complete all comments

webmagic-core/src/main/java/us/codecraft/webmagic/selector/ReplaceSelector.java

@@ -6,7 +6,7 @@ import java.util.regex.Pattern;
 import java.util.regex.PatternSyntaxException;
 
 /**
- * Replace selector。<br>
+ * Replace selector.<br>
  *
  * @author code4crafter@gmail.com <br>
  * @since 0.1.0

webmagic-core/src/main/java/us/codecraft/webmagic/selector/XpathSelector.java

@@ -6,7 +6,7 @@ import java.util.ArrayList;
 import java.util.List;
 
 /**
- * XPath selector based on HtmlCleaner。<br>
+ * XPath selector based on HtmlCleaner.<br>
  *
  * @author code4crafter@gmail.com <br>
  * @since 0.1.0

webmagic-extension/src/main/java/us/codecraft/webmagic/MultiPageModel.java

@@ -5,7 +5,7 @@ import us.codecraft.webmagic.utils.Experimental;
 import java.util.Collection;
 
 /**
- * Extract an object of more than one pages, such as news and articles。<br>
+ * Extract an object of more than one pages, such as news and articles.<br>
  *
  * @author code4crafter@gmail.com <br>
  * @since 0.2.0

webmagic-extension/src/main/java/us/codecraft/webmagic/model/AfterExtractor.java

@@ -3,7 +3,7 @@ package us.codecraft.webmagic.model;
 import us.codecraft.webmagic.Page;
 
 /**
- * Interface to be implemented by page models that need to do something after fields are extracted。<br>
+ * Interface to be implemented by page models that need to do something after fields are extracted.<br>
  *
  * @author code4crafter@gmail.com <br>
  * @since 0.2.0

webmagic-extension/src/main/java/us/codecraft/webmagic/model/OOSpider.java

@@ -5,7 +5,7 @@ import us.codecraft.webmagic.Spider;
 import us.codecraft.webmagic.processor.PageProcessor;
 
 /**
- * The spider for page model extractor。<br>
+ * The spider for page model extractor.<br>
  * In webmagic, we call a POJO containing extract result as "page model". <br>
  * You can customize a crawler by write a page model with annotations. <br>
  * Such as:

webmagic-extension/src/main/java/us/codecraft/webmagic/model/annotation/ExtractBy.java

@@ -5,7 +5,7 @@ import java.lang.annotation.Retention;
 import java.lang.annotation.Target;
 
 /**
- * Define the extractor for field or class。<br>
+ * Define the extractor for field or class.<br>
  *
  * @author code4crafter@gmail.com <br>
  * @since 0.2.0

webmagic-extension/src/main/java/us/codecraft/webmagic/pipeline/JsonFilePageModelPipeline.java

@@ -14,7 +14,7 @@ import java.io.IOException;
 import java.io.PrintWriter;
 
 /**
- * Store results objects (page models) to files in JSON format。<br>
+ * Store results objects (page models) to files in JSON format.<br>
  * Use model.getKey() as file name if the model implements HasKey.<br>
  * Otherwise use SHA1 as file name.
  *

webmagic-extension/src/main/java/us/codecraft/webmagic/pipeline/JsonFilePipeline.java

@@ -13,7 +13,7 @@ import java.io.IOException;
 import java.io.PrintWriter;
 
 /**
- * Store results to files in JSON format。<br>
+ * Store results to files in JSON format.<br>
  *
  * @author code4crafter@gmail.com <br>
  * @since 0.2.0

webmagic-extension/src/main/java/us/codecraft/webmagic/scheduler/RedisScheduler.java

@@ -9,7 +9,7 @@ import us.codecraft.webmagic.Request;
 import us.codecraft.webmagic.Task;
 
 /**
- * Use Redis as url scheduler for distributed crawlers。<br>
+ * Use Redis as url scheduler for distributed crawlers.<br>
  *
  * @author code4crafter@gmail.com <br>
  * @since 0.2.0

webmagic-extension/src/main/java/us/codecraft/webmagic/utils/DoubleKeyMap.java

@@ -92,7 +92,6 @@ public class DoubleKeyMap<K1, K2, V> extends MultiKeyMapBase {
             return null;
         }
         V remove = get(key1).remove(key2);
-        // 如果上一级map为空，把它也回收掉
         if (get(key1).size() == 0) {
             remove(key1);
         }