From: Lawrence Bottorff <borgauf@gmail.com>
To: "Berry, Charles" <ccberry@ucsd.edu>
Cc: emacs-orgmode Mailinglist <emacs-orgmode@gnu.org>
Subject: Re: Library of Babel confusion
Date: Tue, 10 Apr 2018 14:55:49 -0400 [thread overview]
Message-ID: <CAFAhFSWrZM-qsKsLfTX5nfep+Whe3geqZPxFXSstGqZ25Nyo-w@mail.gmail.com> (raw)
In-Reply-To: <D06008F2-0BF1-4EDD-8BF7-D91CDA4D99ED@ucsd.edu>
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Thanks for the help. However, one mystery still remains: Why is this
'(org-babel-lob-files (quote ("~/org/worg/library-of-babel.org")))
in my init.el's custom-set-variables not getting handled? I always have to
do an org-babel-lob-ingest to actually get library-of-babel.org loaded.
On Fri, Apr 6, 2018 at 10:38 PM, Berry, Charles <ccberry@ucsd.edu> wrote:
>
>
> > On Apr 6, 2018, at 4:59 PM, Thomas S. Dye <tsd@tsdye.com> wrote:
> >
>
> [Tom's response covering the main issues deleted]
>
> > hth,
> > Tom
> >
> > Lawrence Bottorff writes:
> >
> >> I guess I need more information. For example, what is C-c C-v v doing
> >> exactly? Then C-x C-e? And M-x (symbol-function 'myelsquare) doesn't
> work.
>
>
> `C-h k' is really your friend here. If you do not know it, try typing it
> twice `C-h k C-h k'.
>
> As for the specific keystrokes mentioned above:
>
> ,----[ C-h k C-c C-v v ]
> | C-c C-v v runs the command org-babel-expand-src-block (found in
> | org-mode-map), which is an interactive autoloaded compiled Lisp
> | function in ‘ob-core.el’.
> |
> | It is bound to C-c C-v v, C-c C-v C-v.
> |
> | (org-babel-expand-src-block &optional ARG INFO PARAMS)
> |
> | Expand the current source code block.
> | Expand according to the source code block’s header
> | arguments and pop open the results in a preview buffer.
> |
> | [back]
> `----
>
> In your case, it shows that the `mtelsquare' src block expands to:
>
>
> ,----
> | (let ((x (quote 0)))
> | (defun myelsquare (x)
> | (* x x))
> | )
> `----
>
>
> ,----[ C-h k C-x C-e ]
> | C-x C-e runs the command eval-last-sexp (found in global-map), which
> | is an interactive compiled Lisp function in ‘elisp-mode.el’.
> |
> | It is bound to C-x C-e.
> |
> | (eval-last-sexp EVAL-LAST-SEXP-ARG-INTERNAL)
> |
> | Evaluate sexp before point; print value in the echo area.
> | Interactively, with prefix argument, print output into current buffer.
> |
> | Normally, this function truncates long output according to the value
> | of the variables ‘eval-expression-print-length’ and
> | ‘eval-expression-print-level’. With a prefix argument of zero,
> | however, there is no such truncation. Such a prefix argument
> | also causes integers to be printed in several additional formats
> | (octal, hexadecimal, and character).
> |
> | If ‘eval-expression-debug-on-error’ is non-nil, which is the default,
> | this command arranges for all errors to enter the debugger.
> |
> | [back]
> `----
>
> So with point at the end of the preview buffer for myelsquare (which has
> one `let' expression it it) it has the same effect as running
> `eval-buffer'. viz, the elisp function `myelsquare' is created.
>
> If you have gotten this far, there is an lisp function called `myelsquare'
> and the `symbol-function' expression will return its value when properly
> `eval'ed. I misspoke before. I should have said
>
> M-: (symbol-function 'myelsquare) RET
>
> And that value is `(lambda (x) (* x x))'. Which simply shows you have
> defun'ed a function and what it is.
>
> Once you have an elisp function, the natural way to call it is
> src_emacs-lisp{(myelsquare 1.5)}.
>
> One thing you can do with LOB blocks is use them in header args of src
> blocks just as you would use calls to ordinary src blocks.
>
> HTH,
>
> Chuck
>
>
>
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next prev parent reply other threads:[~2018-04-10 18:55 UTC|newest]
Thread overview: 12+ messages / expand[flat|nested] mbox.gz Atom feed top
2018-04-03 20:31 Library of Babel confusion Lawrence Bottorff
2018-04-03 20:44 ` Nicolas Goaziou
2018-04-04 22:52 ` Lawrence Bottorff
2018-04-03 21:39 ` Berry, Charles
2018-04-06 22:15 ` Lawrence Bottorff
2018-04-06 23:59 ` Thomas S. Dye
2018-04-07 2:38 ` Berry, Charles
2018-04-10 18:55 ` Lawrence Bottorff [this message]
2018-04-10 19:26 ` Thomas S. Dye
2018-04-11 13:29 ` Lawrence Bottorff
2018-04-11 16:57 ` Thomas S. Dye
2018-04-11 18:20 ` Berry, Charles
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