Merge from emacs-24; up to 2012-12-26T22:30:58Z!yamaoka@jpl.org
[bpt/emacs.git] / lisp / org / ob.el
CommitLineData
86fbb8ca
CD
1;;; ob.el --- working with code blocks in org-mode
2
ab422c4d 3;; Copyright (C) 2009-2013 Free Software Foundation, Inc.
86fbb8ca 4
dfd98937 5;; Authors: Eric Schulte
c7557a0f 6;; Dan Davison
86fbb8ca
CD
7;; Keywords: literate programming, reproducible research
8;; Homepage: http://orgmode.org
86fbb8ca
CD
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
86fbb8ca 25;;; Code:
eeb4145e 26(eval-when-compile
e720ae53 27 (require 'cl))
acedf35c 28(require 'ob-eval)
86fbb8ca 29(require 'org-macs)
8223b1d2 30(require 'org-compat)
86fbb8ca 31
8223b1d2
BG
32(defconst org-babel-exeext
33 (if (memq system-type '(windows-nt cygwin))
34 ".exe"
35 nil))
86fbb8ca 36(defvar org-babel-call-process-region-original)
3ab2c837
BG
37(defvar org-src-lang-modes)
38(defvar org-babel-library-of-babel)
86fbb8ca 39(declare-function show-all "outline" ())
e66ba1df 40(declare-function org-reduce "org" (CL-FUNC CL-SEQ &rest CL-KEYS))
8223b1d2 41(declare-function org-mark-ring-push "org" (&optional pos buffer))
f1eee0b6
GM
42(declare-function tramp-compat-make-temp-file "tramp-compat"
43 (filename &optional dir-flag))
86fbb8ca
CD
44(declare-function tramp-dissect-file-name "tramp" (name &optional nodefault))
45(declare-function tramp-file-name-user "tramp" (vec))
46(declare-function tramp-file-name-host "tramp" (vec))
afe98dfa 47(declare-function with-parsed-tramp-file-name "tramp" (filename var &rest body))
86fbb8ca 48(declare-function org-icompleting-read "org" (&rest args))
acedf35c 49(declare-function org-edit-src-code "org-src"
afe98dfa
CD
50 (&optional context code edit-buffer-name quietp))
51(declare-function org-edit-src-exit "org-src" (&optional context))
86fbb8ca 52(declare-function org-open-at-point "org" (&optional in-emacs reference-buffer))
8223b1d2 53(declare-function org-save-outline-visibility "org-macs" (use-markers &rest body))
afe98dfa
CD
54(declare-function org-outline-overlay-data "org" (&optional use-markers))
55(declare-function org-set-outline-overlay-data "org" (data))
86fbb8ca 56(declare-function org-narrow-to-subtree "org" ())
afe98dfa
CD
57(declare-function org-entry-get "org"
58 (pom property &optional inherit literal-nil))
86fbb8ca 59(declare-function org-make-options-regexp "org" (kwds &optional extra))
86fbb8ca
CD
60(declare-function org-do-remove-indentation "org" (&optional n))
61(declare-function org-show-context "org" (&optional key))
62(declare-function org-at-table-p "org" (&optional table-type))
63(declare-function org-cycle "org" (&optional arg))
64(declare-function org-uniquify "org" (list))
afe98dfa 65(declare-function org-current-level "org" ())
f1eee0b6 66(declare-function org-table-import "org-table" (file arg))
afe98dfa
CD
67(declare-function org-add-hook "org-compat"
68 (hook function &optional append local))
86fbb8ca
CD
69(declare-function org-table-align "org-table" ())
70(declare-function org-table-end "org-table" (&optional table-type))
71(declare-function orgtbl-to-generic "org-table" (table params))
72(declare-function orgtbl-to-orgtbl "org-table" (table params))
3ab2c837 73(declare-function org-babel-tangle-comment-links "ob-tangle" (&optional info))
86fbb8ca
CD
74(declare-function org-babel-lob-get-info "ob-lob" nil)
75(declare-function org-babel-ref-split-args "ob-ref" (arg-string))
afe98dfa
CD
76(declare-function org-babel-ref-parse "ob-ref" (assignment))
77(declare-function org-babel-ref-resolve "ob-ref" (ref))
3ab2c837
BG
78(declare-function org-babel-ref-goto-headline-id "ob-ref" (id))
79(declare-function org-babel-ref-headline-body "ob-ref" ())
afe98dfa
CD
80(declare-function org-babel-lob-execute-maybe "ob-lob" ())
81(declare-function org-number-sequence "org-compat" (from &optional to inc))
3ab2c837 82(declare-function org-at-item-p "org-list" ())
acedf35c
CD
83(declare-function org-list-parse-list "org-list" (&optional delete))
84(declare-function org-list-to-generic "org-list" (LIST PARAMS))
3ab2c837
BG
85(declare-function org-list-struct "org-list" ())
86(declare-function org-list-prevs-alist "org-list" (struct))
87(declare-function org-list-get-list-end "org-list" (item struct prevs))
8223b1d2
BG
88(declare-function org-remove-if "org" (predicate seq))
89(declare-function org-completing-read "org" (&rest args))
bdebdb64
BG
90(declare-function org-escape-code-in-region "org-src" (beg end))
91(declare-function org-unescape-code-in-string "org-src" (s))
92(declare-function org-table-to-lisp "org-table" (&optional txt))
86fbb8ca
CD
93
94(defgroup org-babel nil
95 "Code block evaluation and management in `org-mode' documents."
96 :tag "Babel"
97 :group 'org)
98
99(defcustom org-confirm-babel-evaluate t
100 "Confirm before evaluation.
101Require confirmation before interactively evaluating code
102blocks in Org-mode buffers. The default value of this variable
103is t, meaning confirmation is required for any code block
104evaluation. This variable can be set to nil to inhibit any
105future confirmation requests. This variable can also be set to a
106function which takes two arguments the language of the code block
107and the body of the code block. Such a function should then
108return a non-nil value if the user should be prompted for
109execution or nil if no prompt is required.
110
111Warning: Disabling confirmation may result in accidental
112evaluation of potentially harmful code. It may be advisable
113remove code block execution from C-c C-c as further protection
114against accidental code block evaluation. The
115`org-babel-no-eval-on-ctrl-c-ctrl-c' variable can be used to
116remove code block execution from the C-c C-c keybinding."
8223b1d2
BG
117 :group 'org-babel
118 :version "24.1"
119 :type '(choice boolean function))
86fbb8ca
CD
120;; don't allow this variable to be changed through file settings
121(put 'org-confirm-babel-evaluate 'safe-local-variable (lambda (x) (eq x t)))
122
123(defcustom org-babel-no-eval-on-ctrl-c-ctrl-c nil
124 "Remove code block evaluation from the C-c C-c key binding."
125 :group 'org-babel
372d7b21 126 :version "24.1"
86fbb8ca
CD
127 :type 'boolean)
128
153ae947
BG
129(defcustom org-babel-results-keyword "RESULTS"
130 "Keyword used to name results generated by code blocks.
131Should be either RESULTS or NAME however any capitalization may
132be used."
133 :group 'org-babel
134 :type 'string)
135
8223b1d2
BG
136(defcustom org-babel-noweb-wrap-start "<<"
137 "String used to begin a noweb reference in a code block.
138See also `org-babel-noweb-wrap-end'."
139 :group 'org-babel
140 :type 'string)
141
142(defcustom org-babel-noweb-wrap-end ">>"
143 "String used to end a noweb reference in a code block.
144See also `org-babel-noweb-wrap-start'."
145 :group 'org-babel
146 :type 'string)
147
148(defun org-babel-noweb-wrap (&optional regexp)
149 (concat org-babel-noweb-wrap-start
150 (or regexp "\\([^ \t\n].+?[^ \t]\\|[^ \t\n]\\)")
151 org-babel-noweb-wrap-end))
152
86fbb8ca 153(defvar org-babel-src-name-regexp
e66ba1df 154 "^[ \t]*#\\+name:[ \t]*"
86fbb8ca
CD
155 "Regular expression used to match a source name line.")
156
afe98dfa
CD
157(defvar org-babel-multi-line-header-regexp
158 "^[ \t]*#\\+headers?:[ \t]*\\([^\n]*\\)$"
159 "Regular expression used to match multi-line header arguments.")
160
86fbb8ca
CD
161(defvar org-babel-src-name-w-name-regexp
162 (concat org-babel-src-name-regexp
afe98dfa
CD
163 "\\("
164 org-babel-multi-line-header-regexp
165 "\\)*"
86fbb8ca
CD
166 "\\([^ ()\f\t\n\r\v]+\\)\\(\(\\(.*\\)\)\\|\\)")
167 "Regular expression matching source name lines with a name.")
168
169(defvar org-babel-src-block-regexp
170 (concat
3ab2c837 171 ;; (1) indentation (2) lang
86fbb8ca
CD
172 "^\\([ \t]*\\)#\\+begin_src[ \t]+\\([^ \f\t\n\r\v]+\\)[ \t]*"
173 ;; (3) switches
174 "\\([^\":\n]*\"[^\"\n*]*\"[^\":\n]*\\|[^\":\n]*\\)"
175 ;; (4) header arguments
176 "\\([^\n]*\\)\n"
177 ;; (5) body
9a70f03d 178 "\\([^\000]*?\n\\)?[ \t]*#\\+end_src")
86fbb8ca
CD
179 "Regexp used to identify code blocks.")
180
181(defvar org-babel-inline-src-block-regexp
182 (concat
183 ;; (1) replacement target (2) lang
e66ba1df 184 "\\(?:^\\|[^-[:alnum:]]\\)\\(src_\\([^ \f\t\n\r\v]+\\)"
86fbb8ca
CD
185 ;; (3,4) (unused, headers)
186 "\\(\\|\\[\\(.*?\\)\\]\\)"
187 ;; (5) body
188 "{\\([^\f\n\r\v]+?\\)}\\)")
189 "Regexp used to identify inline src-blocks.")
190
afe98dfa
CD
191(defun org-babel-get-header (params key &optional others)
192 "Select only header argument of type KEY from a list.
193Optional argument OTHERS indicates that only the header that do
194not match KEY should be returned."
195 (delq nil
196 (mapcar
197 (lambda (p) (when (funcall (if others #'not #'identity) (eq (car p) key)) p))
198 params)))
199
e66ba1df
BG
200(defun org-babel-get-inline-src-block-matches()
201 "Set match data if within body of an inline source block.
202Returns non-nil if match-data set"
203 (let ((src-at-0-p (save-excursion
204 (beginning-of-line 1)
205 (string= "src" (thing-at-point 'word))))
206 (first-line-p (= 1 (line-number-at-pos)))
207 (orig (point)))
208 (let ((search-for (cond ((and src-at-0-p first-line-p "src_"))
153ae947
BG
209 (first-line-p "[[:punct:] \t]src_")
210 (t "[[:punct:] \f\t\n\r\v]src_")))
e66ba1df
BG
211 (lower-limit (if first-line-p
212 nil
213 (- (point-at-bol) 1))))
214 (save-excursion
215 (when (or (and src-at-0-p (bobp))
216 (and (re-search-forward "}" (point-at-eol) t)
217 (re-search-backward search-for lower-limit t)
218 (> orig (point))))
219 (when (looking-at org-babel-inline-src-block-regexp)
220 t ))))))
221
222(defvar org-babel-inline-lob-one-liner-regexp)
223(defun org-babel-get-lob-one-liner-matches()
224 "Set match data if on line of an lob one liner.
225Returns non-nil if match-data set"
226 (save-excursion
227 (unless (= (point) (point-at-bol)) ;; move before inline block
228 (re-search-backward "[ \f\t\n\r\v]" nil t))
229 (if (looking-at org-babel-inline-lob-one-liner-regexp)
230 t
231 nil)))
232
afe98dfa 233(defun org-babel-get-src-block-info (&optional light)
86fbb8ca
CD
234 "Get information on the current source block.
235
afe98dfa
CD
236Optional argument LIGHT does not resolve remote variable
237references; a process which could likely result in the execution
238of other code blocks.
239
86fbb8ca 240Returns a list
afe98dfa
CD
241 (language body header-arguments-alist switches name indent)."
242 (let ((case-fold-search t) head info name indent)
243 ;; full code block
86fbb8ca 244 (if (setq head (org-babel-where-is-src-block-head))
afe98dfa 245 (save-excursion
86fbb8ca
CD
246 (goto-char head)
247 (setq info (org-babel-parse-src-block-match))
248 (setq indent (car (last info)))
249 (setq info (butlast info))
afe98dfa
CD
250 (while (and (forward-line -1)
251 (looking-at org-babel-multi-line-header-regexp))
252 (setf (nth 2 info)
253 (org-babel-merge-params
3ab2c837
BG
254 (nth 2 info)
255 (org-babel-parse-header-arguments (match-string 1)))))
afe98dfa 256 (when (looking-at org-babel-src-name-w-name-regexp)
8223b1d2 257 (setq name (org-no-properties (match-string 3)))
e66ba1df 258 (when (and (match-string 5) (> (length (match-string 5)) 0))
afe98dfa
CD
259 (setf (nth 2 info) ;; merge functional-syntax vars and header-args
260 (org-babel-merge-params
e66ba1df
BG
261 (mapcar
262 (lambda (ref) (cons :var ref))
263 (mapcar
264 (lambda (var) ;; check that each variable is initialized
265 (if (string-match ".+=.+" var)
266 var
267 (error
268 "variable \"%s\"%s must be assigned a default value"
269 var (if name (format " in block \"%s\"" name) ""))))
270 (org-babel-ref-split-args (match-string 5))))
afe98dfa
CD
271 (nth 2 info))))))
272 ;; inline source block
e66ba1df 273 (when (org-babel-get-inline-src-block-matches)
afe98dfa
CD
274 (setq info (org-babel-parse-inline-src-block-match))))
275 ;; resolve variable references and add summary parameters
276 (when (and info (not light))
277 (setf (nth 2 info) (org-babel-process-params (nth 2 info))))
278 (when info (append info (list name indent)))))
86fbb8ca 279
e66ba1df 280(defvar org-current-export-file) ; dynamically bound
86fbb8ca
CD
281(defun org-babel-confirm-evaluate (info)
282 "Confirm evaluation of the code block INFO.
283This behavior can be suppressed by setting the value of
284`org-confirm-babel-evaluate' to nil, in which case all future
285interactive code block evaluations will proceed without any
286confirmation from the user.
