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138 lines
4.7 KiB
EmacsLisp
138 lines
4.7 KiB
EmacsLisp
;;; ob-lob.el --- functions supporting the Library of Babel
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;; Copyright (C) 2009-2012 Free Software Foundation, Inc.
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;; Authors: Eric Schulte
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;; Dan Davison
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;; Keywords: literate programming, reproducible research
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;; Homepage: http://orgmode.org
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;; This file is part of GNU Emacs.
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;; GNU Emacs is free software: you can redistribute it and/or modify
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;; it under the terms of the GNU General Public License as published by
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;; the Free Software Foundation, either version 3 of the License, or
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;; (at your option) any later version.
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;; GNU Emacs is distributed in the hope that it will be useful,
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;; but WITHOUT ANY WARRANTY; without even the implied warranty of
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;; MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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;; GNU General Public License for more details.
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;; You should have received a copy of the GNU General Public License
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;; along with GNU Emacs. If not, see <http://www.gnu.org/licenses/>.
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;;; Code:
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(eval-when-compile
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(require 'cl))
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(require 'ob)
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(require 'ob-table)
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(declare-function org-babel-in-example-or-verbatim "ob-exp" nil)
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(defvar org-babel-library-of-babel nil
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"Library of source-code blocks.
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This is an association list. Populate the library by adding
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files to `org-babel-lob-files'.")
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(defcustom org-babel-lob-files '()
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"Files used to populate the `org-babel-library-of-babel'.
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To add files to this list use the `org-babel-lob-ingest' command."
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:group 'org-babel
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:version "24.1"
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:type 'list)
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(defvar org-babel-default-lob-header-args '((:exports . "results"))
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"Default header arguments to use when exporting #+lob/call lines.")
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;;;###autoload
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(defun org-babel-lob-ingest (&optional file)
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"Add all named source-blocks defined in FILE to
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`org-babel-library-of-babel'."
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(interactive "fFile: ")
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(let ((lob-ingest-count 0))
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(org-babel-map-src-blocks file
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(let* ((info (org-babel-get-src-block-info 'light))
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(source-name (nth 4 info)))
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(when source-name
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(setq source-name (intern source-name)
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org-babel-library-of-babel
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(cons (cons source-name info)
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(assq-delete-all source-name org-babel-library-of-babel))
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lob-ingest-count (1+ lob-ingest-count)))))
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(message "%d src block%s added to Library of Babel"
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lob-ingest-count (if (> lob-ingest-count 1) "s" ""))
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lob-ingest-count))
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(defconst org-babel-block-lob-one-liner-regexp
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(concat
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"^\\([ \t]*?\\)#\\+call:[ \t]+\\([^\(\)\n]+?\\)\\(\\[\\(.*\\)\\]\\|\\(\\)\\)"
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"\(\\([^\n]*?\\)\)\\(\\[.+\\]\\|\\)[ \t]*\\(\\([^\n]*\\)\\)?")
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"Regexp to match non-inline calls to predefined source block functions.")
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(defconst org-babel-inline-lob-one-liner-regexp
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(concat
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"\\([^\n]*?\\)call_\\([^\(\)\n]+?\\)\\(\\[\\(.*?\\)\\]\\|\\(\\)\\)"
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"\(\\([^\n]*?\\)\)\\(\\[\\(.*?\\)\\]\\)?")
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"Regexp to match inline calls to predefined source block functions.")
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(defconst org-babel-lob-one-liner-regexp
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(concat "\\(" org-babel-block-lob-one-liner-regexp
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"\\|" org-babel-inline-lob-one-liner-regexp "\\)")
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"Regexp to match calls to predefined source block functions.")
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;; functions for executing lob one-liners
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;;;###autoload
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(defun org-babel-lob-execute-maybe ()
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"Execute a Library of Babel source block, if appropriate.
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Detect if this is context for a Library Of Babel source block and
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if so then run the appropriate source block from the Library."
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(interactive)
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(let ((info (org-babel-lob-get-info)))
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(if (and (nth 0 info) (not (org-babel-in-example-or-verbatim)))
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(progn (org-babel-lob-execute info) t)
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nil)))
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;;;###autoload
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(defun org-babel-lob-get-info ()
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"Return a Library of Babel function call as a string."
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(flet ((nonempty (a b)
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(let ((it (match-string a)))
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(if (= (length it) 0) (match-string b) it))))
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(let ((case-fold-search t))
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(save-excursion
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(beginning-of-line 1)
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(when (looking-at org-babel-lob-one-liner-regexp)
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(append
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(mapcar #'org-babel-clean-text-properties
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(list
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(format "%s%s(%s)%s"
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(nonempty 3 12)
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(if (not (= 0 (length (nonempty 5 14))))
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(concat "[" (nonempty 5 14) "]") "")
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(or (nonempty 7 16) "")
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(or (nonempty 8 19) ""))
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(nonempty 9 18)))
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(list (length (if (= (length (match-string 12)) 0)
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(match-string 2) (match-string 11))))))))))
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(defun org-babel-lob-execute (info)
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"Execute the lob call specified by INFO."
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(let ((params (org-babel-process-params
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(org-babel-merge-params
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org-babel-default-header-args
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(org-babel-params-from-properties)
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(org-babel-parse-header-arguments
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(org-babel-clean-text-properties
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(concat ":var results="
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(mapconcat #'identity (butlast info) " "))))))))
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(org-babel-execute-src-block
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nil (list "emacs-lisp" "results" params nil nil (nth 2 info)))))
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(provide 'ob-lob)
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;;; ob-lob.el ends here
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