Bracketed Float To String

BracketedFloatToString

Brackted to Float  Developed Solution by Corp AI GPT & Curtis White, Senior Software Engineer, Prompt Engineer

Corp AI
https://chat.openai.com/g/g-A46CKCg3r-hacker-gnome-corp-ai-autonomous-agi

Solution 1 optimized for conciceness. 
----
using System;
using System.Globalization;
using System.Linq;

public static class StringExtensions
{
    public static float[] ToFloatArray(this string data) => data[1..^1].Split(',').Select(s => float.Parse(s, CultureInfo.InvariantCulture)).ToArray();
}

class Program
{
    static void Main()
    {
        Console.WriteLine(string.Join(", ", "[10,20.5,30.88,1.234e5,-0.12345]".ToFloatArray()));
    }
}



---
Solution 2 optimized for performance. 

using System;
using System.Globalization;

public static class StringExtensions
{
    public static float[] ToFloatArray(this string bracketedString)
    {
        // Validate the input is in the expected format.
        if (bracketedString == null || bracketedString.Length < 3 || bracketedString[0] != '[' || bracketedString[^1] != ']')
            throw new ArgumentException("String must be non-null, non-empty, and enclosed in brackets.");

        // Prepare for parsing.
        var numbers = bracketedString.AsSpan(1, bracketedString.Length - 2);
        var result = new float[CountCommas(numbers) + 1];
        
        // Parse the numbers.
        int resultIndex = 0;
        while (!numbers.IsEmpty)
        {
            var endIndex = numbers.IndexOf(',');
            var slice = endIndex == -1 ? numbers : numbers.Slice(0, endIndex);

            if (float.TryParse(slice, NumberStyles.Float, CultureInfo.InvariantCulture, out float number))
            {
                result[resultIndex++] = number;
            }
            else
            {
                throw new FormatException($"The segment '{slice.ToString()}' could not be parsed as a float.");
            }

            numbers = endIndex == -1 ? ReadOnlySpan<char>.Empty : numbers.Slice(endIndex + 1);
        }

        return result;
    }

    private static int CountCommas(ReadOnlySpan<char> span)
    {
        int count = 0;
        for (int i = 0; i < span.Length; i++)
        {
            if (span[i] == ',') count++;
        }
        return count;
    }
}

public class Program
{
    public static void Main()
    {
        string bracketedData = "[10,20.5,30.88,1.234e5,-0.12345]";
        var floatArray = bracketedData.ToFloatArray();
        
        Console.WriteLine("Extracted float array:");
        Console.WriteLine(string.Join(", ", floatArray));
    }
}