Issuesin document

Section 3.4.8.1

stmt:
   "let" '(' var ')'
     {
       $<context>$ = push_context ();
       declare_variable ($3);
     }
   stmt
     {
       $$ = $5;
       pop_context ($<context>5);
     }

Shouldn't $$ = $6 be $$ = $3?, same for 3.4.6.2


There is no formal description of the Bison syntax. Given:


    %token  <operator>  OR      "||"
    %token  <operator>  LE 134  "<="
    %left  OR  "<="

and
    %token
        OR     "||"
        LPAREN "("
        RPAREN ")"
        '\n'   _("end of line")
      <double>
        NUM    _("number")

Is the following legal?
    %token  <operator>  OR      "||"
            LPAREN "("
    
and
    %token  <operator>
            OR      "||"
            LPAREN "("
            <operator> LE 134
               "<=?

You do not specify the yylex interface explicitly. Is it fair to assume that for:
     %token ARROW "=>"

yylex returns a token with some Bison defined number and not two tokens, '=' and '>-?