lisp/ob.el

   1 ;;; ob.el --- working with code blocks in org-mode
   2
   3 ;; Copyright (C) 2009-2011  Free Software Foundation, Inc.
   4
   5 ;; Author: Eric Schulte
   6 ;;      Dan Davison
   7 ;; Keywords: literate programming, reproducible research
   8 ;; Homepage: http://orgmode.org
   9
  10 ;; This file is part of GNU Emacs.
  11
  12 ;; GNU Emacs is free software: you can redistribute it and/or modify
  13 ;; it under the terms of the GNU General Public License as published by
  14 ;; the Free Software Foundation, either version 3 of the License, or
  15 ;; (at your option) any later version.
  16
  17 ;; GNU Emacs is distributed in the hope that it will be useful,
  18 ;; but WITHOUT ANY WARRANTY; without even the implied warranty of
  19 ;; MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  20 ;; GNU General Public License for more details.
  21
  22 ;; You should have received a copy of the GNU General Public License
  23 ;; along with GNU Emacs.  If not, see <http://www.gnu.org/licenses/>.
  24
  25 ;;; Code:
  26 (eval-when-compile
  27   (require 'cl))
  28 (require 'ob-eval)
  29 (require 'org-macs)
  30
  31 (defvar org-babel-call-process-region-original)
  32 (defvar org-src-lang-modes)
  33 (defvar org-babel-library-of-babel)
  34 (declare-function show-all "outline" ())
  35 (declare-function tramp-compat-make-temp-file "tramp-compat"
  36                   (filename &optional dir-flag))
  37 (declare-function tramp-dissect-file-name "tramp" (name &optional nodefault))
  38 (declare-function tramp-file-name-user "tramp" (vec))
  39 (declare-function tramp-file-name-host "tramp" (vec))
  40 (declare-function with-parsed-tramp-file-name "tramp" (filename var &rest body))
  41 (declare-function org-icompleting-read "org" (&rest args))
  42 (declare-function org-edit-src-code "org-src"
  43                   (&optional context code edit-buffer-name quietp))
  44 (declare-function org-edit-src-exit "org-src"  (&optional context))
  45 (declare-function org-open-at-point "org" (&optional in-emacs reference-buffer))
  46 (declare-function org-save-outline-visibility "org" (use-markers &rest body))
  47 (declare-function org-outline-overlay-data "org" (&optional use-markers))
  48 (declare-function org-set-outline-overlay-data "org" (data))
  49 (declare-function org-narrow-to-subtree "org" ())
  50 (declare-function org-entry-get "org"
  51                   (pom property &optional inherit literal-nil))
  52 (declare-function org-make-options-regexp "org" (kwds &optional extra))
  53 (declare-function org-do-remove-indentation "org" (&optional n))
  54 (declare-function org-show-context "org" (&optional key))
  55 (declare-function org-at-table-p "org" (&optional table-type))
  56 (declare-function org-cycle "org" (&optional arg))
  57 (declare-function org-uniquify "org" (list))
  58 (declare-function org-current-level "org" ())
  59 (declare-function org-table-import "org-table" (file arg))
  60 (declare-function org-add-hook "org-compat"
  61                   (hook function &optional append local))
  62 (declare-function org-table-align "org-table" ())
  63 (declare-function org-table-end "org-table" (&optional table-type))
  64 (declare-function orgtbl-to-generic "org-table" (table params))
  65 (declare-function orgtbl-to-orgtbl "org-table" (table params))
  66 (declare-function org-babel-tangle-comment-links "ob-tangle" (&optional info))
  67 (declare-function org-babel-lob-get-info "ob-lob" nil)
  68 (declare-function org-babel-ref-split-args "ob-ref" (arg-string))
  69 (declare-function org-babel-ref-parse "ob-ref" (assignment))
  70 (declare-function org-babel-ref-resolve "ob-ref" (ref))
  71 (declare-function org-babel-ref-goto-headline-id "ob-ref" (id))
  72 (declare-function org-babel-ref-headline-body "ob-ref" ())
  73 (declare-function org-babel-lob-execute-maybe "ob-lob" ())
  74 (declare-function org-number-sequence "org-compat" (from &optional to inc))
  75 (declare-function org-at-item-p "org-list" ())
  76 (declare-function org-list-parse-list "org-list" (&optional delete))
  77 (declare-function org-list-to-generic "org-list" (LIST PARAMS))
  78 (declare-function org-list-struct "org-list" ())
  79 (declare-function org-list-prevs-alist "org-list" (struct))
  80 (declare-function org-list-get-list-end "org-list" (item struct prevs))
  81
  82 (defgroup org-babel nil
  83   "Code block evaluation and management in `org-mode' documents."
  84   :tag "Babel"
  85   :group 'org)
  86
  87 (defcustom org-confirm-babel-evaluate t
  88   "Confirm before evaluation.
  89 Require confirmation before interactively evaluating code
  90 blocks in Org-mode buffers.  The default value of this variable
  91 is t, meaning confirmation is required for any code block
  92 evaluation.  This variable can be set to nil to inhibit any
  93 future confirmation requests.  This variable can also be set to a
  94 function which takes two arguments the language of the code block
  95 and the body of the code block.  Such a function should then
  96 return a non-nil value if the user should be prompted for
  97 execution or nil if no prompt is required.
  98
  99 Warning: Disabling confirmation may result in accidental
 100 evaluation of potentially harmful code.  It may be advisable
 101 remove code block execution from C-c C-c as further protection
 102 against accidental code block evaluation.  The
 103 `org-babel-no-eval-on-ctrl-c-ctrl-c' variable can be used to
 104 remove code block execution from the C-c C-c keybinding."
 105     :group 'org-babel
 106     :type '(choice boolean function))
 107 ;; don't allow this variable to be changed through file settings
 108 (put 'org-confirm-babel-evaluate 'safe-local-variable (lambda (x) (eq x t)))
 109
 110 (defcustom org-babel-no-eval-on-ctrl-c-ctrl-c nil
 111   "Remove code block evaluation from the C-c C-c key binding."
 112   :group 'org-babel
 113   :type 'boolean)
 114
 115 (defvar org-babel-src-name-regexp
 116   "^[ \t]*#\\+\\(srcname\\|source\\|function\\):[ \t]*"
 117   "Regular expression used to match a source name line.")
 118
 119 (defvar org-babel-multi-line-header-regexp
 120   "^[ \t]*#\\+headers?:[ \t]*\\([^\n]*\\)$"
 121   "Regular expression used to match multi-line header arguments.")
 122
 123 (defvar org-babel-src-name-w-name-regexp
 124   (concat org-babel-src-name-regexp
 125           "\\("
 126           org-babel-multi-line-header-regexp
 127           "\\)*"
 128           "\\([^ ()\f\t\n\r\v]+\\)\\(\(\\(.*\\)\)\\|\\)")
 129   "Regular expression matching source name lines with a name.")
 130
 131 (defvar org-babel-src-block-regexp
 132   (concat
 133    ;; (1) indentation                 (2) lang
 134    "^\\([ \t]*\\)#\\+begin_src[ \t]+\\([^ \f\t\n\r\v]+\\)[ \t]*"
 135    ;; (3) switches
 136    "\\([^\":\n]*\"[^\"\n*]*\"[^\":\n]*\\|[^\":\n]*\\)"
 137    ;; (4) header arguments
 138    "\\([^\n]*\\)\n"
 139    ;; (5) body
 140    "\\([^\000]*?\n\\)?[ \t]*#\\+end_src")
 141   "Regexp used to identify code blocks.")
 142
 143 (defvar org-babel-inline-src-block-regexp
 144   (concat
 145    ;; (1) replacement target (2) lang
 146    "\\(?:^\\|[^-[:alnum:]]\\)\\(src_\\([^ \f\t\n\r\v]+\\)"
 147    ;; (3,4) (unused, headers)
 148    "\\(\\|\\[\\(.*?\\)\\]\\)"
 149    ;; (5) body
 150    "{\\([^\f\n\r\v]+?\\)}\\)")
 151   "Regexp used to identify inline src-blocks.")
 152
 153 (defun org-babel-get-header (params key &optional others)
 154   "Select only header argument of type KEY from a list.
 155 Optional argument OTHERS indicates that only the header that do
 156 not match KEY should be returned."
 157   (delq nil
 158         (mapcar
 159          (lambda (p) (when (funcall (if others #'not #'identity) (eq (car p) key)) p))
 160          params)))
 161
 162 (defun org-babel-get-inline-src-block-matches()
 163   "Set match data if within body of an inline source block.
 164 Returns non-nil if match-data set"
 165   (let ((src-at-0-p (save-excursion
 166                       (beginning-of-line 1)
 167                       (string= "src" (thing-at-point 'word))))
 168         (first-line-p (= 1 (line-number-at-pos)))
 169         (orig (point)))
 170     (let ((search-for (cond ((and src-at-0-p first-line-p  "src_"))
 171                             (first-line-p "[ \t]src_")
 172                             (t "[ \f\t\n\r\v]src_")))
 173           (lower-limit (if first-line-p
 174                            nil
 175                          (- (point-at-bol) 1))))
 176       (save-excursion
 177         (when (or (and src-at-0-p (bobp))
 178                   (and (re-search-forward "}" (point-at-eol) t)
 179                        (re-search-backward search-for lower-limit t)
 180                        (> orig (point))))
 181           (when (looking-at org-babel-inline-src-block-regexp)
 182             t ))))))
 183
 184 (defun org-babel-get-lob-one-liner-matches()
 185   "Set match data if on line of an lob one liner.
 186 Returns non-nil if match-data set"
 187
 188   (save-excursion
 189     (unless (= (point) (point-at-bol)) ;; move before inline block
 190       (re-search-backward "[ \f\t\n\r\v]" nil t))
 191     (if (looking-at org-babel-inline-lob-one-liner-regexp)
 192         t
 193       nil)))
 194
 195 (defun org-babel-get-src-block-info (&optional light)
 196   "Get information on the current source block.
 197
 198 Optional argument LIGHT does not resolve remote variable
 199 references; a process which could likely result in the execution
 200 of other code blocks.
 201
 202 Returns a list
 203  (language body header-arguments-alist switches name indent)."
 204   (let ((case-fold-search t) head info name indent)
 205     ;; full code block
 206     (if (setq head (org-babel-where-is-src-block-head))
 207         (save-excursion
 208           (goto-char head)
 209           (setq info (org-babel-parse-src-block-match))
 210           (setq indent (car (last info)))
 211           (setq info (butlast info))
 212           (while (and (forward-line -1)
 213                       (looking-at org-babel-multi-line-header-regexp))
 214             (setf (nth 2 info)
 215                   (org-babel-merge-params
 216                    (nth 2 info)
 217                    (org-babel-parse-header-arguments (match-string 1)))))
 218           (when (looking-at org-babel-src-name-w-name-regexp)
 219             (setq name (org-babel-clean-text-properties (match-string 4)))
 220             (when (match-string 6)
 221               (setf (nth 2 info) ;; merge functional-syntax vars and header-args
 222                     (org-babel-merge-params
 223                      (mapcar (lambda (ref) (cons :var ref))
 224                              (org-babel-ref-split-args (match-string 6)))
 225                      (nth 2 info))))))
 226       ;; inline source block
 227       (when (org-babel-get-inline-src-block-matches)
 228         (setq info (org-babel-parse-inline-src-block-match))))
 229     ;; resolve variable references and add summary parameters
 230     (when (and info (not light))
 231       (setf (nth 2 info) (org-babel-process-params (nth 2 info))))
 232     (when info (append info (list name indent)))))
 233
 234 (defun org-babel-confirm-evaluate (info)
 235   "Confirm evaluation of the code block INFO.
 236 This behavior can be suppressed by setting the value of
 237 `org-confirm-babel-evaluate' to nil, in which case all future
 238 interactive code block evaluations will proceed without any
 239 confirmation from the user.
 240
 241 Note disabling confirmation may result in accidental evaluation
 242 of potentially harmful code."
