func oneOrMore()

in Cyborg/ParserPrimitives.swift [125:145]

• 21 lines of code
• 6 McCabe index (conditional complexity)

func oneOrMore<T>(of parser: @escaping Parser<T>) -> Parser<[T]> {
    return { stream, index in
        switch parser(stream, index) {
        case .ok(let result, let index):
            var nextIndex = index
            var results = [result]
            findMoreMatches: while true {
                switch parser(stream, nextIndex) {
                case .ok(let result, let index):
                    nextIndex = index
                    results.append(result)
                case .error:
                    break findMoreMatches
                }
            }
            return .ok(results, nextIndex)
        case .error(let error):
            return .error(.noMatchesFound(error))
        }
    }
}