wehub-resource-sync
75 lines
2.7 KiB
C#
75 lines
2.7 KiB
C#
#nullable enable
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namespace T3.Editor.Gui.UiHelpers;
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public class CSharpValidator
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{
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public static bool IsValidNamespace(string input)
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{
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if (string.IsNullOrWhiteSpace(input) || input.StartsWith('.') || input.EndsWith('.'))
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return false;
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var span = input.AsSpan();
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var lastDot = -1;
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for (var i = 0; i < span.Length; i++)
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{
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if (span[i] == '.')
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{
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if (i == lastDot + 1) return false; // Consecutive dots
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if (!IsValidIdentifier(span.Slice(lastDot + 1, i - lastDot - 1))) return false;
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lastDot = i;
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}
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}
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return IsValidIdentifier(span.Slice(lastDot + 1));
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}
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public static bool IsValidClassName(string className)
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{
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return IsValidIdentifier(className.AsSpan());
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}
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private static bool IsValidIdentifier(ReadOnlySpan<char> identifier)
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{
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if (identifier.IsEmpty || IsCSharpKeyword(identifier))
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return false;
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if (!IsValidIdentifierStart(identifier[0])) return false;
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for (var i = 1; i < identifier.Length; i++)
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{
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if (!IsValidIdentifierChar(identifier[i])) return false;
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}
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return true;
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}
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private static bool IsValidIdentifierStart(char c)
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{
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return char.IsLetter(c) || c == '_';
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}
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private static bool IsValidIdentifierChar(char c)
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{
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return char.IsLetterOrDigit(c) || c == '_';
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}
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private static bool IsCSharpKeyword(ReadOnlySpan<char> identifier)
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{
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return _cSharpKeywords.Contains(identifier.ToString()); // Minimal allocation here
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}
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private static readonly HashSet<string> _cSharpKeywords
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= new(StringComparer.Ordinal)
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{
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"abstract", "as", "base", "bool", "break", "byte", "case", "catch", "char", "checked", "class", "const",
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"continue", "decimal", "default", "delegate", "do", "double", "else", "enum", "event", "explicit",
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"extern", "false", "finally", "fixed", "float", "for", "foreach", "goto", "if", "implicit", "in",
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"int", "interface", "internal", "is", "lock", "long", "namespace", "new", "null", "object", "operator",
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"out", "override", "params", "private", "protected", "public", "readonly", "ref", "return", "sbyte",
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"sealed", "short", "sizeof", "stackalloc", "static", "string", "struct", "switch", "this", "throw",
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"true", "try", "typeof", "uint", "ulong", "unchecked", "unsafe", "ushort", "using", "virtual", "void",
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"volatile", "while"
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};
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} |