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

[Carsten Dominik]

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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- Carsten