Update Humanizer

ICSharpCode.Decompiler/Humanizer/StringHumanizeExtensions.cs

@@ -0,0 +1,23 @@
+namespace Humanizer.Inflections;
+
+using CharSpan = System.ReadOnlySpan<System.Char>;
+
+/// <summary>
+/// Contains extension methods for humanizing string values.
+/// </summary>
+internal static class StringHumanizeExtensions
+{
+	internal static unsafe string Concat(CharSpan left, CharSpan right)
+	{
+		var result = new string('\0', left.Length + right.Length);
+		fixed (char* pResult = result)
+		{
+			left.CopyTo(new(pResult, left.Length));
+			right.CopyTo(new(pResult + left.Length, right.Length));
+		}
+		return result;
+	}
+
+	internal static unsafe string Concat(char left, CharSpan right) =>
+		Concat(new CharSpan(&left, 1), right);
+}

ICSharpCode.Decompiler/Humanizer/Vocabularies.cs

@@ -1,19 +1,14 @@
 using System;
 using System.Threading;
 
-namespace Humanizer.Inflections
-{
-	/// <summary>
-	/// Container for registered Vocabularies.  At present, only a single vocabulary is supported: Default.
-	/// </summary>
-	internal static class Vocabularies
-	{
-		private static readonly Lazy<Vocabulary> Instance;
+namespace Humanizer.Inflections;
 
-		static Vocabularies()
-		{
-			Instance = new Lazy<Vocabulary>(BuildDefault, LazyThreadSafetyMode.PublicationOnly);
-		}
+/// <summary>
+/// Container for registered Vocabularies.  At present, only a single vocabulary is supported: Default.
+/// </summary>
+internal static class Vocabularies
+{
+	static readonly Lazy<Vocabulary> Instance = new(BuildDefault, LazyThreadSafetyMode.PublicationOnly);
 
 	/// <summary>
 	/// The default vocabulary used for singular/plural irregularities.
@@ -22,7 +17,7 @@ namespace Humanizer.Inflections
 	/// </summary>
 	public static Vocabulary Default => Instance.Value;
 
-		private static Vocabulary BuildDefault()
+	static Vocabulary BuildDefault()
 	{
 		var _default = new Vocabulary();
 
@@ -38,7 +33,7 @@ namespace Humanizer.Inflections
 		_default.AddPlural("(hive)$", "$1s");
 		_default.AddPlural("([^aeiouy]|qu)y$", "$1ies");
 		_default.AddPlural("(x|ch|ss|sh)$", "$1es");
-			_default.AddPlural("(matr|vert|ind|d)ix|ex$", "$1ices");
+		_default.AddPlural("(matr|vert|ind|d)(ix|ex)$", "$1ices");
 		_default.AddPlural("(^[m|l])ouse$", "$1ice");
 		_default.AddPlural("^(ox)$", "$1en");
 		_default.AddPlural("(quiz)$", "$1zes");
@@ -60,7 +55,7 @@ namespace Humanizer.Inflections
 		_default.AddSingular("(m)ovies$", "$1ovie");
 		_default.AddSingular("(x|ch|ss|sh)es$", "$1");
 		_default.AddSingular("(^[m|l])ice$", "$1ouse");
-			_default.AddSingular("(o)es$", "$1");
+		_default.AddSingular("(?<!^[a-z])(o)es$", "$1");
 		_default.AddSingular("(shoe)s$", "$1");
 		_default.AddSingular("(cris|ax|test)es$", "$1is");
 		_default.AddSingular("(octop|vir|alumn|fung|cact|foc|hippopotam|radi|stimul|syllab|nucle)i$", "$1us");
@@ -83,26 +78,28 @@ namespace Humanizer.Inflections
 		_default.AddIrregular("move", "moves");
 		_default.AddIrregular("goose", "geese");
 		_default.AddIrregular("wave", "waves");
-			_default.AddIrregular("die", "dice");
 		_default.AddIrregular("foot", "feet");
 		_default.AddIrregular("tooth", "teeth");
 		_default.AddIrregular("curriculum", "curricula");
 		_default.AddIrregular("database", "databases");
 		_default.AddIrregular("zombie", "zombies");
 		_default.AddIrregular("personnel", "personnel");
-			//Fix #789
 		_default.AddIrregular("cache", "caches");
-
-			//Fix 975
 		_default.AddIrregular("ex", "exes", matchEnding: false);
-
 		_default.AddIrregular("is", "are", matchEnding: false);
+		_default.AddIrregular("was", "were", matchEnding: false);
 		_default.AddIrregular("that", "those", matchEnding: false);
 		_default.AddIrregular("this", "these", matchEnding: false);
 		_default.AddIrregular("bus", "buses", matchEnding: false);
-			_default.AddIrregular("staff", "staff", matchEnding: false);
-			_default.AddIrregular("training", "training", matchEnding: false);
+		_default.AddIrregular("die", "dice", matchEnding: false);
+		_default.AddIrregular("tie", "ties", matchEnding: false);
+		_default.AddIrregular("lens", "lenses");
+		_default.AddIrregular("clove", "cloves");
+		_default.AddIrregular("valve", "valves");
+		_default.AddIrregular("explosive", "explosives");
 
