== Why is this an issue?

Sharing some naming conventions is a key point to make it possible for a team to efficiently collaborate.

This rule allows to check that all interface names match a provided regular expression.


The default configuration is the one recommended by Microsoft:


* Must start with an upper case 'I' character, e.g. IFoo
* Followed by Pascal casing, starting with an upper case character, e.g. IEnumerable
* Short abbreviations of 2 letters can be capitalized, e.g. IFooID
* Longer abbreviations need to be lower cased, e.g. IFooHtml

=== Noncompliant code example

With the default regular expression ``++^I([A-Z]{1,3}[a-z0-9]+)*([A-Z]{2})?$++``:

[source,vbnet]
----
Interface Foo  ' Noncompliant
End Interface
----

=== Compliant solution

[source,vbnet]
----
Interface IFoo ' Compliant
End Interface
----

ifdef::env-github,rspecator-view[]

'''
== Implementation Specification
(visible only on this page)

include::../message.adoc[]

=== Parameters

.format
****
_STRING_

----
^I([A-Z]{1,3}[a-z0-9]+)*([A-Z]{2})?$
----

Regular expression used to check the interface names against.
****


'''
== Comments And Links
(visible only on this page)

include::../comments-and-links.adoc[]
endif::env-github,rspecator-view[]