 243   (let* ((eval (or (cdr (assoc :eval (nth 2 info)))
 244                    (when (assoc :noeval (nth 2 info)) "no")))
 245          (query (cond ((equal eval "query") t)
 246                       ((functionp org-confirm-babel-evaluate)
 247                        (funcall org-confirm-babel-evaluate
 248                                 (nth 0 info) (nth 1 info)))
 249                       (t org-confirm-babel-evaluate))))
 250     (if (or (equal eval "never") (equal eval "no")
 251             (and query
 252                  (not (yes-or-no-p
 253                        (format "Evaluate this%scode block%son your system? "
 254                                (if info (format " %s " (nth 0 info)) " ")
 255                                (if (nth 4 info)
 256                                    (format " (%s) " (nth 4 info)) " "))))))
 257         (prog1 nil (message "Evaluation %s"
 258                             (if (or (equal eval "never") (equal eval "no"))
 259                                 "Disabled" "Aborted")))
 260       t)))
 261
 262 ;;;###autoload
 263 (defun org-babel-execute-safely-maybe ()
 264   (unless org-babel-no-eval-on-ctrl-c-ctrl-c
 265     (org-babel-execute-maybe)))
 266
 267 (add-hook 'org-ctrl-c-ctrl-c-hook 'org-babel-execute-safely-maybe)
 268
 269 ;;;###autoload
 270 (defun org-babel-execute-maybe ()
 271   (interactive)
 272   (or (org-babel-execute-src-block-maybe)
 273       (org-babel-lob-execute-maybe)))
 274
 275 (defun org-babel-execute-src-block-maybe ()
 276   "Conditionally execute a source block.
 277 Detect if this is context for a Babel src-block and if so
 278 then run `org-babel-execute-src-block'."
 279   (interactive)
 280   (let ((info (org-babel-get-src-block-info)))
 281     (if info
 282         (progn (org-babel-eval-wipe-error-buffer)
 283                (org-babel-execute-src-block current-prefix-arg info) t) nil)))
 284
 285 ;;;###autoload
 286 (defun org-babel-view-src-block-info ()
 287   "Display information on the current source block.
 288 This includes header arguments, language and name, and is largely
 289 a window into the `org-babel-get-src-block-info' function."
 290   (interactive)
 291   (let ((info (org-babel-get-src-block-info 'light)))
 292     (flet ((full (it) (> (length it) 0))
 293            (printf (fmt &rest args) (princ (apply #'format fmt args))))
 294       (when info
 295         (with-help-window (help-buffer)
 296           (let ((name        (nth 4 info))
 297                 (lang        (nth 0 info))
 298                 (switches    (nth 3 info))
 299                 (header-args (nth 2 info)))
 300             (when name            (printf "Name: %s\n"     name))
 301             (when lang            (printf "Lang: %s\n"     lang))
 302             (when (full switches) (printf "Switches: %s\n" switches))
 303             (printf "Header Arguments:\n")
 304             (dolist (pair (sort header-args
 305                                 (lambda (a b) (string< (symbol-name (car a))
 306                                                   (symbol-name (car b))))))
 307               (when (full (cdr pair))
 308                 (printf "\t%S%s\t%s\n"
 309                         (car pair)
 310                         (if (> (length (format "%S" (car pair))) 7) "" "\t")
 311                         (cdr pair))))))))))
 312
 313 ;;;###autoload
 314 (defun org-babel-expand-src-block-maybe ()
 315   "Conditionally expand a source block.
 316 Detect if this is context for a org-babel src-block and if so
 317 then run `org-babel-expand-src-block'."
 318   (interactive)
 319   (let ((info (org-babel-get-src-block-info)))
 320     (if info
 321         (progn (org-babel-expand-src-block current-prefix-arg info) t)
 322       nil)))
 323
 324 ;;;###autoload
 325 (defun org-babel-load-in-session-maybe ()
 326   "Conditionally load a source block in a session.
 327 Detect if this is context for a org-babel src-block and if so
 328 then run `org-babel-load-in-session'."
 329   (interactive)
 330   (let ((info (org-babel-get-src-block-info)))
 331     (if info
 332         (progn (org-babel-load-in-session current-prefix-arg info) t)
 333       nil)))
 334
 335 (add-hook 'org-metaup-hook 'org-babel-load-in-session-maybe)
 336
 337 ;;;###autoload
 338 (defun org-babel-pop-to-session-maybe ()
 339   "Conditionally pop to a session.
 340 Detect if this is context for a org-babel src-block and if so
 341 then run `org-babel-pop-to-session'."
 342   (interactive)
 343   (let ((info (org-babel-get-src-block-info)))
 344     (if info (progn (org-babel-pop-to-session current-prefix-arg info) t) nil)))
 345
 346 (add-hook 'org-metadown-hook 'org-babel-pop-to-session-maybe)
 347
 348 (defconst org-babel-header-arg-names
 349   '(cache cmdline colnames dir exports file noweb results
 350     session tangle var eval noeval comments no-expand shebang
 351     padline noweb-ref)
 352   "Common header arguments used by org-babel.
 353 Note that individual languages may define their own language
 354 specific header arguments as well.")
 355
 356 (defvar org-babel-default-header-args
 357   '((:session . "none") (:results . "replace") (:exports . "code")
 358     (:cache . "no") (:noweb . "no") (:hlines . "no") (:tangle . "no")
 359     (:padnewline . "yes"))
 360   "Default arguments to use when evaluating a source block.")
 361
 362 (defvar org-babel-default-inline-header-args
 363   '((:session . "none") (:results . "replace") (:exports . "results"))
 364   "Default arguments to use when evaluating an inline source block.")
 365
 366 (defvar org-babel-data-names '("TBLNAME" "RESNAME" "RESULTS" "DATA"))
 367
 368 (defvar org-babel-result-regexp
 369   (concat "^[ \t]*#\\+"
 370           (regexp-opt org-babel-data-names t)
 371           "\\(\\[\\([[:alnum:]]+\\)\\]\\)?\\:[ \t]*")
 372   "Regular expression used to match result lines.
 373 If the results are associated with a hash key then the hash will
 374 be saved in the second match data.")
 375
 376 (defvar org-babel-result-w-name-regexp
 377   (concat org-babel-result-regexp
 378           "\\([^ ()\f\t\n\r\v]+\\)\\(\(\\(.*\\)\)\\|\\)"))
 379
 380 (defvar org-babel-min-lines-for-block-output 10
 381   "The minimum number of lines for block output.
 382 If number of lines of output is equal to or exceeds this
 383 value, the output is placed in a #+begin_example...#+end_example
 384 block. Otherwise the output is marked as literal by inserting
 385 colons at the starts of the lines. This variable only takes
 386 effect if the :results output option is in effect.")
 387
 388 (defvar org-babel-noweb-error-langs nil
 389   "Languages for which Babel will raise literate programming errors.
 390 List of languages for which errors should be raised when the
 391 source code block satisfying a noweb reference in this language
 392 can not be resolved.")
 393
 394 (defvar org-babel-hash-show 4
 395   "Number of initial characters to show of a hidden results hash.")
 396
 397 (defvar org-babel-after-execute-hook nil
 398   "Hook for functions to be called after `org-babel-execute-src-block'")
 399 (defun org-babel-named-src-block-regexp-for-name (name)
 400   "This generates a regexp used to match a src block named NAME."
 401   (concat org-babel-src-name-regexp (regexp-quote name) "[ \t\n]*"
 402           (substring org-babel-src-block-regexp 1)))
 403
 404 ;;; functions
 405 (defvar call-process-region)
 406 ;;;###autoload
 407
 408 (defun org-babel-execute-src-block (&optional arg info params)
 409   "Execute the current source code block.
 410 Insert the results of execution into the buffer.  Source code
 411 execution and the collection and formatting of results can be
 412 controlled through a variety of header arguments.
 413
 414 With prefix argument ARG, force re-execution even if a an
 415 existing result cached in the buffer would otherwise have been
 416 returned.
 417
 418 Optionally supply a value for INFO in the form returned by
 419 `org-babel-get-src-block-info'.
 420
 421 Optionally supply a value for PARAMS which will be merged with
 422 the header arguments specified at the front of the source code
 423 block."
 424   (interactive)
 425   (let ((info (or info (org-babel-get-src-block-info))))
 426     (when (org-babel-confirm-evaluate info)
 427       (let* ((lang (nth 0 info))
 428              (params (if params
 429                          (org-babel-process-params
 430                           (org-babel-merge-params (nth 2 info) params))
 431                        (nth 2 info)))
 432              (cache? (and (not arg) (cdr (assoc :cache params))
 433                           (string= "yes" (cdr (assoc :cache params)))))
 434              (result-params (cdr (assoc :result-params params)))
 435              (new-hash (when cache? (org-babel-sha1-hash info)))
 436              (old-hash (when cache? (org-babel-current-result-hash)))
 437              (body (setf (nth 1 info)
 438                          (let ((noweb (cdr (assoc :noweb params))))
 439                            (if (and noweb
 440                                     (or (string= "yes" noweb)
 441                                         (string= "tangle" noweb)))
 442                                (org-babel-expand-noweb-references info)
 443                              (nth 1 info)))))
 444              (dir (cdr (assoc :dir params)))
 445              (default-directory
 446                (or (and dir (file-name-as-directory dir)) default-directory))
 447              (org-babel-call-process-region-original
 448               (if (boundp 'org-babel-call-process-region-original)
 449                   org-babel-call-process-region-original
 450                 (symbol-function 'call-process-region)))
 451              (indent (car (last info)))
 452              result cmd)
 453         (unwind-protect
 454             (flet ((call-process-region (&rest args)
 455                     (apply 'org-babel-tramp-handle-call-process-region args)))
 456               (flet ((lang-check (f)
 457                        (let ((f (intern (concat "org-babel-execute:" f))))
 458                          (when (fboundp f) f))))
 459                 (setq cmd
 460                       (or (lang-check lang)
 461                           (lang-check (symbol-name
 462                                        (cdr (assoc lang org-src-lang-modes))))
 463                           (error "No org-babel-execute function for %s!" lang))))
 464               (if (and (not arg) new-hash (equal new-hash old-hash))
 465                   (save-excursion ;; return cached result
 466                     (goto-char (org-babel-where-is-src-block-result nil info))
 467                     (end-of-line 1) (forward-char 1)
 468                     (setq result (org-babel-read-result))
 469                     (message (replace-regexp-in-string
 470                               "%" "%%" (format "%S" result))) result)
 471                 (message "executing %s code block%s..."
 472                          (capitalize lang)
 473                          (if (nth 4 info) (format " (%s)" (nth 4 info)) ""))
 474                 (setq result
 475                       ((lambda (result)
 476                          (if (and (eq (cdr (assoc :result-type params)) 'value)
 477                                   (or (member "vector" result-params)
 478                                       (member "table" result-params))
 479                                   (not (listp result)))
 480                              (list (list result)) result))
 481                        (funcall cmd body params)))
 482                 ;; if non-empty result and :file then write to :file
 483                 (when (cdr (assoc :file params))
 484                   (when result
 485                     (with-temp-file (cdr (assoc :file params))
 486                       (insert
 487                        (org-babel-format-result
 488                         result (cdr (assoc :sep (nth 2 info)))))))
 489                   (setq result (cdr (assoc :file params))))
 490                 (org-babel-insert-result
 491                  result result-params info new-hash indent lang)
 492                 (run-hooks 'org-babel-after-execute-hook)
 493                 result))
 494           (setq call-process-region 'org-babel-call-process-region-original))))))
 495
 496 (defun org-babel-expand-body:generic (body params &optional var-lines)
 497   "Expand BODY with PARAMS.
 498 Expand a block of code with org-babel according to it's header
 499 arguments.  This generic implementation of body expansion is
 500 called for languages which have not defined their own specific
 501 org-babel-expand-body:lang function."
 502   (mapconcat #'identity (append var-lines (list body)) "\n"))
 503
 504 ;;;###autoload
 505 (defun org-babel-expand-src-block (&optional arg info params)
 506   "Expand the current source code block.
 507 Expand according to the source code block's header
 508 arguments and pop open the results in a preview buffer."
 509   (interactive)
 510   (let* ((info (or info (org-babel-get-src-block-info)))
 511          (lang (nth 0 info))
 512          (params (setf (nth 2 info)
 513                        (sort (org-babel-merge-params (nth 2 info) params)
 514                              (lambda (el1 el2) (string< (symbol-name (car el1))
 515                                                    (symbol-name (car el2)))))))
 516          (body (setf (nth 1 info)
 517                      (if (and (cdr (assoc :noweb params))
 518                               (string= "yes" (cdr (assoc :noweb params))))
 519                          (org-babel-expand-noweb-references info) (nth 1 info))))
 520          (expand-cmd (intern (concat "org-babel-expand-body:" lang)))
 521          (assignments-cmd (intern (concat "org-babel-variable-assignments:"
 522                                           lang)))
 523          (expanded
 524           (if (fboundp expand-cmd) (funcall expand-cmd body params)
 525             (org-babel-expand-body:generic
 526              body params (and (fboundp assignments-cmd)
 527                               (funcall assignments-cmd params))))))
 528     (org-edit-src-code
 529      nil expanded (concat "*Org-Babel Preview " (buffer-name) "[ " lang " ]*"))))
 530
 531 (defun org-babel-edit-distance (s1 s2)
 532   "Return the edit (levenshtein) distance between strings S1 S2."
