From e078249231d972c5e8fa8bd9b2e54d9f0a191000 Mon Sep 17 00:00:00 2001
From: Leon <leopard10000@gmail.com>
Date: Mon, 27 Nov 2017 22:41:39 +0900
Subject: [PATCH 1/9] =?UTF-8?q?=E6=9C=AC=E4=BD=93=E3=81=AE=E3=83=AA?=
 =?UTF-8?q?=E3=83=95=E3=82=A1=E3=82=AF=E3=82=BF=E3=83=AA=E3=83=B3=E3=82=B0?=
MIME-Version: 1.0
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* Array.transpose を使う
* array という変数名は Array（クラス名）と紛らわしいので変更
* より意味が伝わりやすいよう、split(¥n) から each_line に変更
---
 lib/transport.rb | 8 ++------
 1 file changed, 2 insertions(+), 6 deletions(-)

diff --git a/lib/transport.rb b/lib/transport.rb
index d930638..b870c37 100644
--- a/lib/transport.rb
+++ b/lib/transport.rb
@@ -1,11 +1,7 @@
 def transport(source)
-  array = source.split("\n").map {|s| s.split(" ")}
-  rows_count = array.first.count
+  org_array = source.each_line.map {|s| s.split(" ")}
 
-  transported_array = []
-  0.upto(rows_count - 1) do |i|
-    transported_array << array.map {|a| a[i]}
-  end
+  transported_array = org_array.transpose
 
   transported_array.map {|s| s.join(" ")}.join("\n")
 end
\ No newline at end of file

From 8afdc8ac25deea89ab1a015eaaff826aed6d32d6 Mon Sep 17 00:00:00 2001
From: Leon <leopard10000@gmail.com>
Date: Mon, 27 Nov 2017 22:43:49 +0900
Subject: [PATCH 2/9] =?UTF-8?q?=E3=83=86=E3=82=B9=E3=83=88=E3=82=B3?=
 =?UTF-8?q?=E3=83=BC=E3=83=89=E3=81=AE=E3=83=AA=E3=83=95=E3=82=A1=E3=82=AF?=
 =?UTF-8?q?=E3=82=BF=E3=83=AA=E3=83=B3=E3=82=B0?=
MIME-Version: 1.0
Content-Type: text/plain; charset=UTF-8
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* input/output行列の形・内容がひと目で分かるようヒアドキュメントを使う
---
 test/transport_test.rb | 27 +++++++++++++++++++++------
 1 file changed, 21 insertions(+), 6 deletions(-)

diff --git a/test/transport_test.rb b/test/transport_test.rb
index 64126c8..ccdbe7f 100644
--- a/test/transport_test.rb
+++ b/test/transport_test.rb
@@ -3,12 +3,27 @@
 
 class TransportTest < MiniTest::Test
   def test_transport
-    input = "1 2 3\n4 5 6\n7 8 9"
-    output = "1 4 7\n2 5 8\n3 6 9"
-    assert_equal output, transport(input)
+    input = <<~EOS.chomp
+      1 2 3
+      4 5 6
+      7 8 9
+    EOS
+    assert_equal <<~EOS.chomp, transport(input)
+      1 4 7
+      2 5 8
+      3 6 9
+    EOS
 
-    input = "1 2 3\n4 5 6\n7 8 9\n10 11 12"
-    output = "1 4 7 10\n2 5 8 11\n3 6 9 12"
-    assert_equal output, transport(input)
+    input = <<~EOS.chomp
+      1 2 3
+      4 5 6
+      7 8 9
+      10 11 12
+    EOS
+    assert_equal <<~EOS.chomp, transport(input)
+      1 4 7 10
+      2 5 8 11
+      3 6 9 12
+    EOS
   end
 end
\ No newline at end of file

From 384c5d8aa57bb33be7e53eb2ee58e5d49103f549 Mon Sep 17 00:00:00 2001
From: Leon <leopard10000@gmail.com>
Date: Tue, 5 Dec 2017 17:59:59 +0900
Subject: [PATCH 3/9] =?UTF-8?q?=E6=9C=AC=E4=BD=93=E3=81=AE=E3=83=AA?=
 =?UTF-8?q?=E3=83=95=E3=82=A1=E3=82=AF=E3=82=BF=E3=83=AA=E3=83=B3=E3=82=B0?=
MIME-Version: 1.0
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Content-Transfer-Encoding: 8bit

