CoCoA » CoCoA-5

This is the most amusing and surprising bug I've ever seen.
Evaluating C-<enter> (or C-c C-l) on the first line of this input gives error
<pre>
points := [ [1234567890, 4],
[2,6]];
--> ERROR: Found End-of-Input while looking for the start of an expression
</pre> <pre>
after many tests looking for the killer phantom character, I realized it is "7"
<pre>
points := [ [123456890, 4],
[2,6]];
-- OK -- no 7

use QQ[x,y,z];
F := [ x-9*y^7, --<---- 7
x^4];
--> ERROR: Found End-of-Input ...
</pre>