287
288Note disabling confirmation may result in accidental evaluation
289of potentially harmful code."
afe98dfa
CD
290 (let* ((eval (or (cdr (assoc :eval (nth 2 info)))
291 (when (assoc :noeval (nth 2 info)) "no")))
3ab2c837 292 (query (cond ((equal eval "query") t)
8223b1d2
BG
293 ((and (boundp 'org-current-export-file)
294 org-current-export-file
e66ba1df 295 (equal eval "query-export")) t)
3ab2c837
BG
296 ((functionp org-confirm-babel-evaluate)
297 (funcall org-confirm-babel-evaluate
298 (nth 0 info) (nth 1 info)))
299 (t org-confirm-babel-evaluate))))
afe98dfa 300 (if (or (equal eval "never") (equal eval "no")
8223b1d2
BG
301 (and (boundp 'org-current-export-file)
302 org-current-export-file
303 (or (equal eval "no-export")
304 (equal eval "never-export")))
afe98dfa
CD
305 (and query
306 (not (yes-or-no-p
acedf35c
CD
307 (format "Evaluate this%scode block%son your system? "
308 (if info (format " %s " (nth 0 info)) " ")
309 (if (nth 4 info)
310 (format " (%s) " (nth 4 info)) " "))))))
311 (prog1 nil (message "Evaluation %s"
e66ba1df
BG
312 (if (or (equal eval "never") (equal eval "no")
313 (equal eval "no-export")
314 (equal eval "never-export"))
acedf35c 315 "Disabled" "Aborted")))
afe98dfa 316 t)))
86fbb8ca
CD
317
318;;;###autoload
afe98dfa
CD
319(defun org-babel-execute-safely-maybe ()
320 (unless org-babel-no-eval-on-ctrl-c-ctrl-c
321 (org-babel-execute-maybe)))
322
323(add-hook 'org-ctrl-c-ctrl-c-hook 'org-babel-execute-safely-maybe)
324
325;;;###autoload
326(defun org-babel-execute-maybe ()
327 (interactive)
328 (or (org-babel-execute-src-block-maybe)
329 (org-babel-lob-execute-maybe)))
330
86fbb8ca
CD
331(defun org-babel-execute-src-block-maybe ()
332 "Conditionally execute a source block.
333Detect if this is context for a Babel src-block and if so
334then run `org-babel-execute-src-block'."
335 (interactive)
afe98dfa
CD
336 (let ((info (org-babel-get-src-block-info)))
337 (if info
acedf35c
CD
338 (progn (org-babel-eval-wipe-error-buffer)
339 (org-babel-execute-src-block current-prefix-arg info) t) nil)))
86fbb8ca 340
3ab2c837
BG
341;;;###autoload
342(defun org-babel-view-src-block-info ()
343 "Display information on the current source block.
344This includes header arguments, language and name, and is largely
345a window into the `org-babel-get-src-block-info' function."
346 (interactive)
8223b1d2
BG
347 (let ((info (org-babel-get-src-block-info 'light))
348 (full (lambda (it) (> (length it) 0)))
349 (printf (lambda (fmt &rest args) (princ (apply #'format fmt args)))))
350 (when info
351 (with-help-window (help-buffer)
352 (let ((name (nth 4 info))
353 (lang (nth 0 info))
354 (switches (nth 3 info))
355 (header-args (nth 2 info)))
356 (when name (funcall printf "Name: %s\n" name))
357 (when lang (funcall printf "Lang: %s\n" lang))
358 (when (funcall full switches) (funcall printf "Switches: %s\n" switches))
359 (funcall printf "Header Arguments:\n")
360 (dolist (pair (sort header-args
361 (lambda (a b) (string< (symbol-name (car a))
362 (symbol-name (car b))))))
363 (when (funcall full (cdr pair))
364 (funcall printf "\t%S%s\t%s\n"
365 (car pair)
366 (if (> (length (format "%S" (car pair))) 7) "" "\t")
367 (cdr pair)))))))))
3ab2c837 368
86fbb8ca
CD
369;;;###autoload
370(defun org-babel-expand-src-block-maybe ()
371 "Conditionally expand a source block.
372Detect if this is context for a org-babel src-block and if so
373then run `org-babel-expand-src-block'."
374 (interactive)
375 (let ((info (org-babel-get-src-block-info)))
376 (if info
377 (progn (org-babel-expand-src-block current-prefix-arg info) t)
378 nil)))
379
380;;;###autoload
381(defun org-babel-load-in-session-maybe ()
382 "Conditionally load a source block in a session.
383Detect if this is context for a org-babel src-block and if so
384then run `org-babel-load-in-session'."
385 (interactive)
386 (let ((info (org-babel-get-src-block-info)))
387 (if info
388 (progn (org-babel-load-in-session current-prefix-arg info) t)
389 nil)))
390
391(add-hook 'org-metaup-hook 'org-babel-load-in-session-maybe)
392
393;;;###autoload
394(defun org-babel-pop-to-session-maybe ()
395 "Conditionally pop to a session.
396Detect if this is context for a org-babel src-block and if so
397then run `org-babel-pop-to-session'."
398 (interactive)
399 (let ((info (org-babel-get-src-block-info)))
400 (if info (progn (org-babel-pop-to-session current-prefix-arg info) t) nil)))
401
402(add-hook 'org-metadown-hook 'org-babel-pop-to-session-maybe)
403
e66ba1df
BG
404(defconst org-babel-common-header-args-w-values
405 '((cache . ((no yes)))
406 (cmdline . :any)
407 (colnames . ((nil no yes)))
408 (comments . ((no link yes org both noweb)))
409 (dir . :any)
410 (eval . ((never query)))
411 (exports . ((code results both none)))
412 (file . :any)
8223b1d2 413 (file-desc . :any)
e66ba1df
BG
414 (hlines . ((no yes)))
415 (mkdirp . ((yes no)))
416 (no-expand)
417 (noeval)
8223b1d2 418 (noweb . ((yes no tangle no-export strip-export)))
e66ba1df 419 (noweb-ref . :any)
153ae947 420 (noweb-sep . :any)
e66ba1df
BG
421 (padline . ((yes no)))
422 (results . ((file list vector table scalar verbatim)
8223b1d2
BG
423 (raw html latex org code pp drawer)
424 (replace silent append prepend)
425 (output value)))
e66ba1df
BG
426 (rownames . ((no yes)))
427 (sep . :any)
428 (session . :any)
429 (shebang . :any)
430 (tangle . ((tangle yes no :any)))
8223b1d2
BG
431 (var . :any)
432 (wrap . :any)))
e66ba1df 433
86fbb8ca 434(defconst org-babel-header-arg-names
e66ba1df 435 (mapcar #'car org-babel-common-header-args-w-values)
86fbb8ca
CD
436 "Common header arguments used by org-babel.
437Note that individual languages may define their own language
438specific header arguments as well.")
439
440(defvar org-babel-default-header-args
441 '((:session . "none") (:results . "replace") (:exports . "code")
3ab2c837
BG
442 (:cache . "no") (:noweb . "no") (:hlines . "no") (:tangle . "no")
443 (:padnewline . "yes"))
86fbb8ca
CD
444 "Default arguments to use when evaluating a source block.")
445
446(defvar org-babel-default-inline-header-args
3ab2c837 447 '((:session . "none") (:results . "replace") (:exports . "results"))
86fbb8ca
CD
448 "Default arguments to use when evaluating an inline source block.")
449
8223b1d2 450(defvar org-babel-data-names '("tblname" "results" "name"))
86fbb8ca
CD
451
452(defvar org-babel-result-regexp
3ab2c837
BG
453 (concat "^[ \t]*#\\+"
454 (regexp-opt org-babel-data-names t)
455 "\\(\\[\\([[:alnum:]]+\\)\\]\\)?\\:[ \t]*")
86fbb8ca
CD
456 "Regular expression used to match result lines.
457If the results are associated with a hash key then the hash will
458be saved in the second match data.")
459
460(defvar org-babel-result-w-name-regexp
461 (concat org-babel-result-regexp
462 "\\([^ ()\f\t\n\r\v]+\\)\\(\(\\(.*\\)\)\\|\\)"))
463
464(defvar org-babel-min-lines-for-block-output 10
465 "The minimum number of lines for block output.
466If number of lines of output is equal to or exceeds this
467value, the output is placed in a #+begin_example...#+end_example
8223b1d2
BG
468block. Otherwise the output is marked as literal by inserting
469colons at the starts of the lines. This variable only takes
86fbb8ca
CD
470effect if the :results output option is in effect.")
471
472(defvar org-babel-noweb-error-langs nil
473 "Languages for which Babel will raise literate programming errors.
474List of languages for which errors should be raised when the
475source code block satisfying a noweb reference in this language
476can not be resolved.")
477
478(defvar org-babel-hash-show 4
479 "Number of initial characters to show of a hidden results hash.")
480
481(defvar org-babel-after-execute-hook nil
482 "Hook for functions to be called after `org-babel-execute-src-block'")
e66ba1df 483
86fbb8ca
CD
484(defun org-babel-named-src-block-regexp-for-name (name)
485 "This generates a regexp used to match a src block named NAME."
e66ba1df 486 (concat org-babel-src-name-regexp (regexp-quote name)
8223b1d2 487 "[ \t(]*[\r\n]\\(?:^#.*[\r\n]\\)*"
86fbb8ca
CD
488 (substring org-babel-src-block-regexp 1)))
489
e66ba1df
BG
490(defun org-babel-named-data-regexp-for-name (name)
491 "This generates a regexp used to match data named NAME."
492 (concat org-babel-result-regexp (regexp-quote name) "\\([ \t]\\|$\\)"))
493
86fbb8ca
CD
494;;; functions
495(defvar call-process-region)
afe98dfa 496
bdebdb64 497;;;###autoload
86fbb8ca
CD
498(defun org-babel-execute-src-block (&optional arg info params)
499 "Execute the current source code block.
500Insert the results of execution into the buffer. Source code
501execution and the collection and formatting of results can be
502controlled through a variety of header arguments.
503
e66ba1df
BG
504With prefix argument ARG, force re-execution even if an existing
505result cached in the buffer would otherwise have been returned.
afe98dfa 506
86fbb8ca
CD
507Optionally supply a value for INFO in the form returned by
508`org-babel-get-src-block-info'.
509
510Optionally supply a value for PARAMS which will be merged with
511the header arguments specified at the front of the source code
512block."
513 (interactive)
afe98dfa 514 (let ((info (or info (org-babel-get-src-block-info))))
153ae947
BG
515 (when (org-babel-confirm-evaluate
516 (let ((i info))
517 (setf (nth 2 i) (org-babel-merge-params (nth 2 info) params))
518 i))
afe98dfa
CD
519 (let* ((lang (nth 0 info))
520 (params (if params
521 (org-babel-process-params
522 (org-babel-merge-params (nth 2 info) params))
523 (nth 2 info)))
524 (cache? (and (not arg) (cdr (assoc :cache params))
525 (string= "yes" (cdr (assoc :cache params)))))
526 (result-params (cdr (assoc :result-params params)))
527 (new-hash (when cache? (org-babel-sha1-hash info)))
3ab2c837 528 (old-hash (when cache? (org-babel-current-result-hash)))
afe98dfa 529 (body (setf (nth 1 info)
8223b1d2
BG
530 (if (org-babel-noweb-p params :eval)
531 (org-babel-expand-noweb-references info)
532 (nth 1 info))))
afe98dfa
CD
533 (dir (cdr (assoc :dir params)))
534 (default-directory
8223b1d2
BG
535 (or (and dir (file-name-as-directory (expand-file-name dir)))
536 default-directory))
afe98dfa
CD
537 (org-babel-call-process-region-original
538 (if (boundp 'org-babel-call-process-region-original)
539 org-babel-call-process-region-original
540 (symbol-function 'call-process-region)))
541 (indent (car (last info)))
3ab2c837 542 result cmd)
afe98dfa 543 (unwind-protect
8223b1d2
BG
544 (let ((call-process-region
545 (lambda (&rest args)
546 (apply 'org-babel-tramp-handle-call-process-region args))))
547 (let ((lang-check (lambda (f)
548 (let ((f (intern (concat "org-babel-execute:" f))))
549 (when (fboundp f) f)))))
3ab2c837 550 (setq cmd
8223b1d2
BG
551 (or (funcall lang-check lang)
552 (funcall lang-check (symbol-name
553 (cdr (assoc lang org-src-lang-modes))))
3ab2c837 554 (error "No org-babel-execute function for %s!" lang))))
afe98dfa
CD
555 (if (and (not arg) new-hash (equal new-hash old-hash))
556 (save-excursion ;; return cached result
557 (goto-char (org-babel-where-is-src-block-result nil info))
558 (end-of-line 1) (forward-char 1)
559 (setq result (org-babel-read-result))
560 (message (replace-regexp-in-string
561 "%" "%%" (format "%S" result))) result)
562 (message "executing %s code block%s..."
563 (capitalize lang)
564 (if (nth 4 info) (format " (%s)" (nth 4 info)) ""))
565 (setq result
566 ((lambda (result)
3ab2c837
BG
567 (if (and (eq (cdr (assoc :result-type params)) 'value)
568 (or (member "vector" result-params)
569 (member "table" result-params))
570 (not (listp result)))
571 (list (list result)) result))
afe98dfa 572 (funcall cmd body params)))
3ab2c837
BG
573 ;; if non-empty result and :file then write to :file
574 (when (cdr (assoc :file params))
575 (when result
576 (with-temp-file (cdr (assoc :file params))
577 (insert
578 (org-babel-format-result
579 result (cdr (assoc :sep (nth 2 info)))))))
580 (setq result (cdr (assoc :file params))))
afe98dfa
CD
581 (org-babel-insert-result
582 result result-params info new-hash indent lang)
583 (run-hooks 'org-babel-after-execute-hook)
584 result))
585 (setq call-process-region 'org-babel-call-process-region-original))))))
586
587(defun org-babel-expand-body:generic (body params &optional var-lines)
86fbb8ca 588 "Expand BODY with PARAMS.
a98edce9 589Expand a block of code with org-babel according to its header
86fbb8ca
CD
590arguments. This generic implementation of body expansion is
591called for languages which have not defined their own specific
afe98dfa
CD
592org-babel-expand-body:lang function."
593 (mapconcat #'identity (append var-lines (list body)) "\n"))
86fbb8ca
CD
594
595;;;###autoload
596(defun org-babel-expand-src-block (&optional arg info params)
597 "Expand the current source code block.
598Expand according to the source code block's header
599arguments and pop open the results in a preview buffer."
600 (interactive)
601 (let* ((info (or info (org-babel-get-src-block-info)))
602 (lang (nth 0 info))
603 (params (setf (nth 2 info)
604 (sort (org-babel-merge-params (nth 2 info) params)
605 (lambda (el1 el2) (string< (symbol-name (car el1))
8223b1d2 606 (symbol-name (car el2)))))))
86fbb8ca 607 (body (setf (nth 1 info)
8223b1d2 608 (if (org-babel-noweb-p params :eval)
86fbb8ca 609 (org-babel-expand-noweb-references info) (nth 1 info))))
afe98dfa 610 (expand-cmd (intern (concat "org-babel-expand-body:" lang)))
3ab2c837
BG
611 (assignments-cmd (intern (concat "org-babel-variable-assignments:"
612 lang)))
afe98dfa
CD
613 (expanded
614 (if (fboundp expand-cmd) (funcall expand-cmd body params)
615 (org-babel-expand-body:generic
3ab2c837
BG
616 body params (and (fboundp assignments-cmd)
617 (funcall assignments-cmd params))))))
86fbb8ca
CD
618 (org-edit-src-code
619 nil expanded (concat "*Org-Babel Preview " (buffer-name) "[ " lang " ]*"))))
620
3ab2c837
BG
621(defun org-babel-edit-distance (s1 s2)
622 "Return the edit (levenshtein) distance between strings S1 S2."
623 (let* ((l1 (length s1))
624 (l2 (length s2))
8223b1d2
BG
625 (dist (vconcat (mapcar (lambda (_) (make-vector (1+ l2) nil))
626 (number-sequence 1 (1+ l1)))))
627 (in (lambda (i j) (aref (aref dist i) j)))
628 (mmin (lambda (&rest lst) (apply #'min (remove nil lst)))))
629 (setf (aref (aref dist 0) 0) 0)
630 (dolist (i (number-sequence 1 l1))
631 (dolist (j (number-sequence 1 l2))
632 (setf (aref (aref dist i) j)
633 (+ (if (equal (aref s1 (1- i)) (aref s2 (1- j))) 0 1)
634 (funcall mmin (funcall in (1- i) j)
635 (funcall in i (1- j))
636 (funcall in (1- i) (1- j)))))))
637 (funcall in l1 l2)))
638
639(defun org-babel-combine-header-arg-lists (original &rest others)
640 "Combine a number of lists of header argument names and arguments."
