From a75a57eb5e5fbe87e8443e09d6aaaa03a8cfd976 Mon Sep 17 00:00:00 2001
From: Joshua Peek <josh@joshpeek.com>
Date: Sat, 18 Jun 2011 20:29:47 -0500
Subject: [PATCH] Make Language name finder case sensitive

---
 lib/linguist/language.rb | 16 ++++++++--------
 test/test_language.rb    |  4 ----
 2 files changed, 8 insertions(+), 12 deletions(-)

diff --git a/lib/linguist/language.rb b/lib/linguist/language.rb
index 68b83188..335b49b8 100644
--- a/lib/linguist/language.rb
+++ b/lib/linguist/language.rb
@@ -25,12 +25,12 @@ module Linguist
       @languages << language
 
       # All Language names should be unique. Warn if there is a duplicate.
-      if @name_index.key?(language.name.downcase)
+      if @name_index.key?(language.name)
         warn "Duplicate language name: #{language.name}"
       end
 
-      # Case-insensitive language name index
-      @name_index[language.name.downcase] = language
+      # Language name index
+      @name_index[language.name] = language
 
       language.aliases.each do |name|
         # All Language aliases should be unique. Warn if there is a duplicate.
@@ -75,7 +75,7 @@ module Linguist
 
     # Public: Look up Language by its proper name.
     #
-    # name - The case-insensitive String name of the Language
+    # name - The String name of the Language
     #
     # Examples
     #
@@ -84,12 +84,12 @@ module Linguist
     #
     # Returns the Language or nil if none was found.
     def self.find_by_name(name)
-      @name_index[name.downcase]
+      @name_index[name]
     end
 
     # Public: Look up Language by one of its aliases.
     #
-    # name - A case-sensitive String alias of the Language
+    # name - A String alias of the Language
     #
     # Examples
     #
@@ -98,7 +98,7 @@ module Linguist
     #
     # Returns the Lexer or nil if none was found.
     def self.find_by_alias(name)
-      @alias_index[name.downcase]
+      @alias_index[name]
     end
 
     # Public: Look up Language by extension.
@@ -132,7 +132,7 @@ module Linguist
 
     # Public: Look up Language by its name or lexer.
     #
-    # name - The case-insensitive String name of the Language
+    # name - The String name of the Language
     #
     # Examples
     #
diff --git a/test/test_language.rb b/test/test_language.rb
index e8db7b8d..cd016ef2 100644
--- a/test/test_language.rb
+++ b/test/test_language.rb
@@ -262,8 +262,6 @@ class TestLanguage < Test::Unit::TestCase
   def test_find_by_name
     ruby = Language['Ruby']
     assert_equal ruby, Language.find_by_name('Ruby')
-    assert_equal ruby, Language.find_by_name('ruby')
-    assert_equal ruby, Language.find_by_name('RUBY')
   end
 
   def test_find_all_by_name
@@ -316,14 +314,12 @@ class TestLanguage < Test::Unit::TestCase
   def test_find
     assert_equal 'Ruby', Language['Ruby'].name
     assert_equal 'Ruby', Language['ruby'].name
-    assert_equal 'Ruby', Language['RUBY'].name
     assert_equal 'C++', Language['C++'].name
     assert_equal 'C++', Language['c++'].name
     assert_equal 'C++', Language['cpp'].name
     assert_equal 'C#', Language['C#'].name
     assert_equal 'C#', Language['c#'].name
     assert_equal 'C#', Language['csharp'].name
-    assert_equal 'C#', Language['CSHARP'].name
     assert_equal 'Text', Language['defunkt'].name
   end