+		_default.AddUncountable("staff");
+		_default.AddUncountable("training");
 		_default.AddUncountable("equipment");
 		_default.AddUncountable("information");
 		_default.AddUncountable("corn");
@@ -142,8 +139,16 @@ namespace Humanizer.Inflections
 		_default.AddUncountable("scissors");
 		_default.AddUncountable("means");
 		_default.AddUncountable("mail");
+		_default.AddUncountable("pliers");
+		_default.AddUncountable("sheers");
+		_default.AddUncountable("clothes");
+		_default.AddUncountable("apparatus");
+		_default.AddUncountable("chassis");
+		_default.AddUncountable("debris");
+
+		//Fix 1132
+		_default.AddUncountable("metadata");
 
 		return _default;
 	}
-	}
 }

ICSharpCode.Decompiler/Humanizer/Vocabulary.cs

@@ -1,22 +1,27 @@
-using System.Collections.Generic;
+using System;
+using System.Collections.Generic;
+using System.Diagnostics.CodeAnalysis;
 using System.Text.RegularExpressions;
 
-namespace Humanizer.Inflections
+namespace Humanizer.Inflections;
+
+#nullable enable
+
+/// <summary>
+/// A container for exceptions to simple pluralization/singularization rules.
+/// Vocabularies.Default contains an extensive list of rules for US English.
+/// At this time, multiple vocabularies and removing existing rules are not supported.
+/// </summary>
+internal class Vocabulary
 {
-	/// <summary>
-	/// A container for exceptions to simple pluralization/singularization rules.
-	/// Vocabularies.Default contains an extensive list of rules for US English.
-	/// At this time, multiple vocabularies and removing existing rules are not supported.
-	/// </summary>
-	internal class Vocabulary
-	{
 	internal Vocabulary()
 	{
 	}
 
-		private readonly List<Rule> _plurals = new List<Rule>();
-		private readonly List<Rule> _singulars = new List<Rule>();
-		private readonly List<string> _uncountables = new List<string>();
+	readonly List<Rule> plurals = [];
+	readonly List<Rule> singulars = [];
+	readonly HashSet<string> uncountables = new(StringComparer.CurrentCultureIgnoreCase);
+	readonly Regex letterS = new("^([sS])[sS]*$");
 
