From mboxrd@z Thu Jan 1 00:00:00 1970 From: "Eric Schulte" Subject: Re: Pretty org-entities in org-mode buffers Date: Fri, 07 May 2010 09:27:44 -0600 Message-ID: <871vdng2a7.fsf@gmail.com> References: <87zl0e2ue7.fsf@gmail.com> Mime-Version: 1.0 Content-Type: text/plain; charset=utf-8 Content-Transfer-Encoding: quoted-printable Return-path: Received: from mailman by lists.gnu.org with tmda-scanned (Exim 4.43) id 1OAPT0-00084t-32 for emacs-orgmode@gnu.org; Fri, 07 May 2010 11:27:54 -0400 Received: from [140.186.70.92] (port=37608 helo=eggs.gnu.org) by lists.gnu.org with esmtp (Exim 4.43) id 1OAPSy-00083Q-5m for emacs-orgmode@gnu.org; Fri, 07 May 2010 11:27:53 -0400 Received: from Debian-exim by eggs.gnu.org with spam-scanned (Exim 4.69) (envelope-from ) id 1OAPSv-00014U-Qa for emacs-orgmode@gnu.org; Fri, 07 May 2010 11:27:52 -0400 Received: from mail-pv0-f169.google.com ([74.125.83.169]:43071) by eggs.gnu.org with esmtp (Exim 4.69) (envelope-from ) id 1OAPSv-00013w-IX for emacs-orgmode@gnu.org; Fri, 07 May 2010 11:27:49 -0400 Received: by pvh1 with SMTP id 1so45342pvh.0 for ; Fri, 07 May 2010 08:27:48 -0700 (PDT) In-Reply-To: (Carsten Dominik's message of "Fri, 7 May 2010 09:11:30 +0200") List-Id: "General discussions about Org-mode." List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Sender: emacs-orgmode-bounces+geo-emacs-orgmode=m.gmane.org@gnu.org Errors-To: emacs-orgmode-bounces+geo-emacs-orgmode=m.gmane.org@gnu.org To: Carsten Dominik Cc: Org Mode Carsten Dominik writes: > Dear Eric, > > this is fantastic. Great, Thanks > This is kind of like X-symbol, only that I can just write my trusted > LaTeX macros and get all those characters. Makes me think that I need > to add a few more symbols that I commonly use in math expressions. > Yea, I have the following org-entites customization in my setup which covers some of the symbol names I commonly expect. It's been growing the more I use org-entities. --8<---------------cut here---------------start------------->8--- (add-to-list 'org-entities '("supseteq" "\\supseteq" t "⊇" "[superset of or equal to= ]" "[superset of or equal to]" "=E2=8A=87")) (add-to-list 'org-entities '("subseteq" "\\subseteq" t "⊆" "[subset of or equal to]" "[subset of or equal to]" "=E2=8A=86")) (add-to-list 'org-entities '("subseteq" "\\subseteq" t "⊆" "[subset of or equal to]" "[subset of or equal to]" "=E2=8A=86")) (add-to-list 'org-entities '("leq" "\\leq" t "≤" "<=3D" "<=3D" "=E2=89=A4")) (add-to-list 'org-entities '("geq" "\\geq" t "≥" ">=3D" ">=3D" "=E2=89=A5")) --8<---------------cut here---------------end--------------->8--- > > I am wondering if we could be a bit more generous with the regular > expression. For example, I would love for $\alpha=3D\beta$ to show the > symbols as well. agreed, maybe this would be better (using [:alnum:])? The only reason for the restriction is to keep symbols from appearing mid way through typing out some other symbol or word. --8<---------------cut here---------------start------------->8--- (defun org-pretty-entities () (font-lock-add-keywords nil (mapcar (lambda (el) (list (concat "(?\\(" (regexp-quote "\\") (nth 0 el) "[^[:alnum:]]" "\= \)") `(0 (progn (compose-region (match-beginning 1) (- (match-end 1) = 1) ,(nth 6 el)) nil)))) org-entities))) --8<---------------cut here---------------end--------------->8--- >=20 > Also there should be a switch for turning this on and off. > > I would like to integrate this code into org-entities.el. > Those both sound great. It would take a little bit of effort to look into how to remove font-lock keywords. If you have the time and inclination please go ahead with this, otherwise I should be able to take a shot at it myself in the next week or two -- I'm in the middle of my final exams right now. > > Thanks for all your contributions, which continue to make Org-mode so > much richer. > It's my Pleasure -- Eric > > - 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 =CE=94, \lamb= da >> with =CE=BB, \in with =E2=88=88, 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. >> Emacs-orgmode@gnu.org >> http://lists.gnu.org/mailman/listinfo/emacs-orgmode > > - Carsten