Merge pull request #111 from yaslab/release-2.4.3

Release 2.4.3

.swiftlint.yml

@@ -0,0 +1,11 @@
+disabled_rules:
+  - force_cast
+  - force_try
+  - variable_name
+included:
+  - Sources
+line_length: 300
+file_length: 1500
+cyclomatic_complexity:
+  warning: 15
+  error: 20

.travis.yml

@@ -1,12 +1,8 @@
-language: objective-c
+language: swift
-osx_image: xcode7.3
+osx_image: xcode11.3
-env:
-  - LC_CTYPE=en_US.UTF-8
-git:
-  submodules: false
-before_install:
-  - git submodule update --init --recursive
 script:
-  - set -o pipefail && xcodebuild test -scheme CSV-OSX
+  - set -o pipefail && xcodebuild test -scheme CSV-macOS
+after_success:
+  - bash <(curl -s https://codecov.io/bash)
 notifications:
   email: false

CSV.swift.podspec

@@ -1,17 +1,18 @@
-Pod::Spec.new do |s|
+Pod::Spec.new do |spec|
-  s.name = 'CSV.swift'
+  spec.name         = 'CSV.swift'
-  s.version = '0.1.0'
+  spec.version      = '2.4.3'
-  s.license = 'MIT'
+  spec.license      = { :type => 'MIT' }
-  s.summary = 'CSV reading library written in Swift.'
+  spec.homepage     = 'https://github.com/yaslab/CSV.swift'
-  s.homepage = 'https://github.com/yaslab/CSV.swift'
+  spec.authors      = { 'Yasuhiro Hatta' => 'hatta.yasuhiro@gmail.com' }
-  s.authors = { 'Yasuhiro Hatta' => 'hatta.yasuhiro@gmail.com' }
+  spec.summary      = 'CSV reading and writing library written in Swift.'
-  s.source = { :git => 'https://github.com/yaslab/CSV.swift.git', :tag => s.version }
+  spec.source       = { :git => 'https://github.com/yaslab/CSV.swift.git', :tag => spec.version }
+  spec.source_files = 'Sources/CSV/*.swift'
 
-  s.osx.deployment_target = '10.9'
+  spec.ios.deployment_target     = '8.0'
-  s.ios.deployment_target = '8.0'
+  spec.tvos.deployment_target    = '9.0'
-  s.tvos.deployment_target = '9.0'
+  spec.watchos.deployment_target = '2.0'
-  s.watchos.deployment_target = '2.0'
+  spec.osx.deployment_target     = '10.9'
 
-  s.module_name = 'CSV'
+  spec.module_name   = 'CSV'
-  s.source_files = 'Sources/*.swift'
+  spec.swift_version = '5.0'
 end

CSV.xcodeproj/project.pbxproj

@@ -7,31 +7,72 @@
 	objects = {
 
 /* Begin PBXBuildFile section */
+		0E54021B1ED9DDF40019C3ED /* CSVWriterTests.swift in Sources */ = {isa = PBXBuildFile; fileRef = 0E54021A1ED9DDF40019C3ED /* CSVWriterTests.swift */; };
+		0E54021C1ED9DDF40019C3ED /* CSVWriterTests.swift in Sources */ = {isa = PBXBuildFile; fileRef = 0E54021A1ED9DDF40019C3ED /* CSVWriterTests.swift */; };
+		0E54021D1ED9DDF40019C3ED /* CSVWriterTests.swift in Sources */ = {isa = PBXBuildFile; fileRef = 0E54021A1ED9DDF40019C3ED /* CSVWriterTests.swift */; };
 		0E7E8C8C1D0BC7BB0057A1C1 /* CSV.framework in Frameworks */ = {isa = PBXBuildFile; fileRef = 0E7E8C811D0BC7BB0057A1C1 /* CSV.framework */; };
-		0E7E8CA01D0BC7F10057A1C1 /* ByteOrder.swift in Sources */ = {isa = PBXBuildFile; fileRef = 0E7E8C9C1D0BC7F10057A1C1 /* ByteOrder.swift */; };
-		0E7E8CA11D0BC7F10057A1C1 /* CSV.swift in Sources */ = {isa = PBXBuildFile; fileRef = 0E7E8C9D1D0BC7F10057A1C1 /* CSV.swift */; };
-		0E7E8CA21D0BC7F10057A1C1 /* CSVError.swift in Sources */ = {isa = PBXBuildFile; fileRef = 0E7E8C9E1D0BC7F10057A1C1 /* CSVError.swift */; };
 		0E7E8CA31D0BC7F10057A1C1 /* CSVVersion.h in Headers */ = {isa = PBXBuildFile; fileRef = 0E7E8C9F1D0BC7F10057A1C1 /* CSVVersion.h */; settings = {ATTRIBUTES = (Public, ); }; };
-		0E7E8CA91D0BC8050057A1C1 /* CSVReaderTests.swift in Sources */ = {isa = PBXBuildFile; fileRef = 0E7E8CA61D0BC8050057A1C1 /* CSVReaderTests.swift */; };
-		0E7E8CAA1D0BC8050057A1C1 /* CSVTests.swift in Sources */ = {isa = PBXBuildFile; fileRef = 0E7E8CA71D0BC8050057A1C1 /* CSVTests.swift */; };
-		0E7E8CBD1D0BC9D70057A1C1 /* ByteOrder.swift in Sources */ = {isa = PBXBuildFile; fileRef = 0E7E8C9C1D0BC7F10057A1C1 /* ByteOrder.swift */; };
-		0E7E8CBE1D0BC9D70057A1C1 /* CSV.swift in Sources */ = {isa = PBXBuildFile; fileRef = 0E7E8C9D1D0BC7F10057A1C1 /* CSV.swift */; };
-		0E7E8CBF1D0BC9D70057A1C1 /* CSVError.swift in Sources */ = {isa = PBXBuildFile; fileRef = 0E7E8C9E1D0BC7F10057A1C1 /* CSVError.swift */; };
 		0E7E8CC01D0BC9D70057A1C1 /* CSVVersion.h in Headers */ = {isa = PBXBuildFile; fileRef = 0E7E8C9F1D0BC7F10057A1C1 /* CSVVersion.h */; settings = {ATTRIBUTES = (Public, ); }; };
 		0E7E8CD01D0BCA2A0057A1C1 /* CSV.framework in Frameworks */ = {isa = PBXBuildFile; fileRef = 0E7E8CC61D0BCA2A0057A1C1 /* CSV.framework */; };
-		0E7E8CDD1D0BCA840057A1C1 /* CSVReaderTests.swift in Sources */ = {isa = PBXBuildFile; fileRef = 0E7E8CA61D0BC8050057A1C1 /* CSVReaderTests.swift */; };
-		0E7E8CDE1D0BCA840057A1C1 /* CSVTests.swift in Sources */ = {isa = PBXBuildFile; fileRef = 0E7E8CA71D0BC8050057A1C1 /* CSVTests.swift */; };
-		0E7E8CDF1D0BCA8E0057A1C1 /* ByteOrder.swift in Sources */ = {isa = PBXBuildFile; fileRef = 0E7E8C9C1D0BC7F10057A1C1 /* ByteOrder.swift */; };
-		0E7E8CE01D0BCA8E0057A1C1 /* CSV.swift in Sources */ = {isa = PBXBuildFile; fileRef = 0E7E8C9D1D0BC7F10057A1C1 /* CSV.swift */; };
-		0E7E8CE11D0BCA8E0057A1C1 /* CSVError.swift in Sources */ = {isa = PBXBuildFile; fileRef = 0E7E8C9E1D0BC7F10057A1C1 /* CSVError.swift */; };
 		0E7E8CE21D0BCA8E0057A1C1 /* CSVVersion.h in Headers */ = {isa = PBXBuildFile; fileRef = 0E7E8C9F1D0BC7F10057A1C1 /* CSVVersion.h */; settings = {ATTRIBUTES = (Public, ); }; };
 		0E7E8CF21D0BCD0B0057A1C1 /* CSV.framework in Frameworks */ = {isa = PBXBuildFile; fileRef = 0E7E8CE81D0BCD0B0057A1C1 /* CSV.framework */; };
-		0E7E8CFF1D0BCDCF0057A1C1 /* ByteOrder.swift in Sources */ = {isa = PBXBuildFile; fileRef = 0E7E8C9C1D0BC7F10057A1C1 /* ByteOrder.swift */; };
-		0E7E8D001D0BCDCF0057A1C1 /* CSV.swift in Sources */ = {isa = PBXBuildFile; fileRef = 0E7E8C9D1D0BC7F10057A1C1 /* CSV.swift */; };
-		0E7E8D011D0BCDCF0057A1C1 /* CSVError.swift in Sources */ = {isa = PBXBuildFile; fileRef = 0E7E8C9E1D0BC7F10057A1C1 /* CSVError.swift */; };
 		0E7E8D021D0BCDCF0057A1C1 /* CSVVersion.h in Headers */ = {isa = PBXBuildFile; fileRef = 0E7E8C9F1D0BC7F10057A1C1 /* CSVVersion.h */; settings = {ATTRIBUTES = (Public, ); }; };
-		0E7E8D031D0BCDDD0057A1C1 /* CSVReaderTests.swift in Sources */ = {isa = PBXBuildFile; fileRef = 0E7E8CA61D0BC8050057A1C1 /* CSVReaderTests.swift */; };
+		0E7F657B1EF6437E00E1E1A0 /* Version1Tests.swift in Sources */ = {isa = PBXBuildFile; fileRef = 0E7F657A1EF6437E00E1E1A0 /* Version1Tests.swift */; };
-		0E7E8D041D0BCDDD0057A1C1 /* CSVTests.swift in Sources */ = {isa = PBXBuildFile; fileRef = 0E7E8CA71D0BC8050057A1C1 /* CSVTests.swift */; };
+		0E7F657C1EF6437E00E1E1A0 /* Version1Tests.swift in Sources */ = {isa = PBXBuildFile; fileRef = 0E7F657A1EF6437E00E1E1A0 /* Version1Tests.swift */; };
+		0E7F657D1EF6437E00E1E1A0 /* Version1Tests.swift in Sources */ = {isa = PBXBuildFile; fileRef = 0E7F657A1EF6437E00E1E1A0 /* Version1Tests.swift */; };
+		0E87607B219D992900C6C7FA /* BinaryReaderTests.swift in Sources */ = {isa = PBXBuildFile; fileRef = 0E87607A219D992900C6C7FA /* BinaryReaderTests.swift */; };
+		0E87607C219D992900C6C7FA /* BinaryReaderTests.swift in Sources */ = {isa = PBXBuildFile; fileRef = 0E87607A219D992900C6C7FA /* BinaryReaderTests.swift */; };
+		0E87607D219D992900C6C7FA /* BinaryReaderTests.swift in Sources */ = {isa = PBXBuildFile; fileRef = 0E87607A219D992900C6C7FA /* BinaryReaderTests.swift */; };
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+		0E876080219FF43B00C6C7FA /* CSVRowDecoder.swift in Sources */ = {isa = PBXBuildFile; fileRef = 0E87607E219FF43B00C6C7FA /* CSVRowDecoder.swift */; };
+		0E876081219FF43B00C6C7FA /* CSVRowDecoder.swift in Sources */ = {isa = PBXBuildFile; fileRef = 0E87607E219FF43B00C6C7FA /* CSVRowDecoder.swift */; };
+		0E876082219FF43B00C6C7FA /* CSVRowDecoder.swift in Sources */ = {isa = PBXBuildFile; fileRef = 0E87607E219FF43B00C6C7FA /* CSVRowDecoder.swift */; };
+		0E959C62208B611F005F8D01 /* CSVError.swift in Sources */ = {isa = PBXBuildFile; fileRef = 0E959C5B208B611F005F8D01 /* CSVError.swift */; };
+		0E959C63208B611F005F8D01 /* CSVError.swift in Sources */ = {isa = PBXBuildFile; fileRef = 0E959C5B208B611F005F8D01 /* CSVError.swift */; };
+		0E959C64208B611F005F8D01 /* CSVError.swift in Sources */ = {isa = PBXBuildFile; fileRef = 0E959C5B208B611F005F8D01 /* CSVError.swift */; };
+		0E959C65208B611F005F8D01 /* CSVError.swift in Sources */ = {isa = PBXBuildFile; fileRef = 0E959C5B208B611F005F8D01 /* CSVError.swift */; };
+		0E959C66208B611F005F8D01 /* CSVWriter.swift in Sources */ = {isa = PBXBuildFile; fileRef = 0E959C5C208B611F005F8D01 /* CSVWriter.swift */; };
+		0E959C67208B611F005F8D01 /* CSVWriter.swift in Sources */ = {isa = PBXBuildFile; fileRef = 0E959C5C208B611F005F8D01 /* CSVWriter.swift */; };
+		0E959C68208B611F005F8D01 /* CSVWriter.swift in Sources */ = {isa = PBXBuildFile; fileRef = 0E959C5C208B611F005F8D01 /* CSVWriter.swift */; };
+		0E959C69208B611F005F8D01 /* CSVWriter.swift in Sources */ = {isa = PBXBuildFile; fileRef = 0E959C5C208B611F005F8D01 /* CSVWriter.swift */; };
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+		0E959C6E208B611F005F8D01 /* BinaryReader.swift in Sources */ = {isa = PBXBuildFile; fileRef = 0E959C5E208B611F005F8D01 /* BinaryReader.swift */; };
+		0E959C6F208B611F005F8D01 /* BinaryReader.swift in Sources */ = {isa = PBXBuildFile; fileRef = 0E959C5E208B611F005F8D01 /* BinaryReader.swift */; };
+		0E959C70208B611F005F8D01 /* BinaryReader.swift in Sources */ = {isa = PBXBuildFile; fileRef = 0E959C5E208B611F005F8D01 /* BinaryReader.swift */; };
+		0E959C71208B611F005F8D01 /* BinaryReader.swift in Sources */ = {isa = PBXBuildFile; fileRef = 0E959C5E208B611F005F8D01 /* BinaryReader.swift */; };
+		0E959C72208B611F005F8D01 /* UnicodeIterator.swift in Sources */ = {isa = PBXBuildFile; fileRef = 0E959C5F208B611F005F8D01 /* UnicodeIterator.swift */; };
+		0E959C73208B611F005F8D01 /* UnicodeIterator.swift in Sources */ = {isa = PBXBuildFile; fileRef = 0E959C5F208B611F005F8D01 /* UnicodeIterator.swift */; };
+		0E959C74208B611F005F8D01 /* UnicodeIterator.swift in Sources */ = {isa = PBXBuildFile; fileRef = 0E959C5F208B611F005F8D01 /* UnicodeIterator.swift */; };
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+		0E959C7A208B611F005F8D01 /* CSVReader.swift in Sources */ = {isa = PBXBuildFile; fileRef = 0E959C61208B611F005F8D01 /* CSVReader.swift */; };
+		0E959C7B208B611F005F8D01 /* CSVReader.swift in Sources */ = {isa = PBXBuildFile; fileRef = 0E959C61208B611F005F8D01 /* CSVReader.swift */; };
+		0E959C7C208B611F005F8D01 /* CSVReader.swift in Sources */ = {isa = PBXBuildFile; fileRef = 0E959C61208B611F005F8D01 /* CSVReader.swift */; };
+		0E959C7D208B611F005F8D01 /* CSVReader.swift in Sources */ = {isa = PBXBuildFile; fileRef = 0E959C61208B611F005F8D01 /* CSVReader.swift */; };
+		0EDF8ED71DDB73520068056A /* CSVReaderTests.swift in Sources */ = {isa = PBXBuildFile; fileRef = 0EDF8ECD1DDB73370068056A /* CSVReaderTests.swift */; };
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+		0EDF8EDB1DDB73520068056A /* UnicodeTests.swift in Sources */ = {isa = PBXBuildFile; fileRef = 0EDF8ED11DDB73370068056A /* UnicodeTests.swift */; };
+		0EDF8EDC1DDB73520068056A /* CSVReaderTests.swift in Sources */ = {isa = PBXBuildFile; fileRef = 0EDF8ECD1DDB73370068056A /* CSVReaderTests.swift */; };
+		0EDF8EDD1DDB73520068056A /* LineBreakTests.swift in Sources */ = {isa = PBXBuildFile; fileRef = 0EDF8ECE1DDB73370068056A /* LineBreakTests.swift */; };
+		0EDF8EDE1DDB73520068056A /* ReadmeTests.swift in Sources */ = {isa = PBXBuildFile; fileRef = 0EDF8ECF1DDB73370068056A /* ReadmeTests.swift */; };
+		0EDF8EDF1DDB73520068056A /* TrimFieldsTests.swift in Sources */ = {isa = PBXBuildFile; fileRef = 0EDF8ED01DDB73370068056A /* TrimFieldsTests.swift */; };
+		0EDF8EE01DDB73520068056A /* UnicodeTests.swift in Sources */ = {isa = PBXBuildFile; fileRef = 0EDF8ED11DDB73370068056A /* UnicodeTests.swift */; };
+		0EDF8EE11DDB73530068056A /* CSVReaderTests.swift in Sources */ = {isa = PBXBuildFile; fileRef = 0EDF8ECD1DDB73370068056A /* CSVReaderTests.swift */; };
+		0EDF8EE21DDB73530068056A /* LineBreakTests.swift in Sources */ = {isa = PBXBuildFile; fileRef = 0EDF8ECE1DDB73370068056A /* LineBreakTests.swift */; };
+		0EDF8EE31DDB73530068056A /* ReadmeTests.swift in Sources */ = {isa = PBXBuildFile; fileRef = 0EDF8ECF1DDB73370068056A /* ReadmeTests.swift */; };
+		0EDF8EE41DDB73530068056A /* TrimFieldsTests.swift in Sources */ = {isa = PBXBuildFile; fileRef = 0EDF8ED01DDB73370068056A /* TrimFieldsTests.swift */; };
+		0EDF8EE51DDB73530068056A /* UnicodeTests.swift in Sources */ = {isa = PBXBuildFile; fileRef = 0EDF8ED11DDB73370068056A /* UnicodeTests.swift */; };
+		3C89219E21484154004AA78A /* CSVRowDecoderTests.swift in Sources */ = {isa = PBXBuildFile; fileRef = 3C89219D21484153004AA78A /* CSVRowDecoderTests.swift */; };
+		3C89219F21484154004AA78A /* CSVRowDecoderTests.swift in Sources */ = {isa = PBXBuildFile; fileRef = 3C89219D21484153004AA78A /* CSVRowDecoderTests.swift */; };
+		3C8921A021484154004AA78A /* CSVRowDecoderTests.swift in Sources */ = {isa = PBXBuildFile; fileRef = 3C89219D21484153004AA78A /* CSVRowDecoderTests.swift */; };
 /* End PBXBuildFile section */
 
 /* Begin PBXContainerItemProxy section */
@@ -40,14 +81,14 @@
 			containerPortal = 0E7E8C781D0BC7BB0057A1C1 /* Project object */;
 			proxyType = 1;
 			remoteGlobalIDString = 0E7E8C801D0BC7BB0057A1C1;
-			remoteInfo = CSV;
+			remoteInfo = "CSV-iOS";
 		};
 		0E7E8CD11D0BCA2A0057A1C1 /* PBXContainerItemProxy */ = {
 			isa = PBXContainerItemProxy;
 			containerPortal = 0E7E8C781D0BC7BB0057A1C1 /* Project object */;
 			proxyType = 1;
 			remoteGlobalIDString = 0E7E8CC51D0BCA2A0057A1C1;
-			remoteInfo = "CSV-OSX";
+			remoteInfo = "CSV-macOS";
 		};
 		0E7E8CF31D0BCD0B0057A1C1 /* PBXContainerItemProxy */ = {
 			isa = PBXContainerItemProxy;
@@ -59,21 +100,33 @@
 /* End PBXContainerItemProxy section */
 
 /* Begin PBXFileReference section */
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-		0E7E8C9D1D0BC7F10057A1C1 /* CSV.swift */ = {isa = PBXFileReference; fileEncoding = 4; lastKnownFileType = sourcecode.swift; path = CSV.swift; sourceTree = "<group>"; };
-		0E7E8C9E1D0BC7F10057A1C1 /* CSVError.swift */ = {isa = PBXFileReference; fileEncoding = 4; lastKnownFileType = sourcecode.swift; path = CSVError.swift; sourceTree = "<group>"; };
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+		0E87607A219D992900C6C7FA /* BinaryReaderTests.swift */ = {isa = PBXFileReference; fileEncoding = 4; lastKnownFileType = sourcecode.swift; path = BinaryReaderTests.swift; sourceTree = "<group>"; };
+		0E87607E219FF43B00C6C7FA /* CSVRowDecoder.swift */ = {isa = PBXFileReference; lastKnownFileType = sourcecode.swift; path = CSVRowDecoder.swift; sourceTree = "<group>"; };
+		0E959C5B208B611F005F8D01 /* CSVError.swift */ = {isa = PBXFileReference; fileEncoding = 4; lastKnownFileType = sourcecode.swift; path = CSVError.swift; sourceTree = "<group>"; };
+		0E959C5C208B611F005F8D01 /* CSVWriter.swift */ = {isa = PBXFileReference; fileEncoding = 4; lastKnownFileType = sourcecode.swift; path = CSVWriter.swift; sourceTree = "<group>"; };
+		0E959C5D208B611F005F8D01 /* Legacy.swift */ = {isa = PBXFileReference; fileEncoding = 4; lastKnownFileType = sourcecode.swift; path = Legacy.swift; sourceTree = "<group>"; };
+		0E959C5E208B611F005F8D01 /* BinaryReader.swift */ = {isa = PBXFileReference; fileEncoding = 4; lastKnownFileType = sourcecode.swift; path = BinaryReader.swift; sourceTree = "<group>"; };
+		0E959C5F208B611F005F8D01 /* UnicodeIterator.swift */ = {isa = PBXFileReference; fileEncoding = 4; lastKnownFileType = sourcecode.swift; path = UnicodeIterator.swift; sourceTree = "<group>"; };
+		0E959C60208B611F005F8D01 /* Endian.swift */ = {isa = PBXFileReference; fileEncoding = 4; lastKnownFileType = sourcecode.swift; path = Endian.swift; sourceTree = "<group>"; };
+		0E959C61208B611F005F8D01 /* CSVReader.swift */ = {isa = PBXFileReference; fileEncoding = 4; lastKnownFileType = sourcecode.swift; path = CSVReader.swift; sourceTree = "<group>"; };
+		0EDF8ECD1DDB73370068056A /* CSVReaderTests.swift */ = {isa = PBXFileReference; fileEncoding = 4; lastKnownFileType = sourcecode.swift; path = CSVReaderTests.swift; sourceTree = "<group>"; };
+		0EDF8ECE1DDB73370068056A /* LineBreakTests.swift */ = {isa = PBXFileReference; fileEncoding = 4; lastKnownFileType = sourcecode.swift; path = LineBreakTests.swift; sourceTree = "<group>"; };
+		0EDF8ECF1DDB73370068056A /* ReadmeTests.swift */ = {isa = PBXFileReference; fileEncoding = 4; lastKnownFileType = sourcecode.swift; path = ReadmeTests.swift; sourceTree = "<group>"; };
+		0EDF8ED01DDB73370068056A /* TrimFieldsTests.swift */ = {isa = PBXFileReference; fileEncoding = 4; lastKnownFileType = sourcecode.swift; path = TrimFieldsTests.swift; sourceTree = "<group>"; };
+		0EDF8ED11DDB73370068056A /* UnicodeTests.swift */ = {isa = PBXFileReference; fileEncoding = 4; lastKnownFileType = sourcecode.swift; path = UnicodeTests.swift; sourceTree = "<group>"; };
+		3C89219D21484153004AA78A /* CSVRowDecoderTests.swift */ = {isa = PBXFileReference; lastKnownFileType = sourcecode.swift; path = CSVRowDecoderTests.swift; sourceTree = "<group>"; };
 /* End PBXFileReference section */
 
 /* Begin PBXFrameworksBuildPhase section */
@@ -140,6 +193,7 @@
 				0E7E8C821D0BC7BB0057A1C1 /* Products */,
 			);
 			sourceTree = "<group>";
+			usesTabs = 0;
 		};
 		0E7E8C821D0BC7BB0057A1C1 /* Products */ = {
 			isa = PBXGroup;
@@ -148,7 +202,7 @@
 				0E7E8C8B1D0BC7BB0057A1C1 /* CSVTests-iOS.xctest */,
 				0E7E8CB51D0BC98B0057A1C1 /* CSV.framework */,
 				0E7E8CC61D0BCA2A0057A1C1 /* CSV.framework */,
-				0E7E8CCF1D0BCA2A0057A1C1 /* CSVTests-OSX.xctest */,
+				0E7E8CCF1D0BCA2A0057A1C1 /* CSVTests-macOS.xctest */,
 				0E7E8CE81D0BCD0B0057A1C1 /* CSV.framework */,
 				0E7E8CF11D0BCD0B0057A1C1 /* CSVTests-tvOS.xctest */,
 			);
@@ -158,9 +212,7 @@
 		0E7E8C9B1D0BC7F10057A1C1 /* Sources */ = {
 			isa = PBXGroup;
 			children = (
-				0E7E8C9C1D0BC7F10057A1C1 /* ByteOrder.swift */,
+				0E959C5A208B611F005F8D01 /* CSV */,
-				0E7E8C9D1D0BC7F10057A1C1 /* CSV.swift */,
-				0E7E8C9E1D0BC7F10057A1C1 /* CSVError.swift */,
 				0E7E8C9F1D0BC7F10057A1C1 /* CSVVersion.h */,
 				0E7E8CAC1D0BC8610057A1C1 /* Info.plist */,
 			);
@@ -170,21 +222,43 @@
 		0E7E8CA41D0BC8050057A1C1 /* Tests */ = {
 			isa = PBXGroup;
 			children = (
-				0E7E8CA51D0BC8050057A1C1 /* CSV */,
+				0EA37AC81DD8C0B900F5B274 /* CSVTests */,
 				0E7E8CAE1D0BC8690057A1C1 /* Info.plist */,
 			);
 			path = Tests;
 			sourceTree = "<group>";
 		};
-		0E7E8CA51D0BC8050057A1C1 /* CSV */ = {
+		0E959C5A208B611F005F8D01 /* CSV */ = {
 			isa = PBXGroup;
 			children = (
-				0E7E8CA61D0BC8050057A1C1 /* CSVReaderTests.swift */,
+				0E959C5E208B611F005F8D01 /* BinaryReader.swift */,
-				0E7E8CA71D0BC8050057A1C1 /* CSVTests.swift */,
+				0E959C5D208B611F005F8D01 /* Legacy.swift */,
+				0E959C5B208B611F005F8D01 /* CSVError.swift */,
+				0E959C61208B611F005F8D01 /* CSVReader.swift */,
+				0E87607E219FF43B00C6C7FA /* CSVRowDecoder.swift */,
+				0E959C5C208B611F005F8D01 /* CSVWriter.swift */,
+				0E959C60208B611F005F8D01 /* Endian.swift */,
+				0E959C5F208B611F005F8D01 /* UnicodeIterator.swift */,
 			);
 			path = CSV;
 			sourceTree = "<group>";
 		};
+		0EA37AC81DD8C0B900F5B274 /* CSVTests */ = {
+			isa = PBXGroup;
+			children = (
+				0E87607A219D992900C6C7FA /* BinaryReaderTests.swift */,
+				0EDF8ECD1DDB73370068056A /* CSVReaderTests.swift */,
+				3C89219D21484153004AA78A /* CSVRowDecoderTests.swift */,
+				0E54021A1ED9DDF40019C3ED /* CSVWriterTests.swift */,
+				0EDF8ECE1DDB73370068056A /* LineBreakTests.swift */,
+				0EDF8ECF1DDB73370068056A /* ReadmeTests.swift */,
+				0EDF8ED01DDB73370068056A /* TrimFieldsTests.swift */,
+				0EDF8ED11DDB73370068056A /* UnicodeTests.swift */,
+				0E7F657A1EF6437E00E1E1A0 /* Version1Tests.swift */,
+			);
+			path = CSVTests;
+			sourceTree = "<group>";
+		};
 /* End PBXGroup section */
 
