[patch] Remove dependency on latexsym (was: [patch][org-entities] More symbols)

[Rasmus <rasmus@gmx.us>]

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Hi,

> Nicolas Goaziou <n.goaziou@gmail.com> writes:
>
> As a rule of thumb, I think we should avoid requiring new packages for
> org-entities.

It's easy to remove the decency of latexsym as it only defines a very
limited number of symbols (see texdoc latexsym).  Using amssymb
symbols will even look better IMO, but check this document:

#+BEGIN_SRC Org
#+latex:\Huge
  - [ ] x
  - [-] x
  - [X] x
#+begin_latex
  \begin{itemize}
  \item $\square$ x
  \item $\boxminus$ x
  \item $\boxtimes$ x
  \end{itemize}
#+end_latex
#+END_SRC

Obviously, it requires the removal of Diamond (my entity patch) and
Box (this patch)

–Rasmus


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From 613f28f3bc5d2a6e35093b0a6f33d9b6ec393458 Mon Sep 17 00:00:00 2001
From: rasmus <rasmus@gmx.us>
Date: Sat, 31 Aug 2013 18:15:12 +0200
Subject: [PATCH 2/2] Remove dependency on latexsym.

* ox-latex.el (org-latex-item): Use square as unchecked symbol.
* org.el (org-latex-default-packages-alist): Remove latexsym.

Use amssymb symbols to reduce required packages.
---
 lisp/org.el      | 5 ++---
 lisp/ox-latex.el | 2 +-
 2 files changed, 3 insertions(+), 4 deletions(-)

diff --git a/lisp/org.el b/lisp/org.el
index 572b797..90fdfee 100644
--- a/lisp/org.el
+++ b/lisp/org.el
@@ -3832,7 +3832,6 @@ header, or they will be appended."
     (""     "textcomp"  t)
     (""     "marvosym"  t)
     (""     "wasysym"   t)
-    (""     "latexsym"  t)
     (""     "amssymb"   t)
     (""     "amstext"   nil)
     (""     "hyperref"  nil)
@@ -3847,7 +3846,7 @@ Org mode to function properly:
 
 - inputenc, fontenc:  for basic font and character selection
 - amstext: for subscript and superscript
-- textcomp, marvosymb, wasysym, latexsym, amssym: for various
+- textcomp, marvosymb, wasysym, amssymb: for various
   symbols used for interpreting the entities in `org-entities'.
   You can skip some of these packages if you don't use any of the
   symbols in it.
@@ -7653,7 +7652,7 @@ This is important for non-interactive uses of the command."
 	   (t
 	    (goto-char (point-at-eol))
 	    (insert "\n")))
-	  
+
 	  ;; Insert the new heading
 	  (insert stars)
 	  (just-one-space)
diff --git a/lisp/ox-latex.el b/lisp/ox-latex.el
index 1fe918a..e1173ef 100644
--- a/lisp/ox-latex.el
+++ b/lisp/ox-latex.el
@@ -1561,7 +1561,7 @@ contextual information."
 			 (1- count)))))
 	 (checkbox (case (org-element-property :checkbox item)
 		     (on "$\\boxtimes$ ")
-		     (off "$\\Box$ ")
+		     (off "$\\square$ ")
 		     (trans "$\\boxminus$ ")))
 	 (tag (let ((tag (org-element-property :tag item)))
 		;; Check-boxes must belong to the tag.
-- 
1.8.4


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