Using awk to create switch cases from enum definition

You know how you have all those enum cases and want each and every one of them in a switch? You can use awk to make this easy.

enum definition example:

enum Constants {
 static let showVisitMenu = "com.app.nyspcainc.observer.showVisitMenu"
 static let showCallMenu = "com.app.nyspcainc.observer.showCallMenu"
 static let showTextMenu = "com.app.nyspcainc.observer.showTextMenu"
 static let addNote = "com.app.nyspcainc.observer.addNote"
 static let showDashboard = "com.app.nyspcainc.observer.showExpertDashboard"
 static let showVisit = "com.app.nyspcainc.observer.showVisit"
 static let showQRCode = "com.app.nyspcainc.observer.showQRCode"
 static let showSurvey = "com.app.nyspcainc.observer.showSurvey"
 static let activityAssigned = "com.app.nyspcainc.observer.activityAssigned"
 static let activityCancelled = "com.app.nyspcainc.observer.activityCancelled"
}

This is how you can do this: 1. Move all cases to file and save it.

2. Open your terminal window, navigate to where you saved your file.

3. Use this line:

cat file | awk -F 'static let ' '{print $2}' | awk -F ' = ' '{print "case ."$1": break"}'

4. Your output should be:

case .showVisitMenu: break
case .showCallMenu: break
case .showTextMenu: break
case .addNote: break
case .showDashboard: break
case .showVisit: break
case .showQRCode: break
case .showSurvey: break
case .activityAssigned: break
case .activityCancelled: break

Interesting right?