Add dictionary generation

.gitignore

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+# End of https://www.toptal.com/developers/gitignore/api/csharp
+.idea

PoyoLang.Analysis.NGrams/PoyoLang.Analysis.NGrams.csproj

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+<Project Sdk="Microsoft.NET.Sdk">
+
+    <PropertyGroup>
+        <OutputType>Exe</OutputType>
+        <TargetFramework>net9.0</TargetFramework>
+        <ImplicitUsings>enable</ImplicitUsings>
+        <Nullable>enable</Nullable>
+    </PropertyGroup>
+
+    <ItemGroup>
+      <None Remove="60000 Most Frequent Words in American English - Corpus of Contemporary American English.xlsx" />
+      <EmbeddedResource Include="60000 Most Frequent Words in American English - Corpus of Contemporary American English.xlsx" />
+    </ItemGroup>
+
+    <ItemGroup>
+      <PackageReference Include="ClosedXML" Version="0.104.2" />
+    </ItemGroup>
+
+</Project>

PoyoLang.Analysis.NGrams/Program.cs

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+// See https://aka.ms/new-console-template for more information
+
+// Load up the file
+
+using System.Reflection;
+using System.Runtime.CompilerServices;
+using System.Text.Json;
+using ClosedXML.Excel;
+
+Console.WriteLine("Reading Excel file...");
+
+// Load Excel data file
+const string ExcelFilePath = "PoyoLang.Analysis.NGrams.60000 Most Frequent Words in American English - Corpus of Contemporary American English.xlsx";
+
+using var excelFileStream = Assembly.GetExecutingAssembly().GetManifestResourceStream(ExcelFilePath);
+
+using var workBook = new XLWorkbook(excelFileStream);
+var worksheet = workBook.Worksheet("List");
+
+Console.WriteLine("Reading word frequencies");
+
+// Read word frequencies
+var wordColumn = "C";
+var frequencyColumn = "D";
+
+var wordFrequencies = new List<(string word, long frequency)>();
+
+var row = 2;
+
+while (true)
+{
+    var wordValue = worksheet.Cell(row, wordColumn).Value;
+
+    if (wordValue.IsBlank)
+    {
+        break;
+    }
+
+    var word = $"{wordValue.GetText().Trim().ToLowerInvariant()} ";
+    var frequency = (long)worksheet.Cell(row, frequencyColumn).GetDouble();
+
+    if (!word.Contains('('))
+    {
+        wordFrequencies.Add((word, frequency));
+    }
+
+    row++;
+}
+
+Console.WriteLine("Computing ngrams");
+
+// Compute n-grams
+var ngrams = new Dictionary<string, long>();
+
+const int MaxLength = 5;
+const int MinLength = 1;
+
+foreach (var (word, frequency) in wordFrequencies)
+{
+    var span = word.AsSpan();
+
+    while (span.Length >= MinLength)
+    {
+        for (int length = MinLength; length <= MaxLength; length++)
+        {
+            if (length > span.Length)
+            {
+                break;
+            }
+
+            Increment(span[..length]);
+        }
+
+        span = span[1..];
+    }
+
+    continue;
+
+    [MethodImpl(MethodImplOptions.AggressiveInlining)]
+    void Increment(ReadOnlySpan<char> span)
+    {
+        var ngram = span.ToString();
+
+        if (ngrams.TryGetValue(ngram, out var count))
+        {
+            ngrams[ngram] = count + frequency;
+        }
+        else
+        {
+            ngrams[ngram] = frequency;
+        }
+    }
+}
+
+// Order frequencies
+var orderedNgrams = ngrams
+    .OrderByDescending(n => n.Value)
+    .ToList();
+
+Console.WriteLine($"Found {orderedNgrams.Count} n-grams");
+
+var serializedNgrams = JsonSerializer.Serialize(orderedNgrams, new JsonSerializerOptions() { WriteIndented = true});
+
+await File.WriteAllTextAsync("n-grams.json", serializedNgrams);
+

PoyoLang.Dictionary.Generation/PoyoLang.Dictionary.Generation.csproj

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+<Project Sdk="Microsoft.NET.Sdk">
+
+    <PropertyGroup>
+        <OutputType>Exe</OutputType>
+        <TargetFramework>net9.0</TargetFramework>
+        <ImplicitUsings>enable</ImplicitUsings>
+        <Nullable>enable</Nullable>
+    </PropertyGroup>
+
+    <ItemGroup>
+      <EmbeddedResource Include="60000 Most Frequent Words in American English - Corpus of Contemporary American English.xlsx" />
+    </ItemGroup>
+
+    <ItemGroup>
+      <PackageReference Include="ClosedXML" Version="0.104.2" />
+    </ItemGroup>
+
+    <ItemGroup>
+      <ProjectReference Include="..\PoyoLang.Dictionary\PoyoLang.Dictionary.csproj" />
+    </ItemGroup>
+
+</Project>