641 (let ((results (copy-sequence original)))
642 (dolist (new-list others)
643 (dolist (arg-pair new-list)
644 (let ((header (car arg-pair))
645 (args (cdr arg-pair)))
646 (setq results
647 (cons arg-pair (org-remove-if
648 (lambda (pair) (equal header (car pair)))
649 results))))))
650 results))
3ab2c837
BG
651
652;;;###autoload
653(defun org-babel-check-src-block ()
654 "Check for misspelled header arguments in the current code block."
655 (interactive)
656 ;; TODO: report malformed code block
657 ;; TODO: report incompatible combinations of header arguments
e66ba1df 658 ;; TODO: report uninitialized variables
153ae947
BG
659 (let ((too-close 2) ;; <- control closeness to report potential match
660 (names (mapcar #'symbol-name org-babel-header-arg-names)))
3ab2c837
BG
661 (dolist (header (mapcar (lambda (arg) (substring (symbol-name (car arg)) 1))
662 (and (org-babel-where-is-src-block-head)
663 (org-babel-parse-header-arguments
8223b1d2 664 (org-no-properties
3ab2c837 665 (match-string 4))))))
153ae947 666 (dolist (name names)
3ab2c837 667 (when (and (not (string= header name))
153ae947
BG
668 (<= (org-babel-edit-distance header name) too-close)
669 (not (member header names)))
8223b1d2 670 (error "Supplied header \"%S\" is suspiciously close to \"%S\""
3ab2c837
BG
671 header name))))
672 (message "No suspicious header arguments found.")))
673
e66ba1df
BG
674;;;###autoload
675(defun org-babel-insert-header-arg ()
676 "Insert a header argument selecting from lists of common args and values."
677 (interactive)
678 (let* ((lang (car (org-babel-get-src-block-info 'light)))
8223b1d2
BG
679 (lang-headers (intern (concat "org-babel-header-args:" lang)))
680 (headers (org-babel-combine-header-arg-lists
681 org-babel-common-header-args-w-values
682 (if (boundp lang-headers) (eval lang-headers) nil)))
e66ba1df 683 (arg (org-icompleting-read
8223b1d2
BG
684 "Header Arg: "
685 (mapcar
686 (lambda (header-spec) (symbol-name (car header-spec)))
687 headers))))
e66ba1df
BG
688 (insert ":" arg)
689 (let ((vals (cdr (assoc (intern arg) headers))))
690 (when vals
691 (insert
692 " "
693 (cond
694 ((eq vals :any)
695 (read-from-minibuffer "value: "))
696 ((listp vals)
697 (mapconcat
698 (lambda (group)
699 (let ((arg (org-icompleting-read
700 "value: "
701 (cons "default" (mapcar #'symbol-name group)))))
702 (if (and arg (not (string= "default" arg)))
703 (concat arg " ")
704 "")))
705 vals ""))))))))
706
8223b1d2
BG
707;; Add support for completing-read insertion of header arguments after ":"
708(defun org-babel-header-arg-expand ()
709 "Call `org-babel-enter-header-arg-w-completion' in appropriate contexts."
710 (when (and (equal (char-before) ?\:) (org-babel-where-is-src-block-head))
711 (org-babel-enter-header-arg-w-completion (match-string 2))))
712
713(defun org-babel-enter-header-arg-w-completion (&optional lang)
714 "Insert header argument appropriate for LANG with completion."
715 (let* ((lang-headers-var (intern (concat "org-babel-header-args:" lang)))
716 (lang-headers (when (boundp lang-headers-var) (eval lang-headers-var)))
717 (headers-w-values (org-babel-combine-header-arg-lists
718 org-babel-common-header-args-w-values lang-headers))
719 (headers (mapcar #'symbol-name (mapcar #'car headers-w-values)))
720 (header (org-completing-read "Header Arg: " headers))
721 (args (cdr (assoc (intern header) headers-w-values)))
722 (arg (when (and args (listp args))
723 (org-completing-read
724 (format "%s: " header)
725 (mapcar #'symbol-name (apply #'append args))))))
726 (insert (concat header " " (or arg "")))
727 (cons header arg)))
728
729(add-hook 'org-tab-first-hook 'org-babel-header-arg-expand)
730
86fbb8ca
CD
731;;;###autoload
732(defun org-babel-load-in-session (&optional arg info)
733 "Load the body of the current source-code block.
734Evaluate the header arguments for the source block before
735entering the session. After loading the body this pops open the
736session."
737 (interactive)
738 (let* ((info (or info (org-babel-get-src-block-info)))
739 (lang (nth 0 info))
86fbb8ca 740 (params (nth 2 info))
afe98dfa 741 (body (setf (nth 1 info)
8223b1d2 742 (if (org-babel-noweb-p params :eval)
afe98dfa
CD
743 (org-babel-expand-noweb-references info)
744 (nth 1 info))))
86fbb8ca 745 (session (cdr (assoc :session params)))
afe98dfa
CD
746 (dir (cdr (assoc :dir params)))
747 (default-directory
748 (or (and dir (file-name-as-directory dir)) default-directory))
86fbb8ca
CD
749 (cmd (intern (concat "org-babel-load-session:" lang))))
750 (unless (fboundp cmd)
751 (error "No org-babel-load-session function for %s!" lang))
752 (pop-to-buffer (funcall cmd session body params))
753 (end-of-line 1)))
754
755;;;###autoload
afe98dfa
CD
756(defun org-babel-initiate-session (&optional arg info)
757 "Initiate session for current code block.
758If called with a prefix argument then resolve any variable
759references in the header arguments and assign these variables in
8223b1d2 760the session. Copy the body of the code block to the kill ring."
afe98dfa
CD
761 (interactive "P")
762 (let* ((info (or info (org-babel-get-src-block-info (not arg))))
86fbb8ca
CD
763 (lang (nth 0 info))
764 (body (nth 1 info))
765 (params (nth 2 info))
766 (session (cdr (assoc :session params)))
767 (dir (cdr (assoc :dir params)))
768 (default-directory
769 (or (and dir (file-name-as-directory dir)) default-directory))
afe98dfa
CD
770 (init-cmd (intern (format "org-babel-%s-initiate-session" lang)))
771 (prep-cmd (intern (concat "org-babel-prep-session:" lang))))
772 (if (and (stringp session) (string= session "none"))
773 (error "This block is not using a session!"))
774 (unless (fboundp init-cmd)
86fbb8ca 775 (error "No org-babel-initiate-session function for %s!" lang))
86fbb8ca
CD
776 (with-temp-buffer (insert (org-babel-trim body))
777 (copy-region-as-kill (point-min) (point-max)))
afe98dfa
CD
778 (when arg
779 (unless (fboundp prep-cmd)
780 (error "No org-babel-prep-session function for %s!" lang))
781 (funcall prep-cmd session params))
782 (funcall init-cmd session params)))
783
784;;;###autoload
785(defun org-babel-switch-to-session (&optional arg info)
786 "Switch to the session of the current code block.
8223b1d2 787Uses `org-babel-initiate-session' to start the session. If called
afe98dfa
CD
788with a prefix argument then this is passed on to
789`org-babel-initiate-session'."
790 (interactive "P")
791 (pop-to-buffer (org-babel-initiate-session arg info))
792 (end-of-line 1))
86fbb8ca
CD
793
794(defalias 'org-babel-pop-to-session 'org-babel-switch-to-session)
795
afe98dfa
CD
796;;;###autoload
797(defun org-babel-switch-to-session-with-code (&optional arg info)
798 "Switch to code buffer and display session."
799 (interactive "P")
8223b1d2
BG
800 (let ((swap-windows
801 (lambda ()
802 (let ((other-window-buffer (window-buffer (next-window))))
803 (set-window-buffer (next-window) (current-buffer))
804 (set-window-buffer (selected-window) other-window-buffer))
805 (other-window 1)))
806 (info (org-babel-get-src-block-info))
807 (org-src-window-setup 'reorganize-frame))
808 (save-excursion
809 (org-babel-switch-to-session arg info))
810 (org-edit-src-code)
811 (funcall swap-windows)))
afe98dfa
CD
812
813(defmacro org-babel-do-in-edit-buffer (&rest body)
814 "Evaluate BODY in edit buffer if there is a code block at point.
815Return t if a code block was found at point, nil otherwise."
816 `(let ((org-src-window-setup 'switch-invisibly))
817 (when (and (org-babel-where-is-src-block-head)
3ab2c837 818 (org-edit-src-code nil nil nil))
afe98dfa
CD
819 (unwind-protect (progn ,@body)
820 (if (org-bound-and-true-p org-edit-src-from-org-mode)
821 (org-edit-src-exit)))
822 t)))
e66ba1df 823(def-edebug-spec org-babel-do-in-edit-buffer (body))
afe98dfa
CD
824
825(defun org-babel-do-key-sequence-in-edit-buffer (key)
826 "Read key sequence and execute the command in edit buffer.
827Enter a key sequence to be executed in the language major-mode
8223b1d2 828edit buffer. For example, TAB will alter the contents of the
afe98dfa 829Org-mode code block according to the effect of TAB in the
8223b1d2 830language major-mode buffer. For languages that support
afe98dfa
CD
831interactive sessions, this can be used to send code from the Org
832buffer to the session for evaluation using the native major-mode
833evaluation mechanisms."
834 (interactive "kEnter key-sequence to execute in edit buffer: ")
835 (org-babel-do-in-edit-buffer
836 (call-interactively
837 (key-binding (or key (read-key-sequence nil))))))
838
86fbb8ca 839(defvar org-bracket-link-regexp)
bdebdb64 840
86fbb8ca
CD
841;;;###autoload
842(defun org-babel-open-src-block-result (&optional re-run)
843 "If `point' is on a src block then open the results of the
844source code block, otherwise return nil. With optional prefix
845argument RE-RUN the source-code block is evaluated even if
846results already exist."
847 (interactive "P")
3ab2c837
BG
848 (let ((info (org-babel-get-src-block-info)))
849 (when info
850 (save-excursion
851 ;; go to the results, if there aren't any then run the block
852 (goto-char (or (and (not re-run) (org-babel-where-is-src-block-result))
853 (progn (org-babel-execute-src-block)
854 (org-babel-where-is-src-block-result))))
855 (end-of-line 1)
856 (while (looking-at "[\n\r\t\f ]") (forward-char 1))
857 ;; open the results
858 (if (looking-at org-bracket-link-regexp)
859 ;; file results
860 (org-open-at-point)
861 (let ((r (org-babel-format-result
862 (org-babel-read-result) (cdr (assoc :sep (nth 2 info))))))
863 (pop-to-buffer (get-buffer-create "*Org-Babel Results*"))
864 (delete-region (point-min) (point-max))
865 (insert r)))
866 t))))
86fbb8ca 867
acedf35c
CD
868;;;###autoload
869(defmacro org-babel-map-src-blocks (file &rest body)
870 "Evaluate BODY forms on each source-block in FILE.
871If FILE is nil evaluate BODY forms on source blocks in current
872buffer. During evaluation of BODY the following local variables
873are set relative to the currently matched code block.
874
875full-block ------- string holding the entirety of the code block
876beg-block -------- point at the beginning of the code block
877end-block -------- point at the end of the matched code block
878lang ------------- string holding the language of the code block
879beg-lang --------- point at the beginning of the lang
880end-lang --------- point at the end of the lang
881switches --------- string holding the switches
882beg-switches ----- point at the beginning of the switches
883end-switches ----- point at the end of the switches
884header-args ------ string holding the header-args
885beg-header-args -- point at the beginning of the header-args
886end-header-args -- point at the end of the header-args
887body ------------- string holding the body of the code block
888beg-body --------- point at the beginning of the body
889end-body --------- point at the end of the body"
890 (declare (indent 1))
891 (let ((tempvar (make-symbol "file")))
892 `(let* ((,tempvar ,file)
893 (visited-p (or (null ,tempvar)
894 (get-file-buffer (expand-file-name ,tempvar))))
895 (point (point)) to-be-removed)
896 (save-window-excursion
897 (when ,tempvar (find-file ,tempvar))
898 (setq to-be-removed (current-buffer))
899 (goto-char (point-min))
900 (while (re-search-forward org-babel-src-block-regexp nil t)
901 (goto-char (match-beginning 0))
902 (let ((full-block (match-string 0))
903 (beg-block (match-beginning 0))
904 (end-block (match-end 0))
905 (lang (match-string 2))
906 (beg-lang (match-beginning 2))
907 (end-lang (match-end 2))
908 (switches (match-string 3))
909 (beg-switches (match-beginning 3))
910 (end-switches (match-end 3))
911 (header-args (match-string 4))
912 (beg-header-args (match-beginning 4))
913 (end-header-args (match-end 4))
914 (body (match-string 5))
915 (beg-body (match-beginning 5))
916 (end-body (match-end 5)))
917 ,@body
918 (goto-char end-block))))
919 (unless visited-p (kill-buffer to-be-removed))
920 (goto-char point))))
e66ba1df 921(def-edebug-spec org-babel-map-src-blocks (form body))
acedf35c 922
3ab2c837
BG
923;;;###autoload
924(defmacro org-babel-map-inline-src-blocks (file &rest body)
925 "Evaluate BODY forms on each inline source-block in FILE.
926If FILE is nil evaluate BODY forms on source blocks in current
927buffer."
928 (declare (indent 1))
929 (let ((tempvar (make-symbol "file")))
930 `(let* ((,tempvar ,file)
931 (visited-p (or (null ,tempvar)
932 (get-file-buffer (expand-file-name ,tempvar))))
933 (point (point)) to-be-removed)
934 (save-window-excursion
935 (when ,tempvar (find-file ,tempvar))
936 (setq to-be-removed (current-buffer))
937 (goto-char (point-min))
938 (while (re-search-forward org-babel-inline-src-block-regexp nil t)
939 (goto-char (match-beginning 1))
940 (save-match-data ,@body)
941 (goto-char (match-end 0))))
942 (unless visited-p (kill-buffer to-be-removed))
943 (goto-char point))))
e66ba1df
BG
944(def-edebug-spec org-babel-map-inline-src-blocks (form body))
945
946(defvar org-babel-lob-one-liner-regexp)
bdebdb64 947
e66ba1df
BG
948;;;###autoload
949(defmacro org-babel-map-call-lines (file &rest body)
950 "Evaluate BODY forms on each call line in FILE.
951If FILE is nil evaluate BODY forms on source blocks in current
952buffer."
