Separate lexer and lexer_name

lib/linguist/blob_helper.rb

@@ -81,6 +81,10 @@ module Linguist
       end
     end
 
+    def lexer_name
+      language.lexer_name
+    end
+
     def lexer
       language.lexer
     end

lib/linguist/language.rb

@@ -1,3 +1,5 @@
+require 'linguist/lexer'
+
 require 'yaml'
 
 module Linguist
@@ -12,10 +14,10 @@ module Linguist
       @name_index[language.name.downcase] = language
 
       if attributes[:default_lexer] || language.default_lexer?
-        @lexer_index[language.lexer.downcase] = language
+        @lexer_index[language.lexer_name.downcase] = language
       end
 
-      @lexer_index[language.lexer.downcase] ||= language
+      @lexer_index[language.lexer_name.downcase] ||= language
 
       language.extensions.each do |extension|
         @extension_index[extension] = language
@@ -51,19 +53,20 @@ module Linguist
 
     def initialize(attributes = {})
       @name       = attributes[:name] || raise(ArgumentError, "missing name")
-      @lexer      = attributes[:lexer] || default_lexer
+      @lexer_name = attributes[:lexer_name] || default_lexer_name
+      @lexer      = Lexer.find_by_alias(@lexer_name)
       @extensions = attributes[:extensions] || []
       @popular    = attributes[:popular] || false
     end
 
-    attr_reader :name, :lexer, :extensions
+    attr_reader :name, :lexer_name, :lexer, :extensions
 
-    def default_lexer
+    def default_lexer_name
       name.downcase.gsub(/\s/, '-')
     end
 
     def default_lexer?
-      lexer == default_lexer
+      lexer_name == default_lexer_name
     end
 
     def popular?
@@ -88,7 +91,7 @@ module Linguist
   YAML.load_file(File.expand_path("../extensions.yml", __FILE__)).each do |name, options|
     Language.create(
       :name => name,
-      :lexer => options[:lexer],
+      :lexer_name => options[:lexer],
       :default_lexer => options[:default_lexer],
       :extensions => options[:ext],
       :popular => popular.include?(name)

lib/linguist/lexer.rb

@@ -10,7 +10,7 @@ module Linguist
     end
 
     def self.find_by_alias(name)
-      @alias_index[name.downcase]
+      @alias_index[name]
     end
 
     def self.[](name)
@@ -32,7 +32,7 @@ module Linguist
     YAML.load_file(File.expand_path("../lexers.yml", __FILE__)).each do |lexer|
       @name_index[lexer.name.downcase] = lexer
       lexer.aliases.each do |name|
-        @alias_index[name.downcase] = lexer
+        @alias_index[name] = lexer
       end
     end
   end

lib/linguist/pathname.rb

@@ -25,6 +25,10 @@ module Linguist
       Language.find_by_extension(extname) || Language['Text']
     end
 
+    def lexer_name
+      language.lexer_name
+    end
+
     def lexer
       language.lexer
     end

test/test_blob.rb

@@ -116,16 +116,25 @@ class TestBlob < Test::Unit::TestCase
     assert_equal Language['Text'], blob("octocat.png").language
   end
 
-  def test_lexer
-    assert_equal 'ruby', blob("grit.rb").lexer
-    assert_equal 'text', blob("README").lexer
-    assert_equal 'diff', blob("dude-thing-okay--001.patch").lexer
-    assert_equal 'scheme', blob("dude.el").lexer
-    assert_equal 'javascript', blob("dude.js").lexer
-    assert_equal 'ruby', blob("Capfile").lexer
+  def test_lexer_name
+    assert_equal 'ruby', blob("grit.rb").lexer_name
+    assert_equal 'text', blob("README").lexer_name
+    assert_equal 'diff', blob("dude-thing-okay--001.patch").lexer_name
+    assert_equal 'scheme', blob("dude.el").lexer_name
+    assert_equal 'javascript', blob("dude.js").lexer_name
+    assert_equal 'ruby', blob("Capfile").lexer_name
 
