Remove support for Neovim

[jalvesaq]

No description provided.

[jalvesaq]

This pull request removes Neovim-specific code and completely disables the plugin if the editor is Neovim. This makes the remaining code easier to maintain.

Neovim users have two options:

• Use version 0.9.21 of Vim-R.
• Migrate to R.nvim.

R.nvim has more features, but Vim-R (version 0.9.21) might still be a valid option for those who are not ready to migrate the Neovim configuration from init.vim to init.lua.

[Copilot]

Pull request overview

Removes Neovim support paths from Vim-R by short-circuiting runtime in Neovim and simplifying job/terminal/float handling to Vim-only APIs.

Changes:

• Add early has("nvim") guards to stop loading filetype plugins/syntax/ftdetect under Neovim.
• Remove Neovim-specific job/terminal/buffer/float implementations and keep Vim’s job_start(), popup_*, and :terminal code paths.
• Update documentation and Windows integration code to remove Neovim-specific notes/branches.

Reviewed changes

Copilot reviewed 30 out of 30 changed files in this pull request and generated 5 comments.

Show a summary per file

File	Description
syntax/rout.vim	Skip loading Rout syntax under Neovim.
syntax/rdoc.vim	Skip loading R doc syntax under Neovim.
syntax/rbrowser.vim	Skip loading object browser syntax under Neovim.
ftplugin/rrst_vimr.vim	Skip rrst ftplugin under Neovim; remove g:has_Rnvim gate.
ftplugin/rnoweb_vimr.vim	Skip rnoweb ftplugin under Neovim; remove g:has_Rnvim gate.
ftplugin/rmd_vimr.vim	Skip rmd ftplugin under Neovim; remove g:has_Rnvim gate.
ftplugin/rhelp_vimr.vim	Skip rhelp ftplugin under Neovim; remove g:has_Rnvim gate.
ftplugin/rdoc.vim	Skip rdoc ftplugin under Neovim; remove g:has_Rnvim gate.
ftplugin/rbrowser.vim	Skip rbrowser ftplugin under Neovim; remove Neovim buffer-update branch.
ftplugin/r_vimr.vim	Skip r ftplugin under Neovim; remove Neovim jobstart branch.
ftplugin/quarto_vimr.vim	Skip quarto ftplugin under Neovim; remove g:has_Rnvim gate.
ftdetect/r.vim	Skip filetype detection under Neovim.
doc/Vim-R.txt	Remove Neovim-specific documentation and update notes accordingly.
README.md	Remove Neovim-related “See also” references.
R/windows.vim	Remove Neovim-specific Windows start branch; use Vim shell invocation.
R/vimcom/src/apps/vimrserver.c	Remove Neovim window-title handling; update messaging to Vim.
R/start_server.vim	Remove Neovim job callback shapes; keep Vim job callbacks only.
R/start_r.vim	Remove Neovim buffer/term/job branches; keep Vim-only code paths.
R/rstudio.vim	Remove Neovim jobstart branch; keep Vim job callbacks.
R/rnw_fun.vim	Remove Neovim-specific commented attempt in SyncTeX backward.
R/pdf_zathura.vim	Remove Neovim Zathura launching; keep Vim job implementation.
R/pdf_okular.vim	Remove Neovim Okular launching; keep Vim job implementation.
R/pdf_evince.vim	Update Evince comment wording from Neovim to Vim.
R/nvimrcom.vim	Remove Neovim-only job/channel glue (file deleted).
R/nvimbuffer.vim	Remove Neovim-buffer R console implementation (file deleted).
R/functions.vim	Skip functions file under Neovim; remove Neovim buffer syntax refresh.
R/extern_term.vim	Remove Neovim env var and jobstart branches; keep Vim StartJob usage.
R/complete.vim	Remove Neovim floating window implementation; use Vim popups only.
R/common_global.vim	Make plugin immediately finish on Neovim; remove Neovim notify/float code and Neovim version checks.
R/common_buffer.vim	Remove g:has_Rnvim early return after sourcing common_global.vim.

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[jalvesaq]

Do you still use Vim and Vim-R? Please try the branch "no_nvim" and comment below if I unduly deleted code required by Vim.

[jranke]

Do you still use Vim and Vim-R? Please try the branch "no_nvim" and comment below if I unduly deleted code required by Vim.

Hi, I support this move for the sake of maintainability of Vim-R (which only receives bugfixes anyways as I understand). I do still use Vim-R, because highlighting of Roxygen comments does not work in R.nvim [1].

[1] r-lib/tree-sitter-r#68