diff --git a/Cyjb.Markdown/ParseBlock/BlockParser.cs b/Cyjb.Markdown/ParseBlock/BlockParser.cs
index 7856aa0..7c40f67 100644
--- a/Cyjb.Markdown/ParseBlock/BlockParser.cs
+++ b/Cyjb.Markdown/ParseBlock/BlockParser.cs
@@ -130,7 +130,7 @@ public BlockParser(TextReader text, ParseOptions? options)
 	public Document Parse()
 	{
 		Token<BlockKind> token;
-		BlockText line = new(this, locator);
+		BlockText line = new(locator);
 		while (true)
 		{
 			// 清除行的旧数据。
@@ -254,7 +254,7 @@ private void ParseLine(BlockText line)
 			{
 				foreach (IBlockFactory factory in factories)
 				{
-					currentInlineProcessors.AddRange(factory.TryStart(line, processor));
+					currentInlineProcessors.AddRange(factory.TryStart(this, line, processor));
 					if (currentInlineProcessors.Count > 0)
 					{
 						break;
@@ -264,7 +264,7 @@ private void ParseLine(BlockText line)
 			// 尝试检查缩进代码块
 			if (currentInlineProcessors.Count == 0)
 			{
-				currentInlineProcessors.AddRange(IndentedCodeBlockProcessor.TryStart(line));
+				currentInlineProcessors.AddRange(IndentedCodeBlockProcessor.TryStart(this, line));
 			}
 			if (currentInlineProcessors.Count == 0)
 			{
diff --git a/Cyjb.Markdown/ParseBlock/BlockText.cs b/Cyjb.Markdown/ParseBlock/BlockText.cs
index 6cc42aa..a38d93f 100644
--- a/Cyjb.Markdown/ParseBlock/BlockText.cs
+++ b/Cyjb.Markdown/ParseBlock/BlockText.cs
@@ -5,7 +5,7 @@
 namespace Cyjb.Markdown.ParseBlock;
 
 /// <summary>
-/// 行的信息。
+/// 块的文本。
 /// </summary>
 internal sealed class BlockText
 {
@@ -23,10 +23,6 @@ internal sealed class BlockText
 	/// </summary>
 	private readonly LineLocator locator;
 	/// <summary>
-	/// 块解析器。
-	/// </summary>
-	private readonly BlockParser parser;
-	/// <summary>
 	/// 行的起始位置。
 	/// </summary>
 	private int start = -1;
@@ -66,11 +62,9 @@ internal sealed class BlockText
 	/// <summary>
 	/// 使用指定的行定位器初始化 <see cref="BlockText"/> 类的新实例。
 	/// </summary>
-	/// <param name="parser">块解析器。</param>
 	/// <param name="locator">行定位器。</param>
-	internal BlockText(BlockParser parser, LineLocator locator)
+	internal BlockText(LineLocator locator)
 	{
-		this.parser = parser;
 		this.locator = locator;
 	}
 
@@ -111,10 +105,6 @@ public int Indent
 	/// 获取行的结束位置。
 	/// </summary>
 	public int End => end;
-	/// <summary>
-	/// 获取解析的选项。
-	/// </summary>
-	public ParseOptions Options => parser.Options;
 
 	/// <summary>
 	/// 获取当前行的文本。
@@ -177,11 +167,6 @@ public MappedText Text
 		}
 	}
 
-	/// <summary>
-	/// 获取当前激活的节点处理器。
-	/// </summary>
-	public BlockProcessor ActivatedProcessor => parser.ActivatedProcessor;
-
 	/// <summary>
 	/// 获取行是否是空的。
 	/// </summary>
diff --git a/Cyjb.Markdown/ParseBlock/Processors/ATXHeadingProcessor.cs b/Cyjb.Markdown/ParseBlock/Processors/ATXHeadingProcessor.cs
index 839224f..0d4599e 100644
--- a/Cyjb.Markdown/ParseBlock/Processors/ATXHeadingProcessor.cs
+++ b/Cyjb.Markdown/ParseBlock/Processors/ATXHeadingProcessor.cs
@@ -88,10 +88,11 @@ private sealed class BlockFactory : IBlockFactory
 		/// <summary>
 		/// 尝试开始当前块的解析。
 		/// </summary>
+		/// <param name="parser">块级语法分析器。</param>
 		/// <param name="line">要检查的行。</param>
 		/// <param name="matchedProcessor">当前匹配到的块处理器。</param>
 		/// <returns>如果能够开始当前块的解析，则返回解析器序列。否则返回空序列。</returns>