 /* Begin PBXHeadersBuildPhase section */
@@ -255,7 +329,7 @@
 				0E7E8C8E1D0BC7BB0057A1C1 /* PBXTargetDependency */,
 			);
 			name = "CSVTests-iOS";
-			productName = CSVTests;
+			productName = "CSVTests-iOS";
 			productReference = 0E7E8C8B1D0BC7BB0057A1C1 /* CSVTests-iOS.xctest */;
 			productType = "com.apple.product-type.bundle.unit-test";
 		};
@@ -277,10 +351,11 @@
 			productReference = 0E7E8CB51D0BC98B0057A1C1 /* CSV.framework */;
 			productType = "com.apple.product-type.framework";
 		};
-		0E7E8CC51D0BCA2A0057A1C1 /* CSV-OSX */ = {
+		0E7E8CC51D0BCA2A0057A1C1 /* CSV-macOS */ = {
 			isa = PBXNativeTarget;
-			buildConfigurationList = 0E7E8CD71D0BCA2A0057A1C1 /* Build configuration list for PBXNativeTarget "CSV-OSX" */;
+			buildConfigurationList = 0E7E8CD71D0BCA2A0057A1C1 /* Build configuration list for PBXNativeTarget "CSV-macOS" */;
 			buildPhases = (
+				0E47EEBF1DBBC05700EBF783 /* Run Script () */,
 				0E7E8CC11D0BCA2A0057A1C1 /* Sources */,
 				0E7E8CC21D0BCA2A0057A1C1 /* Frameworks */,
 				0E7E8CC31D0BCA2A0057A1C1 /* Headers */,
@@ -290,14 +365,14 @@
 			);
 			dependencies = (
 			);
-			name = "CSV-OSX";
+			name = "CSV-macOS";
-			productName = "CSV-OSX";
+			productName = "CSV-macOS";
 			productReference = 0E7E8CC61D0BCA2A0057A1C1 /* CSV.framework */;
 			productType = "com.apple.product-type.framework";
 		};
-		0E7E8CCE1D0BCA2A0057A1C1 /* CSVTests-OSX */ = {
+		0E7E8CCE1D0BCA2A0057A1C1 /* CSVTests-macOS */ = {
 			isa = PBXNativeTarget;
-			buildConfigurationList = 0E7E8CDA1D0BCA2A0057A1C1 /* Build configuration list for PBXNativeTarget "CSVTests-OSX" */;
+			buildConfigurationList = 0E7E8CDA1D0BCA2A0057A1C1 /* Build configuration list for PBXNativeTarget "CSVTests-macOS" */;
 			buildPhases = (
 				0E7E8CCB1D0BCA2A0057A1C1 /* Sources */,
 				0E7E8CCC1D0BCA2A0057A1C1 /* Frameworks */,
@@ -308,9 +383,9 @@
 			dependencies = (
 				0E7E8CD21D0BCA2A0057A1C1 /* PBXTargetDependency */,
 			);
-			name = "CSVTests-OSX";
+			name = "CSVTests-macOS";
-			productName = "CSV-OSXTests";
+			productName = "CSVTests-macOS";
-			productReference = 0E7E8CCF1D0BCA2A0057A1C1 /* CSVTests-OSX.xctest */;
+			productReference = 0E7E8CCF1D0BCA2A0057A1C1 /* CSVTests-macOS.xctest */;
 			productType = "com.apple.product-type.bundle.unit-test";
 		};
 		0E7E8CE71D0BCD0B0057A1C1 /* CSV-tvOS */ = {
@@ -345,7 +420,7 @@
 				0E7E8CF41D0BCD0B0057A1C1 /* PBXTargetDependency */,
 			);
 			name = "CSVTests-tvOS";
-			productName = "CSV-tvOSTests";
+			productName = "CSVTests-tvOS";
 			productReference = 0E7E8CF11D0BCD0B0057A1C1 /* CSVTests-tvOS.xctest */;
 			productType = "com.apple.product-type.bundle.unit-test";
 		};
@@ -355,50 +430,58 @@
 		0E7E8C781D0BC7BB0057A1C1 /* Project object */ = {
 			isa = PBXProject;
 			attributes = {
-				LastSwiftUpdateCheck = 0730;
+				LastSwiftUpdateCheck = 1010;
-				LastUpgradeCheck = 0730;
+				LastUpgradeCheck = 1020;
 				ORGANIZATIONNAME = yaslab;
 				TargetAttributes = {
 					0E7E8C801D0BC7BB0057A1C1 = {
 						CreatedOnToolsVersion = 7.3.1;
+						LastSwiftMigration = 1020;
 					};
 					0E7E8C8A1D0BC7BB0057A1C1 = {
 						CreatedOnToolsVersion = 7.3.1;
+						LastSwiftMigration = 1020;
 					};
 					0E7E8CB41D0BC98B0057A1C1 = {
 						CreatedOnToolsVersion = 7.3.1;
+						LastSwiftMigration = 0800;
 					};
 					0E7E8CC51D0BCA2A0057A1C1 = {
 						CreatedOnToolsVersion = 7.3.1;
+						LastSwiftMigration = 1020;
 					};
 					0E7E8CCE1D0BCA2A0057A1C1 = {
 						CreatedOnToolsVersion = 7.3.1;
+						LastSwiftMigration = 1020;
 					};
 					0E7E8CE71D0BCD0B0057A1C1 = {
 						CreatedOnToolsVersion = 7.3.1;
+						LastSwiftMigration = 0800;
 					};
 					0E7E8CF01D0BCD0B0057A1C1 = {
 						CreatedOnToolsVersion = 7.3.1;
+						LastSwiftMigration = 0930;
 					};
 				};
 			};
 			buildConfigurationList = 0E7E8C7B1D0BC7BB0057A1C1 /* Build configuration list for PBXProject "CSV" */;
 			compatibilityVersion = "Xcode 3.2";
-			developmentRegion = English;
+			developmentRegion = en;
 			hasScannedForEncodings = 0;
 			knownRegions = (
 				en,
+				Base,
 			);
 			mainGroup = 0E7E8C771D0BC7BB0057A1C1;
 			productRefGroup = 0E7E8C821D0BC7BB0057A1C1 /* Products */;
 			projectDirPath = "";
 			projectRoot = "";
 			targets = (
-				0E7E8CC51D0BCA2A0057A1C1 /* CSV-OSX */,
+				0E7E8CC51D0BCA2A0057A1C1 /* CSV-macOS */,
 				0E7E8C801D0BC7BB0057A1C1 /* CSV-iOS */,
 				0E7E8CE71D0BCD0B0057A1C1 /* CSV-tvOS */,
 				0E7E8CB41D0BC98B0057A1C1 /* CSV-watchOS */,
-				0E7E8CCE1D0BCA2A0057A1C1 /* CSVTests-OSX */,
+				0E7E8CCE1D0BCA2A0057A1C1 /* CSVTests-macOS */,
 				0E7E8C8A1D0BC7BB0057A1C1 /* CSVTests-iOS */,
 				0E7E8CF01D0BCD0B0057A1C1 /* CSVTests-tvOS */,
 			);
@@ -457,14 +540,36 @@
 		};
 /* End PBXResourcesBuildPhase section */
 
+/* Begin PBXShellScriptBuildPhase section */
+		0E47EEBF1DBBC05700EBF783 /* Run Script () */ = {
+			isa = PBXShellScriptBuildPhase;
+			buildActionMask = 2147483647;
+			files = (
+			);
+			inputPaths = (
+			);
+			name = "Run Script ()";
+			outputPaths = (
+			);
+			runOnlyForDeploymentPostprocessing = 0;
+			shellPath = /bin/sh;
+			shellScript = "if which swiftlint >/dev/null; then\n    swiftlint autocorrect\n    swiftlint\nelse\n    echo \"warning: SwiftLint not installed, download from https://github.com/realm/SwiftLint\"\nfi";
+		};
+/* End PBXShellScriptBuildPhase section */
+
 /* Begin PBXSourcesBuildPhase section */
 		0E7E8C7C1D0BC7BB0057A1C1 /* Sources */ = {
 			isa = PBXSourcesBuildPhase;
 			buildActionMask = 2147483647;
 			files = (
-				0E7E8CA11D0BC7F10057A1C1 /* CSV.swift in Sources */,
+				0E959C63208B611F005F8D01 /* CSVError.swift in Sources */,
-				0E7E8CA21D0BC7F10057A1C1 /* CSVError.swift in Sources */,
+				0E876080219FF43B00C6C7FA /* CSVRowDecoder.swift in Sources */,
-				0E7E8CA01D0BC7F10057A1C1 /* ByteOrder.swift in Sources */,
+				0E959C6F208B611F005F8D01 /* BinaryReader.swift in Sources */,
+				0E959C77208B611F005F8D01 /* Endian.swift in Sources */,
+				0E959C67208B611F005F8D01 /* CSVWriter.swift in Sources */,
+				0E959C73208B611F005F8D01 /* UnicodeIterator.swift in Sources */,
+				0E959C6B208B611F005F8D01 /* Legacy.swift in Sources */,
+				0E959C7B208B611F005F8D01 /* CSVReader.swift in Sources */,
 			);
 			runOnlyForDeploymentPostprocessing = 0;
 		};
@@ -472,8 +577,15 @@
 			isa = PBXSourcesBuildPhase;
 			buildActionMask = 2147483647;
 			files = (
-				0E7E8CAA1D0BC8050057A1C1 /* CSVTests.swift in Sources */,
+				0EDF8EDE1DDB73520068056A /* ReadmeTests.swift in Sources */,
-				0E7E8CA91D0BC8050057A1C1 /* CSVReaderTests.swift in Sources */,
+				3C89219F21484154004AA78A /* CSVRowDecoderTests.swift in Sources */,
+				0EDF8EDC1DDB73520068056A /* CSVReaderTests.swift in Sources */,
+				0EDF8EDF1DDB73520068056A /* TrimFieldsTests.swift in Sources */,
+				0E7F657C1EF6437E00E1E1A0 /* Version1Tests.swift in Sources */,
+				0EDF8EE01DDB73520068056A /* UnicodeTests.swift in Sources */,
+				0E87607C219D992900C6C7FA /* BinaryReaderTests.swift in Sources */,
+				0EDF8EDD1DDB73520068056A /* LineBreakTests.swift in Sources */,
+				0E54021C1ED9DDF40019C3ED /* CSVWriterTests.swift in Sources */,
 			);
 			runOnlyForDeploymentPostprocessing = 0;
 		};
@@ -481,9 +593,14 @@
 			isa = PBXSourcesBuildPhase;
 			buildActionMask = 2147483647;
 			files = (
-				0E7E8CBE1D0BC9D70057A1C1 /* CSV.swift in Sources */,
+				0E959C65208B611F005F8D01 /* CSVError.swift in Sources */,
-				0E7E8CBF1D0BC9D70057A1C1 /* CSVError.swift in Sources */,
+				0E876082219FF43B00C6C7FA /* CSVRowDecoder.swift in Sources */,
-				0E7E8CBD1D0BC9D70057A1C1 /* ByteOrder.swift in Sources */,
+				0E959C71208B611F005F8D01 /* BinaryReader.swift in Sources */,
+				0E959C79208B611F005F8D01 /* Endian.swift in Sources */,
+				0E959C69208B611F005F8D01 /* CSVWriter.swift in Sources */,
+				0E959C75208B611F005F8D01 /* UnicodeIterator.swift in Sources */,
+				0E959C6D208B611F005F8D01 /* Legacy.swift in Sources */,
+				0E959C7D208B611F005F8D01 /* CSVReader.swift in Sources */,
 			);
 			runOnlyForDeploymentPostprocessing = 0;
 		};
@@ -491,9 +608,14 @@
 			isa = PBXSourcesBuildPhase;
 			buildActionMask = 2147483647;
 			files = (
-				0E7E8CE01D0BCA8E0057A1C1 /* CSV.swift in Sources */,
+				0E959C62208B611F005F8D01 /* CSVError.swift in Sources */,
-				0E7E8CE11D0BCA8E0057A1C1 /* CSVError.swift in Sources */,
+				0E87607F219FF43B00C6C7FA /* CSVRowDecoder.swift in Sources */,
-				0E7E8CDF1D0BCA8E0057A1C1 /* ByteOrder.swift in Sources */,
+				0E959C6E208B611F005F8D01 /* BinaryReader.swift in Sources */,
+				0E959C76208B611F005F8D01 /* Endian.swift in Sources */,
+				0E959C66208B611F005F8D01 /* CSVWriter.swift in Sources */,
+				0E959C72208B611F005F8D01 /* UnicodeIterator.swift in Sources */,
+				0E959C6A208B611F005F8D01 /* Legacy.swift in Sources */,
+				0E959C7A208B611F005F8D01 /* CSVReader.swift in Sources */,
 			);
 			runOnlyForDeploymentPostprocessing = 0;
 		};
@@ -501,8 +623,15 @@
 			isa = PBXSourcesBuildPhase;
 			buildActionMask = 2147483647;
 			files = (
-				0E7E8CDE1D0BCA840057A1C1 /* CSVTests.swift in Sources */,
+				0EDF8ED91DDB73520068056A /* ReadmeTests.swift in Sources */,
-				0E7E8CDD1D0BCA840057A1C1 /* CSVReaderTests.swift in Sources */,
+				3C89219E21484154004AA78A /* CSVRowDecoderTests.swift in Sources */,
+				0EDF8ED71DDB73520068056A /* CSVReaderTests.swift in Sources */,
+				0EDF8EDA1DDB73520068056A /* TrimFieldsTests.swift in Sources */,
+				0E7F657B1EF6437E00E1E1A0 /* Version1Tests.swift in Sources */,
+				0EDF8EDB1DDB73520068056A /* UnicodeTests.swift in Sources */,
+				0E87607B219D992900C6C7FA /* BinaryReaderTests.swift in Sources */,
+				0EDF8ED81DDB73520068056A /* LineBreakTests.swift in Sources */,
+				0E54021B1ED9DDF40019C3ED /* CSVWriterTests.swift in Sources */,
 			);
 			runOnlyForDeploymentPostprocessing = 0;
 		};
@@ -510,9 +639,14 @@
 			isa = PBXSourcesBuildPhase;
 			buildActionMask = 2147483647;
 			files = (
-				0E7E8D001D0BCDCF0057A1C1 /* CSV.swift in Sources */,
+				0E959C64208B611F005F8D01 /* CSVError.swift in Sources */,
-				0E7E8D011D0BCDCF0057A1C1 /* CSVError.swift in Sources */,
+				0E876081219FF43B00C6C7FA /* CSVRowDecoder.swift in Sources */,
-				0E7E8CFF1D0BCDCF0057A1C1 /* ByteOrder.swift in Sources */,
+				0E959C70208B611F005F8D01 /* BinaryReader.swift in Sources */,
+				0E959C78208B611F005F8D01 /* Endian.swift in Sources */,
+				0E959C68208B611F005F8D01 /* CSVWriter.swift in Sources */,
+				0E959C74208B611F005F8D01 /* UnicodeIterator.swift in Sources */,
+				0E959C6C208B611F005F8D01 /* Legacy.swift in Sources */,
+				0E959C7C208B611F005F8D01 /* CSVReader.swift in Sources */,
 			);
 			runOnlyForDeploymentPostprocessing = 0;
 		};
@@ -520,8 +654,15 @@
 			isa = PBXSourcesBuildPhase;
 			buildActionMask = 2147483647;
 			files = (
-				0E7E8D041D0BCDDD0057A1C1 /* CSVTests.swift in Sources */,
+				0EDF8EE31DDB73530068056A /* ReadmeTests.swift in Sources */,
-				0E7E8D031D0BCDDD0057A1C1 /* CSVReaderTests.swift in Sources */,
+				3C8921A021484154004AA78A /* CSVRowDecoderTests.swift in Sources */,
+				0EDF8EE11DDB73530068056A /* CSVReaderTests.swift in Sources */,
+				0EDF8EE41DDB73530068056A /* TrimFieldsTests.swift in Sources */,
+				0E7F657D1EF6437E00E1E1A0 /* Version1Tests.swift in Sources */,
+				0EDF8EE51DDB73530068056A /* UnicodeTests.swift in Sources */,
+				0E87607D219D992900C6C7FA /* BinaryReaderTests.swift in Sources */,
+				0EDF8EE21DDB73530068056A /* LineBreakTests.swift in Sources */,
+				0E54021D1ED9DDF40019C3ED /* CSVWriterTests.swift in Sources */,
 			);
 			runOnlyForDeploymentPostprocessing = 0;
 		};
@@ -535,7 +676,7 @@
 		};
 		0E7E8CD21D0BCA2A0057A1C1 /* PBXTargetDependency */ = {
 			isa = PBXTargetDependency;
-			target = 0E7E8CC51D0BCA2A0057A1C1 /* CSV-OSX */;
+			target = 0E7E8CC51D0BCA2A0057A1C1 /* CSV-macOS */;
 			targetProxy = 0E7E8CD11D0BCA2A0057A1C1 /* PBXContainerItemProxy */;
 		};
 		0E7E8CF41D0BCD0B0057A1C1 /* PBXTargetDependency */ = {
@@ -550,18 +691,29 @@
 			isa = XCBuildConfiguration;
 			buildSettings = {
 				ALWAYS_SEARCH_USER_PATHS = NO;
+				CLANG_ANALYZER_LOCALIZABILITY_NONLOCALIZED = YES;
 				CLANG_ANALYZER_NONNULL = YES;
 				CLANG_CXX_LANGUAGE_STANDARD = "gnu++0x";
 				CLANG_CXX_LIBRARY = "libc++";
 				CLANG_ENABLE_MODULES = YES;
 				CLANG_ENABLE_OBJC_ARC = YES;
+				CLANG_WARN_BLOCK_CAPTURE_AUTORELEASING = YES;
 				CLANG_WARN_BOOL_CONVERSION = YES;
+				CLANG_WARN_COMMA = YES;
 				CLANG_WARN_CONSTANT_CONVERSION = YES;
+				CLANG_WARN_DEPRECATED_OBJC_IMPLEMENTATIONS = YES;
 				CLANG_WARN_DIRECT_OBJC_ISA_USAGE = YES_ERROR;
 				CLANG_WARN_EMPTY_BODY = YES;
 				CLANG_WARN_ENUM_CONVERSION = YES;
+				CLANG_WARN_INFINITE_RECURSION = YES;
 				CLANG_WARN_INT_CONVERSION = YES;
+				CLANG_WARN_NON_LITERAL_NULL_CONVERSION = YES;
+				CLANG_WARN_OBJC_IMPLICIT_RETAIN_SELF = YES;
+				CLANG_WARN_OBJC_LITERAL_CONVERSION = YES;
 				CLANG_WARN_OBJC_ROOT_CLASS = YES_ERROR;
+				CLANG_WARN_RANGE_LOOP_ANALYSIS = YES;
+				CLANG_WARN_STRICT_PROTOTYPES = YES;
+				CLANG_WARN_SUSPICIOUS_MOVE = YES;
 				CLANG_WARN_UNREACHABLE_CODE = YES;
 				CLANG_WARN__DUPLICATE_METHOD_MATCH = YES;
 				"CODE_SIGN_IDENTITY[sdk=iphoneos*]" = "iPhone Developer";
@@ -584,11 +736,13 @@
 				GCC_WARN_UNINITIALIZED_AUTOS = YES_AGGRESSIVE;
 				GCC_WARN_UNUSED_FUNCTION = YES;
 				GCC_WARN_UNUSED_VARIABLE = YES;
-				IPHONEOS_DEPLOYMENT_TARGET = 9.3;
+				IPHONEOS_DEPLOYMENT_TARGET = 8.0;
+				MACOSX_DEPLOYMENT_TARGET = 10.9;
 				MTL_ENABLE_DEBUG_INFO = YES;
 				ONLY_ACTIVE_ARCH = YES;
 				SDKROOT = iphoneos;
 				SWIFT_OPTIMIZATION_LEVEL = "-Onone";
+				SWIFT_VERSION = 5.0;
 				TARGETED_DEVICE_FAMILY = "1,2";
 				VERSIONING_SYSTEM = "apple-generic";
 				VERSION_INFO_PREFIX = "";
@@ -599,18 +753,29 @@
 			isa = XCBuildConfiguration;
 			buildSettings = {
 				ALWAYS_SEARCH_USER_PATHS = NO;
+				CLANG_ANALYZER_LOCALIZABILITY_NONLOCALIZED = YES;
 				CLANG_ANALYZER_NONNULL = YES;
 				CLANG_CXX_LANGUAGE_STANDARD = "gnu++0x";
 				CLANG_CXX_LIBRARY = "libc++";
 				CLANG_ENABLE_MODULES = YES;
 				CLANG_ENABLE_OBJC_ARC = YES;
+				CLANG_WARN_BLOCK_CAPTURE_AUTORELEASING = YES;
 				CLANG_WARN_BOOL_CONVERSION = YES;
+				CLANG_WARN_COMMA = YES;
 				CLANG_WARN_CONSTANT_CONVERSION = YES;
+				CLANG_WARN_DEPRECATED_OBJC_IMPLEMENTATIONS = YES;
 				CLANG_WARN_DIRECT_OBJC_ISA_USAGE = YES_ERROR;
 				CLANG_WARN_EMPTY_BODY = YES;
 				CLANG_WARN_ENUM_CONVERSION = YES;
+				CLANG_WARN_INFINITE_RECURSION = YES;
 				CLANG_WARN_INT_CONVERSION = YES;
+				CLANG_WARN_NON_LITERAL_NULL_CONVERSION = YES;
+				CLANG_WARN_OBJC_IMPLICIT_RETAIN_SELF = YES;
+				CLANG_WARN_OBJC_LITERAL_CONVERSION = YES;
 				CLANG_WARN_OBJC_ROOT_CLASS = YES_ERROR;
+				CLANG_WARN_RANGE_LOOP_ANALYSIS = YES;
+				CLANG_WARN_STRICT_PROTOTYPES = YES;
+				CLANG_WARN_SUSPICIOUS_MOVE = YES;
 				CLANG_WARN_UNREACHABLE_CODE = YES;
 				CLANG_WARN__DUPLICATE_METHOD_MATCH = YES;
 				"CODE_SIGN_IDENTITY[sdk=iphoneos*]" = "iPhone Developer";
@@ -627,9 +792,11 @@
 				GCC_WARN_UNINITIALIZED_AUTOS = YES_AGGRESSIVE;
 				GCC_WARN_UNUSED_FUNCTION = YES;
 				GCC_WARN_UNUSED_VARIABLE = YES;
-				IPHONEOS_DEPLOYMENT_TARGET = 9.3;
+				IPHONEOS_DEPLOYMENT_TARGET = 8.0;
+				MACOSX_DEPLOYMENT_TARGET = 10.9;
 				MTL_ENABLE_DEBUG_INFO = NO;
 				SDKROOT = iphoneos;
+				SWIFT_VERSION = 5.0;
 				TARGETED_DEVICE_FAMILY = "1,2";
 				VALIDATE_PRODUCT = YES;
 				VERSIONING_SYSTEM = "apple-generic";
@@ -640,6 +807,7 @@
 		0E7E8C961D0BC7BB0057A1C1 /* Debug */ = {
 			isa = XCBuildConfiguration;
 			buildSettings = {
+				"CODE_SIGN_IDENTITY[sdk=iphoneos*]" = "";
 				DEFINES_MODULE = YES;
 				DYLIB_COMPATIBILITY_VERSION = 1;
 				DYLIB_CURRENT_VERSION = 1;
@@ -648,6 +816,7 @@
 				INSTALL_PATH = "$(LOCAL_LIBRARY_DIR)/Frameworks";
 				IPHONEOS_DEPLOYMENT_TARGET = 8.0;
 				LD_RUNPATH_SEARCH_PATHS = "$(inherited) @executable_path/Frameworks @loader_path/Frameworks";
+				MARKETING_VERSION = 2.4.3;
 				PRODUCT_BUNDLE_IDENTIFIER = net.yaslab.CSV;
 				PRODUCT_NAME = CSV;
 				SKIP_INSTALL = YES;
@@ -657,6 +826,7 @@
 		0E7E8C971D0BC7BB0057A1C1 /* Release */ = {
 			isa = XCBuildConfiguration;
 			buildSettings = {
+				"CODE_SIGN_IDENTITY[sdk=iphoneos*]" = "";
 				DEFINES_MODULE = YES;
 				DYLIB_COMPATIBILITY_VERSION = 1;
 				DYLIB_CURRENT_VERSION = 1;
@@ -665,15 +835,18 @@
 				INSTALL_PATH = "$(LOCAL_LIBRARY_DIR)/Frameworks";
 				IPHONEOS_DEPLOYMENT_TARGET = 8.0;
 				LD_RUNPATH_SEARCH_PATHS = "$(inherited) @executable_path/Frameworks @loader_path/Frameworks";
+				MARKETING_VERSION = 2.4.3;
 				PRODUCT_BUNDLE_IDENTIFIER = net.yaslab.CSV;
 				PRODUCT_NAME = CSV;
 				SKIP_INSTALL = YES;
+				SWIFT_OPTIMIZATION_LEVEL = "-Owholemodule";
 			};
 			name = Release;
 		};
 		0E7E8C991D0BC7BB0057A1C1 /* Debug */ = {
 			isa = XCBuildConfiguration;
 			buildSettings = {
+				ALWAYS_EMBED_SWIFT_STANDARD_LIBRARIES = YES;
 				INFOPLIST_FILE = Tests/Info.plist;
 				LD_RUNPATH_SEARCH_PATHS = "$(inherited) @executable_path/Frameworks @loader_path/Frameworks";
 				PRODUCT_BUNDLE_IDENTIFIER = "net.yaslab.CSVTests-iOS";
@@ -684,10 +857,12 @@
 		0E7E8C9A1D0BC7BB0057A1C1 /* Release */ = {
 			isa = XCBuildConfiguration;
 			buildSettings = {
+				ALWAYS_EMBED_SWIFT_STANDARD_LIBRARIES = YES;
 				INFOPLIST_FILE = Tests/Info.plist;
 				LD_RUNPATH_SEARCH_PATHS = "$(inherited) @executable_path/Frameworks @loader_path/Frameworks";
 				PRODUCT_BUNDLE_IDENTIFIER = "net.yaslab.CSVTests-iOS";
 				PRODUCT_NAME = "$(TARGET_NAME)";
+				SWIFT_OPTIMIZATION_LEVEL = "-Owholemodule";
 			};
 			name = Release;
 		};
@@ -695,6 +870,7 @@
 			isa = XCBuildConfiguration;
 			buildSettings = {
 				APPLICATION_EXTENSION_API_ONLY = YES;
+				"CODE_SIGN_IDENTITY[sdk=watchos*]" = "";
 				DEFINES_MODULE = YES;
 				DYLIB_COMPATIBILITY_VERSION = 1;
 				DYLIB_CURRENT_VERSION = 1;
@@ -702,6 +878,7 @@
 				INFOPLIST_FILE = Sources/Info.plist;
 				INSTALL_PATH = "$(LOCAL_LIBRARY_DIR)/Frameworks";
 				LD_RUNPATH_SEARCH_PATHS = "$(inherited) @executable_path/Frameworks @loader_path/Frameworks";
+				MARKETING_VERSION = 2.4.3;
 				PRODUCT_BUNDLE_IDENTIFIER = net.yaslab.CSV;
 				PRODUCT_NAME = CSV;
 				SDKROOT = watchos;
@@ -715,6 +892,7 @@
 			isa = XCBuildConfiguration;
 			buildSettings = {
 				APPLICATION_EXTENSION_API_ONLY = YES;
+				"CODE_SIGN_IDENTITY[sdk=watchos*]" = "";
 				DEFINES_MODULE = YES;
 				DYLIB_COMPATIBILITY_VERSION = 1;
 				DYLIB_CURRENT_VERSION = 1;
@@ -722,10 +900,12 @@
 				INFOPLIST_FILE = Sources/Info.plist;
 				INSTALL_PATH = "$(LOCAL_LIBRARY_DIR)/Frameworks";
 				LD_RUNPATH_SEARCH_PATHS = "$(inherited) @executable_path/Frameworks @loader_path/Frameworks";
+				MARKETING_VERSION = 2.4.3;
 				PRODUCT_BUNDLE_IDENTIFIER = net.yaslab.CSV;
 				PRODUCT_NAME = CSV;
 				SDKROOT = watchos;
 				SKIP_INSTALL = YES;
+				SWIFT_OPTIMIZATION_LEVEL = "-Owholemodule";
 				TARGETED_DEVICE_FAMILY = 4;
 				WATCHOS_DEPLOYMENT_TARGET = 2.0;
 			};
@@ -745,6 +925,7 @@
 				INSTALL_PATH = "$(LOCAL_LIBRARY_DIR)/Frameworks";
 				LD_RUNPATH_SEARCH_PATHS = "$(inherited) @executable_path/../Frameworks @loader_path/Frameworks";
 				MACOSX_DEPLOYMENT_TARGET = 10.9;
+				MARKETING_VERSION = 2.4.3;
 				PRODUCT_BUNDLE_IDENTIFIER = net.yaslab.CSV;
 				PRODUCT_NAME = CSV;
 				SDKROOT = macosx;
@@ -766,22 +947,25 @@
 				INSTALL_PATH = "$(LOCAL_LIBRARY_DIR)/Frameworks";
 				LD_RUNPATH_SEARCH_PATHS = "$(inherited) @executable_path/../Frameworks @loader_path/Frameworks";
 				MACOSX_DEPLOYMENT_TARGET = 10.9;
+				MARKETING_VERSION = 2.4.3;
 				PRODUCT_BUNDLE_IDENTIFIER = net.yaslab.CSV;
 				PRODUCT_NAME = CSV;
 				SDKROOT = macosx;
 				SKIP_INSTALL = YES;
+				SWIFT_OPTIMIZATION_LEVEL = "-Owholemodule";
 			};
 			name = Release;
 		};
 		0E7E8CDB1D0BCA2A0057A1C1 /* Debug */ = {
 			isa = XCBuildConfiguration;
 			buildSettings = {
+				ALWAYS_EMBED_SWIFT_STANDARD_LIBRARIES = YES;
 				CODE_SIGN_IDENTITY = "-";
 				COMBINE_HIDPI_IMAGES = YES;
 				INFOPLIST_FILE = Tests/Info.plist;
 				LD_RUNPATH_SEARCH_PATHS = "$(inherited) @executable_path/../Frameworks @loader_path/../Frameworks";
 				MACOSX_DEPLOYMENT_TARGET = 10.11;
-				PRODUCT_BUNDLE_IDENTIFIER = "net.yaslab.CSVTests-OSX";
+				PRODUCT_BUNDLE_IDENTIFIER = "net.yaslab.CSVTests-macOS";
 				PRODUCT_NAME = "$(TARGET_NAME)";
 				SDKROOT = macosx;
 			};
@@ -790,20 +974,23 @@
 		0E7E8CDC1D0BCA2A0057A1C1 /* Release */ = {
 			isa = XCBuildConfiguration;
 			buildSettings = {
+				ALWAYS_EMBED_SWIFT_STANDARD_LIBRARIES = YES;
 				CODE_SIGN_IDENTITY = "-";
 				COMBINE_HIDPI_IMAGES = YES;
 				INFOPLIST_FILE = Tests/Info.plist;
 				LD_RUNPATH_SEARCH_PATHS = "$(inherited) @executable_path/../Frameworks @loader_path/../Frameworks";
 				MACOSX_DEPLOYMENT_TARGET = 10.11;
-				PRODUCT_BUNDLE_IDENTIFIER = "net.yaslab.CSVTests-OSX";
+				PRODUCT_BUNDLE_IDENTIFIER = "net.yaslab.CSVTests-macOS";
 				PRODUCT_NAME = "$(TARGET_NAME)";
 				SDKROOT = macosx;
+				SWIFT_OPTIMIZATION_LEVEL = "-Owholemodule";
 			};
 			name = Release;
 		};
 		0E7E8CFA1D0BCD0B0057A1C1 /* Debug */ = {
 			isa = XCBuildConfiguration;
 			buildSettings = {
+				"CODE_SIGN_IDENTITY[sdk=appletvos*]" = "";
 				DEFINES_MODULE = YES;
 				DYLIB_COMPATIBILITY_VERSION = 1;
 				DYLIB_CURRENT_VERSION = 1;
@@ -811,6 +998,7 @@
 				INFOPLIST_FILE = Sources/Info.plist;
 				INSTALL_PATH = "$(LOCAL_LIBRARY_DIR)/Frameworks";
 				LD_RUNPATH_SEARCH_PATHS = "$(inherited) @executable_path/Frameworks @loader_path/Frameworks";
+				MARKETING_VERSION = 2.4.3;
 				PRODUCT_BUNDLE_IDENTIFIER = net.yaslab.CSV;
 				PRODUCT_NAME = CSV;
 				SDKROOT = appletvos;
@@ -823,6 +1011,7 @@
 		0E7E8CFB1D0BCD0B0057A1C1 /* Release */ = {
 			isa = XCBuildConfiguration;
 			buildSettings = {
+				"CODE_SIGN_IDENTITY[sdk=appletvos*]" = "";
 				DEFINES_MODULE = YES;
 				DYLIB_COMPATIBILITY_VERSION = 1;
 				DYLIB_CURRENT_VERSION = 1;
@@ -830,10 +1019,12 @@
 				INFOPLIST_FILE = Sources/Info.plist;
 				INSTALL_PATH = "$(LOCAL_LIBRARY_DIR)/Frameworks";
 				LD_RUNPATH_SEARCH_PATHS = "$(inherited) @executable_path/Frameworks @loader_path/Frameworks";
+				MARKETING_VERSION = 2.4.3;
 				PRODUCT_BUNDLE_IDENTIFIER = net.yaslab.CSV;
 				PRODUCT_NAME = CSV;
 				SDKROOT = appletvos;
 				SKIP_INSTALL = YES;
+				SWIFT_OPTIMIZATION_LEVEL = "-Owholemodule";
 				TARGETED_DEVICE_FAMILY = 3;
 				TVOS_DEPLOYMENT_TARGET = 9.0;
 			};
@@ -842,6 +1033,7 @@
 		0E7E8CFD1D0BCD0B0057A1C1 /* Debug */ = {
 			isa = XCBuildConfiguration;
 			buildSettings = {
+				ALWAYS_EMBED_SWIFT_STANDARD_LIBRARIES = YES;
 				INFOPLIST_FILE = Tests/Info.plist;
 				LD_RUNPATH_SEARCH_PATHS = "$(inherited) @executable_path/Frameworks @loader_path/Frameworks";
 				PRODUCT_BUNDLE_IDENTIFIER = "net.yaslab.CSVTests-tvOS";
@@ -854,11 +1046,13 @@
 		0E7E8CFE1D0BCD0B0057A1C1 /* Release */ = {
 			isa = XCBuildConfiguration;
 			buildSettings = {
+				ALWAYS_EMBED_SWIFT_STANDARD_LIBRARIES = YES;
 				INFOPLIST_FILE = Tests/Info.plist;
 				LD_RUNPATH_SEARCH_PATHS = "$(inherited) @executable_path/Frameworks @loader_path/Frameworks";
 				PRODUCT_BUNDLE_IDENTIFIER = "net.yaslab.CSVTests-tvOS";
 				PRODUCT_NAME = "$(TARGET_NAME)";
 				SDKROOT = appletvos;
+				SWIFT_OPTIMIZATION_LEVEL = "-Owholemodule";
 				TVOS_DEPLOYMENT_TARGET = 9.2;
 			};
 			name = Release;
@@ -902,7 +1096,7 @@
 			defaultConfigurationIsVisible = 0;
 			defaultConfigurationName = Release;
 		};
-		0E7E8CD71D0BCA2A0057A1C1 /* Build configuration list for PBXNativeTarget "CSV-OSX" */ = {
+		0E7E8CD71D0BCA2A0057A1C1 /* Build configuration list for PBXNativeTarget "CSV-macOS" */ = {
 			isa = XCConfigurationList;
 			buildConfigurations = (
 				0E7E8CD81D0BCA2A0057A1C1 /* Debug */,
@@ -911,7 +1105,7 @@
 			defaultConfigurationIsVisible = 0;
 			defaultConfigurationName = Release;
 		};
-		0E7E8CDA1D0BCA2A0057A1C1 /* Build configuration list for PBXNativeTarget "CSVTests-OSX" */ = {
+		0E7E8CDA1D0BCA2A0057A1C1 /* Build configuration list for PBXNativeTarget "CSVTests-macOS" */ = {
 			isa = XCConfigurationList;
 			buildConfigurations = (
 				0E7E8CDB1D0BCA2A0057A1C1 /* Debug */,