 533   (let* ((l1 (length s1))
 534          (l2 (length s2))
 535          (dist (map 'vector (lambda (_) (make-vector (1+ l2) nil))
 536                     (number-sequence 1 (1+ l1)))))
 537     (flet ((in (i j) (aref (aref dist i) j))
 538            (mmin (&rest lst) (apply #'min (remove nil lst))))
 539       (setf (aref (aref dist 0) 0) 0)
 540       (dolist (i (number-sequence 1 l1))
 541         (dolist (j (number-sequence 1 l2))
 542           (setf (aref (aref dist i) j)
 543                 (+ (if (equal (aref s1 (1- i)) (aref s2 (1- j))) 0 1)
 544                    (mmin (in (1- i) j) (in i (1- j)) (in (1- i) (1- j)))))))
 545       (in l1 l2))))
 546
 547 ;;;###autoload
 548 (defun org-babel-check-src-block ()
 549   "Check for misspelled header arguments in the current code block."
 550   (interactive)
 551   ;; TODO: report malformed code block
 552   ;; TODO: report incompatible combinations of header arguments
 553   (let ((too-close 2)) ;; <- control closeness to report potential match
 554     (dolist (header (mapcar (lambda (arg) (substring (symbol-name (car arg)) 1))
 555                             (and (org-babel-where-is-src-block-head)
 556                                  (org-babel-parse-header-arguments
 557                                   (org-babel-clean-text-properties
 558                                    (match-string 4))))))
 559       (dolist (name (mapcar #'symbol-name org-babel-header-arg-names))
 560         (when (and (not (string= header name))
 561                    (<= (org-babel-edit-distance header name) too-close))
 562           (error "supplied header \"%S\" is suspiciously close to \"%S\""
 563                  header name))))
 564     (message "No suspicious header arguments found.")))
 565
 566 ;;;###autoload
 567 (defun org-babel-load-in-session (&optional arg info)
 568   "Load the body of the current source-code block.
 569 Evaluate the header arguments for the source block before
 570 entering the session.  After loading the body this pops open the
 571 session."
 572   (interactive)
 573   (let* ((info (or info (org-babel-get-src-block-info)))
 574          (lang (nth 0 info))
 575          (params (nth 2 info))
 576          (body (setf (nth 1 info)
 577                      (if (and (cdr (assoc :noweb params))
 578                               (string= "yes" (cdr (assoc :noweb params))))
 579                          (org-babel-expand-noweb-references info)
 580                        (nth 1 info))))
 581          (session (cdr (assoc :session params)))
 582          (dir (cdr (assoc :dir params)))
 583          (default-directory
 584            (or (and dir (file-name-as-directory dir)) default-directory))
 585          (cmd (intern (concat "org-babel-load-session:" lang))))
 586     (unless (fboundp cmd)
 587       (error "No org-babel-load-session function for %s!" lang))
 588     (pop-to-buffer (funcall cmd session body params))
 589     (end-of-line 1)))
 590
 591 ;;;###autoload
 592 (defun org-babel-initiate-session (&optional arg info)
 593   "Initiate session for current code block.
 594 If called with a prefix argument then resolve any variable
 595 references in the header arguments and assign these variables in
 596 the session. Copy the body of the code block to the kill ring."
 597   (interactive "P")
 598   (let* ((info (or info (org-babel-get-src-block-info (not arg))))
 599          (lang (nth 0 info))
 600          (body (nth 1 info))
 601          (params (nth 2 info))
 602          (session (cdr (assoc :session params)))
 603          (dir (cdr (assoc :dir params)))
 604          (default-directory
 605            (or (and dir (file-name-as-directory dir)) default-directory))
 606          (init-cmd (intern (format "org-babel-%s-initiate-session" lang)))
 607          (prep-cmd (intern (concat "org-babel-prep-session:" lang))))
 608     (if (and (stringp session) (string= session "none"))
 609         (error "This block is not using a session!"))
 610     (unless (fboundp init-cmd)
 611       (error "No org-babel-initiate-session function for %s!" lang))
 612     (with-temp-buffer (insert (org-babel-trim body))
 613                       (copy-region-as-kill (point-min) (point-max)))
 614     (when arg
 615       (unless (fboundp prep-cmd)
 616         (error "No org-babel-prep-session function for %s!" lang))
 617       (funcall prep-cmd session params))
 618     (funcall init-cmd session params)))
 619
 620 ;;;###autoload
 621 (defun org-babel-switch-to-session (&optional arg info)
 622   "Switch to the session of the current code block.
 623 Uses `org-babel-initiate-session' to start the session. If called
 624 with a prefix argument then this is passed on to
 625 `org-babel-initiate-session'."
 626   (interactive "P")
 627   (pop-to-buffer (org-babel-initiate-session arg info))
 628   (end-of-line 1))
 629
 630 (defalias 'org-babel-pop-to-session 'org-babel-switch-to-session)
 631
 632 ;;;###autoload
 633 (defun org-babel-switch-to-session-with-code (&optional arg info)
 634   "Switch to code buffer and display session."
 635   (interactive "P")
 636   (flet ((swap-windows
 637           ()
 638           (let ((other-window-buffer (window-buffer (next-window))))
 639             (set-window-buffer (next-window) (current-buffer))
 640             (set-window-buffer (selected-window) other-window-buffer))
 641           (other-window 1)))
 642     (let ((info (org-babel-get-src-block-info))
 643           (org-src-window-setup 'reorganize-frame))
 644       (save-excursion
 645         (org-babel-switch-to-session arg info))
 646       (org-edit-src-code))
 647     (swap-windows)))
 648
 649 (defmacro org-babel-do-in-edit-buffer (&rest body)
 650   "Evaluate BODY in edit buffer if there is a code block at point.
 651 Return t if a code block was found at point, nil otherwise."
 652   `(let ((org-src-window-setup 'switch-invisibly))
 653      (when (and (org-babel-where-is-src-block-head)
 654                 (org-edit-src-code nil nil nil))
 655        (unwind-protect (progn ,@body)
 656          (if (org-bound-and-true-p org-edit-src-from-org-mode)
 657              (org-edit-src-exit)))
 658        t)))
 659 (def-edebug-spec org-babel-do-in-edit-buffer (body))
 660
 661 (defun org-babel-do-key-sequence-in-edit-buffer (key)
 662   "Read key sequence and execute the command in edit buffer.
 663 Enter a key sequence to be executed in the language major-mode
 664 edit buffer. For example, TAB will alter the contents of the
 665 Org-mode code block according to the effect of TAB in the
 666 language major-mode buffer. For languages that support
 667 interactive sessions, this can be used to send code from the Org
 668 buffer to the session for evaluation using the native major-mode
 669 evaluation mechanisms."
 670   (interactive "kEnter key-sequence to execute in edit buffer: ")
 671   (org-babel-do-in-edit-buffer
 672    (call-interactively
 673     (key-binding (or key (read-key-sequence nil))))))
 674
 675 (defvar org-bracket-link-regexp)
 676 ;;;###autoload
 677 (defun org-babel-open-src-block-result (&optional re-run)
 678   "If `point' is on a src block then open the results of the
 679 source code block, otherwise return nil.  With optional prefix
 680 argument RE-RUN the source-code block is evaluated even if
 681 results already exist."
 682   (interactive "P")
 683   (let ((info (org-babel-get-src-block-info)))
 684     (when info
 685       (save-excursion
 686         ;; go to the results, if there aren't any then run the block
 687         (goto-char (or (and (not re-run) (org-babel-where-is-src-block-result))
 688                        (progn (org-babel-execute-src-block)
 689                               (org-babel-where-is-src-block-result))))
 690         (end-of-line 1)
 691         (while (looking-at "[\n\r\t\f ]") (forward-char 1))
 692         ;; open the results
 693         (if (looking-at org-bracket-link-regexp)
 694             ;; file results
 695             (org-open-at-point)
 696           (let ((r (org-babel-format-result
 697                     (org-babel-read-result) (cdr (assoc :sep (nth 2 info))))))
 698             (pop-to-buffer (get-buffer-create "*Org-Babel Results*"))
 699             (delete-region (point-min) (point-max))
 700             (insert r)))
 701         t))))
 702
 703 ;;;###autoload
 704 (defmacro org-babel-map-src-blocks (file &rest body)
 705   "Evaluate BODY forms on each source-block in FILE.
 706 If FILE is nil evaluate BODY forms on source blocks in current
 707 buffer.  During evaluation of BODY the following local variables
 708 are set relative to the currently matched code block.
 709
 710 full-block ------- string holding the entirety of the code block
 711 beg-block -------- point at the beginning of the code block
 712 end-block -------- point at the end of the matched code block
 713 lang ------------- string holding the language of the code block
 714 beg-lang --------- point at the beginning of the lang
 715 end-lang --------- point at the end of the lang
 716 switches --------- string holding the switches
 717 beg-switches ----- point at the beginning of the switches
 718 end-switches ----- point at the end of the switches
 719 header-args ------ string holding the header-args
 720 beg-header-args -- point at the beginning of the header-args
 721 end-header-args -- point at the end of the header-args
 722 body ------------- string holding the body of the code block
 723 beg-body --------- point at the beginning of the body
 724 end-body --------- point at the end of the body"
 725   (declare (indent 1))
 726   (let ((tempvar (make-symbol "file")))
 727     `(let* ((,tempvar ,file)
 728             (visited-p (or (null ,tempvar)
 729                            (get-file-buffer (expand-file-name ,tempvar))))
 730             (point (point)) to-be-removed)
 731        (save-window-excursion
 732          (when ,tempvar (find-file ,tempvar))
 733          (setq to-be-removed (current-buffer))
 734          (goto-char (point-min))
 735          (while (re-search-forward org-babel-src-block-regexp nil t)
 736            (goto-char (match-beginning 0))
 737            (let ((full-block (match-string 0))
 738                  (beg-block (match-beginning 0))
 739                  (end-block (match-end 0))
 740                  (lang (match-string 2))
 741                  (beg-lang (match-beginning 2))
 742                  (end-lang (match-end 2))
 743                  (switches (match-string 3))
 744                  (beg-switches (match-beginning 3))
 745                  (end-switches (match-end 3))
 746                  (header-args (match-string 4))
 747                  (beg-header-args (match-beginning 4))
 748                  (end-header-args (match-end 4))
 749                  (body (match-string 5))
 750                  (beg-body (match-beginning 5))
 751                  (end-body (match-end 5)))
 752              ,@body
 753              (goto-char end-block))))
 754        (unless visited-p (kill-buffer to-be-removed))
 755        (goto-char point))))
 756 (def-edebug-spec org-babel-map-src-blocks (form body))
 757
 758 ;;;###autoload
 759 (defmacro org-babel-map-inline-src-blocks (file &rest body)
 760   "Evaluate BODY forms on each inline source-block in FILE.
 761 If FILE is nil evaluate BODY forms on source blocks in current
 762 buffer."
 763   (declare (indent 1))
 764   (let ((tempvar (make-symbol "file")))
 765     `(let* ((,tempvar ,file)
 766             (visited-p (or (null ,tempvar)
 767                            (get-file-buffer (expand-file-name ,tempvar))))
 768             (point (point)) to-be-removed)
 769        (save-window-excursion
 770          (when ,tempvar (find-file ,tempvar))
 771          (setq to-be-removed (current-buffer))
 772          (goto-char (point-min))
 773          (while (re-search-forward org-babel-inline-src-block-regexp nil t)
 774            (goto-char (match-beginning 1))
 775            (save-match-data ,@body)
 776            (goto-char (match-end 0))))
 777        (unless visited-p (kill-buffer to-be-removed))
 778        (goto-char point))))
 779 (def-edebug-spec org-babel-map-inline-src-blocks (form body))
 780
 781 ;;;###autoload
 782 (defun org-babel-execute-buffer (&optional arg)
 783   "Execute source code blocks in a buffer.
 784 Call `org-babel-execute-src-block' on every source block in
 785 the current buffer."
 786   (interactive "P")
 787   (org-babel-eval-wipe-error-buffer)
 788   (org-save-outline-visibility t
 789     (org-babel-map-src-blocks nil
 790       (org-babel-execute-src-block arg))
 791     (org-babel-map-inline-src-blocks nil
 792       (org-babel-execute-src-block arg))))
 793
 794 ;;;###autoload
 795 (defun org-babel-execute-subtree (&optional arg)
 796   "Execute source code blocks in a subtree.
