LuaMacros脚本加载报错求助：第44行存在意外符号')'

Hey there! Let's break down this error you're hitting: 2018-04-03 09:43:01:685 [LUA] ERROR: Cannot load buffer. [string "LuaMacros script"]:44: unexpected symbol near ')'

First off, this error means the Lua interpreter ran into invalid syntax on line 44 of your script, specifically right next to a closing parenthesis ). This almost always comes down to a mismatched bracket, incomplete statement, or stray punctuation in that section of code.

Looking at the code snippet you shared:

-- assign logical name to macro keyboard
lmc_assign_keyboard('MACROS');
-- define callback for whole device
lmc_set_handler('MACROS',function(button, direction)
  if (direction == 1) then return end -- ignore down
  if...

The truncated if... at the end is a big red flag—this unfinished if statement is almost certainly making the parser choke. Even if that's just a copy-paste oversight, here are the key things to check on line 44 and the lines around it:

• Mismatched parentheses: Double-check that every opening ( has a corresponding closing ). For example, writing if (button == 101 (missing the closing )) or if button == 101) (extra closing )) will trigger this exact error.
• Incomplete conditional statements: Make sure every if has a then and a matching end. If your code cuts off mid-if (like the if... in your snippet), the interpreter can't resolve the syntax structure.
• Stray symbols: Watch out for accidental extra punctuation (like a random ) floating around) or non-ASCII symbols (like Chinese parentheses) that Lua doesn't recognize as valid syntax.

Example of a Quick Fix #

Suppose line 44 had an extra closing parenthesis like this:

if button == 101) then  -- Oops, extra ) here
  lmc_send_keys('Hello World')
end

Just remove the stray ) to fix the syntax issue:

if button == 101 then
  lmc_send_keys('Hello World')
end

If you can share the full code around line 44, we can pinpoint the exact problem—but starting with these checks should help you find the culprit quickly.

内容的提问来源于stack exchange，提问作者BENZINI