Merge pull request #241 from ankurp/swift-package-manager-proj

Updating project to use swift package manager and adding permutation function

.travis.yml

@@ -2,4 +2,5 @@ language: objective-c
 osx_image: xcode8
 
 script: 
-- xcodebuild clean build test -scheme Dollar -sdk iphonesimulator -destination 'platform=iOS Simulator,name=iPhone 6'
+- swift build
+- swift test

Dollar.xcodeproj/Configs/Project.xcconfig

@@ -0,0 +1,7 @@
+PRODUCT_NAME = $(TARGET_NAME)
+SUPPORTED_PLATFORMS = macosx iphoneos iphonesimulator appletvos appletvsimulator watchos watchsimulator
+MACOSX_DEPLOYMENT_TARGET = 10.10
+DYLIB_INSTALL_NAME_BASE = @rpath
+OTHER_SWIFT_FLAGS = -DXcode
+COMBINE_HIDPI_IMAGES = YES
+USE_HEADERMAP = NO

Dollar.xcodeproj/DollarTests_Info.plist

@@ -0,0 +1,25 @@
+<?xml version="1.0" encoding="UTF-8"?>
+<plist version="1.0">
+<dict>
+  <key>CFBundleDevelopmentRegion</key>
+  <string>en</string>
+  <key>CFBundleExecutable</key>
+  <string>$(EXECUTABLE_NAME)</string>
+  <key>CFBundleIdentifier</key>
+  <string>$(PRODUCT_BUNDLE_IDENTIFIER)</string>
+  <key>CFBundleInfoDictionaryVersion</key>
+  <string>6.0</string>
+  <key>CFBundleName</key>
+  <string>$(PRODUCT_NAME)</string>
+  <key>CFBundlePackageType</key>
+  <string>BNDL</string>
+  <key>CFBundleShortVersionString</key>
+  <string>1.0</string>
+  <key>CFBundleSignature</key>
+  <string>????</string>
+  <key>CFBundleVersion</key>
+  <string>$(CURRENT_PROJECT_VERSION)</string>
+  <key>NSPrincipalClass</key>
+  <string></string>
+</dict>
+</plist>

Dollar.xcodeproj/Dollar_Info.plist

@@ -0,0 +1,25 @@
+<?xml version="1.0" encoding="UTF-8"?>
+<plist version="1.0">
+<dict>
+  <key>CFBundleDevelopmentRegion</key>
+  <string>en</string>
+  <key>CFBundleExecutable</key>
+  <string>$(EXECUTABLE_NAME)</string>
+  <key>CFBundleIdentifier</key>
+  <string>$(PRODUCT_BUNDLE_IDENTIFIER)</string>
+  <key>CFBundleInfoDictionaryVersion</key>
+  <string>6.0</string>
+  <key>CFBundleName</key>
+  <string>$(PRODUCT_NAME)</string>
+  <key>CFBundlePackageType</key>
+  <string>FMWK</string>
+  <key>CFBundleShortVersionString</key>
+  <string>1.0</string>
+  <key>CFBundleSignature</key>
+  <string>????</string>
+  <key>CFBundleVersion</key>
+  <string>$(CURRENT_PROJECT_VERSION)</string>
+  <key>NSPrincipalClass</key>
+  <string></string>
+</dict>
+</plist>