 797 Call `org-babel-execute-src-block' on every source block in
 798 the current subtree."
 799   (interactive "P")
 800   (save-restriction
 801     (save-excursion
 802       (org-narrow-to-subtree)
 803       (org-babel-execute-buffer arg)
 804       (widen))))
 805
 806 ;;;###autoload
 807 (defun org-babel-sha1-hash (&optional info)
 808   "Generate an sha1 hash based on the value of info."
 809   (interactive)
 810   (let ((print-level nil)
 811         (info (or info (org-babel-get-src-block-info))))
 812     (setf (nth 2 info)
 813           (sort (copy-sequence (nth 2 info))
 814                 (lambda (a b) (string< (car a) (car b)))))
 815     (labels ((rm (lst)
 816                  (dolist (p '("replace" "silent" "append" "prepend"))
 817                    (setq lst (remove p lst)))
 818                  lst)
 819              (norm (arg)
 820                    (let ((v (if (and (listp (cdr arg)) (null (cddr arg)))
 821                                 (copy-sequence (cdr arg))
 822                               (cdr arg))))
 823                      (when (and v (not (and (sequencep v)
 824                                             (not (consp v))
 825                                             (= (length v) 0))))
 826                        (cond
 827                         ((and (listp v) ; lists are sorted
 828                               (member (car arg) '(:result-params)))
 829                          (sort (rm v) #'string<))
 830                         ((and (stringp v) ; strings are sorted
 831                               (member (car arg) '(:results :exports)))
 832                          (mapconcat #'identity (sort (rm (split-string v))
 833                                                      #'string<) " "))
 834                         (t v))))))
 835       ((lambda (hash)
 836          (when (org-called-interactively-p 'interactive) (message hash)) hash)
 837        (let ((it (format "%s-%s"
 838                          (mapconcat
 839                           #'identity
 840                           (delq nil (mapcar (lambda (arg)
 841                                               (let ((normalized (norm arg)))
 842                                                 (when normalized
 843                                                   (format "%S" normalized))))
 844                                             (nth 2 info))) ":")
 845                          (nth 1 info))))
 846          (sha1 it))))))
 847
 848 (defun org-babel-current-result-hash ()
 849   "Return the in-buffer hash associated with INFO."
 850   (org-babel-where-is-src-block-result)
 851   (org-babel-clean-text-properties (match-string 3)))
 852
 853 (defun org-babel-hide-hash ()
 854   "Hide the hash in the current results line.
 855 Only the initial `org-babel-hash-show' characters of the hash
 856 will remain visible."
 857   (add-to-invisibility-spec '(org-babel-hide-hash . t))
 858   (save-excursion
 859     (when (and (re-search-forward org-babel-result-regexp nil t)
 860                (match-string 3))
 861       (let* ((start (match-beginning 3))
 862              (hide-start (+ org-babel-hash-show start))
 863              (end (match-end 3))
 864              (hash (match-string 3))
 865              ov1 ov2)
 866         (setq ov1 (make-overlay start hide-start))
 867         (setq ov2 (make-overlay hide-start end))
 868         (overlay-put ov2 'invisible 'org-babel-hide-hash)
 869         (overlay-put ov1 'babel-hash hash)))))
 870
 871 (defun org-babel-hide-all-hashes ()
 872   "Hide the hash in the current buffer.
 873 Only the initial `org-babel-hash-show' characters of each hash
 874 will remain visible.  This function should be called as part of
 875 the `org-mode-hook'."
 876   (save-excursion
 877     (while (re-search-forward org-babel-result-regexp nil t)
 878       (goto-char (match-beginning 0))
 879       (org-babel-hide-hash)
 880       (goto-char (match-end 0)))))
 881 (add-hook 'org-mode-hook 'org-babel-hide-all-hashes)
 882
 883 (defun org-babel-hash-at-point (&optional point)
 884   "Return the value of the hash at POINT.
 885 The hash is also added as the last element of the kill ring.
 886 This can be called with C-c C-c."
 887   (interactive)
 888   (let ((hash (car (delq nil (mapcar
 889                               (lambda (ol) (overlay-get ol 'babel-hash))
 890                               (overlays-at (or point (point))))))))
 891     (when hash (kill-new hash) (message hash))))
 892 (add-hook 'org-ctrl-c-ctrl-c-hook 'org-babel-hash-at-point)
 893
 894 (defun org-babel-result-hide-spec ()
 895   "Hide portions of results lines.
 896 Add `org-babel-hide-result' as an invisibility spec for hiding
 897 portions of results lines."
 898   (add-to-invisibility-spec '(org-babel-hide-result . t)))
 899 (add-hook 'org-mode-hook 'org-babel-result-hide-spec)
 900
 901 (defvar org-babel-hide-result-overlays nil
 902   "Overlays hiding results.")
 903
 904 (defun org-babel-result-hide-all ()
 905   "Fold all results in the current buffer."
 906   (interactive)
 907   (org-babel-show-result-all)
 908   (save-excursion
 909     (while (re-search-forward org-babel-result-regexp nil t)
 910       (save-excursion (goto-char (match-beginning 0))
 911                       (org-babel-hide-result-toggle-maybe)))))
 912
 913 (defun org-babel-show-result-all ()
 914   "Unfold all results in the current buffer."
 915   (mapc 'delete-overlay org-babel-hide-result-overlays)
 916   (setq org-babel-hide-result-overlays nil))
 917
 918 ;;;###autoload
 919 (defun org-babel-hide-result-toggle-maybe ()
 920   "Toggle visibility of result at point."
 921   (interactive)
 922   (let ((case-fold-search t))
 923     (if (save-excursion
 924           (beginning-of-line 1)
 925           (looking-at org-babel-result-regexp))
 926         (progn (org-babel-hide-result-toggle)
 927                t) ;; to signal that we took action
 928       nil))) ;; to signal that we did not
 929
 930 (defun org-babel-hide-result-toggle (&optional force)
 931   "Toggle the visibility of the current result."
 932   (interactive)
 933   (save-excursion
 934     (beginning-of-line)
 935     (if (re-search-forward org-babel-result-regexp nil t)
 936         (let ((start (progn (beginning-of-line 2) (- (point) 1)))
 937               (end (progn (goto-char (- (org-babel-result-end) 1)) (point)))
 938               ov)
 939           (if (memq t (mapcar (lambda (overlay)
 940                                 (eq (overlay-get overlay 'invisible)
 941                                     'org-babel-hide-result))
 942                               (overlays-at start)))
 943               (if (or (not force) (eq force 'off))
 944                   (mapc (lambda (ov)
 945                           (when (member ov org-babel-hide-result-overlays)
 946                             (setq org-babel-hide-result-overlays
 947                                   (delq ov org-babel-hide-result-overlays)))
 948                           (when (eq (overlay-get ov 'invisible)
 949                                     'org-babel-hide-result)
 950                             (delete-overlay ov)))
 951                         (overlays-at start)))
 952             (setq ov (make-overlay start end))
 953             (overlay-put ov 'invisible 'org-babel-hide-result)
 954             ;; make the block accessible to isearch
 955             (overlay-put
 956              ov 'isearch-open-invisible
 957              (lambda (ov)
 958                (when (member ov org-babel-hide-result-overlays)
 959                  (setq org-babel-hide-result-overlays
 960                        (delq ov org-babel-hide-result-overlays)))
 961                (when (eq (overlay-get ov 'invisible)
 962                          'org-babel-hide-result)
 963                  (delete-overlay ov))))
 964             (push ov org-babel-hide-result-overlays)))
 965       (error "Not looking at a result line"))))
 966
 967 ;; org-tab-after-check-for-cycling-hook
 968 (add-hook 'org-tab-first-hook 'org-babel-hide-result-toggle-maybe)
 969 ;; Remove overlays when changing major mode
 970 (add-hook 'org-mode-hook
 971           (lambda () (org-add-hook 'change-major-mode-hook
 972                                    'org-babel-show-result-all 'append 'local)))
 973
 974 (defvar org-file-properties)
 975 (defun org-babel-params-from-properties (&optional lang)
 976   "Retrieve parameters specified as properties.
 977 Return an association list of any source block params which
 978 may be specified in the properties of the current outline entry."
 979   (save-match-data
 980     (let (val sym)
 981       (delq nil
 982             (mapcar
 983              (lambda (header-arg)
 984                (and (setq val (org-entry-get (point) header-arg t))
 985                     (cons (intern (concat ":" header-arg))
 986                           (org-babel-read val))))
 987              (mapcar
 988               'symbol-name
 989               (append
 990                org-babel-header-arg-names
 991                (progn
 992                  (setq sym (intern (concat "org-babel-header-arg-names:" lang)))
 993                  (and (boundp sym) (eval sym))))))))))
 994
 995 (defun org-babel-params-from-buffer ()
 996   "Retrieve per-buffer parameters.
 997  Return an association list of any source block params which
 998 may be specified in the current buffer."
 999   (let (local-properties)
1000     (save-match-data
1001       (save-excursion
1002         (save-restriction
1003           (widen)
1004           (goto-char (point-min))
1005           (while (re-search-forward
1006                   (org-make-options-regexp (list "BABEL" "PROPERTIES")) nil t)
1007             (setq local-properties
1008                   (org-babel-merge-params
1009                    local-properties
1010                    (org-babel-parse-header-arguments
1011                     (org-match-string-no-properties 2)))))
1012           local-properties)))))
1013
1014 (defvar org-src-preserve-indentation)
1015 (defun org-babel-parse-src-block-match ()
1016   "Parse the results from a match of the `org-babel-src-block-regexp'."
1017   (let* ((block-indentation (length (match-string 1)))
1018          (lang (org-babel-clean-text-properties (match-string 2)))
1019          (lang-headers (intern (concat "org-babel-default-header-args:" lang)))
1020          (switches (match-string 3))
1021          (body (org-babel-clean-text-properties
1022                 (let* ((body (match-string 5))
1023                        (sub-length (- (length body) 1)))
1024                   (if (and (> sub-length 0)
1025                            (string= "\n" (substring body sub-length)))
1026                       (substring body 0 sub-length)
1027                     body))))
1028          (preserve-indentation (or org-src-preserve-indentation
1029                                    (string-match "-i\\>" switches))))
1030     (list lang
1031           ;; get block body less properties, protective commas, and indentation
1032           (with-temp-buffer
1033             (save-match-data
1034               (insert (org-babel-strip-protective-commas body))
1035               (unless preserve-indentation (org-do-remove-indentation))
1036               (buffer-string)))
1037           (org-babel-merge-params
1038            org-babel-default-header-args
1039            (org-babel-params-from-buffer)
1040            (org-babel-params-from-properties lang)
1041            (if (boundp lang-headers) (eval lang-headers) nil)
1042            (org-babel-parse-header-arguments
1043             (org-babel-clean-text-properties (or (match-string 4) ""))))
1044           switches
1045           block-indentation)))
1046
1047 (defun org-babel-parse-inline-src-block-match ()
1048   "Parse the results from a match of the `org-babel-inline-src-block-regexp'."
1049   (let* ((lang (org-babel-clean-text-properties (match-string 2)))
1050          (lang-headers (intern (concat "org-babel-default-header-args:" lang))))
1051     (list lang
1052           (org-babel-strip-protective-commas
1053            (org-babel-clean-text-properties (match-string 5)))
1054           (org-babel-merge-params
1055            org-babel-default-inline-header-args
1056            (org-babel-params-from-buffer)
1057            (org-babel-params-from-properties lang)
1058            (if (boundp lang-headers) (eval lang-headers) nil)
1059            (org-babel-parse-header-arguments
1060             (org-babel-clean-text-properties (or (match-string 4) "")))))))
1061
1062 (defun org-babel-parse-header-arguments (arg-string)
1063   "Parse a string of header arguments returning an alist."
1064   (when (> (length arg-string) 0)
1065     (delq nil
1066           (mapcar
1067            (lambda (arg)
1068              (if (string-match
1069                   "\\([^ \f\t\n\r\v]+\\)[ \f\t\n\r\v]+\\([^ \f\t\n\r\v]+.*\\)"
1070                   arg)
1071                  (cons (intern (match-string 1 arg))
1072                        (org-babel-read (org-babel-chomp (match-string 2 arg))))
1073                (cons (intern (org-babel-chomp arg)) nil)))
1074            (let ((balance 0) (partial nil) (lst nil) (last 0))
1075              (mapc (lambda (ch)  ; split on [] balanced instances of [ \t]:
1076                      (setq balance (+ balance
1077                                       (cond ((equal 91 ch) 1)
1078                                             ((equal 93 ch) -1)
1079                                             (t 0))))
1080                      (setq partial (cons ch partial))
1081                      (when (and (= ch 58) (= balance 0)
1082                                 (or (= last 32) (= last 9)))
1083                        (setq lst (cons (apply #'string (nreverse (cddr partial)))
1084                                        lst))
1085                        (setq partial (list ch)))
1086                      (setq last ch))
1087                    (string-to-list arg-string))
1088              (nreverse (cons (apply #'string (nreverse partial)) lst)))))))
1089
1090 (defun org-babel-process-params (params)
1091   "Expand variables in PARAMS and add summary parameters."
