优化

app/src/main/java/io/legado/app/utils/HtmlFormatter.kt

@@ -23,7 +23,7 @@ object HtmlFormatter {
     fun formatKeepImg(html: String?, redirectUrl: URL?): String {
         html ?: return ""
         val sb = StringBuffer()
-        val matcher = AppPattern.imgPattern.matcher(html)
+        val matcher = AppPattern.imgPattern.matcher(formatKeepImg(html))
         var appendPos = 0
         while (matcher.find()) {
             val urlArray = matcher.group(1)!!.split(AnalyzeUrl.splitUrlRegex)
@@ -38,7 +38,7 @@ object HtmlFormatter {
         if (appendPos < html.length) {
             sb.append(html.substring(appendPos, html.length))
         }
-        return formatKeepImg(sb.toString())
+        return sb.toString()
     }
 
 }