@@ -249,13 +249,15 @@ arguments separated by " " (space) instead of "\t" (tab).

*:lua*

:[range]lua {chunk}

Executes Lua chunk {chunk}.

if {chunk} starts with "=" the rest of the chunk is

evaluated as an expression and printed. `:lua =expr`

is equivalent to `:lua print(vim.inspect(expr))`

Examples: >

:lua vim.api.nvim_command('echo "Hello, Nvim!"')

< To see the Lua version: >

:lua print(_VERSION)

< To see the LuaJIT version: >

:lua print(jit.version)

:lua =jit.version

<

*:lua-heredoc*

:[range]lua << [endmarker]

@@ -1115,11 +1115,23 @@ void ex_lua(exarg_T *const eap)

FUNC_ATTR_NONNULL_ALL

{

size_t len;

char *const code = script_get(eap, &len);

char *code = script_get(eap, &len);

if (eap->skip) {

xfree(code);

return;

}

// When =expr is used transform it to print(vim.inspect(expr))

if (code[0] == '=') {

len += sizeof("print(vim.inspect())") - sizeof("=");

// code_buf needs to be 1 char larger then len for null byte in the end.

// lua nlua_typval_exec doesn't expect null terminated string so len

// needs to end before null byte.

char *code_buf = xmallocz(len);

vim_snprintf(code_buf, len+1, "print(vim.inspect(%s))", code+1);

xfree(code);

code = code_buf;

}

nlua_typval_exec(code, len, ":lua", NULL, 0, false, NULL);

xfree(code);

@@ -141,6 +141,15 @@ describe(':lua command', function()

{4:Press ENTER or type command to continue}^ |

]]}

end)

it('Can print results of =expr', function()

helpers.exec_lua("x = 5")

eq("5", helpers.exec_capture(':lua =x'))

helpers.exec_lua("function x() return 'hello' end")

eq([["hello"]], helpers.exec_capture(':lua = x()'))

helpers.exec_lua("x = {a = 1, b = 2}")

eq("{\n a = 1,\n b = 2\n}", helpers.exec_capture(':lua =x'))

end)

end)

describe(':luado command', function()