fixed handling of mupliple arguments by pretty print

.luacheckrc

@@ -26,4 +26,6 @@ read_globals = {
   "assert"
 }
 
-exclude_files = {  }
+exclude_files = {
+  "spec/utfTerminal.lua"
+}

Makefile

@@ -14,10 +14,10 @@ stylua:
 
 test:
 	eval $(luarocks path --lua-version 5.1 --bin)
-	busted --run unit
+	busted -o spec/utfTerminal.lua --run unit
 
 watch:
-	while sleep 0.1; do ls -d spec/**/*.lua | entr -d -c make test; done
+	while sleep 0.1; do ls -d spec/**/*.lua | entr -d -c busted -o spec/utfTerminal.lua --run unit; done
 
 watch_current:
-	while sleep 0.1; do ls -d spec/**/*.lua | entr -d -c busted --run unit -t=current; done
+	while sleep 0.1; do ls -d spec/**/*.lua | entr -d -c busted -o spec/utfTerminal.lua --run unit -t=current; done

README.md

@@ -40,6 +40,8 @@ otherwise, install with your favourite package manager and add
 
 ## ⚙️  Configuration
 
+All settings are very straight forward, but please read below about `preserve_context` option below.
+
 <details><summary>Default Settings</summary>
 
 <!-- config:start -->
@@ -49,7 +51,8 @@ opts = {
   buffer = {
     prepend_result_with = '=> ',
     save_path = vim.fn.stdpath('state') .. '/lua-console.lua',
-    load_on_start = true -- load saved session on first entry
+    load_on_start = true, -- load saved session on first entry
+    preserve_context = true -- preserve context between executions
   },
   window = {
     anchor = 'SW',
@@ -83,8 +86,31 @@ opts = {
 - Hit `Enter` in normal mode to evaluate a variable, statement or an expression in the current line. 
 - Visually select a range of lines and press `Enter` to evaluate the code in the range. 
 - The evaluation of the last line is returned and printed, so no `return` is needed in most cases.
-- Use `print()` in your code to output the result into the console.  Objects and functions are pretty printed. 
+- Use `print()` in your code to output the results into the console.  Objects and functions are pretty printed. 
 - Press `M` to load Neovim messages into the console. 
-- Press `gf` to follow the paths in stack traces and to function sources. 
+- Press `gf` to follow the paths in stack traces and to function sources. Truncated paths work too.
 - Use `S` and `L` to save / load the console session to preserve history of your hacking. 
 - You can resize the console with `<C-Up>` and `<C-Down>`.
+
+## 📓  Notes on globals, locals and preserving context
+> [!NOTE]
+> Highlights information that users should take into account, even when skimming.
+
+> [!TIP]
+> Optional information to help a user be more successful.
+
+> [!IMPORTANT]
+> Crucial information necessary for users to succeed.
+
+> [!WARNING]
+> Critical content demanding immediate user attention due to potential risks.
+
+> [!CAUTION]
+> Negative potential consequences of an action.
+-
+-
+
+## Alternatives and comparison
+
+-
+-

doc/lua-console.nvim_api.txt

@@ -2,9 +2,12 @@
 ------------------------------------------------------------------------------
                                                                 *load_console()*
 
-`load_console`()
+`load_console`({on_start})
+
 
 saved console
+Parameters ~
+    {on_start} `(boolean)`
 
 ------------------------------------------------------------------------------
                                                        *append_current_buffer()*

lua/lua-console/utils.lua

@@ -8,6 +8,16 @@ local to_table = function(str)
   return vim.split(str or '', '\n', { trimempty = true })
 end
 
+local pack = function(...)
+  local ret = {}
+  for i = 1, select("#", ...) do
+    local el = select(i, ...)
+    table.insert(ret, el)
+  end
+
+  return ret
+end
+
 local toggle_help = function()
   local buf = Lua_console.buf
   local cm = config.mappings
@@ -28,8 +38,6 @@ local toggle_help = function()
 
     vim.api.nvim_buf_set_extmark(buf, ns, 0, 0, { id=2, virt_text = { { message, 'Comment' } }, virt_text_pos = 'overlay', undo_restore = false, invalidate = true })
   end
-
-  ids = vim.api.nvim_buf_get_extmarks(buf, ns, 0, -1, {})
 end
 
 ---Loads saved console
@@ -48,8 +56,8 @@ end
 local infer_truncated_path = function(truncated_path)
   local pos, _ = truncated_path:find('/lua/')
   local path = truncated_path:sub(pos + 1, #truncated_path)
-
   local found = vim.api.nvim_get_runtime_file(path, true)
+
   return not vim.tbl_isempty(found) and found[1] or false
 end
 
@@ -97,7 +105,6 @@ end
 local pretty_print = function(...)
   local result, var_no = '', ''
   local nargs = select('#', ...)
-
   for i=1, nargs do
     local o = select(i, ...)
 