953 (declare (indent 1))
954 (let ((tempvar (make-symbol "file")))
955 `(let* ((,tempvar ,file)
956 (visited-p (or (null ,tempvar)
957 (get-file-buffer (expand-file-name ,tempvar))))
958 (point (point)) to-be-removed)
959 (save-window-excursion
960 (when ,tempvar (find-file ,tempvar))
961 (setq to-be-removed (current-buffer))
962 (goto-char (point-min))
963 (while (re-search-forward org-babel-lob-one-liner-regexp nil t)
964 (goto-char (match-beginning 1))
965 (save-match-data ,@body)
966 (goto-char (match-end 0))))
967 (unless visited-p (kill-buffer to-be-removed))
968 (goto-char point))))
969(def-edebug-spec org-babel-map-call-lines (form body))
3ab2c837 970
153ae947
BG
971;;;###autoload
972(defmacro org-babel-map-executables (file &rest body)
973 (declare (indent 1))
974 (let ((tempvar (make-symbol "file"))
975 (rx (make-symbol "rx")))
976 `(let* ((,tempvar ,file)
977 (,rx (concat "\\(" org-babel-src-block-regexp
978 "\\|" org-babel-inline-src-block-regexp
979 "\\|" org-babel-lob-one-liner-regexp "\\)"))
980 (visited-p (or (null ,tempvar)
981 (get-file-buffer (expand-file-name ,tempvar))))
982 (point (point)) to-be-removed)
983 (save-window-excursion
984 (when ,tempvar (find-file ,tempvar))
985 (setq to-be-removed (current-buffer))
986 (goto-char (point-min))
987 (while (re-search-forward ,rx nil t)
988 (goto-char (match-beginning 1))
989 (when (looking-at org-babel-inline-src-block-regexp)(forward-char 1))
990 (save-match-data ,@body)
991 (goto-char (match-end 0))))
992 (unless visited-p (kill-buffer to-be-removed))
993 (goto-char point))))
994(def-edebug-spec org-babel-map-executables (form body))
995
86fbb8ca
CD
996;;;###autoload
997(defun org-babel-execute-buffer (&optional arg)
998 "Execute source code blocks in a buffer.
999Call `org-babel-execute-src-block' on every source block in
1000the current buffer."
1001 (interactive "P")
3ab2c837 1002 (org-babel-eval-wipe-error-buffer)
afe98dfa 1003 (org-save-outline-visibility t
153ae947
BG
1004 (org-babel-map-executables nil
1005 (if (looking-at org-babel-lob-one-liner-regexp)
1006 (org-babel-lob-execute-maybe)
1007 (org-babel-execute-src-block arg)))))
86fbb8ca
CD
1008
1009;;;###autoload
1010(defun org-babel-execute-subtree (&optional arg)
1011 "Execute source code blocks in a subtree.
1012Call `org-babel-execute-src-block' on every source block in
1013the current subtree."
1014 (interactive "P")
1015 (save-restriction
1016 (save-excursion
1017 (org-narrow-to-subtree)
afe98dfa 1018 (org-babel-execute-buffer arg)
86fbb8ca
CD
1019 (widen))))
1020
1021;;;###autoload
1022(defun org-babel-sha1-hash (&optional info)
1023 "Generate an sha1 hash based on the value of info."
1024 (interactive)
afe98dfa
CD
1025 (let ((print-level nil)
1026 (info (or info (org-babel-get-src-block-info))))
1027 (setf (nth 2 info)
1028 (sort (copy-sequence (nth 2 info))
1029 (lambda (a b) (string< (car a) (car b)))))
8223b1d2 1030 (let* ((rm (lambda (lst)
3ab2c837
BG
1031 (dolist (p '("replace" "silent" "append" "prepend"))
1032 (setq lst (remove p lst)))
8223b1d2
BG
1033 lst))
1034 (norm (lambda (arg)
3ab2c837 1035 (let ((v (if (and (listp (cdr arg)) (null (cddr arg)))
e66ba1df 1036 (copy-sequence (cdr arg))
3ab2c837
BG
1037 (cdr arg))))
1038 (when (and v (not (and (sequencep v)
1039 (not (consp v))
1040 (= (length v) 0))))
1041 (cond
1042 ((and (listp v) ; lists are sorted
1043 (member (car arg) '(:result-params)))
8223b1d2 1044 (sort (funcall rm v) #'string<))
3ab2c837
BG
1045 ((and (stringp v) ; strings are sorted
1046 (member (car arg) '(:results :exports)))
8223b1d2 1047 (mapconcat #'identity (sort (funcall rm (split-string v))
3ab2c837 1048 #'string<) " "))
8223b1d2 1049 (t v)))))))
3ab2c837
BG
1050 ((lambda (hash)
1051 (when (org-called-interactively-p 'interactive) (message hash)) hash)
1052 (let ((it (format "%s-%s"
afe98dfa
CD
1053 (mapconcat
1054 #'identity
3ab2c837 1055 (delq nil (mapcar (lambda (arg)
8223b1d2 1056 (let ((normalized (funcall norm arg)))
3ab2c837
BG
1057 (when normalized
1058 (format "%S" normalized))))
1059 (nth 2 info))) ":")
1060 (nth 1 info))))
1061 (sha1 it))))))
1062
1063(defun org-babel-current-result-hash ()
8223b1d2
BG
1064 "Return the current in-buffer hash."
1065 (org-babel-where-is-src-block-result)
1066 (org-no-properties (match-string 3)))
1067
1068(defun org-babel-set-current-result-hash (hash)
1069 "Set the current in-buffer hash to HASH."
3ab2c837 1070 (org-babel-where-is-src-block-result)
8223b1d2
BG
1071 (save-excursion (goto-char (match-beginning 3))
1072 ;; (mapc #'delete-overlay (overlays-at (point)))
1073 (replace-match hash nil nil nil 3)
1074 (org-babel-hide-hash)))
86fbb8ca
CD
1075
1076(defun org-babel-hide-hash ()
1077 "Hide the hash in the current results line.
1078Only the initial `org-babel-hash-show' characters of the hash
1079will remain visible."
1080 (add-to-invisibility-spec '(org-babel-hide-hash . t))
1081 (save-excursion
1082 (when (and (re-search-forward org-babel-result-regexp nil t)
1083 (match-string 3))
1084 (let* ((start (match-beginning 3))
1085 (hide-start (+ org-babel-hash-show start))
1086 (end (match-end 3))
1087 (hash (match-string 3))
1088 ov1 ov2)
1089 (setq ov1 (make-overlay start hide-start))
1090 (setq ov2 (make-overlay hide-start end))
1091 (overlay-put ov2 'invisible 'org-babel-hide-hash)
1092 (overlay-put ov1 'babel-hash hash)))))
1093
1094(defun org-babel-hide-all-hashes ()
1095 "Hide the hash in the current buffer.
1096Only the initial `org-babel-hash-show' characters of each hash
1097will remain visible. This function should be called as part of
1098the `org-mode-hook'."
1099 (save-excursion
1100 (while (re-search-forward org-babel-result-regexp nil t)
1101 (goto-char (match-beginning 0))
1102 (org-babel-hide-hash)
1103 (goto-char (match-end 0)))))
1104(add-hook 'org-mode-hook 'org-babel-hide-all-hashes)
1105
1106(defun org-babel-hash-at-point (&optional point)
1107 "Return the value of the hash at POINT.
1108The hash is also added as the last element of the kill ring.
1109This can be called with C-c C-c."
1110 (interactive)
1111 (let ((hash (car (delq nil (mapcar
1112 (lambda (ol) (overlay-get ol 'babel-hash))
1113 (overlays-at (or point (point))))))))
1114 (when hash (kill-new hash) (message hash))))
1115(add-hook 'org-ctrl-c-ctrl-c-hook 'org-babel-hash-at-point)
1116
153ae947
BG
1117(defun org-babel-result-hide-spec ()
1118 "Hide portions of results lines.
1119Add `org-babel-hide-result' as an invisibility spec for hiding
1120portions of results lines."
1121 (add-to-invisibility-spec '(org-babel-hide-result . t)))
1122(add-hook 'org-mode-hook 'org-babel-result-hide-spec)
1123
1124(defvar org-babel-hide-result-overlays nil
1125 "Overlays hiding results.")
1126
1127(defun org-babel-result-hide-all ()
1128 "Fold all results in the current buffer."
1129 (interactive)
1130 (org-babel-show-result-all)
1131 (save-excursion
1132 (while (re-search-forward org-babel-result-regexp nil t)
1133 (save-excursion (goto-char (match-beginning 0))
1134 (org-babel-hide-result-toggle-maybe)))))
1135
1136(defun org-babel-show-result-all ()
1137 "Unfold all results in the current buffer."
1138 (mapc 'delete-overlay org-babel-hide-result-overlays)
1139 (setq org-babel-hide-result-overlays nil))
1140
1141;;;###autoload
1142(defun org-babel-hide-result-toggle-maybe ()
1143 "Toggle visibility of result at point."
1144 (interactive)
1145 (let ((case-fold-search t))
1146 (if (save-excursion
1147 (beginning-of-line 1)
1148 (looking-at org-babel-result-regexp))
1149 (progn (org-babel-hide-result-toggle)
1150 t) ;; to signal that we took action
1151 nil))) ;; to signal that we did not
1152
1153(defun org-babel-hide-result-toggle (&optional force)
1154 "Toggle the visibility of the current result."
1155 (interactive)
1156 (save-excursion
1157 (beginning-of-line)
1158 (if (re-search-forward org-babel-result-regexp nil t)
1159 (let ((start (progn (beginning-of-line 2) (- (point) 1)))
1160 (end (progn
1161 (while (looking-at org-babel-multi-line-header-regexp)
1162 (forward-line 1))
1163 (goto-char (- (org-babel-result-end) 1)) (point)))
1164 ov)
1165 (if (memq t (mapcar (lambda (overlay)
1166 (eq (overlay-get overlay 'invisible)
1167 'org-babel-hide-result))
1168 (overlays-at start)))
1169 (if (or (not force) (eq force 'off))
1170 (mapc (lambda (ov)
1171 (when (member ov org-babel-hide-result-overlays)
1172 (setq org-babel-hide-result-overlays
1173 (delq ov org-babel-hide-result-overlays)))
1174 (when (eq (overlay-get ov 'invisible)
1175 'org-babel-hide-result)
1176 (delete-overlay ov)))
1177 (overlays-at start)))
1178 (setq ov (make-overlay start end))
1179 (overlay-put ov 'invisible 'org-babel-hide-result)
1180 ;; make the block accessible to isearch
1181 (overlay-put
1182 ov 'isearch-open-invisible
1183 (lambda (ov)
1184 (when (member ov org-babel-hide-result-overlays)
1185 (setq org-babel-hide-result-overlays
1186 (delq ov org-babel-hide-result-overlays)))
1187 (when (eq (overlay-get ov 'invisible)
1188 'org-babel-hide-result)
1189 (delete-overlay ov))))
1190 (push ov org-babel-hide-result-overlays)))
1191 (error "Not looking at a result line"))))
1192
1193;; org-tab-after-check-for-cycling-hook
1194(add-hook 'org-tab-first-hook 'org-babel-hide-result-toggle-maybe)
1195;; Remove overlays when changing major mode
1196(add-hook 'org-mode-hook
1197 (lambda () (org-add-hook 'change-major-mode-hook
1198 'org-babel-show-result-all 'append 'local)))
1199
86fbb8ca
CD
1200(defvar org-file-properties)
1201(defun org-babel-params-from-properties (&optional lang)
1202 "Retrieve parameters specified as properties.
1203Return an association list of any source block params which
1204may be specified in the properties of the current outline entry."
1205 (save-match-data
1206 (let (val sym)
e66ba1df
BG
1207 (org-babel-parse-multiple-vars
1208 (delq nil
86fbb8ca 1209 (mapcar
e66ba1df
BG
1210 (lambda (header-arg)
1211 (and (setq val (org-entry-get (point) header-arg t))
1212 (cons (intern (concat ":" header-arg))
1213 (org-babel-read val))))
1214 (mapcar
8223b1d2
BG
1215 #'symbol-name
1216 (mapcar
1217 #'car
1218 (org-babel-combine-header-arg-lists
1219 org-babel-common-header-args-w-values
1220 (progn
1221 (setq sym (intern (concat "org-babel-header-args:" lang)))
1222 (and (boundp sym) (eval sym))))))))))))
86fbb8ca
CD
1223
1224(defvar org-src-preserve-indentation)
1225(defun org-babel-parse-src-block-match ()
1226 "Parse the results from a match of the `org-babel-src-block-regexp'."
1227 (let* ((block-indentation (length (match-string 1)))
8223b1d2 1228 (lang (org-no-properties (match-string 2)))
86fbb8ca
CD
1229 (lang-headers (intern (concat "org-babel-default-header-args:" lang)))
1230 (switches (match-string 3))
8223b1d2 1231 (body (org-no-properties
3ab2c837
BG
1232 (let* ((body (match-string 5))
1233 (sub-length (- (length body) 1)))
e66ba1df
BG
1234 (if (and (> sub-length 0)
1235 (string= "\n" (substring body sub-length)))
3ab2c837 1236 (substring body 0 sub-length)
e66ba1df 1237 (or body "")))))
86fbb8ca 1238 (preserve-indentation (or org-src-preserve-indentation
eb2adf0a
BG
1239 (save-match-data
1240 (string-match "-i\\>" switches)))))
86fbb8ca
CD
1241 (list lang
1242 ;; get block body less properties, protective commas, and indentation
1243 (with-temp-buffer
1244 (save-match-data
bdebdb64 1245 (insert (org-unescape-code-in-string body))
86fbb8ca
CD
1246 (unless preserve-indentation (org-do-remove-indentation))
1247 (buffer-string)))
1248 (org-babel-merge-params
1249 org-babel-default-header-args
86fbb8ca
CD
1250 (org-babel-params-from-properties lang)
1251 (if (boundp lang-headers) (eval lang-headers) nil)
1252 (org-babel-parse-header-arguments
8223b1d2 1253 (org-no-properties (or (match-string 4) ""))))
86fbb8ca
CD
1254 switches
1255 block-indentation)))
1256
1257(defun org-babel-parse-inline-src-block-match ()
1258 "Parse the results from a match of the `org-babel-inline-src-block-regexp'."
8223b1d2 1259 (let* ((lang (org-no-properties (match-string 2)))
86fbb8ca
CD
1260 (lang-headers (intern (concat "org-babel-default-header-args:" lang))))
1261 (list lang
bdebdb64 1262 (org-unescape-code-in-string (org-no-properties (match-string 5)))
86fbb8ca
CD
1263 (org-babel-merge-params
1264 org-babel-default-inline-header-args
86fbb8ca
CD
1265 (org-babel-params-from-properties lang)
1266 (if (boundp lang-headers) (eval lang-headers) nil)
1267 (org-babel-parse-header-arguments
8223b1d2 1268 (org-no-properties (or (match-string 4) "")))))))
86fbb8ca 1269
e66ba1df
BG
1270(defun org-babel-balanced-split (string alts)
1271 "Split STRING on instances of ALTS.
1272ALTS is a cons of two character options where each option may be
1273either the numeric code of a single character or a list of
1274character alternatives. For example to split on balanced
1275instances of \"[ \t]:\" set ALTS to '((32 9) . 58)."
8223b1d2
BG
1276 (let* ((matches (lambda (ch spec) (if (listp spec) (member ch spec) (equal spec ch))))
1277 (matched (lambda (ch last)
1278 (if (consp alts)
1279 (and (funcall matches ch (cdr alts))
1280 (funcall matches last (car alts)))
1281 (funcall matches ch alts))))
1282 (balance 0) (last 0)
1283 quote partial lst)
1284 (mapc (lambda (ch) ; split on [], (), "" balanced instances of [ \t]:
1285 (setq balance (+ balance
1286 (cond ((or (equal 91 ch) (equal 40 ch)) 1)
1287 ((or (equal 93 ch) (equal 41 ch)) -1)
1288 (t 0))))
1289 (when (and (equal 34 ch) (not (equal 92 last)))
1290 (setq quote (not quote)))
1291 (setq partial (cons ch partial))
1292 (when (and (= balance 0) (not quote) (funcall matched ch last))
1293 (setq lst (cons (apply #'string (nreverse
1294 (if (consp alts)
1295 (cddr partial)
1296 (cdr partial))))
1297 lst))
1298 (setq partial nil))
1299 (setq last ch))
1300 (string-to-list string))
1301 (nreverse (cons (apply #'string (nreverse partial)) lst))))
e66ba1df
BG
1302
1303(defun org-babel-join-splits-near-ch (ch list)
1304 "Join splits where \"=\" is on either end of the split."
