Error in operator parsing

[mrkulk]

Here's a simple piece of code which fails:

julia> @matlab begin
       a=2*2*2*2;
       end
 a = *(2, 2, 2, 2);
     |
Error: Unexpected MATLAB operator.

Is the parser restricted to operations on two numbers at a time? The above code is fine with explicit parenthesis around every pair of numbers.

[rundong08]

I've met the same issue.
@matlab 2*2 will return the correct answer, but @matlab 2*2*2 won't.
It seems that 2*2*2 was parsed into *(2,2,2), which is correct for Julia, but not correct for MATLAB.
A quick and dirty workaround is to add more parenthesis, for example @matlab (2*2)*2 will give you the right answer.

My julia version info is:

Julia Version 0.3.6
Commit 0c24dca (2015-02-17 22:12 UTC)
Platform Info:
  System: Linux (x86_64-unknown-linux-gnu)
  CPU: Intel(R) Xeon(R) CPU E5-2620 0 @ 2.00GHz
  WORD_SIZE: 64
  BLAS: libopenblas (USE64BITINT DYNAMIC_ARCH NO_AFFINITY Sandybridge)
  LAPACK: libopenblas
  LIBM: libopenlibm
  LLVM: libLLVM-3.3

[simonster]

This will work with the new mat string literal.

[musm]

close?

[simonster]

Well, it's not fixed AFAIK. But we could just deprecate the @matlab macro. Trying to rewrite the Julia AST to make it valid MATLAB was probably not the right approach.

[ChrisRackauckas]

The string macro seems safer and more expressive, so it's probably best to deprecate the @matlab macro since it's essentially just a trap. Is there any case where it's better than using mat""?

[musm]

closed, @matlab has been deprecated in favor of mat"..."