1092   (let* ((vars-and-names (org-babel-disassemble-tables
1093                           (mapcar (lambda (el)
1094                                     (if (consp (cdr el))
1095                                         (cdr el) (org-babel-ref-parse (cdr el))))
1096                                   (org-babel-get-header params :var))
1097                           (cdr (assoc :hlines params))
1098                           (cdr (assoc :colnames params))
1099                           (cdr (assoc :rownames params))))
1100          (raw-result (or (cdr (assoc :results params)) ""))
1101          (result-params (append
1102                          (split-string (if (stringp raw-result)
1103                                            raw-result
1104                                          (eval raw-result)))
1105                          (cdr (assoc :result-params params)))))
1106     (append
1107      (mapcar (lambda (var) (cons :var var)) (car vars-and-names))
1108      (list
1109       (cons :colname-names (or (cdr (assoc :colname-names params))
1110                                (cadr  vars-and-names)))
1111       (cons :rowname-names (or (cdr (assoc :rowname-names params))
1112                                (caddr vars-and-names)))
1113       (cons :result-params result-params)
1114       (cons :result-type  (cond ((member "output" result-params) 'output)
1115                                 ((member "value" result-params) 'value)
1116                                 (t 'value))))
1117      (org-babel-get-header params :var 'other))))
1118
1119 ;; row and column names
1120 (defun org-babel-del-hlines (table)
1121   "Remove all 'hlines from TABLE."
1122   (remove 'hline table))
1123
1124 (defun org-babel-get-colnames (table)
1125   "Return the column names of TABLE.
1126 Return a cons cell, the `car' of which contains the TABLE less
1127 colnames, and the `cdr' of which contains a list of the column
1128 names."
1129   (if (equal 'hline (nth 1 table))
1130       (cons (cddr table) (car table))
1131     (cons (cdr table) (car table))))
1132
1133 (defun org-babel-get-rownames (table)
1134   "Return the row names of TABLE.
1135 Return a cons cell, the `car' of which contains the TABLE less
1136 colnames, and the `cdr' of which contains a list of the column
1137 names.  Note: this function removes any hlines in TABLE."
1138   (flet ((trans (table) (apply #'mapcar* #'list table)))
1139     (let* ((width (apply 'max
1140                          (mapcar (lambda (el) (if (listp el) (length el) 0)) table)))
1141            (table (trans (mapcar (lambda (row)
1142                                    (if (not (equal row 'hline))
1143                                        row
1144                                      (setq row '())
1145                                      (dotimes (n width)
1146                                        (setq row (cons 'hline row)))
1147                                      row))
1148                                  table))))
1149       (cons (mapcar (lambda (row) (if (equal (car row) 'hline) 'hline row))
1150                     (trans (cdr table)))
1151             (remove 'hline (car table))))))
1152
1153 (defun org-babel-put-colnames (table colnames)
1154   "Add COLNAMES to TABLE if they exist."
1155   (if colnames (apply 'list colnames 'hline table) table))
1156
1157 (defun org-babel-put-rownames (table rownames)
1158   "Add ROWNAMES to TABLE if they exist."
1159   (if rownames
1160       (mapcar (lambda (row)
1161                 (if (listp row)
1162                     (cons (or (pop rownames) "") row)
1163                   row)) table)
1164     table))
1165
1166 (defun org-babel-pick-name (names selector)
1167   "Select one out of an alist of row or column names.
1168 SELECTOR can be either a list of names in which case those names
1169 will be returned directly, or an index into the list NAMES in
1170 which case the indexed names will be return."
1171   (if (listp selector)
1172       selector
1173     (when names
1174       (if (and selector (symbolp selector) (not (equal t selector)))
1175           (cdr (assoc selector names))
1176         (if (integerp selector)
1177             (nth (- selector 1) names)
1178           (cdr (car (last names))))))))
1179
1180 (defun org-babel-disassemble-tables (vars hlines colnames rownames)
1181   "Parse tables for further processing.
1182 Process the variables in VARS according to the HLINES,
1183 ROWNAMES and COLNAMES header arguments.  Return a list consisting
1184 of the vars, cnames and rnames."
1185   (let (cnames rnames)
1186     (list
1187      (mapcar
1188       (lambda (var)
1189         (when (listp (cdr var))
1190           (when (and (not (equal colnames "no"))
1191                      (or colnames (and (equal (nth 1 (cdr var)) 'hline)
1192                                        (not (member 'hline (cddr (cdr var)))))))
1193             (let ((both (org-babel-get-colnames (cdr var))))
1194               (setq cnames (cons (cons (car var) (cdr both))
1195                                  cnames))
1196               (setq var (cons (car var) (car both)))))
1197           (when (and rownames (not (equal rownames "no")))
1198             (let ((both (org-babel-get-rownames (cdr var))))
1199               (setq rnames (cons (cons (car var) (cdr both))
1200                                  rnames))
1201               (setq var (cons (car var) (car both)))))
1202           (when (and hlines (not (equal hlines "yes")))
1203             (setq var (cons (car var) (org-babel-del-hlines (cdr var))))))
1204         var)
1205       vars)
1206      cnames rnames)))
1207
1208 (defun org-babel-reassemble-table (table colnames rownames)
1209   "Add column and row names to a table.
1210 Given a TABLE and set of COLNAMES and ROWNAMES add the names
1211 to the table for reinsertion to org-mode."
1212   (if (listp table)
1213       ((lambda (table)
1214          (if (and colnames (listp (car table)) (= (length (car table))
1215                                                   (length colnames)))
1216              (org-babel-put-colnames table colnames) table))
1217        (if (and rownames (= (length table) (length rownames)))
1218            (org-babel-put-rownames table rownames) table))
1219     table))
1220
1221 (defun org-babel-where-is-src-block-head ()
1222   "Find where the current source block begins.
1223 Return the point at the beginning of the current source
1224 block.  Specifically at the beginning of the #+BEGIN_SRC line.
1225 If the point is not on a source block then return nil."
1226   (let ((initial (point)) top bottom)
1227     (or
1228      (save-excursion ;; on a source name line or a #+header line
1229        (beginning-of-line 1)
1230        (and (or (looking-at org-babel-src-name-regexp)
1231                 (looking-at org-babel-multi-line-header-regexp))
1232             (progn
1233               (while (and (forward-line 1)
1234                           (looking-at org-babel-multi-line-header-regexp)))
1235               (looking-at org-babel-src-block-regexp))
1236             (point)))
1237      (save-excursion ;; on a #+begin_src line
1238        (beginning-of-line 1)
1239        (and (looking-at org-babel-src-block-regexp)
1240             (point)))
1241      (save-excursion ;; inside a src block
1242        (and
1243         (re-search-backward "^[ \t]*#\\+begin_src" nil t) (setq top (point))
1244         (re-search-forward "^[ \t]*#\\+end_src" nil t) (setq bottom (point))
1245         (< top initial) (< initial bottom)
1246         (progn (goto-char top) (beginning-of-line 1)
1247                (looking-at org-babel-src-block-regexp))
1248         (point))))))
1249
1250 ;;;###autoload
1251 (defun org-babel-goto-src-block-head ()
1252   "Go to the beginning of the current code block."
1253   (interactive)
1254   ((lambda (head)
1255      (if head (goto-char head) (error "not currently in a code block")))
1256    (org-babel-where-is-src-block-head)))
1257
1258 ;;;###autoload
1259 (defun org-babel-goto-named-src-block (name)
1260   "Go to a named source-code block."
1261   (interactive
1262    (let ((completion-ignore-case t))
1263      (list (org-icompleting-read "source-block name: "
1264                                  (org-babel-src-block-names) nil t))))
1265   (let ((point (org-babel-find-named-block name)))
1266     (if point
1267         ;; taken from `org-open-at-point'
1268         (progn (goto-char point) (org-show-context))
1269       (message "source-code block '%s' not found in this buffer" name))))
1270
1271 (defun org-babel-find-named-block (name)
1272   "Find a named source-code block.
1273 Return the location of the source block identified by source
1274 NAME, or nil if no such block exists. Set match data according to
1275 org-babel-named-src-block-regexp."
1276   (save-excursion
1277     (let ((case-fold-search t)
1278           (regexp (org-babel-named-src-block-regexp-for-name name)) msg)
1279       (goto-char (point-min))
1280       (when (or (re-search-forward regexp nil t)
1281                 (re-search-backward regexp nil t))
1282         (match-beginning 0)))))
1283
1284 (defun org-babel-src-block-names (&optional file)
1285   "Returns the names of source blocks in FILE or the current buffer."
1286   (save-excursion
1287     (when file (find-file file)) (goto-char (point-min))
1288     (let (names)
1289       (while (re-search-forward org-babel-src-name-w-name-regexp nil t)
1290         (setq names (cons (match-string 4) names)))
1291       names)))
1292
1293 ;;;###autoload
1294 (defun org-babel-goto-named-result (name)
1295   "Go to a named result."
1296   (interactive
1297    (let ((completion-ignore-case t))
1298      (list (org-icompleting-read "source-block name: "
1299                                  (org-babel-result-names) nil t))))
1300   (let ((point (org-babel-find-named-result name)))
1301     (if point
1302         ;; taken from `org-open-at-point'
1303         (progn (goto-char point) (org-show-context))
1304       (message "result '%s' not found in this buffer" name))))
1305
1306 (defun org-babel-find-named-result (name)
1307   "Find a named result.
1308 Return the location of the result named NAME in the current
1309 buffer or nil if no such result exists."
1310   (save-excursion
1311     (goto-char (point-min))
1312     (when (re-search-forward
1313            (concat org-babel-result-regexp
1314                    "[ \t]" (regexp-quote name) "[ \t\n\f\v\r]") nil t)
1315       (beginning-of-line 0) (point))))
1316
1317 (defun org-babel-result-names (&optional file)
1318   "Returns the names of results in FILE or the current buffer."
1319   (save-excursion
1320     (when file (find-file file)) (goto-char (point-min))
1321     (let (names)
1322       (while (re-search-forward org-babel-result-w-name-regexp nil t)
1323         (setq names (cons (match-string 4) names)))
1324       names)))
1325
1326 ;;;###autoload
1327 (defun org-babel-next-src-block (&optional arg)
1328   "Jump to the next source block.
1329 With optional prefix argument ARG, jump forward ARG many source blocks."
1330   (interactive "P")
1331   (when (looking-at org-babel-src-block-regexp) (forward-char 1))
1332   (condition-case nil
1333       (re-search-forward org-babel-src-block-regexp nil nil (or arg 1))
1334     (error (error "No further code blocks")))
1335   (goto-char (match-beginning 0)) (org-show-context))
1336
1337 ;;;###autoload
1338 (defun org-babel-previous-src-block (&optional arg)
1339   "Jump to the previous source block.
1340 With optional prefix argument ARG, jump backward ARG many source blocks."
1341   (interactive "P")
1342   (condition-case nil
1343       (re-search-backward org-babel-src-block-regexp nil nil (or arg 1))
1344     (error (error "No previous code blocks")))
1345   (goto-char (match-beginning 0)) (org-show-context))
1346
1347 (defvar org-babel-load-languages)
1348
1349 ;;;###autoload
1350 (defun org-babel-mark-block ()
1351   "Mark current src block"
1352   (interactive)
1353   ((lambda (head)
1354      (when head
1355        (save-excursion
1356          (goto-char head)
1357          (looking-at org-babel-src-block-regexp))
1358        (push-mark (match-end 5) nil t)
1359        (goto-char (match-beginning 5))))
1360    (org-babel-where-is-src-block-head)))
1361
1362 (defun org-babel-demarcate-block (&optional arg)
1363   "Wrap or split the code in the region or on the point.
1364 When called from inside of a code block the current block is
1365 split.  When called from outside of a code block a new code block
1366 is created.  In both cases if the region is demarcated and if the
1367 region is not active then the point is demarcated."
