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Merge pull request #22 from mlemanczyk/codex/add-evenperfectbitscanner.resultsparser-app

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Integrate Open.Numeric.Primes prime iterator
This commit is contained in:
Marek Lemańczyk authored and GitHub committed 2025-09-16 13:50:53 +02:00
2 parents 6479c6461b 382b202e37
commit 88d0c9c271
5 files changed
+495 -45
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.vscode/launch.json
Vendored
+29 -1
View File
@@ -7,6 +7,7 @@
"description": "Select project to run", "description": "Select project to run",
"options": [ "options": [
"EvenPerfectBitScanner", "EvenPerfectBitScanner",
"EvenPerfectBitScanner.ResultsParser"
], ],
"default": "EvenPerfectBitScanner" "default": "EvenPerfectBitScanner"
} }
@@ -53,6 +54,20 @@
"internalConsoleOptions": "neverOpen", "internalConsoleOptions": "neverOpen",
"justMyCode": false "justMyCode": false
}, },
{
"name": "Run EvenPerfectBitScanner.ResultsParser",
"type": "coreclr",
"request": "launch",
"noDebug": true,
"preLaunchTask": "Build EvenPerfectBitScanner.ResultsParser Release",
"program": "${workspaceFolder}/EvenPerfectBitScanner.ResultsParser/bin/Release/net8.0/EvenPerfectBitScanner.ResultsParser.dll",
"args": [],
"cwd": "${workspaceFolder}",
"stopAtEntry": false,
"console": "integratedTerminal",
"internalConsoleOptions": "neverOpen",
"justMyCode": false
},
{ {
"name": "Debug EvenPerfectBitScanner", "name": "Debug EvenPerfectBitScanner",
"type": "coreclr", "type": "coreclr",
@@ -65,6 +80,19 @@
"console": "integratedTerminal", "console": "integratedTerminal",
"internalConsoleOptions": "neverOpen", "internalConsoleOptions": "neverOpen",
"justMyCode": false "justMyCode": false
},
{
"name": "Debug EvenPerfectBitScanner.ResultsParser",
"type": "coreclr",
"request": "launch",
"preLaunchTask": "Build EvenPerfectBitScanner.ResultsParser Debug",
"program": "${workspaceFolder}/EvenPerfectBitScanner.ResultsParser/bin/Debug/net8.0/EvenPerfectBitScanner.ResultsParser.dll",
"args": [],
"cwd": "${workspaceFolder}",
"stopAtEntry": false,
"console": "integratedTerminal",
"internalConsoleOptions": "neverOpen",
"justMyCode": false
} }
] ]
} }
.vscode/tasks.json
Vendored
+62 -17
View File
@@ -49,10 +49,10 @@
"group": "build", "group": "build",
"problemMatcher": "$msCompile" "problemMatcher": "$msCompile"
}, },
{ {
"label": "Build EvenPerfectBitScanner Release", "label": "Build EvenPerfectBitScanner Release",
"command": "dotnet", "command": "dotnet",
"type": "process", "type": "process",
"args": [ "args": [
"build", "build",
"${workspaceFolder}/EvenPerfectBitScanner/EvenPerfectBitScanner.csproj", "${workspaceFolder}/EvenPerfectBitScanner/EvenPerfectBitScanner.csproj",
@@ -61,24 +61,69 @@
"--framework", "--framework",
"net8.0" "net8.0"
], ],
"group": "build", "group": "build",
"problemMatcher": "$msCompile" "problemMatcher": "$msCompile"
}, },
{ {
"label": "Run EvenPerfectBitScanner", "label": "Build EvenPerfectBitScanner.ResultsParser Debug",
"type": "process", "command": "dotnet",
"type": "process",
"args": [
"build",
"${workspaceFolder}/EvenPerfectBitScanner.ResultsParser/EvenPerfectBitScanner.ResultsParser.csproj",
"--configuration",
"Debug",
"--framework",
"net8.0"
],
"group": "build",
"problemMatcher": "$msCompile"
},
{
"label": "Build EvenPerfectBitScanner.ResultsParser Release",
"command": "dotnet",
"type": "process",
"args": [
"build",
"${workspaceFolder}/EvenPerfectBitScanner.ResultsParser/EvenPerfectBitScanner.ResultsParser.csproj",
"--configuration",
"Release",
"--framework",
"net8.0"
],
"group": "build",
"problemMatcher": "$msCompile"
},
{
"label": "Run EvenPerfectBitScanner",
"type": "process",
"command": "dotnet", "command": "dotnet",
"args": [ "args": [
"run", "run",
"--project", "--project",