 	/// <summary>
 	/// Adds a word to the vocabulary which cannot easily be pluralized/singularized by RegEx, e.g. "person" and "people".
@@ -28,8 +33,10 @@ namespace Humanizer.Inflections
 	{
 		if (matchEnding)
 		{
-				AddPlural("(" + singular[0] + ")" + singular.Substring(1) + "$", "$1" + plural.Substring(1));
-				AddSingular("(" + plural[0] + ")" + plural.Substring(1) + "$", "$1" + singular.Substring(1));
+			var singularSubstring = singular.Substring(1);
+			var pluralSubString = plural.Substring(1);
+			AddPlural($"({singular[0]}){singularSubstring}$", $"$1{pluralSubString}");
+			AddSingular($"({plural[0]}){pluralSubString}$", $"$1{singularSubstring}");
 		}
 		else
 		{
@@ -42,54 +49,63 @@ namespace Humanizer.Inflections
 	/// Adds an uncountable word to the vocabulary, e.g. "fish".  Will be ignored when plurality is changed.
 	/// </summary>
 	/// <param name="word">Word to be added to the list of uncountables.</param>
-		public void AddUncountable(string word)
-		{
-			_uncountables.Add(word.ToLower());
-		}
+	public void AddUncountable(string word) =>
+		uncountables.Add(word);
 
 	/// <summary>
 	/// Adds a rule to the vocabulary that does not follow trivial rules for pluralization, e.g. "bus" -> "buses"
 	/// </summary>
 	/// <param name="rule">RegEx to be matched, case insensitive, e.g. "(bus)es$"</param>
 	/// <param name="replacement">RegEx replacement  e.g. "$1"</param>
-		public void AddPlural(string rule, string replacement)
-		{
-			_plurals.Add(new Rule(rule, replacement));
-		}
+	public void AddPlural(string rule, string replacement) =>
+		plurals.Add(new(rule, replacement));
 
 	/// <summary>
 	/// Adds a rule to the vocabulary that does not follow trivial rules for singularization, e.g. "vertices/indices -> "vertex/index"
 	/// </summary>
 	/// <param name="rule">RegEx to be matched, case insensitive, e.g. ""(vert|ind)ices$""</param>
 	/// <param name="replacement">RegEx replacement  e.g. "$1ex"</param>
-		public void AddSingular(string rule, string replacement)
-		{
-			_singulars.Add(new Rule(rule, replacement));
-		}
+	public void AddSingular(string rule, string replacement) =>
+		singulars.Add(new(rule, replacement));
 
 	/// <summary>
 	/// Pluralizes the provided input considering irregular words
 	/// </summary>
 	/// <param name="word">Word to be pluralized</param>
 	/// <param name="inputIsKnownToBeSingular">Normally you call Pluralize on singular words; but if you're unsure call it with false</param>
-		/// <returns></returns>
-		public string Pluralize(string word, bool inputIsKnownToBeSingular = true)
+	[return: NotNullIfNotNull(nameof(word))]
+	public string? Pluralize(string? word, bool inputIsKnownToBeSingular = true)
 	{
-			var result = ApplyRules(_plurals, word, false);
+		if (word == null)
+		{
+			return null;
+		}
+
+		var s = LetterS(word);
+		if (s != null)
+		{
+			return s + "s";
+		}
+
+		var result = ApplyRules(plurals, word, false);
 
 		if (inputIsKnownToBeSingular)
 		{
 			return result ?? word;
 		}
 
-			var asSingular = ApplyRules(_singulars, word, false);
-			var asSingularAsPlural = ApplyRules(_plurals, asSingular, false);
-			if (asSingular != null && asSingular != word && asSingular + "s" != word && asSingularAsPlural == word && result != word)
+		var asSingular = ApplyRules(singulars, word, false);
+		var asSingularAsPlural = ApplyRules(plurals, asSingular, false);
+		if (asSingular != null &&
+			asSingular != word &&
+			asSingular + "s" != word &&
+			asSingularAsPlural == word &&
+			result != word)
 		{
 			return word;
 		}
 
