code format

https://github.com/alibaba/p3c/issues/107

p3c-pmd/README.md

@@ -204,7 +204,7 @@ Positive example:
     // please refer to the pseudo-code as follows 
     boolean existed = (file.open(fileName, "w") != null) && (...) || (...);
     if (existed) {
-	    ...
+        //...
     }  
     ```
 
@@ -212,7 +212,7 @@ Positive example:
 
     ```java
     if ((file.open(fileName, "w") != null) && (...) || (...)) {
-	    ...
+       // ...
     }
     ```
 

p3c-pmd/src/main/java/com/alibaba/p3c/pmd/lang/java/rule/util/NodeUtils.java

@@ -41,6 +41,7 @@ public class NodeUtils {
 
     /**
      * TODO optimize
+     *
      * @param expression expression
      * @return true if wrapper type
      */

p3c-pmd/src/main/resources/rulesets/java/ali-constant.xml

@@ -42,7 +42,7 @@
         <![CDATA[ 
 Positive example:
     String KEY_PRE = "Id#taobao_1";  
-   if(key.equals(KEY_PRE)){ 
+    if (KEY_PRE.equals(key)) {
             //...
     }
       ]]>

p3c-pmd/src/main/resources/rulesets/java/ali-flowcontrol.xml

@@ -49,7 +49,7 @@
             <![CDATA[
 Negative example:
     if ((file.open(fileName, "w") != null) && (...) || (...)) {
-        ...
+        // ...
     }
 			]]>
         </example>
@@ -58,7 +58,7 @@ Negative example:
 Positive example:
     boolean existed = (file.open(fileName, "w") != null) && (...) || (...);
     if (existed) {
-        ...
+        //...
     }
 			]]>
         </example>

p3c-pmd/src/main/resources/rulesets/java/ali-oop.xml

@@ -34,7 +34,7 @@
     Integer a = 235;
     Integer b = 235;
     if (a.equals(b)) {
-        //相等
+        // code
     }
 			]]>
         </example>
@@ -112,7 +112,7 @@
 
         <example>
             <![CDATA[
-反例:
+Negative example:
     String result;
     for (String string : tagNameList) {
         result = result + string;
@@ -121,7 +121,7 @@
         </example>
         <example>
             <![CDATA[
-正例:
+Positive example:
     StringBuilder stringBuilder = new StringBuilder();
     for (String string : tagNameList) {
         stringBuilder.append(string);

p3c-pmd/src/main/resources/rulesets/java/ali-set.xml

@@ -104,7 +104,6 @@ Negative example:
       if (delCondition) {
           it.remove();
       }
-      
    }
          ]]>
       </example>