"${workspaceFolder}/EvenPerfectBitScanner/EvenPerfectBitScanner.csproj", "${workspaceFolder}/EvenPerfectBitScanner/EvenPerfectBitScanner.csproj",
"--configuration", "--configuration",
"Release", "Release",
"--framework", "--framework",
"net8.0" "net8.0"
], ],
"problemMatcher": [] "problemMatcher": []
}, },
{
"label": "Run EvenPerfectBitScanner.ResultsParser",
"type": "process",
"command": "dotnet",
"args": [
"run",
"--project",
"${workspaceFolder}/EvenPerfectBitScanner.ResultsParser/EvenPerfectBitScanner.ResultsParser.csproj",
"--configuration",
"Release",
"--framework",
"net8.0"
],
"problemMatcher": []
},
{ {
"label": "Run Release (no debug)", "label": "Run Release (no debug)",
"type": "process", "type": "process",
@@ -93,4 +138,4 @@
"problemMatcher": [] "problemMatcher": []
} }
] ]
} }
EvenPerfectBitScanner.ResultsParser/EvenPerfectBitScanner.ResultsParser.csproj
+14
View File
@@ -0,0 +1,14 @@
<Project Sdk="Microsoft.NET.Sdk">
<PropertyGroup>
<OutputType>Exe</OutputType>
<TargetFramework>net8.0</TargetFramework>
<ImplicitUsings>enable</ImplicitUsings>
<Nullable>enable</Nullable>
</PropertyGroup>
<ItemGroup>
<PackageReference Include="Open.Numeric.Primes" Version="4.0.4" />
</ItemGroup>
</Project>
EvenPerfectBitScanner.ResultsParser/Program.cs
+358
View File
@@ -0,0 +1,358 @@
using System.Globalization;
using System.Text;
using Open.Numeric.Primes;
namespace EvenPerfectBitScanner.ResultsParser;
internal static class Program
{
private static readonly HashSet<string> HelpOptions = new(StringComparer.OrdinalIgnoreCase)
{
"--?",
"-?",
"-help",
"--help",
"--h",
"-h",
"/?",
"/h",
"/help"
};
private const string DefaultHeader = "p,searchedMersenne,detailedCheck,isPerfect";
private static int Main(string[] args)
{
if (args.Length == 0)
{
PrintHelp();
return 1;
}
if (args.Length == 1 && IsHelpOption(args[0]))
{
PrintHelp();
return 0;
}
if (args.Length != 1)
{
Console.Error.WriteLine("Only a single CSV file path is supported.");
PrintHelp();
return 1;
}
string inputPath = args[0];
if (!File.Exists(inputPath))
{
Console.Error.WriteLine($"Input file '{inputPath}' was not found.");
return 1;
}
try
{
ProcessFile(inputPath);
return 0;
}
catch (Exception exception)
{
Console.Error.WriteLine($"Processing failed: {exception.Message}");
return 1;
}
}
private static bool IsHelpOption(string value)
{
return HelpOptions.Contains(value);
}
private static void PrintHelp()
{
Console.WriteLine("EvenPerfectBitScanner.ResultsParser");
Console.WriteLine("Parses CSV results produced by the candidate scanner.");
Console.WriteLine();
Console.WriteLine("Usage:");
Console.WriteLine(" EvenPerfectBitScanner.ResultsParser <results.csv>");
Console.WriteLine();
Console.WriteLine("The program accepts the following help switches:");
Console.WriteLine(" --?, -?, /?, -help, --help, --h, -h, /h, /help");
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");
Console.WriteLine(" sorted-primes-<name> - prime entries sorted by p");
Console.WriteLine(" sorted-primes-passed-<name> - sorted prime entries with isPerfect = true");
Console.WriteLine(" sorted-primes-rejected-<name> - sorted prime entries with isPerfect = false");
Console.WriteLine();
Console.WriteLine("Example:");
Console.WriteLine(" EvenPerfectBitScanner.ResultsParser results.csv");
}
private static void ProcessFile(string inputPath)
{
using IEnumerator<string> enumerator = File.ReadLines(inputPath).GetEnumerator();
if (!enumerator.MoveNext())
{
Console.WriteLine("Input file did not contain any data. Created empty outputs using the default header.");
string fallbackHeader = DefaultHeader;
string rawFallbackPath = BuildOutputPath(inputPath, "raw-primes-");
WriteCsv(rawFallbackPath, fallbackHeader, Array.Empty<CandidateResult>());
CreateEmptyOutputs(inputPath, fallbackHeader);
return;
}
string headerLine = enumerator.Current;