CSV.xcodeproj/project.xcworkspace/xcshareddata/IDEWorkspaceChecks.plist

@@ -0,0 +1,8 @@
+<?xml version="1.0" encoding="UTF-8"?>
+<!DOCTYPE plist PUBLIC "-//Apple//DTD PLIST 1.0//EN" "http://www.apple.com/DTDs/PropertyList-1.0.dtd">
+<plist version="1.0">
+<dict>
+	<key>IDEDidComputeMac32BitWarning</key>
+	<true/>
+</dict>
+</plist>

CSV.xcodeproj/xcshareddata/xcschemes/CSV-iOS.xcscheme

@@ -1,6 +1,6 @@
 <?xml version="1.0" encoding="UTF-8"?>
 <Scheme
-   LastUpgradeVersion = "0730"
+   LastUpgradeVersion = "1020"
    version = "1.3">
    <BuildAction
       parallelizeBuildables = "YES"
@@ -26,6 +26,7 @@
       buildConfiguration = "Debug"
       selectedDebuggerIdentifier = "Xcode.DebuggerFoundation.Debugger.LLDB"
       selectedLauncherIdentifier = "Xcode.DebuggerFoundation.Launcher.LLDB"
+      codeCoverageEnabled = "YES"
       shouldUseLaunchSchemeArgsEnv = "YES">
       <Testables>
          <TestableReference

CSV.xcodeproj/xcshareddata/xcschemes/CSV-macOS.xcscheme

@@ -1,6 +1,6 @@
 <?xml version="1.0" encoding="UTF-8"?>
 <Scheme
-   LastUpgradeVersion = "0730"
+   LastUpgradeVersion = "1020"
    version = "1.3">
    <BuildAction
       parallelizeBuildables = "YES"
@@ -16,7 +16,7 @@
                BuildableIdentifier = "primary"
                BlueprintIdentifier = "0E7E8CC51D0BCA2A0057A1C1"
                BuildableName = "CSV.framework"
-               BlueprintName = "CSV-OSX"
+               BlueprintName = "CSV-macOS"
                ReferencedContainer = "container:CSV.xcodeproj">
             </BuildableReference>
          </BuildActionEntry>
@@ -26,6 +26,7 @@
       buildConfiguration = "Debug"
       selectedDebuggerIdentifier = "Xcode.DebuggerFoundation.Debugger.LLDB"
       selectedLauncherIdentifier = "Xcode.DebuggerFoundation.Launcher.LLDB"
+      codeCoverageEnabled = "YES"
       shouldUseLaunchSchemeArgsEnv = "YES">
       <Testables>
          <TestableReference
@@ -33,8 +34,8 @@
             <BuildableReference
                BuildableIdentifier = "primary"
                BlueprintIdentifier = "0E7E8CCE1D0BCA2A0057A1C1"
-               BuildableName = "CSVTests-OSX.xctest"
+               BuildableName = "CSVTests-macOS.xctest"
-               BlueprintName = "CSVTests-OSX"
+               BlueprintName = "CSVTests-macOS"
                ReferencedContainer = "container:CSV.xcodeproj">
             </BuildableReference>
          </TestableReference>
@@ -44,7 +45,7 @@
             BuildableIdentifier = "primary"
             BlueprintIdentifier = "0E7E8CC51D0BCA2A0057A1C1"
             BuildableName = "CSV.framework"
-            BlueprintName = "CSV-OSX"
+            BlueprintName = "CSV-macOS"
             ReferencedContainer = "container:CSV.xcodeproj">
          </BuildableReference>
       </MacroExpansion>
@@ -66,7 +67,7 @@
             BuildableIdentifier = "primary"
             BlueprintIdentifier = "0E7E8CC51D0BCA2A0057A1C1"
             BuildableName = "CSV.framework"
-            BlueprintName = "CSV-OSX"
+            BlueprintName = "CSV-macOS"
             ReferencedContainer = "container:CSV.xcodeproj">
          </BuildableReference>
       </MacroExpansion>
@@ -84,7 +85,7 @@
             BuildableIdentifier = "primary"
             BlueprintIdentifier = "0E7E8CC51D0BCA2A0057A1C1"
             BuildableName = "CSV.framework"
-            BlueprintName = "CSV-OSX"
+            BlueprintName = "CSV-macOS"
             ReferencedContainer = "container:CSV.xcodeproj">
          </BuildableReference>
       </MacroExpansion>

CSV.xcodeproj/xcshareddata/xcschemes/CSV-tvOS.xcscheme

@@ -1,6 +1,6 @@
 <?xml version="1.0" encoding="UTF-8"?>
 <Scheme
-   LastUpgradeVersion = "0730"
+   LastUpgradeVersion = "1020"
    version = "1.3">
    <BuildAction
       parallelizeBuildables = "YES"

CSV.xcodeproj/xcshareddata/xcschemes/CSV-watchOS.xcscheme

@@ -1,6 +1,6 @@
 <?xml version="1.0" encoding="UTF-8"?>
 <Scheme
-   LastUpgradeVersion = "0730"
+   LastUpgradeVersion = "1020"
    version = "1.3">
    <BuildAction
       parallelizeBuildables = "YES"

Package.swift

@@ -1,7 +1,15 @@
+// swift-tools-version:5.0
+
 import PackageDescription
 
 let package = Package(
-    name: "CSV",
+    name: "CSV.swift",
-    targets: [],
+    products: [
-    dependencies: []
+        .library(name: "CSV", targets: ["CSV"])
+    ],
+    targets: [
+        .target(name: "CSV"),
+        .testTarget(name: "CSVTests", dependencies: ["CSV"])
+    ],
+    swiftLanguageVersions: [.v5]
 )

README.md

@@ -1,28 +1,38 @@
 # CSV.swift
 
-CSV reading library written in Swift.
+[![Build Status](https://travis-ci.org/yaslab/CSV.swift.svg?branch=master)](https://travis-ci.org/yaslab/CSV.swift)
+[![codecov](https://codecov.io/gh/yaslab/CSV.swift/branch/master/graph/badge.svg)](https://codecov.io/gh/yaslab/CSV.swift)
+[![Open Source Helpers](https://www.codetriage.com/yaslab/csv.swift/badges/users.svg)](https://www.codetriage.com/yaslab/csv.swift)
 
-## Usage
+CSV reading and writing library written in Swift.
 
-### From CSV string
+## Usage for reading CSV
+
+### From string
 
 ```swift
 import CSV
 
-let csvString = "1,\"foo\"\n2,\"bar\""
+let csvString = "1,foo\n2,bar"
-for row in try! CSV(string: csvString) {
+let csv = try! CSVReader(string: csvString)
+while let row = csv.next() {
     print("\(row)")
-    // => ["1", "foo"]
-    // => ["2", "bar"]
 }
+// => ["1", "foo"]
+// => ["2", "bar"]
 ```
 
-### From file path
+### From file
+
+NOTE: The default character encoding is `UTF8`.
 
 ```swift
+import Foundation
 import CSV
 
-for row in try! CSV(path: "/path/to/file.csv") {
+let stream = InputStream(fileAtPath: "/path/to/file.csv")!
+let csv = try! CSVReader(stream: stream)
+while let row = csv.next() {
     print("\(row)")
 }
 ```
@@ -30,14 +40,34 @@ for row in try! CSV(path: "/path/to/file.csv") {
 ### Getting the header row
 
 ```swift
-let csv = try! CSV(
+import CSV
-    path: "/path/to/file.csv",
+
-    hasHeaderRow: true) // default: false
+let csvString = "id,name\n1,foo\n2,bar"
+let csv = try! CSVReader(string: csvString,
+                         hasHeaderRow: true) // It must be true.
 
 let headerRow = csv.headerRow!
+print("\(headerRow)") // => ["id", "name"]
 
-for row in csv {
+while let row = csv.next() {
-    // ...
+    print("\(row)")
+}
+// => ["1", "foo"]
+// => ["2", "bar"]
+```
+
+### Get the field value using subscript
+
+```swift
+import CSV
+
+let csvString = "id,name\n1,foo"
+let csv = try! CSVReader(string: csvString,
+                         hasHeaderRow: true) // It must be true.
+
+while csv.next() != nil {
+    print("\(csv["id"]!)")   // => "1"
+    print("\(csv["name"]!)") // => "foo"
 }
 ```
 
@@ -46,9 +76,92 @@ for row in csv {
 If you use a file path, you can provide the character encoding to initializer.
 
 ```swift
-let csv = try! CSV(
+import Foundation
-    path: "/path/to/file.csv",
+import CSV
-    encoding: NSUTF8StringEncoding)
+
+let stream = InputStream(fileAtPath: "/path/to/file.csv")!
+let csv = try! CSVReader(stream: stream,
+                         codecType: UTF16.self,
+                         endian: .big)
+```
+
+### Reading a row into a Decodable object
+
+If you have a destination object that conforms to the `Decodable` protocol, you can serialize a row with a new instances of the object.
+
+```swift
+struct DecodableExample: Decodable {
+    let intKey: Int
+    let stringKey: String
+    let optionalStringKey: String?
+}
+
+let csv = """
+    intKey,stringKey,optionalStringKey
+    1234,abcd,
+    """
+
+var records = [DecodableExample]()
+do {
+    let reader = try CSVReader(string: csv, hasHeaderRow: true)
+    let decoder = CSVRowDecoder()
+    while reader.next() != nil {
+        let row = try decoder.decode(DecodableExample.self, from: reader)
+        records.append(row)
+    }
+} catch {
+    // Invalid row format
+}
+```
+
+## Usage for writing CSV
+
+### Write to memory and get a CSV String
+
+NOTE: The default character encoding is `UTF8`.
+
+```swift
+import Foundation
+import CSV
+
+let csv = try! CSVWriter(stream: .toMemory())
+
+// Write a row
+try! csv.write(row: ["id", "name"])
+
+// Write fields separately
+csv.beginNewRow()
+try! csv.write(field: "1")
+try! csv.write(field: "foo")
+csv.beginNewRow()
+try! csv.write(field: "2")
+try! csv.write(field: "bar")
+
+csv.stream.close()
+
+// Get a String
+let csvData = csv.stream.property(forKey: .dataWrittenToMemoryStreamKey) as! Data
+let csvString = String(data: csvData, encoding: .utf8)!
+print(csvString)
+// => "id,name\n1,foo\n2,bar"
+```
+
+### Write to file
+
+NOTE: The default character encoding is `UTF8`.
+
+```swift
+import Foundation
+import CSV
+
+let stream = OutputStream(toFileAtPath: "/path/to/file.csv", append: false)!
+let csv = try! CSVWriter(stream: stream)
+
+try! csv.write(row: ["id", "name"])
+try! csv.write(row: ["1", "foo"])
+try! csv.write(row: ["1", "bar"])
+
+csv.stream.close()
 ```
 
 ## Installation
@@ -56,28 +169,25 @@ let csv = try! CSV(
 ### CocoaPods
 
 ```ruby
-pod 'CSV.swift', '~> 0.1'
+pod 'CSV.swift', '~> 2.4.3'
 ```
 
 ### Carthage
 
 ```
-github "yaslab/CSV.swift" ~> 0.1
+github "yaslab/CSV.swift" ~> 2.4.3
 ```
 
 ### Swift Package Manager
 
 ```swift
-import PackageDescription
+.package(url: "https://github.com/yaslab/CSV.swift.git", .upToNextMinor(from: "2.4.3"))
-
-let package = Package(
-    name: "PackageName",
-    dependencies: [
-        .Package(url: "https://github.com/yaslab/CSV.swift", majorVersion: 0, minor: 1)
-    ]
-)
 ```
 
+## Reference specification
+
+- [RFC4180](http://www.ietf.org/rfc/rfc4180.txt) ([en](http://www.ietf.org/rfc/rfc4180.txt), [ja](http://www.kasai.fm/wiki/rfc4180jp))
+
 ## License
 
-CSV.swift is released under the MIT license. See the LICENSE file for more info.
+CSV.swift is released under the MIT license. See the [LICENSE](https://github.com/yaslab/CSV.swift/blob/master/LICENSE) file for more info.

Sources/ByteOrder.swift

@@ -1,37 +0,0 @@
-//
-//  ByteOrder.swift
-//  CSV
-//
-//  Created by Yasuhiro Hatta on 2016/06/11.
-//
-//
-
-import CoreFoundation
-
-internal func ReadBigInt16(base: UnsafePointer<Void>, byteOffset: Int) -> UInt16 {
-    let bytes = UnsafePointer<UInt8>(base).advancedBy(byteOffset)
-    let int16Array = UnsafePointer<UInt16>(bytes)
-    return CFSwapInt16BigToHost(int16Array[0])
-}
-
-internal func ReadBigInt32(base: UnsafePointer<Void>, byteOffset: Int) -> UInt32 {
-    let bytes = UnsafePointer<UInt8>(base).advancedBy(byteOffset)
-    let int32Array = UnsafePointer<UInt32>(bytes)
-    return CFSwapInt32BigToHost(int32Array[0])
-}
-
-internal func ReadLittleInt16(base: UnsafePointer<Void>, byteOffset: Int) -> UInt16 {
-    let bytes = UnsafePointer<UInt8>(base).advancedBy(byteOffset)
-    let int16Array = UnsafePointer<UInt16>(bytes)
-    return CFSwapInt16LittleToHost(int16Array[0])
-}
-
-internal func ReadLittleInt32(base: UnsafePointer<Void>, byteOffset: Int) -> UInt32 {
-    let bytes = UnsafePointer<UInt8>(base).advancedBy(byteOffset)
-    let int32Array = UnsafePointer<UInt32>(bytes)
-    return CFSwapInt32LittleToHost(int32Array[0])
-}
-
-internal func IsBigEndian() -> Bool {
-    return CFByteOrderGetCurrent() == CFByteOrder(CFByteOrderBigEndian.rawValue)
-}

Sources/CSV.swift

@@ -1,391 +0,0 @@
-//
-//  CSV.swift
-//  CSV
-//
-//  Created by Yasuhiro Hatta on 2016/06/11.
-//
-//
-
-import Foundation
-
-private let LF: UInt32 = 0x0a //'\n'
-private let CR: UInt32 = 0x0d //'\r'
-private let DQUOTE: UInt32 = 0x22 //'"'
-
-internal let defaultHasHeaderRow = false
-internal let defaultEncoding = NSUTF8StringEncoding
-internal let defaultDelimiter: CChar = 0x2c //','
-internal let defaultBufferSize = 8192
-
-internal let utf8BOM: [UInt8] = [0xef, 0xbb, 0xbf]
-internal let utf16BigEndianBOM: [UInt8] = [0xfe, 0xff]
-internal let utf16LittleEndianBOM: [UInt8] = [0xff, 0xfe]
-internal let utf32BigEndianBOM: [UInt8] = [0x00, 0x00, 0xfe, 0xff]
-internal let utf32LittleEndianBOM: [UInt8] = [0xff, 0xfe, 0x00, 0x00]
-
-public class CSV: SequenceType, GeneratorType {
-
-    private let stream: NSInputStream
-    private let encoding: NSStringEncoding
-    private let delimiter: UInt32
-    private let bufferSize: Int
-
-    private var buffer: UnsafeMutablePointer<UInt8>!
-    private var bufferOffset: Int
-    private var lastReadCount: Int
-
-    private let charWidth: Int
-
-    private let fieldBuffer: NSMutableData
-    private var _headerRow: [String]? = nil
-    private var _currentRow: [String]? = nil
-
-    private var closed: Bool = false
-    
-    public private(set) var lastError: CSVError? = nil
-
-    public init(
-        stream: NSInputStream,
-        hasHeaderRow: Bool = defaultHasHeaderRow,
-        encoding: NSStringEncoding = defaultEncoding,
-        delimiter: CChar = defaultDelimiter,
-        bufferSize: Int = defaultBufferSize)
-        throws
-    {
-        self.stream = stream
-
-        var bs = bufferSize
-        if bs < 0 {
-            throw CSVError.ParameterError
-        }
-        if bs < 8 {
-            bs = 8
-        }
-        self.bufferSize = bs + (4 - (bs % 4))
-
-        self.delimiter = UInt32(delimiter)
-
-        let b = malloc(bufferSize)
-        if b == nil {
-            throw CSVError.MemoryAllocationFailed
-        }
-        self.buffer = UnsafeMutablePointer<UInt8>(b)
-        self.bufferOffset = 0
-
-        self.fieldBuffer = NSMutableData()
-
-        if stream.streamStatus == .NotOpen {
-            stream.open()
-        }
-        if stream.streamStatus != .Open {
-            throw CSVError.StreamError
-        }
-
-        self.lastReadCount = stream.read(self.buffer, maxLength: bufferSize)
-
-        var e = encoding
-
-        switch encoding {
-        case NSUTF16StringEncoding,
-             NSUTF16BigEndianStringEncoding,
-             NSUTF16LittleEndianStringEncoding:
-
-            charWidth = 2
-            if encoding == NSUTF16StringEncoding {
-                let nativeEndian = IsBigEndian()
-                    ? NSUTF16BigEndianStringEncoding
-                    : NSUTF16LittleEndianStringEncoding
-                e = nativeEndian
-                if lastReadCount >= charWidth {
-                    if memcmp(buffer, utf16BigEndianBOM, charWidth) == 0 {
-                        e = NSUTF16BigEndianStringEncoding
-                        self.bufferOffset += charWidth
-                    }
-                    else if memcmp(buffer, utf16LittleEndianBOM, charWidth) == 0 {
-                        e = NSUTF16LittleEndianStringEncoding
-                        self.bufferOffset += charWidth
-                    }
-                }
-            }
-
-        case NSUTF32StringEncoding,
-             NSUTF32BigEndianStringEncoding,
-             NSUTF32LittleEndianStringEncoding:
-
-            charWidth = 4
-            if encoding == NSUTF32StringEncoding {
-                let nativeEndian = IsBigEndian()
-                    ? NSUTF32BigEndianStringEncoding
-                    : NSUTF32LittleEndianStringEncoding
-                e = nativeEndian
-                if lastReadCount >= charWidth {
-                    if memcmp(buffer, utf32BigEndianBOM, charWidth) == 0 {
-                        e = NSUTF32BigEndianStringEncoding
-                        self.bufferOffset += charWidth
-                    }
-                    else if memcmp(buffer, utf32LittleEndianBOM, charWidth) == 0 {
-                        e = NSUTF32LittleEndianStringEncoding
-                        self.bufferOffset += charWidth
-                    }
-                }
-            }
-
-        default:
-            charWidth = 1
-            if encoding == NSUTF8StringEncoding {
-                let bomSize = 3
-                if lastReadCount >= bomSize {
-                    if memcmp(buffer, utf8BOM, charWidth) == 0 {
-                        self.bufferOffset += bomSize
-                    }
-                }
-            }
-        }
-
-        self.encoding = e
-
-        if hasHeaderRow {
-            guard let nextRow = next() else {
-                throw CSVError.HeaderReadError
-            }
-            _headerRow = nextRow
-            _currentRow = nil
-        }
-    }
-
-    deinit {
-        close()
-    }
-
-    public func close() {
-        if !closed {
-            stream.close()
-            if buffer != nil {
-                free(buffer)
-                buffer = nil
-            }
-            _headerRow = nil
-            _currentRow = nil
-            closed = true
-        }
-    }
-
-    public var headerRow: [String]? {
-        return _headerRow
-    }
-
-    public var currentRow: [String]? {
-        return _currentRow
-    }
-
-    // MARK: GeneratorType
-    
-    public func next() -> [String]? {
-        fieldBuffer.length = 0
-        _currentRow = nil
-        
-        if closed {
-            return nil
-        }
-        if lastReadCount <= 0 {
-            return nil
-        }
-
-        var fields = [String]()
-
-        var fieldStart = bufferOffset
-        var charLength = 0
-        var escaping = false
-        var quotationCount = 0
-
-        var prev: UInt32 = 0
-
-        while true {
-            if bufferOffset >= lastReadCount {
-                if charLength > 0 {
-                    fieldBuffer.appendBytes(buffer + fieldStart, length: charWidth * charLength)
-                }
-                bufferOffset = 0
-                fieldStart = 0
-                charLength = 0
-
-                lastReadCount = stream.read(buffer, maxLength: bufferSize)
-                if lastReadCount < 0 {
-                    // bad end
-                    lastError = CSVError.StreamError
-                    return nil
-                }
-                if lastReadCount == 0 {
-                    // true end
-                    break
-                }
-            }
-
-            var c: UInt32 = 0
-
-            switch encoding {
-            case NSUTF16BigEndianStringEncoding:
-                let _c = ReadBigInt16(buffer, byteOffset: bufferOffset)
-                c = UInt32(_c)
-
-            case NSUTF16LittleEndianStringEncoding:
-                let _c = ReadLittleInt16(buffer, byteOffset: bufferOffset)
-                c = UInt32(_c)
-
-            case NSUTF32BigEndianStringEncoding:
-                c = ReadBigInt32(buffer, byteOffset: bufferOffset)
-
-            case NSUTF32LittleEndianStringEncoding:
-                c = ReadLittleInt32(buffer, byteOffset: bufferOffset)
-
-            default: // multi-byte character encodings
-                let _c = (buffer + bufferOffset)[0]
-                c = UInt32(_c)
-            }
-
-            if c == DQUOTE {
-                quotationCount += 1
-            }
-
-            if c == DQUOTE && charLength == 0 {
-                escaping = true
-            }
-
-            if c == delimiter && prev == DQUOTE && (quotationCount % 2 == 0) {
-                escaping = false
-            }
-
-            // 行の終わり
-            if prev == CR && c != LF && !escaping {
-                fieldBuffer.appendBytes(buffer + fieldStart, length: charWidth * charLength)
-                break
-            }
-
-            // 行の終わり
-            if c == LF && !escaping {
-                fieldBuffer.appendBytes(buffer + fieldStart, length: charWidth * charLength)
-                bufferOffset += charWidth
-                break
-            }
-
-            prev = c
-
-            // 行の終わり
-            if c == CR && !escaping {
-                bufferOffset += charWidth
-                continue
-            }
-
-            bufferOffset += charWidth
-
-            // フィールドの終わり
-            if c == delimiter && !escaping {
-                fieldBuffer.appendBytes(buffer + fieldStart, length: charWidth * charLength)
-
-                guard let field = getField(quotationCount) else {
-                    return nil
-                }
-                fields.append(field)
-
-                // reset
-                fieldBuffer.length = 0
-                quotationCount = 0
-                charLength = 0
-
-                fieldStart = bufferOffset
-            }
-            else {
-                charLength += 1
-            }
-        }
-
-        guard let field = getField(quotationCount) else {
-            return nil
-        }
-
-        // 最後の空行
-        if isBufferEOF && fields.count == 0 && field.isEmpty {
-            return nil
-        }
-
-        fields.append(field)
-        _currentRow = fields
-
-        return fields
-    }
-    
-    // MARK: Utility
-
-    private var isBufferEOF: Bool {
-        if stream.hasBytesAvailable {
-            return false
-        }
-        return bufferOffset >= (lastReadCount - 1)
-    }
-
-    private func getField(quotationCount: Int) -> String? {
-        guard var field = String(data: fieldBuffer, encoding: encoding) else {
-            lastError = CSVError.StringEncodingMismatch
-            return nil
-        }
-
-        if quotationCount >= 2
-            && field.hasPrefix("\"")
-            && field.hasSuffix("\"")
-        {
-            //let start = field.index(field.startIndex, offsetBy: 1)
-            //let end = field.index(field.endIndex, offsetBy: -1)
-            let start = field.startIndex.advancedBy(1)
-            let end = field.endIndex.advancedBy(-1)
-            field = field[start..<end]
-        }
-
-        if quotationCount >= 4 {
-            field = field.stringByReplacingOccurrencesOfString("\"\"", withString: "\"")
-        }
-
-        return field
-    }
-
-}
-
-extension CSV {
-    
-    public convenience init(
-        path: String,
-        hasHeaderRow: Bool = defaultHasHeaderRow,
-        encoding: NSStringEncoding = defaultEncoding)
-        throws
-    {
-        guard let stream = NSInputStream(fileAtPath: path) else {
-            throw CSVError.StreamError
-        }
-        try self.init(stream: stream, hasHeaderRow: hasHeaderRow, encoding: encoding)
-    }
-    
-    public convenience init(
-        url: NSURL,
-        hasHeaderRow: Bool = defaultHasHeaderRow,
-        encoding: NSStringEncoding = defaultEncoding)
-        throws
-    {
-        guard let stream = NSInputStream(URL: url) else {
-            throw CSVError.StreamError
-        }
-        try self.init(stream: stream, hasHeaderRow: hasHeaderRow, encoding: encoding)
-    }
-    
-    public convenience init(
-        string: String,
-        hasHeaderRow: Bool = defaultHasHeaderRow)
-        throws
-    {
-        let encoding = defaultEncoding
-        guard let data = string.dataUsingEncoding(encoding) else {
-            throw CSVError.StringEncodingMismatch
-        }
-        let memoryStream = NSInputStream(data: data)
-        try self.init(stream: memoryStream, hasHeaderRow: hasHeaderRow, encoding: encoding)
-    }
-    
-}

