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/CharacterAnalyzer.cs
+++ b/Assets/YamlDotNet/Core/CharacterAnalyzer.cs
@@ -0,0 +1,166 @@
+// 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.Diagnostics;
+
+namespace YamlDotNet.Core
+{
+    internal sealed class CharacterAnalyzer<TBuffer> where TBuffer : class, ILookAheadBuffer
+    {
+        public CharacterAnalyzer(TBuffer buffer)
+        {
+            this.Buffer = buffer ?? throw new ArgumentNullException(nameof(buffer));
+        }
+
+        public TBuffer Buffer { get; }
+
+        public bool EndOfInput => Buffer.EndOfInput;
+
+        public char Peek(int offset)
+        {
+            return Buffer.Peek(offset);
+        }
+
+        public void Skip(int length)
+        {
+            Buffer.Skip(length);
+        }
+
+        public bool IsAlphaNumericDashOrUnderscore(int offset = 0)
+        {
+            var character = Buffer.Peek(offset);
+            return
+                (character >= '0' && character <= '9') ||
+                (character >= 'A' && character <= 'Z') ||
+                (character >= 'a' && character <= 'z') ||
+                character == '_' ||
+                character == '-';
+        }
+
+        public bool IsAscii(int offset = 0)
+        {
+            return Buffer.Peek(offset) <= '\x7F';
+        }
+
+        public bool IsPrintable(int offset = 0)
+        {
+            var character = Buffer.Peek(offset);
+            return
+                character == '\x9' ||
+                character == '\xA' ||
+                character == '\xD' ||
+                (character >= '\x20' && character <= '\x7E') ||
+                character == '\x85' ||
+                (character >= '\xA0' && character <= '\xD7FF') ||
+                (character >= '\xE000' && character <= '\xFFFD');
+        }
+
+        public bool IsDigit(int offset = 0)
+        {
+            var character = Buffer.Peek(offset);
+            return character >= '0' && character <= '9';
+        }
+
+        public int AsDigit(int offset = 0)
+        {
+            return Buffer.Peek(offset) - '0';
+        }
+
+        public bool IsHex(int offset)
+        {
+            var character = Buffer.Peek(offset);
+            return
+                (character >= '0' && character <= '9') ||
+                (character >= 'A' && character <= 'F') ||
+                (character >= 'a' && character <= 'f');
+        }
+
+        public int AsHex(int offset)
+        {
+            var character = Buffer.Peek(offset);
+
+            if (character <= '9')
+            {
+                return character - '0';
+            }
+            if (character <= 'F')
+            {
+                return character - 'A' + 10;
+            }
+            return character - 'a' + 10;
+        }
+
+        public bool IsSpace(int offset = 0)
+        {
+            return Check(' ', offset);
+        }
+
+        public bool IsZero(int offset = 0)
+        {
+            return Check('\0', offset);
+        }
+
+        public bool IsTab(int offset = 0)
+        {
+            return Check('\t', offset);
+        }
+
+        public bool IsWhite(int offset = 0)
+        {
+            return IsSpace(offset) || IsTab(offset);
+        }
+
+        public bool IsBreak(int offset = 0)
+        {
+            return Check("\r\n\x85\x2028\x2029", offset);
+        }
+
+        public bool IsCrLf(int offset = 0)
+        {
+            return Check('\r', offset) && Check('\n', offset + 1);
+        }
+
+        public bool IsBreakOrZero(int offset = 0)
+        {
+            return IsBreak(offset) || IsZero(offset);
+        }
+
+        public bool IsWhiteBreakOrZero(int offset = 0)
+        {
+            return IsWhite(offset) || IsBreakOrZero(offset);
+        }
+
+        public bool Check(char expected, int offset = 0)
+        {
+            return Buffer.Peek(offset) == expected;
+        }
+
+        public bool Check(string expectedCharacters, int offset = 0)
+        {
+            // Todo: using it this way doesn't break anything, it's not really wrong...
+            Debug.Assert(expectedCharacters.Length > 1, "Use Check(char, int) instead.");
+
+            var character = Buffer.Peek(offset);
+            return expectedCharacters.IndexOf(character) != -1;
+        }
+    }
+}