Is there a way that I can keep absolute line numbers while I have a
file narrowed?
reddit / emacs

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ReallyRussell · 2022-05-25 19:22

When I narrow a file down to a region containing a single function,
the line numbers restart at one, and I would like to be able to make
references based on the actual line number in the file.

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natarey · 2022-05-25 22:24

There's a StackExchange answer that may help:

https://emacs.stackexchange.com/questions/48581/how-to-display-
absolute-line-numbers-of-a-full-widened-buffer-when-narrowing-to

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jumpUpHigh · 2022-05-26 03:38

Wow, the Emacs developer community thought of this early enough to
introduce it directly in the underlying C code.

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b3n · 2022-05-26 08:44

(setq-default display-line-numbers-widen t)

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b3n · 2022-05-26 08:47

I'm not sure what you mean by "early enough"; the C code is not fixed
in time. This was added to `src/xdisp.c` in 2017.

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jumpUpHigh · 2022-05-26 15:11

It was not sarcastic. Someone designed the display-line-numbers with
the narrow/widen in mind, which is awesome.

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ReallyRussell · 2022-05-27 00:58

>(setq-default display-line-numbers-widen t)


Thank you.
This is exactly what I need.
It modifies the number from \`display-line-numbers\`
I normally use \`global-linum-mode\` which puts the numbers in the
gutter/fringe.
Is there something similar for that?