Sources/CSV/BinaryReader.swift

@@ -0,0 +1,295 @@
+//
+//  BinaryReader.swift
+//  CSV
+//
+//  Created by Yasuhiro Hatta on 2016/06/20.
+//  Copyright © 2016 yaslab. All rights reserved.
+//
+
+import Foundation
+
+enum UnicodeBOM {
+    // UTF-8
+    static let utf8: [UInt8] = [0xef, 0xbb, 0xbf]
+    // UTF-16 BE
+    static let utf16BE: [UInt8] = [0xfe, 0xff]
+    // UTF-16 LE
+    static let utf16LE: [UInt8] = [0xff, 0xfe]
+    // UTF-32 BE
+    static let utf32BE: [UInt8] = [0x00, 0x00, 0xfe, 0xff]
+    // UTF-32 LE
+    static let utf32LE: [UInt8] = [0xff, 0xfe, 0x00, 0x00]
+}
+
+extension UnicodeBOM {
+
+    fileprivate static func readBOM(buffer: UnsafePointer<UInt8>, count: Int) -> (Endian, Int)? {
+        if count >= 4 {
+            // UTF-32 BE
+            if compare(buffer: buffer, bom: UnicodeBOM.utf32BE) {
+                return (.big, UnicodeBOM.utf32BE.count)
+            }
+            // UTF-32 LE
+            if compare(buffer: buffer, bom: UnicodeBOM.utf32LE) {
+                return (.little, UnicodeBOM.utf32LE.count)
+            }
+        }
+        if count >= 3 {
+            // UTF-8
+            if compare(buffer: buffer, bom: UnicodeBOM.utf8) {
+                return (.unknown, UnicodeBOM.utf8.count)
+            }
+        }
+        if count >= 2 {
+            // UTF-16 BE
+            if compare(buffer: buffer, bom: UnicodeBOM.utf16BE) {
+                return (.big, UnicodeBOM.utf16BE.count)
+            }
+            // UTF-16 LE
+            if compare(buffer: buffer, bom: UnicodeBOM.utf16LE) {
+                return (.little, UnicodeBOM.utf16LE.count)
+            }
+        }
+        return nil
+    }
+
+    private static func compare(buffer: UnsafePointer<UInt8>, bom: [UInt8]) -> Bool {
+        for i in 0 ..< bom.count {
+            guard buffer[i] == bom[i] else {
+                return false
+            }
+        }
+        return true
+    }
+
+}
+
+internal class BinaryReader {
+
+    private let stream: InputStream
+    private let endian: Endian
+    private let closeOnDeinit: Bool
+
+    private let _buffer: UnsafeMutablePointer<UInt8>
+    private let _capacity: Int
+    private var _count: Int = 0
+    private var _position: Int = 0
+
+    internal init(
+        stream: InputStream,
+        endian: Endian,
+        closeOnDeinit: Bool,
+        bufferSize: Int = Int(UInt16.max)) throws {
+
+        var endian = endian
+
+        if stream.streamStatus == .notOpen {
+            stream.open()
+        }
+        if stream.streamStatus != .open {
+            throw CSVError.cannotOpenFile
+        }
+
+        _buffer = UnsafeMutablePointer<UInt8>.allocate(capacity: bufferSize)
+        _capacity = bufferSize
+        _count = stream.read(_buffer, maxLength: _capacity)
+        if _count < 0 {
+            throw CSVError.cannotReadFile
+        }
+
+        var position = 0
+        if let (e, l) = UnicodeBOM.readBOM(buffer: _buffer, count: _count) {
+            if endian != .unknown && endian != e {
+                throw CSVError.stringEndianMismatch
+            }
+            endian = e
+            position = l
+        }
+        _position = position
+
+        self.stream = stream
+        self.endian = endian
+        self.closeOnDeinit = closeOnDeinit
+    }
+
+    deinit {
+        if closeOnDeinit && stream.streamStatus != .closed {
+            stream.close()
+        }
+        _buffer.deallocate()
+    }
+
+    internal var hasBytesAvailable: Bool {
+        if _count - _position > 0 {
+            return true
+        }
+        return stream.hasBytesAvailable
+    }
+
+    @inline(__always)
+    private func readStream(_ buffer: UnsafeMutablePointer<UInt8>, maxLength: Int) throws -> Int {
+        var count = 0
+        for i in 0 ..< maxLength {
+            if _position >= _count {
+                let result = stream.read(_buffer, maxLength: _capacity)
+                if result < 0 {
+                    if let error = stream.streamError {
+                        throw CSVError.streamErrorHasOccurred(error: error)
+                    } else {
+                        throw CSVError.cannotReadFile
+                    }
+                }
+                _count = result
+                _position = 0
+                if result == 0 {
+                    break
+                }
+            }
+            buffer[i] = _buffer[_position]
+            _position += 1
+            count += 1
+        }
+        return count
+    }
+
+    internal func readUInt8() throws -> UInt8 {
+        let bufferSize = 1
+        var buffer: UInt8 = 0
+        if try readStream(&buffer, maxLength: bufferSize) != bufferSize {
+            throw CSVError.cannotReadFile
+        }
+        return buffer
+    }
+
+    internal func readUInt16() throws -> UInt16 {
+        let bufferSize = 2
+        let buffer = UnsafeMutablePointer<UInt8>.allocate(capacity: bufferSize)
+        defer { buffer.deallocate() }
+        if try readStream(buffer, maxLength: bufferSize) != bufferSize {
+            throw CSVError.stringEncodingMismatch
+        }
+        return try buffer.withMemoryRebound(to: UInt16.self, capacity: 1) {
+            switch endian {
+            case .big:
+                return UInt16(bigEndian: $0.pointee)
+            case .little:
+                return UInt16(littleEndian: $0.pointee)
+            default:
+                throw CSVError.stringEndianMismatch
+            }
+        }
+    }
+
+    internal func readUInt32() throws -> UInt32 {
+        let bufferSize = 4
+        let buffer = UnsafeMutablePointer<UInt8>.allocate(capacity: bufferSize)
+        defer { buffer.deallocate() }
+        if try readStream(buffer, maxLength: bufferSize) != bufferSize {
+            throw CSVError.stringEncodingMismatch
+        }
+        return try buffer.withMemoryRebound(to: UInt32.self, capacity: 1) {
+            switch endian {
+            case .big:
+                return UInt32(bigEndian: $0.pointee)
+            case .little:
+                return UInt32(littleEndian: $0.pointee)
+            default:
+                throw CSVError.stringEndianMismatch
+            }
+        }
+    }
+
+}
+
+extension BinaryReader {
+
+    internal class UInt8Iterator: Sequence, IteratorProtocol {
+
+        private let reader: BinaryReader
+        internal var errorHandler: ((Error) -> Void)?
+
+        fileprivate init(reader: BinaryReader) {
+            self.reader = reader
+        }
+
+        internal func next() -> UInt8? {
+            if !reader.hasBytesAvailable {
+                return nil
+            }
+            do {
+                return try reader.readUInt8()
+            } catch {
+                errorHandler?(error)
+                return nil
+            }
+        }
+
+    }
+
+    internal func makeUInt8Iterator() -> UInt8Iterator {
+        return UInt8Iterator(reader: self)
+    }
+
+}
+
+extension BinaryReader {
+
+    internal class UInt16Iterator: Sequence, IteratorProtocol {
+
+        private let reader: BinaryReader
+        internal var errorHandler: ((Error) -> Void)?
+
+        fileprivate init(reader: BinaryReader) {
+            self.reader = reader
+        }
+
+        internal func next() -> UInt16? {
+            if !reader.hasBytesAvailable {
+                return nil
+            }
+            do {
+                return try reader.readUInt16()
+            } catch {
+                errorHandler?(error)
+                return nil
+            }
+        }
+
+    }
+
+    internal func makeUInt16Iterator() -> UInt16Iterator {
+        return UInt16Iterator(reader: self)
+    }
+
+}
+
+extension BinaryReader {
+
+    internal class UInt32Iterator: Sequence, IteratorProtocol {
+
+        private let reader: BinaryReader
+        internal var errorHandler: ((Error) -> Void)?
+
+        fileprivate init(reader: BinaryReader) {
+            self.reader = reader
+        }
+
+        internal func next() -> UInt32? {
+            if !reader.hasBytesAvailable {
+                return nil
+            }
+            do {
+                return try reader.readUInt32()
+            } catch {
+                errorHandler?(error)
+                return nil
+            }
+        }
+
+    }
+
+    internal func makeUInt32Iterator() -> UInt32Iterator {
+        return UInt32Iterator(reader: self)
+    }
+
+}

Sources/CSV/CSVError.swift

@@ -0,0 +1,29 @@
+//
+//  CSVError.swift
+//  CSV
+//
+//  Created by Yasuhiro Hatta on 2016/06/11.
+//  Copyright © 2016 yaslab. All rights reserved.
+//
+
+/// No overview available.
+public enum CSVError: Error {
+
+    /// No overview available.
+    case cannotOpenFile
+    /// No overview available.
+    case cannotReadFile
+    /// No overview available.
+    case cannotWriteStream
+    /// No overview available.
+    case streamErrorHasOccurred(error: Error)
+    /// No overview available.
+    case unicodeDecoding
+    /// No overview available.
+    case cannotReadHeaderRow
+    /// No overview available.
+    case stringEncodingMismatch
+    /// No overview available.
+    case stringEndianMismatch
+
+}

Sources/CSV/CSVReader.swift

@@ -0,0 +1,391 @@
+//
+//  CSVReader.swift
+//  CSV
+//
+//  Created by Yasuhiro Hatta on 2016/06/11.
+//  Copyright © 2016 yaslab. All rights reserved.
+//
+
+import Foundation
+
+internal let LF: UnicodeScalar = "\n"
+internal let CR: UnicodeScalar = "\r"
+internal let DQUOTE: UnicodeScalar = "\""
+
+internal let DQUOTE_STR: String = "\""
+internal let DQUOTE2_STR: String = "\"\""
+
+/// No overview available.
+public class CSVReader {
+
+    /// No overview available.
+    public struct Configuration {
+
+        /// `true` if the CSV has a header row, otherwise `false`. Default: `false`.
+        public var hasHeaderRow: Bool
+        /// No overview available.
+        public var trimFields: Bool
+        /// Default: `","`.
+        public var delimiter: UnicodeScalar
+        /// No overview available.
+        public var whitespaces: CharacterSet
+
+        /// No overview available.
+        internal init(
+            hasHeaderRow: Bool,
+            trimFields: Bool,
+            delimiter: UnicodeScalar,
+            whitespaces: CharacterSet) {
+
+            self.hasHeaderRow = hasHeaderRow
+            self.trimFields = trimFields
+            self.delimiter = delimiter
+
+            var whitespaces = whitespaces
+            _ = whitespaces.remove(delimiter)
+            self.whitespaces = whitespaces
+        }
+
+    }
+
+    fileprivate var iterator: AnyIterator<UnicodeScalar>
+    public let configuration: Configuration
+    public fileprivate (set) var error: Error?
+
+    fileprivate var back: UnicodeScalar?
+
+    /// CSV header row. To set a value for this property,
+    /// you set `true` to `headerRow` in initializer.
+    public private (set) var headerRow: [String]?
+
+    public fileprivate (set) var currentRow: [String]?
+
+    internal init<T: IteratorProtocol>(
+        iterator: T,
+        configuration: Configuration
+        ) throws where T.Element == UnicodeScalar {
+
+        self.iterator = AnyIterator(iterator)
+        self.configuration = configuration
+
+        if configuration.hasHeaderRow {
+            guard let headerRow = readRow() else {
+                throw CSVError.cannotReadHeaderRow
+            }
+            self.headerRow = headerRow
+            self.currentRow = nil
+        }
+    }
+
+}
+
+extension CSVReader {
+
+    public static let defaultHasHeaderRow: Bool = false
+    public static let defaultTrimFields: Bool = false
+    public static let defaultDelimiter: UnicodeScalar = ","
+    public static let defaultWhitespaces: CharacterSet = .whitespaces
+
+    /// Create an instance with `InputStream`.
+    ///
+    /// - parameter stream: An `InputStream` object. If the stream is not open,
+    ///                     initializer opens automatically.
+    /// - parameter codecType: A `UnicodeCodec` type for `stream`.
+    /// - parameter hasHeaderRow: `true` if the CSV has a header row, otherwise `false`. Default: `false`.
+    /// - parameter delimiter: Default: `","`.
+    public convenience init<T: UnicodeCodec>(
+        stream: InputStream,
+        codecType: T.Type,
+        hasHeaderRow: Bool = defaultHasHeaderRow,
+        trimFields: Bool = defaultTrimFields,
+        delimiter: UnicodeScalar = defaultDelimiter,
+        whitespaces: CharacterSet = defaultWhitespaces
+        ) throws where T.CodeUnit == UInt8 {
+
+        let reader = try BinaryReader(stream: stream, endian: .unknown, closeOnDeinit: true)
+        let input = reader.makeUInt8Iterator()
+        let iterator = UnicodeIterator(input: input, inputEncodingType: codecType)
+        let config = Configuration(hasHeaderRow: hasHeaderRow,
+                                   trimFields: trimFields,
+                                   delimiter: delimiter,
+                                   whitespaces: whitespaces)
+        try self.init(iterator: iterator, configuration: config)
+        input.errorHandler = { [unowned self] in self.errorHandler(error: $0) }
+        iterator.errorHandler = { [unowned self] in self.errorHandler(error: $0) }
+    }
+
+    /// Create an instance with `InputStream`.
+    ///
+    /// - parameter stream: An `InputStream` object. If the stream is not open,
+    ///                     initializer opens automatically.
+    /// - parameter codecType: A `UnicodeCodec` type for `stream`.
+    /// - parameter endian: Endian to use when reading a stream. Default: `.big`.
+    /// - parameter hasHeaderRow: `true` if the CSV has a header row, otherwise `false`. Default: `false`.
+    /// - parameter delimiter: Default: `","`.
+    public convenience init<T: UnicodeCodec>(
+        stream: InputStream,
+        codecType: T.Type,
+        endian: Endian = .big,
+        hasHeaderRow: Bool = defaultHasHeaderRow,
+        trimFields: Bool = defaultTrimFields,
+        delimiter: UnicodeScalar = defaultDelimiter,
+        whitespaces: CharacterSet = defaultWhitespaces
+        ) throws where T.CodeUnit == UInt16 {
+
+        let reader = try BinaryReader(stream: stream, endian: endian, closeOnDeinit: true)
+        let input = reader.makeUInt16Iterator()
+        let iterator = UnicodeIterator(input: input, inputEncodingType: codecType)
+        let config = Configuration(hasHeaderRow: hasHeaderRow,
+                                   trimFields: trimFields,
+                                   delimiter: delimiter,
+                                   whitespaces: whitespaces)
+        try self.init(iterator: iterator, configuration: config)
+        input.errorHandler = { [unowned self] in self.errorHandler(error: $0) }
+        iterator.errorHandler = { [unowned self] in self.errorHandler(error: $0) }
+    }
+
+    /// Create an instance with `InputStream`.
+    ///
+    /// - parameter stream: An `InputStream` object. If the stream is not open,
+    ///                     initializer opens automatically.
+    /// - parameter codecType: A `UnicodeCodec` type for `stream`.
+    /// - parameter endian: Endian to use when reading a stream. Default: `.big`.
+    /// - parameter hasHeaderRow: `true` if the CSV has a header row, otherwise `false`. Default: `false`.
+    /// - parameter delimiter: Default: `","`.
+    public convenience init<T: UnicodeCodec>(
+        stream: InputStream,
+        codecType: T.Type,
+        endian: Endian = .big,
+        hasHeaderRow: Bool = defaultHasHeaderRow,
+        trimFields: Bool = defaultTrimFields,
+        delimiter: UnicodeScalar = defaultDelimiter,
+        whitespaces: CharacterSet = defaultWhitespaces
+        ) throws where T.CodeUnit == UInt32 {
+
+        let reader = try BinaryReader(stream: stream, endian: endian, closeOnDeinit: true)
+        let input = reader.makeUInt32Iterator()
+        let iterator = UnicodeIterator(input: input, inputEncodingType: codecType)
+        let config = Configuration(hasHeaderRow: hasHeaderRow,
+                                   trimFields: trimFields,
+                                   delimiter: delimiter,
+                                   whitespaces: whitespaces)
+        try self.init(iterator: iterator, configuration: config)
+        input.errorHandler = { [unowned self] in self.errorHandler(error: $0) }
+        iterator.errorHandler = { [unowned self] in self.errorHandler(error: $0) }
+    }
+
+    /// Create an instance with `InputStream`.
+    ///
+    /// - parameter stream: An `InputStream` object. If the stream is not open,
+    ///                     initializer opens automatically.
+    /// - parameter hasHeaderRow: `true` if the CSV has a header row, otherwise `false`. Default: `false`.
+    /// - parameter delimiter: Default: `","`.
+    public convenience init(
+        stream: InputStream,
+        hasHeaderRow: Bool = defaultHasHeaderRow,
+        trimFields: Bool = defaultTrimFields,
+        delimiter: UnicodeScalar = defaultDelimiter,
+        whitespaces: CharacterSet = defaultWhitespaces
+        ) throws {
+
+        try self.init(
+            stream: stream,
+            codecType: UTF8.self,
+            hasHeaderRow: hasHeaderRow,
+            trimFields: trimFields,
+            delimiter: delimiter,
+            whitespaces: whitespaces)
+    }
+
+    /// Create an instance with CSV string.
+    ///
+    /// - parameter string: An CSV string.
+    /// - parameter hasHeaderRow: `true` if the CSV has a header row, otherwise `false`. Default: `false`.
+    /// - parameter delimiter: Default: `","`.
+    public convenience init(
+        string: String,
+        hasHeaderRow: Bool = defaultHasHeaderRow,
+        trimFields: Bool = defaultTrimFields,
+        delimiter: UnicodeScalar = defaultDelimiter,
+        whitespaces: CharacterSet = defaultWhitespaces
+        ) throws {
+
+        let iterator = string.unicodeScalars.makeIterator()
+        let config = Configuration(hasHeaderRow: hasHeaderRow,
+                                   trimFields: trimFields,
+                                   delimiter: delimiter,
+                                   whitespaces: whitespaces)
+        try self.init(iterator: iterator, configuration: config)
+    }
+
+    private func errorHandler(error: Error) {
+        //configuration.fileInputErrorHandler?(error, currentRowIndex, currentFieldIndex)
+        self.error = error
+    }
+
+}
+
+// MARK: - Parse CSV
+
+extension CSVReader {
+
+    fileprivate func readRow() -> [String]? {
+        var c = moveNext()
+        if c == nil {
+            currentRow = nil
+            return nil
+        }
+
+        var row = [String]()
+        var field: String
+        var end: Bool
+        while true {
+            if configuration.trimFields {
+                // Trim the leading spaces
+                while c != nil && configuration.whitespaces.contains(c!) {
+                    c = moveNext()
+                }
+            }
+
+            if c == nil {
+                (field, end) = ("", true)
+            } else if c == DQUOTE {
+                (field, end) = readField(quoted: true)
+            } else {
+                back = c
+                (field, end) = readField(quoted: false)
+
+                if configuration.trimFields {
+                    // Trim the trailing spaces
+                    field = field.trimmingCharacters(in: configuration.whitespaces)
+                }
+            }
+            row.append(field)
+            if end {
+                break
+            }
+
+            c = moveNext()
+        }
+
+        currentRow = row
+        return row
+    }
+
+    private func readField(quoted: Bool) -> (String, Bool) {
+        var fieldBuffer = String.UnicodeScalarView()
+
+        while let c = moveNext() {
+            if quoted {
+                if c == DQUOTE {
+                    var cNext = moveNext()
+
+                    if configuration.trimFields {
+                        // Trim the trailing spaces
+                        while cNext != nil && configuration.whitespaces.contains(cNext!) {
+                            cNext = moveNext()
+                        }
+                    }
+
+                    if cNext == nil || cNext == CR || cNext == LF {
+                        if cNext == CR {
+                            let cNextNext = moveNext()
+                            if cNextNext != LF {
+                                back = cNextNext
+                            }
+                        }
+                        // END ROW
+                        return (String(fieldBuffer), true)
+                    } else if cNext == configuration.delimiter {
+                        // END FIELD
+                        return (String(fieldBuffer), false)
+                    } else if cNext == DQUOTE {
+                        // ESC
+                        fieldBuffer.append(DQUOTE)
+                    } else {
+                        // ERROR?
+                        fieldBuffer.append(c)
+                    }
+                } else {
+                    fieldBuffer.append(c)
+                }
+            } else {
+                if c == CR || c == LF {
+                    if c == CR {
+                        let cNext = moveNext()
+                        if cNext != LF {
+                            back = cNext
+                        }
+                    }
+                    // END ROW
+                    return (String(fieldBuffer), true)
+                } else if c == configuration.delimiter {
+                    // END FIELD
+                    return (String(fieldBuffer), false)
+                } else {
+                    fieldBuffer.append(c)
+                }
+            }
+        }
+
+        // END FILE
+        return (String(fieldBuffer), true)
+    }
+
+    private func moveNext() -> UnicodeScalar? {
+        if back != nil {
+            defer {
+                back = nil
+            }
+            return back
+        }
+        return iterator.next()
+    }
+
+}
+
+//extension CSVReader {
+//
+//    public func enumerateRows(_ block: ((CSVReader, inout Bool) throws -> Void)) throws {
+//        var stop = false
+//        while next() != nil {
+//            try block(self, &stop)
+//            if stop {
+//                break
+//            }
+//        }
+//        if let error = error {
+//            throw error
+//        }
+//    }
+//
+//}
+
+extension CSVReader: IteratorProtocol {
+
+    @discardableResult
+    public func next() -> [String]? {
+        return readRow()
+    }
+
+}
+
+extension CSVReader {
+
+    public subscript(key: String) -> String? {
+        guard let header = headerRow else {
+            fatalError("CSVReader.headerRow must not be nil")
+        }
+        guard let index = header.firstIndex(of: key) else {
+            return nil
+        }
+        guard let row = currentRow else {
+            fatalError("CSVReader.currentRow must not be nil")
+        }
+        guard index < row.count else {
+            return ""
+        }
+        return row[index]
+    }
+
+}

