Geocoder

geocoder.js

const addresses = require("./wien22.json");

const lookup = function(name, number) {
	return addresses.features.find(function(feature) {
		return feature.properties["NAME_STR"].indexOf(name) === 0 && feature.properties["NAME_ONR"].indexOf(number) === 0;
	});
};

const splitAddress = function(fullName) {
	const numberReg = /\ [1-9][0-9]?([-–][1-9][0-9]?)?/g;
	const doorsReg = /\ [1-9][0-9]?(\/\w{1,3})?(\/\w{1,3})/;
	const streetReg = /([\w\-\ßäöüÄÖÜ]+)(\ [1-9])?/;

	let streetMatch = fullName.match(streetReg);
	let streetName = (streetMatch && streetMatch.length >= 2 ? streetMatch[1] : "").trim();

	let numberMatch = fullName.match(numberReg);
	let number = numberMatch && numberMatch.length === 1 ? numberMatch[0].trim() : "";

	let doorsMatch = fullName.match(doorsReg);
	let stairCase = "";
	let door = "";
	if (doorsMatch && doorsMatch.length === 3) {
		stairCase = (doorsMatch[1] || "").replace("/", "");
		door = doorsMatch[2].replace("/", "");
	} else if (doorsMatch && doorsMatch.length === 2) {
		door = doorsMatch[1].replace("/", "");
	}

	return {
		streetName: streetName,
		houseNumber: number,
		stairCase: stairCase,
		doorNumber: door
	};
};

const testData = require("vereine.json");

for (let key in testData) {
	let entry = testData[key];
	
	if (entry.adresse == null) {
		continue;
	}

	let ogdAddress = splitAddress(entry.adresse);
	let ogdDataset = lookup(ogdAddress.streetName, ogdAddress.houseNumber);

	if (ogdDataset == null) {
		console.log(entry.adresse, ogdAddress.streetName, ogdAddress.houseNumber);	
	}
}