1368   (interactive "P")
1369   (let ((info (org-babel-get-src-block-info 'light))
1370         (headers (progn (org-babel-where-is-src-block-head)
1371                         (match-string 4)))
1372         (stars (concat (make-string (or (org-current-level) 1) ?*) " ")))
1373     (if info
1374         (mapc
1375          (lambda (place)
1376            (save-excursion
1377              (goto-char place)
1378              (let ((lang (nth 0 info))
1379                    (indent (make-string (nth 5 info) ? )))
1380                (when (string-match "^[[:space:]]*$"
1381                                    (buffer-substring (point-at-bol)
1382                                                      (point-at-eol)))
1383                  (delete-region (point-at-bol) (point-at-eol)))
1384                (insert (concat
1385                         (if (looking-at "^") "" "\n")
1386                         indent "#+end_src\n"
1387                         (if arg stars indent) "\n"
1388                         indent "#+begin_src " lang
1389                         (if (> (length headers) 1)
1390                             (concat " " headers) headers)
1391                         (if (looking-at "[\n\r]")
1392                             ""
1393                           (concat "\n" (make-string (current-column) ? )))))))
1394            (move-end-of-line 2))
1395          (sort (if (region-active-p) (list (mark) (point)) (list (point))) #'>))
1396       (let ((start (point))
1397             (lang (org-icompleting-read "Lang: "
1398                                         (mapcar (lambda (el) (symbol-name (car el)))
1399                                                 org-babel-load-languages)))
1400             (body (delete-and-extract-region
1401                    (if (region-active-p) (mark) (point)) (point))))
1402         (insert (concat (if (looking-at "^") "" "\n")
1403                         (if arg (concat stars "\n") "")
1404                         "#+begin_src " lang "\n"
1405                         body
1406                         (if (or (= (length body) 0)
1407                                 (string-match "[\r\n]$" body)) "" "\n")
1408                         "#+end_src\n"))
1409         (goto-char start) (move-end-of-line 1)))))
1410
1411 (defvar org-babel-lob-one-liner-regexp)
1412 (defvar org-babel-inline-lob-one-liner-regexp)
1413 (defun org-babel-where-is-src-block-result (&optional insert info hash indent)
1414   "Find where the current source block results begin.
1415 Return the point at the beginning of the result of the current
1416 source block.  Specifically at the beginning of the results line.
1417 If no result exists for this block then create a results line
1418 following the source block."
1419   (save-excursion
1420     (let* ((on-lob-line (save-excursion
1421                           (beginning-of-line 1)
1422                           (looking-at org-babel-lob-one-liner-regexp)))
1423            (inlinep (when (org-babel-get-inline-src-block-matches)
1424                         (match-end 0)))
1425            (name (if on-lob-line
1426                      (nth 0 (org-babel-lob-get-info))
1427                    (nth 4 (or info (org-babel-get-src-block-info 'light)))))
1428            (head (unless on-lob-line (org-babel-where-is-src-block-head)))
1429            found beg end)
1430       (when head (goto-char head))
1431       (setq
1432        found ;; was there a result (before we potentially insert one)
1433        (or
1434         inlinep
1435         (and
1436          ;; named results:
1437          ;; - return t if it is found, else return nil
1438          ;; - if it does not need to be rebuilt, then don't set end
1439          ;; - if it does need to be rebuilt then do set end
1440          name (setq beg (org-babel-find-named-result name))
1441          (prog1 beg
1442            (when (and hash (not (string= hash (match-string 3))))
1443              (goto-char beg) (setq end beg) ;; beginning of result
1444              (forward-line 1)
1445              (delete-region end (org-babel-result-end)) nil)))
1446         (and
1447          ;; unnamed results:
1448          ;; - return t if it is found, else return nil
1449          ;; - if it is found, and the hash doesn't match, delete and set end
1450          (or on-lob-line (re-search-forward "^[ \t]*#\\+end_src" nil t))
1451          (progn (end-of-line 1)
1452                 (if (eobp) (insert "\n") (forward-char 1))
1453                 (setq end (point))
1454                 (or (and (not name)
1455                          (progn ;; unnamed results line already exists
1456                            (re-search-forward "[^ \f\t\n\r\v]" nil t)
1457                            (beginning-of-line 1)
1458                            (looking-at
1459                             (concat org-babel-result-regexp "\n")))
1460                          (prog1 (point)
1461                            ;; must remove and rebuild if hash!=old-hash
1462                            (if (and hash (not (string= hash (match-string 3))))
1463                                (prog1 nil
1464                                  (forward-line 1)
1465                                  (delete-region
1466                                   end (org-babel-result-end)))
1467                              (setq end nil)))))))))
1468       (if (and insert end)
1469           (progn
1470             (goto-char end)
1471             (unless beg
1472               (if (looking-at "[\n\r]") (forward-char 1) (insert "\n")))
1473             (insert (concat
1474                      (if indent
1475                          (mapconcat
1476                           (lambda (el) " ")
1477                           (org-number-sequence 1 indent) "")
1478                        "")
1479                      "#+results"
1480                      (when hash (concat "["hash"]"))
1481                      ":"
1482                      (when name (concat " " name)) "\n"))
1483             (unless beg (insert "\n") (backward-char))
1484             (beginning-of-line 0)
1485             (if hash (org-babel-hide-hash))
1486             (point))
1487         found))))
1488
1489 (defvar org-block-regexp)
1490 (defun org-babel-read-result ()
1491   "Read the result at `point' into emacs-lisp."
1492   (let ((case-fold-search t) result-string)
1493     (cond
1494      ((org-at-table-p) (org-babel-read-table))
1495      ((org-at-item-p) (org-babel-read-list))
1496      ((looking-at org-bracket-link-regexp) (org-babel-read-link))
1497      ((looking-at org-block-regexp) (org-babel-trim (match-string 4)))
1498      ((looking-at "^[ \t]*: ")
1499       (setq result-string
1500             (org-babel-trim
1501              (mapconcat (lambda (line)
1502                           (if (and (> (length line) 1)
1503                                    (string-match "^[ \t]*: \\(.+\\)" line))
1504                               (match-string 1 line)
1505                             line))
1506                         (split-string
1507                          (buffer-substring
1508                           (point) (org-babel-result-end)) "[\r\n]+")
1509                         "\n")))
1510       (or (org-babel-number-p result-string) result-string))
1511      ((looking-at org-babel-result-regexp)
1512       (save-excursion (forward-line 1) (org-babel-read-result))))))
1513
1514 (defun org-babel-read-table ()
1515   "Read the table at `point' into emacs-lisp."
1516   (mapcar (lambda (row)
1517             (if (and (symbolp row) (equal row 'hline)) row
1518               (mapcar (lambda (el) (org-babel-read el 'inhibit-lisp-eval)) row)))
1519           (org-table-to-lisp)))
1520
1521 (defun org-babel-read-list ()
1522   "Read the list at `point' into emacs-lisp."
1523   (mapcar (lambda (el) (org-babel-read el 'inhibit-lisp-eval))
1524           (mapcar #'cadr (cdr (org-list-parse-list)))))
1525
1526 (defvar org-link-types-re)
1527 (defun org-babel-read-link ()
1528   "Read the link at `point' into emacs-lisp.
1529 If the path of the link is a file path it is expanded using
1530 `expand-file-name'."
1531   (let* ((case-fold-search t)
1532          (raw (and (looking-at org-bracket-link-regexp)
1533                    (org-babel-clean-text-properties (match-string 1))))
1534          (type (and (string-match org-link-types-re raw)
1535                     (match-string 1 raw))))
1536     (cond
1537      ((not type) (expand-file-name raw))
1538      ((string= type "file")
1539       (and (string-match "file\\(.*\\):\\(.+\\)" raw)
1540            (expand-file-name (match-string 2 raw))))
1541      (t raw))))
1542
1543 (defun org-babel-format-result (result &optional sep)
1544   "Format RESULT for writing to file."
1545   (flet ((echo-res (result)
1546                    (if (stringp result) result (format "%S" result))))
1547     (if (listp result)
1548         ;; table result
1549         (orgtbl-to-generic
1550          result
1551          (list
1552           :sep (or sep "\t")
1553           :fmt 'echo-res))
1554       ;; scalar result
1555       (echo-res result))))
1556
1557 (defun org-babel-insert-result
1558   (result &optional result-params info hash indent lang)
1559   "Insert RESULT into the current buffer.
1560 By default RESULT is inserted after the end of the
1561 current source block.  With optional argument RESULT-PARAMS
1562 controls insertion of results in the org-mode file.
1563 RESULT-PARAMS can take the following values...
1564
1565 replace - (default option) insert results after the source block
1566           replacing any previously inserted results
1567
1568 silent -- no results are inserted
1569
1570 file ---- the results are interpreted as a file path, and are
1571           inserted into the buffer using the Org-mode file syntax
1572
1573 list ---- the results are interpreted as an Org-mode list.
1574
1575 raw ----- results are added directly to the Org-mode file.  This
1576           is a good option if you code block will output org-mode
1577           formatted text.
1578
1579 org ----- similar in effect to raw, only the results are wrapped
1580           in an org code block.  Similar to the raw option, on
1581           export the results will be interpreted as org-formatted
1582           text, however by wrapping the results in an org code
1583           block they can be replaced upon re-execution of the
1584           code block.
1585
1586 html ---- results are added inside of a #+BEGIN_HTML block.  This
1587           is a good option if you code block will output html
1588           formatted text.
1589
1590 latex --- results are added inside of a #+BEGIN_LATEX block.
1591           This is a good option if you code block will output
1592           latex formatted text.
1593
1594 code ---- the results are extracted in the syntax of the source
1595           code of the language being evaluated and are added
1596           inside of a #+BEGIN_SRC block with the source-code
1597           language set appropriately.  Note this relies on the
1598           optional LANG argument."
1599   (if (stringp result)
1600       (progn
1601         (setq result (org-babel-clean-text-properties result))
1602         (when (member "file" result-params)
1603           (setq result (org-babel-result-to-file result))))
1604     (unless (listp result) (setq result (format "%S" result))))
1605   (if (and result-params (member "silent" result-params))
1606       (progn
1607         (message (replace-regexp-in-string "%" "%%" (format "%S" result)))
1608         result)
1609     (save-excursion
1610       (let* ((inlinep
1611               (save-excursion
1612                 (when (or (org-babel-get-inline-src-block-matches)
1613                           (org-babel-get-lob-one-liner-matches))
1614                   (goto-char (match-end 0))
1615                   (insert (if (listp result) "\n" " "))
1616                   (point))))
1617              (existing-result (unless inlinep
1618                                 (org-babel-where-is-src-block-result
1619                                  t info hash indent)))
1620              (results-switches
1621               (cdr (assoc :results_switches (nth 2 info))))
1622              beg end)
1623         (when (and (stringp result)  ; ensure results end in a newline
1624                    (not inlinep)
1625                    (> (length result) 0)
1626                    (not (or (string-equal (substring result -1) "\n")
1627                             (string-equal (substring result -1) "\r"))))
1628           (setq result (concat result "\n")))
1629         (if (not existing-result)
1630             (setq beg (or inlinep (point)))
1631           (goto-char existing-result)
1632           (save-excursion
1633             (re-search-forward "#" nil t)
1634             (setq indent (- (current-column) 1)))
1635           (forward-line 1)
1636           (setq beg (point))
1637           (cond
1638            ((member "replace" result-params)
1639             (delete-region (point) (org-babel-result-end)))
1640            ((member "append" result-params)
1641             (goto-char (org-babel-result-end)) (setq beg (point-marker)))
1642            ((member "prepend" result-params)))) ; already there
1643         (setq results-switches
1644               (if results-switches (concat " " results-switches) ""))
1645         ;; insert results based on type
1646         (cond
1647          ;; do nothing for an empty result
1648          ((= (length result) 0))
1649          ;; insert a list if preferred
1650          ((member "list" result-params)
1651           (insert
1652            (org-babel-trim
1653             (org-list-to-generic
1654              (cons 'unordered
1655                    (mapcar
1656                     (lambda (el) (list nil (if (stringp el) el (format "%S" el))))
1657                     (if (listp result) result (list result))))
1658              '(:splicep nil :istart "- " :iend "\n")))
1659            "\n"))
1660          ;; assume the result is a table if it's not a string
1661          ((not (stringp result))
1662           (goto-char beg)
1663           (insert (concat (orgtbl-to-orgtbl
1664                            (if (or (eq 'hline (car result))
1665                                    (and (listp (car result))
1666                                         (listp (cdr (car result)))))
1667                                result (list result))
1668                            '(:fmt (lambda (cell) (format "%s" cell)))) "\n"))
1669           (goto-char beg) (when (org-at-table-p) (org-table-align)))
1670          ((member "file" result-params)
1671           (when inlinep (goto-char inlinep))
1672           (insert result))
1673          (t (goto-char beg) (insert result)))
1674         (when (listp result) (goto-char (org-table-end)))
1675         (setq end (point-marker))
1676         ;; possibly wrap result
1677         (flet ((wrap (start finish)
1678                      (goto-char beg) (insert (concat start "\n"))
1679                      (goto-char end) (insert (concat finish "\n"))
1680                      (setq end (point-marker))))
1681           (cond
1682            ((member "html" result-params)
1683             (wrap "#+BEGIN_HTML" "#+END_HTML"))
1684            ((member "latex" result-params)
1685             (wrap "#+BEGIN_LaTeX" "#+END_LaTeX"))
1686            ((member "code" result-params)
1687             (wrap (format "#+BEGIN_SRC %s%s" (or lang "none") results-switches)
1688                   "#+END_SRC"))
1689            ((member "org" result-params)
1690             (wrap "#+BEGIN_ORG" "#+END_ORG"))
1691            ((member "raw" result-params)
1692             (goto-char beg) (if (org-at-table-p) (org-cycle)))
1693            ((member "wrap" result-params)
1694             (when (and (stringp result) (not (member "file" result-params)))
1695               (org-babel-examplize-region beg end results-switches))
1696             (wrap "#+BEGIN_RESULT" "#+END_RESULT"))
1697            ((and (stringp result) (not (member "file" result-params)))
1698             (org-babel-examplize-region beg end results-switches)
1699             (setq end (point)))))
1700         ;; possibly indent the results to match the #+results line
1701         (when (and (not inlinep) (numberp indent) indent (> indent 0)
1702                    ;; in this case `table-align' does the work for us
1703                    (not (and (listp result)
1704                              (member "append" result-params))))
1705           (indent-rigidly beg end indent))))
1706     (if (= (length result) 0)
1707         (if (member "value" result-params)
1708             (message "Code block returned no value.")
