From b68732f0c7bd3c9a005230aa6bc4bc84a60fd31b Mon Sep 17 00:00:00 2001
From: Yaroslav Shirokov <slava@github.com>
Date: Thu, 4 Apr 2013 14:01:09 -0700
Subject: [PATCH] Add detection for CSV

---
 lib/linguist/blob_helper.rb | 7 +++++++
 samples/Text/cars.csv       | 3 +++
 test/test_blob.rb           | 4 ++++
 3 files changed, 14 insertions(+)
 create mode 100644 samples/Text/cars.csv

diff --git a/lib/linguist/blob_helper.rb b/lib/linguist/blob_helper.rb
index 5ca2b8b0..8e0e3262 100644
--- a/lib/linguist/blob_helper.rb
+++ b/lib/linguist/blob_helper.rb
@@ -158,6 +158,13 @@ module Linguist
       extname.downcase == '.stl'
     end
 
+    # Public: Is this blob a CSV file?
+    #
+    # Return true or false
+    def csv?
+      text? && extname.downcase == '.csv'
+    end
+
     # Public: Is the blob a PDF?
     #
     # Return true or false
diff --git a/samples/Text/cars.csv b/samples/Text/cars.csv
new file mode 100644
index 00000000..73280e55
--- /dev/null
+++ b/samples/Text/cars.csv
@@ -0,0 +1,3 @@
+Year,Make,Model,Length
+1997,Ford,E350,2.34
+2000,Mercury,Cougar,2.38
\ No newline at end of file
diff --git a/test/test_blob.rb b/test/test_blob.rb
index 836eb72f..f26fb842 100644
--- a/test/test_blob.rb
+++ b/test/test_blob.rb
@@ -137,6 +137,10 @@ class TestBlob < Test::Unit::TestCase
     assert blob("Text/cube.stl").solid?
   end
 
+  def test_csv
+    assert blob("Text/cars.csv").csv?
+  end
+
   def test_pdf
     assert blob("Binary/foo.pdf").pdf?
   end