From cbc720e3e79c0842b534ebc4f0070eac875b7a8a Mon Sep 17 00:00:00 2001
From: Chris Chambers <C.Chambers@Fugro.com.au>
Date: Wed, 15 Feb 2012 11:01:24 +0800
Subject: Modify UseCorrectPrefixRule for to allow classes to begin with Is
 etc.

This allows classes to begin with I<lower><upper> rather than just
I<upper><upper> or I<lower><lower>. This allows for classnames like
InMemoryDoohicky
---
 gendarme/rules/Gendarme.Rules.Naming/Test/UseCorrectPrefixTest.cs | 5 +++++
 gendarme/rules/Gendarme.Rules.Naming/UseCorrectPrefixRule.cs      | 6 +++---
 2 files changed, 8 insertions(+), 3 deletions(-)

diff --git a/gendarme/rules/Gendarme.Rules.Naming/Test/UseCorrectPrefixTest.cs b/gendarme/rules/Gendarme.Rules.Naming/Test/UseCorrectPrefixTest.cs
index 7ac68802..70003407 100644
--- a/gendarme/rules/Gendarme.Rules.Naming/Test/UseCorrectPrefixTest.cs
+++ b/gendarme/rules/Gendarme.Rules.Naming/Test/UseCorrectPrefixTest.cs
@@ -54,6 +54,10 @@ namespace Test.Rules.Naming {
 	public class ILRange {
 	}
 
+	public class InMemoryDoohicky
+	{
+	}
+
 	public interface I {
 	}
 
@@ -102,6 +106,7 @@ namespace Test.Rules.Naming {
 			AssertRuleFailure<CIncorrectClass> (1);
 			AssertRuleFailure<INcorrectClass> (1);
 			AssertRuleSuccess<ILRange> ();
+			AssertRuleSuccess<InMemoryDoohicky> ();
 		}
 
 		[Test]
diff --git a/gendarme/rules/Gendarme.Rules.Naming/UseCorrectPrefixRule.cs b/gendarme/rules/Gendarme.Rules.Naming/UseCorrectPrefixRule.cs
index 83ce5ac4..03ff58cd 100644
--- a/gendarme/rules/Gendarme.Rules.Naming/UseCorrectPrefixRule.cs
+++ b/gendarme/rules/Gendarme.Rules.Naming/UseCorrectPrefixRule.cs
@@ -90,9 +90,9 @@ namespace Gendarme.Rules.Naming {
 				return true;
 
 			switch (name [0]) {
-			case 'C':	// MFC like CMyClass - but works for CLSCompliant
-			case 'I':	// interface-like
-				return Char.IsLower (name [1]) == Char.IsLower (name [2]);
+			case 'C':	// MFC like CMyClass should fail - but works for CLSCompliant
+			case 'I':	// interface-like - Classes beginning with In or Is etc should pass, e.g. InMemoryDoohicky
+				return Char.IsLower (name [1]) ? true : Char.IsUpper (name [2]);
 			default:
 				return true;
 			}
-- 
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