1709           (message "Code block produced no output."))
1710       (message "Code block evaluation complete."))))
1711
1712 (defun org-babel-remove-result (&optional info)
1713   "Remove the result of the current source block."
1714   (interactive)
1715   (let ((location (org-babel-where-is-src-block-result nil info)) start)
1716     (when location
1717       (setq start (- location 1))
1718       (save-excursion
1719         (goto-char location) (forward-line 1)
1720         (delete-region start (org-babel-result-end))))))
1721
1722 (defun org-babel-result-end ()
1723   "Return the point at the end of the current set of results"
1724   (save-excursion
1725     (cond
1726      ((org-at-table-p) (progn (goto-char (org-table-end)) (point)))
1727      ((org-at-item-p) (let* ((struct (org-list-struct))
1728                              (prvs (org-list-prevs-alist struct)))
1729                         (org-list-get-list-end (point-at-bol) struct prvs)))
1730      (t
1731       (let ((case-fold-search t)
1732             (blocks-re (regexp-opt
1733                         (list "latex" "html" "example" "src" "result" "org"))))
1734         (if (looking-at (concat "[ \t]*#\\+begin_" blocks-re))
1735             (progn (re-search-forward (concat "[ \t]*#\\+end_" blocks-re) nil t)
1736                    (forward-char 1))
1737           (while (looking-at "[ \t]*\\(: \\|\\[\\[\\)")
1738             (forward-line 1))))
1739       (point)))))
1740
1741 (defun org-babel-result-to-file (result)
1742   "Convert RESULT into an `org-mode' link.
1743 If the `default-directory' is different from the containing
1744 file's directory then expand relative links."
1745   (flet ((cond-exp (file)
1746           (if (and default-directory
1747                    buffer-file-name
1748                    (not (string= (expand-file-name default-directory)
1749                                  (expand-file-name
1750                                   (file-name-directory buffer-file-name)))))
1751               (expand-file-name file default-directory)
1752             file)))
1753     (if (stringp result)
1754         (format "[[file:%s]]" (cond-exp result))
1755       (when (and (listp result) (= 2 (length result))
1756                  (stringp (car result)) (stringp (cadr result)))
1757         (format "[[file:%s][%s]]" (car result) (cadr result))))))
1758
1759 (defun org-babel-examplize-region (beg end &optional results-switches)
1760   "Comment out region using the inline '==' or ': ' org example quote."
1761   (interactive "*r")
1762   (flet ((chars-between (b e) (string-match "[\\S]" (buffer-substring b e))))
1763     (if (or (chars-between (save-excursion (goto-char beg) (point-at-bol)) beg)
1764             (chars-between end (save-excursion (goto-char end) (point-at-eol))))
1765         (save-excursion
1766           (goto-char beg)
1767           (insert (format "=%s=" (prog1 (buffer-substring beg end)
1768                                    (delete-region beg end)))))
1769       (let ((size (count-lines beg end)))
1770         (save-excursion
1771           (cond ((= size 0))          ; do nothing for an empty result
1772                 ((< size org-babel-min-lines-for-block-output)
1773                  (goto-char beg)
1774                  (dotimes (n size)
1775                    (beginning-of-line 1) (insert ": ") (forward-line 1)))
1776                 (t
1777                  (goto-char beg)
1778                  (insert (if results-switches
1779                              (format "#+begin_example%s\n" results-switches)
1780                            "#+begin_example\n"))
1781                  (if (markerp end) (goto-char end) (forward-char (- end beg)))
1782                  (insert "#+end_example\n"))))))))
1783
1784 (defun org-babel-update-block-body (new-body)
1785   "Update the body of the current code block to NEW-BODY."
1786   (if (not (org-babel-where-is-src-block-head))
1787       (error "not in source block")
1788     (save-match-data
1789       (replace-match (concat (org-babel-trim new-body) "\n") nil t nil 5))
1790     (indent-rigidly (match-beginning 5) (match-end 5) 2)))
1791
1792 (defun org-babel-merge-params (&rest plists)
1793   "Combine all parameter association lists in PLISTS.
1794 Later elements of PLISTS override the values of previous elements.
1795 This takes into account some special considerations for certain
1796 parameters when merging lists."
1797   (let ((results-exclusive-groups
1798          '(("file" "list" "vector" "table" "scalar" "verbatim" "raw" "org"
1799             "html" "latex" "code" "pp" "wrap")
1800            ("replace" "silent" "append" "prepend")
1801            ("output" "value")))
1802         (exports-exclusive-groups
1803          '(("code" "results" "both" "none")))
1804         (variable-index 0)
1805         params results exports tangle noweb cache vars shebang comments padline)
1806     (flet ((e-merge (exclusive-groups &rest result-params)
1807              ;; maintain exclusivity of mutually exclusive parameters
1808              (let (output)
1809                (mapc (lambda (new-params)
1810                        (mapc (lambda (new-param)
1811                                (mapc (lambda (exclusive-group)
1812                                        (when (member new-param exclusive-group)
1813                                          (mapcar (lambda (excluded-param)
1814                                                    (setq output
1815                                                          (delete
1816                                                           excluded-param
1817                                                           output)))
1818                                                  exclusive-group)))
1819                                      exclusive-groups)
1820                                (setq output (org-uniquify
1821                                              (cons new-param output))))
1822                              new-params))
1823                      result-params)
1824                output)))
1825       (mapc
1826        (lambda (plist)
1827          (mapc
1828           (lambda (pair)
1829             (case (car pair)
1830               (:var
1831                (let ((name (if (listp (cdr pair))
1832                                (cadr pair)
1833                              (and (string-match "^\\([^= \f\t\n\r\v]+\\)[ \t]*="
1834                                                 (cdr pair))
1835                                   (intern (match-string 1 (cdr pair)))))))
1836                  (if name
1837                      (setq vars
1838                            (append
1839                             (if (member name (mapcar #'car vars))
1840                                 (delq nil
1841                                       (mapcar
1842                                        (lambda (p)
1843                                          (unless (equal (car p) name) p))
1844                                        vars))
1845                               vars)
1846                             (list (cons name pair))))
1847                    ;; if no name is given and we already have named variables
1848                    ;; then assign to named variables in order
1849                    (if (and vars (nth variable-index vars))
1850                        (prog1 (setf (cddr (nth variable-index vars))
1851                                     (concat (symbol-name
1852                                              (car (nth variable-index vars)))
1853                                             "=" (cdr pair)))
1854                          (incf variable-index))
1855                      (error "variable \"%s\" must be assigned a default value"
1856                             (cdr pair))))))
1857               (:results
1858                (setq results (e-merge results-exclusive-groups
1859                                       results
1860                                       (split-string
1861                                        (let ((r (cdr pair)))
1862                                          (if (stringp r) r (eval r)))))))
1863               (:file
1864                (when (cdr pair)
1865                  (setq results (e-merge results-exclusive-groups
1866                                         results '("file")))
1867                  (unless (or (member "both" exports)
1868                              (member "none" exports)
1869                              (member "code" exports))
1870                    (setq exports (e-merge exports-exclusive-groups
1871                                           exports '("results"))))
1872                  (setq params (cons pair (assq-delete-all (car pair) params)))))
1873               (:exports
1874                (setq exports (e-merge exports-exclusive-groups
1875                                       exports (split-string (cdr pair)))))
1876               (:tangle ;; take the latest -- always overwrite
1877                (setq tangle (or (list (cdr pair)) tangle)))
1878               (:noweb
1879                (setq noweb (e-merge '(("yes" "no" "tangle")) noweb
1880                                     (split-string (or (cdr pair) "")))))
1881               (:cache
1882                (setq cache (e-merge '(("yes" "no")) cache
1883                                     (split-string (or (cdr pair) "")))))
1884               (:padline
1885                (setq padline (e-merge '(("yes" "no")) padline
1886                                       (split-string (or (cdr pair) "")))))
1887               (:shebang ;; take the latest -- always overwrite
1888                (setq shebang (or (list (cdr pair)) shebang)))
1889               (:comments
1890                (setq comments (e-merge '(("yes" "no")) comments
1891                                        (split-string (or (cdr pair) "")))))
1892               (t ;; replace: this covers e.g. :session
1893                (setq params (cons pair (assq-delete-all (car pair) params))))))
1894           plist))
1895        plists))
1896     (setq vars (reverse vars))
1897     (while vars (setq params (cons (cons :var (cddr (pop vars))) params)))
1898     (mapc
1899      (lambda (hd)
1900        (let ((key (intern (concat ":" (symbol-name hd))))
1901              (val (eval hd)))
1902          (setf params (cons (cons key (mapconcat 'identity val " ")) params))))
1903      '(results exports tangle noweb padline cache shebang comments))
1904     params))
1905
1906 (defun org-babel-expand-noweb-references (&optional info parent-buffer)
1907   "Expand Noweb references in the body of the current source code block.
1908
1909 For example the following reference would be replaced with the
1910 body of the source-code block named 'example-block'.
1911
1912 <<example-block>>
1913
1914 Note that any text preceding the <<foo>> construct on a line will
1915 be interposed between the lines of the replacement text.  So for
1916 example if <<foo>> is placed behind a comment, then the entire
1917 replacement text will also be commented.
1918
1919 This function must be called from inside of the buffer containing
1920 the source-code block which holds BODY.
1921
1922 In addition the following syntax can be used to insert the
1923 results of evaluating the source-code block named 'example-block'.
1924
1925 <<example-block()>>
1926
1927 Any optional arguments can be passed to example-block by placing
1928 the arguments inside the parenthesis following the convention
1929 defined by `org-babel-lob'.  For example
1930
1931 <<example-block(a=9)>>
1932
1933 would set the value of argument \"a\" equal to \"9\".  Note that
1934 these arguments are not evaluated in the current source-code
1935 block but are passed literally to the \"example-block\"."
