Function: org-babel-exp-process-buffer
org-babel-exp-process-buffer is an interactive and byte-compiled
function defined in ob-exp.el.gz.
Signature
(org-babel-exp-process-buffer)
Documentation
Execute all Babel blocks in current buffer.
Key Bindings
Source Code
;; Defined in /usr/src/emacs/lisp/org/ob-exp.el.gz
(defun org-babel-exp-process-buffer ()
"Execute all Babel blocks in current buffer."
(interactive)
(when org-export-use-babel
(save-window-excursion
(let ((case-fold-search t)
(regexp "\\(call\\|src\\)_\\|^[ \t]*#\\+\\(BEGIN_SRC\\|CALL:\\)")
;; Get a pristine copy of current buffer so Babel
;; references are properly resolved and source block
;; context is preserved.
(org-babel-exp-reference-buffer (org-export-copy-buffer))
element)
(unwind-protect
(save-excursion
;; First attach to every source block their original
;; position, so that they can be retrieved within
;; `org-babel-exp-reference-buffer', even after heavy
;; modifications on current buffer.
;;
;; False positives are harmless, so we don't check if
;; we're really at some Babel object. Moreover,
;; `line-end-position' ensures that we propertize
;; a noticeable part of the object, without affecting
;; multiple objects on the same line.
(goto-char (point-min))
(while (re-search-forward regexp nil t)
(let ((s (match-beginning 0)))
(put-text-property s (line-end-position) 'org-reference s)))
;; Evaluate from top to bottom every Babel block
;; encountered.
(goto-char (point-min))
;; We are about to do a large number of changes in
;; buffer, but we do not care about folding in this
;; buffer.
(org-fold-core-ignore-modifications
(while (re-search-forward regexp nil t)
(setq element (org-element-at-point))
(unless (save-match-data
(or (org-in-commented-heading-p nil element)
(org-in-archived-heading-p nil element)))
(let* ((object? (match-end 1))
(element (save-match-data
(if object?
(org-element-context element)
;; No deep inspection if we're
;; just looking for an element.
element)))
(type
(pcase (org-element-type element)
;; Discard block elements if we're looking
;; for inline objects. False results
;; happen when, e.g., "call_" syntax is
;; located within affiliated keywords:
;;
;; #+name: call_src
;; #+begin_src ...
((and (or `babel-call `src-block) (guard object?))
nil)
(type type)))
(begin
(copy-marker (org-element-property :begin element)))
(end
(copy-marker
(save-excursion
(goto-char (org-element-property :end element))
(skip-chars-backward " \r\t\n")
(point)))))
(pcase type
(`inline-src-block
(let* ((info
(org-babel-get-src-block-info nil element))
(params (nth 2 info)))
(setf (nth 1 info)
(if (and (cdr (assq :noweb params))
(string= "yes"
(cdr (assq :noweb params))))
(org-babel-expand-noweb-references
info org-babel-exp-reference-buffer)
(nth 1 info)))
(goto-char begin)
(let ((replacement
(org-babel-exp-do-export info 'inline)))
(if (equal replacement "")
;; Replacement code is empty: remove
;; inline source block, including extra
;; white space that might have been
;; created when inserting results.
(delete-region begin
(progn (goto-char end)
(skip-chars-forward " \t")
(point)))
;; Otherwise: remove inline source block
;; but preserve following white spaces.
;; Then insert value.
(unless (string= replacement
(buffer-substring begin end))
(delete-region begin end)
(insert replacement))))))
((or `babel-call `inline-babel-call)
(org-babel-exp-do-export
(or (org-babel-lob-get-info element)
(user-error "Unknown Babel reference: %s"
(org-element-property :call element)))
'lob)
(let ((rep
(org-fill-template
org-babel-exp-call-line-template
`(("line" .
,(org-element-property :value element))))))
;; If replacement is empty, completely remove
;; the object/element, including any extra
;; white space that might have been created
;; when including results.
(if (equal rep "")
(delete-region
begin
(progn (goto-char end)
(if (not (eq type 'babel-call))
(progn (skip-chars-forward " \t")
(point))
(skip-chars-forward " \r\t\n")
(line-beginning-position))))
;; Otherwise, preserve trailing
;; spaces/newlines and then, insert
;; replacement string.
(goto-char begin)
(delete-region begin end)
(insert rep))))
(`src-block
(let ((match-start (copy-marker (match-beginning 0)))
(ind (org-current-text-indentation)))
;; Take care of matched block: compute
;; replacement string. In particular, a nil
;; REPLACEMENT means the block is left as-is
;; while an empty string removes the block.
(let ((replacement
(progn (goto-char match-start)
(org-babel-exp-src-block element))))
(cond ((not replacement) (goto-char end))
((equal replacement "")
(goto-char end)
(skip-chars-forward " \r\t\n")
(beginning-of-line)
(delete-region begin (point)))
(t
(if (or org-src-preserve-indentation
(org-element-property
:preserve-indent element))
;; Indent only code block
;; markers.
(with-temp-buffer
;; Do not use tabs for block
;; indentation.
(when (fboundp 'indent-tabs-mode)
(indent-tabs-mode -1)
;; FIXME: Emacs 26
;; compatibility.
(setq-local indent-tabs-mode nil))
(insert replacement)
(skip-chars-backward " \r\t\n")
(indent-line-to ind)
(goto-char 1)
(indent-line-to ind)
(setq replacement (buffer-string)))
;; Indent everything.
(with-temp-buffer
;; Do not use tabs for block
;; indentation.
(when (fboundp 'indent-tabs-mode)
(indent-tabs-mode -1)
;; FIXME: Emacs 26
;; compatibility.
(setq-local indent-tabs-mode nil))
(insert replacement)
(indent-rigidly
1 (point) ind)
(setq replacement (buffer-string))))
(goto-char match-start)
(let ((rend (save-excursion
(goto-char end)
(line-end-position))))
(if (string-equal replacement
(buffer-substring match-start rend))
(goto-char rend)
(delete-region match-start
(save-excursion
(goto-char end)
(line-end-position)))
(insert replacement))))))
(set-marker match-start nil))))
(set-marker begin nil)
(set-marker end nil))))))
(kill-buffer org-babel-exp-reference-buffer)
(remove-text-properties (point-min) (point-max)
'(org-reference nil)))))))