From b9365efa8dad7f3fc50b5821eaa4dbfdf9381f11 Mon Sep 17 00:00:00 2001
From: "martin f. krafft" <madduck@madduck.net>
Date: Wed, 9 Apr 2025 10:44:50 +0200
Subject: [PATCH 1/1] List mode handling how I like it

---
 .config/nvim/plugin/listmode.lua | 28 ++++++++++++++++++++++++++++
 .gitignore.d/neovim              |  1 +
 2 files changed, 29 insertions(+)
 create mode 100644 .config/nvim/plugin/listmode.lua

diff --git a/.config/nvim/plugin/listmode.lua b/.config/nvim/plugin/listmode.lua
new file mode 100644
index 0000000..a0a4c05
--- /dev/null
+++ b/.config/nvim/plugin/listmode.lua
@@ -0,0 +1,28 @@
+vim.opt.list = true
+vim.opt.listchars = { tab = '⇝·', trail = '·', nbsp = '␣' }
+
+-- disable list mode when inserting stuff, otherwise keep it enabled, it's
+-- useful (see also setting lcs)
+listinsert = vim.api.nvim_create_augroup('listinsert', { clear = true })
+vim.api.nvim_create_autocmd('InsertEnter', {
+	desc = 'Disable list mode when starting to insert',
+	group = listinsert,
+	callback = function() vim.opt.list = false end
+})
+vim.api.nvim_create_autocmd('InsertLeave', {
+	desc = 'Enable list mode when leaving insert mode',
+	group = listinsert,
+	callback = function() vim.opt.list = true end
+})
+-- flag trailing spaces as error only when not inserting
+tsperrorinsert = vim.api.nvim_create_augroup('tsperrorinsert', { clear = true })
+vim.api.nvim_create_autocmd('InsertEnter', {
+	desc = 'Disable highlighting trailing spaces in insert mode',
+	group = tsperrorinsert,
+	callback = function() vim.cmd([[match none /\s\+$/]]) end
+})
+vim.api.nvim_create_autocmd('InsertLeave', {
+	desc = 'Enable highlighting trailing spaces outside of insert mode',
+	group = tsperrorinsert,
+	callback = function() vim.cmd([[match Error /\s\+$/]]) end
+})
diff --git a/.gitignore.d/neovim b/.gitignore.d/neovim
index 67f09bb..b07238f 100644
--- a/.gitignore.d/neovim
+++ b/.gitignore.d/neovim
@@ -1,5 +1,6 @@
 *
 !/.config/nvim/autoload/plug.vim
 !/.config/nvim/init.lua
+!/.config/nvim/plugin/listmode.lua
 !/.config/nvim/plugin/vim-artesanal.lua
 !/.gitignore.d/neovim
-- 
2.39.5