Package DataStandardizer.UNM49 has been replaced by package DataStandardizer.Geography. Future fixes and enhancements will be incorporated into DataStandardizer.Geography only. All users of DataStandardizer.UNM49 are encouraged to migrate to DataStandardizer.Geography at their earliest convenience.
Data Standardizer provides implementations of various internationally recognised standards in data processing, covering topics ranging from languages to currencies and geographical entities. With strongly-typed enumerations for each standard (where applicable) or other targeted data types, you can represent these elements in your code such that errors with invalid values are minimised.
Supports use of UN M49 or the "Standard Country or Area Codes for Statistical Use (Series M, No. 49)".
Data Standardizer provides implementations of various internationally recognised standards in data processing, covering topics ranging from languages to currencies and geographical entities. With strongly-typed enumerations for each standard (where applicable) or other targeted data types, you can represent these elements in your code such that errors with invalid values are minimised.
Supported target platforms include (modern) .Net and .Net Standard. Data Standardizer can be used in modern application software, but is also available as an option for older codebases that are being upgraded more gradually or may remain on older frameworks indefinitely.
Getting Started
Installation
Data Standardizer is available as a series of packages from NuGet.org that can be linked to your existing projects. Available packages include:
Package
Description
DataStandardizer.Core
Common types used to implement standards in the other packages. You should not need to link to this package directly.
DataStandardizer.BCP47
Supports IETF BCP 47 language tags.
DataStandardizer.ISO15924
Supports ISO 15924, Codes for the representation of names of scripts.
DataStandardizer.ISO3166
Supports ISO 3166, Codes for the representation of names of countries and their subdivisions parts 1 & 2.
DataStandardizer.ISO4217
Supports ISO 4217, Codes for the representation of currencies and funds.
DataStandardizer.ISO639
Supports ISO 639, Codes for the representation of names of languages parts 1, 2, 3 & 5.
DataStandardizer.UNM49
Supports UN M49 or the Standard Country or Area Codes for Statistical Use (Series M, No. 49).
To use a particular standard in your application, find the corresponding package from the above list and add it as a dependency to your project. Instructions for doing so will depend on what development tooling you are using.
Depending on which .Net platform you are targeting, the above packages will also depend on various other system- and third-party packages. They will be included as static dependencies where required and should be automatically resolved, but if you are using a proxy for your package server you may need to make sure these other packages are also available.
The repository includes a number of PowerShell scripts with names starting with Generate. These scripts are used to re-generate the enums that comprise the implementations of each corresponding standard and require the use of a PowerShell shell prompt to execute as well as access to the official flat-file data sources provided by the relevant standards body or designated maintainer. Some scripts may also require a minimum version of PowerShell to run.
Other scripts and YAML files are included to support the infrastructure (IaC) used by the Data Standardizer project for functions such as pipelines, package hosting, etc. These files are not intended to be used by the end-user.
Latest releases
Package
Release version
Release status
Build status (preview)
Test status (preview)
DataStandardizer.Core
DataStandardizer.BCP47
DataStandardizer.ISO15924
DataStandardizer.ISO3166
DataStandardizer.ISO4217
DataStandardizer.ISO639
DataStandardizer.UNM49
The most recently produced release version (shown above) does not necessarily correspond with the latest package version published to NuGet or any other publically available source.
Build and Test
Branching strategy
The Data Standardizer repository makes use of two "main" branches. They are:
Name
Description
master
Top-level branch from which all package release builds are produced. The develop branch will be merged into this branch when a new release is done.
develop
Default branch and the branch from which preview package builds are produced. Changes are marshalled on this branch before being included in a release build.
Other branches that may be created from time-to-time are not relevant to non-contributors.
Build source code
To compile the source code, first you will need to clone the repository to your local machine. You can find instructions for doing so here.
With the source code, you can then open a command prompt, change the current directory to the repository root folder, and use the following command to compile the entire solution:
dotnet build DataStandardizer.sln
You can also work with the source code in IDEs such as Visual Studio or Visual Studio Code. In these cases, open the DataStandardizer.sln solution file to access the source code.
