mlemanczyk/even-perfect-numbers-scanner
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Enforce equals syntax for parser options

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Marek Lemańczyk committed 2025-09-19 23:39:30 +02:00
1 parent 18b6505281
commit 7fbc3d3b49
1 file changed
+12 -27
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EvenPerfectBitScanner.ResultsParser/Program.cs
+12 -27
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@@ -180,31 +180,16 @@ internal static class Program
value = string.Empty;
string current = arguments[index];
int equalsIndex = current.IndexOf('=');
if (equalsIndex > 0)
if (equalsIndex <= 0 || equalsIndex == current.Length - 1)
{
option = current[..equalsIndex];
value = current[(equalsIndex + 1)..];
index++;
if (value.Length == 0)
{
Console.Error.WriteLine($"Option '{option}' must specify a value.");
PrintHelp();
return false;
}
return true;
}
option = current;
if (index + 1 >= arguments.Length)
{
Console.Error.WriteLine($"Option '{option}' must be followed by a value.");
Console.Error.WriteLine($"Option '{current}' must use the --name=value syntax.");
PrintHelp();
return false;
}
value = arguments[index + 1];
index += 2;
option = current[..equalsIndex];
value = current[(equalsIndex + 1)..];
index++;
return true;
}
@@ -215,19 +200,19 @@ internal static class Program
Console.WriteLine();
Console.WriteLine("Usage:");
Console.WriteLine(
" EvenPerfectBitScanner.ResultsParser <results.csv> [--p-min <value>] [--p-max <value>] [--threads <value>] [--buffer-size <value>]");
" EvenPerfectBitScanner.ResultsParser <results.csv> [--p-min=<value>] [--p-max=<value>] [--threads=<value>] [--buffer-size=<value>]");
Console.WriteLine();
Console.WriteLine("The program accepts the following help switches:");
Console.WriteLine(" --?, -?, /?, -help, --help, --h, -h, /h, /help");
Console.WriteLine();
Console.WriteLine("Optional range arguments allow filtering primes by exponent:");
Console.WriteLine(" --p-min <value> - include entries with p >= value");
Console.WriteLine(" --p-max <value> - include entries with p <= value");
Console.WriteLine(" --p-min=<value> - include entries with p >= value");
Console.WriteLine(" --p-max=<value> - include entries with p <= value");
Console.WriteLine();
Console.WriteLine("Parallel processing options:");
Console.WriteLine(" --threads <value> - number of worker threads used for parsing and splitting (default: logical cores)");
Console.WriteLine(" --buffer-size <value> - number of records read into each parsing batch (default: 4096)");
Console.WriteLine("Values can also be provided using the --option=value syntax.");
Console.WriteLine(" --threads=<value> - number of worker threads used for parsing and splitting (default: logical cores)");
Console.WriteLine(" --buffer-size=<value> - number of records read into each parsing batch (default: 4096)");
Console.WriteLine("Values must be provided using the --option=value syntax.");
Console.WriteLine();
Console.WriteLine("Outputs prime results into four files placed next to the source file:");
Console.WriteLine(" raw-primes-<name> - prime entries in the original order");
@@ -236,7 +221,7 @@ internal static class Program
Console.WriteLine(" sorted-primes-rejected-<name> - sorted prime entries with passedAllTests = false");
Console.WriteLine();
Console.WriteLine("Example:");
Console.WriteLine(" EvenPerfectBitScanner.ResultsParser results.csv --p-min 89 --p-max 107");
Console.WriteLine(" EvenPerfectBitScanner.ResultsParser results.csv --p-min=89 --p-max=107");
}
private static void ProcessFile(in string inputPath, ulong pMin, ulong pMax, int threadCount, int bufferSize)