# obsolete

%conflict rangeORenum {
  my $s = $self->YYLookBothWays('type', ';');
  if ($s =~ /^type ID = \( ID ( , ID )* \) ;$/x) 
       { $self->YYSetReduce([',', ')'], 'ID:ENUM' ); }
  else { $self->YYSetReduce([',', ')'], 'ID:RANGE' ); }
}

%token ID  = /([A-Za-z]\w*)/
%token NUM = /(\d+)/

%left   ','
%left   '-' '+'
%left   '*' '/'

%expect-rr 2

%%

type_decl : 'type' ID '=' type ';'
;

type : 
      %name ENUM
      '(' id_list ')'
    | %name RANGE
      expr '..' expr
;

id_list : 
      %name ID:ENUM
      ID                      %PREC rangeORenum
    | id_list ',' ID
;

expr : '(' expr ')'   { $_[2] } /* bypass */
    | %name PLUS     expr '+' expr
    | %name MINUS    expr '-' expr
    | %name TIMES    expr '*' expr
    | %name DIV      expr '/' expr
    | %name COMMA    expr ',' expr
    | %name ID:RANGE
      ID                     %PREC rangeORenum
    | %name NUM      NUM
;

%%

=head1 SYNOPSIS

See 

=over 2

=item * File pascalenumeratedvsrange.eyp in examples/debuggintut/

=item * The Bison manual L<http://www.gnu.org/software/bison/manual/html_mono/bison.html>

=back

Compile it with something like:

      eyapp -TC pascalenumeratedvsrangePPCR.eyp

Run it with this options:

    $ ./pascalenumeratedvsrangePPCR.pm -t -i -m 1 -c 'type e = (x, y, z);'

Try also these inputs:

                type e = (x) .. (y);
                type r = (x) ..  y ;
                type r = (x+2)*3 ..  y/2 ;
                type e = (x, y, z);
                type e = (x);
                type e = (x, y, z) .. (u+v);

=cut