[fix]: line & column parameters (#17)

As proposed in #16 the syntax to open a file at specified line and
column has changed:

```sh
# Prior
codeedit-cli index.html -l 42 -c 4

# New
codeedit-cli index.html:42:4
```

.swiftlint.yml

@@ -2,6 +2,9 @@
 identifier_name:
   allowed_symbols: ['_']
 
+large_tuple:
+  warning: 5
+
 excluded:
   - .build
   - .git

README.md

@@ -16,6 +16,10 @@
 
 ## Installation
 
+### Download
+
+Download the universal binary from the latest release, extract the zip and move it to `/usr/local/bin/`.
+
 ### Build locally
 
 ```sh

Sources/CodeEditCLI/Open.swift

@@ -16,25 +16,22 @@ extension CodeEditCLI {
         )
 
         @Argument(
-            help: "The path of a file/folder to open.",
+            help: """
+            The path of a file/folder to open.
+            When opening files, line and column numbers can be appended: `index.html:42:10`
+            """,
             completion: .file()
         )
         private var path: String?
 
-        @Option(name: .shortAndLong, help: "The line number to open a file at. Optional.")
-        private var line: Int?
-
-        @Option(name: .shortAndLong, help: "The column to open a file at. Optional.")
-        private var column: Int?
-
         func run() throws {
             let task = Process()
 
             // use the `open` cli as the executable
             task.launchPath = "/usr/bin/open"
 
             if let path {
-
+                let (path, line, column) = try extractLineColumn(path)
                 let openURL = try absolutePath(path, for: task)
 
                 // open CodeEdit using the url scheme
@@ -57,5 +54,35 @@ extension CodeEditCLI {
             }
             return url
         }
+
+        private func extractLineColumn(_ path: String) throws -> (path: String, line: Int?, column: Int?) {
+
+            // split the string at `:` to get line and column numbers
+            let components = path.split(separator: ":")
+
+            // set path to only the first component
+            guard let first = components.first else {
+                throw CLIError.invalidFileURL
+            }
+            let path = String(first)
+
+            // switch on the number of components
+            switch components.count {
+            case 1: // no line or column number provided
+                return (path, nil, nil)
+
+            case 2: // only line number provided
+                guard let row = Int(components[1]) else { throw CLIError.invalidFileURL }
+                return (path, row, nil)
+
+            case 3: // line and column number provided
+                guard let row = Int(components[1]),
+                      let column = Int(components[2]) else { throw CLIError.invalidFileURL }
+                return (path, row, column)
+
+            default: // any other case throw an error since this is invalid
+                throw CLIError.invalidFileURL
+            }
+        }
     }
 }

Sources/CodeEditCLI/main.swift

@@ -11,7 +11,7 @@ import Foundation
 // ##################################################
 //  This needs to be changed prior to every release!
 // ##################################################
-let CLI_VERSION = "0.0.3"
+let CLI_VERSION = "0.0.5"
 
 struct CodeEditCLI: ParsableCommand {
     static let configuration = CommandConfiguration(
@@ -30,6 +30,7 @@ struct CodeEditCLI: ParsableCommand {
 
     enum CLIError: Error {
         case invalidWorkingDirectory
+        case invalidFileURL
     }
 }