From 80473e58498ecd80262e7a04a431f2379561b264 Mon Sep 17 00:00:00 2001
From: Joshua Peek <josh@joshpeek.com>
Date: Sat, 18 Jun 2011 20:19:34 -0500
Subject: [PATCH] Case-sensitive lexer name lookup

---
 lib/linguist/lexer.rb | 12 ++++++------
 test/test_lexer.rb    |  2 --
 2 files changed, 6 insertions(+), 8 deletions(-)

diff --git a/lib/linguist/lexer.rb b/lib/linguist/lexer.rb
index ab7260d0..d3642081 100644
--- a/lib/linguist/lexer.rb
+++ b/lib/linguist/lexer.rb
@@ -33,7 +33,7 @@ module Linguist
 
     # Public: Look up Lexer by its proper name.
     #
-    # name - The case-insensitive String name of the Lexer
+    # name - The String name of the Lexer
     #
     # Examples
     #
@@ -42,12 +42,12 @@ module Linguist
     #
     # Returns the Lexer or nil if none was found.
     def self.find_by_name(name)
-      @name_index[name.downcase]
+      @name_index[name]
     end
 
     # Public: Look up Lexer by one of its aliases.
     #
-    # name - A case-sensitive String alias of the Lexer
+    # name - A String alias of the Lexer
     #
     # Examples
     #
@@ -75,7 +75,7 @@ module Linguist
 
     # Public: Look up Lexer by name or alias.
     #
-    # name - A case-insensitive String name or alias
+    # name - A String name or alias
     #
     #   Lexer['Ruby']
     #   => #<Lexer name="Ruby">
@@ -133,11 +133,11 @@ module Linguist
       @lexers << lexer
 
       # All Lexer names should be unique. Warn if there is a duplicate.
-      if @name_index.key?(lexer.name.downcase)
+      if @name_index.key?(lexer.name)
         warn "Duplicate lexer name: #{lexer.name}"
       end
 
-      @name_index[lexer.name.downcase] = lexer
+      @name_index[lexer.name] = lexer
 
       lexer.aliases.each do |name|
         # All Lexer aliases should be unique. Warn if there is a duplicate.
diff --git a/test/test_lexer.rb b/test/test_lexer.rb
index 897a26d0..dc10254d 100644
--- a/test/test_lexer.rb
+++ b/test/test_lexer.rb
@@ -7,8 +7,6 @@ class TestLexer < Test::Unit::TestCase
 
   def test_find_by_name
     assert_equal Lexer['Ruby'], Lexer.find_by_name('Ruby')
-    assert_equal Lexer['Ruby'], Lexer.find_by_name('ruby')
-    assert_equal Lexer['Ruby'], Lexer.find_by_name('RUBY')
   end
 
   def test_find_all_by_name