-		public IEnumerable<BlockProcessor> TryStart(BlockText line, BlockProcessor matchedProcessor)
+		public IEnumerable<BlockProcessor> TryStart(BlockParser parser, BlockText line, BlockProcessor matchedProcessor)
 		{
 			if (line.IsCodeIndent)
 			{
diff --git a/Cyjb.Markdown/ParseBlock/Processors/BlockquoteProcessor.cs b/Cyjb.Markdown/ParseBlock/Processors/BlockquoteProcessor.cs
index e117e70..04acd9d 100644
--- a/Cyjb.Markdown/ParseBlock/Processors/BlockquoteProcessor.cs
+++ b/Cyjb.Markdown/ParseBlock/Processors/BlockquoteProcessor.cs
@@ -104,10 +104,11 @@ private sealed class BlockFactory : IBlockFactory
 		/// <summary>
 		/// 尝试开始当前块的解析。
 		/// </summary>
+		/// <param name="parser">块级语法分析器。</param>
 		/// <param name="line">要检查的行。</param>
 		/// <param name="matchedProcessor">当前匹配到的块处理器。</param>
 		/// <returns>如果能够开始当前块的解析，则返回解析器序列。否则返回空序列。</returns>
-		public IEnumerable<BlockProcessor> TryStart(BlockText line, BlockProcessor matchedProcessor)
+		public IEnumerable<BlockProcessor> TryStart(BlockParser parser, BlockText line, BlockProcessor matchedProcessor)
 		{
 			int start = line.Peek().Span.Start;
 			if (CheckQuoteStart(line))
diff --git a/Cyjb.Markdown/ParseBlock/Processors/CustomContainerProcessor.cs b/Cyjb.Markdown/ParseBlock/Processors/CustomContainerProcessor.cs
index 3accbb5..ff488b1 100644
--- a/Cyjb.Markdown/ParseBlock/Processors/CustomContainerProcessor.cs
+++ b/Cyjb.Markdown/ParseBlock/Processors/CustomContainerProcessor.cs
@@ -108,16 +108,17 @@ private sealed class BlockFactory : IBlockFactory
 		/// <summary>
 		/// 尝试开始当前块的解析。
 		/// </summary>
+		/// <param name="parser">块级语法分析器。</param>
 		/// <param name="line">要检查的行。</param>
 		/// <param name="matchedProcessor">当前匹配到的块处理器。</param>
 		/// <returns>如果能够开始当前块的解析，则返回解析器序列。否则返回空序列。</returns>
-		public IEnumerable<BlockProcessor> TryStart(BlockText line, BlockProcessor matchedProcessor)
+		public IEnumerable<BlockProcessor> TryStart(BlockParser parser, BlockText line, BlockProcessor matchedProcessor)
 		{
 			if (line.IsCodeIndent)
 			{
 				yield break;
 			}
-			MarkdownUtil.ParseFenceStart(line, out int start, out int _,
+			MarkdownUtil.ParseFenceStart(parser, line, out int start, out int _,
 				out char _, out int fenceLength, out string? info, out HtmlAttributeList? attrs);
 			yield return new CustomContainerProcessor(start, fenceLength, info, attrs);
 		}
diff --git a/Cyjb.Markdown/ParseBlock/Processors/FencedCodeBlockProcessor.cs b/Cyjb.Markdown/ParseBlock/Processors/FencedCodeBlockProcessor.cs
index 267a263..4ae4341 100644
--- a/Cyjb.Markdown/ParseBlock/Processors/FencedCodeBlockProcessor.cs
+++ b/Cyjb.Markdown/ParseBlock/Processors/FencedCodeBlockProcessor.cs
@@ -114,16 +114,17 @@ private sealed class BlockFactory : IBlockFactory
 		/// <summary>
 		/// 尝试开始当前块的解析。
 		/// </summary>
+		/// <param name="parser">块级语法分析器。</param>
 		/// <param name="line">要检查的行。</param>
 		/// <param name="matchedProcessor">当前匹配到的块处理器。</param>
 		/// <returns>如果能够开始当前块的解析，则返回解析器序列。否则返回空序列。</returns>
-		public IEnumerable<BlockProcessor> TryStart(BlockText line, BlockProcessor matchedProcessor)
+		public IEnumerable<BlockProcessor> TryStart(BlockParser parser, BlockText line, BlockProcessor matchedProcessor)
