Recent Changes

2025-06-14

• 13:26 UTC (new) (history) 2025-06-14 Automatically converting timestamps in Emacs . . . . mbork – This is a third post in a short series of posts about code which helps me deal with numerical timestamps in Emacs. Last time I wrote a function which decides if a number is a Unix timestamp or a JavaScript Date and converts it to a human-readable ISO-8601 timestamp. What would be even more useful is to see the ISO representation of the timestamp at point without even doing anything. Emacs already has support for showing stuff related to the thing at point in the modeline – ElDoc. Several years ago I had some thoughts about using the ElDoc machinery to do something for me, but I found it too complicated then. Well, either they modified ElDoc to make it easier to program, or I matured as a programmer, or both. It turned out that it took me about 15 minutes to come up with a working prototype, which is extremely cool!

2025-06-07

• 17:12 UTC (new) (history) 2025-06-07 Promisified setTimeout . . . . mbork – For quite a few years, when I needed my Node.js scripts to wait for some time, I used this promisified version of setTimeout:

2025-06-01

• 05:50 UTC (diff) (history) 2025-05-31 Emacs timestamps and Unix time . . . . mbork – Deleted 2025-05-31_Emacs_timestamps_and_Unix_time

2025-05-31

• 18:40 UTC (new) (history) 2025-05-31 Converting integers to ISO-8601 timestamps . . . . mbork – Two weeks ago I wrote about using defcustom​’s :get and :set keywords, allowing the user to set an option containing a Unix timestamp (that is, a number) using an ISO-8601 timestamp. Today I am going to use such an option.

2025-05-26

• 16:02 UTC (new) (history) 2025-05-26 Adding directories to EMMS playlist from Dired . . . . mbork – Like many of us Emacsers, I do much (if not most) my computering in Emacs. This includes using EMMS as my main media player and Dired as my file manager. One thing I find myself doing pretty often is adding a bunch of subdirectories in my ~/music directory to my EMMS playlist. I usually used emms-add-directory-tree, but it is not really smooth if I want to apply it to many subdirectories. I thought, “there must be a function which adds the current item – or the marked items – to the playlist”.

2025-05-19

• 17:38 UTC (new) (history) 2025-05-19 Customization variables which require some computation after being set . . . . mbork – Today I’d like to learn – and then show – how to define a user option in Emacs so that setting it will trigger evaluating some Elisp code. Here is my use-case. I want the option to be a timestamp. The most convenient way to store it is as Unix time (number of seconds since the epoch), since the code using it will perform comparisons between that timestamp and other times. On the other hand, the most convenient way to set it is as ISO-8601 timestamp, which is inifinitely more human-readable than the Unix time.

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