* メソッドチェーン化
---
 lib/transport.rb | 11 ++++++-----
 1 file changed, 6 insertions(+), 5 deletions(-)

diff --git a/lib/transport.rb b/lib/transport.rb
index b870c37..98a58f3 100644
--- a/lib/transport.rb
+++ b/lib/transport.rb
@@ -1,7 +1,8 @@
 def transport(source)
-  org_array = source.each_line.map {|s| s.split(" ")}
-
-  transported_array = org_array.transpose
-
-  transported_array.map {|s| s.join(" ")}.join("\n")
+  source
+      .each_line
+      .map {|s| s.split(" ")}
+      .transpose
+      .map {|s| s.join(" ")}
+      .join("\n")
 end
\ No newline at end of file

From 98e82faee79cd7099e3ee82f706a636cee8a63a3 Mon Sep 17 00:00:00 2001
From: Leon <leopard10000@gmail.com>
Date: Tue, 5 Dec 2017 20:45:37 +0900
Subject: [PATCH 4/9] =?UTF-8?q?[=E3=83=86=E3=82=B9=E3=83=88=E3=82=B3?=
 =?UTF-8?q?=E3=83=BC=E3=83=89]=20=E3=83=92=E3=82=A2=E3=83=89=E3=82=AD?=
 =?UTF-8?q?=E3=83=A5=E3=83=A1=E3=83=B3=E3=83=88=E3=81=8C=E4=B9=B1=E7=94=A8?=
 =?UTF-8?q?=E6=B0=97=E5=91=B3=E3=81=AA=E3=81=AE=E3=81=A7=E3=82=82=E3=81=86?=
 =?UTF-8?q?=E3=81=A1=E3=82=87=E3=81=84=E6=84=8F=E5=9B=B3=E3=81=8C=E4=BC=9D?=
 =?UTF-8?q?=E3=82=8F=E3=82=8A=E3=82=84=E3=81=99=E3=81=84=E3=82=88=E3=81=86?=
 =?UTF-8?q?=E3=81=AB=E8=A8=98=E8=BF=B0=E3=81=99=E3=82=8B=E3=80=82?=
MIME-Version: 1.0
Content-Type: text/plain; charset=UTF-8
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---
 test/transport_test.rb | 8 ++++++--
 1 file changed, 6 insertions(+), 2 deletions(-)

diff --git a/test/transport_test.rb b/test/transport_test.rb
index ccdbe7f..3c9f24b 100644
--- a/test/transport_test.rb
+++ b/test/transport_test.rb
@@ -8,11 +8,12 @@ def test_transport
       4 5 6
       7 8 9
     EOS
-    assert_equal <<~EOS.chomp, transport(input)
+    expect = <<~EOS.chomp
       1 4 7
       2 5 8
       3 6 9
     EOS
+    assert_equal expect, transport(input)
 
     input = <<~EOS.chomp
       1 2 3
@@ -20,10 +21,13 @@ def test_transport
       7 8 9
       10 11 12
     EOS
-    assert_equal <<~EOS.chomp, transport(input)
+    expect = <<~EOS.chomp
       1 4 7 10
       2 5 8 11
       3 6 9 12
     EOS
+    assert_equal expect, transport(input)
+
+    # assert_equal "1 4\n2 5\n3 6", transport("1 2\r\n3 4\r5 6")
   end
 end
\ No newline at end of file

From b2c6d86cb396ad7571fa3c92b31e927fd4650b64 Mon Sep 17 00:00:00 2001
From: Leon <leopard10000@gmail.com>
Date: Tue, 5 Dec 2017 20:48:19 +0900
Subject: [PATCH 5/9] =?UTF-8?q?&:=20=E3=82=92=E4=BD=BF=E3=81=86?=
MIME-Version: 1.0
Content-Type: text/plain; charset=UTF-8
Content-Transfer-Encoding: 8bit

---
 lib/transport.rb | 7 +++++--
 1 file changed, 5 insertions(+), 2 deletions(-)

diff --git a/lib/transport.rb b/lib/transport.rb
index 98a58f3..55f91bb 100644
--- a/lib/transport.rb
+++ b/lib/transport.rb
@@ -1,8 +1,11 @@
+# 文字列で表現された行列を転置して、文字列形式で返す
+#   入力例: "1 2 3\n4 5 6\n7 8 9\n10 11 12"
+#   出力例: "1 4 7 10\n2 5 8 11\n3 6 9 12"
 def transport(source)
   source
       .each_line
-      .map {|s| s.split(" ")}
+      .map(&:split)
       .transpose
-      .map {|s| s.join(" ")}
+      .map {|ary| ary.join(" ")}
       .join("\n")
 end
\ No newline at end of file

