add new setting for copying the selection (instead of cutting).

lua/luasnip/config.lua

@@ -65,6 +65,12 @@ c = {
 			conf.history = nil
 		end
 
+		if user_config.store_selection_keys ~= nil then
+			conf.cut_selection_keys = user_config.store_selection_keys
+
+			user_config.store_selection_keys = nil
+		end
+
 		for k, v in pairs(user_config) do
 			conf[k] = v
 		end
@@ -125,15 +131,24 @@ c = {
 			end)
 		end
 
-		if session.config.store_selection_keys then
+		if session.config.cut_selection_keys then
 			vim.cmd(
 				string.format(
 					[[xnoremap <silent>  %s  %s]],
-					session.config.store_selection_keys,
+					session.config.cut_selection_keys,
 					require("luasnip.util.select").select_keys
 				)
 			)
 		end
+		if session.config.copy_selection_keys then
+			vim.cmd(
+				string.format(
+					[[xnoremap <silent>  %s  %s]],
+					session.config.copy_selection_keys,
+					require("luasnip.util.select").copy_keys
+				)
+			)
+		end
 	end,
 }
 

lua/luasnip/default_config.lua

@@ -110,7 +110,11 @@ return {
 	-- see :h User, event should never be triggered(except if it is `doautocmd`'d)
 	region_check_events = nil,
 	delete_check_events = nil,
-	store_selection_keys = nil, -- Supossed to be the same as the expand shortcut
+
+	-- preserve default of store_selection_keys.
+	copy_selection_keys = nil,
+	cut_selection_keys = nil,
+
 	ext_opts = {
 		[types.textNode] = {
 			active = { hl_group = "LuasnipTextNodeActive" },

lua/luasnip/init.lua

@@ -844,7 +844,8 @@ local ls_lazy = {
 	config = function() return require("luasnip.config") end,
 	multi_snippet = function() return require("luasnip.nodes.multiSnippet").new_multisnippet end,
 	snippet_source = function() return require("luasnip.session.snippet_collection.source") end,
-	select_keys = function() return require("luasnip.util.select").select_keys end
+	select_keys = function() return require("luasnip.util.select").select_keys end,
+	copy_keys = function() return require("luasnip.util.select").copy_keys end
 }
 
 ls = lazy_table({

lua/luasnip/util/select.lua

@@ -61,6 +61,8 @@ end
 -- Afterwards, we can just use <cmd>lua, which does not change the mode.
 M.select_keys =
 	[[:lua require("luasnip.util.select").pre_cut()<Cr>gv"zs<cmd>lua require('luasnip.util.select').post_cut("z")<Cr>]]
+M.copy_keys =
+	[[:lua require("luasnip.util.select").pre_cut()<Cr>gv"zy<cmd>lua require('luasnip.util.select').post_cut("z")<Cr>]]
 
 local saved_registers
 local lines