white space significant in nools rule constraints, when it shouldn't be. source of easy errors.

[williamwsmith]

This constraint compiles/executes:

dw : DimensionalWeight dw.value != null && (dw.valid == null || dw.valid == false);

While this one does not:

dw : DimensionalWeight dw.value !=null && (dw.valid == null || dw.valid == false);

The white space between the "!=" and the "null" has been removed.

[DevSide]

I looks like this is a specific bug with null and the whitespace.
You can also use isNull(dw.value)

var indexOf = definedFuncs.indexOf; var hasOwnProperty = Object.prototype.hasOwnProperty;return function matcher0(fact, hash){var dw = hash.dw;var null = fact.null; return !!(dw['value'] == null);}

SyntaxError: Unexpected token null
    at exports.toJs (nools/lib/constraintMatcher.js:441:13)
    at Object.exports.getMatcher (nools/lib/constraintMatcher.js:448:12)

[DevSide]

PR #204