string header = string.IsNullOrWhiteSpace(headerLine) ? DefaultHeader : headerLine.Trim();
using IEnumerator<ulong> primeEnumerator = Prime.Numbers.GetEnumerator();
if (!primeEnumerator.MoveNext())
{
throw new InvalidOperationException("Prime generator did not provide any values.");
}
ulong currentPrime = primeEnumerator.Current;
List<CandidateResult> pendingResults = new();
List<CandidateResult> primeResults = new();
while (enumerator.MoveNext())
{
string currentLine = enumerator.Current;
if (string.IsNullOrWhiteSpace(currentLine))
{
continue;
}
CandidateResult result = ParseLine(currentLine);
pendingResults.Add(result);
DrainPrimeMatches(pendingResults, primeResults, ref currentPrime, primeEnumerator, false);
}
DrainPrimeMatches(pendingResults, primeResults, ref currentPrime, primeEnumerator, true);
string rawOutputPath = BuildOutputPath(inputPath, "raw-primes-");
WriteCsv(rawOutputPath, header, primeResults);
if (primeResults.Count == 0)
{
Console.WriteLine("No prime entries were found in the input file.");
Console.WriteLine($"Created an empty prime snapshot at: {rawOutputPath}");
CreateEmptyOutputs(inputPath, header);
return;
}
List<CandidateResult> sortedResults = new(primeResults);
BubbleSort(sortedResults);
List<CandidateResult> passedResults = new();
List<CandidateResult> rejectedResults = new();
for (int i = 0; i < sortedResults.Count; i++)
{
CandidateResult candidate = sortedResults[i];
if (candidate.IsPerfect)
{
passedResults.Add(candidate);
}
else
{
rejectedResults.Add(candidate);
}
}
string sortedOutputPath = BuildOutputPath(inputPath, "sorted-primes-");
string passedOutputPath = BuildOutputPath(inputPath, "sorted-primes-passed-");
string rejectedOutputPath = BuildOutputPath(inputPath, "sorted-primes-rejected-");
WriteCsv(sortedOutputPath, header, sortedResults);
WriteCsv(passedOutputPath, header, passedResults);
WriteCsv(rejectedOutputPath, header, rejectedResults);
Console.WriteLine($"Processed {primeResults.Count} prime entr" +
$"{(primeResults.Count == 1 ? "y" : "ies")}.");
Console.WriteLine($"Prime results (raw order): {rawOutputPath}");
Console.WriteLine($"Prime results (sorted): {sortedOutputPath}");
Console.WriteLine($"Prime results (passed): {passedOutputPath}");
Console.WriteLine($"Prime results (rejected): {rejectedOutputPath}");
}
private static void CreateEmptyOutputs(string inputPath, string header)
{
string sortedOutputPath = BuildOutputPath(inputPath, "sorted-primes-");
string passedOutputPath = BuildOutputPath(inputPath, "sorted-primes-passed-");
string rejectedOutputPath = BuildOutputPath(inputPath, "sorted-primes-rejected-");
WriteCsv(sortedOutputPath, header, Array.Empty<CandidateResult>());
WriteCsv(passedOutputPath, header, Array.Empty<CandidateResult>());
WriteCsv(rejectedOutputPath, header, Array.Empty<CandidateResult>());
}
private static CandidateResult ParseLine(string line)
{
string trimmedLine = line.Trim();
ReadOnlySpan<char> span = trimmedLine.AsSpan();
int firstCommaIndex = span.IndexOf(',');
int lastCommaIndex = span.LastIndexOf(',');
if (firstCommaIndex < 0 || lastCommaIndex <= firstCommaIndex)
{
throw new FormatException("Input line does not contain expected comma separators.");
}
ReadOnlySpan<char> pSpan = span[..firstCommaIndex];
ReadOnlySpan<char> isPerfectSpan = span[(lastCommaIndex + 1)..];
ulong p = ulong.Parse(pSpan, NumberStyles.Integer, CultureInfo.InvariantCulture);
bool isPerfect = bool.Parse(isPerfectSpan);
return new CandidateResult(p, isPerfect, trimmedLine);
}
private static string BuildOutputPath(string inputPath, string prefix)
{
string fileName = Path.GetFileName(inputPath);
string prefixedName = prefix + fileName;
string? directory = Path.GetDirectoryName(inputPath);
if (string.IsNullOrEmpty(directory))
{
return prefixedName;
}
return Path.Combine(directory, prefixedName);
}
