From: Ihor Radchenko <yantar92@gmail.com>
To: Mark Clements <mark.clements@ki.se>
Cc: "emacs-orgmode@gnu.org" <emacs-orgmode@gnu.org>
Subject: Re: Elisp macro for working with org tables
Date: Wed, 03 Aug 2022 18:13:43 +0800 [thread overview]
Message-ID: <87r11xiqi0.fsf@localhost> (raw)
In-Reply-To: <GV3P280MB00019F1DDCF8BD0764CECDA3F09C9@GV3P280MB0001.SWEP280.PROD.OUTLOOK.COM>
Mark Clements <mark.clements@ki.se> writes:
> In response to a question on Stackoverflow (https://stackoverflow.com/questions/50921305/org-table-and-named-columns-for-babel-processing), I have written an elisp macro to work with org tables:
>
> #+NAME: test-table
> | a | b |
> |---+---|
> | 1 | 2 |
> | 3 | 4 |
> ....
> Comments are welcome -- and I hope that this is useful.
Usually, we use table formulas in such situations.
Table formulas support named columns, lines, cells and constants.
> #+NAME: test-table-script
> #+BEGIN_SRC emacs-lisp :var table=test-table :colnames no
> (require 'cl)
> (defmacro with-table (table expression)
> "Given an org table with colnames, evaluate an expression using the colnames.
> Note: use ':colnames no' in the header -- this imports the names but does not export them."
> `(let* ((table-with-colnames (org-babel-get-colnames ,table))
> (names (loop for name in (cdr table-with-colnames)
> collect (if (stringp name) (intern name) name))))
> (funcall
> `(lambda (data)
> (mapcar (lambda (row)
> (cl-destructuring-bind ,names row ,',expression))
> data))
Note that NAMES may contain forbidden chars for Elisp symbols.
Best,
Ihor
prev parent reply other threads:[~2022-08-03 10:14 UTC|newest]
Thread overview: 2+ messages / expand[flat|nested] mbox.gz Atom feed top
2022-08-03 8:33 Elisp macro for working with org tables Mark Clements
2022-08-03 10:13 ` Ihor Radchenko [this message]
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