Mail area detection and &fo handling

[etc/lazyvim.git] / .config / lazyvim / after / ftplugin / mail.lua

diff --git a/.config/lazyvim/after/ftplugin/mail.lua b/.config/lazyvim/after/ftplugin/mail.lua
index afa4c39bd2b0a2cf3e314c365716316261e19e1a..b3d4005a731debe4d57fc1d4cad2000054a8f180 100644 (file)
--- a/.config/lazyvim/after/ftplugin/mail.lua
+++ b/.config/lazyvim/after/ftplugin/mail.lua
@@ -1,9 +1,38 @@
+local i, _ = string.find(vim.bo.filetype, "markdown")
+if not i then
+  vim.opt_local.filetype = "mail.markdown"
+  -- this should trigger a reload of the ftplugin
+  return
+end
+
+-- There are no diagnostics for mail, but we do not want the
+-- Markdown standards imposed on mail header and signature…
+vim.diagnostic.enable(false)
+vim.b.autoformat = false
+
+-- disable Treesitter format expression for Mail
+vim.opt_local.formatexpr = ""
+
 vim.opt_local.formatoptions:remove("o")
 vim.opt_local.formatoptions:remove("r")
 vim.opt_local.formatoptions:remove("l")
-vim.opt_local.formatoptions:append("a")
-vim.opt_local.formatoptions:append("w")
-vim.opt_local.formatoptions:append("n")
+
+vim.keymap.set("n", "<leader>m", "", { buffer = true, desc = "mail functions" })
+vim.keymap.set("n", "<leader>ms", "", { buffer = true, desc = "subject manipulation" })
+
+vim.keymap.set(
+  "n",
+  "<leader>msn",
+  ":1,/^$/s,\\v(Subject:)\\s*((Re|AW):\\s*)*((.|\\_s\\s+)+),\\1  (was: \\4),e<CR>:set nohls<CR>Whi",
+  -- <CR><cmd>set nohls<CR>f li",
+  { buffer = true, desc = "make a new subject" }
+)
+vim.keymap.set(
+  "n",
+  "<leader>msd",
+  '1G/\\v^Subject:(.|\\_s\\s+)+was:/e<CR>:set nohls<CR>"_dab',
+  { buffer = true, desc = "remove old subjects" }
+)
 
 vim.keymap.set("n", "<leader>p", "", { buffer = true, desc = "mailplate profiles" })
 
@@ -56,3 +85,37 @@ vim.api.nvim_create_autocmd({ "BufWrite" }, {
 })
 
 vim.cmd.runtime("greeting_abbrevs.vim")
+
+local function mail_area_detect()
+  local ts = vim.treesitter
+  if not ts then
+    return
+  end
+  local node = vim.treesitter.get_node()
+  if not node then
+    return
+  end
+  if node:type():find("^body") ~= nil then
+    vim.opt_local.formatoptions:append("a")
+    vim.opt_local.formatoptions:append("w")
+    vim.opt_local.formatoptions:append("n")
+    vim.opt_local.formatoptions:append("t")
+    vim.opt_local.formatoptions:append("c")
+    vim.w.in_body = true
+  else
+    vim.opt_local.formatoptions:remove("a")
+    vim.opt_local.formatoptions:remove("w")
+    vim.opt_local.formatoptions:remove("n")
+    vim.opt_local.formatoptions:remove("t")
+    vim.opt_local.formatoptions:remove("c")
+    vim.w.in_body = false
+  end
+end
+
+local cmdgroup = vim.api.nvim_create_augroup("mailarea", { clear = true })
+vim.api.nvim_create_autocmd({ "CursorMoved", "CursorMovedI" }, {
+  buffer = 0,
+  group = cmdgroup,
+  callback = mail_area_detect,
+})
+mail_area_detect()