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bug#42017: 26.3; format-mode-line and %p


From: Mattias Engdegård
Subject: bug#42017: 26.3; format-mode-line and %p
Date: Tue, 23 Jun 2020 15:12:49 +0200

tag 42017 notabug
close 42017
done

> (setq mode-line-format (:eval (format-mode-line "(%p)")))

The result of the form after :eval is the mode-line format string to use, not 
the final string itself.
What you observe is the effect of using "(25%)" (for example) as a mode-line 
format string: since "%)" is not a valid format specification, it produces no 
characters.

Thanks for reporting it just the same, and please do not let this dissuade you 
from reporting things you think aren't right in the future!






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