PoyoLang.Dictionary.Generation/Program.cs

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+// See https://aka.ms/new-console-template for more information
+
+// Load up the file
+
+using System.Reflection;
+using System.Runtime.CompilerServices;
+using System.Text.Json;
+using ClosedXML.Excel;
+using PoyoLang.Dictionary;
+
+const string ExcelFilePath = "PoyoLang.Dictionary.Generation.60000 Most Frequent Words in American English - Corpus of Contemporary American English.xlsx";
+
+JsonSerializerOptions jsonOptions = new JsonSerializerOptions() { WriteIndented = true };
+
+Console.WriteLine("Reading Excel file...");
+
+// Load Excel data file
+await using var excelFileStream = Assembly.GetExecutingAssembly().GetManifestResourceStream(ExcelFilePath);
+
+using var workBook = new XLWorkbook(excelFileStream);
+var worksheet = workBook.Worksheet("List");
+
+Console.WriteLine("Reading word frequencies");
+
+// Read word frequencies
+var wordColumn = "C";
+var frequencyColumn = "D";
+
+var wordFrequencies = new List<(string word, long frequency)>();
+
+var row = 2;
+
+while (true)
+{
+    var wordValue = worksheet.Cell(row, wordColumn).Value;
+
+    if (wordValue.IsBlank)
+    {
+        break;
+    }
+
+    var word = $"{wordValue.GetText().Trim().ToLowerInvariant()} ";
+    var frequency = (long)worksheet.Cell(row, frequencyColumn).GetDouble();
+
+    if (!word.Contains('('))
+    {
+        wordFrequencies.Add((word, frequency));
+    }
+
+    row++;
+}
+
+Console.WriteLine("Computing ngrams");
+
+// Compute n-grams
+var ngrams = new Dictionary<string, long>();
+
+const int MaxLength = 8;
+const int MinLength = 1;
+
+foreach (var (word, frequency) in wordFrequencies)
+{
+    var span = word.AsSpan();
+
+    while (span.Length >= MinLength)
+    {
+        for (int length = MinLength; length <= MaxLength; length++)
+        {
+            if (length > span.Length)
+            {
+                break;
+            }
+
+            Increment(span[..length]);
+        }
+
+        span = span[1..];
+    }
+
+    continue;
+
+    [MethodImpl(MethodImplOptions.AggressiveInlining)]
+    void Increment(ReadOnlySpan<char> span)
+    {
+        var ngram = span.ToString();
+
+        if (ngrams.TryGetValue(ngram, out var count))
+        {
+            ngrams[ngram] = count + frequency;
+        }
+        else
+        {
+            ngrams[ngram] = frequency;
+        }
+    }
+}
+
+// Order frequencies
+var orderedNgrams = ngrams
+    .OrderByDescending(n => n.Value)
+    .ToList();
+
+Console.WriteLine($"Found {orderedNgrams.Count} n-grams");
+
+var serializedNgrams = JsonSerializer.Serialize(orderedNgrams, jsonOptions);
+
+await File.WriteAllTextAsync("n-grams.json", serializedNgrams);
+
+Console.WriteLine("Generating dictionary...");
+
+// Generate dictionary
+var dictionary = new Dictionary<string, string>();
+var ngramIndex = 0;
+
+foreach (var letter in Alphabet.BaseAlphabet)
+{
+    dictionary[letter] = orderedNgrams[ngramIndex].Key;
+
+    ngramIndex++;
+}
+
+await File.WriteAllTextAsync("dictionary.json", JsonSerializer.Serialize(dictionary, jsonOptions));
+
+Console.WriteLine($"Dictionary written to {Path.Combine(Environment.CurrentDirectory, "dictionary.json")}");

PoyoLang.Dictionary/Alphabet.cs

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+namespace PoyoLang.Dictionary;
+
+public static class Alphabet
+{
+    public static char[] OVariations { get; } =
+    [
+        'o',
+        'ó',
+        'ò',
+        'ô',
+        'ö',
+        'õ',
+        'ō',
+        'ǒ'
+    ];
+
+    public static char[] VowelVariations { get; } =
+    [
+
+        // o
+        'o', 'ó', 'ò', 'ô', 'ö', 'õ', 'ō', 'ǒ',
+
+        // a
+        'a', 'á', 'à', 'â', 'ä', 'ã', 'ā', 'ǎ',
+
+        // i
+        'i', 'í', 'ì', 'î', 'ï', 'ĩ', 'ī', 'ǐ',
+
+        // u
+        'u', 'ú', 'ù', 'û', 'ü', 'ũ', 'ū', 'ǔ',
+
+        // e
+        'e', 'é', 'è', 'ê', 'ë', 'ẽ', 'ē', 'ě'
+    ];
+
+    public static string[] BaseAlphabet { get; } = VowelVariations
+        .Select(leftVowel =>
+                OVariations.Select(rightVowel => $"p{leftVowel}y{rightVowel}")
+            )
+        .SelectMany(x => x)
+        .ToArray();
+
+
+}