Sources/CSV/CSVRowDecoder.swift

@@ -0,0 +1,749 @@
+//
+//  CSVRowDecoder.swift
+//  CSV
+//
+//  Created by Yasuhiro Hatta on 2018/11/17.
+//  Copyright © 2018 yaslab. All rights reserved.
+//
+
+import Foundation
+
+/// `CSVRowDecoder` facilitates the decoding of CSV row into semantic `Decodable` types.
+open class CSVRowDecoder {
+
+    /// The strategy to use for decoding `Bool` values.
+    public enum BoolDecodingStrategy {
+        /// Decode the `Bool` using default initializer.
+        case `default`
+
+        /// Decode the `Bool` as a custom value decoded by the given closure.
+        case custom((_ value: String) throws -> Bool)
+    }
+
+    /// The strategy to use for decoding `Date` values.
+    public enum DateDecodingStrategy {
+        /// Defer to `Date` for decoding. This is the default strategy.
+        case deferredToDate
+
+        /// Decode the `Date` as a UNIX timestamp from a JSON number.
+        case secondsSince1970
+
+        /// Decode the `Date` as UNIX millisecond timestamp from a JSON number.
+        case millisecondsSince1970
+
+        /// Decode the `Date` as an ISO-8601-formatted string (in RFC 3339 format).
+        @available(macOS 10.12, iOS 10.0, watchOS 3.0, tvOS 10.0, *)
+        case iso8601
+
+        /// Decode the `Date` as a string parsed by the given formatter.
+        case formatted(DateFormatter)
+
+        /// Decode the `Date` as a custom value decoded by the given closure.
+        case custom((_ value: String) throws -> Date)
+    }
+
+    /// The strategy to use for decoding `Data` values.
+    public enum DataDecodingStrategy {
+        // TODO: Implement unkeyed decoding container.
+        // /// Defer to `Data` for decoding.
+        // case deferredToData
+
+        /// Decode the `Data` from a Base64-encoded string. This is the default strategy.
+        case base64
+
+        /// Decode the `Data` as a custom value decoded by the given closure.
+        case custom((_ value: String) throws -> Data)
+    }
+    
+    /// The strategy to use for decoding `nil` values.
+    public enum NilDecodingStrategy {
+        case empty
+        case custom((_ value: String) -> Bool)
+    }
+
+    /// The strategy to use in decoding bools. Defaults to `.default`.
+    open var boolDecodingStrategy: BoolDecodingStrategy = .default
+
+    /// The strategy to use in decoding dates. Defaults to `.deferredToDate`.
+    open var dateDecodingStrategy: DateDecodingStrategy = .deferredToDate
+
+    /// The strategy to use in decoding binary data. Defaults to `.base64`.
+    open var dataDecodingStrategy: DataDecodingStrategy = .base64
+    
+    /// The strategy to use in decoding nil data. Defaults to `.empty`.
+    open var nilDecodingStrategy: NilDecodingStrategy = .empty
+
+    /// Contextual user-provided information for use during decoding.
+    open var userInfo: [CodingUserInfoKey: Any] = [:]
+
+    /// Options set on the top-level encoder to pass down the decoding hierarchy.
+    fileprivate struct _Options {
+        let boolDecodingStrategy: BoolDecodingStrategy
+        let dateDecodingStrategy: DateDecodingStrategy
+        let dataDecodingStrategy: DataDecodingStrategy
+        let nilDecodingStrategy: NilDecodingStrategy
+        let userInfo: [CodingUserInfoKey: Any]
+    }
+
+    /// The options set on the top-level decoder.
+    fileprivate var options: _Options {
+        return _Options(boolDecodingStrategy: boolDecodingStrategy,
+                        dateDecodingStrategy: dateDecodingStrategy,
+                        dataDecodingStrategy: dataDecodingStrategy,
+                        nilDecodingStrategy: nilDecodingStrategy,
+                        userInfo: userInfo)
+    }
+
+    /// Initializes `self` with default strategies.
+    public init() {}
+
+    /// Decodes a top-level value of the given type from the given CSV row representation.
+    open func decode<T: Decodable>(_ type: T.Type, from reader: CSVReader) throws -> T {
+        let decoder = _CSVRowDecoder(referencing: reader, options: self.options)
+        return try type.init(from: decoder)
+    }
+
+}
+
+fileprivate final class _CSVRowDecoder: Decoder {
+
+    fileprivate let reader: CSVReader
+
+    fileprivate let options: CSVRowDecoder._Options
+
+    public var codingPath: [CodingKey] = []
+
+    public var userInfo: [CodingUserInfoKey: Any] {
+        return self.options.userInfo
+    }
+
+    fileprivate init(referencing reader: CSVReader, options: CSVRowDecoder._Options) {
+        self.reader = reader
+        self.options = options
+    }
+
+    public func container<Key: CodingKey>(keyedBy type: Key.Type) throws -> KeyedDecodingContainer<Key> {
+        let container = CSVKeyedDecodingContainer<Key>(referencing: self)
+        return KeyedDecodingContainer(container)
+    }
+
+    public func unkeyedContainer() throws -> UnkeyedDecodingContainer {
+        throw DecodingError.valueNotFound(UnkeyedDecodingContainer.self,
+                                          DecodingError.Context(codingPath: self.codingPath,
+                                                                debugDescription: "Cannot get unkeyed decoding container -- found null value instead."))
+    }
+
+    public func singleValueContainer() throws -> SingleValueDecodingContainer {
+        return self
+    }
+
+}
+
+fileprivate final class CSVKeyedDecodingContainer<K: CodingKey>: KeyedDecodingContainerProtocol {
+
+    typealias Key = K
+
+    private let decoder: _CSVRowDecoder
+
+    public var codingPath: [CodingKey] {
+        return self.decoder.codingPath
+    }
+
+    public var allKeys: [Key] {
+        guard let headerRow = self.decoder.reader.headerRow else { return [] }
+        return headerRow.compactMap { Key(stringValue: $0) }
+    }
+
+    fileprivate init(referencing decoder: _CSVRowDecoder) {
+        self.decoder = decoder
+    }
+
+    private func value(for key: Key) throws -> String {
+        guard self.contains(key) else {
+            throw DecodingError.keyNotFound(key, DecodingError.Context(codingPath: self.decoder.codingPath, debugDescription: "No value associated with key \(key) (\"\(key.stringValue)\")."))
+        }
+
+        if let index = key.intValue {
+            return self.decoder.reader.currentRow![index]
+        } else {
+            return self.decoder.reader[key.stringValue]!
+        }
+    }
+
+    private func _valueNotFound(_ type: Any.Type) -> DecodingError {
+        let description = "Expected \(type) value but found null instead."
+        return .valueNotFound(type, DecodingError.Context(codingPath: self.decoder.codingPath, debugDescription: description))
+    }
+
+    public func contains(_ key: Key) -> Bool {
+        guard let row = self.decoder.reader.currentRow else { return false }
+
+        if let index = key.intValue {
+            return index < row.count
+        } else {
+            guard let headerRow = self.decoder.reader.headerRow else {
+                return false
+            }
+            return headerRow.contains(key.stringValue)
+        }
+    }
+
+    public func decodeNil(forKey key: Key) throws -> Bool {
+        switch decoder.options.nilDecodingStrategy {
+        case .empty:
+            return try self.value(for: key).isEmpty
+        case .custom(let customClosure):
+            return customClosure(try self.value(for: key))
+        }
+    }
+
+    public func decode(_ type: Bool.Type, forKey key: Key) throws -> Bool {
+        let value = try self.value(for: key)
+
+        self.decoder.codingPath.append(key)
+        defer { self.decoder.codingPath.removeLast() }
+
+        guard let result = try self.decoder.unbox(value, as: Bool.self) else {
+            throw _valueNotFound(type)
+        }
+        return result
+    }
+
+    public func decode(_ type: String.Type, forKey key: Key) throws -> String {
+        let value = try self.value(for: key)
+
+        self.decoder.codingPath.append(key)
+        defer { self.decoder.codingPath.removeLast() }
+
+        guard let result = try self.decoder.unbox(value, as: String.self) else {
+            throw _valueNotFound(type)
+        }
+        return result
+    }
+
+    public func decode(_ type: Double.Type, forKey key: Key) throws -> Double {
+        let value = try self.value(for: key)
+
+        self.decoder.codingPath.append(key)
+        defer { self.decoder.codingPath.removeLast() }
+
+        guard let result = try self.decoder.unbox(value, as: Double.self) else {
+            throw _valueNotFound(type)
+        }
+        return result
+    }
+
+    public func decode(_ type: Float.Type, forKey key: Key) throws -> Float {
+        let value = try self.value(for: key)
+
+        self.decoder.codingPath.append(key)
+        defer { self.decoder.codingPath.removeLast() }
+
+        guard let result = try self.decoder.unbox(value, as: Float.self) else {
+            throw _valueNotFound(type)
+        }
+        return result
+    }
+
+    public func decode(_ type: Int.Type, forKey key: Key) throws -> Int {
+        let value = try self.value(for: key)
+
+        self.decoder.codingPath.append(key)
+        defer { self.decoder.codingPath.removeLast() }
+
+        guard let result = try self.decoder.unbox(value, as: Int.self) else {
+            throw _valueNotFound(type)
+        }
+        return result
+    }
+
+    public func decode(_ type: Int8.Type, forKey key: Key) throws -> Int8 {
+        let value = try self.value(for: key)
+
+        self.decoder.codingPath.append(key)
+        defer { self.decoder.codingPath.removeLast() }
+
+        guard let result = try self.decoder.unbox(value, as: Int8.self) else {
+            throw _valueNotFound(type)
+        }
+        return result
+    }
+
+    public func decode(_ type: Int16.Type, forKey key: Key) throws -> Int16 {
+        let value = try self.value(for: key)
+
+        self.decoder.codingPath.append(key)
+        defer { self.decoder.codingPath.removeLast() }
+
+        guard let result = try self.decoder.unbox(value, as: Int16.self) else {
+            throw _valueNotFound(type)
+        }
+        return result
+    }
+
+    public func decode(_ type: Int32.Type, forKey key: Key) throws -> Int32 {
+        let value = try self.value(for: key)
+
+        self.decoder.codingPath.append(key)
+        defer { self.decoder.codingPath.removeLast() }
+
+        guard let result = try self.decoder.unbox(value, as: Int32.self) else {
+            throw _valueNotFound(type)
+        }
+        return result
+    }
+
+    public func decode(_ type: Int64.Type, forKey key: Key) throws -> Int64 {
+        let value = try self.value(for: key)
+
+        self.decoder.codingPath.append(key)
+        defer { self.decoder.codingPath.removeLast() }
+
+        guard let result = try self.decoder.unbox(value, as: Int64.self) else {
+            throw _valueNotFound(type)
+        }
+        return result
+    }
+
+    public func decode(_ type: UInt.Type, forKey key: Key) throws -> UInt {
+        let value = try self.value(for: key)
+
+        self.decoder.codingPath.append(key)
+        defer { self.decoder.codingPath.removeLast() }
+
+        guard let result = try self.decoder.unbox(value, as: UInt.self) else {
+            throw _valueNotFound(type)
+        }
+        return result
+    }
+
+    public func decode(_ type: UInt8.Type, forKey key: Key) throws -> UInt8 {
+        let value = try self.value(for: key)
+
+        self.decoder.codingPath.append(key)
+        defer { self.decoder.codingPath.removeLast() }
+
+        guard let result = try self.decoder.unbox(value, as: UInt8.self) else {
+            throw _valueNotFound(type)
+        }
+        return result
+    }
+
+    public func decode(_ type: UInt16.Type, forKey key: Key) throws -> UInt16 {
+        let value = try self.value(for: key)
+
+        self.decoder.codingPath.append(key)
+        defer { self.decoder.codingPath.removeLast() }
+
+        guard let result = try self.decoder.unbox(value, as: UInt16.self) else {
+            throw _valueNotFound(type)
+        }
+        return result
+    }
+
+    public func decode(_ type: UInt32.Type, forKey key: Key) throws -> UInt32 {
+        let value = try self.value(for: key)
+
+        self.decoder.codingPath.append(key)
+        defer { self.decoder.codingPath.removeLast() }
+
+        guard let result = try self.decoder.unbox(value, as: UInt32.self) else {
+            throw _valueNotFound(type)
+        }
+        return result
+    }
+
+    public func decode(_ type: UInt64.Type, forKey key: Key) throws -> UInt64 {
+        let value = try self.value(for: key)
+
+        self.decoder.codingPath.append(key)
+        defer { self.decoder.codingPath.removeLast() }
+
+        guard let result = try self.decoder.unbox(value, as: UInt64.self) else {
+            throw _valueNotFound(type)
+        }
+        return result
+    }
+
+    public func decode<T: Decodable>(_ type: T.Type, forKey key: Key) throws -> T {
+        let value = try self.value(for: key)
+
+        self.decoder.codingPath.append(key)
+        defer { self.decoder.codingPath.removeLast() }
+
+        guard let result = try self.decoder.unbox(value, as: type) else {
+            throw _valueNotFound(type)
+        }
+        return result
+    }
+
+    public func nestedContainer<NestedKey: CodingKey>(keyedBy type: NestedKey.Type, forKey key: Key) throws -> KeyedDecodingContainer<NestedKey> {
+        // Not supported
+        throw DecodingError.dataCorrupted(
+            DecodingError.Context(codingPath: self.codingPath,
+                                  debugDescription: "nestedContainer(...) CSV does not support nested values")
+        )
+    }
+
+    public func nestedUnkeyedContainer(forKey key: Key) throws -> UnkeyedDecodingContainer {
+        // Not supported
+        throw DecodingError.dataCorrupted(
+            DecodingError.Context(codingPath: self.codingPath,
+                                  debugDescription: "nestedUnkeyedContainer(...) CSV does not support nested values")
+        )
+    }
+
+    public func superDecoder() throws -> Decoder {
+        // Not supported
+        throw DecodingError.dataCorrupted(
+            DecodingError.Context(codingPath: self.codingPath,
+                                  debugDescription: "CSV does not support nested values")
+        )
+    }
+
+    public func superDecoder(forKey key: Key) throws -> Decoder {
+        // Not supported
+        throw DecodingError.dataCorrupted(
+            DecodingError.Context(codingPath: self.codingPath,
+                                  debugDescription: "CSV does not support nested values")
+        )
+    }
+
+}
+
+extension _CSVRowDecoder: SingleValueDecodingContainer {
+
+    private var value: String {
+        let key = self.codingPath.last!
+        if let index = key.intValue {
+            return self.reader.currentRow![index]
+        } else {
+            return self.reader[key.stringValue]!
+        }
+    }
+
+    private func expectNonNull(_ type: Any.Type) throws {
+        guard !self.decodeNil() else {
+            let description = "Expected \(type) but found null value instead."
+            throw DecodingError.valueNotFound(type, DecodingError.Context(codingPath: self.codingPath, debugDescription: description))
+        }
+    }
+
+    public func decodeNil() -> Bool {
+        switch options.nilDecodingStrategy {
+        case .empty:
+            return self.value.isEmpty
+        case .custom(let customClosure):
+            return customClosure(self.value)
+        }
+        
+    }
+
+    public func decode(_ type: Bool.Type) throws -> Bool {
+        try self.expectNonNull(type)
+        return try self.unbox(self.value, as: Bool.self)!
+    }
+
+    public func decode(_ type: Int.Type) throws -> Int {
+        try self.expectNonNull(type)
+        return try self.unbox(self.value, as: Int.self)!
+    }
+
+    public func decode(_ type: Int8.Type) throws -> Int8 {
+        try self.expectNonNull(type)
+        return try self.unbox(self.value, as: Int8.self)!
+    }
+
+    public func decode(_ type: Int16.Type) throws -> Int16 {
+        try self.expectNonNull(type)
+        return try self.unbox(self.value, as: Int16.self)!
+    }
+
+    public func decode(_ type: Int32.Type) throws -> Int32 {
+        try self.expectNonNull(type)
+        return try self.unbox(self.value, as: Int32.self)!
+    }
+
+    public func decode(_ type: Int64.Type) throws -> Int64 {
+        try self.expectNonNull(type)
+        return try self.unbox(self.value, as: Int64.self)!
+    }
+
+    public func decode(_ type: UInt.Type) throws -> UInt {
+        try self.expectNonNull(type)
+        return try self.unbox(self.value, as: UInt.self)!
+    }
+
+    public func decode(_ type: UInt8.Type) throws -> UInt8 {
+        try self.expectNonNull(type)
+        return try self.unbox(self.value, as: UInt8.self)!
+    }
+
+    public func decode(_ type: UInt16.Type) throws -> UInt16 {
+        try self.expectNonNull(type)
+        return try self.unbox(self.value, as: UInt16.self)!
+    }
+
+    public func decode(_ type: UInt32.Type) throws -> UInt32 {
+        try self.expectNonNull(type)
+        return try self.unbox(self.value, as: UInt32.self)!
+    }
+
+    public func decode(_ type: UInt64.Type) throws -> UInt64 {
+        try self.expectNonNull(type)
+        return try self.unbox(self.value, as: UInt64.self)!
+    }
+
+    public func decode(_ type: Float.Type) throws -> Float {
+        try self.expectNonNull(type)
+        return try self.unbox(self.value, as: Float.self)!
+    }
+
+    public func decode(_ type: Double.Type) throws -> Double {
+        try self.expectNonNull(type)
+        return try self.unbox(self.value, as: Double.self)!
+    }
+
+    public func decode(_ type: String.Type) throws -> String {
+        try self.expectNonNull(type)
+        return try self.unbox(self.value, as: String.self)!
+    }
+
+    public func decode<T: Decodable>(_ type: T.Type) throws -> T {
+        try self.expectNonNull(type)
+        return try self.unbox(self.value, as: type)!
+    }
+
+}
+
+extension _CSVRowDecoder {
+
+    private func _typeMismatch(at path: [CodingKey], expectation: Any.Type, reality: String) -> DecodingError {
+        let description = "Expected to decode \(expectation) but found \(reality) instead."
+        return .typeMismatch(expectation, DecodingError.Context(codingPath: path, debugDescription: description))
+    }
+
+    fileprivate func unbox(_ value: String, as type: Bool.Type) throws -> Bool? {
+        if value.isEmpty { return nil }
+
+        switch self.options.boolDecodingStrategy {
+        case .default:
+            guard let bool = Bool(value) else {
+                throw self._typeMismatch(at: self.codingPath, expectation: type, reality: value)
+            }
+            return bool
+
+        case .custom(let closure):
+            return try closure(value)
+        }
+    }
+
+    fileprivate func unbox(_ value: String, as type: Int.Type) throws -> Int? {
+        if value.isEmpty { return nil }
+
+        guard let int = Int(value, radix: 10) else {
+            throw self._typeMismatch(at: self.codingPath, expectation: type, reality: value)
+        }
+        return int
+    }
+
+    fileprivate func unbox(_ value: String, as type: Int8.Type) throws -> Int8? {
+        if value.isEmpty { return nil }
+
+        guard let int8 = Int8(value, radix: 10) else {
+            throw self._typeMismatch(at: self.codingPath, expectation: type, reality: value)
+        }
+        return int8
+    }
+
+    fileprivate func unbox(_ value: String, as type: Int16.Type) throws -> Int16? {
+        if value.isEmpty { return nil }
+
+        guard let int16 = Int16(value, radix: 10) else {
+            throw self._typeMismatch(at: self.codingPath, expectation: type, reality: value)
+        }
+        return int16
+    }
+
+    fileprivate func unbox(_ value: String, as type: Int32.Type) throws -> Int32? {
+        if value.isEmpty { return nil }
+
+        guard let int32 = Int32(value, radix: 10) else {
+            throw self._typeMismatch(at: self.codingPath, expectation: type, reality: value)
+        }
+        return int32
+    }
+
+    fileprivate func unbox(_ value: String, as type: Int64.Type) throws -> Int64? {
+        if value.isEmpty { return nil }
+
+        guard let int64 = Int64(value, radix: 10) else {
+            throw self._typeMismatch(at: self.codingPath, expectation: type, reality: value)
+        }
+        return int64
+    }
+
+    fileprivate func unbox(_ value: String, as type: UInt.Type) throws -> UInt? {
+        if value.isEmpty { return nil }
+
+        guard let uint = UInt(value, radix: 10) else {
+            throw self._typeMismatch(at: self.codingPath, expectation: type, reality: value)
+        }
+        return uint
+    }
+
+    fileprivate func unbox(_ value: String, as type: UInt8.Type) throws -> UInt8? {
+        if value.isEmpty { return nil }
+
+        guard let uint8 = UInt8(value, radix: 10) else {
+            throw self._typeMismatch(at: self.codingPath, expectation: type, reality: value)
+        }
+        return uint8
+    }
+
+    fileprivate func unbox(_ value: String, as type: UInt16.Type) throws -> UInt16? {
+        if value.isEmpty { return nil }
+
+        guard let uint16 = UInt16(value, radix: 10) else {
+            throw self._typeMismatch(at: self.codingPath, expectation: type, reality: value)
+        }
+        return uint16
+    }
+
+    fileprivate func unbox(_ value: String, as type: UInt32.Type) throws -> UInt32? {
+        if value.isEmpty { return nil }
+
+        guard let uint32 = UInt32(value, radix: 10) else {
+            throw self._typeMismatch(at: self.codingPath, expectation: type, reality: value)
+        }
+        return uint32
+    }
+
+    fileprivate func unbox(_ value: String, as type: UInt64.Type) throws -> UInt64? {
+        if value.isEmpty { return nil }
+
+        guard let uint64 = UInt64(value, radix: 10) else {
+            throw self._typeMismatch(at: self.codingPath, expectation: type, reality: value)
+        }
+        return uint64
+    }
+
+    fileprivate func unbox(_ value: String, as type: Float.Type) throws -> Float? {
+        if value.isEmpty { return nil }
+
+        guard let float = Float(value) else {
+            throw self._typeMismatch(at: self.codingPath, expectation: type, reality: value)
+        }
+        return float
+    }
+
+    fileprivate func unbox(_ value: String, as type: Double.Type) throws -> Double? {
+        if value.isEmpty { return nil }
+
+        guard let double = Double(value) else {
+            throw self._typeMismatch(at: self.codingPath, expectation: type, reality: value)
+        }
+        return double
+    }
+
+    fileprivate func unbox(_ value: String, as type: String.Type) throws -> String? {
+        if value.isEmpty { return nil }
+
+        return value
+    }
+
+    private func unbox(_ value: String, as type: Date.Type) throws -> Date? {
+        if value.isEmpty { return nil }
+
+        switch self.options.dateDecodingStrategy {
+        case .deferredToDate:
+            return try Date(from: self)
+
+        case .secondsSince1970:
+            let double = try self.unbox(value, as: Double.self)!
+            return Date(timeIntervalSince1970: double)
+
+        case .millisecondsSince1970:
+            let double = try self.unbox(value, as: Double.self)!
+            return Date(timeIntervalSince1970: double / 1000.0)
+
+        case .iso8601:
+            if #available(macOS 10.12, iOS 10.0, watchOS 3.0, tvOS 10.0, *) {
+                guard let date = _iso8601Formatter.date(from: value) else {
+                    throw DecodingError.dataCorrupted(DecodingError.Context(codingPath: self.codingPath, debugDescription: "Expected date string to be ISO8601-formatted."))
+                }
+                return date
+            } else {
+                fatalError("ISO8601DateFormatter is unavailable on this platform.")
+            }
+
+        case .formatted(let formatter):
+            guard let date = formatter.date(from: value) else {
+                throw DecodingError.dataCorrupted(DecodingError.Context(codingPath: self.codingPath, debugDescription: "Date string does not match format expected by formatter."))
+            }
+            return date
+
+        case .custom(let closure):
+            return try closure(value)
+        }
+    }
+
+    private func unbox(_ value: String, as type: Data.Type) throws -> Data? {
+        if value.isEmpty { return nil }
+
+        switch self.options.dataDecodingStrategy {
+        // TODO: Implement unkeyed decoding container.
+        // case .deferredToData:
+        //     return try Data(from: self)
+
+        case .base64:
+            guard let data = Data(base64Encoded: value) else {
+                throw DecodingError.dataCorrupted(DecodingError.Context(codingPath: self.codingPath, debugDescription: "Encountered Data is not valid Base64."))
+            }
+            return data
+
+        case .custom(let closure):
+            return try closure(value)
+        }
+    }
+
+    fileprivate func unbox<T: Decodable>(_ value: String, as type: T.Type) throws -> T? {
+        if value.isEmpty { return nil }
+
+        if type == Date.self {
+            guard let date = try self.unbox(value, as: Date.self) else { return nil }
+            return (date as! T)
+        } else if type == Data.self {
+            guard let data = try self.unbox(value, as: Data.self) else { return nil }
+            return (data as! T)
+        } else if type == URL.self {
+            guard let url = URL(string: value) else {
+                throw DecodingError.dataCorrupted(DecodingError.Context(codingPath: self.codingPath,
+                                                                        debugDescription: "Invalid URL string."))
+            }
+            return (url as! T)
+        } else if type == Decimal.self {
+            guard let decimal = Decimal(string: value) else {
+                throw DecodingError.dataCorrupted(DecodingError.Context(codingPath: self.codingPath,
+                                                                        debugDescription: "Invalid Decimal string."))
+            }
+            return (decimal as! T)
+        } else {
+            return try type.init(from: self)
+        }
+    }
+
+}
+
+//===----------------------------------------------------------------------===//
+// Shared ISO8601 Date Formatter
+//===----------------------------------------------------------------------===//
+// NOTE: This value is implicitly lazy and _must_ be lazy.
+// We're compiled against the latest SDK (w/ ISO8601DateFormatter), but linked against whichever Foundation the user has.
+// ISO8601DateFormatter might not exist, so we better not hit this code path on an older OS.
+@available(macOS 10.12, iOS 10.0, watchOS 3.0, tvOS 10.0, *)
+fileprivate var _iso8601Formatter: ISO8601DateFormatter = {
+    let formatter = ISO8601DateFormatter()
+    formatter.formatOptions = .withInternetDateTime
+    return formatter
+}()

Sources/CSV/CSVWriter.swift

@@ -0,0 +1,211 @@
+//
+//  CSVWriter.swift
+//  CSV
+//
+//  Created by Yasuhiro Hatta on 2017/05/28.
+//  Copyright © 2017 yaslab. All rights reserved.
+//
+
+import Foundation
+
+public class CSVWriter {
+
+    public struct Configuration {
+
+        public var delimiter: String
+        public var newline: String
+
+        internal init(delimiter: String, newline: Newline) {
+            self.delimiter = delimiter
+
+            switch newline {
+            case .lf:   self.newline = String(LF)
+            case .crlf: self.newline = String(CR) + String(LF)
+            }
+        }
+
+    }
+
+    public enum Newline {
+
+        /// "\n"
+        case lf
+        /// "\r\n"
+        case crlf
+
+    }
+
+    public let stream: OutputStream
+    public let configuration: Configuration
+    fileprivate let writeScalar: ((UnicodeScalar) throws -> Void)
+
+    fileprivate var isFirstRow: Bool = true
+    fileprivate var isFirstField: Bool = true
+
+    fileprivate init(
+        stream: OutputStream,
+        configuration: Configuration,
+        writeScalar: @escaping ((UnicodeScalar) throws -> Void)) throws {
+
+        self.stream = stream
+        self.configuration = configuration
+        self.writeScalar = writeScalar
+
+        if stream.streamStatus == .notOpen {
+            stream.open()
+        }
+        if stream.streamStatus != .open {
+            throw CSVError.cannotOpenFile
+        }
+    }
+
+    deinit {
+        if stream.streamStatus == .open {
+            stream.close()
+        }
+    }
+
+}
+
+extension CSVWriter {
+
+    public static let defaultDelimiter: UnicodeScalar = ","
+
+    public convenience init(
+        stream: OutputStream,
+        delimiter: String = String(defaultDelimiter),
+        newline: Newline = .lf
+        ) throws {
+
+        try self.init(stream: stream, codecType: UTF8.self, delimiter: delimiter, newline: newline)
+    }
+
+    public convenience init<T: UnicodeCodec>(
+        stream: OutputStream,
+        codecType: T.Type,
+        delimiter: String = String(defaultDelimiter),
+        newline: Newline = .lf
+        ) throws where T.CodeUnit == UInt8 {
+
+        let config = Configuration(delimiter: delimiter, newline: newline)
+        try self.init(stream: stream, configuration: config) { (scalar: UnicodeScalar) throws in
+            var error: CSVError?
+            codecType.encode(scalar) { (code: UInt8) in
+                var code = code
+                let count = stream.write(&code, maxLength: 1)
+                if count != 1 {
+                    error = CSVError.cannotWriteStream
+                }
+            }
+            if let error = error {
+                throw error
+            }
+        }
+    }
+
+    public convenience init<T: UnicodeCodec>(
+        stream: OutputStream,
+        codecType: T.Type,
+        endian: Endian = .big,
+        delimiter: String = String(defaultDelimiter),
+        newline: Newline = .lf
+        ) throws where T.CodeUnit == UInt16 {
+
+        let config = Configuration(delimiter: delimiter, newline: newline)
+        try self.init(stream: stream, configuration: config) { (scalar: UnicodeScalar) throws in
+            var error: CSVError?
+            codecType.encode(scalar) { (code: UInt16) in
+                var code = (endian == .big) ? code.bigEndian : code.littleEndian
+                withUnsafeBytes(of: &code) { (buffer) -> Void in
+                    let count = stream.write(buffer.baseAddress!.assumingMemoryBound(to: UInt8.self),
+                                             maxLength: buffer.count)
+                    if count != buffer.count {
+                        error = CSVError.cannotWriteStream
+                    }
+                }
+            }
+            if let error = error {
+                throw error
+            }
+        }
+    }
+
+    public convenience init<T: UnicodeCodec>(
+        stream: OutputStream,
+        codecType: T.Type,
+        endian: Endian = .big,
+        delimiter: String = String(defaultDelimiter),
+        newline: Newline = .lf
+        ) throws where T.CodeUnit == UInt32 {
+
+        let config = Configuration(delimiter: delimiter, newline: newline)
+        try self.init(stream: stream, configuration: config) { (scalar: UnicodeScalar) throws in
+            var error: CSVError?
+            codecType.encode(scalar) { (code: UInt32) in
+                var code = (endian == .big) ? code.bigEndian : code.littleEndian
+                withUnsafeBytes(of: &code) { (buffer) -> Void in
+                    let count = stream.write(buffer.baseAddress!.assumingMemoryBound(to: UInt8.self),
+                                             maxLength: buffer.count)
+                    if count != buffer.count {
+                        error = CSVError.cannotWriteStream
+                    }
+                }
+            }
+            if let error = error {
+                throw error
+            }
+        }
+    }
+
+}
+
+extension CSVWriter {
+
+    public func beginNewRow() {
+        isFirstField = true
+    }
+
+    public func write(field value: String, quoted: Bool = false) throws {
+        if isFirstRow {
+            isFirstRow = false
+        } else {
+            if isFirstField {
+                try configuration.newline.unicodeScalars.forEach(writeScalar)
+            }
+        }
+
+        if isFirstField {
+            isFirstField = false
+        } else {
+            try configuration.delimiter.unicodeScalars.forEach(writeScalar)
+        }
+
+        var value = value
+
+        var quoted = quoted
+        if !quoted {
+            if value.contains("\"") || value.contains(configuration.delimiter) || value.contains("\r") || value.contains("\n") {
+                quoted = true
+            }
+        }
+
+        if quoted {
+            value = value.replacingOccurrences(of: DQUOTE_STR, with: DQUOTE2_STR)
+            try writeScalar(DQUOTE)
+        }
+
+        try value.unicodeScalars.forEach(writeScalar)
+
+        if quoted {
+            try writeScalar(DQUOTE)
+        }
+    }
+
+    public func write(row values: [String], quotedAtIndex: ((Int) -> Bool) = { _ in false }) throws {
+        beginNewRow()
+        for (i, value) in values.enumerated() {
+            try write(field: value, quoted: quotedAtIndex(i))
+        }
+    }
+
+}

Sources/CSV/Endian.swift

@@ -0,0 +1,19 @@
+//
+//  Endian.swift
+//  CSV
+//
+//  Created by Yasuhiro Hatta on 2016/06/21.
+//  Copyright © 2016 yaslab. All rights reserved.
+//
+
+/// Represents byte order.
+public enum Endian {
+
+    /// Big endian.
+    case big
+    /// Little endian.
+    case little
+    /// Multibyte character sets.
+    case unknown
+
+}

Sources/CSV/Legacy.swift

@@ -0,0 +1,12 @@
+//
+//  Legacy.swift
+//  CSV
+//
+//  Created by Yasuhiro Hatta on 2016/06/11.
+//  Copyright © 2016 yaslab. All rights reserved.
+//
+
+@available(*, deprecated, renamed: "CSVReader")
+public typealias CSV = CSVReader
+
+extension CSVReader: Sequence { }

Sources/CSV/UnicodeIterator.swift

@@ -0,0 +1,35 @@
+//
+//  UnicodeIterator.swift
+//  CSV
+//
+//  Created by Yasuhiro Hatta on 2016/06/20.
+//  Copyright © 2016 yaslab. All rights reserved.
+//
+
+internal class UnicodeIterator<
+    Input: IteratorProtocol,
+    InputEncoding: UnicodeCodec>: IteratorProtocol
+    where InputEncoding.CodeUnit == Input.Element {
+
+    private var input: Input
+    private var inputEncoding: InputEncoding
+    internal var errorHandler: ((Error) -> Void)?
+
+    internal init(input: Input, inputEncodingType: InputEncoding.Type) {
+        self.input = input
+        self.inputEncoding = inputEncodingType.init()
+    }
+
+    internal func next() -> UnicodeScalar? {
+        switch inputEncoding.decode(&input) {
+        case .scalarValue(let c):
+            return c
+        case .emptyInput:
+            return nil
+        case .error:
+            errorHandler?(CSVError.unicodeDecoding)
+            return nil
+        }
+    }
+
+}

Sources/CSVError.swift

@@ -1,17 +0,0 @@
-//
-//  CSVError.swift
-//  CSV
-//
-//  Created by Yasuhiro Hatta on 2016/06/11.
-//
-//
-
-import Foundation
-
-public enum CSVError: ErrorType {
-    case ParameterError
-    case StreamError
-    case HeaderReadError
-    case MemoryAllocationFailed
-    case StringEncodingMismatch
-}

Sources/CSVVersion.h

@@ -3,7 +3,7 @@
 //  CSV
 //
 //  Created by Yasuhiro Hatta on 2016/06/11.
-//
+//  Copyright © 2016 yaslab. All rights reserved.
 //
 
 @import Foundation;

Sources/Info.plist

@@ -15,7 +15,7 @@
 	<key>CFBundlePackageType</key>
 	<string>FMWK</string>
 	<key>CFBundleShortVersionString</key>
-	<string>0.1.0</string>
+	<string>$(MARKETING_VERSION)</string>
 	<key>CFBundleSignature</key>
 	<string>????</string>
 	<key>CFBundleVersion</key>

