Beginning binding/config for luasnip

vim/.config/nvim/init.vim

@@ -7,6 +7,7 @@ vim.g.mapleader = ','
 
 require('user.lspconfig')
 require('user.indentblanklines')
+require('user.luasnip')
 
 EOF
 

vim/.config/nvim/lua/user/luasnip.lua

@@ -0,0 +1,82 @@
+local ls = require("luasnip")
+
+local fmt = require('luasnip.extras.fmt')
+local rep = require('luasnip.extras').rep
+
+-- some shorthands...
+-- Taken from video/guide. Honestly I don't like these should probably work on learning their names
+local s = ls.snippet
+local sn = ls.snippet_node
+local t = ls.text_node
+local i = ls.insert_node
+local f = ls.function_node
+local c = ls.choice_node
+local d = ls.dynamic_node
+local r = ls.restore_node
+local l = require("luasnip.extras").lambda
+local rep = require("luasnip.extras").rep
+local p = require("luasnip.extras").partial
+local m = require("luasnip.extras").match
+local n = require("luasnip.extras").nonempty
+local dl = require("luasnip.extras").dynamic_lambda
+local fmt = require("luasnip.extras.fmt").fmt
+local fmta = require("luasnip.extras.fmt").fmta
+local types = require("luasnip.util.types")
+local conds = require("luasnip.extras.conditions")
+local conds_expand = require("luasnip.extras.conditions.expand")
+
+ls.config.set_config {
+  history = true,
+
+  -- This allows dynamic snippets to update as you type
+  updateevents = "TextChanged,TextChangedI"
+}
+
+-- Expand if expandable, or jump forward if jumpable
+-- If neither, do nothing queitly
+vim.keymap.set({ "i", "s" }, "<C-K>", function()
+  if ls.expand_or_jumpable() then
+    ls.expand_or_jump()
+  end
+end, { silent = true })
+-- end, { silent = true })
+
+-- Jump backwards to the previous jumpable point
+vim.keymap.set({ "i", "s" }, "<C-J>", function()
+  if ls.jumpable(-1) then
+    ls.jump(-1)
+  end
+end, { silent = true })
+
+-- Selecting from a list of options in a choice node
+vim.keymap.set({ "i" }, "<C-L>", function()
+  if ls.choice_active() then
+    ls.change_choice(1)
+  end
+end)
+
+-- Allow us to hot reload snippets
+vim.keymap.set("n", "<leader><leader>s", "<cmd>source ~/.config/nvim/lua/user/luasnip.lua<CR>")
+
+ls.add_snippets('lua', {
+  ls.parser.parse_snippet("expand", "-- this is what was expanded!"),
+  ls.parser.parse_snippet("lf", "local $1 = function($2)\n  $0\nend"),
+  ls.parser.parse_snippet("mf", "$1.$2 = function($3)\n  $0\nend"),
+  -- Example from snippet writing guide: https://github.com/L3MON4D3/LuaSnip/blob/master/Examples/snippets.lua#L190
+	s(
+		"fmt1",
+		fmt("To {title} {} {}.", {
+			i(2, "Name"),
+			i(3, "Surname"),
+			title = c(1, { t("Mr."), t("Ms.") }),
+		})
+	),
+  -- Example from video: https://www.youtube.com/watch?v=Dn800rlPIho
+	s(
+		"req",
+		fmt("local {} = require('{}')", {
+			i(1, "default"),
+      rep(1)
+		})
+	),
+})