diff --git a/app/src/main/java/io/legado/app/ui/book/read/ReadBookActivity.kt b/app/src/main/java/io/legado/app/ui/book/read/ReadBookActivity.kt
index 0d62c791c..021338077 100644
--- a/app/src/main/java/io/legado/app/ui/book/read/ReadBookActivity.kt
+++ b/app/src/main/java/io/legado/app/ui/book/read/ReadBookActivity.kt
@@ -214,6 +214,10 @@ class ReadBookActivity : VMBaseActivity<ReadBookViewModel>(R.layout.activity_boo
             R.id.menu_book_info -> ReadBook.book?.let {
                 startActivity<BookInfoActivity>(Pair("bookUrl", it.bookUrl))
             }
+            R.id.menu_toc_regex -> TocRegexDialog.show(
+                supportFragmentManager,
+                ReadBook.book?.tocUrl
+            )
         }
         return super.onCompatOptionsItemSelected(item)
     }
diff --git a/app/src/main/java/io/legado/app/ui/book/read/config/TocRegexDialog.kt b/app/src/main/java/io/legado/app/ui/book/read/config/TocRegexDialog.kt
new file mode 100644
index 000000000..971cf998d
--- /dev/null
+++ b/app/src/main/java/io/legado/app/ui/book/read/config/TocRegexDialog.kt
@@ -0,0 +1,44 @@
+package io.legado.app.ui.book.read.config
+
+import android.os.Bundle
+import android.util.DisplayMetrics
+import android.view.LayoutInflater
+import android.view.View
+import android.view.ViewGroup
+import androidx.fragment.app.FragmentManager
+import io.legado.app.R
+import io.legado.app.base.BaseDialogFragment
+
+
+class TocRegexDialog : BaseDialogFragment() {
+
+    companion object {
+        fun show(fragmentManager: FragmentManager, tocRegex: String? = null) {
+            val dialog = TocRegexDialog()
+            val bundle = Bundle()
+            bundle.putString("tocRegex", tocRegex)
+            dialog.arguments = bundle
+            dialog.show(fragmentManager, "tocRegexDialog")
+        }
+    }
+
+    override fun onStart() {
+        super.onStart()
+        val dm = DisplayMetrics()
+        activity?.windowManager?.defaultDisplay?.getMetrics(dm)
+        dialog?.window?.setLayout((dm.widthPixels * 0.9).toInt(), (dm.heightPixels * 0.8).toInt())
+    }
+
+    override fun onCreateView(
+        inflater: LayoutInflater,
+        container: ViewGroup?,
+        savedInstanceState: Bundle?
+    ): View? {
+        return inflater.inflate(R.layout.dialog_toc_regex, container)
+    }
+
+    override fun onViewCreated(view: View, savedInstanceState: Bundle?) {
+        super.onViewCreated(view, savedInstanceState)
+
+    }
+}
\ No newline at end of file
diff --git a/app/src/main/java/io/legado/app/ui/book/read/page/ContentTextView.kt b/app/src/main/java/io/legado/app/ui/book/read/page/ContentTextView.kt
index c25fd0664..233922f21 100644
--- a/app/src/main/java/io/legado/app/ui/book/read/page/ContentTextView.kt
+++ b/app/src/main/java/io/legado/app/ui/book/read/page/ContentTextView.kt
@@ -130,6 +130,7 @@ class ContentTextView(context: Context, attrs: AttributeSet?) : View(context, at
             pageOffset = 0f
         }
 
+        val cHeight = if (textPage.height > 0) textPage.height else height
 
     }
 
diff --git a/app/src/main/res/layout/dialog_toc_regex.xml b/app/src/main/res/layout/dialog_toc_regex.xml
new file mode 100644
index 000000000..43d0c5d3b
--- /dev/null
+++ b/app/src/main/res/layout/dialog_toc_regex.xml
@@ -0,0 +1,49 @@
+<?xml version="1.0" encoding="utf-8"?>
+<LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"
+    xmlns:tools="http://schemas.android.com/tools"
+    android:orientation="vertical"
+    android:layout_width="match_parent"
+    android:layout_height="match_parent">
+
+    <androidx.appcompat.widget.Toolbar
+        android:id="@+id/tool_bar"
+        android:background="@color/background_menu"
+        android:layout_width="match_parent"
+        android:layout_height="wrap_content" />
+
+    <androidx.recyclerview.widget.RecyclerView
+        android:id="@+id/recycler_view"
+        android:background="@color/background_card"
+        android:layout_width="match_parent"
+        android:layout_height="0dp"
+        android:layout_weight="1" />
+
+    <LinearLayout
+        android:layout_width="match_parent"
+        android:layout_height="wrap_content">
+
+        <Space
+            android:layout_width="0dp"
+            android:layout_height="wrap_content"
+            android:layout_weight="1" />
+
+        <TextView
+            android:id="@+id/tv_cancel"
+            android:layout_width="wrap_content"
+            android:layout_height="wrap_content"
+            android:layout_marginRight="16dp"
+            android:padding="12dp"
+            android:text="@string/cancel"
+            tools:ignore="RtlHardcoded" />
+
+        <TextView
+            android:id="@+id/tv_ok"
+            android:layout_width="wrap_content"
+            android:layout_height="wrap_content"
+            android:layout_marginRight="16dp"
+            android:padding="12dp"
+            android:text="@string/ok"
+            tools:ignore="RtlHardcoded" />
+
+    </LinearLayout>
+</LinearLayout>
\ No newline at end of file