Import YamlDotNet.

2022-12-12 22:23:49 +08:00
parent f559cea826
commit 1477e907e6
462 changed files with 27142 additions and 0 deletions
--- a/Assets/YamlDotNet/Core/AnchorName.cs
+++ b/Assets/YamlDotNet/Core/AnchorName.cs
@@ -0,0 +1,76 @@
+// This file is part of YamlDotNet - A .NET library for YAML.
+// Copyright (c) Antoine Aubry and contributors
+//
+// Permission is hereby granted, free of charge, to any person obtaining a copy of
+// this software and associated documentation files (the "Software"), to deal in
+// the Software without restriction, including without limitation the rights to
+// use, copy, modify, merge, publish, distribute, sublicense, and/or sell copies
+// of the Software, and to permit persons to whom the Software is furnished to do
+// so, subject to the following conditions:
+//
+// The above copyright notice and this permission notice shall be included in all
+// copies or substantial portions of the Software.
+//
+// THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+// IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+// FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
+// AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+// LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
+// OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
+// SOFTWARE.
+
+using System;
+using System.Text.RegularExpressions;
+
+namespace YamlDotNet.Core
+{
+    public struct AnchorName : IEquatable<AnchorName>
+    {
+        public static readonly AnchorName Empty = default;
+
+        // https://yaml.org/spec/1.2/spec.html#id2785586
+        private static readonly Regex AnchorPattern = new Regex(@"^[^\[\]\{\},]+$", StandardRegexOptions.Compiled);
+
+        private readonly string? value;
+
+        public string Value => value ?? throw new InvalidOperationException("Cannot read the Value of an empty anchor");
+
+        public bool IsEmpty => value is null;
+
+        public AnchorName(string value)
+        {
+            this.value = value ?? throw new ArgumentNullException(nameof(value));
+
+            if (!AnchorPattern.IsMatch(value))
+            {
+                throw new ArgumentException($"Anchor cannot be empty or contain disallowed characters: []{{}},\nThe value was '{value}'.", nameof(value));
+            }
+        }
+
+        public override string ToString() => value ?? "[empty]";
+
+        public bool Equals(AnchorName other) => Equals(value, other.value);
+
+        public override bool Equals(object? obj)
+        {
+            return obj is AnchorName other && Equals(other);
+        }
+
+        public override int GetHashCode()
+        {
+            return value?.GetHashCode() ?? 0;
+        }
+
+        public static bool operator ==(AnchorName left, AnchorName right)
+        {
+            return left.Equals(right);
+        }
+
+        public static bool operator !=(AnchorName left, AnchorName right)
+        {
+            return !(left == right);
+        }
+
+        public static implicit operator AnchorName(string? value) => value == null ? Empty : new AnchorName(value);
+    }
+}