Undo changes to is_a_valid_number, because it's doesn't follow the JSON spec. Tests : fail13.json, fail29.json and fail30.json are valid with this implementation, so we go back to the previous implementation.
Undo changes to is_a_valid_number, because it's doesn't follow the JSON spec. Tests : fail13.json, fail29.json and fail30.json are valid with this implementation, so we go back to the previous implementation.

Eiffel-World/json