-    assert_equal 'ruby', blob("Rakefile").lexer
-    assert_equal 'ruby', blob("subdir/Rakefile").lexer
+    assert_equal 'ruby', blob("Rakefile").lexer_name
+    assert_equal 'ruby', blob("subdir/Rakefile").lexer_name
+  end
+
+  def test_lexer
+    assert_equal Lexer['Ruby'], blob("grit.rb").lexer
+    assert_equal Lexer['Text only'], blob("README").lexer
+    assert_equal Lexer['Diff'], blob("dude-thing-okay--001.patch").lexer
+    assert_equal Lexer['Scheme'], blob("dude.el").lexer
+    assert_equal Lexer['JavaScript'], blob("dude.js").lexer
+    assert_equal Lexer['Ruby'], blob("Capfile").lexer
   end
 
   def test_shebang_script

test/test_language.rb

@@ -58,13 +58,22 @@ class TestLanguage < Test::Unit::TestCase
     end
   end
 
+  def test_lexer_name
+    assert_equal 'perl',   Language['Perl'].lexer_name
+    assert_equal 'python', Language['Python'].lexer_name
+    assert_equal 'ruby',   Language['Ruby'].lexer_name
+    assert_equal 'cpp',    Language['C++'].lexer_name
+    assert_equal 'bash',   Language['Gentoo Ebuild'].lexer_name
+    assert_equal 'scheme', Language['Nu'].lexer_name
+  end
+
   def test_lexer
-    assert_equal 'perl',   Language['Perl'].lexer
-    assert_equal 'python', Language['Python'].lexer
-    assert_equal 'ruby',   Language['Ruby'].lexer
-    assert_equal 'cpp',    Language['C++'].lexer
-    assert_equal 'bash',   Language['Gentoo Ebuild'].lexer
-    assert_equal 'scheme', Language['Nu'].lexer
+    assert_equal Lexer['Perl'],   Language['Perl'].lexer
+    assert_equal Lexer['Python'], Language['Python'].lexer
+    assert_equal Lexer['Ruby'],   Language['Ruby'].lexer
+    assert_equal Lexer['C++'],    Language['C++'].lexer
+    assert_equal Lexer['Bash'],   Language['Gentoo Ebuild'].lexer
+    assert_equal Lexer['Scheme'], Language['Nu'].lexer
   end
 
   def test_extensions

test/test_pathname.rb

@@ -42,13 +42,22 @@ class TestPathname < Test::Unit::TestCase
     assert_equal Language['Text'], Pathname.new("defun.kt").language
   end
 
+  def test_lexer_name
+    assert_equal 'ruby',   Pathname.new("file.rb").lexer_name
+    assert_equal 'ruby',   Pathname.new("Rakefile").lexer_name
+    assert_equal 'bash',   Pathname.new("file.ebuild").lexer_name
+    assert_equal 'python', Pathname.new("itty.py").lexer_name
+    assert_equal 'scheme', Pathname.new("itty.nu").lexer_name
+    assert_equal 'text',   Pathname.new("defun.kt").lexer_name
+  end
+
   def test_lexer
-    assert_equal 'ruby',   Pathname.new("file.rb").lexer
-    assert_equal 'ruby',   Pathname.new("Rakefile").lexer
-    assert_equal 'bash',   Pathname.new("file.ebuild").lexer
-    assert_equal 'python', Pathname.new("itty.py").lexer
-    assert_equal 'scheme', Pathname.new("itty.nu").lexer
-    assert_equal 'text',   Pathname.new("defun.kt").lexer
+    assert_equal Lexer['Ruby'],      Pathname.new("file.rb").lexer
+    assert_equal Lexer['Ruby'],      Pathname.new("Rakefile").lexer
+    assert_equal Lexer['Bash'],      Pathname.new("file.ebuild").lexer
+    assert_equal Lexer['Python'],    Pathname.new("itty.py").lexer
+    assert_equal Lexer['Scheme'],    Pathname.new("itty.nu").lexer
+    assert_equal Lexer['Text Only'], Pathname.new("defun.kt").lexer
   end
 
   def test_mime_type