From 3aa49836cb5a06e9a62bb7d7173e48ae52ebf815 Mon Sep 17 00:00:00 2001
From: Leon <leopard10000@gmail.com>
Date: Tue, 5 Dec 2017 20:50:30 +0900
Subject: [PATCH 6/9] =?UTF-8?q?split=E5=91=A8=E3=82=8A=E3=80=81=E3=81=A1?=
 =?UTF-8?q?=E3=82=87=E3=81=A3=E3=81=A8=E3=82=84=E3=82=8A=E9=81=8E=E3=81=8E?=
 =?UTF-8?q?=E3=81=9F=E6=84=9F=E3=81=8C=E3=81=82=E3=82=8B=E3=81=AE=E3=81=A7?=
 =?UTF-8?q?=E5=85=83=E3=81=AB=E6=88=BB=E3=81=99?=
MIME-Version: 1.0
Content-Type: text/plain; charset=UTF-8
Content-Transfer-Encoding: 8bit

---
 lib/transport.rb       | 10 +++++-----
 test/transport_test.rb |  2 --
 2 files changed, 5 insertions(+), 7 deletions(-)

diff --git a/lib/transport.rb b/lib/transport.rb
index 55f91bb..8af138e 100644
--- a/lib/transport.rb
+++ b/lib/transport.rb
@@ -1,11 +1,11 @@
 # 文字列で表現された行列を転置して、文字列形式で返す
-#   入力例: "1 2 3\n4 5 6\n7 8 9\n10 11 12"
-#   出力例: "1 4 7 10\n2 5 8 11\n3 6 9 12"
+# ex) 入力: "1 2 3\n4 5 6\n7 8 9\n10 11 12"
+#     出力: "1 4 7 10\n2 5 8 11\n3 6 9 12"
 def transport(source)
   source
-      .each_line
-      .map(&:split)
+      .split("\n")
+      .map {|s| s.split(" ")}
       .transpose
-      .map {|ary| ary.join(" ")}
+      .map {|a| a.join(" ")}
       .join("\n")
 end
\ No newline at end of file
diff --git a/test/transport_test.rb b/test/transport_test.rb
index 3c9f24b..22af2ce 100644
--- a/test/transport_test.rb
+++ b/test/transport_test.rb
@@ -27,7 +27,5 @@ def test_transport
       3 6 9 12
     EOS
     assert_equal expect, transport(input)
-
-    # assert_equal "1 4\n2 5\n3 6", transport("1 2\r\n3 4\r5 6")
   end
 end
\ No newline at end of file

From 6eef2f1cf50b2019979257b0685ae3946ba7723d Mon Sep 17 00:00:00 2001
From: Leon <leopard10000@gmail.com>
Date: Tue, 5 Dec 2017 21:33:04 +0900
Subject: [PATCH 7/9] =?UTF-8?q?[=E3=83=86=E3=82=B9=E3=83=88=E3=82=B3?=
 =?UTF-8?q?=E3=83=BC=E3=83=89]=20=E3=83=92=E3=82=A2=E3=83=89=E3=82=AD?=
 =?UTF-8?q?=E3=83=A5=E3=83=A1=E3=83=B3=E3=83=88=E3=81=A7=E4=BD=9C=E3=81=A3?=
 =?UTF-8?q?=E3=81=9F=E6=96=87=E5=AD=97=E5=88=97=E3=81=A8=E6=99=AE=E9=80=9A?=
 =?UTF-8?q?=E3=81=AE=E6=96=87=E5=AD=97=E5=88=97=E3=81=8C=E7=AD=89=E3=81=97?=
 =?UTF-8?q?=E3=81=84=E3=81=93=E3=81=A8=E3=82=92=E7=A2=BA=E8=AA=8D?=
MIME-Version: 1.0
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Content-Transfer-Encoding: 8bit

