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On Emacs Info Expressions

jman wrote:

Hey, nice article and useful tip!

I've tried using it on a random info page but the prefix C-0 produces a message in the modeline "0 is undefined".

I am using vanilla Emacs 30.2 on Debian and also tested with emacs -Q (to exclude possible weirdnesses in my config). The documentation for the function Info-copy-current-node-name confirms that "With a zero prefix arg, put the name inside a function call to ‘info’."

I am a bit puzzled. What am I doing wrong?

Also, I wanted to comment in a blog to get that '00 vibe. :-)

Cheers!

08 Dec 2025 15:40 UTC | #1 of 1 comment