sample.art

define :sampleValidator is :validator [
    
    ;------------------
    ; parameters
    ;------------------

    ; override the `params` dictionary key
    ; in case you want to define validator-specific params

    ;------------------
    ; built-in data
    ;------------------

    ; any private data that you want 
    ; the validator to have access to 

    ;------------------
    ; methods
    ;------------------                                          

    action: method [str, opts][
        ; main action
    ]

    test: method [][
        #[
            valid: [
                ; here we have to add valid cases 
                ; that will return *true* when passed to our main action
            ]

            invalid: [
                ; here we have to add invalid cases 
                ; that will return *false* when passed to our main action
            ]
        ]
    ]
]