8223b1d2
BG
1305 (let ((last= (lambda (str) (= ch (aref str (1- (length str))))))
1306 (first= (lambda (str) (= ch (aref str 0)))))
e66ba1df
BG
1307 (reverse
1308 (org-reduce (lambda (acc el)
8223b1d2
BG
1309 (let ((head (car acc)))
1310 (if (and head (or (funcall last= head) (funcall first= el)))
1311 (cons (concat head el) (cdr acc))
1312 (cons el acc))))
1313 list :initial-value nil))))
e66ba1df 1314
86fbb8ca
CD
1315(defun org-babel-parse-header-arguments (arg-string)
1316 "Parse a string of header arguments returning an alist."
acedf35c 1317 (when (> (length arg-string) 0)
e66ba1df
BG
1318 (org-babel-parse-multiple-vars
1319 (delq nil
1320 (mapcar
1321 (lambda (arg)
1322 (if (string-match
1323 "\\([^ \f\t\n\r\v]+\\)[ \f\t\n\r\v]+\\([^ \f\t\n\r\v]+.*\\)"
1324 arg)
1325 (cons (intern (match-string 1 arg))
1326 (org-babel-read (org-babel-chomp (match-string 2 arg))))
1327 (cons (intern (org-babel-chomp arg)) nil)))
1328 ((lambda (raw)
1329 (cons (car raw) (mapcar (lambda (r) (concat ":" r)) (cdr raw))))
1330 (org-babel-balanced-split arg-string '((32 9) . 58))))))))
1331
1332(defun org-babel-parse-multiple-vars (header-arguments)
1333 "Expand multiple variable assignments behind a single :var keyword.
1334
1335This allows expression of multiple variables with one :var as
1336shown below.
1337
1338#+PROPERTY: var foo=1, bar=2"
1339 (let (results)
1340 (mapc (lambda (pair)
1341 (if (eq (car pair) :var)
1342 (mapcar (lambda (v) (push (cons :var (org-babel-trim v)) results))
1343 (org-babel-join-splits-near-ch
1344 61 (org-babel-balanced-split (cdr pair) 32)))
1345 (push pair results)))
1346 header-arguments)
1347 (nreverse results)))
86fbb8ca
CD
1348
1349(defun org-babel-process-params (params)
afe98dfa 1350 "Expand variables in PARAMS and add summary parameters."
e66ba1df
BG
1351 (let* ((processed-vars (mapcar (lambda (el)
1352 (if (consp (cdr el))
1353 (cdr el)
1354 (org-babel-ref-parse (cdr el))))
1355 (org-babel-get-header params :var)))
1356 (vars-and-names (if (and (assoc :colname-names params)
1357 (assoc :rowname-names params))
1358 (list processed-vars)
1359 (org-babel-disassemble-tables
1360 processed-vars
1361 (cdr (assoc :hlines params))
1362 (cdr (assoc :colnames params))
1363 (cdr (assoc :rownames params)))))
3ab2c837 1364 (raw-result (or (cdr (assoc :results params)) ""))
afe98dfa 1365 (result-params (append
3ab2c837
BG
1366 (split-string (if (stringp raw-result)
1367 raw-result
1368 (eval raw-result)))
afe98dfa
CD
1369 (cdr (assoc :result-params params)))))
1370 (append
1371 (mapcar (lambda (var) (cons :var var)) (car vars-and-names))
1372 (list
3ab2c837
BG
1373 (cons :colname-names (or (cdr (assoc :colname-names params))
1374 (cadr vars-and-names)))
1375 (cons :rowname-names (or (cdr (assoc :rowname-names params))
1376 (caddr vars-and-names)))
afe98dfa
CD
1377 (cons :result-params result-params)
1378 (cons :result-type (cond ((member "output" result-params) 'output)
1379 ((member "value" result-params) 'value)
1380 (t 'value))))
1381 (org-babel-get-header params :var 'other))))
86fbb8ca
CD
1382
1383;; row and column names
1384(defun org-babel-del-hlines (table)
1385 "Remove all 'hlines from TABLE."
1386 (remove 'hline table))
1387
1388(defun org-babel-get-colnames (table)
1389 "Return the column names of TABLE.
1390Return a cons cell, the `car' of which contains the TABLE less
1391colnames, and the `cdr' of which contains a list of the column
1392names."
1393 (if (equal 'hline (nth 1 table))
1394 (cons (cddr table) (car table))
1395 (cons (cdr table) (car table))))
1396
1397(defun org-babel-get-rownames (table)
1398 "Return the row names of TABLE.
1399Return a cons cell, the `car' of which contains the TABLE less
1400colnames, and the `cdr' of which contains a list of the column
1401names. Note: this function removes any hlines in TABLE."
8223b1d2
BG
1402 (let* ((trans (lambda (table) (apply #'mapcar* #'list table)))
1403 (width (apply 'max
1404 (mapcar (lambda (el) (if (listp el) (length el) 0)) table)))
1405 (table (funcall trans (mapcar (lambda (row)
1406 (if (not (equal row 'hline))
1407 row
1408 (setq row '())
1409 (dotimes (n width)
1410 (setq row (cons 'hline row)))
1411 row))
1412 table))))
1413 (cons (mapcar (lambda (row) (if (equal (car row) 'hline) 'hline row))
1414 (funcall trans (cdr table)))
1415 (remove 'hline (car table)))))
86fbb8ca
CD
1416
1417(defun org-babel-put-colnames (table colnames)
1418 "Add COLNAMES to TABLE if they exist."
1419 (if colnames (apply 'list colnames 'hline table) table))
1420
1421(defun org-babel-put-rownames (table rownames)
1422 "Add ROWNAMES to TABLE if they exist."
1423 (if rownames
1424 (mapcar (lambda (row)
1425 (if (listp row)
1426 (cons (or (pop rownames) "") row)
1427 row)) table)
1428 table))
1429
1430(defun org-babel-pick-name (names selector)
afe98dfa
CD
1431 "Select one out of an alist of row or column names.
1432SELECTOR can be either a list of names in which case those names
1433will be returned directly, or an index into the list NAMES in
1434which case the indexed names will be return."
1435 (if (listp selector)
1436 selector
1437 (when names
1438 (if (and selector (symbolp selector) (not (equal t selector)))
1439 (cdr (assoc selector names))
1440 (if (integerp selector)
1441 (nth (- selector 1) names)
1442 (cdr (car (last names))))))))
86fbb8ca
CD
1443
1444(defun org-babel-disassemble-tables (vars hlines colnames rownames)
1445 "Parse tables for further processing.
1446Process the variables in VARS according to the HLINES,
1447ROWNAMES and COLNAMES header arguments. Return a list consisting
1448of the vars, cnames and rnames."
1449 (let (cnames rnames)
1450 (list
1451 (mapcar
1452 (lambda (var)
1453 (when (listp (cdr var))
1454 (when (and (not (equal colnames "no"))
1455 (or colnames (and (equal (nth 1 (cdr var)) 'hline)
1456 (not (member 'hline (cddr (cdr var)))))))
1457 (let ((both (org-babel-get-colnames (cdr var))))
1458 (setq cnames (cons (cons (car var) (cdr both))
1459 cnames))
1460 (setq var (cons (car var) (car both)))))
1461 (when (and rownames (not (equal rownames "no")))
1462 (let ((both (org-babel-get-rownames (cdr var))))
1463 (setq rnames (cons (cons (car var) (cdr both))
1464 rnames))
1465 (setq var (cons (car var) (car both)))))
1466 (when (and hlines (not (equal hlines "yes")))
1467 (setq var (cons (car var) (org-babel-del-hlines (cdr var))))))
1468 var)
1469 vars)
e66ba1df 1470 (reverse cnames) (reverse rnames))))
86fbb8ca
CD
1471
1472(defun org-babel-reassemble-table (table colnames rownames)
1473 "Add column and row names to a table.
1474Given a TABLE and set of COLNAMES and ROWNAMES add the names
1475to the table for reinsertion to org-mode."
1476 (if (listp table)
1477 ((lambda (table)
1478 (if (and colnames (listp (car table)) (= (length (car table))
1479 (length colnames)))
1480 (org-babel-put-colnames table colnames) table))
1481 (if (and rownames (= (length table) (length rownames)))
1482 (org-babel-put-rownames table rownames) table))
1483 table))
1484
1485(defun org-babel-where-is-src-block-head ()
1486 "Find where the current source block begins.
1487Return the point at the beginning of the current source
1488block. Specifically at the beginning of the #+BEGIN_SRC line.
1489If the point is not on a source block then return nil."
8223b1d2 1490 (let ((initial (point)) (case-fold-search t) top bottom)
86fbb8ca 1491 (or
3ab2c837 1492 (save-excursion ;; on a source name line or a #+header line
86fbb8ca 1493 (beginning-of-line 1)
3ab2c837
BG
1494 (and (or (looking-at org-babel-src-name-regexp)
1495 (looking-at org-babel-multi-line-header-regexp))
1496 (progn
1497 (while (and (forward-line 1)
8223b1d2
BG
1498 (or (looking-at org-babel-src-name-regexp)
1499 (looking-at org-babel-multi-line-header-regexp))))
3ab2c837 1500 (looking-at org-babel-src-block-regexp))
86fbb8ca
CD
1501 (point)))
1502 (save-excursion ;; on a #+begin_src line
1503 (beginning-of-line 1)
1504 (and (looking-at org-babel-src-block-regexp)
1505 (point)))
1506 (save-excursion ;; inside a src block
1507 (and
1508 (re-search-backward "^[ \t]*#\\+begin_src" nil t) (setq top (point))
1509 (re-search-forward "^[ \t]*#\\+end_src" nil t) (setq bottom (point))
1510 (< top initial) (< initial bottom)
1511 (progn (goto-char top) (beginning-of-line 1)
1512 (looking-at org-babel-src-block-regexp))
1513 (point))))))
1514
afe98dfa
CD
1515;;;###autoload
1516(defun org-babel-goto-src-block-head ()
1517 "Go to the beginning of the current code block."
1518 (interactive)
1519 ((lambda (head)
8223b1d2 1520 (if head (goto-char head) (error "Not currently in a code block")))
afe98dfa
CD
1521 (org-babel-where-is-src-block-head)))
1522
86fbb8ca
CD
1523;;;###autoload
1524(defun org-babel-goto-named-src-block (name)
1525 "Go to a named source-code block."
1526 (interactive
8223b1d2
BG
1527 (let ((completion-ignore-case t)
1528 (case-fold-search t)
1529 (under-point (thing-at-point 'line)))
1530 (list (org-icompleting-read
1531 "source-block name: " (org-babel-src-block-names) nil t
1532 (cond
1533 ;; noweb
1534 ((string-match (org-babel-noweb-wrap) under-point)
1535 (let ((block-name (match-string 1 under-point)))
1536 (string-match "[^(]*" block-name)
1537 (match-string 0 block-name)))
1538 ;; #+call:
1539 ((string-match org-babel-lob-one-liner-regexp under-point)
1540 (let ((source-info (car (org-babel-lob-get-info))))
1541 (if (string-match "^\\([^\\[]+?\\)\\(\\[.*\\]\\)?(" source-info)
1542 (let ((source-name (match-string 1 source-info)))
1543 source-name))))
1544 ;; #+results:
1545 ((string-match (concat "#\\+" org-babel-results-keyword
1546 "\\:\s+\\([^\\(]*\\)") under-point)
1547 (match-string 1 under-point))
1548 ;; symbol-at-point
1549 ((and (thing-at-point 'symbol))
1550 (org-babel-find-named-block (thing-at-point 'symbol))
1551 (thing-at-point 'symbol))
1552 (""))))))
86fbb8ca
CD
1553 (let ((point (org-babel-find-named-block name)))
1554 (if point
1555 ;; taken from `org-open-at-point'
8223b1d2 1556 (progn (org-mark-ring-push) (goto-char point) (org-show-context))
86fbb8ca
CD
1557 (message "source-code block '%s' not found in this buffer" name))))
1558
1559(defun org-babel-find-named-block (name)
1560 "Find a named source-code block.
1561Return the location of the source block identified by source
8223b1d2 1562NAME, or nil if no such block exists. Set match data according to
86fbb8ca
CD
1563org-babel-named-src-block-regexp."
1564 (save-excursion
1565 (let ((case-fold-search t)
1566 (regexp (org-babel-named-src-block-regexp-for-name name)) msg)
1567 (goto-char (point-min))
1568 (when (or (re-search-forward regexp nil t)
e66ba1df 1569 (re-search-backward regexp nil t))
86fbb8ca
CD
1570 (match-beginning 0)))))
1571
1572(defun org-babel-src-block-names (&optional file)
1573 "Returns the names of source blocks in FILE or the current buffer."
1574 (save-excursion
1575 (when file (find-file file)) (goto-char (point-min))
8223b1d2 1576 (let ((case-fold-search t) names)
86fbb8ca 1577 (while (re-search-forward org-babel-src-name-w-name-regexp nil t)
e66ba1df 1578 (setq names (cons (match-string 3) names)))
86fbb8ca
CD
1579 names)))
1580
1581;;;###autoload
1582(defun org-babel-goto-named-result (name)
1583 "Go to a named result."
1584 (interactive
1585 (let ((completion-ignore-case t))
1586 (list (org-icompleting-read "source-block name: "
1587 (org-babel-result-names) nil t))))
1588 (let ((point (org-babel-find-named-result name)))
1589 (if point
1590 ;; taken from `org-open-at-point'
1591 (progn (goto-char point) (org-show-context))
1592 (message "result '%s' not found in this buffer" name))))
1593
e66ba1df 1594(defun org-babel-find-named-result (name &optional point)
86fbb8ca
CD
1595 "Find a named result.
1596Return the location of the result named NAME in the current
1597buffer or nil if no such result exists."
1598 (save-excursion
8223b1d2
BG
1599 (let ((case-fold-search t))
1600 (goto-char (or point (point-min)))
1601 (catch 'is-a-code-block
1602 (when (re-search-forward
1603 (concat org-babel-result-regexp
1604 "[ \t]" (regexp-quote name) "[ \t]*[\n\f\v\r]") nil t)
1605 (when (and (string= "name" (downcase (match-string 1)))
1606 (or (beginning-of-line 1)
1607 (looking-at org-babel-src-block-regexp)
1608 (looking-at org-babel-multi-line-header-regexp)))
1609 (throw 'is-a-code-block (org-babel-find-named-result name (point))))
1610 (beginning-of-line 0) (point))))))
86fbb8ca
CD
1611
1612(defun org-babel-result-names (&optional file)
1613 "Returns the names of results in FILE or the current buffer."
1614 (save-excursion
1615 (when file (find-file file)) (goto-char (point-min))
8223b1d2 1616 (let ((case-fold-search t) names)
86fbb8ca 1617 (while (re-search-forward org-babel-result-w-name-regexp nil t)
3ab2c837 1618 (setq names (cons (match-string 4) names)))
86fbb8ca
CD
1619 names)))
1620
1621;;;###autoload
1622(defun org-babel-next-src-block (&optional arg)
1623 "Jump to the next source block.