 		{
 			if (line.IsCodeIndent)
 			{
 				yield break;
 			}
-			MarkdownUtil.ParseFenceStart(line, out int start, out int indent,
+			MarkdownUtil.ParseFenceStart(parser, line, out int start, out int indent,
 				out char fenceChar, out int fenceLength, out string? info, out HtmlAttributeList? attrs);
 			yield return new FencedCodeBlockProcessor(start, fenceChar, fenceLength, indent, info, attrs);
 		}
diff --git a/Cyjb.Markdown/ParseBlock/Processors/FootnoteProcessor.cs b/Cyjb.Markdown/ParseBlock/Processors/FootnoteProcessor.cs
index 6997dba..070c1f6 100644
--- a/Cyjb.Markdown/ParseBlock/Processors/FootnoteProcessor.cs
+++ b/Cyjb.Markdown/ParseBlock/Processors/FootnoteProcessor.cs
@@ -105,10 +105,11 @@ private sealed class BlockFactory : IBlockFactory
 		/// <summary>
 		/// 尝试开始当前块的解析。
 		/// </summary>
+		/// <param name="parser">块级语法分析器。</param>
 		/// <param name="line">要检查的行。</param>
 		/// <param name="matchedProcessor">当前匹配到的块处理器。</param>
 		/// <returns>如果能够开始当前块的解析，则返回解析器序列。否则返回空序列。</returns>
-		public IEnumerable<BlockProcessor> TryStart(BlockText line, BlockProcessor matchedProcessor)
+		public IEnumerable<BlockProcessor> TryStart(BlockParser parser, BlockText line, BlockProcessor matchedProcessor)
 		{
 			if (line.IsCodeIndent)
 			{
diff --git a/Cyjb.Markdown/ParseBlock/Processors/HtmlBlockProcessor.cs b/Cyjb.Markdown/ParseBlock/Processors/HtmlBlockProcessor.cs
index 5ec0e36..e8c6b42 100644
--- a/Cyjb.Markdown/ParseBlock/Processors/HtmlBlockProcessor.cs
+++ b/Cyjb.Markdown/ParseBlock/Processors/HtmlBlockProcessor.cs
@@ -98,18 +98,19 @@ private sealed class BlockFactory : IBlockFactory
 		/// <summary>
 		/// 尝试开始当前块的解析。
 		/// </summary>
+		/// <param name="parser">块级语法分析器。</param>
 		/// <param name="line">要检查的行。</param>
 		/// <param name="matchedProcessor">当前匹配到的块处理器。</param>
 		/// <returns>如果能够开始当前块的解析，则返回解析器序列。否则返回空序列。</returns>
-		public IEnumerable<BlockProcessor> TryStart(BlockText line, BlockProcessor matchedProcessor)
+		public IEnumerable<BlockProcessor> TryStart(BlockParser parser, BlockText line, BlockProcessor matchedProcessor)
 		{
 			if (line.IsCodeIndent)
 			{
 				yield break;
 			}
 			HtmlInfo info = (HtmlInfo)line.Peek().Value!;
-			if (!info.CanInterruptParagraph && (line.ActivatedProcessor.Kind == MarkdownKind.Paragraph ||
-				line.ActivatedProcessor.CanLazyContinuation))
+			if (!info.CanInterruptParagraph && (parser.ActivatedProcessor.Kind == MarkdownKind.Paragraph ||
+				parser.ActivatedProcessor.CanLazyContinuation))
 			{
 				// 不中断段落。
 				yield break;
diff --git a/Cyjb.Markdown/ParseBlock/Processors/IBlockFactory.cs b/Cyjb.Markdown/ParseBlock/Processors/IBlockFactory.cs
index 9d4c18a..8841b2e 100644
--- a/Cyjb.Markdown/ParseBlock/Processors/IBlockFactory.cs
+++ b/Cyjb.Markdown/ParseBlock/Processors/IBlockFactory.cs
@@ -8,8 +8,9 @@ internal interface IBlockFactory
 	/// <summary>
 	/// 尝试开始当前块的解析。
 	/// </summary>
+	/// <param name="parser">块级语法分析器。</param>
 	/// <param name="line">要检查的行。</param>
 	/// <param name="matchedProcessor">当前匹配到的块处理器。</param>
 	/// <returns>如果能够开始当前块的解析，则返回解析器序列。否则返回空序列。</returns>
-	IEnumerable<BlockProcessor> TryStart(BlockText line, BlockProcessor matchedProcessor);