Tests/CSV/CSVReaderTests.swift

@@ -1,229 +0,0 @@
-//
-//  CSVReaderTests.swift
-//  CSV
-//
-//  Created by Yasuhiro Hatta on 2016/06/11.
-//
-//
-
-import XCTest
-@testable import CSV
-
-class CSVReaderTests: XCTestCase {
-
-    func testExample1() {
-        let csv = "abab,cdcd,efef"
-        let encoding = NSUTF8StringEncoding
-        let records = parseCSV(csv, encoding: encoding)
-        XCTAssertEqual(records[0], ["abab", "cdcd", "efef"])
-    }
-
-    func testExample2() {
-        let csv = "abab,\"cdcd\",efef"
-        let encoding = NSUTF8StringEncoding
-        let records = parseCSV(csv, encoding: encoding)
-        XCTAssertEqual(records[0], ["abab", "cdcd", "efef"])
-    }
-
-    func testExample3() {
-        let csv = "abab,cdcd,efef\nzxcv,asdf,qwer"
-        let encoding = NSUTF8StringEncoding
-        let records = parseCSV(csv, encoding: encoding)
-        XCTAssertEqual(records[0], ["abab", "cdcd", "efef"])
-        XCTAssertEqual(records[1], ["zxcv", "asdf", "qwer"])
-    }
-
-    func testExample4() {
-        let csv = "abab,\"cd,cd\",efef"
-        let encoding = NSUTF8StringEncoding
-        let records = parseCSV(csv, encoding: encoding)
-        XCTAssertEqual(records[0], ["abab", "cd,cd", "efef"])
-    }
-
-    func testExample5() {
-        let csv = "abab,cdcd,efef\r\nzxcv,asdf,qwer"
-        let encoding = NSUTF8StringEncoding
-        let records = parseCSV(csv, encoding: encoding)
-        XCTAssertEqual(records[0], ["abab", "cdcd", "efef"])
-        XCTAssertEqual(records[1], ["zxcv", "asdf", "qwer"])
-    }
-
-    func testExample6() {
-        let csv = "abab,\"\"\"cdcd\",efef\r\nzxcv,asdf,qwer"
-        let encoding = NSUTF8StringEncoding
-        let records = parseCSV(csv, encoding: encoding)
-        XCTAssertEqual(records[0], ["abab", "\"cdcd", "efef"])
-        XCTAssertEqual(records[1], ["zxcv", "asdf", "qwer"])
-    }
-
-    func testExample7() {
-        let csv = "abab,cdcd,efef\r\nzxcv,asdf,\"qw\"\"er\""
-        let encoding = NSUTF8StringEncoding
-        let records = parseCSV(csv, encoding: encoding)
-        XCTAssertEqual(records[0], ["abab", "cdcd", "efef"])
-        XCTAssertEqual(records[1], ["zxcv", "asdf", "qw\"er"])
-    }
-
-    func testExample8() {
-        let csv = "abab,,cdcd,efef\r\nzxcv,asdf,\"qw\"\"er\","
-        let encoding = NSUTF8StringEncoding
-        let records = parseCSV(csv, encoding: encoding)
-        XCTAssertEqual(records[0], ["abab", "", "cdcd", "efef"])
-        XCTAssertEqual(records[1], ["zxcv", "asdf", "qw\"er", ""])
-    }
-
-    func testExample9() {
-        let csv = "abab,,cdcd,efef\r\nzxcv,asdf,\"qw\"\"er\",\r"
-        let encoding = NSUTF8StringEncoding
-        let records = parseCSV(csv, encoding: encoding)
-        XCTAssertEqual(records.count, 2)
-        XCTAssertEqual(records[0], ["abab", "", "cdcd", "efef"])
-        XCTAssertEqual(records[1], ["zxcv", "asdf", "qw\"er", ""])
-    }
-
-    func testExample10() {
-        let csv = "abab,,cdcd,efef\r\nzxcv,asdf,\"qw\"\"er\",\r\n"
-        let encoding = NSUTF8StringEncoding
-        let records = parseCSV(csv, encoding: encoding)
-        XCTAssertEqual(records.count, 2)
-        XCTAssertEqual(records[0], ["abab", "", "cdcd", "efef"])
-        XCTAssertEqual(records[1], ["zxcv", "asdf", "qw\"er", ""])
-    }
-
-    func testExample11() {
-        let csv = "abab,,cdcd,efef\r\nzxcv,asdf,\"qw\"\"er\",\n"
-        let encoding = NSUTF8StringEncoding
-        let records = parseCSV(csv, encoding: encoding)
-        XCTAssertEqual(records.count, 2)
-        XCTAssertEqual(records[0], ["abab", "", "cdcd", "efef"])
-        XCTAssertEqual(records[1], ["zxcv", "asdf", "qw\"er", ""])
-    }
-
-    func testExample12() {
-        let csv = "abab,,\"\rcdcd\n\",efef\r\nzxcv,asdf,\"qw\"\"er\",\n"
-        let encoding = NSUTF8StringEncoding
-        let records = parseCSV(csv, encoding: encoding)
-        XCTAssertEqual(records.count, 2)
-        XCTAssertEqual(records[0], ["abab", "", "\rcdcd\n", "efef"])
-        XCTAssertEqual(records[1], ["zxcv", "asdf", "qw\"er", ""])
-    }
-
-    func testEncodingWithoutBOM() {
-        var index = 0
-        let csv = "abab,,cdcd,efef\r\nzxcv,asdf,\"qw\"\"er\","
-        for encoding in allEncodings() {
-            print("index: \(index)")
-            let records = parseCSV(csv, encoding: encoding)
-            XCTAssertEqual(records[0], ["abab", "", "cdcd", "efef"])
-            XCTAssertEqual(records[1], ["zxcv", "asdf", "qw\"er", ""])
-            index += 1
-        }
-    }
-
-    func testUTF8WithBOM() {
-        let csv = "abab,,cdcd,efef\r\nzxcv,asdf,\"qw\"\"er\","
-        let encoding = NSUTF8StringEncoding
-        let mutableData = NSMutableData()
-        mutableData.appendBytes(utf8BOM, length: utf8BOM.count)
-        mutableData.appendData(csv.dataUsingEncoding(encoding)!)
-        let records = parseData(mutableData, encoding: encoding)
-        XCTAssertEqual(records[0], ["abab", "", "cdcd", "efef"])
-        XCTAssertEqual(records[1], ["zxcv", "asdf", "qw\"er", ""])
-    }
-
-    func testUTF16WithNativeEndianBOM() {
-        let csv = "abab,,cdcd,efef\r\nzxcv,asdf,\"qw\"\"er\","
-        let encoding = NSUTF16StringEncoding
-        let records = parseCSV(csv, encoding: encoding)
-        XCTAssertEqual(records[0], ["abab", "", "cdcd", "efef"])
-        XCTAssertEqual(records[1], ["zxcv", "asdf", "qw\"er", ""])
-    }
-
-    func testUTF16WithBigEndianBOM() {
-        let csv = "abab,,cdcd,efef\r\nzxcv,asdf,\"qw\"\"er\","
-        let encoding = NSUTF16StringEncoding
-        let mutableData = NSMutableData()
-        mutableData.appendBytes(utf16BigEndianBOM, length: utf16BigEndianBOM.count)
-        mutableData.appendData(csv.dataUsingEncoding(NSUTF16BigEndianStringEncoding)!)
-        let records = parseData(mutableData, encoding: encoding)
-        XCTAssertEqual(records[0], ["abab", "", "cdcd", "efef"])
-        XCTAssertEqual(records[1], ["zxcv", "asdf", "qw\"er", ""])
-    }
-
-    func testUTF16WithLittleEndianBOM() {
-        let csv = "abab,,cdcd,efef\r\nzxcv,asdf,\"qw\"\"er\","
-        let encoding = NSUTF16StringEncoding
-        let mutableData = NSMutableData()
-        mutableData.appendBytes(utf16LittleEndianBOM, length: utf16LittleEndianBOM.count)
-        mutableData.appendData(csv.dataUsingEncoding(NSUTF16LittleEndianStringEncoding)!)
-        let records = parseData(mutableData, encoding: encoding)
-        XCTAssertEqual(records[0], ["abab", "", "cdcd", "efef"])
-        XCTAssertEqual(records[1], ["zxcv", "asdf", "qw\"er", ""])
-    }
-
-    func testUTF32WithNativeEndianBOM() {
-        let csv = "abab,,cdcd,efef\r\nzxcv,asdf,\"qw\"\"er\","
-        let encoding = NSUTF32StringEncoding
-        let records = parseCSV(csv, encoding: encoding)
-        XCTAssertEqual(records[0], ["abab", "", "cdcd", "efef"])
-        XCTAssertEqual(records[1], ["zxcv", "asdf", "qw\"er", ""])
-    }
-
-    func testUTF32WithBigEndianBOM() {
-        let csv = "abab,,cdcd,efef\r\nzxcv,asdf,\"qw\"\"er\","
-        let encoding = NSUTF32StringEncoding
-        let mutableData = NSMutableData()
-        mutableData.appendBytes(utf32BigEndianBOM, length: utf32BigEndianBOM.count)
-        mutableData.appendData(csv.dataUsingEncoding(NSUTF32BigEndianStringEncoding)!)
-        let records = parseData(mutableData, encoding: encoding)
-        XCTAssertEqual(records[0], ["abab", "", "cdcd", "efef"])
-        XCTAssertEqual(records[1], ["zxcv", "asdf", "qw\"er", ""])
-    }
-
-    func testUTF32WithLittleEndianBOM() {
-        let csv = "abab,,cdcd,efef\r\nzxcv,asdf,\"qw\"\"er\","
-        let encoding = NSUTF32StringEncoding
-        let mutableData = NSMutableData()
-        mutableData.appendBytes(utf32LittleEndianBOM, length: utf32LittleEndianBOM.count)
-        mutableData.appendData(csv.dataUsingEncoding(NSUTF32LittleEndianStringEncoding)!)
-        let records = parseData(mutableData, encoding: encoding)
-        XCTAssertEqual(records[0], ["abab", "", "cdcd", "efef"])
-        XCTAssertEqual(records[1], ["zxcv", "asdf", "qw\"er", ""])
-    }
-
-    func allEncodings() -> [NSStringEncoding] {
-        return [
-            // multi-byte character encodings
-            NSShiftJISStringEncoding,
-            NSJapaneseEUCStringEncoding,
-            NSUTF8StringEncoding,
-            // wide character encodings
-            NSUTF16BigEndianStringEncoding,
-            NSUTF16LittleEndianStringEncoding,
-            NSUTF32BigEndianStringEncoding,
-            NSUTF32LittleEndianStringEncoding,
-        ]
-    }
-
-    func parseCSV(csv: String, encoding: NSStringEncoding) -> [[String]] {
-        let data = csv.dataUsingEncoding(encoding)!
-        return parseData(data, encoding: encoding)
-    }
-
-    func parseData(data: NSData, encoding: NSStringEncoding) -> [[String]] {
-        let stream = NSInputStream(data: data)
-        let reader = try! CSV(stream: stream, encoding: encoding)
-        var records = [[String]]()
-        for row in reader {
-            records.append(row)
-        }
-        return records
-    }
-
-    static var allTests : [(String, (CSVReaderTests) -> () throws -> Void)] {
-        return [
-            ("testExample1", testExample1),
-        ]
-    }
-
-}

Tests/CSV/CSVTests.swift

@@ -1,72 +0,0 @@
-//
-//  CSVTests.swift
-//  CSV
-//
-//  Created by Yasuhiro Hatta on 2016/06/11.
-//
-//
-
-import XCTest
-@testable import CSV
-
-class CSVTests: XCTestCase {
-
-    func testSample1() {
-        let csv = "\"abc\",1,2\n\"cde\",3,4"
-        var i = 0
-        for row in try! CSV(string: csv) {
-            switch i {
-            case 0: XCTAssertEqual(row, ["abc", "1", "2"])
-            case 1: XCTAssertEqual(row, ["cde", "3", "4"])
-            default: break
-            }
-            i += 1
-        }
-        XCTAssertEqual(i, 2)
-    }
-    
-    func testSample2() {
-        let csv = "\"abc\",1,2\n\"cde\",3,4\n"
-        var i = 0
-        for row in try! CSV(string: csv) {
-            switch i {
-            case 0: XCTAssertEqual(row, ["abc", "1", "2"])
-            case 1: XCTAssertEqual(row, ["cde", "3", "4"])
-            default: break
-            }
-            i += 1
-        }
-        XCTAssertEqual(i, 2)
-    }
-
-    func testSample3() {
-        let csv = "\"abc\",1,2\n\"cde\",3,4\n "
-        var i = 0
-        for row in try! CSV(string: csv) {
-            switch i {
-            case 0: XCTAssertEqual(row, ["abc", "1", "2"])
-            case 1: XCTAssertEqual(row, ["cde", "3", "4"])
-            case 2: XCTAssertEqual(row, [" "])
-            default: break
-            }
-            i += 1
-        }
-        XCTAssertEqual(i, 3)
-    }
-
-    func testSample4() {
-        let csv = "\"abc\",1,2\n\n\"cde\",3,4"
-        var i = 0
-        for row in try! CSV(string: csv) {
-            switch i {
-            case 0: XCTAssertEqual(row, ["abc", "1", "2"])
-            case 1: XCTAssertEqual(row, [""])
-            case 2: XCTAssertEqual(row, ["cde", "3", "4"])
-            default: break
-            }
-            i += 1
-        }
-        XCTAssertEqual(i, 3)
-    }
-    
-}

Tests/CSVTests/BinaryReaderTests.swift

@@ -0,0 +1,105 @@
+//
+//  BinaryReaderTests.swift
+//  CSV
+//
+//  Created by Yasuhiro Hatta on 2018/11/15.
+//  Copyright © 2018 yaslab. All rights reserved.
+//
+
+import XCTest
+@testable import CSV
+
+class BinaryReaderTests: XCTestCase {
+
+    private func random(_ count: Int) -> [UInt8] {
+        var array = [UInt8]()
+        for _ in 0 ..< count {
+            array.append(UInt8.random(in: .min ... .max))
+        }
+        return array
+    }
+
+    func testReadUInt8WithSmallBuffer() {
+        let bytes = [0xcc] + random(99)
+        let stream = InputStream(data: Data(bytes))
+
+        do {
+            let reader = try BinaryReader(stream: stream, endian: .unknown, closeOnDeinit: true, bufferSize: 7)
+            for expected in bytes {
+                let actual = try reader.readUInt8()
+                XCTAssertEqual(actual, expected)
+            }
+        } catch {
+            XCTFail("\(error)")
+        }
+    }
+
+    func testReadUInt16BEWithSmallBuffer() {
+        let bytes = [0xcc] + random(99)
+        let stream = InputStream(data: Data(bytes))
+
+        do {
+            let reader = try BinaryReader(stream: stream, endian: .big, closeOnDeinit: true, bufferSize: 7)
+            for i in stride(from: 0, to: bytes.count, by: 2) {
+                let expected = (UInt16(bytes[i]) << 8) | UInt16(bytes[i + 1])
+                let actual = try reader.readUInt16()
+                XCTAssertEqual(actual, expected)
+            }
+        } catch {
+            XCTFail("\(error)")
+        }
+    }
+
+    func testReadUInt16LEWithSmallBuffer() {
+        let bytes = [0xcc] + random(99)
+        let stream = InputStream(data: Data(bytes))
+
+        do {
+            let reader = try BinaryReader(stream: stream, endian: .little, closeOnDeinit: true, bufferSize: 7)
+            for i in stride(from: 0, to: bytes.count, by: 2) {
+                let expected = UInt16(bytes[i]) | (UInt16(bytes[i + 1]) << 8)
+                let actual = try reader.readUInt16()
+                XCTAssertEqual(actual, expected)
+            }
+        } catch {
+            XCTFail("\(error)")
+        }
+    }
+
+    func testReadUInt32BEWithSmallBuffer() {
+        let bytes = [0xcc] + random(99)
+        let stream = InputStream(data: Data(bytes))
+
+        do {
+            let reader = try BinaryReader(stream: stream, endian: .big, closeOnDeinit: true, bufferSize: 7)
+            for i in stride(from: 0, to: bytes.count, by: 4) {
+                let expected =
+                    (UInt32(bytes[i    ]) << 24) | (UInt32(bytes[i + 1]) << 16) |
+                    (UInt32(bytes[i + 2]) <<  8) | (UInt32(bytes[i + 3])      )
+                let actual = try reader.readUInt32()
+                XCTAssertEqual(actual, expected)
+            }
+        } catch {
+            XCTFail("\(error)")
+        }
+    }
+
+    func testReadUInt32LEWithSmallBuffer() {
+        let bytes = [0xcc] + random(99)
+        let stream = InputStream(data: Data(bytes))
+
+        do {
+            let reader = try BinaryReader(stream: stream, endian: .little, closeOnDeinit: true, bufferSize: 7)
+            for i in stride(from: 0, to: bytes.count, by: 4) {
+                let expected =
+                    (UInt32(bytes[i    ])      ) | (UInt32(bytes[i + 1]) <<  8) |
+                    (UInt32(bytes[i + 2]) << 16) | (UInt32(bytes[i + 3]) << 24)
+                let actual = try reader.readUInt32()
+                XCTAssertEqual(actual, expected)
+            }
+        } catch {
+            XCTFail("\(error)")
+        }
+    }
+
+}

Tests/CSVTests/CSVReaderTests.swift

@@ -0,0 +1,242 @@
+//
+//  CSVReaderTests.swift
+//  CSV
+//
+//  Created by Yasuhiro Hatta on 2016/06/11.
+//  Copyright © 2016 yaslab. All rights reserved.
+//
+
+import XCTest
+@testable import CSV
+
+class CSVReaderTests: XCTestCase {
+
+    func testOneLine() {
+        let csv = "\"abc\",1,2"
+        var i = 0
+
+        for record in AnyIterator(try! CSVReader(string: csv)) {
+            switch i {
+            case 0: XCTAssertEqual(record, ["abc", "1", "2"])
+            default: break
+            }
+            i += 1
+        }
+        XCTAssertEqual(i, 1)
+    }
+
+    func testTwoLines() {
+        let csv = "\"abc\",1,2\n\"cde\",3,4"
+        var i = 0
+        for record in AnyIterator(try! CSVReader(string: csv)) {
+            switch i {
+            case 0: XCTAssertEqual(record, ["abc", "1", "2"])
+            case 1: XCTAssertEqual(record, ["cde", "3", "4"])
+            default: break
+            }
+            i += 1
+        }
+        XCTAssertEqual(i, 2)
+    }
+
+    func testLastLineIsEmpty() {
+        let csv = "\"abc\",1,2\n\"cde\",3,4\n"
+        var i = 0
+        for record in AnyIterator(try! CSVReader(string: csv)) {
+            switch i {
+            case 0: XCTAssertEqual(record, ["abc", "1", "2"])
+            case 1: XCTAssertEqual(record, ["cde", "3", "4"])
+            default: break
+            }
+            i += 1
+        }
+        XCTAssertEqual(i, 2)
+    }
+
+    func testLastLineIsWhiteSpace() {
+        let csv = "\"abc\",1,2\n\"cde\",3,4\n "
+        var i = 0
+        for record in AnyIterator(try! CSVReader(string: csv)) {
+            switch i {
+            case 0: XCTAssertEqual(record, ["abc", "1", "2"])
+            case 1: XCTAssertEqual(record, ["cde", "3", "4"])
+            case 2: XCTAssertEqual(record, [" "])
+            default: break
+            }
+            i += 1
+        }
+        XCTAssertEqual(i, 3)
+    }
+
+    func testMiddleLineIsEmpty() {
+        let csv = "\"abc\",1,2\n\n\"cde\",3,4"
+        var i = 0
+        for record in AnyIterator(try! CSVReader(string: csv)) {
+            switch i {
+            case 0: XCTAssertEqual(record, ["abc", "1", "2"])
+            case 1: XCTAssertEqual(record, [""])
+            case 2: XCTAssertEqual(record, ["cde", "3", "4"])
+            default: break
+            }
+            i += 1
+        }
+        XCTAssertEqual(i, 3)
+    }
+
+    func testCommaInQuotationMarks() {
+        let csvString = "abab,\"cd,cd\",efef"
+        let csv = try! CSVReader(string: csvString)
+        let record = csv.next()!
+        XCTAssertEqual(record, ["abab", "cd,cd", "efef"])
+    }
+
+    func testEscapedQuotationMark1() {
+        let csvString = "abab,\"\"\"cdcd\",efef\r\nzxcv,asdf,qwer"
+        let csv = try! CSVReader(string: csvString)
+        var record = csv.next()!
+        XCTAssertEqual(record, ["abab", "\"cdcd", "efef"])
+        record = csv.next()!
+        XCTAssertEqual(record, ["zxcv", "asdf", "qwer"])
+    }
+
+    func testEscapedQuotationMark2() {
+        let csvString = "abab,cdcd,efef\r\nzxcv,asdf,\"qw\"\"er\""
+        let csv = try! CSVReader(string: csvString)
+        var record = csv.next()!
+        XCTAssertEqual(record, ["abab", "cdcd", "efef"])
+        record = csv.next()!
+        XCTAssertEqual(record, ["zxcv", "asdf", "qw\"er"])
+    }
+
+    func testEmptyField() {
+        let csvString = "abab,,cdcd,efef\r\nzxcv,asdf,\"qw\"\"er\","
+        let csv = try! CSVReader(string: csvString)
+        var record = csv.next()!
+        XCTAssertEqual(record, ["abab", "", "cdcd", "efef"])
+        record = csv.next()!
+        XCTAssertEqual(record, ["zxcv", "asdf", "qw\"er", ""])
+    }
+
+    func testDoubleQuoteBeforeLineBreak1() {
+        let csv = "\"abc\",1,\"2\"\n\n\"cde\",3,\"4\""
+        var i = 0
+        for record in AnyIterator(try! CSVReader(string: csv)) {
+            switch i {
+            case 0: XCTAssertEqual(record, ["abc", "1", "2"])
+            case 1: XCTAssertEqual(record, [""])
+            case 2: XCTAssertEqual(record, ["cde", "3", "4"])
+            default: break
+            }
+            i += 1
+        }
+        XCTAssertEqual(i, 3)
+    }
+
+    func testDoubleQuoteBeforeLineBreak2() {
+        let csv = "\"abc\",1,\"2\"\r\n\"cde\",3,\"4\"\r"
+        var i = 0
+        for record in AnyIterator(try! CSVReader(string: csv)) {
+            switch i {
+            case 0: XCTAssertEqual(record, ["abc", "1", "2"])
+            case 1: XCTAssertEqual(record, ["cde", "3", "4"])
+            default: break
+            }
+            i += 1
+        }
+        XCTAssertEqual(i, 2)
+    }
+
+    func testCSVState1() {
+        let it = "あ,い1,\"う\",えお\n,,x,".unicodeScalars.makeIterator()
+        let config = CSVReader.Configuration(hasHeaderRow: false,
+                                             trimFields: false,
+                                             delimiter: ",",
+                                             whitespaces: .whitespaces)
+        let csv = try! CSVReader(iterator: it, configuration: config)
+
+        var records = [[String]]()
+
+        while let record = csv.next() {
+            records.append(record)
+        }
+        XCTAssertEqual(records.count, 2)
+        XCTAssertEqual(records[0], ["あ", "い1", "う", "えお"])
+        XCTAssertEqual(records[1], ["", "", "x", ""])
+    }
+
+    func testSubscriptInt() {
+        let csvString = "a,bb,ccc"
+        let csv = try! CSVReader(string: csvString)
+        for record in AnyIterator(csv) {
+            XCTAssertEqual(record[0], "a")
+            XCTAssertEqual(record[1], "bb")
+            XCTAssertEqual(record[2], "ccc")
+        }
+    }
+
+    func testHasHeaderRow1() {
+        let csvString = "key1,key2\nvalue1,value2"
+        let csv = try! CSVReader(string: csvString, hasHeaderRow: true)
+        XCTAssertEqual(csv.headerRow, ["key1", "key2"])
+        XCTAssertNil(csv.currentRow)
+        csv.next()
+        XCTAssertEqual(csv.currentRow, ["value1", "value2"])
+    }
+
+    func testHasHeaderRow2() {
+        let csvString = "key1,key2\n"
+        let csv = try! CSVReader(string: csvString, hasHeaderRow: true)
+        XCTAssertEqual(csv.headerRow, ["key1", "key2"])
+        XCTAssertNil(csv.currentRow)
+        csv.next()
+        XCTAssertNil(csv.currentRow)
+    }
+
+    func testHasHeaderRow3() {
+        let csvString = "key1,key2"
+        let csv = try! CSVReader(string: csvString, hasHeaderRow: true)
+        XCTAssertEqual(csv.headerRow, ["key1", "key2"])
+        XCTAssertNil(csv.currentRow)
+        csv.next()
+        XCTAssertNil(csv.currentRow)
+    }
+
+    func testHasHeaderRow4() {
+        let csvString = ""
+        do {
+            _ = try CSVReader(string: csvString, hasHeaderRow: true)
+            XCTFail("CSVReader did not throw an error")
+        } catch CSVError.cannotReadHeaderRow {
+            // Success
+        } catch {
+            XCTFail("\(error)")
+        }
+    }
+
+    func testSubscript1() {
+        let csvString = "key1,key2\nvalue1,value2"
+        let csv = try! CSVReader(string: csvString, hasHeaderRow: true)
+        csv.next()
+        XCTAssertEqual(csv["key1"], "value1")
+        XCTAssertEqual(csv["key2"], "value2")
+        XCTAssertNil(csv["key9"])
+    }
+
+    func testSubscript2() {
+        let csvString = "key1,key2\nvalue1"
+        let csv = try! CSVReader(string: csvString, hasHeaderRow: true)
+        csv.next()
+        XCTAssertEqual(csv["key1"], "value1")
+        XCTAssertEqual(csv["key2"], "")
+        XCTAssertNil(csv["key9"])
+    }
+
+    func testToArray() {
+        let csvString = "1,2,3,4,5\n6,7,8,9,0"
+        let csv = try! CSVReader(string: csvString)
+        let records = AnyIterator(csv).map { $0 }
+        XCTAssertEqual(records[0], ["1", "2", "3", "4", "5"])
+        XCTAssertEqual(records[1], ["6", "7", "8", "9", "0"])
+    }
+
+}

