native macOS codings agent orchestrator prowl.onev.cat
Something went wrong. Try again.
12345678910111213141516171819202122232425262728293031323334353637383940414243444546474849505152535455565758596061626364656667686970717273747576import Foundation
/// Splits a user-authored extra-arguments string into literal argv tokens.////// Best-effort POSIX-style word splitting: whitespace separates tokens, single/// and double quotes group characters, and a backslash escapes the next/// character outside single quotes. There is no expansion of any kind — a/// token is always a literal argument value, never shell input. An/// unterminated quote consumes the rest of the input, so the launch preview/// shows exactly what would be sent instead of failing the save.nonisolated enum ShellWordSplitter { static func split(_ input: String) -> [String] { enum Quote { case none, single, double }
var tokens: [String] = [] var current = "" var hasToken = false var quote = Quote.none var index = input.startIndex
while index < input.endIndex { let character = input[index] index = input.index(after: index) switch quote { case .none: switch character { case "'": quote = .single hasToken = true case "\"": quote = .double hasToken = true case "\\": if index < input.endIndex { current.append(input[index]) index = input.index(after: index) } hasToken = true case let character where character.isWhitespace: if hasToken { tokens.append(current) current = "" hasToken = false } default: current.append(character) hasToken = true } case .single: if character == "'" { quote = .none } else { current.append(character) } case .double: if character == "\"" { quote = .none } else if character == "\\", index < input.endIndex, input[index] == "\"" || input[index] == "\\" { current.append(input[index]) index = input.index(after: index) } else { current.append(character) } } } if hasToken { tokens.append(current) } return tokens }}