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G()('al')

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Re: G()('al')

#31

Post by csandreasen »

eatnumber1 wrote: post #29
csandreasen wrote: post #27

I'm pretty sure this is cheating, but... #!/bin/sh grep -e "g\(()\)*('al')" $0 | sed 's/()/o/g' | sed "s/('al')/al/" exit g()('al') On its own, g()('al') is valid but g()()('al') is a syntax error. Also, bash and sh don't have non-numeric return values, so regardless of the solution you're stuck with printing.

This is a great incomplete solution. Can you submit a pull-request for it?

Just to clarify, I think it's a non-solution because the g()('al') is never actually executed - grep does all the work. You can add as many parenthesis as you want. The "exit" is there because you'll get a syntax error if you try to execute g()()('al'). g()('al') by itself does nothing (I'm not even sure why it's not flagged as a syntax error).

Re: G()('al')

#32

Post by eatnumber1 »

csandreasen wrote: post #31
eatnumber1 wrote: post #29

Earlier quoted context omitted.

This is a great incomplete solution. Can you submit a pull-request for it?

Just to clarify, I think it's a non-solution because the g()('al') is never actually executed - grep does all the work. You can add as many parenthesis as you want. The "exit" is there because you'll get a syntax error if you try to execute g()()('al'). g()('al') by itself does nothing (I'm not even sure why it's not flagged as a syntax error).

The three people who are judging this had a long discussion over this case, and basically decided that since it is in the file, it's fine. We frown on it a little because it's basically self-modifying code, but it's better than nothing for bash.

Re: G()('al')

#35

Post by juol »

C#

    using System;
    using System.Text;

    namespace Goal
    {
        class Program
        {
            static void Main(string[] args)
            {
                Console.WriteLine(G("al"));
                Console.WriteLine(G()("al"));
                Console.WriteLine(G()()()()()("al"));
            }

            static StringBuilder accumulator = new StringBuilder();
            delegate dynamic GoalDelegate(string s = "o");

            static dynamic G(string s = "o")
            {
                switch (s)
                {
                    case "o":
                        accumulator.Append("o");
                        return (GoalDelegate)G;
                    case "al":
                        string result = "G" + accumulator.ToString() + "al";
                        accumulator.Clear();
                        return result;
                    default:
                        return null;
                }
            }
        }

    }

Re: G()('al')

#38

Post by eatnumber1 »

juol wrote: post #35

C# using System; using System.Text; namespace Goal { class Program { static void Main(string[] args) { Console.WriteLine(G("al")); Console.WriteLine(G()("al")); Console.WriteLine(G()()()()()("al")); } static StringBuilder accumulator = new StringBuilder(); delegate dynamic GoalDelegate(string s = "o"); static dynamic G(string s = "o") { switch (s) { case "o": accumulator.Append("o"); return (GoalDelegate)G; case "al"…

Cool! Can you submit a pull request?
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