PoyoLang.Dictionary/PoyoLang.Dictionary.csproj

@@ -0,0 +1,9 @@
+<Project Sdk="Microsoft.NET.Sdk">
+
+    <PropertyGroup>
+        <TargetFramework>net9.0</TargetFramework>
+        <ImplicitUsings>enable</ImplicitUsings>
+        <Nullable>enable</Nullable>
+    </PropertyGroup>
+
+</Project>

PoyoLang.Test/PoyoLang.Test.csproj

@@ -0,0 +1,14 @@
+<Project Sdk="Microsoft.NET.Sdk">
+
+    <PropertyGroup>
+        <OutputType>Exe</OutputType>
+        <TargetFramework>net9.0</TargetFramework>
+        <ImplicitUsings>enable</ImplicitUsings>
+        <Nullable>enable</Nullable>
+    </PropertyGroup>
+
+    <ItemGroup>
+      <ProjectReference Include="..\PoyoLang.Dictionary\PoyoLang.Dictionary.csproj" />
+    </ItemGroup>
+
+</Project>

PoyoLang.Test/Program.cs

@@ -0,0 +1,9 @@
+// See https://aka.ms/new-console-template for more information
+
+using PoyoLang.Dictionary;
+
+Console.OutputEncoding = System.Text.Encoding.UTF8;
+
+Console.WriteLine(string.Join(Environment.NewLine, Alphabet.BaseAlphabet));
+
+Console.WriteLine(Alphabet.BaseAlphabet.Length);

PoyoLang.sln

@@ -0,0 +1,28 @@
+
+Microsoft Visual Studio Solution File, Format Version 12.00
+Project("{FAE04EC0-301F-11D3-BF4B-00C04F79EFBC}") = "PoyoLang.Dictionary", "PoyoLang.Dictionary\PoyoLang.Dictionary.csproj", "{2D875AAD-BE17-4D15-A876-19DF1DCC57F5}"
+EndProject
+Project("{FAE04EC0-301F-11D3-BF4B-00C04F79EFBC}") = "PoyoLang.Test", "PoyoLang.Test\PoyoLang.Test.csproj", "{4CB193B2-44F2-4926-A56E-9A0CDCBC828C}"
+EndProject
+Project("{FAE04EC0-301F-11D3-BF4B-00C04F79EFBC}") = "PoyoLang.Dictionary.Generation", "PoyoLang.Dictionary.Generation\PoyoLang.Dictionary.Generation.csproj", "{43FFCEF2-A4AA-49A1-9731-CB6DAD9863F2}"
+EndProject
+Global
+	GlobalSection(SolutionConfigurationPlatforms) = preSolution
+		Debug|Any CPU = Debug|Any CPU
+		Release|Any CPU = Release|Any CPU
+	EndGlobalSection
+	GlobalSection(ProjectConfigurationPlatforms) = postSolution
+		{2D875AAD-BE17-4D15-A876-19DF1DCC57F5}.Debug|Any CPU.ActiveCfg = Debug|Any CPU
+		{2D875AAD-BE17-4D15-A876-19DF1DCC57F5}.Debug|Any CPU.Build.0 = Debug|Any CPU
+		{2D875AAD-BE17-4D15-A876-19DF1DCC57F5}.Release|Any CPU.ActiveCfg = Release|Any CPU
+		{2D875AAD-BE17-4D15-A876-19DF1DCC57F5}.Release|Any CPU.Build.0 = Release|Any CPU
+		{4CB193B2-44F2-4926-A56E-9A0CDCBC828C}.Debug|Any CPU.ActiveCfg = Debug|Any CPU
+		{4CB193B2-44F2-4926-A56E-9A0CDCBC828C}.Debug|Any CPU.Build.0 = Debug|Any CPU
+		{4CB193B2-44F2-4926-A56E-9A0CDCBC828C}.Release|Any CPU.ActiveCfg = Release|Any CPU
+		{4CB193B2-44F2-4926-A56E-9A0CDCBC828C}.Release|Any CPU.Build.0 = Release|Any CPU
+		{43FFCEF2-A4AA-49A1-9731-CB6DAD9863F2}.Debug|Any CPU.ActiveCfg = Debug|Any CPU
+		{43FFCEF2-A4AA-49A1-9731-CB6DAD9863F2}.Debug|Any CPU.Build.0 = Debug|Any CPU
+		{43FFCEF2-A4AA-49A1-9731-CB6DAD9863F2}.Release|Any CPU.ActiveCfg = Release|Any CPU
+		{43FFCEF2-A4AA-49A1-9731-CB6DAD9863F2}.Release|Any CPU.Build.0 = Release|Any CPU
+	EndGlobalSection
+EndGlobal