orginial: : 0 :
trimmed :0:
token is empty
token is not true
token is false
token is not equal an empty string
token is not identic to an empty string
token is not identic to false
token is identic to 0
token is equal to 0

orginial: : :
trimmed ::
token is empty
token is not true
token is false
token is equal an empty string
token is identic to an empty string
token is not identic to false
token is not identic to 0
token is not equal to 0

orginial: :, :
trimmed :,:
token is not empty
token is true
token is not false
token is not equal an empty string
token is not identic to an empty string
token is not identic to false
token is not identic to 0
token is not equal to 0

orginial: :SELECT:
trimmed :SELECT:
token is not empty
token is true
token is not false
token is not equal an empty string
token is not identic to an empty string
token is not identic to false
token is not identic to 0
token is not equal to 0

orginial: ::
trimmed ::
token is empty
token is not true
token is false
token is equal an empty string
token is identic to an empty string
token is not identic to false
token is not identic to 0
token is not equal to 0

orginial: :\n:
trimmed :\n:
token is not empty
token is true
token is not false
token is not equal an empty string
token is not identic to an empty string
token is not identic to false
token is not identic to 0
token is not equal to 0