Re: Pretty org-entities in org-mode buffers

[Carsten Dominik <carsten.dominik@gmail.com>]

On Jun 3, 2010, at 7:51 PM, Eric Schulte wrote:

> Hi Carsten,
>
> This appears to be an issue in the HEAD (as of two weeks ago) of the
> Emacs git repository.  I was able to get around this issue (and a  
> couple
> of other font-lock related issues) by stepping back to an older  
> version
> of Emacs (tag EMACS_23_2 in the git repository).
>
> I haven't tried to go back to the Emacs development HEAD, but I assume
> that they'll take care of this issue sooner or later, either way it's
> not a problem with any of the code in Org-mode.

OK, thanks.

I actually did pull the latest git mirror, and I did not see any  
problems....

- Carsten


>
> Best -- Eric
>
> Carsten Dominik <carsten.dominik@gmail.com> writes:
>
>> Hi Eric,
>>
>> have you been able to get past this issue?
>>
>> - Carsten
>>
>> On May 17, 2010, at 5:01 PM, Eric Schulte wrote:
>>
>>> 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 <carsten.dominik@gmail.com> 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 <carsten.dominik@gmail.com> 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
>>>>>>>
>>>>>>>
>>>>>>> _______________________________________________
>>>>>>> Emacs-orgmode mailing list
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>>>>>>> Emacs-orgmode@gnu.org
>>>>>>> http://lists.gnu.org/mailman/listinfo/emacs-orgmode
>>>>>>
>>>>>> - Carsten
>>>>
>>>> - Carsten
>>
>> - Carsten

- Carsten