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[elpa] externals/org eed4708b66: org-babel: Add new :results discard hea
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[elpa] externals/org eed4708b66: org-babel: Add new :results discard header argument |
Date: |
Sat, 26 Nov 2022 19:57:55 -0500 (EST) |
branch: externals/org
commit eed4708b6638e2b3c46dfbece018ab8854400d6e
Author: Ihor Radchenko <yantar92@posteo.net>
Commit: Ihor Radchenko <yantar92@posteo.net>
org-babel: Add new :results discard header argument
* lisp/ob-core.el (org-babel-result-cond): Unconditionally return nil
and suppress all the processing for :results discard.
(org-babel-common-header-args-w-values):
(org-babel-sha1-hash): Add the new value to know :results value list.
* doc/org-manual.org (Handling):
* etc/ORG-NEWS (New =:results discard= header argument): Document the
new value.
Reported-by: Daniel Ortmann <daniel.ortmann@oracle.com>
Link: https://orgmode.org/list/87tu2tjary.fsf@localhost
---
doc/org-manual.org | 8 ++++++++
etc/ORG-NEWS | 8 ++++++++
lisp/ob-core.el | 43 ++++++++++++++++++++++---------------------
3 files changed, 38 insertions(+), 21 deletions(-)
diff --git a/doc/org-manual.org b/doc/org-manual.org
index 760c1ee865..67b8b4deef 100644
--- a/doc/org-manual.org
+++ b/doc/org-manual.org
@@ -18487,6 +18487,14 @@ options; they are mutually exclusive.
can still be used when referenced from another code block.
Usage example: =:results none=.
+- =discard= ::
+
+ Ignore the results completely. This option is similar to =none=,
+ but no processing is performed on the return value. Calling the
+ code block programatically (see [[*How to evaluate source code]]) or by
+ reference (see [[*Passing arguments]] and [[*Noweb Reference Syntax]]) will
+ always yield nil.
+
- =append= ::
Append results to the Org buffer. Latest results are at the bottom.
diff --git a/etc/ORG-NEWS b/etc/ORG-NEWS
index 568bd15ff2..c18e7392a1 100644
--- a/etc/ORG-NEWS
+++ b/etc/ORG-NEWS
@@ -382,6 +382,14 @@ value of ~org-babel-clojure-backend~. For example:
(range 2)
#+end_src
+*** New =:results discard= header argument
+
+Unlike =:results none=, the return value of code blocks called with
+=:results discard= header argument is always ~nil~. Org does not
+attempt to analyze the results and simply returns nil. This can be
+useful when the code block is used for side effects only but generates
+large outputs that may be slow to analyze for Org.
+
** New options
*** A new option for custom setting ~org-refile-use-outline-path~ to show
document title in refile targets
diff --git a/lisp/ob-core.el b/lisp/ob-core.el
index 3a07c10d50..5f679a5e96 100644
--- a/lisp/ob-core.el
+++ b/lisp/ob-core.el
@@ -425,7 +425,7 @@ then run `org-babel-switch-to-session'."
(prologue . :any)
(results . ((file list vector table scalar verbatim)
(raw html latex org code pp drawer link graphics)
- (replace silent none append prepend)
+ (replace silent none discard append prepend)
(output value)))
(rownames . ((no yes)))
(sep . :any)
@@ -1345,7 +1345,7 @@ CONTEXT specifies the context of evaluation. It can be
`:eval',
(lambda (a b) (string< (car a) (car b)))))
(let* ((rm (lambda (lst)
(dolist (p '("replace" "silent" "none"
- "append" "prepend"))
+ "discard" "append" "prepend"))
(setq lst (remove p lst)))
lst))
(norm (lambda (arg)
@@ -1353,8 +1353,8 @@ CONTEXT specifies the context of evaluation. It can be
`:eval',
(copy-sequence (cdr arg))
(cdr arg))))
(when (and v (not (and (sequencep v)
- (not (consp v))
- (= (length v) 0))))
+ (not (consp v))
+ (= (length v) 0))))
(cond
((and (listp v) ; lists are sorted
(member (car arg) '(:result-params)))
@@ -1382,10 +1382,10 @@ CONTEXT specifies the context of evaluation. It can be
`:eval',
(mapconcat
#'identity
(delq nil (mapcar (lambda (arg)
- (let ((normalized (funcall norm
arg)))
- (when normalized
- (format "%S" normalized))))
- (nth 2 info))) ":")
+ (let ((normalized (funcall norm
arg)))
+ (when normalized
+ (format "%S" normalized))))
+ (nth 2 info))) ":")
expanded))
(hash (sha1 it)))
(when (called-interactively-p 'interactive) (message hash))
@@ -3289,19 +3289,20 @@ Emacs shutdown.")
(declare (indent 1) (debug t))
(org-with-gensyms (params)
`(let ((,params ,result-params))
- (if (or (member "scalar" ,params)
- (member "verbatim" ,params)
- (member "html" ,params)
- (member "code" ,params)
- (member "pp" ,params)
- (member "file" ,params)
- (and (or (member "output" ,params)
- (member "raw" ,params)
- (member "org" ,params)
- (member "drawer" ,params))
- (not (member "table" ,params))))
- ,scalar-form
- ,@table-forms))))
+ (unless (member "discard" ,params)
+ (if (or (member "scalar" ,params)
+ (member "verbatim" ,params)
+ (member "html" ,params)
+ (member "code" ,params)
+ (member "pp" ,params)
+ (member "file" ,params)
+ (and (or (member "output" ,params)
+ (member "raw" ,params)
+ (member "org" ,params)
+ (member "drawer" ,params))
+ (not (member "table" ,params))))
+ ,scalar-form
+ ,@table-forms)))))
(defmacro org-babel-temp-directory ()
"Return temporary directory suitable for `default-directory'."
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