Template:Country data SDN
To create a MediaWiki source code formatted template similar to those used on Wikipedia for "Template:Country data SDN," which is intended to provide standardized data about Sudan for use in various templates, such as infoboxes and flags, you would follow the structure below. This example assumes the creation of a template that includes basic country data for Sudan. Note that in a real MediaWiki environment, specific parameters and template calls might vary based on the setup of your wiki and the extensions installed. This example includes internal links and a stub message as requested.
```
{{ country showdata | alias = Sudan | flag alias = Flag of Sudan.svg | flag alias-1956 = Flag of Sudan (1956-1970).svg | flag alias-naval = Naval Ensign of Sudan.svg | link alias-naval = Sudanese Navy
| shortname alias = Sudan | demonym = Sudanese
| capital = Khartoum | largest city = Khartoum | language = Arabic, English | government = Federal presidential Islamic republic | area = 1,886,068 | population = Approx. 43 million | currency = Sudanese pound
This template is used to provide standardized data about Sudan for use in infoboxes and other templates that display information about countries.
This 'Sudan' related article is a stub.
```
This template is a simplified example and does not cover all possible fields and complexities of a full "Country data" template like those found on Wikipedia. Wikipedia's templates often use modules written in Lua for more complex logic and data handling, which is not represented here. This example focuses on the basic structure and inclusion of internal links, as well as a stub message tailored for a hypothetical "WikiMD" project.