优化链接分割规则，避免 ,{c参数} 的字符串中也存在 ,{ ，导致规则切错

修复<str0,str2,...{{js}}>这种页数列表写法中，js部分内含 < 或 > 就会切割错误的问题

优化格式化图片标签操作和匹配图片标签操作，加快图片处理速度

app/src/main/java/io/legado/app/data/entities/BookChapter.kt

@@ -61,7 +61,14 @@ data class BookChapter(
         return false
     }
 
-    fun getAbsoluteURL() = url.replace("^\\s*([^,\\s]+)\\s*".toRegex()){ NetworkUtils.getAbsoluteURL(baseUrl,it.groupValues[1]) }
+    fun getAbsoluteURL():String{
+        val pos = url.indexOf(',')
+        return if(pos == -1) NetworkUtils.getAbsoluteURL(baseUrl,url)
+        else NetworkUtils.getAbsoluteURL(
+                baseUrl,
+                url.substring(0, pos)
+            ) + url.substring(pos)
+    }
 
     fun getFileName(): String = String.format("%05d-%s.nb", index, MD5Utils.md5Encode16(title))
 

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

@@ -32,15 +32,48 @@ object HtmlFormatter {
 
         val matcher = imgPattern.matcher(keepImgHtml)
         var appendPos = 0
-        while (matcher.find()) {
+
+        if(matcher.find()){
+            var url = matcher.group(1)!!
+            var pos = url.indexOf(',')
             sb.append(keepImgHtml.substring(appendPos, matcher.start()))
-            sb.append("<img src=\"${
-                matcher.group(1)!!.replace("^\\s*([^,\\s]+)\\s*".toRegex()){
-                    NetworkUtils.getAbsoluteURL(redirectUrl,it.groupValues[1])
-                }
-            }\">")
+            sb.append(
+                "<img src=\"${
+                    if (pos == -1) url else NetworkUtils.getAbsoluteURL(
+                        redirectUrl,
+                        url.substring(0, pos)
+                    ) + url.substring(pos)
+                }\">"
+            )
             appendPos = matcher.end()
+            if(pos == -1) {
+                while (matcher.find()) {
+                    sb.append(keepImgHtml.substring(appendPos, matcher.start()))
+                    sb.append( "<img src=\"${
+                        NetworkUtils.getAbsoluteURL(redirectUrl,matcher.group(1)!!)
+                    }\">" )
+                    appendPos = matcher.end()
+                }
+            }else{
+                while (matcher.find()) {
+                    url = matcher.group(1)!!
+                    pos = url.indexOf(',')
+                    sb.append(keepImgHtml.substring(appendPos, matcher.start()))
+                    sb.append(
+                        "<img src=\"${
+                            NetworkUtils.getAbsoluteURL(
+                                redirectUrl,
+                                url.substring(0, pos)
+                            )
+                        }${
+                            url.substring(pos)
+                        }\">"
+                    )
+                    appendPos = matcher.end()
+                }
+            }
         }
+
         if (appendPos < keepImgHtml.length) {
             sb.append(keepImgHtml.substring(appendPos, keepImgHtml.length))
         }