Limiting numbers to a range

[jnbbender]

Different rules which define limits on a number. For example, num0 is in the range 0-31, num1 is in range 32-1500, etc.

I have the following:

start -> num0

num0    -> number {% function(d,l,reject) {
                                        if (d <=31) return d;
                                        else reject;
                                   }
                               %}

num1    -> number {% function(d,l,reject) {
                                        if (d <=1500) return d;
                                        else reject;
                                   }
                               %}

number -> 
               digits "." digits {% (data) => Number(data[0] + "." + data[2]) %}
              | digits {% (data) => Number(data.join("")) %}

digits ->
         digit {% id %}
       | digit digits {% (data) => data.join("") %}

digit -> [0-9] {% id %}

So when I test with the following nearley-test -i "28" grammar.js I get 2 results, which figures since this is pretty ambiguous. Is there a way to define number ranges?

Thanks