Is the "spec", the rules listed under the "syntax" heading? Or is it the python script? Or something else I missed? Because the python is in conflict with th

Is the "spec", the rules listed under the "syntax" heading? Or is it the python script? Or something else I missed? Because the python is in conflict with the syntax rules in that the rules say a cell ends with one or more tabs, but the python says a cell can end with the end of the line, even if there are no trailing tabs.