Romanization/Languages/Greek/Ancient/BetaCode.cs
using Romanization.Internal;
using System;
using System.Collections.Generic;
using System.Diagnostics.Contracts;
using System.Globalization;
// ReSharper disable CheckNamespace
// ReSharper disable CommentTypo
// ReSharper disable IdentifierTypo
// ReSharper disable StringLiteralTypo
// ReSharper disable InconsistentNaming
namespace Romanization
{
public static partial class Greek
{
public static partial class Ancient
{
/// <summary>
/// The Beta Code Greek romanization system.<br />
/// For more information, visit:
/// <a href='https://en.wikipedia.org/wiki/Beta_Code'>https://en.wikipedia.org/wiki/Beta_Code</a>
/// </summary>
public sealed class BetaCode : IMultiInCultureSystem
{
/// <inheritdoc />
public SystemType Type => SystemType.Transliteration;
/// <inheritdoc />
public CultureInfo DefaultCulture => CultureInfo.GetCultureInfo("el-GR");
// System-Specific Constants
private readonly Dictionary<string, string> DiacriticsTable = new Dictionary<string, string>();
private readonly Dictionary<string, string> PunctuationTable = new Dictionary<string, string>();
private readonly Dictionary<string, string> CommonReplacementTable = new Dictionary<string, string>();
//private readonly Dictionary<string, string> FullReplacementTable = new Dictionary<string, string>();
/// <summary>
/// Instantiates a copy of the system to process romanizations.
/// </summary>
public BetaCode()
{
#region Common Replacement Chart
// Sourced from https://en.wikipedia.org/wiki/Beta_Code and http://stephanus.tlg.uci.edu/encoding/BCM.pdf
// Diacritics
DiacriticsTable["\u0313"] = ")"; // Smooth breathing
DiacriticsTable["\u0314"] = "("; // Rough breathing
DiacriticsTable["\u0301"] = "/"; // Acute accent
DiacriticsTable["\u0342"] = "="; // Circumflex accent
DiacriticsTable["\u0300"] = "\\"; // Grave accent
DiacriticsTable["\u0308"] = "+"; // Diaeresis
DiacriticsTable["\u0345"] = "|"; // Iota subscript
DiacriticsTable["\u0304"] = "&"; // Macron
DiacriticsTable["\u0306"] = "'"; // Breve
// Punctuation
//PunctuationTable["."] = "."; // Low dot
//PunctuationTable[","] = ","; // Comma
PunctuationTable["\u0387"] = ":"; // Mid dot
//PunctuationTable[";"] = ";"; // Question mark
PunctuationTable["\u037E"] = ";"; // Distinct from above but visually the same
PunctuationTable["\u02D9"] = "#762"; // High dot (in ancient Greek this acted as a full stop)
PunctuationTable["\u205A"] = "#52"; // In ancient texts the Greek two-dot punctuation mark (looks like a colon) served as the full stop
//PunctuationTable["'"] = "'"; // Apostrophe
PunctuationTable["’"] = "'"; // Distinct from above but visually the same
//PunctuationTable["-"] = "-"; // Hyphen
PunctuationTable["‐"] = "-"; // Distinct from above but visually the same
PunctuationTable["—"] = "_"; // Dash
PunctuationTable["ʹ"] = "#"; // Keraia
PunctuationTable["ʹ"] = "#"; // Distinct from above but visually the same
PunctuationTable["ʺ"] = "#"; // Double Keraia
// Main characters (2021)
CommonReplacementTable["Α"] = "*A";
CommonReplacementTable["α"] = "A";
CommonReplacementTable["Β"] = "*B";
CommonReplacementTable["β"] = "B";
CommonReplacementTable["Γ"] = "*G";
CommonReplacementTable["γ"] = "G";
CommonReplacementTable["Δ"] = "*D";
CommonReplacementTable["δ"] = "D";
CommonReplacementTable["Ε"] = "*E";
CommonReplacementTable["ε"] = "E";
CommonReplacementTable["ϝ"] = "*V"; // Digamma
CommonReplacementTable["ͷ"] = "V"; // Digamma
CommonReplacementTable["Ζ"] = "*Z";
CommonReplacementTable["ζ"] = "Z";
CommonReplacementTable["Η"] = "*H";
