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Before introducing the octave syntax file in ~/.config/nvim/syntax/octave.vim from here auto-indent worked as expected.
After introducing the file, the syntax coloring works, but the auto-indentation does not.
I already read this remarks and it looks like it should be working.
Does anyone knows what I can do to get auto-indent to work?
I believe your problem is not related to the Octave syntax file. It only introduces syntax coloring properties.
I believe the problem comes with the lines that associate the octave file type to the buffers corresponding to the *.m and *.oct files:
augroup octavedetect
au! BufRead,BufNewFile *.m,*.oct set filetype=octave
augroup END
By default *.m files are associated to the matlab file type and come with the matlab auto-indentation.
With the new lines the octave indentation is reset to your Neovim default indentation.
You can restore it to the matlab indentation with the following lines into your init.vim:
augroup octavetype
au! BufRead,BufNewFile *.m,*.oct setlocal indentexpr=GetMatlabIndent()
augroup END
Or by adding an octave.vim file into ~/.config/nvim/ftplugin/ with the following content:
setlocal indentexpr=GetMatlabIndent()
But maybe should we search for a more Octave specific auto-indentation.
Maybe could you consider installing the following plugin octave that bring both colorization and Octave specific auto-indentation?
rik: At least for Vim, syntax and indentation are two different things handled by two different scripts. I wrote the syntax highlighter for Vim (which should reside in ~/.vim/syntax) and I also wrote an indenter for Vim which which should reside in ~/.vim/indent. The indent file is octave.vim and is attached here. You can probably get it to run on NeoVim easily.
Syntax file from: octave.vim : Syntax highlighting file for GNU Octave language
Anyone with this issue please see the following thread: https://octave.discourse.group/t/neovim-octave-syntax-highlighting-and-indentation/4228
init.vimto get Octave coloring, restart Neovim and give us the result of the following commands:set ft?and:set autoindent?:set cindent?:set indentexpr??in my command. The consequence is that you set the option (and then it returns itself). Could you restart Neovim and repeat the commands with the trailing?included? I'm already 99% convince that you had matlab auto-indentation that is indeed relatively good for Octave although probably not 100% perfect.