[Octave-bug-tracker] [bug #37099] Parser does not accept bare '; ' as valid input

[Stefan Mahr]

Follow-up Comment #10, bug #37099 (project octave):

My patch doesn't change this behaviour. Also, MATLAB seems to do the same:


??? [1,,2]
       |
Error: Expression or statement is incorrect--possibly unbalanced (, {, or [.



Surprisingly my patch also doesn't introduce new parser conflicts. (I learned
from jwe, that I should check oct-parse.output before submitting a parser
patch.)

However, jwe said he don't want to add an additional 'input2' statement. My
first try was to modify the 'input' statement as follows:


input           : opt_sep_no_nl input1
                  {
                    parser.stmt_list = $2;
                    YYACCEPT;
                  }


but this doesn't work for some reason. It produces many parser conflicts and
you always have to write ';' or ',' in front of the first statement. Maybe
someone could explain what's the difference between my patch and the lines
above...

I just should keep my hands off the parser. :-)


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