1624With optional prefix argument ARG, jump forward ARG many source blocks."
1625 (interactive "P")
1626 (when (looking-at org-babel-src-block-regexp) (forward-char 1))
afe98dfa
CD
1627 (condition-case nil
1628 (re-search-forward org-babel-src-block-regexp nil nil (or arg 1))
1629 (error (error "No further code blocks")))
86fbb8ca
CD
1630 (goto-char (match-beginning 0)) (org-show-context))
1631
1632;;;###autoload
1633(defun org-babel-previous-src-block (&optional arg)
1634 "Jump to the previous source block.
1635With optional prefix argument ARG, jump backward ARG many source blocks."
1636 (interactive "P")
afe98dfa
CD
1637 (condition-case nil
1638 (re-search-backward org-babel-src-block-regexp nil nil (or arg 1))
1639 (error (error "No previous code blocks")))
86fbb8ca
CD
1640 (goto-char (match-beginning 0)) (org-show-context))
1641
afe98dfa
CD
1642(defvar org-babel-load-languages)
1643
1644;;;###autoload
1645(defun org-babel-mark-block ()
8223b1d2 1646 "Mark current src block."
afe98dfa
CD
1647 (interactive)
1648 ((lambda (head)
1649 (when head
1650 (save-excursion
1651 (goto-char head)
1652 (looking-at org-babel-src-block-regexp))
1653 (push-mark (match-end 5) nil t)
1654 (goto-char (match-beginning 5))))
1655 (org-babel-where-is-src-block-head)))
1656
1657(defun org-babel-demarcate-block (&optional arg)
1658 "Wrap or split the code in the region or on the point.
1659When called from inside of a code block the current block is
1660split. When called from outside of a code block a new code block
1661is created. In both cases if the region is demarcated and if the
1662region is not active then the point is demarcated."
1663 (interactive "P")
1664 (let ((info (org-babel-get-src-block-info 'light))
e66ba1df
BG
1665 (headers (progn (org-babel-where-is-src-block-head)
1666 (match-string 4)))
afe98dfa
CD
1667 (stars (concat (make-string (or (org-current-level) 1) ?*) " ")))
1668 (if info
1669 (mapc
1670 (lambda (place)
1671 (save-excursion
1672 (goto-char place)
1673 (let ((lang (nth 0 info))
1674 (indent (make-string (nth 5 info) ? )))
1675 (when (string-match "^[[:space:]]*$"
1676 (buffer-substring (point-at-bol)
1677 (point-at-eol)))
1678 (delete-region (point-at-bol) (point-at-eol)))
e66ba1df
BG
1679 (insert (concat
1680 (if (looking-at "^") "" "\n")
1681 indent "#+end_src\n"
1682 (if arg stars indent) "\n"
1683 indent "#+begin_src " lang
1684 (if (> (length headers) 1)
1685 (concat " " headers) headers)
1686 (if (looking-at "[\n\r]")
1687 ""
1688 (concat "\n" (make-string (current-column) ? )))))))
afe98dfa 1689 (move-end-of-line 2))
8223b1d2 1690 (sort (if (org-region-active-p) (list (mark) (point)) (list (point))) #'>))
afe98dfa
CD
1691 (let ((start (point))
1692 (lang (org-icompleting-read "Lang: "
1693 (mapcar (lambda (el) (symbol-name (car el)))
1694 org-babel-load-languages)))
1695 (body (delete-and-extract-region
8223b1d2 1696 (if (org-region-active-p) (mark) (point)) (point))))
afe98dfa
CD
1697 (insert (concat (if (looking-at "^") "" "\n")
1698 (if arg (concat stars "\n") "")
1699 "#+begin_src " lang "\n"
1700 body
1701 (if (or (= (length body) 0)
1702 (string-match "[\r\n]$" body)) "" "\n")
1703 "#+end_src\n"))
1704 (goto-char start) (move-end-of-line 1)))))
1705
86fbb8ca
CD
1706(defvar org-babel-lob-one-liner-regexp)
1707(defun org-babel-where-is-src-block-result (&optional insert info hash indent)
1708 "Find where the current source block results begin.
1709Return the point at the beginning of the result of the current
1710source block. Specifically at the beginning of the results line.
1711If no result exists for this block then create a results line
1712following the source block."
1713 (save-excursion
8223b1d2
BG
1714 (let* ((case-fold-search t)
1715 (on-lob-line (save-excursion
3ab2c837
BG
1716 (beginning-of-line 1)
1717 (looking-at org-babel-lob-one-liner-regexp)))
e66ba1df 1718 (inlinep (when (org-babel-get-inline-src-block-matches)
8223b1d2 1719 (match-end 0)))
86fbb8ca 1720 (name (if on-lob-line
153ae947 1721 (mapconcat #'identity (butlast (org-babel-lob-get-info)) "")
e66ba1df 1722 (nth 4 (or info (org-babel-get-src-block-info 'light)))))
86fbb8ca
CD
1723 (head (unless on-lob-line (org-babel-where-is-src-block-head)))
1724 found beg end)
1725 (when head (goto-char head))
1726 (setq
1727 found ;; was there a result (before we potentially insert one)
1728 (or
3ab2c837 1729 inlinep
86fbb8ca
CD
1730 (and
1731 ;; named results:
1732 ;; - return t if it is found, else return nil
1733 ;; - if it does not need to be rebuilt, then don't set end
1734 ;; - if it does need to be rebuilt then do set end
1735 name (setq beg (org-babel-find-named-result name))
1736 (prog1 beg
1737 (when (and hash (not (string= hash (match-string 3))))
1738 (goto-char beg) (setq end beg) ;; beginning of result
1739 (forward-line 1)
1740 (delete-region end (org-babel-result-end)) nil)))
1741 (and
1742 ;; unnamed results:
1743 ;; - return t if it is found, else return nil
1744 ;; - if it is found, and the hash doesn't match, delete and set end
1745 (or on-lob-line (re-search-forward "^[ \t]*#\\+end_src" nil t))
1746 (progn (end-of-line 1)
1747 (if (eobp) (insert "\n") (forward-char 1))
1748 (setq end (point))
1749 (or (and (not name)
1750 (progn ;; unnamed results line already exists
1751 (re-search-forward "[^ \f\t\n\r\v]" nil t)
1752 (beginning-of-line 1)
1753 (looking-at
1754 (concat org-babel-result-regexp "\n")))
1755 (prog1 (point)
1756 ;; must remove and rebuild if hash!=old-hash
1757 (if (and hash (not (string= hash (match-string 3))))
1758 (prog1 nil
1759 (forward-line 1)
1760 (delete-region
1761 end (org-babel-result-end)))
1762 (setq end nil)))))))))
1763 (if (and insert end)
1764 (progn
1765 (goto-char end)
1766 (unless beg
1767 (if (looking-at "[\n\r]") (forward-char 1) (insert "\n")))
1768 (insert (concat
1769 (if indent
1770 (mapconcat
1771 (lambda (el) " ")
afe98dfa 1772 (org-number-sequence 1 indent) "")
86fbb8ca 1773 "")
153ae947 1774 "#+" org-babel-results-keyword
86fbb8ca
CD
1775 (when hash (concat "["hash"]"))
1776 ":"
1777 (when name (concat " " name)) "\n"))
1778 (unless beg (insert "\n") (backward-char))
1779 (beginning-of-line 0)
1780 (if hash (org-babel-hide-hash))
1781 (point))
1782 found))))
1783
1784(defvar org-block-regexp)
1785(defun org-babel-read-result ()
1786 "Read the result at `point' into emacs-lisp."
1787 (let ((case-fold-search t) result-string)
1788 (cond
1789 ((org-at-table-p) (org-babel-read-table))
3ab2c837 1790 ((org-at-item-p) (org-babel-read-list))
86fbb8ca
CD
1791 ((looking-at org-bracket-link-regexp) (org-babel-read-link))
1792 ((looking-at org-block-regexp) (org-babel-trim (match-string 4)))
1793 ((looking-at "^[ \t]*: ")
1794 (setq result-string
1795 (org-babel-trim
1796 (mapconcat (lambda (line)
1797 (if (and (> (length line) 1)
1798 (string-match "^[ \t]*: \\(.+\\)" line))
1799 (match-string 1 line)
1800 line))
1801 (split-string
1802 (buffer-substring
1803 (point) (org-babel-result-end)) "[\r\n]+")
1804 "\n")))
1805 (or (org-babel-number-p result-string) result-string))
1806 ((looking-at org-babel-result-regexp)
1807 (save-excursion (forward-line 1) (org-babel-read-result))))))
1808
1809(defun org-babel-read-table ()
1810 "Read the table at `point' into emacs-lisp."
1811 (mapcar (lambda (row)
1812 (if (and (symbolp row) (equal row 'hline)) row
3ab2c837 1813 (mapcar (lambda (el) (org-babel-read el 'inhibit-lisp-eval)) row)))
86fbb8ca
CD
1814 (org-table-to-lisp)))
1815
acedf35c
CD
1816(defun org-babel-read-list ()
1817 "Read the list at `point' into emacs-lisp."
3ab2c837
BG
1818 (mapcar (lambda (el) (org-babel-read el 'inhibit-lisp-eval))
1819 (mapcar #'cadr (cdr (org-list-parse-list)))))
acedf35c 1820
86fbb8ca
CD
1821(defvar org-link-types-re)
1822(defun org-babel-read-link ()
1823 "Read the link at `point' into emacs-lisp.
1824If the path of the link is a file path it is expanded using
1825`expand-file-name'."
1826 (let* ((case-fold-search t)
1827 (raw (and (looking-at org-bracket-link-regexp)
8223b1d2 1828 (org-no-properties (match-string 1))))
86fbb8ca
CD
1829 (type (and (string-match org-link-types-re raw)
1830 (match-string 1 raw))))
1831 (cond
1832 ((not type) (expand-file-name raw))
1833 ((string= type "file")
1834 (and (string-match "file\\(.*\\):\\(.+\\)" raw)
1835 (expand-file-name (match-string 2 raw))))
1836 (t raw))))
1837
3ab2c837
BG
1838(defun org-babel-format-result (result &optional sep)
1839 "Format RESULT for writing to file."
8223b1d2 1840 (let ((echo-res (lambda (r) (if (stringp r) r (format "%S" r)))))
3ab2c837
BG
1841 (if (listp result)
1842 ;; table result
1843 (orgtbl-to-generic
8223b1d2 1844 result (list :sep (or sep "\t") :fmt echo-res))
3ab2c837 1845 ;; scalar result
8223b1d2 1846 (funcall echo-res result))))
3ab2c837 1847
86fbb8ca
CD
1848(defun org-babel-insert-result
1849 (result &optional result-params info hash indent lang)
1850 "Insert RESULT into the current buffer.
1851By default RESULT is inserted after the end of the
1852current source block. With optional argument RESULT-PARAMS
1853controls insertion of results in the org-mode file.
8223b1d2 1854RESULT-PARAMS can take the following values:
86fbb8ca
CD
1855
1856replace - (default option) insert results after the source block
1857 replacing any previously inserted results
1858
1859silent -- no results are inserted
1860
1861file ---- the results are interpreted as a file path, and are
1862 inserted into the buffer using the Org-mode file syntax
1863
acedf35c
CD
1864list ---- the results are interpreted as an Org-mode list.
1865
1866raw ----- results are added directly to the Org-mode file. This
86fbb8ca
CD
1867 is a good option if you code block will output org-mode
1868 formatted text.
1869
8223b1d2 1870drawer -- results are added directly to the Org-mode file as with
e66ba1df
BG
1871 \"raw\", but are wrapped in a RESULTS drawer, allowing
1872 them to later be replaced or removed automatically.
1873
8223b1d2
BG
1874org ----- results are added inside of a \"#+BEGIN_SRC org\" block.
1875 They are not comma-escaped when inserted, but Org syntax
1876 here will be discarded when exporting the file.
86fbb8ca
CD
1877
1878html ---- results are added inside of a #+BEGIN_HTML block. This
1879 is a good option if you code block will output html
1880 formatted text.
1881
1882latex --- results are added inside of a #+BEGIN_LATEX block.
1883 This is a good option if you code block will output
1884 latex formatted text.
1885
1886code ---- the results are extracted in the syntax of the source
1887 code of the language being evaluated and are added
1888 inside of a #+BEGIN_SRC block with the source-code
1889 language set appropriately. Note this relies on the
1890 optional LANG argument."
