Re: Wrong error message from 2u

["Ruud H.G. van Tol" <rvtol@isolution.nl>]

On 2024-08-12 08:48, Ilya Zakharevich wrote:
> In
>    (23:29) gp > my([a,b,c]=[(u-v)^2,2u*v,(u+v)^2]); c^2-a^2-b^2
>      ***   syntax error, unexpected variable name, expecting ',': ...,c]=[(u-v)^2,2u*v,(u+v)^2]);c^2-a^2-b^2
>      ***                                                                                      ^--------------
>
> the arrow points at the second closing bracket.  The actual problem is
> 2u.

Another example:

? [2u, 1, 2, 3]
  ***   syntax error, unexpected variable name, expecting ',': [2u,1,2,3]
*** ^-

>    P.S.  IMO, 2u should better be parsed (as expected by the user!).

Rather not. For example, 2e1 is already syntax, so can't also mean 2*e1.

-- Ruud