From f08e1712cfb07da5311ff05056c1bb95d6987c2e Mon Sep 17 00:00:00 2001
From: DarkWiiPlayer <darkwiiplayer@hotmail.com>
Date: Fri, 2 Feb 2024 14:07:36 +0100
Subject: [PATCH] Add nvim simple snippet manager

---
 vim/lua/snip.lua    | 116 ++++++++++++++++++++++++++++++++++++++++++++
 vim/plugin/snip.lua |   7 +++
 2 files changed, 123 insertions(+)
 create mode 100644 vim/lua/snip.lua
 create mode 100644 vim/plugin/snip.lua

diff --git a/vim/lua/snip.lua b/vim/lua/snip.lua
new file mode 100644
index 0000000..5321854
--- /dev/null
+++ b/vim/lua/snip.lua
@@ -0,0 +1,116 @@
+local snip = {
+	snippets = {};
+	ft = {};
+}
+
+function snip:new(name, filetype, snippet)
+	if snippet==nil then
+		return self:new(name, nil, filetype)
+	end
+
+	if type(snippet) ~= "table" then
+		snippet = { snippet }
+	end
+
+	if filetype then
+		if not self.ft[filetype] then
+			self.ft[filetype] = {snippets = {}}
+		end
+		self.ft[filetype].snippets[name] = snippet
+	else
+		self.snippets[name] = snippet
+	end
+end
+
+function snip:each(filetype)
+	return coroutine.wrap(function()
+		for name, snippet in pairs(snip.snippets) do
+			coroutine.yield(name, snippet)
+		end
+		if filetype and snip.ft[filetype] then
+			for name, snippet in pairs(snip.ft[filetype].snippets) do
+				coroutine.yield(name, snippet)
+			end
+		end
+	end)
+end
+
+function snip:get(name, filetype)
+	local snippet = snip.snippets[name]
+	if filetype and snip.ft[filetype] then
+		snippet = snip.ft[filetype].snippets[name] or snippet
+	end
+	if snippet then
+		return snippet
+	end
+end
+
+local function complete(lead)
+	local names = {}
+	local known = {}
+	for name, snippet in snip:each(vim.o.filetype) do
+		if (name:find("^"..lead)) then
+			if type(snippet)=="string"
+			or snippet.condition == nil
+			or snippet.condition() then
+				if not known[name] then
+					table.insert(names, name)
+				end
+				known[name] = true
+			end
+		end
+	end
+	table.sort(names)
+	return names
+end
+
+local function process_item(item, lines)
+	if type(item) == "string" then
+		for _, line in ipairs(vim.fn.split(item, "\n")) do
+			table.insert(lines, line)
+		end
+	elseif type(item) == "function" then
+		process_item(item(), lines)
+	else
+		error("Unable to handle snippet item of type "..type(item))
+	end
+end
+
+function snip:insert(name)
+	local snippet = self:get(name, vim.o.filetype)
+
+	if not snippet then
+		print "No snippet with that name"
+		return
+	end
+
+	local mode = snippet.mode or "l"
+
+	local lines = {}
+
+	for _, item in ipairs(snippet) do
+		process_item(item, lines)
+	end
+
+	vim.api.nvim_put(lines, mode, true, true)
+end
+
+vim.api.nvim_create_user_command("Snip", function(params)
+	snip:insert(params.args)
+end, {nargs=1, complete=complete})
+
+vim.api.nvim_create_user_command("Snips", function()
+	local list = {}
+	for name in snip:each(vim.o.filetype) do
+		table.insert(list, name)
+	end
+	table.sort(list)
+	print(table.concat(list, ", "))
+end, {})
+
+vim.api.nvim_create_user_command("SnipReload", function()
+	package.loaded.snip = nil
+	require "snip"
+end, {})
+
+return snip
diff --git a/vim/plugin/snip.lua b/vim/plugin/snip.lua
new file mode 100644
index 0000000..e4525a5
--- /dev/null
+++ b/vim/plugin/snip.lua
@@ -0,0 +1,7 @@
+require "snip"
+for _, path in ipairs(vim.api.nvim__get_runtime({"snip/snippets.lua"}, true, {})) do
+	local code = io.open(path):read("*a")
+	if code then
+		dofile(path)
+	end
+end