CommonReplacementTable["η"] = "H";
CommonReplacementTable["Θ"] = "*Q";
CommonReplacementTable["θ"] = "Q";
CommonReplacementTable["Ι"] = "*I";
CommonReplacementTable["ι"] = "I";
CommonReplacementTable["Κ"] = "*K";
CommonReplacementTable["κ"] = "K";
CommonReplacementTable["Λ"] = "*L";
CommonReplacementTable["λ"] = "L";
CommonReplacementTable["Μ"] = "*M";
CommonReplacementTable["μ"] = "M";
CommonReplacementTable["Ν"] = "*N";
CommonReplacementTable["ν"] = "N";
CommonReplacementTable["Ξ"] = "*C";
CommonReplacementTable["ξ"] = "C";
CommonReplacementTable["Ο"] = "*O";
CommonReplacementTable["ο"] = "O";
CommonReplacementTable["Π"] = "*P";
CommonReplacementTable["π"] = "P";
CommonReplacementTable["Ρ"] = "*R";
CommonReplacementTable["ρ"] = "R";
CommonReplacementTable["Σ"] = "*S";
CommonReplacementTable["σ"] = "S1";
CommonReplacementTable["ς"] = "S2";
CommonReplacementTable["Ϲ"] = "*S3"; // Lunate sigma
CommonReplacementTable["ϲ"] = "S3"; // Lunate sigma
CommonReplacementTable["Τ"] = "*T";
CommonReplacementTable["τ"] = "T";
CommonReplacementTable["Υ"] = "*U";
CommonReplacementTable["υ"] = "U";
CommonReplacementTable["Φ"] = "*F";
CommonReplacementTable["φ"] = "F";
CommonReplacementTable["Χ"] = "*X";
CommonReplacementTable["χ"] = "X";
CommonReplacementTable["Ψ"] = "*Y";
CommonReplacementTable["ψ"] = "Y";
CommonReplacementTable["Ω"] = "*W";
CommonReplacementTable["ω"] = "W";
// Uncommon letters
CommonReplacementTable["Ϛ"] = "*#2"; // Stigma
CommonReplacementTable["ϛ"] = "#2"; // Stigma
CommonReplacementTable["Ϙ"] = "*#3"; // Koppa
CommonReplacementTable["ϙ"] = "#3"; // Koppa
CommonReplacementTable["Ϟ"] = "*#3"; // Koppa
CommonReplacementTable["ϟ"] = "#3"; // Koppa
CommonReplacementTable["Ϡ"] = "*#5"; // Sampi
CommonReplacementTable["ϡ"] = "#5"; // Sampi
CommonReplacementTable["Ͳ"] = "*#5"; // Sampi
CommonReplacementTable["ͳ"] = "#5"; // Sampi
CommonReplacementTable["Ϻ"] = "*#711"; // San
CommonReplacementTable["ϻ"] = "#711"; // San
CommonReplacementTable["Ϳ"] = "*#401"; // Yot
CommonReplacementTable["ϳ"] = "#401"; // Yot
#endregion
}
/// <summary>
/// Performs Beta Code Greek romanization on the given text.<br />
/// Supports providing a specific <paramref name="nativeCulture"/> to process with, as long as the
/// country code is <c>el</c>.
/// </summary>
/// <param name="text">The text to romanize.</param>
/// <param name="nativeCulture">The culture to romanize from.</param>
/// <returns>A romanized version of the text, leaving unrecognized characters untouched.</returns>
/// <exception cref="IrrelevantCultureException"><paramref name="nativeCulture"/> is irrelevant to the
/// language/region.</exception>
[Pure]
public string Process(string text, CultureInfo nativeCulture)
{
if (nativeCulture.TwoLetterISOLanguageName.ToLowerInvariant() != "el")
throw new IrrelevantCultureException(nativeCulture.DisplayName, nameof(nativeCulture));
return CulturalOperations.RunWithCulture(nativeCulture, () => text
// General preparation, normalization
.LanguageWidePreparation()
// Do common replacements
.ReplaceFromChart(DiacriticsTable, StringComparison.Ordinal)
.ReplaceFromChart(PunctuationTable, StringComparison.Ordinal)
.ReplaceFromChart(CommonReplacementTable));
}
/// <summary>
/// Performs Beta Code Greek romanization on the given text.
/// </summary>
/// <param name="text">The text to romanize.</param>
/// <returns>A romanized version of the text, leaving unrecognized characters untouched.</returns>
[Pure]
public string Process(string text)
=> Process(text, DefaultCulture);
}
}
}
}