1936   (let* ((parent-buffer (or parent-buffer (current-buffer)))
1937          (info (or info (org-babel-get-src-block-info)))
1938          (lang (nth 0 info))
1939          (body (nth 1 info))
1940          (comment (string= "noweb" (cdr (assoc :comments (nth 2 info)))))
1941          (new-body "") index source-name evaluate prefix blocks-in-buffer)
1942     (flet ((nb-add (text) (setq new-body (concat new-body text)))
1943            (c-wrap (text)
1944                    (with-temp-buffer
1945                      (funcall (intern (concat lang "-mode")))
1946                      (comment-region (point) (progn (insert text) (point)))
1947                      (org-babel-trim (buffer-string))))
1948            (blocks () ;; return the info lists of all blocks in this buffer
1949                    (let (infos)
1950                      (save-restriction
1951                        (widen)
1952                        (org-babel-map-src-blocks nil
1953                          (setq infos (cons (org-babel-get-src-block-info 'light)
1954                                            infos))))
1955                      (reverse infos))))
1956       (with-temp-buffer
1957         (insert body) (goto-char (point-min))
1958         (setq index (point))
1959         (while (and (re-search-forward "<<\\(.+?\\)>>" nil t))
1960           (save-match-data (setf source-name (match-string 1)))
1961           (save-match-data (setq evaluate (string-match "\(.*\)" source-name)))
1962           (save-match-data
1963             (setq prefix
1964                   (buffer-substring (match-beginning 0)
1965                                     (save-excursion
1966                                       (beginning-of-line 1) (point)))))
1967           ;; add interval to new-body (removing noweb reference)
1968           (goto-char (match-beginning 0))
1969           (nb-add (buffer-substring index (point)))
1970           (goto-char (match-end 0))
1971           (setq index (point))
1972           (nb-add
1973            (with-current-buffer parent-buffer
1974              (mapconcat ;; interpose PREFIX between every line
1975               #'identity
1976               (split-string
1977                (if evaluate
1978                    (let ((raw (org-babel-ref-resolve source-name)))
1979                      (if (stringp raw) raw (format "%S" raw)))
1980                  (or
1981                   ;; retrieve from the library of babel
1982                   (nth 2 (assoc (intern source-name)
1983                                 org-babel-library-of-babel))
1984                   ;; return the contents of headlines literally
1985                   (save-excursion
1986                     (when (org-babel-ref-goto-headline-id source-name)
1987                       (org-babel-ref-headline-body)))
1988                   ;; find the expansion of reference in this buffer
1989                   (mapconcat
1990                    (lambda (i)
1991                      (when (string= source-name
1992                                     (or (cdr (assoc :noweb-ref (nth 2 i)))
1993                                         (nth 4 i)))
1994                        (let ((body (org-babel-expand-noweb-references i)))
1995                          (if comment
1996                              ((lambda (cs)
1997                                 (concat (c-wrap (car cs)) "\n"
1998                                         body "\n" (c-wrap (cadr cs))))
1999                               (org-babel-tangle-comment-links i))
2000                            body))))
2001                    (or blocks-in-buffer
2002                        (setq blocks-in-buffer (blocks)))
2003                    "")
2004                   ;; possibly raise an error if named block doesn't exist
2005                   (if (member lang org-babel-noweb-error-langs)
2006                       (error "%s" (concat
2007                                    "<<" source-name ">> "
2008                                    "could not be resolved (see "
2009                                    "`org-babel-noweb-error-langs')"))
2010                     "")))
2011                "[\n\r]") (concat "\n" prefix)))))
2012         (nb-add (buffer-substring index (point-max)))))
2013     new-body))
2014
2015 (defun org-babel-clean-text-properties (text)
2016   "Strip all properties from text return."
2017   (when text
2018     (set-text-properties 0 (length text) nil text) text))
2019
2020 (defun org-babel-strip-protective-commas (body)
2021   "Strip protective commas from bodies of source blocks."
2022   (when body
2023     (replace-regexp-in-string "^,#" "#" body)))
2024
2025 (defun org-babel-script-escape (str &optional force)
2026   "Safely convert tables into elisp lists."
2027   (let (in-single in-double out)
2028     ((lambda (escaped) (condition-case nil (org-babel-read escaped) (error escaped)))
2029      (if (or force
2030              (and (stringp str)
2031                   (> (length str) 2)
2032                   (or (and (string-equal "[" (substring str 0 1))
2033                            (string-equal "]" (substring str -1)))
2034                       (and (string-equal "{" (substring str 0 1))
2035                            (string-equal "}" (substring str -1)))
2036                       (and (string-equal "(" (substring str 0 1))
2037                            (string-equal ")" (substring str -1))))))
2038          (org-babel-read
2039           (concat
2040            "'"
2041            (progn
2042              (mapc
2043               (lambda (ch)
2044                 (setq
2045                  out
2046                  (case ch
2047                    (91 (if (or in-double in-single) ; [
2048                            (cons 91 out)
2049                          (cons 40 out)))
2050                    (93 (if (or in-double in-single) ; ]
2051                            (cons 93 out)
2052                          (cons 41 out)))
2053                    (123 (if (or in-double in-single) ; {
2054                             (cons 123 out)
2055                           (cons 40 out)))
2056                    (125 (if (or in-double in-single) ; }
2057                             (cons 125 out)
2058                           (cons 41 out)))
2059                    (44 (if (or in-double in-single) ; ,
2060                            (cons 44 out) (cons 32 out)))
2061                    (39 (if in-double    ; '
2062                            (cons 39 out)
2063                          (setq in-single (not in-single)) (cons 34 out)))
2064                    (34 (if in-single    ; "
2065                            (append (list 34 32) out)
2066                          (setq in-double (not in-double)) (cons 34 out)))
2067                    (t  (cons ch out)))))
2068               (string-to-list str))
2069              (apply #'string (reverse out)))))
2070        str))))
2071
2072 (defun org-babel-read (cell &optional inhibit-lisp-eval)
2073   "Convert the string value of CELL to a number if appropriate.
2074 Otherwise if cell looks like lisp (meaning it starts with a
2075 \"(\", \"'\", \"`\" or a \"[\") then read it as lisp, otherwise
2076 return it unmodified as a string.  Optional argument NO-LISP-EVAL
2077 inhibits lisp evaluation for situations in which is it not
2078 appropriate."
2079   (if (and (stringp cell) (not (equal cell "")))
2080       (or (org-babel-number-p cell)
2081           (if (and (not inhibit-lisp-eval)
2082                    (member (substring cell 0 1) '("(" "'" "`" "[")))
2083               (eval (read cell))
2084             (if (string= (substring cell 0 1) "\"")
2085                 (read cell)
2086               (progn (set-text-properties 0 (length cell) nil cell) cell))))
2087     cell))
2088
2089 (defun org-babel-number-p (string)
2090   "If STRING represents a number return it's value."
2091   (if (and (string-match "^-?[0-9]*\\.?[0-9]*$" string)
2092            (= (length (substring string (match-beginning 0)
2093                                  (match-end 0)))
2094               (length string)))
2095       (string-to-number string)))
2096
2097 (defun org-babel-import-elisp-from-file (file-name &optional separator)
2098   "Read the results located at FILE-NAME into an elisp table.
2099 If the table is trivial, then return it as a scalar."
2100   (let (result)
2101     (save-window-excursion
2102       (with-temp-buffer
2103         (condition-case nil
2104             (progn
2105               (org-table-import file-name separator)
2106               (delete-file file-name)
2107               (setq result (mapcar (lambda (row)
2108                                      (mapcar #'org-babel-string-read row))
2109                                    (org-table-to-lisp))))
2110           (error nil)))
2111       (if (null (cdr result)) ;; if result is trivial vector, then scalarize it
2112           (if (consp (car result))
2113               (if (null (cdr (car result)))
2114                   (caar result)
2115                 result)
2116             (car result))
2117         result))))
2118
2119 (defun org-babel-string-read (cell)
2120   "Strip nested \"s from around strings."
2121   (org-babel-read (or (and (stringp cell)
2122                            (string-match "\\\"\\(.+\\)\\\"" cell)
2123                            (match-string 1 cell))
2124                       cell)))
2125
2126 (defun org-babel-reverse-string (string)
2127   "Return the reverse of STRING."
2128   (apply 'string (reverse (string-to-list string))))
2129
2130 (defun org-babel-chomp (string &optional regexp)
2131   "Strip trailing spaces and carriage returns from STRING.
2132 Default regexp used is \"[ \f\t\n\r\v]\" but can be
2133 overwritten by specifying a regexp as a second argument."
2134   (let ((regexp (or regexp "[ \f\t\n\r\v]")))
2135     (while (and (> (length string) 0)
2136                 (string-match regexp (substring string -1)))
2137       (setq string (substring string 0 -1)))
2138     string))
2139
2140 (defun org-babel-trim (string &optional regexp)
2141   "Strip leading and trailing spaces and carriage returns from STRING.
2142 Like `org-babel-chomp' only it runs on both the front and back
2143 of the string."
2144   (org-babel-chomp (org-babel-reverse-string
2145                     (org-babel-chomp (org-babel-reverse-string string) regexp))
2146                    regexp))
2147
2148 (defvar org-babel-org-babel-call-process-region-original nil)
2149 (defun org-babel-tramp-handle-call-process-region
2150   (start end program &optional delete buffer display &rest args)
2151   "Use tramp to handle call-process-region.
2152 Fixes a bug in `tramp-handle-call-process-region'."
2153   (if (and (featurep 'tramp) (file-remote-p default-directory))
2154       (let ((tmpfile (tramp-compat-make-temp-file "")))
2155         (write-region start end tmpfile)
2156         (when delete (delete-region start end))
2157         (unwind-protect
2158             ;;  (apply 'call-process program tmpfile buffer display args)
2159             ;; bug in tramp
2160             (apply 'process-file program tmpfile buffer display args)
2161           (delete-file tmpfile)))
2162     ;; org-babel-call-process-region-original is the original emacs
2163     ;; definition. It is in scope from the let binding in
2164     ;; org-babel-execute-src-block
2165     (apply org-babel-call-process-region-original
2166            start end program delete buffer display args)))
2167
2168 (defun org-babel-local-file-name (file)
2169   "Return the local name component of FILE."
2170   (if (file-remote-p file)
2171       (let (localname)
2172         (with-parsed-tramp-file-name file nil
2173           localname))
2174     file))
2175
2176 (defun org-babel-process-file-name (name &optional no-quote-p)
2177   "Prepare NAME to be used in an external process.
2178 If NAME specifies a remote location, the remote portion of the
2179 name is removed, since in that case the process will be executing
2180 remotely. The file name is then processed by
2181 `expand-file-name'. Unless second argument NO-QUOTE-P is non-nil,
2182 the file name is additionally processed by
2183 `shell-quote-argument'"
2184   ((lambda (f) (if no-quote-p f (shell-quote-argument f)))
2185    (expand-file-name (org-babel-local-file-name name))))
2186
2187 (defvar org-babel-temporary-directory)
2188 (unless (or noninteractive (boundp 'org-babel-temporary-directory))
2189   (defvar org-babel-temporary-directory
2190     (or (and (boundp 'org-babel-temporary-directory)
2191              (file-exists-p org-babel-temporary-directory)
2192              org-babel-temporary-directory)
2193         (make-temp-file "babel-" t))
2194     "Directory to hold temporary files created to execute code blocks.
2195 Used by `org-babel-temp-file'.  This directory will be removed on
2196 Emacs shutdown."))
2197
2198 (defun org-babel-temp-file (prefix &optional suffix)
2199   "Create a temporary file in the `org-babel-temporary-directory'.
2200 Passes PREFIX and SUFFIX directly to `make-temp-file' with the
2201 value of `temporary-file-directory' temporarily set to the value
2202 of `org-babel-temporary-directory'."
2203   (if (file-remote-p default-directory)
2204       (make-temp-file
2205        (concat (file-remote-p default-directory)
2206                (expand-file-name
2207                 prefix temporary-file-directory)
2208                nil suffix))
2209     (let ((temporary-file-directory
2210            (or (and (boundp 'org-babel-temporary-directory)
2211                     (file-exists-p org-babel-temporary-directory)
2212                     org-babel-temporary-directory)
2213                temporary-file-directory)))
2214       (make-temp-file prefix nil suffix))))
2215
2216 (defun org-babel-remove-temporary-directory ()
2217   "Remove `org-babel-temporary-directory' on Emacs shutdown."
2218   (when (and (boundp 'org-babel-temporary-directory)
2219              (file-exists-p org-babel-temporary-directory))
2220     ;; taken from `delete-directory' in files.el
2221     (condition-case nil
2222         (progn
2223           (mapc (lambda (file)
2224                   ;; This test is equivalent to
2225                   ;; (and (file-directory-p fn) (not (file-symlink-p fn)))
2226                   ;; but more efficient
2227                   (if (eq t (car (file-attributes file)))
2228                       (delete-directory file)
2229                     (delete-file file)))
2230                 ;; We do not want to delete "." and "..".
2231                 (directory-files org-babel-temporary-directory 'full
2232                                  "^\\([^.]\\|\\.\\([^.]\\|\\..\\)\\).*"))
2233           (delete-directory org-babel-temporary-directory))
2234       (error
2235        (message "Failed to remove temporary Org-babel directory %s"
2236                 (if (boundp 'org-babel-temporary-directory)
2237                     org-babel-temporary-directory
2238                   "[directory not defined]"))))))
2239
2240 (add-hook 'kill-emacs-hook 'org-babel-remove-temporary-directory)
2241
2242 (provide 'ob)
2243
2244
2245
2246 ;;; ob.el ends here