add folds and comments to mail ftplugin

[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 36c6eade64709b8deff465c03905c2cf7d9c2136..39eaf3e1639ce29997a05ad1eca1bc287e4f5564 100644 (file)
--- a/.config/lazyvim/after/ftplugin/mail.lua
+++ b/.config/lazyvim/after/ftplugin/mail.lua
@@ -1,3 +1,4 @@
+-- {{{ markdown in mail
 local i, _ = string.find(vim.bo.filetype, "markdown")
 if not i then
   vim.opt_local.filetype = "mail.markdown"
@@ -12,13 +13,35 @@ 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")
+-- {{{ formatting
+vim.opt_local.formatoptions:remove("o") -- would insert current comment leader for o/O
+vim.opt_local.formatoptions:remove("r") -- would insert current comment leader for <CR>
+vim.opt_local.formatoptions:remove("l") -- would not break lines that were long before insert
+
+vim.opt_local.commentstring = "> %s" -- commenting means quoting in mails
+-- }}}
+
+-- {{{ keymaps
+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" }
+)
+
+-- {{{ profiles
 
 vim.keymap.set("n", "<leader>p", "", { buffer = true, desc = "mailplate profiles" })
 
@@ -51,6 +74,11 @@ profile_keymap("F10", "mtfk")
 profile_keymap("F11", "sudetia")
 profile_keymap("F12", "default")
 
+-- }}} profiles
+-- }}}
+
+-- {{{ write mail backups
+
 local function write_mail_backup()
   local tmpdir = vim.fn.expand(os.getenv("TMPDIR") or "/tmp") .. "/mail-backups"
   vim.fn.mkdir(tmpdir, "p", "0o700")
@@ -70,4 +98,46 @@ vim.api.nvim_create_autocmd({ "BufWrite" }, {
   buffer = 0,
 })
 
+-- }}}
+
+-- {{{ mail area detect
+
+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") -- turn on auto-reflow
+    vim.opt_local.formatoptions:append("w") -- trailing whitespace for format=flowed
+    vim.opt_local.formatoptions:append("n") -- numbered lists
+    vim.opt_local.formatoptions:append("t") -- autowrap with textwidth
+    vim.opt_local.formatoptions:append("c") -- autowrap and insert quote (comment) leader
+    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()
+
 vim.cmd.runtime("greeting_abbrevs.vim")
+
+-- }}}
+
+-- vim:foldmethod=marker:foldlevel=0