+	IEnumerable<BlockProcessor> TryStart(BlockParser parser, BlockText line, BlockProcessor matchedProcessor);
 }
diff --git a/Cyjb.Markdown/ParseBlock/Processors/IndentedCodeBlockProcessor.cs b/Cyjb.Markdown/ParseBlock/Processors/IndentedCodeBlockProcessor.cs
index 573a50e..f8a8d02 100644
--- a/Cyjb.Markdown/ParseBlock/Processors/IndentedCodeBlockProcessor.cs
+++ b/Cyjb.Markdown/ParseBlock/Processors/IndentedCodeBlockProcessor.cs
@@ -13,13 +13,14 @@ internal class IndentedCodeBlockProcessor : BlockProcessor
 	/// <summary>
 	/// 尝试开始新的缩进代码块处理器。
 	/// </summary>
+	/// <param name="parser">块级语法分析器。</param>
 	/// <param name="line">要检查的行。</param>
 	/// <returns>新的块处理器数组，若未能成功解析，则返回空数组。</returns>
-	public static IEnumerable<BlockProcessor> TryStart(BlockText line)
+	public static IEnumerable<BlockProcessor> TryStart(BlockParser parser, BlockText line)
 	{
 		// 缩进代码块不会中断段落。
 		if (line.IsCodeIndent && !line.IsBlank() &&
-			line.ActivatedProcessor.Kind != MarkdownKind.Paragraph)
+			parser.ActivatedProcessor.Kind != MarkdownKind.Paragraph)
 		{
 			// 代码块的起始位置包含缩进位置。
 			int start = line.Start;
diff --git a/Cyjb.Markdown/ParseBlock/Processors/ListItemProcessor.cs b/Cyjb.Markdown/ParseBlock/Processors/ListItemProcessor.cs
index da30ecd..c9851ed 100644
--- a/Cyjb.Markdown/ParseBlock/Processors/ListItemProcessor.cs
+++ b/Cyjb.Markdown/ParseBlock/Processors/ListItemProcessor.cs
@@ -75,7 +75,7 @@ public override BlockContinue TryContinue(BlockText line)
 	{
 		if (line.IsBlank())
 		{
-			if (item.Children.Count == 0 && line.ActivatedProcessor.Kind == MarkdownKind.ListItem)
+			if (item.Children.Count == 0 && parent.Parser.ActivatedProcessor.Kind == MarkdownKind.ListItem)
 			{
 				// 列表项最多可以包含一个起始空行，因此空列表项后的空行会闭合当前项。
 				return BlockContinue.None;
@@ -83,7 +83,7 @@ public override BlockContinue TryContinue(BlockText line)
 			else
 			{
 				// 记录已包含空行。
-				MarkdownKind kind = line.ActivatedProcessor.Kind;
+				MarkdownKind kind = parent.Parser.ActivatedProcessor.Kind;
 				hadBlankLine = kind == MarkdownKind.Paragraph || kind == MarkdownKind.ListItem;
 				line.SkipIndent();
 				return BlockContinue.Continue;
diff --git a/Cyjb.Markdown/ParseBlock/Processors/ListProcessor.cs b/Cyjb.Markdown/ParseBlock/Processors/ListProcessor.cs
index 75f1822..cdaf3e0 100644
--- a/Cyjb.Markdown/ParseBlock/Processors/ListProcessor.cs
+++ b/Cyjb.Markdown/ParseBlock/Processors/ListProcessor.cs
@@ -48,14 +48,21 @@ internal sealed class ListProcessor : BlockProcessor
 	/// <summary>
 	/// 使用列表的标记字符和节点初始化 <see cref="ListProcessor"/> 类的新实例。
 	/// </summary>
+	/// <param name="parser">块级语法分析器。</param>
 	/// <param name="marker">列表的标记字符。</param>
 	/// <param name="list">列表节点。</param>
-	private ListProcessor(char marker, List list) : base(MarkdownKind.List)
+	private ListProcessor(BlockParser parser, char marker, List list) : base(MarkdownKind.List)
 	{
+		Parser = parser;
 		this.marker = marker;
 		this.list = list;
 	}
 
+	/// <summary>
+	/// 获取关联到的块级语法分析器。
+	/// </summary>
+	public BlockParser Parser { get; }
+
 	/// <summary>
 	/// 获取是否是容器节点。
 	/// </summary>
@@ -172,10 +179,11 @@ private sealed class BlockFactory : IBlockFactory
 		/// <summary>
 		/// 尝试开始当前块的解析。
 		/// </summary>
+		/// <param name="parser">块级语法分析器。</param>