Tests/CSVTests/CSVRowDecoderTests.swift

@@ -0,0 +1,634 @@
+//
+//  CSVRowDecoderTests.swift
+//  CSV
+//
+//  Created by Ian Grossberg on 9/11/18.
+//  Copyright © 2018 yaslab. All rights reserved.
+//
+
+import XCTest
+import CSV
+
+//===----------------------------------------------------------------------===//
+// Models
+//===----------------------------------------------------------------------===//
+
+fileprivate enum Enum: String, Decodable {
+    case first
+    case second
+}
+
+fileprivate protocol DecodableTest: Equatable {
+    var intKey: Int { get }
+    var stringKey: String { get }
+    var optionalStringKey: String? { get }
+    var dateKey: Date { get }
+    var enumKey: Enum { get }
+
+    static func headerRow() -> String
+    func toRow() -> String
+}
+
+extension DecodableTest {
+    fileprivate static func headerRow() -> String {
+        return "stringKey,optionalStringKey,intKey,ignored,dateKey,enumKey\n"
+    }
+    fileprivate func toRow() -> String {
+        var row = ""
+        row += "\(self.stringKey),"
+        row += "\(self.optionalStringKey ?? ""),"
+        row += "\(self.intKey),"
+        row += ","
+        row += "\"\(self.dateKey.timeIntervalSinceReferenceDate)\","
+        row += "\(self.enumKey.rawValue)"
+        row += "\n"
+        return row
+    }
+}
+
+extension Equatable where Self: DecodableTest {
+    fileprivate static func ==(left: Self, right: Self) -> Bool {
+        return left.intKey == right.intKey
+            && left.stringKey == right.stringKey
+            && left.optionalStringKey == right.optionalStringKey
+            && Int(left.dateKey.timeIntervalSince1970) == Int(right.dateKey.timeIntervalSince1970)
+            && left.enumKey == right.enumKey
+    }
+}
+
+//===----------------------------------------------------------------------===//
+// CSVRowDecoderTests
+//===----------------------------------------------------------------------===//
+
+class CSVRowDecoderTests: XCTestCase {
+
+    //===----------------------------------------------------------------------===//
+
+    fileprivate struct SupportedDecodableExample: Decodable, DecodableTest {
+        let intKey: Int
+        let stringKey: String
+        let optionalStringKey: String?
+        let dateKey: Date
+        let enumKey: Enum
+
+        static var examples: [SupportedDecodableExample] {
+            return [
+                SupportedDecodableExample(intKey: 12345, stringKey: "stringValue", optionalStringKey: nil, dateKey: Date(), enumKey: .first),
+                SupportedDecodableExample(intKey: 54321, stringKey: "stringValue2", optionalStringKey: "withValue", dateKey: Date(timeInterval: 100, since: Date()), enumKey: .second)
+            ]
+        }
+    }
+
+    func testNoHeader() {
+        let noHeaderStr = "あ,い1,\"う\",えお\n,,x,"
+        let noHeaderCSV = try! CSVReader(string: noHeaderStr, hasHeaderRow: false)
+
+        do {
+            let decoder = CSVRowDecoder()
+            let _ = try decoder.decode(SupportedDecodableExample.self, from: noHeaderCSV)
+            XCTFail("Expect DecodingError.typeMismatch Error thrown")
+        } catch {
+            // Success
+        }
+    }
+
+    func testNumberOfFieldsIsSmall() {
+        let csv = """
+            stringKey,intKey,optionalStringKey,dateKey,enumKey
+            string 0  0 first
+            string,0,,0,first
+            """
+        let reader = try! CSVReader(string: csv, hasHeaderRow: true)
+
+        do {
+            let decoder = CSVRowDecoder()
+            if reader.next() != nil {
+                _ = try decoder.decode(SupportedDecodableExample.self, from: reader)
+            }
+            XCTFail("decode<T>() did not threw error")
+        } catch let DecodingError.valueNotFound(_, context) {
+            // Success
+            XCTAssertEqual("intKey", context.codingPath.last!.stringValue)
+        } catch {
+            XCTFail("The error thrown is not a DecodingError.valueNotFound")
+        }
+    }
+
+    func testStringCodingKey() {
+        let exampleRecords = SupportedDecodableExample.examples
+
+        let header = SupportedDecodableExample.headerRow()
+        let allRows = exampleRecords.reduce(into: header) { $0 += $1.toRow() }
+
+        let headerCSV = try! CSVReader(string: allRows, hasHeaderRow: true)
+
+        var records = [SupportedDecodableExample]()
+        do {
+            let decoder = CSVRowDecoder()
+            while headerCSV.next() != nil {
+                try records.append(decoder.decode(SupportedDecodableExample.self, from: headerCSV))
+            }
+        } catch {
+            XCTFail("decode<T>() threw error: \(error)")
+            return
+        }
+        XCTAssertEqual(records.count, 2)
+        XCTAssertEqual(records[0], exampleRecords[0])
+        XCTAssertEqual(records[1], exampleRecords[1])
+    }
+
+    func testTypeInvalidDateFormat() {
+        let invalidFieldTypeStr = """
+            dateKey,stringKey,optionalStringKey,intKey,ignored
+            al;ksdjf;akjsdf,asldkj,,1234,
+            """
+        let invalidFieldTypeCSV = try! CSVReader(string: invalidFieldTypeStr, hasHeaderRow: true)
+
+        do {
+            let decoder = CSVRowDecoder()
+            while invalidFieldTypeCSV.next() != nil {
+                _ = try decoder.decode(SupportedDecodableExample.self, from: invalidFieldTypeCSV)
+            }
+            XCTFail("Expect DecodingError.dataCorrupted Error thrown")
+        } catch {
+            guard let error = error as? DecodingError else {
+                XCTFail("Expect DecodingError Error thrown")
+                return
+            }
+            switch error {
+            case let DecodingError.typeMismatch(type, context):
+                XCTAssert(type == Double.self)
+                XCTAssertEqual(context.codingPath[0].stringValue, "dateKey", "Type Mismatch Error on unexpected field")
+            default:
+                XCTFail("Expect DecodingError.dataCorrupted Error thrown, got \(error)")
+            }
+        }
+    }
+
+    //===----------------------------------------------------------------------===//
+
+    fileprivate struct IntKeyedDecodableExample: Decodable, DecodableTest {
+        private enum CodingKeys: Int, CodingKey {
+            case stringKey = 0
+            case optionalStringKey = 1
+            case intKey = 2
+            case dateKey = 4
+            case enumKey = 5
+        }
+
+        let intKey: Int
+        let stringKey: String
+        let optionalStringKey: String?
+        let dateKey: Date
+        let enumKey: Enum
+
+        static var examples: [IntKeyedDecodableExample] {
+            return [
+                IntKeyedDecodableExample(intKey: 12345, stringKey: "stringValue", optionalStringKey: nil, dateKey: Date(), enumKey: .first),
+                IntKeyedDecodableExample(intKey: 54321, stringKey: "stringValue2", optionalStringKey: "withValue", dateKey: Date(timeInterval: 100, since: Date()), enumKey: .second)
+            ]
+        }
+    }
+
+    func testIntCodingKey() {
+        let exampleRecords = IntKeyedDecodableExample.examples
+
+        let allRows = IntKeyedDecodableExample.examples.reduce(into: "") { $0 += $1.toRow() }
+
+        let headerCSV = try! CSVReader(string: allRows, hasHeaderRow: false)
+
+        var records = [IntKeyedDecodableExample]()
+        do {
+            let decoder = CSVRowDecoder()
+            while headerCSV.next() != nil {
+                try records.append(decoder.decode(IntKeyedDecodableExample.self, from: headerCSV))
+            }
+        } catch {
+            XCTFail("decode<T>() threw error: \(error)")
+            return
+        }
+        XCTAssertEqual(records.count, 2)
+        XCTAssertEqual(records[0], exampleRecords[0])
+        XCTAssertEqual(records[1], exampleRecords[1])
+    }
+
+    func testIntCodingKeyWhileIgnoringHeaders() {
+        let exampleRecords = IntKeyedDecodableExample.examples
+
+        let header = IntKeyedDecodableExample.headerRow()
+        let allRows = exampleRecords.reduce(into: header) { $0 += $1.toRow() }
+
+        let headerCSV = try! CSVReader(string: allRows, hasHeaderRow: true)
+
+        var records = [IntKeyedDecodableExample]()
+        do {
+            let decoder = CSVRowDecoder()
+            while headerCSV.next() != nil {
+                try records.append(decoder.decode(IntKeyedDecodableExample.self, from: headerCSV))
+            }
+        } catch {
+            XCTFail("decode<T>() threw error: \(error)")
+            return
+        }
+        XCTAssertEqual(records.count, 2)
+        XCTAssertEqual(records[0], exampleRecords[0])
+        XCTAssertEqual(records[1], exampleRecords[1])
+    }
+
+    func testTypeMismatch() {
+        let exampleRecords = SupportedDecodableExample.examples
+
+        let invalidFieldTypeStr = """
+            stringKey,optionalStringKey,intKey,ignored
+            \(exampleRecords[0].stringKey),,this is a string where we expect an Int,
+            \(exampleRecords[1].stringKey),\(exampleRecords[1].optionalStringKey!),\(exampleRecords[1].intKey),
+            """
+        let invalidFieldTypeCSV = try! CSVReader(string: invalidFieldTypeStr, hasHeaderRow: true)
+
+        do {
+            let decoder = CSVRowDecoder()
+            while invalidFieldTypeCSV.next() != nil {
+                _ = try decoder.decode(IntKeyedDecodableExample.self, from: invalidFieldTypeCSV)
+            }
+            XCTFail("Expect DecodingError.typeMismatch Error thrown")
+        } catch {
+            guard let error = error as? DecodingError else {
+                XCTFail("Expect DecodingError Error thrown")
+                return
+            }
+            switch error {
+            case let .typeMismatch(_, context):
+                XCTAssertEqual(context.codingPath[0].stringValue, "intKey", "Type Mismatch Error on unexpected field")
+            default:
+                XCTFail("Expect Type Mismatch Error thrown")
+            }
+        }
+    }
+
+    //===----------------------------------------------------------------------===//
+
+    fileprivate struct UnsupportedDecodableExample: Decodable, Equatable {
+        let enumKey: Enum
+
+        static var examples: [UnsupportedDecodableExample] {
+            return [
+                UnsupportedDecodableExample(enumKey: .first),
+                UnsupportedDecodableExample(enumKey: .second)
+            ]
+        }
+    }
+
+    func testUnsupportedDecodableField() {
+        let exampleRecords = UnsupportedDecodableExample.examples
+
+        let headerStr = """
+            enumKey,optionalStringKey,intKey,ignored,dateKey
+            \(exampleRecords[0].enumKey),"hiiiii",123445,,
+            \(exampleRecords[1].enumKey),,54231,,
+            \("third"),,54231,,
+            """
+        let headerCSV = try! CSVReader(string: headerStr, hasHeaderRow: true)
+
+        var records = [UnsupportedDecodableExample]()
+        do {
+            let decoder = CSVRowDecoder()
+            while headerCSV.next() != nil {
+                try records.append(decoder.decode(UnsupportedDecodableExample.self, from: headerCSV))
+            }
+            XCTFail("Expect Data Corrupted Error thrown")
+        } catch {
+            XCTAssertEqual(records.count, 2)
+            guard let decodingError = error as? DecodingError else {
+                XCTFail("Expect DecodingError Error thrown, instead we go \(error)")
+                return
+            }
+            switch decodingError {
+            case let .dataCorrupted(context):
+                guard context.codingPath[0].stringValue == "enumKey" else {
+                    XCTFail("Data Corrupted Error on unexpected field")
+                    return
+                }
+            default:
+                XCTFail("Expect Data Corrupted Error thrown, instead we got \(decodingError)")
+            }
+        }
+    }
+
+    //===----------------------------------------------------------------------===//
+
+    fileprivate struct IntegerDecodableExample: Decodable {
+        let intValue: Int
+        let int8Value: Int8
+        let int16Value: Int16
+        let int32Value: Int32
+        let int64Value: Int64
+        let uintValue: UInt
+        let uint8Value: UInt8
+        let uint16Value: UInt16
+        let uint32Value: UInt32
+        let uint64Value: UInt64
+    }
+
+    func testDecodeInteger() {
+        let csv = """
+            intValue,int8Value,int16Value,int32Value,int64Value,uintValue,uint8Value,uint16Value,uint32Value,uint64Value
+            0,123,4567,89012,345678901234567890,1,124,4568,89013,345678901234567891
+            """
+        do {
+            let reader = try CSVReader(string: csv, hasHeaderRow: true)
+            reader.next()
+
+            let decoder = CSVRowDecoder()
+            let row = try decoder.decode(IntegerDecodableExample.self, from: reader)
+            XCTAssertEqual(row.intValue, 0)
+            XCTAssertEqual(row.int8Value, 123)
+            XCTAssertEqual(row.int16Value, 4567)
+            XCTAssertEqual(row.int32Value, 89012)
+            XCTAssertEqual(row.int64Value, 345678901234567890)
+            XCTAssertEqual(row.uintValue, 1)
+            XCTAssertEqual(row.uint8Value, 124)
+            XCTAssertEqual(row.uint16Value, 4568)
+            XCTAssertEqual(row.uint32Value, 89013)
+            XCTAssertEqual(row.uint64Value, 345678901234567891)
+        } catch {
+            XCTFail("\(error)")
+        }
+    }
+
+    //===----------------------------------------------------------------------===//
+
+    fileprivate struct FloatDecodableExample: Decodable {
+        let floatValue: Float
+        let doubleValue: Double
+    }
+
+    func testDecodeFloat() {
+        let csv = """
+            floatValue,doubleValue
+            123.456,7890.1234
+            """
+        do {
+            let reader = try CSVReader(string: csv, hasHeaderRow: true)
+            reader.next()
+
+            let decoder = CSVRowDecoder()
+            let row = try decoder.decode(FloatDecodableExample.self, from: reader)
+            XCTAssertEqual(row.floatValue, 123.456)
+            XCTAssertEqual(row.doubleValue, 7890.1234)
+        } catch {
+            XCTFail("\(error)")
+        }
+    }
+
+    //===----------------------------------------------------------------------===//
+
+    fileprivate struct BoolDecodingStrategyExample: Decodable {
+        let falseValue: Bool
+        let trueValue: Bool
+    }
+
+    func testBoolDecodingStrategy_default() {
+        let csv = """
+            falseValue,trueValue
+            false,true
+            """
+        do {
+            let reader = try CSVReader(string: csv, hasHeaderRow: true)
+            reader.next()
+
+            let decoder = CSVRowDecoder()
+            decoder.boolDecodingStrategy = .default
+            let row = try decoder.decode(BoolDecodingStrategyExample.self, from: reader)
+            XCTAssertEqual(row.falseValue, false)
+            XCTAssertEqual(row.trueValue, true)
+        } catch {
+            XCTFail("\(error)")
+        }
+    }
+
+    func testBoolDecodingStrategy_custom() {
+        let csv = """
+            falseValue,trueValue
+            0,1
+            """
+        do {
+            let reader = try CSVReader(string: csv, hasHeaderRow: true)
+            reader.next()
+
+            let decoder = CSVRowDecoder()
+            decoder.boolDecodingStrategy = .custom({ $0 != "0" })
+            let row = try decoder.decode(BoolDecodingStrategyExample.self, from: reader)
+            XCTAssertEqual(row.falseValue, false)
+            XCTAssertEqual(row.trueValue, true)
+        } catch {
+            XCTFail("\(error)")
+        }
+    }
+
+    //===----------------------------------------------------------------------===//
+
+    fileprivate struct DateDecodingStrategyExample: Decodable {
+        let date: Date
+    }
+
+    func testDateDecodingStrategy_deferredToDate() {
+        let expected = Date()
+        let csv = """
+            date
+            \(expected.timeIntervalSinceReferenceDate)
+            """
+        do {
+            let reader = try CSVReader(string: csv, hasHeaderRow: true)
+            reader.next()
+
+            let decoder = CSVRowDecoder()
+            decoder.dateDecodingStrategy = .deferredToDate
+            let row = try decoder.decode(DateDecodingStrategyExample.self, from: reader)
+            XCTAssertEqual(row.date, expected)
+        } catch {
+            XCTFail("\(error)")
+        }
+    }
+
+    func testDateDecodingStrategy_secondsSince1970() {
+        let expected = Date()
+        let csv = """
+        date
+        \(expected.timeIntervalSince1970)
+        """
+        do {
+            let reader = try CSVReader(string: csv, hasHeaderRow: true)
+            reader.next()
+
+            let decoder = CSVRowDecoder()
+            decoder.dateDecodingStrategy = .secondsSince1970
+            let row = try decoder.decode(DateDecodingStrategyExample.self, from: reader)
+            XCTAssertEqual(row.date.timeIntervalSince1970, expected.timeIntervalSince1970)
+        } catch {
+            XCTFail("\(error)")
+        }
+    }
+
+    func testDateDecodingStrategy_millisecondsSince1970() {
+        let expected = Date()
+        let csv = """
+        date
+        \(expected.timeIntervalSince1970 * 1000.0)
+        """
+        do {
+            let reader = try CSVReader(string: csv, hasHeaderRow: true)
+            reader.next()
+
+            let decoder = CSVRowDecoder()
+            decoder.dateDecodingStrategy = .millisecondsSince1970
+            let row = try decoder.decode(DateDecodingStrategyExample.self, from: reader)
+            XCTAssertEqual(row.date.timeIntervalSince1970, expected.timeIntervalSince1970)
+        } catch {
+            XCTFail("\(error)")
+        }
+    }
+
+    @available(macOS 10.12, iOS 10.0, watchOS 3.0, tvOS 10.0, *)
+    func testDateDecodingStrategy_iso8601() {
+        let csv = """
+        date
+        2018-11-22T12:34:56+09:00
+        """
+        do {
+            let reader = try CSVReader(string: csv, hasHeaderRow: true)
+            reader.next()
+
+            let decoder = CSVRowDecoder()
+            decoder.dateDecodingStrategy = .iso8601
+            let row = try decoder.decode(DateDecodingStrategyExample.self, from: reader)
+            XCTAssertEqual(row.date.timeIntervalSince1970, 1542857696)
+        } catch {
+            XCTFail("\(error)")
+        }
+    }
+
+    func testDateDecodingStrategy_formatted() {
+        let csv = """
+        date
+        2018/11/22
+        """
+        do {
+            let formatter = DateFormatter()
+            formatter.locale = Locale(identifier: "en_US_POSIX")
+            formatter.timeZone = TimeZone(identifier: "Asia/Tokyo")
+            formatter.dateFormat = "yyyy/MM/dd"
+
+            let reader = try CSVReader(string: csv, hasHeaderRow: true)
+            reader.next()
+
+            let decoder = CSVRowDecoder()
+            decoder.dateDecodingStrategy = .formatted(formatter)
+            let row = try decoder.decode(DateDecodingStrategyExample.self, from: reader)
+            XCTAssertEqual(row.date.timeIntervalSince1970, 1542812400)
+        } catch {
+            XCTFail("\(error)")
+        }
+    }
+
+    func testDateDecodingStrategy_custom() {
+        let expected = Date()
+        let csv = """
+        date
+        \(expected.timeIntervalSinceReferenceDate)
+        """
+        do {
+            let formatter = DateFormatter()
+            formatter.locale = Locale(identifier: "en_US_POSIX")
+            formatter.timeZone = TimeZone(identifier: "Asia/Tokyo")
+            formatter.dateFormat = "yyyy/MM/dd"
+
+            let reader = try CSVReader(string: csv, hasHeaderRow: true)
+            reader.next()
+
+            let decoder = CSVRowDecoder()
+            decoder.dateDecodingStrategy = .custom({ Date(timeIntervalSinceReferenceDate: Double($0)!) })
+            let row = try decoder.decode(DateDecodingStrategyExample.self, from: reader)
+            XCTAssertEqual(row.date, expected)
+        } catch {
+            XCTFail("\(error)")
+        }
+    }
+
+    //===----------------------------------------------------------------------===//
+
+    fileprivate struct DataDecodingStrategyExample: Decodable {
+        let data: Data
+    }
+
+    func testDataDecodingStrategy_base64() {
+        let expected = Data([0x56, 0x12, 0x00, 0x34, 0x1a, 0xfe])
+        let csv = """
+        data
+        "\(expected.base64EncodedString())"
+        """
+        do {
+            let reader = try CSVReader(string: csv, hasHeaderRow: true)
+            reader.next()
+
+            let decoder = CSVRowDecoder()
+            decoder.dataDecodingStrategy = .base64
+            let row = try decoder.decode(DataDecodingStrategyExample.self, from: reader)
+            XCTAssertEqual(row.data, expected)
+        } catch {
+            XCTFail("\(error)")
+        }
+    }
+
+    func testDataDecodingStrategy_custom() {
+        let expected = Data([0x34, 0x1a, 0xfe, 0x56, 0x12, 0x00])
+        let csv = """
+        data
+        "\(expected.map({ String(format: "%02x", $0) }).joined())"
+        """
+        do {
+            let reader = try CSVReader(string: csv, hasHeaderRow: true)
+            reader.next()
+
+            let decoder = CSVRowDecoder()
+            decoder.dataDecodingStrategy = .custom { value in
+                var bytes = [UInt8]()
+                for i in stride(from: 0, to: value.count, by: 2) {
+                    let start = value.index(value.startIndex, offsetBy: i)
+                    let end = value.index(value.startIndex, offsetBy: i + 1)
+                    bytes.append(UInt8(value[start...end], radix: 16)!)
+                }
+                return Data(bytes)
+            }
+            let row = try decoder.decode(DataDecodingStrategyExample.self, from: reader)
+            XCTAssertEqual(row.data, expected)
+        } catch {
+            XCTFail("\(error)")
+        }
+    }
+
+    //===----------------------------------------------------------------------===//
+
+    fileprivate struct FoundationDecodingExample: Decodable {
+        let url: URL
+        let decimal: Decimal
+    }
+
+    func testFoundationDecoding() {
+        let csv = """
+        url,decimal
+        "https://www.example.com/path?param=1",99999999999999999999.9999999999999999
+        """
+        do {
+            let reader = try CSVReader(string: csv, hasHeaderRow: true)
+            reader.next()
+
+            let decoder = CSVRowDecoder()
+            let row = try decoder.decode(FoundationDecodingExample.self, from: reader)
+            XCTAssertEqual(row.url.absoluteString, "https://www.example.com/path?param=1")
+            XCTAssertEqual(row.decimal.description, "99999999999999999999.9999999999999999")
+        } catch {
+            XCTFail("\(error)")
+        }
+    }
+
+}

Tests/CSVTests/CSVWriterTests.swift

@@ -0,0 +1,336 @@
+//
+//  CSVWriterTests.swift
+//  CSV
+//
+//  Created by Yasuhiro Hatta on 2017/05/28.
+//  Copyright © 2017年 yaslab. All rights reserved.
+//
+
+import Foundation
+import XCTest
+
+import CSV
+
+extension OutputStream {
+
+    var data: Data? {
+        return self.property(forKey: .dataWrittenToMemoryStreamKey) as? Data
+    }
+
+}
+
+class CSVWriterTests: XCTestCase {
+
+    let str = "TEST-test-1234-😄😆👨‍👩‍👧‍👦"
+
+    /// xxxx
+    func testSingleFieldSingleRecord() {
+        let csv = try! CSVWriter(stream: .toMemory())
+        csv.beginNewRow()
+        try! csv.write(field: str)
+
+        let data = csv.stream.data!
+        let csvStr = String(data: data, encoding: .utf8)!
+
+        XCTAssertEqual(csvStr, str)
+    }
+
+    /// xxxx
+    /// xxxx
+    func testSingleFieldMultipleRecord() {
+        let stream = OutputStream.toMemory()
+        stream.open()
+
+        let csv = try! CSVWriter(stream: stream)
+        csv.beginNewRow()
+        try! csv.write(field: str + "-1")
+        csv.beginNewRow()
+        try! csv.write(field: str + "-2")
+
+        stream.close()
+        let data = stream.data!
+        let csvStr = String(data: data, encoding: .utf8)!
+
+        XCTAssertEqual(csvStr, "\(str)-1\n\(str)-2")
+    }
+
+    /// xxxx,xxxx
+    func testMultipleFieldSingleRecord() {
+        let stream = OutputStream.toMemory()
+        stream.open()
+
+        let csv = try! CSVWriter(stream: stream)
+        csv.beginNewRow()
+        try! csv.write(field: str + "-1")
+        try! csv.write(field: str + "-2")
+
+        stream.close()
+        let data = stream.data!
+        let csvStr = String(data: data, encoding: .utf8)!
+
+        XCTAssertEqual(csvStr, "\(str)-1,\(str)-2")
+    }
+
+    /// xxxx,xxxx
+    /// xxxx,xxxx
+    func testMultipleFieldMultipleRecord() {
+        let stream = OutputStream.toMemory()
+        stream.open()
+
+        let csv = try! CSVWriter(stream: stream)
+        csv.beginNewRow()
+        try! csv.write(field: str + "-1-1")
+        try! csv.write(field: str + "-1-2")
+        csv.beginNewRow()
+        try! csv.write(field: str + "-2-1")
+        try! csv.write(field: str + "-2-2")
+
+        stream.close()
+        let data = stream.data!
+        let csvStr = String(data: data, encoding: .utf8)!
+
+        XCTAssertEqual(csvStr, "\(str)-1-1,\(str)-1-2\n\(str)-2-1,\(str)-2-2")
+    }
+
+    /// "xxxx",xxxx
+    func testQuoted() {
+        let stream = OutputStream.toMemory()
+        stream.open()
+
+        let csv = try! CSVWriter(stream: stream)
+        csv.beginNewRow()
+        try! csv.write(field: str + "-1", quoted: true)
+        try! csv.write(field: str + "-2") // quoted: false
+
+        stream.close()
+        let data = stream.data!
+        let csvStr = String(data: data, encoding: .utf8)!
+
+        XCTAssertEqual(csvStr, "\"\(str)-1\",\(str)-2")
+    }
+
+    /// xxxx,"xx\nxx"
+    func testQuotedNewline() {
+        let stream = OutputStream.toMemory()
+        stream.open()
+
+        let csv = try! CSVWriter(stream: stream)
+        csv.beginNewRow()
+        try! csv.write(field: str + "-1") // quoted: false
+        try! csv.write(field: str + "-\n-2", quoted: true)
+
+        stream.close()
+        let data = stream.data!
+        let csvStr = String(data: data, encoding: .utf8)!
+
+        XCTAssertEqual(csvStr, "\(str)-1,\"\(str)-\n-2\"")
+    }
+
+    /// xxxx,"xx""xx"
+    func testEscapeQuote() {
+        let stream = OutputStream.toMemory()
+        stream.open()
+
+        let csv = try! CSVWriter(stream: stream)
+        csv.beginNewRow()
+        try! csv.write(field: str + "-1") // quoted: false
+        try! csv.write(field: str + "-\"-2", quoted: true)
+
+        stream.close()
+        let data = stream.data!
+        let csvStr = String(data: data, encoding: .utf8)!
+
+        XCTAssertEqual(csvStr, "\(str)-1,\"\(str)-\"\"-2\"")
+    }
+
+    /// csv.write(row: ["xxxx", "xx,\"xx"])
+    /// -> xxxx,"xx,""xx"
+    func testEscapeQuoteAutomatically() {
+        let stream = OutputStream.toMemory()
+        stream.open()
+        
+        let csv = try! CSVWriter(stream: stream)
+        try! csv.write(row: ["id", "testing,\"comma"]) // quoted: false
+        
+        stream.close()
+        let data = stream.data!
+        let csvStr = String(data: data, encoding: .utf8)!
+        
+        XCTAssertEqual(csvStr, "id,\"testing,\"\"comma\"")
+    }
+    
+    /// csv.write(row: ["xxxx", "xx\rxx", "xx\nxx", "xx\r\nrxx"])
+    /// -> xxxx,"xx\rxx","xx\nxx","xx\r\nxx"
+    func testEscapeNewlineAutomatically() {
+        let stream = OutputStream.toMemory()
+        stream.open()
+        
+        let csv = try! CSVWriter(stream: stream)
+        try! csv.write(row: ["id", "testing\rCR", "testing\nLF", "testing\r\nCRLF"]) // quoted: false
+        
+        stream.close()
+        let data = stream.data!
+        let csvStr = String(data: data, encoding: .utf8)!
+        
+        XCTAssertEqual(csvStr, "id,\"testing\rCR\",\"testing\nLF\",\"testing\r\nCRLF\"")
+    }
+    
+    /// Test delimiter: $
+    /// csv.write(row: ["xxxx", "xx$xx"])
+    /// -> xxxx$"xx$xx"
+    func testEscapeDelimiterAutomatically() {
+        let stream = OutputStream.toMemory()
+        stream.open()
+        
+        let csv = try! CSVWriter(stream: stream, delimiter: "$")
+        try! csv.write(row: ["id", "testing$dollar"]) // quoted: false
+        
+        stream.close()
+        let data = stream.data!
+        let csvStr = String(data: data, encoding: .utf8)!
+        
+        XCTAssertEqual(csvStr, "id$\"testing$dollar\"")
+    }
+    
+    /// Test delimiter: "\t"
+    func testDelimiter() {
+        let stream = OutputStream.toMemory()
+        stream.open()
+
+        let csv = try! CSVWriter.init(stream: stream, delimiter: "\t")
+        csv.beginNewRow()
+        try! csv.write(field: str + "-1")
+        try! csv.write(field: str + "-2")
+
+        stream.close()
+        let data = stream.data!
+        let csvStr = String(data: data, encoding: .utf8)!
+
+        XCTAssertEqual(csvStr, "\(str)-1\t\(str)-2")
+    }
+
+    /// Test newline: "\r\n"
+    func testNewline() {
+        let stream = OutputStream.toMemory()
+        stream.open()
+
+        let csv = try! CSVWriter.init(stream: stream, newline: .crlf)
+        csv.beginNewRow()
+        try! csv.write(field: str + "-1")
+        csv.beginNewRow()
+        try! csv.write(field: str + "-2")
+
+        stream.close()
+        let data = stream.data!
+        let csvStr = String(data: data, encoding: .utf8)!
+
+        XCTAssertEqual(csvStr, "\(str)-1\r\n\(str)-2")
+    }
+
+    /// xxxx,xxxx
+    func testValueContainsComma() {
+        let stream = OutputStream.toMemory()
+        stream.open()
+
+        let csv = try! CSVWriter(stream: stream)
+        csv.beginNewRow()
+        try! csv.write(field: str + ",1", quoted: true)
+        try! csv.write(field: str + ",2") // quoted: false
+
+        stream.close()
+        let data = stream.data!
+        let csvStr = String(data: data, encoding: .utf8)!
+
+        XCTAssertEqual(csvStr, "\"\(str),1\",\"\(str),2\"")
+    }
+
+    /// UTF16 Big Endian
+    func testUTF16BE() {
+        let stream = OutputStream.toMemory()
+        stream.open()
+
+        let csv = try! CSVWriter(stream: stream, codecType: UTF16.self, endian: .big)
+        csv.beginNewRow()
+        try! csv.write(field: str)
+
+        stream.close()
+        let data = stream.data!
+        let csvStr = String(data: data, encoding: .utf16BigEndian)!
+
+        XCTAssertEqual(csvStr, str)
+    }
+
+    /// UTF16 Little Endian
+    func testUTF16LE() {
+        let stream = OutputStream.toMemory()
+        stream.open()
+
+        let csv = try! CSVWriter(stream: stream, codecType: UTF16.self, endian: .little)
+        csv.beginNewRow()
+        try! csv.write(field: str)
+
+        stream.close()
+        let data = stream.data!
+        let csvStr = String(data: data, encoding: .utf16LittleEndian)!
+
+        XCTAssertEqual(csvStr, str)
+    }
+
+    /// UTF32 Big Endian
+    func testUTF32BE() {
+        let stream = OutputStream.toMemory()
+        stream.open()
+
+        let csv = try! CSVWriter(stream: stream, codecType: UTF32.self, endian: .big)
+        csv.beginNewRow()
+        try! csv.write(field: str)
+
+        stream.close()
+        let data = stream.data!
+        let csvStr = String(data: data, encoding: .utf32BigEndian)!
+
+        XCTAssertEqual(csvStr, str)
+    }
+
+    /// UTF32 Little Endian
+    func testUTF32LE() {
+        let stream = OutputStream.toMemory()
+        stream.open()
+
+        let csv = try! CSVWriter(stream: stream, codecType: UTF32.self, endian: .little)
+        csv.beginNewRow()
+        try! csv.write(field: str)
+
+        stream.close()
+        let data = stream.data!
+        let csvStr = String(data: data, encoding: .utf32LittleEndian)!
+
+        XCTAssertEqual(csvStr, str)
+    }
+
+    func testReadme() {
+        let csv = try! CSVWriter(stream: .toMemory())
+
+        // Write a row
+        try! csv.write(row: ["id", "name"])
+
+        // Write fields separately
+        csv.beginNewRow()
+        try! csv.write(field: "1")
+        try! csv.write(field: "foo")
+        csv.beginNewRow()
+        try! csv.write(field: "2")
+        try! csv.write(field: "bar")
+
+        csv.stream.close()
+
+        // Get a String
+        let csvData = csv.stream.property(forKey: .dataWrittenToMemoryStreamKey) as! Data
+        let csvString = String(data: csvData, encoding: .utf8)!
+        print(csvString)
+        // => "id,name\n1,foo\n2,bar"
+
+        XCTAssertEqual("id,name\n1,foo\n2,bar", csvString)
+    }
+
+}

Tests/CSVTests/LineBreakTests.swift

@@ -0,0 +1,121 @@
+//
+//  LineBreakTests.swift
+//  CSV
+//
+//  Created by Yasuhiro Hatta on 2016/06/11.
+//  Copyright © 2016 yaslab. All rights reserved.
+//
+
+import XCTest
+@testable import CSV
+
+class LineBreakTests: XCTestCase {
+
+    func testLF() {
+        let csv = "abab,cdcd,efef\nzxcv,asdf,qwer"
+        let records = parse(csv: csv)
+        XCTAssertEqual(records[0], ["abab", "cdcd", "efef"])
+        XCTAssertEqual(records[1], ["zxcv", "asdf", "qwer"])
+    }
+
+    func testCRLF() {
+        let csv = "abab,cdcd,efef\r\nzxcv,asdf,qwer"
+        let records = parse(csv: csv)
+        XCTAssertEqual(records[0], ["abab", "cdcd", "efef"])
+        XCTAssertEqual(records[1], ["zxcv", "asdf", "qwer"])
+    }
+
+    func testLastCR() {
+        let csv = "abab,,cdcd,efef\r\nzxcv,asdf,\"qw\"\"er\",\r"
+        let records = parse(csv: csv)
+        XCTAssertEqual(records.count, 2)
+        XCTAssertEqual(records[0], ["abab", "", "cdcd", "efef"])
+        XCTAssertEqual(records[1], ["zxcv", "asdf", "qw\"er", ""])
+    }
+
+    func testLastCRLF() {
+        let csv = "abab,,cdcd,efef\r\nzxcv,asdf,\"qw\"\"er\",\r\n"
+        let records = parse(csv: csv)
+        XCTAssertEqual(records.count, 2)
+        XCTAssertEqual(records[0], ["abab", "", "cdcd", "efef"])
+        XCTAssertEqual(records[1], ["zxcv", "asdf", "qw\"er", ""])
+    }
+
+    func testLastLF() {
+        let csv = "abab,,cdcd,efef\r\nzxcv,asdf,\"qw\"\"er\",\n"
+        let records = parse(csv: csv)
+        XCTAssertEqual(records.count, 2)
+        XCTAssertEqual(records[0], ["abab", "", "cdcd", "efef"])
+        XCTAssertEqual(records[1], ["zxcv", "asdf", "qw\"er", ""])
+    }
+
+    func testLFInQuotationMarks() {
+        let csv = "abab,,\"\rcdcd\n\",efef\r\nzxcv,asdf,\"qw\"\"er\",\n"
+        let records = parse(csv: csv)
+        XCTAssertEqual(records.count, 2)
+        XCTAssertEqual(records[0], ["abab", "", "\rcdcd\n", "efef"])
+        XCTAssertEqual(records[1], ["zxcv", "asdf", "qw\"er", ""])
+    }
+
+    func testLineBreakLF() {
+        let csv = "qwe,asd\nzxc,rty"
+        let records = parse(csv: csv)
+        XCTAssertEqual(records.count, 2)
+        XCTAssertEqual(records[0], ["qwe", "asd"])
+        XCTAssertEqual(records[1], ["zxc", "rty"])
+    }
+
+    func testLineBreakCR() {
+        let csv = "qwe,asd\rzxc,rty"
+        let records = parse(csv: csv)
+        XCTAssertEqual(records.count, 2)
+        XCTAssertEqual(records[0], ["qwe", "asd"])
+        XCTAssertEqual(records[1], ["zxc", "rty"])
+    }
+
+    func testLineBreakCRLF() {
+        let csv = "qwe,asd\r\nzxc,rty"
+        let records = parse(csv: csv)
+        XCTAssertEqual(records.count, 2)
+        XCTAssertEqual(records[0], ["qwe", "asd"])
+        XCTAssertEqual(records[1], ["zxc", "rty"])
+    }
+
+    func testLineBreakLFLF() {
+        let csv = "qwe,asd\n\nzxc,rty"
+        let records = parse(csv: csv)
+        XCTAssertEqual(records.count, 3)
+        XCTAssertEqual(records[0], ["qwe", "asd"])
+        XCTAssertEqual(records[1], [""])
+        XCTAssertEqual(records[2], ["zxc", "rty"])
+    }
+
+    func testLineBreakCRCR() {
+        let csv = "qwe,asd\r\rzxc,rty"
+        let records = parse(csv: csv)
+        XCTAssertEqual(records.count, 3)
+        XCTAssertEqual(records[0], ["qwe", "asd"])
+        XCTAssertEqual(records[1], [""])
+        XCTAssertEqual(records[2], ["zxc", "rty"])
+    }
+
+    func testLineBreakCRLFCRLF() {
+        let csv = "qwe,asd\r\n\r\nzxc,rty"
+        let records = parse(csv: csv)
+        XCTAssertEqual(records.count, 3)
+        XCTAssertEqual(records[0], ["qwe", "asd"])
+        XCTAssertEqual(records[1], [""])
+        XCTAssertEqual(records[2], ["zxc", "rty"])
+    }
+
+    private func parse(csv: String) -> [[String]] {
+        let reader = try! CSVReader(string: csv)
+        return reader.map { $0 }
+//        var records = [[String]]()
+//        try! reader.enumerateRows { (row, _, _) in
+//            records.append(row)
+//        }
+//        return records
+    }
+
+}

