marion.json

{
    "coverage": {
        "US Census": {
            "geoid": "19125",
            "name": "Marion County",
            "state": "Iowa"
        },
        "country": "us",
        "state": "ia",
        "county": "Marion"
    },
    "schema": 2,
    "layers": {
        "addresses": [
            {
                "name": "county",
                "data": "ftp://ftp.igsb.uiowa.edu/gis_library/counties/Marion/Address_63.zip",
                "license": {
                    "text": "Public Domain",
                    "attribution": false,
                    "share-alike": false
                },
                "year": "2012?",
                "protocol": "ftp",
                "compression": "zip",
                "conform": {
                    "number": {
                        "function": "regexp",
                        "field": "address",
                        "pattern": "^([0-9]+)"
                    },
                    "street": {
                        "function": "regexp",
                        "field": "address",
                        "pattern": "^(?:[0-9]+ )(.*)",
                        "replace": "$1"
                    },
                    "unit": {
                        "function": "regexp",
                        "field": "address",
                        "pattern": "^.* ((Unit|Apt) [0-9A-Za-z])$",
                        "replace": "$1"
                    },
                    "city": "POSTAL_COM",
                    "district": "COUNTY",
                    "region": "STATE",
                    "postcode": "ZIP_CODE",
                    "format": "shapefile"
                }
            }
        ]
    }
}