1891 (if (stringp result)
1892 (progn
8223b1d2 1893 (setq result (org-no-properties result))
86fbb8ca 1894 (when (member "file" result-params)
8223b1d2
BG
1895 (setq result (org-babel-result-to-file
1896 result (when (assoc :file-desc (nth 2 info))
1897 (or (cdr (assoc :file-desc (nth 2 info)))
1898 result))))))
86fbb8ca 1899 (unless (listp result) (setq result (format "%S" result))))
afe98dfa
CD
1900 (if (and result-params (member "silent" result-params))
1901 (progn
1902 (message (replace-regexp-in-string "%" "%%" (format "%S" result)))
1903 result)
afe98dfa 1904 (save-excursion
3ab2c837
BG
1905 (let* ((inlinep
1906 (save-excursion
e66ba1df
BG
1907 (when (or (org-babel-get-inline-src-block-matches)
1908 (org-babel-get-lob-one-liner-matches))
3ab2c837
BG
1909 (goto-char (match-end 0))
1910 (insert (if (listp result) "\n" " "))
1911 (point))))
1912 (existing-result (unless inlinep
1913 (org-babel-where-is-src-block-result
1914 t info hash indent)))
1915 (results-switches
1916 (cdr (assoc :results_switches (nth 2 info))))
1917 beg end)
1918 (when (and (stringp result) ; ensure results end in a newline
1919 (not inlinep)
1920 (> (length result) 0)
1921 (not (or (string-equal (substring result -1) "\n")
1922 (string-equal (substring result -1) "\r"))))
1923 (setq result (concat result "\n")))
afe98dfa 1924 (if (not existing-result)
3ab2c837 1925 (setq beg (or inlinep (point)))
afe98dfa
CD
1926 (goto-char existing-result)
1927 (save-excursion
1928 (re-search-forward "#" nil t)
1929 (setq indent (- (current-column) 1)))
1930 (forward-line 1)
1931 (setq beg (point))
86fbb8ca 1932 (cond
afe98dfa
CD
1933 ((member "replace" result-params)
1934 (delete-region (point) (org-babel-result-end)))
1935 ((member "append" result-params)
acedf35c
CD
1936 (goto-char (org-babel-result-end)) (setq beg (point-marker)))
1937 ((member "prepend" result-params)))) ; already there
afe98dfa
CD
1938 (setq results-switches
1939 (if results-switches (concat " " results-switches) ""))
bdebdb64 1940 (let ((wrap (lambda (start finish)
8223b1d2
BG
1941 (goto-char end) (insert (concat finish "\n"))
1942 (goto-char beg) (insert (concat start "\n"))
bdebdb64 1943 (org-escape-code-in-region (point) end)
8223b1d2
BG
1944 (goto-char end) (goto-char (point-at-eol))
1945 (setq end (point-marker))))
1946 (proper-list-p (lambda (it) (and (listp it) (null (cdr (last it)))))))
e66ba1df
BG
1947 ;; insert results based on type
1948 (cond
1949 ;; do nothing for an empty result
1950 ((null result))
1951 ;; insert a list if preferred
1952 ((member "list" result-params)
1953 (insert
1954 (org-babel-trim
1955 (org-list-to-generic
1956 (cons 'unordered
1957 (mapcar
1958 (lambda (el) (list nil (if (stringp el) el (format "%S" el))))
1959 (if (listp result) result (list result))))
1960 '(:splicep nil :istart "- " :iend "\n")))
1961 "\n"))
1962 ;; assume the result is a table if it's not a string
8223b1d2 1963 ((funcall proper-list-p result)
e66ba1df
BG
1964 (goto-char beg)
1965 (insert (concat (orgtbl-to-orgtbl
1966 (if (or (eq 'hline (car result))
1967 (and (listp (car result))
1968 (listp (cdr (car result)))))
1969 result (list result))
1970 '(:fmt (lambda (cell) (format "%s" cell)))) "\n"))
1971 (goto-char beg) (when (org-at-table-p) (org-table-align)))
8223b1d2 1972 ((and (listp result) (not (funcall proper-list-p result)))
e66ba1df
BG
1973 (insert (format "%s\n" result)))
1974 ((member "file" result-params)
1975 (when inlinep (goto-char inlinep))
1976 (insert result))
1977 (t (goto-char beg) (insert result)))
8223b1d2 1978 (when (funcall proper-list-p result) (goto-char (org-table-end)))
e66ba1df
BG
1979 (setq end (point-marker))
1980 ;; possibly wrap result
acedf35c 1981 (cond
8223b1d2
BG
1982 ((assoc :wrap (nth 2 info))
1983 (let ((name (or (cdr (assoc :wrap (nth 2 info))) "RESULTS")))
1984 (funcall wrap (concat "#+BEGIN_" name) (concat "#+END_" name))))
acedf35c 1985 ((member "html" result-params)
8223b1d2 1986 (funcall wrap "#+BEGIN_HTML" "#+END_HTML"))
acedf35c 1987 ((member "latex" result-params)
8223b1d2 1988 (funcall wrap "#+BEGIN_LaTeX" "#+END_LaTeX"))
acedf35c 1989 ((member "org" result-params)
bdebdb64 1990 (funcall wrap "#+BEGIN_SRC org" "#+END_SRC"))
8223b1d2
BG
1991 ((member "code" result-params)
1992 (funcall wrap (format "#+BEGIN_SRC %s%s" (or lang "none") results-switches)
1993 "#+END_SRC"))
acedf35c
CD
1994 ((member "raw" result-params)
1995 (goto-char beg) (if (org-at-table-p) (org-cycle)))
8223b1d2
BG
1996 ((or (member "drawer" result-params)
1997 ;; Stay backward compatible with <7.9.2
1998 (member "wrap" result-params))
1999 (funcall wrap ":RESULTS:" ":END:"))
2000 ((and (not (funcall proper-list-p result))
e66ba1df 2001 (not (member "file" result-params)))
acedf35c
CD
2002 (org-babel-examplize-region beg end results-switches)
2003 (setq end (point)))))
afe98dfa 2004 ;; possibly indent the results to match the #+results line
3ab2c837 2005 (when (and (not inlinep) (numberp indent) indent (> indent 0)
afe98dfa
CD
2006 ;; in this case `table-align' does the work for us
2007 (not (and (listp result)
2008 (member "append" result-params))))
2009 (indent-rigidly beg end indent))))
e66ba1df 2010 (if (null result)
afe98dfa 2011 (if (member "value" result-params)
acedf35c
CD
2012 (message "Code block returned no value.")
2013 (message "Code block produced no output."))
2014 (message "Code block evaluation complete."))))
86fbb8ca
CD
2015
2016(defun org-babel-remove-result (&optional info)
2017 "Remove the result of the current source block."
2018 (interactive)
2019 (let ((location (org-babel-where-is-src-block-result nil info)) start)
2020 (when location
e66ba1df 2021 (setq start (- location 1))
86fbb8ca 2022 (save-excursion
e66ba1df 2023 (goto-char location) (forward-line 1)
86fbb8ca
CD
2024 (delete-region start (org-babel-result-end))))))
2025
2026(defun org-babel-result-end ()
8223b1d2 2027 "Return the point at the end of the current set of results."
86fbb8ca 2028 (save-excursion
acedf35c
CD
2029 (cond
2030 ((org-at-table-p) (progn (goto-char (org-table-end)) (point)))
3ab2c837
BG
2031 ((org-at-item-p) (let* ((struct (org-list-struct))
2032 (prvs (org-list-prevs-alist struct)))
2033 (org-list-get-list-end (point-at-bol) struct prvs)))
8223b1d2 2034 ((let ((case-fold-search t)) (looking-at "^\\([ \t]*\\):results:"))
153ae947
BG
2035 (progn (re-search-forward (concat "^" (match-string 1) ":END:"))
2036 (forward-char 1) (point)))
acedf35c 2037 (t
8223b1d2
BG
2038 (let ((case-fold-search t))
2039 (if (looking-at (concat "[ \t]*#\\+begin_\\([^ \t\n\r]+\\)"))
2040 (progn (re-search-forward (concat "[ \t]*#\\+end_" (match-string 1))
2041 nil t)
3ab2c837 2042 (forward-char 1))
acedf35c
CD
2043 (while (looking-at "[ \t]*\\(: \\|\\[\\[\\)")
2044 (forward-line 1))))
2045 (point)))))
86fbb8ca 2046
8223b1d2
BG
2047(defun org-babel-result-to-file (result &optional description)
2048 "Convert RESULT into an `org-mode' link with optional DESCRIPTION.
86fbb8ca
CD
2049If the `default-directory' is different from the containing
2050file's directory then expand relative links."
8223b1d2
BG
2051 (when (stringp result)
2052 (format "[[file:%s]%s]"
2053 (if (and default-directory
2054 buffer-file-name
2055 (not (string= (expand-file-name default-directory)
2056 (expand-file-name
2057 (file-name-directory buffer-file-name)))))
2058 (expand-file-name result default-directory)
2059 result)
2060 (if description (concat "[" description "]") ""))))
86fbb8ca 2061
2a88ee23
BG
2062(defvar org-babel-capitalize-examplize-region-markers nil
2063 "Make true to capitalize begin/end example markers inserted by code blocks.")
2064
86fbb8ca 2065(defun org-babel-examplize-region (beg end &optional results-switches)
3ab2c837 2066 "Comment out region using the inline '==' or ': ' org example quote."
86fbb8ca 2067 (interactive "*r")
8223b1d2
BG
2068 (let ((chars-between (lambda (b e)
2069 (not (string-match "^[\\s]*$" (buffer-substring b e)))))
2070 (maybe-cap (lambda (str) (if org-babel-capitalize-examplize-region-markers
2071 (upcase str) str))))
2072 (if (or (funcall chars-between (save-excursion (goto-char beg) (point-at-bol)) beg)
2073 (funcall chars-between end (save-excursion (goto-char end) (point-at-eol))))
3ab2c837
BG
2074 (save-excursion
2075 (goto-char beg)
2076 (insert (format "=%s=" (prog1 (buffer-substring beg end)
2077 (delete-region beg end)))))
2078 (let ((size (count-lines beg end)))
2079 (save-excursion
2080 (cond ((= size 0)) ; do nothing for an empty result
2081 ((< size org-babel-min-lines-for-block-output)
2082 (goto-char beg)
2083 (dotimes (n size)
2084 (beginning-of-line 1) (insert ": ") (forward-line 1)))
2085 (t
2086 (goto-char beg)
2087 (insert (if results-switches
2a88ee23 2088 (format "%s%s\n"
8223b1d2 2089 (funcall maybe-cap "#+begin_example")
2a88ee23 2090 results-switches)
8223b1d2 2091 (funcall maybe-cap "#+begin_example\n")))
3ab2c837 2092 (if (markerp end) (goto-char end) (forward-char (- end beg)))
8223b1d2 2093 (insert (funcall maybe-cap "#+end_example\n")))))))))
86fbb8ca 2094
afe98dfa
CD
2095(defun org-babel-update-block-body (new-body)
2096 "Update the body of the current code block to NEW-BODY."
2097 (if (not (org-babel-where-is-src-block-head))
8223b1d2 2098 (error "Not in a source block")
afe98dfa 2099 (save-match-data
3ab2c837 2100 (replace-match (concat (org-babel-trim new-body) "\n") nil t nil 5))
afe98dfa
CD
2101 (indent-rigidly (match-beginning 5) (match-end 5) 2)))
2102
86fbb8ca
CD
2103(defun org-babel-merge-params (&rest plists)
2104 "Combine all parameter association lists in PLISTS.
3ab2c837 2105Later elements of PLISTS override the values of previous elements.
86fbb8ca
CD
2106This takes into account some special considerations for certain
2107parameters when merging lists."
8223b1d2
BG
2108 (let* ((results-exclusive-groups
2109 (mapcar (lambda (group) (mapcar #'symbol-name group))
2110 (cdr (assoc 'results org-babel-common-header-args-w-values))))
2111 (exports-exclusive-groups
2112 (mapcar (lambda (group) (mapcar #'symbol-name group))
2113 (cdr (assoc 'exports org-babel-common-header-args-w-values))))
2114 (variable-index 0)
2115 (e-merge (lambda (exclusive-groups &rest result-params)
2116 ;; maintain exclusivity of mutually exclusive parameters
2117 (let (output)
2118 (mapc (lambda (new-params)
2119 (mapc (lambda (new-param)
2120 (mapc (lambda (exclusive-group)
2121 (when (member new-param exclusive-group)
2122 (mapcar (lambda (excluded-param)
2123 (setq output
2124 (delete
2125 excluded-param
2126 output)))
2127 exclusive-group)))
2128 exclusive-groups)
2129 (setq output (org-uniquify
2130 (cons new-param output))))
2131 new-params))
2132 result-params)
2133 output)))
2134 params results exports tangle noweb cache vars shebang comments padline)
2135
2136 (mapc
2137 (lambda (plist)
2138 (mapc
2139 (lambda (pair)
2140 (case (car pair)
2141 (:var
2142 (let ((name (if (listp (cdr pair))
2143 (cadr pair)
2144 (and (string-match "^\\([^= \f\t\n\r\v]+\\)[ \t]*="
2145 (cdr pair))
2146 (intern (match-string 1 (cdr pair)))))))
2147 (if name
2148 (setq vars
2149 (append
2150 (if (member name (mapcar #'car vars))
2151 (delq nil
2152 (mapcar
2153 (lambda (p)
2154 (unless (equal (car p) name) p))
2155 vars))
2156 vars)
2157 (list (cons name pair))))
2158 ;; if no name is given and we already have named variables
2159 ;; then assign to named variables in order
2160 (if (and vars (nth variable-index vars))
2161 (prog1 (setf (cddr (nth variable-index vars))
2162 (concat (symbol-name
2163 (car (nth variable-index vars)))
2164 "=" (cdr pair)))
2165 (incf variable-index))
2166 (error "Variable \"%s\" must be assigned a default value"
2167 (cdr pair))))))
2168 (:results
2169 (setq results (funcall e-merge results-exclusive-groups
2170 results
2171 (split-string
2172 (let ((r (cdr pair)))
2173 (if (stringp r) r (eval r)))))))
2174 (:file
2175 (when (cdr pair)
2176 (setq results (funcall e-merge results-exclusive-groups
2177 results '("file")))
2178 (unless (or (member "both" exports)
2179 (member "none" exports)
2180 (member "code" exports))
2181 (setq exports (funcall e-merge exports-exclusive-groups
2182 exports '("results"))))
2183 (setq params (cons pair (assq-delete-all (car pair) params)))))
2184 (:exports
2185 (setq exports (funcall e-merge exports-exclusive-groups
2186 exports (split-string (cdr pair)))))
2187 (:tangle ;; take the latest -- always overwrite
2188 (setq tangle (or (list (cdr pair)) tangle)))
2189 (:noweb
2190 (setq noweb (funcall e-merge
2191 '(("yes" "no" "tangle" "no-export"
2192 "strip-export" "eval"))
2193 noweb
2194 (split-string (or (cdr pair) "")))))
2195 (:cache
2196 (setq cache (funcall e-merge '(("yes" "no")) cache
2197 (split-string (or (cdr pair) "")))))
2198 (:padline
2199 (setq padline (funcall e-merge '(("yes" "no")) padline
afe98dfa 2200 (split-string (or (cdr pair) "")))))
8223b1d2
BG
2201 (:shebang ;; take the latest -- always overwrite
2202 (setq shebang (or (list (cdr pair)) shebang)))
2203 (:comments
2204 (setq comments (funcall e-merge '(("yes" "no")) comments
2205 (split-string (or (cdr pair) "")))))
2206 (t ;; replace: this covers e.g. :session
2207 (setq params (cons pair (assq-delete-all (car pair) params))))))
2208 plist))
2209 plists)
3ab2c837 2210 (setq vars (reverse vars))
afe98dfa 2211 (while vars (setq params (cons (cons :var (cddr (pop vars))) params)))
3ab2c837
BG
2212 (mapc
2213 (lambda (hd)
2214 (let ((key (intern (concat ":" (symbol-name hd))))
2215 (val (eval hd)))
2216 (setf params (cons (cons key (mapconcat 'identity val " ")) params))))
2217 '(results exports tangle noweb padline cache shebang comments))
2218 params))
86fbb8ca 2219
e66ba1df
BG
2220(defvar *org-babel-use-quick-and-dirty-noweb-expansion* nil
2221 "Set to true to use regular expressions to expand noweb references.
2222This results in much faster noweb reference expansion but does
2223not properly allow code blocks to inherit the \":noweb-ref\"
2224header argument from buffer or subtree wide properties.")
2225
8223b1d2
BG
2226(defun org-babel-noweb-p (params context)
2227 "Check if PARAMS require expansion in CONTEXT.
2228CONTEXT may be one of :tangle, :export or :eval."
2229 (let* (intersect
2230 (intersect (lambda (as bs)
2231 (when as
2232 (if (member (car as) bs)
2233 (car as)
2234 (funcall intersect (cdr as) bs))))))
2235 (funcall intersect (case context
2236 (:tangle '("yes" "tangle" "no-export" "strip-export"))
2237 (:eval '("yes" "no-export" "strip-export" "eval"))
2238 (:export '("yes")))
2239 (split-string (or (cdr (assoc :noweb params)) "")))))
2240
86fbb8ca
CD
2241(defun org-babel-expand-noweb-references (&optional info parent-buffer)
2242 "Expand Noweb references in the body of the current source code block.
2243
2244For example the following reference would be replaced with the
2245body of the source-code block named 'example-block'.
2246
2247<<example-block>>
2248
2249Note that any text preceding the <<foo>> construct on a line will
2250be interposed between the lines of the replacement text. So for
2251example if <<foo>> is placed behind a comment, then the entire
2252replacement text will also be commented.
2253
2254This function must be called from inside of the buffer containing
2255the source-code block which holds BODY.
2256
2257In addition the following syntax can be used to insert the
2258results of evaluating the source-code block named 'example-block'.
2259
2260<<example-block()>>
2261
2262Any optional arguments can be passed to example-block by placing
2263the arguments inside the parenthesis following the convention
2264defined by `org-babel-lob'. For example
2265
2266<<example-block(a=9)>>
2267
2268would set the value of argument \"a\" equal to \"9\". Note that
2269these arguments are not evaluated in the current source-code
2270block but are passed literally to the \"example-block\"."