Tests/CSVTests/ReadmeTests.swift

@@ -0,0 +1,104 @@
+//
+//  ReadmeTests.swift
+//  CSV
+//
+//  Created by Yasuhiro Hatta on 2016/06/13.
+//  Copyright © 2016 yaslab. All rights reserved.
+//
+
+import XCTest
+@testable import CSV
+
+class ReadmeTests: XCTestCase {
+
+    // MARK: - Reading
+
+    func testFromCSVString() {
+        let csvString = "1,foo\n2,bar"
+        let csv = try! CSVReader(string: csvString)
+        while let row = csv.next() {
+            print("\(row)")
+        }
+        // => ["1", "foo"]
+        // => ["2", "bar"]
+    }
+
+    func testFromFile() {
+//        let stream = InputStream(fileAtPath: "/path/to/file.csv")!
+//        let csv = try! CSVReader(stream: stream)
+//        while let row = csv.next() {
+//            print("\(row)")
+//        }
+    }
+
+    func testGettingTheHeaderRow() {
+        let csvString = "id,name\n1,foo\n2,bar"
+        let csv = try! CSVReader(string: csvString,
+                                 hasHeaderRow: true) // It must be true.
+
+        let headerRow = csv.headerRow!
+        print("\(headerRow)") // => ["id", "name"]
+
+        while let row = csv.next() {
+            print("\(row)")
+        }
+        // => ["1", "foo"]
+        // => ["2", "bar"]
+    }
+
+    func testGetTheFieldValueUsingKey() {
+        let csvString = "id,name\n1,foo"
+        let csv = try! CSVReader(string: csvString,
+                                 hasHeaderRow: true) // It must be true.
+        
+        while csv.next() != nil {
+            print("\(csv["id"]!)")   // => "1"
+            print("\(csv["name"]!)") // => "foo"
+        }
+    }
+
+    func testProvideTheCharacterEncoding() {
+//        let stream = InputStream(fileAtPath: "/path/to/file.csv")!
+//        let csv = try! CSVReader(stream: stream,
+//                                 codecType: UTF16.self,
+//                                 endian: .big)
+    }
+
+    // MARK: - Writing
+
+    func testWriteToMemory() {
+        let stream = OutputStream(toMemory: ())
+        let csv = try! CSVWriter(stream: stream)
+
+        // Write a row
+        try! csv.write(row: ["id", "name"])
+        
+        // Write fields separately
+        csv.beginNewRow()
+        try! csv.write(field: "1")
+        try! csv.write(field: "foo")
+        csv.beginNewRow()
+        try! csv.write(field: "2")
+        try! csv.write(field: "bar")
+        
+        csv.stream.close()
+        
+        // Get a String
+        let csvData = stream.property(forKey: .dataWrittenToMemoryStreamKey) as! NSData
+        let csvString = String(data: Data(referencing: csvData), encoding: .utf8)!
+        print(csvString)
+        // => "id,name\n1,foo\n2,bar"
+    }
+
+    func testWriteToFile() {
+//        let stream = OutputStream(toFileAtPath: "/path/to/file.csv", append: false)!
+//        let csv = try! CSVWriter(stream: stream)
+//        
+//        try! csv.write(row: ["id", "name"])
+//        try! csv.write(row: ["1", "foo"])
+//        try! csv.write(row: ["1", "bar"])
+//        
+//        csv.stream.close()
+    }
+    
+}

Tests/CSVTests/TrimFieldsTests.swift

@@ -0,0 +1,167 @@
+//
+//  TrimFieldsTests.swift
+//  CSV
+//
+//  Created by Yasuhiro Hatta on 2016/10/18.
+//  Copyright © 2016 yaslab. All rights reserved.
+//
+
+import XCTest
+@testable import CSV
+
+class TrimFieldsTests: XCTestCase {
+
+    func testTrimFields1() {
+        let csvString = "abc,def,ghi"
+        let csv = try! CSVReader(string: csvString, trimFields: true)
+        for record in AnyIterator(csv) {
+            XCTAssertEqual(record, ["abc", "def", "ghi"])
+        }
+    }
+
+    func testTrimFields2() {
+        let csvString = " abc,  def,   ghi"
+        let csv = try! CSVReader(string: csvString, trimFields: true)
+        for record in AnyIterator(csv) {
+            XCTAssertEqual(record, ["abc", "def", "ghi"])
+        }
+    }
+
+    func testTrimFields3() {
+        let csvString = "abc ,def  ,ghi   "
+        let csv = try! CSVReader(string: csvString, trimFields: true)
+        for record in AnyIterator(csv) {
+            XCTAssertEqual(record, ["abc", "def", "ghi"])
+        }
+    }
+
+    func testTrimFields4() {
+        let csvString = " abc ,  def  ,   ghi   "
+        let csv = try! CSVReader(string: csvString, trimFields: true)
+        for record in AnyIterator(csv) {
+            XCTAssertEqual(record, ["abc", "def", "ghi"])
+        }
+    }
+
+    func testTrimFields5() {
+        let csvString = "\"abc\",\"def\",\"ghi\""
+        let csv = try! CSVReader(string: csvString, trimFields: true)
+        for record in AnyIterator(csv) {
+            XCTAssertEqual(record, ["abc", "def", "ghi"])
+        }
+    }
+
+    func testTrimFields6() {
+        let csvString = " \"abc\",  \"def\",   \"ghi\""
+        let csv = try! CSVReader(string: csvString, trimFields: true)
+        for record in AnyIterator(csv) {
+            XCTAssertEqual(record, ["abc", "def", "ghi"])
+        }
+    }
+
+    func testTrimFields7() {
+        let csvString = "\"abc\" ,\"def\"  ,\"ghi\"   "
+        let csv = try! CSVReader(string: csvString, trimFields: true)
+        for record in AnyIterator(csv) {
+            XCTAssertEqual(record, ["abc", "def", "ghi"])
+        }
+    }
+
+    func testTrimFields8() {
+        let csvString = " \"abc\" ,  \"def\"  ,   \"ghi\"   "
+        let csv = try! CSVReader(string: csvString, trimFields: true)
+        for record in AnyIterator(csv) {
+            XCTAssertEqual(record, ["abc", "def", "ghi"])
+        }
+    }
+
+    func testTrimFields9() {
+        let csvString = "\" abc \",\" def \",\" ghi \""
+        let csv = try! CSVReader(string: csvString, trimFields: true)
+        for record in AnyIterator(csv) {
+            XCTAssertEqual(record, [" abc ", " def ", " ghi "])
+        }
+    }
+
+    func testTrimFields10() {
+        let csvString = "\tabc,\t\tdef\t,ghi\t"
+        let csv = try! CSVReader(string: csvString, trimFields: true)
+        for record in AnyIterator(csv) {
+            XCTAssertEqual(record, ["abc", "def", "ghi"])
+        }
+    }
+
+    func testTrimFields11() {
+        let csvString = " abc \n def "
+        let csv = try! CSVReader(string: csvString, trimFields: true)
+
+        let record1 = csv.next()!
+        XCTAssertEqual(record1, ["abc"])
+        let record2 = csv.next()!
+        XCTAssertEqual(record2, ["def"])
+    }
+
+    func testTrimFields12() {
+        let csvString = " \"abc \" \n \" def\" "
+        let csv = try! CSVReader(string: csvString, trimFields: true)
+
+        let record1 = csv.next()!
+        XCTAssertEqual(record1, ["abc "])
+        let record2 = csv.next()!
+        XCTAssertEqual(record2, [" def"])
+    }
+
+    func testTrimFields13() {
+        let csvString = " abc \t\tdef\t ghi "
+        let csv = try! CSVReader(string: csvString, trimFields: true, delimiter: "\t")
+        for record in AnyIterator(csv) {
+            XCTAssertEqual(record, ["abc", "", "def", "ghi"])
+        }
+    }
+
+    func testTrimFields14() {
+        let csvString = ""
+        let csv = try! CSVReader(string: csvString, trimFields: true)
+        let records = AnyIterator(csv).map { $0 }
+
+        XCTAssertEqual(records.count, 0)
+    }
+
+    func testTrimFields15() {
+        let csvString = " "
+        let csv = try! CSVReader(string: csvString, trimFields: true)
+        let records = AnyIterator(csv).map { $0 }
+
+        XCTAssertEqual(records.count, 1)
+        XCTAssertEqual(records[0], [""])
+    }
+
+    func testTrimFields16() {
+        let csvString = " , "
+        let csv = try! CSVReader(string: csvString, trimFields: true)
+        let records = AnyIterator(csv).map { $0 }
+
+        XCTAssertEqual(records.count, 1)
+        XCTAssertEqual(records[0], ["", ""])
+    }
+
+    func testTrimFields17() {
+        let csvString = " , \n"
+        let csv = try! CSVReader(string: csvString, trimFields: true)
+        let records = AnyIterator(csv).map { $0 }
+
+        XCTAssertEqual(records.count, 1)
+        XCTAssertEqual(records[0], ["", ""])
+    }
+
+    func testTrimFields18() {
+        let csvString = " , \n "
+        let csv = try! CSVReader(string: csvString, trimFields: true)
+        let records = AnyIterator(csv).map { $0 }
+
+        XCTAssertEqual(records.count, 2)
+        XCTAssertEqual(records[0], ["", ""])
+        XCTAssertEqual(records[1], [""])
+    }
+
+}

Tests/CSVTests/UnicodeTests.swift

@@ -0,0 +1,113 @@
+//
+//  UnicodeTests.swift
+//  CSV
+//
+//  Created by Yasuhiro Hatta on 2016/10/18.
+//  Copyright © 2016 yaslab. All rights reserved.
+//
+
+import Foundation
+import XCTest
+@testable import CSV
+
+class UnicodeTests: XCTestCase {
+
+    func testUTF8WithBOM() {
+        let csvString = "abab,,cdcd,efef\r\nzxcv,asdf,\"qw\"\"er\","
+        let encoding = String.Encoding.utf8
+        var mutableData = Data()
+        mutableData.append(contentsOf: UnicodeBOM.utf8)
+        mutableData.append(csvString.data(using: encoding)!)
+        let stream = InputStream(data: mutableData)
+        let csv = try! CSVReader(stream: stream, codecType: UTF8.self)
+        let records = getRecords(csv: csv)
+        XCTAssertEqual(records[0], ["abab", "", "cdcd", "efef"])
+        XCTAssertEqual(records[1], ["zxcv", "asdf", "qw\"er", ""])
+    }
+
+    func testUTF16WithNativeEndianBOM() {
+        let csvString = "abab,,cdcd,efef\r\nzxcv,😆asdf,\"qw\"\"er\","
+        let encoding = String.Encoding.utf16
+        var mutableData = Data()
+        mutableData.append(csvString.data(using: encoding)!)
+        let stream = InputStream(data: mutableData as Data)
+        let csv = try! CSVReader(stream: stream, codecType: UTF16.self, endian: .unknown)
+        let records = getRecords(csv: csv)
+        XCTAssertEqual(records[0], ["abab", "", "cdcd", "efef"])
+        XCTAssertEqual(records[1], ["zxcv", "😆asdf", "qw\"er", ""])
+    }
+
+    func testUTF16WithBigEndianBOM() {
+        let csvString = "abab,,cdcd,efef\r\n😆zxcv,asdf,\"qw\"\"er\","
+        let encoding = String.Encoding.utf16BigEndian
+        var mutableData = Data()
+        mutableData.append(contentsOf: UnicodeBOM.utf16BE)
+        mutableData.append(csvString.data(using: encoding)!)
+        let stream = InputStream(data: mutableData as Data)
+        let csv = try! CSVReader(stream: stream, codecType: UTF16.self, endian: .big)
+        let records = getRecords(csv: csv)
+        XCTAssertEqual(records[0], ["abab", "", "cdcd", "efef"])
+        XCTAssertEqual(records[1], ["😆zxcv", "asdf", "qw\"er", ""])
+    }
+
+    func testUTF16WithLittleEndianBOM() {
+        let csvString = "abab,,cdcd,efef\r\nzxcv😆,asdf,\"qw\"\"er\","
+        let encoding = String.Encoding.utf16LittleEndian
+        var mutableData = Data()
+        mutableData.append(contentsOf: UnicodeBOM.utf16LE)
+        mutableData.append(csvString.data(using: encoding)!)
+        let stream = InputStream(data: mutableData as Data)
+        let csv = try! CSVReader(stream: stream, codecType: UTF16.self, endian: .little)
+        let records = getRecords(csv: csv)
+        XCTAssertEqual(records[0], ["abab", "", "cdcd", "efef"])
+        XCTAssertEqual(records[1], ["zxcv😆", "asdf", "qw\"er", ""])
+    }
+
+    func testUTF32WithNativeEndianBOM() {
+        let csvString = "😆abab,,cdcd,efef\r\nzxcv,asdf,\"qw\"\"er\","
+        let encoding = String.Encoding.utf32
+        var mutableData = Data()
+        mutableData.append(csvString.data(using: encoding)!)
+        let stream = InputStream(data: mutableData as Data)
+        let csv = try! CSVReader(stream: stream, codecType: UTF32.self, endian: .unknown)
+        let records = getRecords(csv: csv)
+        XCTAssertEqual(records[0], ["😆abab", "", "cdcd", "efef"])
+        XCTAssertEqual(records[1], ["zxcv", "asdf", "qw\"er", ""])
+    }
+
+    func testUTF32WithBigEndianBOM() {
+        let csvString = "abab,,cd😆cd,efef\r\nzxcv,asdf,\"qw\"\"er\","
+        let encoding = String.Encoding.utf32BigEndian
+        var mutableData = Data()
+        mutableData.append(contentsOf: UnicodeBOM.utf32BE)
+        mutableData.append(csvString.data(using: encoding)!)
+        let stream = InputStream(data: mutableData as Data)
+        let csv = try! CSVReader(stream: stream, codecType: UTF32.self, endian: .big)
+        let records = getRecords(csv: csv)
+        XCTAssertEqual(records[0], ["abab", "", "cd😆cd", "efef"])
+        XCTAssertEqual(records[1], ["zxcv", "asdf", "qw\"er", ""])
+    }
+
+    func testUTF32WithLittleEndianBOM() {
+        let csvString = "abab,,cdcd,ef😆ef\r\nzxcv,asdf,\"qw\"\"er\","
+        let encoding = String.Encoding.utf32LittleEndian
+        var mutableData = Data()
+        mutableData.append(contentsOf: UnicodeBOM.utf32LE)
+        mutableData.append(csvString.data(using: encoding)!)
+        let stream = InputStream(data: mutableData as Data)
+        let csv = try! CSVReader(stream: stream, codecType: UTF32.self, endian: .little)
+        let records = getRecords(csv: csv)
+        XCTAssertEqual(records[0], ["abab", "", "cdcd", "ef😆ef"])
+        XCTAssertEqual(records[1], ["zxcv", "asdf", "qw\"er", ""])
+    }
+
+    private func getRecords(csv: CSVReader) -> [[String]] {
+        return csv.map { $0 }
+//        var records = [[String]]()
+//        try! csv.enumerateRows { (record, _, _) in
+//            records.append(record)
+//        }
+//        return records
+    }
+
+}

Tests/CSVTests/Version1Tests.swift

@@ -0,0 +1,106 @@
+//
+//  Version1Tests.swift
+//  CSV
+//
+//  Created by Yasuhiro Hatta on 2017/06/18.
+//  Copyright © 2017 yaslab. All rights reserved.
+//
+
+import Foundation
+import XCTest
+
+import CSV
+
+class Version1Tests: XCTestCase {
+
+    func testV1() {
+        let str = "a,b,c\n1,2,3"
+        let data8 = str.data(using: .utf8)!
+        let data16 = str.data(using: .utf16BigEndian)!
+        let data32 = str.data(using: .utf32BigEndian)!
+
+        let headerRow = ["a", "b", "c"]
+        let row = ["1", "2", "3"]
+
+        do {
+            let stream = InputStream(data: data8)
+            let csv = try CSVReader(stream: stream,
+                              codecType: UTF8.self,
+                              hasHeaderRow: true,
+                              trimFields: false,
+                              delimiter: ",")
+            XCTAssertEqual(csv.headerRow!, headerRow)
+            XCTAssertEqual(csv.next()!, row)
+            XCTAssertEqual(csv["a"], row[0])
+        } catch {
+            fatalError()
+        }
+
+        do {
+            let stream = InputStream(data: data16)
+            let csv = try CSVReader(stream: stream,
+                              codecType: UTF16.self,
+                              endian: .big,
+                              hasHeaderRow: true,
+                              trimFields: false,
+                              delimiter: ",")
+            XCTAssertEqual(csv.headerRow!, headerRow)
+            XCTAssertEqual(csv.next()!, row)
+            XCTAssertEqual(csv["a"], row[0])
+        } catch {
+            fatalError()
+        }
+
+        do {
+            let stream = InputStream(data: data32)
+            let csv = try CSVReader(stream: stream,
+                              codecType: UTF32.self,
+                              endian: .big,
+                              hasHeaderRow: true,
+                              trimFields: false,
+                              delimiter: ",")
+            XCTAssertEqual(csv.headerRow!, headerRow)
+            XCTAssertEqual(csv.next()!, row)
+            XCTAssertEqual(csv["a"], row[0])
+        } catch {
+            fatalError()
+        }
+
+        do {
+            let stream = InputStream(data: data8)
+            let csv = try CSVReader(stream: stream,
+                              hasHeaderRow: true,
+                              trimFields: false,
+                              delimiter: ",")
+            XCTAssertEqual(csv.headerRow!, headerRow)
+            XCTAssertEqual(csv.next()!, row)
+            XCTAssertEqual(csv["a"], row[0])
+        } catch {
+            fatalError()
+        }
+
+        do {
+            let csv = try CSVReader(string: str,
+                              hasHeaderRow: true,
+                              trimFields: false,
+                              delimiter: ",")
+            XCTAssertEqual(csv.headerRow!, headerRow)
+            XCTAssertEqual(csv.next()!, row)
+            XCTAssertEqual(csv["a"], row[0])
+        } catch {
+            fatalError()
+        }
+
+        _ = CSVError.cannotOpenFile
+        _ = CSVError.cannotReadFile
+        _ = CSVError.streamErrorHasOccurred(error: NSError(domain: "", code: 0, userInfo: nil))
+        _ = CSVError.cannotReadHeaderRow
+        _ = CSVError.stringEncodingMismatch
+        _ = CSVError.stringEndianMismatch
+
+        _ = Endian.big
+        _ = Endian.little
+        _ = Endian.unknown
+    }
+
+}

Tests/CSVTests/XCTestManifests.swift

@@ -0,0 +1,196 @@
+#if !canImport(ObjectiveC)
+import XCTest
+
+extension BinaryReaderTests {
+    // DO NOT MODIFY: This is autogenerated, use:
+    //   `swift test --generate-linuxmain`
+    // to regenerate.
+    static let __allTests__BinaryReaderTests = [
+        ("testReadUInt16BEWithSmallBuffer", testReadUInt16BEWithSmallBuffer),
+        ("testReadUInt16LEWithSmallBuffer", testReadUInt16LEWithSmallBuffer),
+        ("testReadUInt32BEWithSmallBuffer", testReadUInt32BEWithSmallBuffer),
+        ("testReadUInt32LEWithSmallBuffer", testReadUInt32LEWithSmallBuffer),
+        ("testReadUInt8WithSmallBuffer", testReadUInt8WithSmallBuffer),
+    ]
+}
+
+extension CSVReaderTests {
+    // DO NOT MODIFY: This is autogenerated, use:
+    //   `swift test --generate-linuxmain`
+    // to regenerate.
+    static let __allTests__CSVReaderTests = [
+        ("testCommaInQuotationMarks", testCommaInQuotationMarks),
+        ("testCSVState1", testCSVState1),
+        ("testDoubleQuoteBeforeLineBreak1", testDoubleQuoteBeforeLineBreak1),
+        ("testDoubleQuoteBeforeLineBreak2", testDoubleQuoteBeforeLineBreak2),
+        ("testEmptyField", testEmptyField),
+        ("testEscapedQuotationMark1", testEscapedQuotationMark1),
+        ("testEscapedQuotationMark2", testEscapedQuotationMark2),
+        ("testHasHeaderRow1", testHasHeaderRow1),
+        ("testHasHeaderRow2", testHasHeaderRow2),
+        ("testHasHeaderRow3", testHasHeaderRow3),
+        ("testHasHeaderRow4", testHasHeaderRow4),
+        ("testLastLineIsEmpty", testLastLineIsEmpty),
+        ("testLastLineIsWhiteSpace", testLastLineIsWhiteSpace),
+        ("testMiddleLineIsEmpty", testMiddleLineIsEmpty),
+        ("testOneLine", testOneLine),
+        ("testSubscript1", testSubscript1),
+        ("testSubscript2", testSubscript2),
+        ("testSubscriptInt", testSubscriptInt),
+        ("testToArray", testToArray),
+        ("testTwoLines", testTwoLines),
+    ]
+}
+
+extension CSVRowDecoderTests {
+    // DO NOT MODIFY: This is autogenerated, use:
+    //   `swift test --generate-linuxmain`
+    // to regenerate.
+    static let __allTests__CSVRowDecoderTests = [
+        ("testBoolDecodingStrategy_custom", testBoolDecodingStrategy_custom),
+        ("testBoolDecodingStrategy_default", testBoolDecodingStrategy_default),
+        ("testDataDecodingStrategy_base64", testDataDecodingStrategy_base64),
+        ("testDataDecodingStrategy_custom", testDataDecodingStrategy_custom),
+        ("testDateDecodingStrategy_custom", testDateDecodingStrategy_custom),
+        ("testDateDecodingStrategy_deferredToDate", testDateDecodingStrategy_deferredToDate),
+        ("testDateDecodingStrategy_formatted", testDateDecodingStrategy_formatted),
+        ("testDateDecodingStrategy_iso8601", testDateDecodingStrategy_iso8601),
+        ("testDateDecodingStrategy_millisecondsSince1970", testDateDecodingStrategy_millisecondsSince1970),
+        ("testDateDecodingStrategy_secondsSince1970", testDateDecodingStrategy_secondsSince1970),
+        ("testDecodeFloat", testDecodeFloat),
+        ("testDecodeInteger", testDecodeInteger),
+        ("testFoundationDecoding", testFoundationDecoding),
+        ("testIntCodingKey", testIntCodingKey),
+        ("testIntCodingKeyWhileIgnoringHeaders", testIntCodingKeyWhileIgnoringHeaders),
+        ("testNoHeader", testNoHeader),
+        ("testNumberOfFieldsIsSmall", testNumberOfFieldsIsSmall),
+        ("testStringCodingKey", testStringCodingKey),
+        ("testTypeInvalidDateFormat", testTypeInvalidDateFormat),
+        ("testTypeMismatch", testTypeMismatch),
+        ("testUnsupportedDecodableField", testUnsupportedDecodableField),
+    ]
+}
+
+extension CSVWriterTests {
+    // DO NOT MODIFY: This is autogenerated, use:
+    //   `swift test --generate-linuxmain`
+    // to regenerate.
+    static let __allTests__CSVWriterTests = [
+        ("testDelimiter", testDelimiter),
+        ("testEscapeQuote", testEscapeQuote),
+        ("testEscapeQuoteAutomatically", testEscapeQuoteAutomatically),
+        ("testMultipleFieldMultipleRecord", testMultipleFieldMultipleRecord),
+        ("testMultipleFieldSingleRecord", testMultipleFieldSingleRecord),
+        ("testNewline", testNewline),
+        ("testQuoted", testQuoted),
+        ("testQuotedNewline", testQuotedNewline),
+        ("testReadme", testReadme),
+        ("testSingleFieldMultipleRecord", testSingleFieldMultipleRecord),
+        ("testSingleFieldSingleRecord", testSingleFieldSingleRecord),
+        ("testUTF16BE", testUTF16BE),
+        ("testUTF16LE", testUTF16LE),
+        ("testUTF32BE", testUTF32BE),
+        ("testUTF32LE", testUTF32LE),
+        ("testValueContainsComma", testValueContainsComma),
+    ]
+}
+
+extension LineBreakTests {
+    // DO NOT MODIFY: This is autogenerated, use:
+    //   `swift test --generate-linuxmain`
+    // to regenerate.
+    static let __allTests__LineBreakTests = [
+        ("testCRLF", testCRLF),
+        ("testLastCR", testLastCR),
+        ("testLastCRLF", testLastCRLF),
+        ("testLastLF", testLastLF),
+        ("testLF", testLF),
+        ("testLFInQuotationMarks", testLFInQuotationMarks),
+        ("testLineBreakCR", testLineBreakCR),
+        ("testLineBreakCRCR", testLineBreakCRCR),
+        ("testLineBreakCRLF", testLineBreakCRLF),
+        ("testLineBreakCRLFCRLF", testLineBreakCRLFCRLF),
+        ("testLineBreakLF", testLineBreakLF),
+        ("testLineBreakLFLF", testLineBreakLFLF),
+    ]
+}
+
+extension ReadmeTests {
+    // DO NOT MODIFY: This is autogenerated, use:
+    //   `swift test --generate-linuxmain`
+    // to regenerate.
+    static let __allTests__ReadmeTests = [
+        ("testFromCSVString", testFromCSVString),
+        ("testFromFile", testFromFile),
+        ("testGetTheFieldValueUsingKey", testGetTheFieldValueUsingKey),
+        ("testGettingTheHeaderRow", testGettingTheHeaderRow),
+        ("testProvideTheCharacterEncoding", testProvideTheCharacterEncoding),
+        ("testWriteToFile", testWriteToFile),
+        ("testWriteToMemory", testWriteToMemory),
+    ]
+}
+
+extension TrimFieldsTests {
+    // DO NOT MODIFY: This is autogenerated, use:
+    //   `swift test --generate-linuxmain`
+    // to regenerate.
+    static let __allTests__TrimFieldsTests = [
+        ("testTrimFields1", testTrimFields1),
+        ("testTrimFields10", testTrimFields10),
+        ("testTrimFields11", testTrimFields11),
+        ("testTrimFields12", testTrimFields12),
+        ("testTrimFields13", testTrimFields13),
+        ("testTrimFields14", testTrimFields14),
+        ("testTrimFields15", testTrimFields15),
+        ("testTrimFields16", testTrimFields16),
+        ("testTrimFields17", testTrimFields17),
+        ("testTrimFields18", testTrimFields18),
+        ("testTrimFields2", testTrimFields2),
+        ("testTrimFields3", testTrimFields3),
+        ("testTrimFields4", testTrimFields4),
+        ("testTrimFields5", testTrimFields5),
+        ("testTrimFields6", testTrimFields6),
+        ("testTrimFields7", testTrimFields7),
+        ("testTrimFields8", testTrimFields8),
+        ("testTrimFields9", testTrimFields9),
+    ]
+}
+
+extension UnicodeTests {
+    // DO NOT MODIFY: This is autogenerated, use:
+    //   `swift test --generate-linuxmain`
+    // to regenerate.
+    static let __allTests__UnicodeTests = [
+        ("testUTF16WithBigEndianBOM", testUTF16WithBigEndianBOM),
+        ("testUTF16WithLittleEndianBOM", testUTF16WithLittleEndianBOM),
+        ("testUTF16WithNativeEndianBOM", testUTF16WithNativeEndianBOM),
+        ("testUTF32WithBigEndianBOM", testUTF32WithBigEndianBOM),
+        ("testUTF32WithLittleEndianBOM", testUTF32WithLittleEndianBOM),
+        ("testUTF32WithNativeEndianBOM", testUTF32WithNativeEndianBOM),
+        ("testUTF8WithBOM", testUTF8WithBOM),
+    ]
+}
+
+extension Version1Tests {
+    // DO NOT MODIFY: This is autogenerated, use:
+    //   `swift test --generate-linuxmain`
+    // to regenerate.
+    static let __allTests__Version1Tests = [
+        ("testV1", testV1),
+    ]
+}
+
+public func __allTests() -> [XCTestCaseEntry] {
+    return [
+        testCase(BinaryReaderTests.__allTests__BinaryReaderTests),
+        testCase(CSVReaderTests.__allTests__CSVReaderTests),
+        testCase(CSVRowDecoderTests.__allTests__CSVRowDecoderTests),
+        testCase(CSVWriterTests.__allTests__CSVWriterTests),
+        testCase(LineBreakTests.__allTests__LineBreakTests),
+        testCase(ReadmeTests.__allTests__ReadmeTests),
+        testCase(TrimFieldsTests.__allTests__TrimFieldsTests),
+        testCase(UnicodeTests.__allTests__UnicodeTests),
+        testCase(Version1Tests.__allTests__Version1Tests),
+    ]
+}
+#endif

Tests/LinuxMain.swift

@@ -1,14 +1,8 @@
-//
-//  LinuxMain.swift
-//  CSV
-//
-//  Created by Yasuhiro Hatta on 2016/06/11.
-//
-//
-
 import XCTest
-@testable import CSVTestSuite
 
-XCTMain([
+import CSVTests
-     testCase(CSVReaderTests.allTests),
+
-])
+var tests = [XCTestCaseEntry]()
+tests += CSVTests.__allTests()
+
+XCTMain(tests)