (org-babel-comint-in-buffer buffer
+    (while (progn
+             (goto-char comint-last-input-end)
+             (not (and (re-search-forward comint-prompt-regexp nil t)
+                       (goto-char (match-beginning 0))
+                       (string= (face-name (face-at-point))
+                                "comint-highlight-prompt"))))
+      (accept-process-output (get-buffer-process buffer)))))
+
+(defun org-babel-comint-eval-invisibly-and-wait-for-file
+  (buffer file string &optional period)
+  "Evaluate STRING in BUFFER invisibly.
+Don't return until FILE exists.  Code in STRING must ensure that
+FILE exists at end of evaluation."
+  (unless (org-babel-comint-buffer-livep buffer)
+    (error "Buffer %s does not exist or has no process" buffer))
+  (when (file-exists-p file) (delete-file file))
+  (process-send-string
+   (get-buffer-process buffer)
+   (if (= (aref string (1- (length string))) ?\n) string (concat string "\n")))
+  (while (not (file-exists-p file)) (sit-for (or period 0.25))))
+
+(provide 'ob-comint)
+
+
+
+;;; ob-comint.el ends here