---
 test/transport_test.rb | 10 ++++++++++
 1 file changed, 10 insertions(+)

diff --git a/test/transport_test.rb b/test/transport_test.rb
index 22af2ce..57261f4 100644
--- a/test/transport_test.rb
+++ b/test/transport_test.rb
@@ -28,4 +28,14 @@ def test_transport
     EOS
     assert_equal expect, transport(input)
   end
+
+  def test_compare_heredoc_to_string
+    literal = "1 2 3\n4 5 6\n7 8 9"
+    heredoc = <<~EOS.chomp
+      1 2 3
+      4 5 6
+      7 8 9
+    EOS
+    assert_equal heredoc, literal
+  end
 end
\ No newline at end of file

From 6b52f7d48be5f68defd0f64946f14b6cee910d11 Mon Sep 17 00:00:00 2001
From: Leon <leopard10000@gmail.com>
Date: Tue, 5 Dec 2017 22:00:32 +0900
Subject: [PATCH 8/9] =?UTF-8?q?Revert=20"[=E3=83=86=E3=82=B9=E3=83=88?=
 =?UTF-8?q?=E3=82=B3=E3=83=BC=E3=83=89]=20=E3=83=92=E3=82=A2=E3=83=89?=
 =?UTF-8?q?=E3=82=AD=E3=83=A5=E3=83=A1=E3=83=B3=E3=83=88=E3=81=A7=E4=BD=9C?=
 =?UTF-8?q?=E3=81=A3=E3=81=9F=E6=96=87=E5=AD=97=E5=88=97=E3=81=A8=E6=99=AE?=
 =?UTF-8?q?=E9=80=9A=E3=81=AE=E6=96=87=E5=AD=97=E5=88=97=E3=81=8C=E7=AD=89?=
 =?UTF-8?q?=E3=81=97=E3=81=84=E3=81=93=E3=81=A8=E3=82=92=E7=A2=BA=E8=AA=8D?=
 =?UTF-8?q?"?=
MIME-Version: 1.0
Content-Type: text/plain; charset=UTF-8
Content-Transfer-Encoding: 8bit

This reverts commit 6eef2f1cf50b2019979257b0685ae3946ba7723d.
---
 test/transport_test.rb | 11 -----------
 1 file changed, 11 deletions(-)

diff --git a/test/transport_test.rb b/test/transport_test.rb
index 57261f4..e0183cb 100644
--- a/test/transport_test.rb
+++ b/test/transport_test.rb
@@ -26,16 +26,5 @@ def test_transport
       2 5 8 11
       3 6 9 12
     EOS
-    assert_equal expect, transport(input)
-  end
-
-  def test_compare_heredoc_to_string
-    literal = "1 2 3\n4 5 6\n7 8 9"
-    heredoc = <<~EOS.chomp
-      1 2 3
-      4 5 6
-      7 8 9
-    EOS
-    assert_equal heredoc, literal
   end
 end
\ No newline at end of file

From f084df890af21640f97c80f6dfe57997ff11a352 Mon Sep 17 00:00:00 2001
From: Leon <leopard10000@gmail.com>
Date: Thu, 7 Dec 2017 21:11:36 +0900
Subject: [PATCH 9/9] =?UTF-8?q?[=E3=83=86=E3=82=B9=E3=83=88=E3=82=B3?=
 =?UTF-8?q?=E3=83=BC=E3=83=89]=20=E5=89=8D=E5=9B=9E=E3=81=AECommit?=
 =?UTF-8?q?=E3=81=A7assert=E3=82=92=E5=89=8A=E9=99=A4=E3=81=97=E3=81=A6?=
 =?UTF-8?q?=E3=81=97=E3=81=BE=E3=81=A3=E3=81=A6=E3=81=84=E3=81=9F=E3=81=AE?=
 =?UTF-8?q?=E3=81=A7=E3=80=81=E3=81=9D=E3=81=A3=E3=81=A8=E4=BF=AE=E6=AD=A3?=
MIME-Version: 1.0
Content-Type: text/plain; charset=UTF-8
Content-Transfer-Encoding: 8bit

---
 test/transport_test.rb | 1 +
 1 file changed, 1 insertion(+)

diff --git a/test/transport_test.rb b/test/transport_test.rb
index e0183cb..22af2ce 100644
--- a/test/transport_test.rb
+++ b/test/transport_test.rb
@@ -26,5 +26,6 @@ def test_transport
       2 5 8 11
       3 6 9 12
     EOS
+    assert_equal expect, transport(input)
   end
 end
\ No newline at end of file