Init package directory for SyntaxMapBuilder

SyntaxMapBuilder/.gitignore

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+.DS_Store
+/.build
+/Packages
+/*.xcodeproj
+xcuserdata/

SyntaxMapBuilder/Package.resolved

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+{
+  "object": {
+    "pins": [
+      {
+        "package": "Yams",
+        "repositoryURL": "https://github.com/jpsim/Yams",
+        "state": {
+          "branch": null,
+          "revision": "c947a306d2e80ecb2c0859047b35c73b8e1ca27f",
+          "version": "2.0.0"
+        }
+      }
+    ]
+  },
+  "version": 1
+}

SyntaxMapBuilder/Package.swift

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+// swift-tools-version:5.1
+
+import PackageDescription
+
+let package = Package(
+    name: "SyntaxMapBuilder",
+    platforms: [
+        .macOS("10.15"),
+    ],
+    products: [
+        .executable(name: "SyntaxMapBuilder", targets: ["SyntaxMapBuilder"]),
+    ],
+    dependencies: [
+        .package(url: "https://github.com/jpsim/Yams", from: "2.0.0"),
+    ],
+    targets: [
+        .target(name: "SyntaxMapBuilder", dependencies: ["Yams"]),
+        .testTarget(name: "SyntaxMapBuilderTests", dependencies: ["SyntaxMapBuilder"]),
+    ]
+)

SyntaxMapBuilder/README.md

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+# Syntax Map Builder
+
+Command-line helper application for CotEditor development to build SyntaxMap.json from syntax styles.
+
+This program is aimed to be used only locally on the build phase of CotEditor.
+
+
+## Usage
+
+```
+$ SyntaxMapBuilder Syntaxes/ > SyntaxMap.json
+```

SyntaxMapBuilder/Tests/SyntaxMapBuilderTests/SyntaxMapBuilderTests.swift

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+//
+//  SyntaxMapBuilderTests.swift
+//
+//  SyntaxMapBuilder
+//  https://coteditor.com
+//
+//  Created by 1024jp on 2020-02-26.
+//
+//  ---------------------------------------------------------------------------
+//
+//  © 2020 1024jp
+//
+//  Licensed under the Apache License, Version 2.0 (the "License");
+//  you may not use this file except in compliance with the License.
+//  You may obtain a copy of the License at
+//
+//  https://www.apache.org/licenses/LICENSE-2.0
+//
+//  Unless required by applicable law or agreed to in writing, software
+//  distributed under the License is distributed on an "AS IS" BASIS,
+//  WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+//  See the License for the specific language governing permissions and
+//  limitations under the License.
+
+import XCTest
+import class Foundation.Bundle
+
+final class SyntaxMapBuilderTests: XCTestCase {
+    
+    static var allTests = [
+        ("testExample", testExample),
+    ]
+    
+    
+    func testExample() throws {
+        
+        let fooBinary = productsDirectory.appendingPathComponent("SyntaxMapBuilder")
+        
+        let process = Process()
+        process.executableURL = fooBinary
+        
+        let pipe = Pipe()
+        process.standardOutput = pipe
+        
+        try process.run()
+        process.waitUntilExit()
+        
+        let data = pipe.fileHandleForReading.readDataToEndOfFile()
+        let output = String(data: data, encoding: .utf8)
+        
+        XCTAssertEqual(output, "")
+    }
+    
+    
+    
+    // MARK: Private Methods
+    
+    /// Returns path to the built products directory.
+    private var productsDirectory: URL {
+        #if os(macOS)
+        for bundle in Bundle.allBundles where bundle.bundlePath.hasSuffix(".xctest") {
+            return bundle.bundleURL.deletingLastPathComponent()
+        }
+        fatalError("couldn't find the products directory")
+        #else
+        return Bundle.main.bundleURL
+        #endif
+    }
+    
+}