CODEWITHSUNDEEP
emacslatexorg-mode
amiragha
amiragha

Reputation: 33

How to add extra math to org-cdlatex-mode when starting emacs?

The org-cdlatex-mode helps to insert math latex symbols/tempelates in org-mode.

I would like to add some extra symbols/accents to it. I realized that the math accents are stored in the variable cdlatex-math-modify-alist-comb and if I add to that list in the scrach buffer, I will get the extra short key for the new symbol, for example running:

(add-to-list 'cdlatex-math-modify-alist-comb '(?o "\\operatorname" nil t t nil))

works as expected. However if I add the same line in the init file, the new key won't be added to the list and emacs complains with warning that the list variable is free!

I probably need to add to the list after it has been loaded, however I couldn't find any source of how to do it.

Upvotes: 1

Views: 900

Answers (3)

Laura Viglioni
Laura Viglioni

Reputation: 21

The workaround I did is to create a function that adds them every time I call my math minor mode

(define-minor-mode org-math-mode
  "Some config to write math on `org-mode'."
  :lighter "org-math-mode"
  (org-fragtog-mode 1)
  (org-cdlatex-mode 1)
  (lauremacs-cdlatex-add-math-symbols))

(defun lauremacs-cdlatex-add-math-symbols ()
  (add-multiple-into-list
   'cdlatex-math-symbol-alist-comb
   '(
     (?.  "\\cdot"   "\\dots")
     (?\; "\\;")
     (?C  ""         "\\mathbb{C}"   "\\arccos")  
     (?N  "\\nabla"  "\\mathbb{N}"   "\\exp")     
     (?Q  "\\Theta"  "\\mathbb{Q}")  
     (?R  "\\Re"     "\\mathbb{R}")  
     (?Z  ""         "\\mathbb{Z}")
     )))

where add to multiple is just a helper function that uses add-to-list

(defun add-multiple-into-list (lst items)
    "Add each item from ITEMS into LST."
    (throw-unless (symbolp lst) "List should be a symbol.")
    (dolist (item items)
        (add-to-list lst item)))

This might lead to a very big 'cdlatex-math-symbol-alist-comb but it didn't bothered me yet, a solution to this is adding to list if element is not there or something like this

Upvotes: 2

Tokubara
Tokubara

Reputation: 470

Just edit cdlatex.el and compile it. For example, I add sum with this piece of code:

("sum"         "Insert \\sum_{i=1}{n}"
 "\\sum_{i=1}{n}?"           cdlatex-position-cursor nil nil t)

and it works.

Upvotes: 0

rvf0068
rvf0068

Reputation: 1389

The variable that needs to be set in your case is cdlatex-math-modify-alist. The documentation of that variable says: Any entries in this variable will be added to the default.

Upvotes: 1

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