Fix Demo Crash in Syntax Highlighting with long code

Examples/Demo/Demo/SyntaxHighlighter/TextOutputFormat.swift

@@ -16,7 +16,7 @@ struct TextOutputFormat: OutputFormat {
 extension TextOutputFormat {
   struct Builder: OutputBuilder {
     private let theme: Theme
-    private var accumulatedText: [Text]
+    private var accumulatedText: [AttributedString]
 
     fileprivate init(theme: Theme) {
       self.theme = theme
@@ -25,21 +25,24 @@ extension TextOutputFormat {
 
     mutating func addToken(_ token: String, ofType type: TokenType) {
       let color = self.theme.tokenColors[type] ?? self.theme.plainTextColor
-      self.accumulatedText.append(Text(token).foregroundColor(.init(uiColor: color)))
+      var aster = AttributedString(token)
+      aster.foregroundColor = .init(uiColor: color)
+      self.accumulatedText.append(aster)
     }
 
     mutating func addPlainText(_ text: String) {
-      self.accumulatedText.append(
-        Text(text).foregroundColor(.init(uiColor: self.theme.plainTextColor))
-      )
+      var aster = AttributedString(text)
+      aster.foregroundColor = .init(uiColor: self.theme.plainTextColor)
+      self.accumulatedText.append(aster)
     }
 
     mutating func addWhitespace(_ whitespace: String) {
-      self.accumulatedText.append(Text(whitespace))
+      self.accumulatedText.append(AttributedString(whitespace))
     }
 
     func build() -> Text {
-      self.accumulatedText.reduce(Text(""), +)
+      let text = self.accumulatedText.reduce(AttributedString(""), +)
+      return Text(text)
     }
   }
 }

Package.swift

@@ -15,17 +15,23 @@ let package = Package(
     .library(
       name: "MarkdownUI",
       targets: ["MarkdownUI"]
-    )
+    ),
+    .library(name: "YYText", targets: ["YYText"])
   ],
   dependencies: [
     .package(url: "https://github.com/gonzalezreal/NetworkImage", from: "6.0.0"),
     .package(url: "https://github.com/pointfreeco/swift-snapshot-testing", from: "1.10.0"),
     .package(url: "https://github.com/swiftlang/swift-cmark", from: "0.4.0"),
   ],
   targets: [
+    .target(
+        name: "YYText",
+        path: "Sources/YYText"
+    ),
     .target(
       name: "MarkdownUI",
       dependencies: [
+        "YYText",
         .product(name: "cmark-gfm", package: "swift-cmark"),
         .product(name: "cmark-gfm-extensions", package: "swift-cmark"),
         .product(name: "NetworkImage", package: "NetworkImage"),

Sources/MarkdownUI/Event/MDEventManager.swift

@@ -0,0 +1,28 @@
+//
+//  MDEventManager.swift
+//  MarkdownTest
+//
+//  Created by Ericmao on 2025/1/4.
+//
+
+import Foundation
+import UIKit
+
+class MDEventManager {
+    static let shared = MDEventManager()
+
+    private init() {
+
+    }
+
+    //点击 Markdown 中的数字索引
+    @objc func onIndexClicked(_ tapgr: UITapGestureRecognizer) {
+        if let label = tapgr.view as? UILabel {
+            let text = label.text
+            let frame = label.frame
+
+            print("On Link Index clicked:\(String(describing: text)) \(frame)")
+        }
+    }
+
+}

Sources/MarkdownUI/Extensibility/LinkURLDecode.swift

@@ -0,0 +1,29 @@
+//
+//  File.swift
+//  swift-markdown-ui
+//
+//  Created by aterzhang on 2024/12/17.
+//
+
+import Foundation
+
+public func parseMarkdownLink(_ inputString: String?) -> (String, String)? {
+    guard let markdown = inputString else {
+        return nil
+    }
+    let pattern = "\\[(.*?)\\]\\((.*?)\\)"
+    let regex = try? NSRegularExpression(pattern: pattern, options: [])
+
+    if let match = regex?.firstMatch(in: markdown, options: [], range: NSRange(location: 0, length: markdown.utf16.count)) {
+        let textRange = Range(match.range(at: 1), in: markdown)
+        let urlRange = Range(match.range(at: 2), in: markdown)
+
+        if let textRange = textRange, let urlRange = urlRange {
+            let textContent = String(markdown[textRange])
+            let urlContent = String(markdown[urlRange])
+            return (textContent, urlContent)
+        }
+    }
+
+    return nil
+}

Sources/MarkdownUI/Renderer/AttributedStringInlineRenderer.swift

@@ -1,20 +1,24 @@
 import Foundation
 
+let LINK_SEPERATOR = "|||"
+
 extension InlineNode {
   func renderAttributedString(
     baseURL: URL?,
     textStyles: InlineTextStyles,
     softBreakMode: SoftBreak.Mode,
-    attributes: AttributeContainer
+    attributes: AttributeContainer,
+    textReplacer: ((String, String) -> String)?
   ) -> AttributedString {
     var renderer = AttributedStringInlineRenderer(
       baseURL: baseURL,
       textStyles: textStyles,
       softBreakMode: softBreakMode,
-      attributes: attributes
+      attributes: attributes,
+      textReplacer: textReplacer
     )
     renderer.render(self)
-    return renderer.result.resolvingFonts()
+    return renderer.result
   }
 }
 
@@ -26,17 +30,20 @@ private struct AttributedStringInlineRenderer {
   private let softBreakMode: SoftBreak.Mode
   private var attributes: AttributeContainer
   private var shouldSkipNextWhitespace = false
+  private var textReplacer: ((String, String) -> String)?
 
   init(
     baseURL: URL?,
     textStyles: InlineTextStyles,
     softBreakMode: SoftBreak.Mode,
-    attributes: AttributeContainer
+    attributes: AttributeContainer,
+    textReplacer: ((String, String) -> String)?
   ) {
     self.baseURL = baseURL
     self.textStyles = textStyles
     self.softBreakMode = softBreakMode
     self.attributes = attributes
+    self.textReplacer = textReplacer
   }
 
   mutating func render(_ inline: InlineNode) {
@@ -66,6 +73,13 @@ private struct AttributedStringInlineRenderer {
 
   private mutating func renderText(_ text: String) {
     var text = text
+    if let urlStr = self.attributes.link?.absoluteString {
+      self.attributes.link = URL(string: "[\(text)](\(urlStr))", relativeTo: self.baseURL)
+
+      if let replacer = self.textReplacer {
+        text = replacer(text, urlStr)
+      }
+    }
 
     if self.shouldSkipNextWhitespace {
       self.shouldSkipNextWhitespace = false