2271 (let* ((parent-buffer (or parent-buffer (current-buffer)))
2272 (info (or info (org-babel-get-src-block-info)))
2273 (lang (nth 0 info))
2274 (body (nth 1 info))
8223b1d2
BG
2275 (ob-nww-start org-babel-noweb-wrap-start)
2276 (ob-nww-end org-babel-noweb-wrap-end)
3ab2c837 2277 (comment (string= "noweb" (cdr (assoc :comments (nth 2 info)))))
e66ba1df
BG
2278 (rx-prefix (concat "\\(" org-babel-src-name-regexp "\\|"
2279 ":noweb-ref[ \t]+" "\\)"))
8223b1d2
BG
2280 (new-body "")
2281 (nb-add (lambda (text) (setq new-body (concat new-body text))))
2282 (c-wrap (lambda (text)
3ab2c837
BG
2283 (with-temp-buffer
2284 (funcall (intern (concat lang "-mode")))
2285 (comment-region (point) (progn (insert text) (point)))
e66ba1df 2286 (org-babel-trim (buffer-string)))))
8223b1d2
BG
2287 index source-name evaluate prefix blocks-in-buffer)
2288 (with-temp-buffer
2289 (org-set-local 'org-babel-noweb-wrap-start ob-nww-start)
2290 (org-set-local 'org-babel-noweb-wrap-end ob-nww-end)
2291 (insert body) (goto-char (point-min))
2292 (setq index (point))
2293 (while (and (re-search-forward (org-babel-noweb-wrap) nil t))
2294 (save-match-data (setf source-name (match-string 1)))
2295 (save-match-data (setq evaluate (string-match "\(.*\)" source-name)))
2296 (save-match-data
2297 (setq prefix
2298 (buffer-substring (match-beginning 0)
2299 (save-excursion
2300 (beginning-of-line 1) (point)))))
2301 ;; add interval to new-body (removing noweb reference)
2302 (goto-char (match-beginning 0))
2303 (funcall nb-add (buffer-substring index (point)))
2304 (goto-char (match-end 0))
2305 (setq index (point))
2306 (funcall nb-add
2307 (with-current-buffer parent-buffer
2308 (save-restriction
2309 (widen)
2310 (mapconcat ;; interpose PREFIX between every line
2311 #'identity
2312 (split-string
2313 (if evaluate
2314 (let ((raw (org-babel-ref-resolve source-name)))
2315 (if (stringp raw) raw (format "%S" raw)))
2316 (or
2317 ;; retrieve from the library of babel
2318 (nth 2 (assoc (intern source-name)
2319 org-babel-library-of-babel))
2320 ;; return the contents of headlines literally
2321 (save-excursion
2322 (when (org-babel-ref-goto-headline-id source-name)
2323 (org-babel-ref-headline-body)))
2324 ;; find the expansion of reference in this buffer
2325 (let ((rx (concat rx-prefix source-name "[ \t\n]"))
2326 expansion)
2327 (save-excursion
2328 (goto-char (point-min))
2329 (if *org-babel-use-quick-and-dirty-noweb-expansion*
2330 (while (re-search-forward rx nil t)
2331 (let* ((i (org-babel-get-src-block-info 'light))
2332 (body (org-babel-expand-noweb-references i))
2333 (sep (or (cdr (assoc :noweb-sep (nth 2 i)))
2334 "\n"))
2335 (full (if comment
2336 ((lambda (cs)
2337 (concat (funcall c-wrap (car cs)) "\n"
2338 body "\n"
2339 (funcall c-wrap (cadr cs))))
2340 (org-babel-tangle-comment-links i))
2341 body)))
2342 (setq expansion (cons sep (cons full expansion)))))
2343 (org-babel-map-src-blocks nil
2344 (let ((i (org-babel-get-src-block-info 'light)))
2345 (when (equal (or (cdr (assoc :noweb-ref (nth 2 i)))
2346 (nth 4 i))
2347 source-name)
2348 (let* ((body (org-babel-expand-noweb-references i))
2349 (sep (or (cdr (assoc :noweb-sep (nth 2 i)))
2350 "\n"))
2351 (full (if comment
2352 ((lambda (cs)
2353 (concat (funcall c-wrap (car cs)) "\n"
2354 body "\n"
2355 (funcall c-wrap (cadr cs))))
2356 (org-babel-tangle-comment-links i))
2357 body)))
2358 (setq expansion
2359 (cons sep (cons full expansion)))))))))
2360 (and expansion
2361 (mapconcat #'identity (nreverse (cdr expansion)) "")))
2362 ;; possibly raise an error if named block doesn't exist
2363 (if (member lang org-babel-noweb-error-langs)
2364 (error "%s" (concat
2365 (org-babel-noweb-wrap source-name)
2366 "could not be resolved (see "
2367 "`org-babel-noweb-error-langs')"))
2368 "")))
2369 "[\n\r]") (concat "\n" prefix))))))
2370 (funcall nb-add (buffer-substring index (point-max))))
86fbb8ca
CD
2371 new-body))
2372
3ab2c837 2373(defun org-babel-script-escape (str &optional force)
acedf35c
CD
2374 "Safely convert tables into elisp lists."
2375 (let (in-single in-double out)
3ab2c837
BG
2376 ((lambda (escaped) (condition-case nil (org-babel-read escaped) (error escaped)))
2377 (if (or force
2378 (and (stringp str)
2379 (> (length str) 2)
2380 (or (and (string-equal "[" (substring str 0 1))
2381 (string-equal "]" (substring str -1)))
2382 (and (string-equal "{" (substring str 0 1))
2383 (string-equal "}" (substring str -1)))
2384 (and (string-equal "(" (substring str 0 1))
2385 (string-equal ")" (substring str -1))))))
acedf35c
CD
2386 (org-babel-read
2387 (concat
2388 "'"
2389 (progn
2390 (mapc
2391 (lambda (ch)
2392 (setq
2393 out
2394 (case ch
2395 (91 (if (or in-double in-single) ; [
2396 (cons 91 out)
2397 (cons 40 out)))
2398 (93 (if (or in-double in-single) ; ]
2399 (cons 93 out)
2400 (cons 41 out)))
3ab2c837
BG
2401 (123 (if (or in-double in-single) ; {
2402 (cons 123 out)
2403 (cons 40 out)))
2404 (125 (if (or in-double in-single) ; }
2405 (cons 125 out)
2406 (cons 41 out)))
2407 (44 (if (or in-double in-single) ; ,
2408 (cons 44 out) (cons 32 out)))
acedf35c
CD
2409 (39 (if in-double ; '
2410 (cons 39 out)
2411 (setq in-single (not in-single)) (cons 34 out)))
2412 (34 (if in-single ; "
2413 (append (list 34 32) out)
2414 (setq in-double (not in-double)) (cons 34 out)))
2415 (t (cons ch out)))))
2416 (string-to-list str))
2417 (apply #'string (reverse out)))))
2418 str))))
2419
3ab2c837 2420(defun org-babel-read (cell &optional inhibit-lisp-eval)
86fbb8ca
CD
2421 "Convert the string value of CELL to a number if appropriate.
2422Otherwise if cell looks like lisp (meaning it starts with a
3ab2c837
BG
2423\"(\", \"'\", \"`\" or a \"[\") then read it as lisp, otherwise
2424return it unmodified as a string. Optional argument NO-LISP-EVAL
2425inhibits lisp evaluation for situations in which is it not
2426appropriate."
86fbb8ca
CD
2427 (if (and (stringp cell) (not (equal cell "")))
2428 (or (org-babel-number-p cell)
3ab2c837
BG
2429 (if (and (not inhibit-lisp-eval)
2430 (member (substring cell 0 1) '("(" "'" "`" "[")))
86fbb8ca 2431 (eval (read cell))
3ab2c837
BG
2432 (if (string= (substring cell 0 1) "\"")
2433 (read cell)
2434 (progn (set-text-properties 0 (length cell) nil cell) cell))))
86fbb8ca
CD
2435 cell))
2436
2437(defun org-babel-number-p (string)
a98edce9 2438 "If STRING represents a number return its value."
86fbb8ca
CD
2439 (if (and (string-match "^-?[0-9]*\\.?[0-9]*$" string)
2440 (= (length (substring string (match-beginning 0)
2441 (match-end 0)))
2442 (length string)))
2443 (string-to-number string)))
2444
afe98dfa 2445(defun org-babel-import-elisp-from-file (file-name &optional separator)
86fbb8ca
CD
2446 "Read the results located at FILE-NAME into an elisp table.
2447If the table is trivial, then return it as a scalar."
2448 (let (result)
2449 (save-window-excursion
2450 (with-temp-buffer
8223b1d2 2451 (condition-case err
86fbb8ca 2452 (progn
afe98dfa 2453 (org-table-import file-name separator)
86fbb8ca
CD
2454 (delete-file file-name)
2455 (setq result (mapcar (lambda (row)
2456 (mapcar #'org-babel-string-read row))
2457 (org-table-to-lisp))))
8223b1d2 2458 (error (message "Error reading results: %s" err) nil)))
86fbb8ca
CD
2459 (if (null (cdr result)) ;; if result is trivial vector, then scalarize it
2460 (if (consp (car result))
2461 (if (null (cdr (car result)))
2462 (caar result)
2463 result)
2464 (car result))
2465 result))))
2466
2467(defun org-babel-string-read (cell)
2468 "Strip nested \"s from around strings."
2469 (org-babel-read (or (and (stringp cell)
2470 (string-match "\\\"\\(.+\\)\\\"" cell)
2471 (match-string 1 cell))
8223b1d2 2472 cell) t))
86fbb8ca
CD
2473
2474(defun org-babel-reverse-string (string)
2475 "Return the reverse of STRING."
2476 (apply 'string (reverse (string-to-list string))))
2477
2478(defun org-babel-chomp (string &optional regexp)
2479 "Strip trailing spaces and carriage returns from STRING.
2480Default regexp used is \"[ \f\t\n\r\v]\" but can be
2481overwritten by specifying a regexp as a second argument."
2482 (let ((regexp (or regexp "[ \f\t\n\r\v]")))
2483 (while (and (> (length string) 0)
2484 (string-match regexp (substring string -1)))
2485 (setq string (substring string 0 -1)))
2486 string))
2487
2488(defun org-babel-trim (string &optional regexp)
2489 "Strip leading and trailing spaces and carriage returns from STRING.
2490Like `org-babel-chomp' only it runs on both the front and back
2491of the string."
2492 (org-babel-chomp (org-babel-reverse-string
2493 (org-babel-chomp (org-babel-reverse-string string) regexp))
2494 regexp))
2495
2496(defvar org-babel-org-babel-call-process-region-original nil)
2497(defun org-babel-tramp-handle-call-process-region
2498 (start end program &optional delete buffer display &rest args)
8223b1d2 2499 "Use Tramp to handle `call-process-region'.
86fbb8ca
CD
2500Fixes a bug in `tramp-handle-call-process-region'."
2501 (if (and (featurep 'tramp) (file-remote-p default-directory))
2502 (let ((tmpfile (tramp-compat-make-temp-file "")))
2503 (write-region start end tmpfile)
2504 (when delete (delete-region start end))
2505 (unwind-protect
2506 ;; (apply 'call-process program tmpfile buffer display args)
2507 ;; bug in tramp
2508 (apply 'process-file program tmpfile buffer display args)
2509 (delete-file tmpfile)))
afe98dfa 2510 ;; org-babel-call-process-region-original is the original emacs
8223b1d2 2511 ;; definition. It is in scope from the let binding in
afe98dfa 2512 ;; org-babel-execute-src-block
86fbb8ca
CD
2513 (apply org-babel-call-process-region-original
2514 start end program delete buffer display args)))
2515
afe98dfa
CD
2516(defun org-babel-local-file-name (file)
2517 "Return the local name component of FILE."
2518 (if (file-remote-p file)
2519 (let (localname)
2520 (with-parsed-tramp-file-name file nil
8223b1d2 2521 localname))
86fbb8ca
CD
2522 file))
2523
afe98dfa
CD
2524(defun org-babel-process-file-name (name &optional no-quote-p)
2525 "Prepare NAME to be used in an external process.
2526If NAME specifies a remote location, the remote portion of the
2527name is removed, since in that case the process will be executing
8223b1d2
BG
2528remotely. The file name is then processed by `expand-file-name'.
2529Unless second argument NO-QUOTE-P is non-nil, the file name is
2530additionally processed by `shell-quote-argument'"
afe98dfa
CD
2531 ((lambda (f) (if no-quote-p f (shell-quote-argument f)))
2532 (expand-file-name (org-babel-local-file-name name))))
2533
2534(defvar org-babel-temporary-directory)
2535(unless (or noninteractive (boundp 'org-babel-temporary-directory))
2536 (defvar org-babel-temporary-directory
2537 (or (and (boundp 'org-babel-temporary-directory)
2538 (file-exists-p org-babel-temporary-directory)
2539 org-babel-temporary-directory)
2540 (make-temp-file "babel-" t))
2541 "Directory to hold temporary files created to execute code blocks.
2542Used by `org-babel-temp-file'. This directory will be removed on
2543Emacs shutdown."))
2544
2545(defun org-babel-temp-file (prefix &optional suffix)
2546 "Create a temporary file in the `org-babel-temporary-directory'.
2547Passes PREFIX and SUFFIX directly to `make-temp-file' with the
2548value of `temporary-file-directory' temporarily set to the value
2549of `org-babel-temporary-directory'."
006faa41
MA
2550 (let ((temporary-file-directory
2551 (if (file-remote-p default-directory)
2552 (concat (file-remote-p default-directory) "/tmp")
3ab2c837
BG
2553 (or (and (boundp 'org-babel-temporary-directory)
2554 (file-exists-p org-babel-temporary-directory)
afe98dfa 2555 org-babel-temporary-directory)
006faa41
MA
2556 temporary-file-directory))))
2557 (make-temp-file prefix nil suffix)))
afe98dfa
CD
2558
2559(defun org-babel-remove-temporary-directory ()
2560 "Remove `org-babel-temporary-directory' on Emacs shutdown."
2561 (when (and (boundp 'org-babel-temporary-directory)
2562 (file-exists-p org-babel-temporary-directory))
2563 ;; taken from `delete-directory' in files.el
acedf35c
CD
2564 (condition-case nil
2565 (progn
2566 (mapc (lambda (file)
2567 ;; This test is equivalent to
2568 ;; (and (file-directory-p fn) (not (file-symlink-p fn)))
2569 ;; but more efficient
2570 (if (eq t (car (file-attributes file)))
2571 (delete-directory file)
2572 (delete-file file)))
2573 ;; We do not want to delete "." and "..".
2574 (directory-files org-babel-temporary-directory 'full
2575 "^\\([^.]\\|\\.\\([^.]\\|\\..\\)\\).*"))
2576 (delete-directory org-babel-temporary-directory))
2577 (error
2578 (message "Failed to remove temporary Org-babel directory %s"
3ab2c837
BG
2579 (if (boundp 'org-babel-temporary-directory)
2580 org-babel-temporary-directory
2581 "[directory not defined]"))))))
afe98dfa
CD
2582
2583(add-hook 'kill-emacs-hook 'org-babel-remove-temporary-directory)
2584
86fbb8ca
CD
2585(provide 'ob)
2586
bdebdb64
BG
2587;; Local variables:
2588;; generated-autoload-file: "org-loaddefs.el"
2589;; End:
86fbb8ca
CD
2590
2591;;; ob.el ends here