@@ -189,11 +196,15 @@ local eval_lua = function(lines)
 	print_buffer = {}
 
   ---@cast code function
-  local status, result = xpcall(code, debug.traceback)
-  if status then 
-    pretty_print(result)
+  local result = pack(xpcall(code, debug.traceback))
+  if result[1] then
+    table.remove(result, 1)
+    if #result > 0 then pretty_print(unpack(result))
+    else
+      pretty_print(nil)
+    end
   else
-    vim.list_extend(print_buffer, clean_stacktrace(result))
+    vim.list_extend(print_buffer, clean_stacktrace(result[2]))
   end
 
   return print_buffer

spec/spec_helper.lua

@@ -59,7 +59,7 @@ M.get_virtual_text = function(buf, line)
   local ids = vim.api.nvim_buf_get_extmarks(buf, ns, line, -1, {})
 
   if vim.tbl_isempty(ids) then
-  	LOG('No extmarks found')
+  	_G.LOG('No extmarks found')
   	return
   end
 

spec/unit/lua-console_spec.lua

@@ -1,6 +1,7 @@
 local h = require('spec_helper')
 
 describe('lua-console.nvim', function()
+  local buf, win
   local console, config
   local expected, result
 
@@ -47,8 +48,6 @@ describe('lua-console.nvim', function()
     end)
 
     describe('lua-console - open/close window', function()
-      local buf, win
-
       before_each(function()
         console.toggle_console()
         buf = vim.fn.bufnr('lua-console')

spec/unit/mappings_spec.lua

@@ -193,7 +193,8 @@ describe("lua-console.nvim - mappings", function()
 			h.send_keys("gf")
 
 			local new_buf = vim.fn.bufnr()
-			assert.has_string(vim.fn.bufname(new_buf), "/usr/share/nvim-linux64/share/nvim/runtime/lua/vim/lsp/diagnostic.lua")
+			local path = vim.fn.expand('$VIMRUNTIME') .. "/lua/vim/lsp/diagnostic.lua"
+			assert.has_string(vim.fn.bufname(new_buf), path)
 
 			local line = vim.fn.line('.')
 			assert.is_same(line, 189)

spec/unit/utils_spec.lua

@@ -89,6 +89,16 @@ describe("lua-console.utils", function()
 			result = eval_lua(code)
 			assert.has_string(result, "nil")
 		end)
+
+		it('handles code that returns multiple values', function()
+			code = h.to_table([[
+				a = 'test_string'
+				a:find('str')
+			]])
+
+			result = eval_lua(code)
+			assert.has_string(result, "[1] 6, [2] 8")
+		end)
 	end)
 
 	describe('preserving context', function()
@@ -164,7 +174,7 @@ describe("lua-console.utils", function()
 		local eval_lua = utils.eval_lua
 		local code, result, expected
 
-		it("pretty prints objects", function()
+		it("pretty prints objects #current", function()
 			code = h.to_table([[
 				local ret = {}
 				for i=1, 5 do
@@ -381,8 +391,9 @@ describe("lua-console.utils", function()
 			end)
 
 			it("infers truncated paths in the stacktrace", function()
+			  local rtp = vim.fn.expand('$VIMRUNTIME')
 				local truncated = '...e/nvim-linux64/share/nvim/runtime/lua/vim/diagnostic.lua'
-				expected = "/usr/share/nvim-linux64/share/nvim/runtime/lua/vim/diagnostic.lua"
+				expected = rtp .. "/lua/vim/diagnostic.lua"
 
       	local path, _ = utils.get_path_lnum(truncated)
 				assert.is_same(expected, path)
@@ -395,15 +406,17 @@ describe("lua-console.utils", function()
 			end)
 
 			it("infers truncated paths and line number in the stacktrace", function()
+      	local truncated = '...testing/start/lua-console.nvim/lua/lua-console/utils.lua'
 				content = h.to_table([[
       		'...testing/start/lua-console.nvim/lua/lua-console/utils.lua:85'
 				]])
 				h.set_buffer(buf, content)
-				vim.api.nvim_win_set_cursor(win, { 11, 0 })
+				vim.api.nvim_win_set_cursor(win, { 1, 0 })
 
 				expected = vim.fn.expand('$XDG_PLUGIN_PATH') .. '/lua/lua-console/utils.lua'
 
-      	path, lnum = utils.get_path_lnum(truncated)
+      	local path, lnum = utils.get_path_lnum(truncated)
+				assert.is_same(expected, path)
 				assert.is_same(85, lnum)
 			end)
 
@@ -427,7 +440,7 @@ describe("lua-console.utils", function()
 				vim.api.nvim_win_set_cursor(win, { 11, 0 })
 
       	local truncated = ".../.local/share/nvim/lazy/arrow.nvim/lua/arrow/persist.lua"
-      	local path, lnum = utils.get_path_lnum(truncated)
+      	local _, lnum = utils.get_path_lnum(truncated)
 				assert.equals(125, lnum)
 			end)