Re: SQL grammar

[RichardT]

Hi. Also, here is a simplified version of my bison file. You can just copy
and paste it in a file and compile it with:

bison -y -v -d  file_name.y




%token  NOT IN UNION ICONST SELECT FROM SCONST

%left UNION
%left '+' '-'
%left '*' '/'


%%


search_cond:    NOT IN '(' exp_list ')'
                | NOT IN '(' query_list ')'
                ;


exp_list:   exp_list ',' expression
            | expression
            ;

query_list: query_list UNION query_list
            | '(' query_list ')'
            | query_specification
            ;


expression: ICONST
            | expression '+' expression
            | expression '-' expression
            | expression '/' expression
            | expression '*' expression
            | '(' expression ')'
            | '(' query_specification ')'
            ;

query_specification:    SELECT '*' FROM table
                        ;

table:  SCONST
        ;


%%




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