-			return result;
+		return result!;
 	}
 
 	/// <summary>
@@ -98,10 +114,20 @@ namespace Humanizer.Inflections
 	/// <param name="word">Word to be singularized</param>
 	/// <param name="inputIsKnownToBePlural">Normally you call Singularize on plural words; but if you're unsure call it with false</param>
 	/// <param name="skipSimpleWords">Skip singularizing single words that have an 's' on the end</param>
-		/// <returns></returns>
-		public string Singularize(string word, bool inputIsKnownToBePlural = true, bool skipSimpleWords = false)
+	[return: NotNullIfNotNull(nameof(word))]
+	public string? Singularize(string? word, bool inputIsKnownToBePlural = true, bool skipSimpleWords = false)
 	{
-			var result = ApplyRules(_singulars, word, skipSimpleWords);
+		if (word == null)
+		{
+			return null;
+		}
+		var s = LetterS(word);
+		if (s != null)
+		{
+			return s;
+		}
+
+		var result = ApplyRules(singulars, word, skipSimpleWords);
 
 		if (inputIsKnownToBePlural)
 		{
@@ -109,17 +135,24 @@ namespace Humanizer.Inflections
 		}
 
 		// the Plurality is unknown so we should check all possibilities
-			var asPlural = ApplyRules(_plurals, word, false);
-			var asPluralAsSingular = ApplyRules(_singulars, asPlural, false);
-			if (asPlural != word && word + "s" != asPlural && asPluralAsSingular == word && result != word)
+		var asPlural = ApplyRules(plurals, word, false);
+		if (asPlural == word ||
+			word + "s" == asPlural)
 		{
-				return word;
+			return result ?? word;
 		}
 
+		var asPluralAsSingular = ApplyRules(singulars, asPlural, false);
+		if (asPluralAsSingular != word ||
+			result == word)
+		{
 			return result ?? word;
 		}
 
-		private string ApplyRules(IList<Rule> rules, string word, bool skipFirstRule)
+		return word;
+	}
+
+	string? ApplyRules(IList<Rule> rules, string? word, bool skipFirstRule)
 	{
 		if (word == null)
 		{
@@ -145,34 +178,43 @@ namespace Humanizer.Inflections
 				break;
 			}
 		}
-			return result;
-		}
 
-		private bool IsUncountable(string word)
+		if (result == null)
 		{
-			return _uncountables.Contains(word.ToLower());
+			return null;
 		}
 
-		private class Rule
-		{
-			private readonly Regex _regex;
-			private readonly string _replacement;
+		return MatchUpperCase(word, result);
+	}
+
+	bool IsUncountable(string word) =>
+		uncountables.Contains(word);
+
+	static string MatchUpperCase(string word, string replacement) =>
+		char.IsUpper(word[0]) &&
+		char.IsLower(replacement[0]) ? StringHumanizeExtensions.Concat(char.ToUpper(replacement[0]), replacement.AsSpan(1)) : replacement;
 
-			public Rule(string pattern, string replacement)
+	/// <summary>
+	/// If the word is the letter s, singular or plural, return the letter s singular
+	/// </summary>
+	string? LetterS(string word)
 	{
-				_regex = new Regex(pattern, RegexOptions.IgnoreCase | RegexOptions.Compiled);
-				_replacement = replacement;
+		var s = letterS.Match(word);
+		return s.Groups.Count > 1 ? s.Groups[1].Value : null;
 	}
 
-			public string Apply(string word)
+	class Rule(string pattern, string replacement)
 	{
-				if (!_regex.IsMatch(word))
+		readonly Regex regex = new(pattern, RegexOptions.IgnoreCase | RegexOptions.Compiled);
+
+		public string? Apply(string word)
+		{
+			if (!regex.IsMatch(word))
 			{
 				return null;
 			}
 
-				return _regex.Replace(word, _replacement);
-			}
+			return regex.Replace(word, replacement);
 		}
 	}
 }

ICSharpCode.Decompiler/ICSharpCode.Decompiler.csproj

@@ -108,6 +108,7 @@
     <Compile Include="DecompilationProgress.cs" />
     <Compile Include="Disassembler\IEntityProcessor.cs" />
     <Compile Include="Disassembler\SortByNameProcessor.cs" />
+    <Compile Include="Humanizer\StringHumanizeExtensions.cs" />
     <Compile Include="IL\Transforms\InlineArrayTransform.cs" />
     <Compile Include="IL\Transforms\RemoveUnconstrainedGenericReferenceTypeCheck.cs" />
     <Compile Include="Metadata\MetadataFile.cs" />