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List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Errors-To: emacs-orgmode-bounces+larch=yhetil.org@gnu.org Sender: emacs-orgmode-bounces+larch=yhetil.org@gnu.org X-Migadu-Country: US X-Migadu-Flow: FLOW_IN X-Spam-Score: 0.14 X-Migadu-Queue-Id: B4AAF6C7B9 X-Migadu-Scanner: mx10.migadu.com X-Migadu-Spam-Score: 0.14 X-TUID: RH/GpMUGtluO On 05/05/2024 18:59, Ihor Radchenko wrote: > Ihor Radchenko writes: > >>> If a user access same files from Linux and macOS then it >>> may be really annoying to get different order of entries in agenda. For >>> most of Linux users it is better to use more smart >>> `string-collate-lessp'. Some care is required to sort entries obtained >>> from multiple buffers in predictable environment (locale, case >>> conversion table). >> >> I agree. We can introduce a new customization - >> `org-string-sort-function' that will be used across Org mode to sort >> user text. > > See the attached tentative patch. > I added a customization, made everything in Org obey it, and provided > some default options for MacOS users. Contrary to Eli, I still think that there are enough locales where completely disregarding IGNORE-CASE is worse than fallback to `downcase' when IGNORE-CASE is t. Perhaps some kind of normalization (NFD?) may improve results further. I consider the following as a kind of graceful degradation (defun org-sort-function-fallback-downcase (a b &optional LOCALE IGNORE-CASE) (if ignore-case (string-collate-lessp (downcase a) (downcase b) locale ignore-case) (string-collate-lessp a b locale ignore-case))) (defcustom org-sort-function (if (string-collate-lessp "a" "B" "C" t) #'string-collate-lessp #'org-sort-function-fallback-downcase)) I would consider a setter function for `org-sort-function' to avoid branches based of `func-arity' in `org-string<'. I see a little point in purely downcase comparator `org-sort-function-downcase'.