 		/// <param name="line">要检查的行。</param>
 		/// <param name="matchedProcessor">当前匹配到的块处理器。</param>
 		/// <returns>如果能够开始当前块的解析，则返回解析器序列。否则返回空序列。</returns>
-		public IEnumerable<BlockProcessor> TryStart(BlockText line, BlockProcessor matchedProcessor)
+		public IEnumerable<BlockProcessor> TryStart(BlockParser parser, BlockText line, BlockProcessor matchedProcessor)
 		{
 			if (line.IsCodeIndent)
 			{
@@ -227,12 +235,12 @@ public IEnumerable<BlockProcessor> TryStart(BlockText line, BlockProcessor match
 				{
 					Start = start
 				};
-				listProcessor = new ListProcessor(token.Text[^1], list);
+				listProcessor = new ListProcessor(parser, token.Text[^1], list);
 				yield return listProcessor;
 			}
 			ListItemProcessor itemProcessor = new(listProcessor, itemStart, contentIndent);
 			// 检查任务列表项。
-			if (line.Options.UseTaskListItem)
+			if (parser.Options.UseTaskListItem)
 			{
 				itemProcessor.Checked = CheckTaskListItem(line);
 			}
diff --git a/Cyjb.Markdown/ParseBlock/Processors/MathBlockProcessor.cs b/Cyjb.Markdown/ParseBlock/Processors/MathBlockProcessor.cs
index 87b1e02..4065114 100644
--- a/Cyjb.Markdown/ParseBlock/Processors/MathBlockProcessor.cs
+++ b/Cyjb.Markdown/ParseBlock/Processors/MathBlockProcessor.cs
@@ -107,16 +107,17 @@ private sealed class BlockFactory : IBlockFactory
 		/// <summary>
 		/// 尝试开始当前块的解析。
 		/// </summary>
+		/// <param name="parser">块级语法分析器。</param>
 		/// <param name="line">要检查的行。</param>
 		/// <param name="matchedProcessor">当前匹配到的块处理器。</param>
 		/// <returns>如果能够开始当前块的解析，则返回解析器序列。否则返回空序列。</returns>
-		public IEnumerable<BlockProcessor> TryStart(BlockText line, BlockProcessor matchedProcessor)
+		public IEnumerable<BlockProcessor> TryStart(BlockParser parser, BlockText line, BlockProcessor matchedProcessor)
 		{
 			if (line.IsCodeIndent)
 			{
 				yield break;
 			}
-			MarkdownUtil.ParseFenceStart(line, out int start, out int indent,
+			MarkdownUtil.ParseFenceStart(parser, line, out int start, out int indent,
 				out char _, out int fenceLength, out string? info, out HtmlAttributeList? attrs);
 			yield return new MathBlockProcessor(start, fenceLength, indent, info, attrs);
 		}
diff --git a/Cyjb.Markdown/ParseBlock/Processors/SetextHeadingProcessor.cs b/Cyjb.Markdown/ParseBlock/Processors/SetextHeadingProcessor.cs
index f5b6e94..047951f 100644
--- a/Cyjb.Markdown/ParseBlock/Processors/SetextHeadingProcessor.cs
+++ b/Cyjb.Markdown/ParseBlock/Processors/SetextHeadingProcessor.cs
@@ -91,10 +91,11 @@ private sealed class BlockFactory : IBlockFactory
 		/// <summary>
 		/// 尝试开始当前块的解析。
 		/// </summary>
+		/// <param name="parser">块级语法分析器。</param>
 		/// <param name="line">要检查的行。</param>
 		/// <param name="matchedProcessor">当前匹配到的块处理器。</param>
 		/// <returns>如果能够开始当前块的解析，则返回解析器序列。否则返回空序列。</returns>
-		public IEnumerable<BlockProcessor> TryStart(BlockText line, BlockProcessor matchedProcessor)
+		public IEnumerable<BlockProcessor> TryStart(BlockParser parser, BlockText line, BlockProcessor matchedProcessor)
 		{
 			// 要求 Setext 标签之前是段落，而且包含有效内容。
 			IList<MappedText>? lines;
@@ -110,7 +111,7 @@ public IEnumerable<BlockProcessor> TryStart(BlockText line, BlockProcessor match
 			lines[^1].TrimEnd();
 			HtmlAttributeList? attrs = null;
