优化

app/src/main/java/io/legado/app/help/ContentProcessor.kt

@@ -31,13 +31,12 @@ class ContentProcessor(private val bookName: String, private val bookOrigin: Str
         var content1 = content
         if (book.getUseReplaceRule()) {
             replaceRules.forEach { item ->
-                item.pattern.let {
-                    if (it.isNotEmpty()) {
+                if (item.pattern.isNotEmpty()) {
                     try {
                         content1 = if (item.isRegex) {
-                                content1.replace(it.toRegex(), item.replacement)
+                            content1.replace(item.pattern.toRegex(), item.replacement)
                         } else {
-                                content1.replace(it, item.replacement)
+                            content1.replace(item.pattern, item.replacement)
                         }
                     } catch (e: Exception) {
                         withContext(Dispatchers.Main) {
@@ -47,7 +46,6 @@ class ContentProcessor(private val bookName: String, private val bookOrigin: Str
                 }
             }
         }
-        }
         if (isRead) {
             if (book.getReSegment()) {
                 content1 = ContentHelp.reSegment(content1, title)