Re: [Orgmode] Pretty org-entities in org-mode buffers

[Eric Schulte]

So looking into this slightly deeper,

I do have org-pretty-entities set to t in my config.

Toggling entities display with C-c C-x \ has no effect.

The value of org-highlight-latex-fragments-and-specials is nil.

Entities are only displayed when I search for the "\\" character, no
other searches result in displayed entities.

Interestingly, when starting with a fresh "emacs -Q" and only loading

--8<---------------cut here---------------start------------->8---
(load-file "~/src/org/lisp/org-install.el")
(setq org-pretty-entities t)
--8<---------------cut here---------------end--------------->8---

I have the same problem, so maybe my version of Emacs is to blame, I'm
using the latest from the emacs git/bzr repo

--8<---------------cut here---------------start------------->8---
~/src/emacs/src/emacs --version
GNU Emacs 24.0.50.1
Copyright (C) 2010 Free Software Foundation, Inc.
GNU Emacs comes with ABSOLUTELY NO WARRANTY.
You may redistribute copies of Emacs
under the terms of the GNU General Public License.
For more information about these matters, see the file named COPYING.
--8<---------------cut here---------------end--------------->8---

When I get some more time, I'll look into this further.

Thanks -- Eric

Carsten Dominik <address@hidden> writes:

> On May 16, 2010, at 11:09 PM, Eric Schulte wrote:
>
>> Hi Carsten,
>>
>> Thanks for folding in this feature.
>>
>> I'm having some weird issues using the new entities display.  The
>> entities are not fontified in my org-mode buffers despite having set
>> the
>> org-pretty-entities variable to t.  However if I search
>> `isearch-forward-regexp' for the "\\" character in the buffer then all
>> of the entities are displayed (e.g. \sum is replaced with ∑).
>>
>> Any idea why the entity display is only working during a search?
>
> One idea:  Do you have turned on org-highlight-latex-fragments-and-
> specials?
>
> - Carsten
>
>
>>
>> Thanks -- Eric
>>
>> Carsten Dominik <address@hidden> writes:
>>
>>> Hi everyone,
>>>
>>> a modified version of Eric's code is now included into Org, I just
>>> pushed it
>>> to the git repo.
>>>
>>> You can use the command `C-c C-x \' to toggle this feature.
>>>
>>> The variable `org-pretty-entities' determines if this mode is on by
>>> default.
>>>
>>> Finally, you can use
>>>
>>> #+STARTUP: entitiespretty
>>> #+STARTUP: entitiesplain
>>>
>>> to change things on a per-file base.
>>>
>>> Thanks to Eric for this great idea.
>>>
>>> - Carsten
>>>
>>> On May 5, 2010, at 6:19 PM, Eric Schulte wrote:
>>>
>>>> Hi,
>>>>
>>>> Recently I've been making use of org-entites for exporting my greek/
>>>> math
>>>> heavy class notes to HTML.  I'm really loving the results.
>>>>
>>>> This morning I've started playing around with the below function
>>>> `org-pretty-entities', which is adapted from Phil Hagelberg's
>>>> `pretty-lambdas'[1].  Calling this function in an org-mode buffer
>>>> will
>>>> have the effect of fontifying all org-entities text strings as the
>>>> character which they represent, so \Delta is replaced with Δ,
>>>> \lambda
>>>> with λ, \in with ∈, and so forth.
>>>>
>>>> I've just started playing with this, and I make no guarantees as to
>>>> it's
>>>> safety or utility, but I was very pleasantly surprised by the
>>>> simplicity
>>>> of the function, and how nice it's been to see my special characters
>>>> appear in org-mode buffers as I type.
>>>>
>>>> #+begin_src emacs-lisp :results silent
>>>> (defun org-pretty-entities ()
>>>>   (interactive)
>>>>   (font-lock-add-keywords
>>>>    nil (mapcar
>>>>         (lambda (el)
>>>>           (list
>>>>            (concat "(?\\(" (regexp-quote "\\") (nth 0 el) "[\s]" "\
>>>> \)")
>>>>            `(0 (progn (compose-region (match-beginning 1) (-
>>>> (match-
>>>> end 1) 1)
>>>>                                       ,(nth 6 el)) nil))))
>>>>         org-entities)))
>>>>
>>>> (org-pretty-entities)
>>>> #+end_src
>>>>
>>>> To try this out, just evaluate the above code block inside of an
>>>> org-mode buffer, then starting typing out org-entities.
>>>>
>>>> Hope others find this useful.
>>>>
>>>> Best -- Eric
>>>>
>>>> Footnotes:
>>>> [1]  
>>>> http://github.com/technomancy/emacs-starter-kit/blob/master/starter-kit-defuns.el#L135
>>>>
>>>>
>>>> _______________________________________________
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>>>> address@hidden
>>>> http://lists.gnu.org/mailman/listinfo/emacs-orgmode
>>>
>>> - Carsten
>
> - Carsten