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// Copyright 2017 The Tulsi Authors. All rights reserved.
//
// 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
//
// http://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 Foundation
extension String {
// Escape the string for the shell by enclosing it in single quotes if needed. When enclosing in
// single quotes, we must replace single quotes with '\\'' which outputs '\''.
// See https://stackoverflow.com/a/1315213 for more information.
public var escapingForShell: String {
guard rangeOfCharacter(from: .whitespaces) != nil || contains("'") || contains("$") else {
return self
}
let escapedString = replacingOccurrences(of: "'", with: "'\\''")
return "'\(escapedString)'"
}
}