I use org-expiry to implement that functionality, which is in the contrib directory of org. The base configuration I use is: ;; Allow automatically handing of created/expired meta data. (require ‘org-expiry) ;; Configure it a bit to my liking (setq org-expiry-created-property-name “CREATED” ; Name of property when an item is created org-expiry-inactive-timestamps t ; Don’t … Read more
Not sure why this was overlooked maybe it was not in emacs in 2010 but in a current emacs at least there is function file-expand-wildcards (file-expand-wildcards “~/Desktop/*”) which does exactly what you want to do..
I think you are looking for mapconcat: mapconcat applies function to each element of sequence: the results, which must be strings, are concatenated. Between each pair of result strings, mapconcat inserts the string separator. Usually separator contains a space or comma or other suitable punctuation.
Did you know the command C-h m (describe-mode), which usually shows a description of the current major and minor modes, usually with their keymaps? (substitute-command-keys “\\{foo-map}”) is what describe-mode uses internally to generate the user-friendly description of the keymap foo-map. If you’d like to have something closer to the keymap structure, the API is documented … Read more
set-variable is an interactive command, meaning that you can type M-x set-variable RET to be interactively prompted for a variable name and value. setq is not an interactive command, meaning it’s only suitable for writing in Emacs Lisp code. Personally, I never use set-variable in my Lisp code, only interactively, when I want to give … Read more
Function global-set-key is an interactive function based on define-key which you can invoke by typing M-x global-set-key. Function define-key is rather used in Lisp programs. You can look up global-set-key‘s source code with C-h f global-set-key to see that it only wraps define-key. To answer your question, there are no significant differences between them.
Check out run-with-timer. (run-with-timer 0 (* 30 60) ‘recentf-save-list)
Well, I’m using 24.1. Some C++98 keywords are missing, and all new C++11 keywords. It does not even fontify number constants. It seems as if c++-mode hasn’t been updated for a decade. I’m using the following code for a long time now, and recently added C++11 keywords. Try putting it in your .emacs; it should … Read more
(apply ‘+ ‘(1 2 3))
Since in elisp, a String is an int array, you can use (= (length user-str) 0) You can also use (string=) which is usually easier to read (string= “” user-str) Equal works as well, but a bit slower: (equal “” user-str)