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

[Carsten Dominik]

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?

Hmm, I am unable to reproduce this problem.  What happens while you  
toggle the variable using `C-c C-x \' ?

- 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
> > >
> > >
> > > _______________________________________________
> > > Emacs-orgmode mailing list
> > > Please use `Reply All' to send replies to the list.
> > > address@hidden
> > > http://lists.gnu.org/mailman/listinfo/emacs-orgmode
> >
> > - Carsten

- Carsten