Re: Library of Babel confusion

["Thomas S. Dye" <tsd@tsdye.com>]

Aloha Lawrence,

Lawrence Bottorff writes:

> I'll try that, Thomas, but this was set up by simply doing the 
> on-board
> customize, i.e., it needs to have this corrected. So how do I 
> request this
> correction?

There are instructions here:

https://orgmode.org/org.html#Feedback

You'll need to indicate which customization option you've set and 
what you expected to happen vs. what actually happened.

I don't use customize and am not familiar with it, but when I 
looked through the Babel section this morning I didn't find an 
option to ingest a library of babel.  Perhaps I missed it, or it 
is found somewhere else?

All the best,
Tom

>
> On Tue, Apr 10, 2018 at 3:26 PM, Thomas S. Dye <tsd@tsdye.com> 
> wrote:
>
>> Aloha Lawrence,
>>
>> You probably want (org-babel-lob-ingest &optional FILE)
>>
>> All the best,
>> Tom
>>
>>
>> Lawrence Bottorff writes:
>>
>> 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
>>>>
>>>>
>>>>
>>>>
>>
>> --
>> Thomas S. Dye
>> http://www.tsdye.com
>>


--
Thomas S. Dye
http://www.tsdye.com