private static void WriteCsv(string path, string header, IEnumerable<CandidateResult> entries)
{
using StreamWriter writer = new(path, false, Encoding.UTF8);
writer.WriteLine(header);
foreach (CandidateResult entry in entries)
{
writer.WriteLine(entry.ToCsv());
}
}
private static void BubbleSort(List<CandidateResult> results)
{
if (results.Count < 2)
{
return;
}
int length = results.Count;
bool swapped;
do
{
swapped = false;
for (int i = 1; i < length; i++)
{
if (results[i - 1].P <= results[i].P)
{
continue;
}
(results[i - 1], results[i]) = (results[i], results[i - 1]);
swapped = true;
}
length--;
}
while (swapped);
}
private static void DrainPrimeMatches(
List<CandidateResult> pendingResults,
List<CandidateResult> primeResults,
ref ulong currentPrime,
IEnumerator<ulong> primeEnumerator,
bool inputCompleted)
{
if (pendingResults.Count == 0)
{
return;
}
RemoveEntriesBelowPrime(pendingResults, currentPrime);
while (pendingResults.Count > 0)
{
bool extractedPrime = ExtractPrimeEntries(pendingResults, primeResults, currentPrime);
if (extractedPrime)
{
if (!TryAdvancePrime(primeEnumerator, ref currentPrime))
{
pendingResults.Clear();
return;
}
RemoveEntriesBelowPrime(pendingResults, currentPrime);
continue;
}
if (!inputCompleted)
{
return;
}
if (!TryAdvancePrime(primeEnumerator, ref currentPrime))
{
pendingResults.Clear();
return;
}
RemoveEntriesBelowPrime(pendingResults, currentPrime);
}
}
private static bool ExtractPrimeEntries(
List<CandidateResult> pendingResults,
List<CandidateResult> primeResults,
ulong prime)
{
bool found = false;
for (int i = 0; i < pendingResults.Count; i++)
{
CandidateResult candidate = pendingResults[i];
if (candidate.P != prime)
{
continue;
}
primeResults.Add(candidate);
pendingResults.RemoveAt(i);
i--;
found = true;
}
return found;
}
private static void RemoveEntriesBelowPrime(List<CandidateResult> pendingResults, ulong currentPrime)
{
for (int i = 0; i < pendingResults.Count; i++)
{
if (pendingResults[i].P >= currentPrime)
{
continue;
}
pendingResults.RemoveAt(i);
i--;
}
}
private static bool TryAdvancePrime(IEnumerator<ulong> primeEnumerator, ref ulong currentPrime)
{
if (!primeEnumerator.MoveNext())
{
currentPrime = ulong.MaxValue;
return false;
}
currentPrime = primeEnumerator.Current;
return true;
}
private readonly record struct CandidateResult(ulong P, bool IsPerfect, string Csv)
{
public string ToCsv()
{
return Csv;
}
}
}
EvenPerfectScanner.sln
+32 -27
View File
@@ -1,4 +1,4 @@
Microsoft Visual Studio Solution File, Format Version 12.00 Microsoft Visual Studio Solution File, Format Version 12.00
# Visual Studio Version 17 # Visual Studio Version 17
VisualStudioVersion = 17.0.31903.59 VisualStudioVersion = 17.0.31903.59
MinimumVisualStudioVersion = 10.0.40219.1 MinimumVisualStudioVersion = 10.0.40219.1
@@ -10,31 +10,36 @@ Project("{FAE04EC0-301F-11D3-BF4B-00C04F79EFBC}") = "EvenPerfectBitScanner", "Ev
EndProject EndProject
Project("{FAE04EC0-301F-11D3-BF4B-00C04F79EFBC}") = "EvenPerfectBitScanner.Tests", "EvenPerfectBitScanner.Tests\EvenPerfectBitScanner.Tests.csproj", "{65ED9CC9-BB94-4FA5-940E-B84B3EE87DA7}" Project("{FAE04EC0-301F-11D3-BF4B-00C04F79EFBC}") = "EvenPerfectBitScanner.Tests", "EvenPerfectBitScanner.Tests\EvenPerfectBitScanner.Tests.csproj", "{65ED9CC9-BB94-4FA5-940E-B84B3EE87DA7}"
EndProject EndProject
Project("{FAE04EC0-301F-11D3-BF4B-00C04F79EFBC}") = "EvenPerfectBitScanner.ResultsParser", "EvenPerfectBitScanner.ResultsParser\EvenPerfectBitScanner.ResultsParser.csproj", "{B07A718C-A71C-410D-A0D7-FA1674CEB38F}"
EndProject
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GlobalSection(SolutionProperties) = preSolution GlobalSection(SolutionProperties) = preSolution
HideSolutionNode = FALSE HideSolutionNode = FALSE
EndGlobalSection EndGlobalSection
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