 			// 尝试解析属性。
-			if (line.Options.UseHeaderAttributes)
+			if (parser.Options.UseHeaderAttributes)
 			{
 				attrs = ParseAttributes(lines);
 				// 移除尾行后的空白。
diff --git a/Cyjb.Markdown/ParseBlock/Processors/TableProcessor.cs b/Cyjb.Markdown/ParseBlock/Processors/TableProcessor.cs
index 7907a1b..6e725f1 100644
--- a/Cyjb.Markdown/ParseBlock/Processors/TableProcessor.cs
+++ b/Cyjb.Markdown/ParseBlock/Processors/TableProcessor.cs
@@ -230,10 +230,11 @@ private sealed class BlockFactory : IBlockFactory
 		/// <summary>
 		/// 尝试开始当前块的解析。
 		/// </summary>
+		/// <param name="parser">块级语法分析器。</param>
 		/// <param name="line">要检查的行。</param>
 		/// <param name="matchedProcessor">当前匹配到的块处理器。</param>
 		/// <returns>如果能够开始当前块的解析，则返回解析器序列。否则返回空序列。</returns>
-		public IEnumerable<BlockProcessor> TryStart(BlockText line, BlockProcessor matchedProcessor)
+		public IEnumerable<BlockProcessor> TryStart(BlockParser parser, BlockText line, BlockProcessor matchedProcessor)
 		{
 			// 要求分割行之前是段落，而且包含且只包含一行。
 			IList<MappedText>? lines;
diff --git a/Cyjb.Markdown/ParseBlock/Processors/ThematicBreakProcessor.cs b/Cyjb.Markdown/ParseBlock/Processors/ThematicBreakProcessor.cs
index 5784d55..74418a7 100644
--- a/Cyjb.Markdown/ParseBlock/Processors/ThematicBreakProcessor.cs
+++ b/Cyjb.Markdown/ParseBlock/Processors/ThematicBreakProcessor.cs
@@ -56,10 +56,11 @@ private sealed class BlockFactory : IBlockFactory
 		/// <summary>
 		/// 尝试开始当前块的解析。
 		/// </summary>
+		/// <param name="parser">块级语法分析器。</param>
 		/// <param name="line">要检查的行。</param>
 		/// <param name="matchedProcessor">当前匹配到的块处理器。</param>
 		/// <returns>如果能够开始当前块的解析，则返回处理器序列。否则返回空序列。</returns>
-		public IEnumerable<BlockProcessor> TryStart(BlockText line, BlockProcessor matchedProcessor)
+		public IEnumerable<BlockProcessor> TryStart(BlockParser parser, BlockText line, BlockProcessor matchedProcessor)
 		{
 			if (line.IsCodeIndent)
 			{
diff --git a/Cyjb.Markdown/Utils/MarkdownUtil.Fence.cs b/Cyjb.Markdown/Utils/MarkdownUtil.Fence.cs
index daf0ae1..a0373cd 100644
--- a/Cyjb.Markdown/Utils/MarkdownUtil.Fence.cs
+++ b/Cyjb.Markdown/Utils/MarkdownUtil.Fence.cs
@@ -29,6 +29,7 @@ public static int GetFenceLength(ReadOnlySpan<char> text)
 	/// <summary>
 	/// 解析分隔符的起始。
 	/// </summary>
+	/// <param name="parser">块级语法分析器。</param>
 	/// <param name="line">要解析的行信息。</param>
 	/// <param name="start">分隔符的起始索引。</param>
 	/// <param name="indent">分隔符的缩进。</param>
@@ -36,7 +37,7 @@ public static int GetFenceLength(ReadOnlySpan<char> text)
 	/// <param name="fenceLength">分隔符的长度。</param>
 	/// <param name="info">分隔符的信息。</param>
 	/// <param name="attrs">分隔符的属性。</param>
-	public static void ParseFenceStart(BlockText line, out int start, out int indent,
+	public static void ParseFenceStart(BlockParser parser, BlockText line, out int start, out int indent,
 		out char fenceChar, out int fenceLength,
 		out string? info, out HtmlAttributeList? attrs)
 	{
@@ -59,7 +60,7 @@ public static void ParseFenceStart(BlockText line, out int start, out int indent
 				info = null;
 			}
 			attrs = token.Value as HtmlAttributeList;
-			attrs?.AddPrefix(line.Options.AttributesPrefix);
+			attrs?.AddPrefix(parser.Options.AttributesPrefix);
 		}
 		else
 		{