Dollar.xcodeproj/xcshareddata/xcschemes/Dollar.xcscheme

@@ -1,7 +1,7 @@
 <?xml version="1.0" encoding="UTF-8"?>
 <Scheme
-   LastUpgradeVersion = "0800"
-   version = "1.8">
+   LastUpgradeVersion = "9999"
+   version = "1.3">
    <BuildAction
       parallelizeBuildables = "YES"
       buildImplicitDependencies = "YES">
@@ -14,27 +14,13 @@
             buildForAnalyzing = "YES">
             <BuildableReference
                BuildableIdentifier = "primary"
-               BlueprintIdentifier = "92E0D03B19467C67002ACC3D"
+               BlueprintIdentifier = "______Target_Dollar"
                BuildableName = "Dollar.framework"
                BlueprintName = "Dollar"
                ReferencedContainer = "container:Dollar.xcodeproj">
             </BuildableReference>
          </BuildActionEntry>
       </BuildActionEntries>
-      <BuildActionEntry
-         buildForTesting = "YES"
-         buildForRunning = "YES"
-         buildForProfiling = "NO"
-         buildForArchiving = "NO"
-         buildForAnalyzing = "YES">
-         <BuildableReference
-            BuildableIdentifier = "primary"
-            BlueprintIdentifier = "92E6686E19F09C6400BB4FB8"
-            BuildableName = "DollarTests.xctest"
-            BlueprintName = "DollarTests"
-            ReferencedContainer = "container:Dollar.xcodeproj">
-         </BuildableReference>
-      </BuildActionEntry>
    </BuildAction>
    <TestAction
       buildConfiguration = "Debug"
@@ -46,22 +32,13 @@
             skipped = "NO">
             <BuildableReference
                BuildableIdentifier = "primary"
-               BlueprintIdentifier = "92E6686E19F09C6400BB4FB8"
+               BlueprintIdentifier = "______Target_DollarTests"
                BuildableName = "DollarTests.xctest"
                BlueprintName = "DollarTests"
                ReferencedContainer = "container:Dollar.xcodeproj">
             </BuildableReference>
          </TestableReference>
       </Testables>
-      <MacroExpansion>
-         <BuildableReference
-            BuildableIdentifier = "primary"
-            BlueprintIdentifier = "92E0D03B19467C67002ACC3D"
-            BuildableName = "Dollar.framework"
-            BlueprintName = "Dollar"
-            ReferencedContainer = "container:Dollar.xcodeproj">
-         </BuildableReference>
-      </MacroExpansion>
       <AdditionalOptions>
       </AdditionalOptions>
    </TestAction>
@@ -78,7 +55,7 @@
       <MacroExpansion>
          <BuildableReference
             BuildableIdentifier = "primary"
-            BlueprintIdentifier = "92E0D03B19467C67002ACC3D"
+            BlueprintIdentifier = "______Target_Dollar"
             BuildableName = "Dollar.framework"
             BlueprintName = "Dollar"
             ReferencedContainer = "container:Dollar.xcodeproj">

Dollar.xcodeproj/xcshareddata/xcschemes/xcschememanagement.plist

@@ -0,0 +1,12 @@
+<?xml version="1.0" encoding="UTF-8"?>
+<plist version="1.0">
+<dict>
+  <key>SchemeUserState</key>
+  <dict>
+    <key>Dollar.xcscheme</key>
+    <dict></dict>
+  </dict>
+  <key>SuppressBuildableAutocreation</key>
+  <dict></dict>
+</dict>
+</plist>

Sources/Dollar.swift

@@ -1041,6 +1041,29 @@ open class $ {
         return $.pull(array, values: elemToRemove)
     }
 
+    /// Returns permutation of array
+    ///
+    /// - parameter character: Characters to source the permutation
+    /// - returns: Array of permutation of the characters specified
+    open class func permutation<T>(_ elements: [T]) -> [String] where T : CustomStringConvertible {
+        guard elements.count > 1 else {
+            return $.map(elements) { $0.description }
+        }
+
+        let strings = self.permutation($.initial(elements))
+        if let char = $.last(elements) {
+            return $.reduce(strings, initial: []) { (result, str) -> [String] in
+                let splitStr = $.map(str.description.characters) { $0.description }
+                return result + $.map(0...splitStr.count) { (index) -> String in
+                    var copy = $.copy(splitStr)
+                    copy.insert(char.description, at: (splitStr.count - index))
+                    return $.join(copy, separator: "")
+                }
+            }.sorted()
+        }
+        return []
+    }
+
     /// Returns random number from 0 upto but not including upperBound
     ///
     /// - parameter upperBound: upper bound when generating random number

Tests/DollarTests/DollarTests.swift

@@ -39,6 +39,11 @@ class DollarTests: XCTestCase {
         super.tearDown()
     }
 
+    func testPermutation() {
+        let result = $.permutation(["a", "b", "c"])
+        XCTAssertEqual(result, ["abc", "acb", "bac", "bca", "cab", "cba"])
+    }
+
     func testFirst() {
         if let result = $.first([1, 2, 3, 4]) {
             XCTAssertEqual(result, 1, "Return first element")

Try.playground/Contents.swift

@@ -0,0 +1 @@
+import Dollar

Try.playground/contents.xcplayground

@@ -0,0 +1,4 @@
+<?xml version="1.0" encoding="UTF-8" standalone="yes"?>
+<playground version='5.0' target-platform='ios'>
+    <timeline fileName='timeline.xctimeline'/>
+</playground>