US Address Parser

This is a D port of the (partial) C# port of the Perl CPAN module Geo::StreetAddress::US. It's a regex-based street address parser for the United States.

Building and testing:

This project currently supports building through the dub package management and build system.

To run unittests and have the option of manually entering some addresses for the algorithm to parse, invoke DUB like so:

dub --config=interactive --build=unittest

Example usage:

import geo.street_address.us;

void main(string[] args)
{
	import std.algorithm.sorting : sort;
	import std.array;
	import std.meta : aliasSeqOf;
	import std.stdio;
	import std.uni : toUpper;

	auto loop = false;

	writeln("Address Parser Driver");
	writeln(std.array.replicate("-", 40));
	writeln();
	writeln("Example Input:");
	writeln("125 Main St, Richmond VA 23221");
	writeln();

	do
	{
		writeln("Type an address and press <ENTER>:");
		auto input = readln();

		auto result = parseAddress(input);
		if (result is null)
		{
			writeln("ERROR. Input could not be parsed.");
		}
		else
		{
			writeln("RESULT: ", result.toString());

			enum properties = sort(result.propertyNames.dup);
			foreach (property; aliasSeqOf!properties)
			{
				writefln(
					"%30s : %s",
					property,
					__traits(getMember, result, property));
			}
		}

		writeln();
		writeln("Try again? [Y/N] ");

		loop = readln().toUpper == "Y";
	}
	while (loop);
}

Example output:

> dub --config=interactive
Performing "debug" build using dmd for x86_64.
geo_street_address_us ~master: building configuration "interactive"...
Linking...
Running .\bin\street_address_parser_us.exe
Address Parser Driver
----------------------------------------

Example Input:
125 Main St, Richmond VA 23221

Type an address and press <ENTER>:
125 Main St, Richmond VA 23221
RESULT: 125 MAIN ST; RICHMOND, VA  23221
                          city : RICHMOND
                        number : 125
               postdirectional :
                predirectional :
               secondaryNumber :
                 secondaryUnit :
                         state : VA
                        street : MAIN
                    streetLine : 125 MAIN ST
                        suffix : ST
                           zip : 23221

Try again? [Y/N]

Licensing:

The licensing of this project is somewhat nuanced due to its history.

The original Perl version was written and is copyrighted by Schuyler D. Erle schuyler@geocoder.us; and is accessible at CPAN

It says that "this library is free software; you can redistribute it and/or modify it under the same terms as Perl itself, either Perl version 5.8.4 or, at your option, any later version of Perl 5 you may have available."

According to the Perl licensing page, the perl license provides a choice between GPL V1 (or at your option, a later version) or the Artistic License.

However, the C# port specifies GPLv2 specifically. As such, it may be safer to assume that this code is effectively licensed under the GPL (v2).