this post was submitted on 12 Oct 2023
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How do you quickly navigate inside a source file using emacs ? (alien.top)
submitted 1 year ago by _Gink0_@alien.top to c/emacs
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I am a C++ dev. I am now able to follow up symbols or files using LSP,/projectile/ivy/transient aso... but inside one file, I have difficulties going quickly up function by function, or by if/for statement. Do you know a convenient way to do this ? I am interested in any navigation tips as well ! Thanks for your help !

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[–] bananalimecherry@alien.top 2 points 1 year ago (1 children)

You can go to the next/previous function with C-M-a and C-M-e. With evil mode it's ] m and [ m. You can use imenu. You can make keybindings to scroll forwards/backwards several lines at a time.

[–] _Gink0_@alien.top 1 points 1 year ago (2 children)

That one is great !!! What if I want to navigate through statements of the same type ? Like if instructions?

[–] 7890yuiop@alien.top 1 points 1 year ago

I'm not sure what that means, but forward-sexp, backward-sexp, and backward-up-list are good for navigating across and within balanced expressions.

[–] bananalimecherry@alien.top 1 points 1 year ago (2 children)

I don't know any good way to do that.

[–] uita23@alien.top 1 points 1 year ago

Feels like this would be something cool to add to a treesitter mode.

Meanwhile I just C-s if

[–] 00-11@alien.top 1 points 1 year ago

See my reply above. You can use either thing-cmd.el or find-where.el for that. You just need to define "statements of a given type" as a THING or define a predicate that is true for them. Or if their text has some property (even just face from font-locking) then isearch-prop.el will help.