160 lines
3.5 KiB
Lua
160 lines
3.5 KiB
Lua
local luasnip = require("luasnip")
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local types = require("luasnip.util.types")
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local s = luasnip.snippet
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local sn = luasnip.snippet_node
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local f = luasnip.function_node
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local t = luasnip.text_node
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local i = luasnip.insert_node
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local c = luasnip.choice_node
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local d = luasnip.dynamic_node
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luasnip.config.setup({
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ext_opts = {
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[types.choiceNode] = {
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active = {
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virt_text = { { "●", "GruvboxOrange" } },
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},
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},
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[types.insertNode] = {
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active = {
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virt_text = { { "●", "GruvboxBlue" } },
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},
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},
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},
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})
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luasnip.add_snippets("all", {
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s("date", { f(function(_, _)
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return os.date("%Y-%m-%d")
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end) }),
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s("datetime", { f(function(_, _)
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return os.date("%Y-%m-%d %H:%M:%S")
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end) }),
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s("diso", { f(function(_, _)
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return os.date("%Y-%m-%dT%H:%M:%S")
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end) }),
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s("disoutc", { f(function(_, _)
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return os.date("!%Y-%m-%dT%H:%M:%SZ")
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end) }),
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})
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-- Java snippets
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local function jdocsnip(args, _, old_state)
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-- !!! old_state is used to preserve user-input here. DON'T DO IT THAT WAY!
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-- Using a restoreNode instead is much easier.
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-- View this only as an example on how old_state functions.
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local nodes = {
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t({ "/**", " * " }),
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i(1, "A short Description"),
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t({ "", "" }),
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}
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-- These will be merged with the snippet; that way, should the snippet be updated,
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-- some user input eg. text can be referred to in the new snippet.
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local param_nodes = {}
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if old_state then
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nodes[2] = i(1, old_state.descr:get_text())
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end
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param_nodes.descr = nodes[2]
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-- At least one param.
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if string.find(args[2][1], ", ") then
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vim.list_extend(nodes, { t({ " * ", "" }) })
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end
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local insert = 2
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for _, arg in ipairs(vim.split(args[2][1], ", ", true)) do
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-- Get actual name parameter.
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arg = vim.split(arg, " ", true)[2]
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if arg then
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local inode
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-- if there was some text in this parameter, use it as static_text for this new snippet.
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if old_state and old_state[arg] then
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inode = i(insert, old_state["arg" .. arg]:get_text())
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else
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inode = i(insert)
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end
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vim.list_extend(nodes, { t({ " * @param " .. arg .. " " }), inode, t({ "", "" }) })
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param_nodes["arg" .. arg] = inode
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insert = insert + 1
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end
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end
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if args[1][1] ~= "void" then
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local inode
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if old_state and old_state.ret then
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inode = i(insert, old_state.ret:get_text())
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else
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inode = i(insert)
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end
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vim.list_extend(nodes, { t({ " * ", " * @return " }), inode, t({ "", "" }) })
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param_nodes.ret = inode
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insert = insert + 1
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end
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if vim.tbl_count(args[3]) ~= 1 then
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local exc = string.gsub(args[3][2], " throws ", "")
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local ins
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if old_state and old_state.ex then
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ins = i(insert, old_state.ex:get_text())
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else
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ins = i(insert)
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end
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vim.list_extend(nodes, { t({ " * ", " * @throws " .. exc .. " " }), ins, t({ "", "" }) })
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param_nodes.ex = ins
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insert = insert + 1
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end
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vim.list_extend(nodes, { t({ " */" }) })
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local snip = sn(nil, nodes)
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-- Error on attempting overwrite.
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snip.old_state = param_nodes
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return snip
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end
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luasnip.add_snippets("java", {
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-- Very long example for a java class.
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s("fn", {
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d(6, jdocsnip, { 2, 4, 5 }),
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t({ "", "" }),
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c(1, {
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t("public "),
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t("private "),
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}),
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c(2, {
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t("void"),
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t("String"),
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t("char"),
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t("int"),
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t("double"),
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t("boolean"),
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i(nil, ""),
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}),
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t(" "),
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i(3, "myFunc"),
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t("("),
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i(4),
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t(")"),
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c(5, {
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t(""),
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sn(nil, {
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t({ "", " throws " }),
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i(1),
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}),
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}),
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t({ " {", "\t" }),
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i(0),
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t({ "", "}" }),
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}),
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}, {
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key = "java",
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})
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require("luasnip.loaders.from_vscode").lazy_load()
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require("luasnip").filetype_extend("java", { "javadoc", "java-tests" })
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