There are also solution filter files (*.slnf) for each of the projects (packages) in the repository root folder alongside the main solution file. These files narrow the scope of projects included to only those needed to build and test a single package. You can also build these solution filters if so desired, and even open them in your IDE if you only want to work with the code for one package. They are included mainly because they are used by the CI pipelines to enable the building and testing of each package individually.
Running tests
The included tests are based on the XUnit test framework. To run the tests, you will need a test runner able to work with XUnit. The test projects do include a default test runner dependency, which enables you to run the tests from the command line. With a command prompt open (as described above), you can run all tests in the solution:
dotnet test DataStandardizer.sln
Visual Studio includes the Test Explorer that enables you to discover available tests and execute those tests by various categorizations. Find out more about Test Explorerhere. Testing is also supported in Visual Studio Code with use of the C# Dev Kit (learn more here).
Usage
Though each package contains many types, typically there will be only a few that you will end up using directly in your application. Listed here are the main types you are most likely to include in your source code.
DataStandardizer.BCP47
Type
Description
Bcp47LanguageTag
Represents an IETF language tag. May be created by using the provided static factory methods or by using the language tag builder.
Bcp47LanguageTagBuilder
Can be used to construct a language tag using a fluent-style syntax.
SubtagRegistry
Represents a copy of the IANA Subtag Registry. May be loaded by various means, but the source must be in the original "record-jar" format as described in RFC 5646. Used to create language tags based on the subtag registry (which defines most valid tags and subtags) as opposed to creating a language tag based just on the rules defined by RFC 5646.
SubtagRegistryFileDateRecord
Represents a "File-Date" record from the subtag registry.
SubtagRegistrySubtagRecord
Represents a "Subtag" record from the subtag registry.
SubtagRegistryTagRecord
Represents a "Tag" record from the subtag registry.
DataStandardizer.ISO15924
Type
Description
Iso15924
An enum containing script codes from ISO 15924. Includes both the four-letter alpha codes and three-digit numeric codes from the standard as the name and value of the members, respectively.
DataStandardizer.ISO3166
Type
Description
Iso3166Part1Alpha2
An enum containing the country codes from ISO 3166-1 Alpha-2. Includes both the two-letter alpha codes and numeric codes from the standard as the name and value of the members, respectively.
Iso3166Part1Alpha3
An enum containing the country codes from ISO 3166-1 Alpha-3. Includes both the three-letter alpha codes and numeric codes from the standard as the name and value of the members, respectively.
Iso3166Part2
An enum containing the subdivision codes from ISO 3166-2. Given the hierarchical nature of these codes, this implementation uses a nested structure to access the codes so that each group of subdivision codes is grouped under a nested type named after the country code of the country the subdivision codes belong to.
DataStandardizer.ISO4217
Type
Description
Iso4217Current
An enum containing active currency codes from ISO 4217. Includes both the three-letter alpha codes and numeric codes from the standard as the name and value of each member, respectively.
Iso4217Historic
An enum containing retired currency codes from ISO 4217. Includes both the three-letter alpha codes and numeric codes from the standard as the name and value of each member, respectively.
DataStandardizer.ISO639
Type
Description
Iso639Part1
An enum containing the alpha-2 language codes from ISO 639-1.
Iso639Part2B
An enum containing the bibliographic alpha-3 language codes from ISO 639-2.
Iso639Part2T
An enum containing the terminological alpha-3 language codes from ISO 639-2.
Iso639Part3
An enum containing the alpha-3 language codes from ISO 639-3.
Iso639Part5
An enum containing the alpha-3 language family codes from ISO 639-5.
DataStandardizer.UNM49
Type
Description
UnM49ByAlpha2Code
An enum containing the numeric M49 codes from standard UN M49. Because of technical requirements on the naming of members, each code is keyed on its corresponding ISO 3166-1 alpha-2 code.
UnM49ByAlpha3Code
An enum containing the numeric M49 codes from standard UN M49. Because of technical requirements on the naming of members, each code is keyed on its corresponding ISO 3166-1 alpha-3 code.
N.B. Because of the way the source data is arranged, the above enums only directly include members representing M.49 codes that have a corresponding alpha-2 or alpha-3 code from ISO 3166-1. There are additional M.49 codes representing supra-national regions or other areas that are included as metadata on these enum members, and can be retrieved using provided extension methods.