Update HtmlFormatter.kt

简化网页格式化程序，并修复格式化图片只格式了第一张的问题。

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

@@ -2,55 +2,49 @@ package io.legado.app.utils
 
 import io.legado.app.model.analyzeRule.AnalyzeUrl
 import java.net.URL
-import java.util.regex.Pattern
+import io.legado.app.constant.AppPattern
 
 object HtmlFormatter {
     private val wrapHtmlRegex = "</?(?:div|p|br|hr|h\\d|article|dd|dl)[^>]*>".toRegex()
     private val notImgHtmlRegex = "</?(?!img)[a-zA-Z]+(?=[ >])[^<>]*>".toRegex()
     private val otherHtmlRegex = "</?[a-zA-Z]+(?=[ >])[^<>]*>".toRegex()
-    private val imgPattern = Pattern.compile("<img [^>]*src=.*?\"(.*?(?:,\\{.*\\})?)\".*?>")
 
-    fun format(html: String?): String {
+    fun format(html: String?, otherRegex: Regex = otherHtmlRegex): String {
         html ?: return ""
         return html.replace(wrapHtmlRegex, "\n")
-            .replace(otherHtmlRegex, "")
+            .replace(otherRegex, "")
-            .replace("\\s*\\n+\\s*".toRegex(), "\n　　")
             .replace("^[\\n\\s]+".toRegex(), "　　")
             .replace("[\\n\\s]+$".toRegex(), "")
-    }
-
-    fun formatKeepImg(html: String?): String {
-        html ?: return ""
-        return html.replace(wrapHtmlRegex, "\n")
-            .replace(notImgHtmlRegex, "")
             .replace("\\s*\\n+\\s*".toRegex(), "\n　　")
-            .replace("^[\\n\\s]+".toRegex(), "　　")
-            .replace("[\\n\\s]+$".toRegex(), "")
     }
 
+    fun formatKeepImg(html: String?) = format(html,notImgHtmlRegex)
+
     fun formatKeepImg(html: String?, redirectUrl: URL?): String {
         html ?: return ""
+        var formatHtml = formatKeepImg(html)
         val sb = StringBuffer()
-        val matcher = imgPattern.matcher(html)
         var appendPos = 0
-        while (matcher.find()) {
+        while (appendPos < formatHtml.length) {
+            val matcher = AppPattern.imgPattern.matcher(formatHtml)
+            if(matcher.find()) {
                 val urlArray = matcher.group(1)!!.split(AnalyzeUrl.splitUrlRegex)
                 var url = NetworkUtils.getAbsoluteURL(redirectUrl, urlArray[0])
                 if (urlArray.size > 1) {
                     url = "$url,${urlArray[1]}"
                 }
-            sb.append(html.substring(appendPos, matcher.start()))
+                sb.append(formatHtml.substring(appendPos, matcher.start()))
                 sb.append("<img src=\"$url\" >")
                 appendPos = matcher.end()
+                formatHtml = formatHtml.substring(appendPos, formatHtml.length)
+                appendPos = 0
+            } else {
+                sb.append(formatHtml)
+                appendPos = formatHtml.length
             }
-        if (appendPos < html.length) {
-            sb.append(html.substring(appendPos, html.length))
         }
-        return sb.replace(wrapHtmlRegex, "\n")
+
-            .replace(notImgHtmlRegex, "")
+        return sb.toString()
-            .replace("\\s*\\n+\\s*".toRegex(), "\n　　")
-            .replace("^[\\n\\s]+".toRegex(), "　　")
-            .replace("[\\n\\s]+$".toRegex(), "")
     }
 
 }