improve json parser

src/main/java/com/alibaba/fastjson/parser/CharTypes.java

@@ -88,22 +88,14 @@ public final class CharTypes {
         specicalFlags_singleQuotes['\u000B'] = 4; // 11
         specicalFlags_singleQuotes['\f'] = 1; // 12
         specicalFlags_singleQuotes['\r'] = 1; // 13
-        specicalFlags_singleQuotes['\u000E'] = 4; // 14
-        specicalFlags_singleQuotes['\u000F'] = 4; // 15 
-        specicalFlags_singleQuotes['\u0010'] = 4; // 16
-        specicalFlags_singleQuotes['\u0011'] = 4; // 17
-        specicalFlags_singleQuotes['\u0012'] = 4; // 18
-        specicalFlags_singleQuotes['\u0013'] = 4; // 19
-        specicalFlags_singleQuotes['\u0014'] = 4; // 20
-        specicalFlags_singleQuotes['\u0015'] = 4; // 21
-        specicalFlags_singleQuotes['\u0016'] = 4; // 22
-        specicalFlags_singleQuotes['\u0017'] = 4; // 23
-        specicalFlags_singleQuotes['\u0018'] = 4; // 24
-        specicalFlags_singleQuotes['\u0019'] = 4; // 25
-        specicalFlags_singleQuotes['\u0020'] = 4; // 26
         specicalFlags_singleQuotes['\\'] = 1;
         specicalFlags_singleQuotes['\''] = 1;
         
+        for (int i = 0x0E; i <= 0x1F; ++i) {
+            specicalFlags_doubleQuotes[i] = 4;
+            specicalFlags_singleQuotes[i] = 4;
+        }
+        
         for (int i = 0x7F; i <= 0xA0; ++i) {
             specicalFlags_doubleQuotes[i] = 4;
             specicalFlags_singleQuotes[i] = 4;

src/main/java/com/alibaba/fastjson/parser/deserializer/JavaBeanDeserializer.java

@@ -177,7 +177,7 @@ public class JavaBeanDeserializer implements ObjectDeserializer {
         }
 
         ParseContext context = parser.getContext();
-        if (object != null) {
+        if (object != null && context != null) {
             context = context.getParentContext();
         }
         ParseContext childContext = null;

src/main/java/com/alibaba/fastjson/serializer/SerializeWriter.java

@@ -1403,7 +1403,7 @@ public final class SerializeWriter extends Writer {
             return false;
         }
 
-        if (ch <= 13 || ch == '\\' || ch == '"') {
+        if (ch <= 0x1F || ch == '\\' || ch == '"') {
             return true;
         }
 

src/test/java/com/alibaba/json/bvt/bug/Bug_for_zhongyin.java

@@ -0,0 +1,84 @@
+package com.alibaba.json.bvt.bug;
+
+import java.io.UnsupportedEncodingException;
+import java.util.Collections;
+import java.util.HashMap;
+import java.util.Map;
+
+import junit.framework.TestCase;
+
+import org.junit.Assert;
+
+import com.alibaba.fastjson.JSON;
+import com.alibaba.fastjson.JSONObject;
+
+public class Bug_for_zhongyin extends TestCase {
+
+    public void test_entity() throws Exception {
+        for (char c = '\u0000'; c < '\u0020'; c++) {
+            String s = String.valueOf(c) + "entity";
+            String jsons = JSON.toJSONString(new VO(s));
+            System.out.println(jsons);
+            VO v = JSON.parseObject(jsons, VO.class);
+            Assert.assertEquals(s, v.getName());
+        }
+    }
+
+    public void test_map() throws Exception {
+        for (char c = '\u0000'; c < '\u0020'; c++) {
+            String s = String.valueOf(c) + "map";
+            String jsons = JSON.toJSONString(Collections.singletonMap("value", s));
+            System.out.println(jsons);
+
+            JSONObject o = JSON.parseObject(jsons);
+            Assert.assertEquals(s, o.getString("value"));
+        }
+    }
+    
+    public  void test_0() throws Exception {
+        String hex = "41544D20E58F96E78EB0EFBC8DE993B6E88194E5908CE59F8E1A20E4BD9BE5B1B1E5B882E7A685E59F8EE58CBAE7A596E5BA99E8B7AF201A33331A20E58FB7E799BEE88AB1E5B9BFE59CBAE9A696E5B182201A";
+        String result = getHexStr(hex);
+        
+        Map <String , Object>map = new HashMap<String, Object>();
+        map.put("aaa" , result);
+        String stringV = JSON.toJSONString(map);
+        System.out.println(stringV);
+        JSONObject o = JSON.parseObject(stringV);
+        System.out.println(o.getString("aaa"));
+        
+    }
+    
+    private String getHexStr(String hex) throws UnsupportedEncodingException {
+        byte []bytes = new byte[hex.length() / 2];
+        for(int i = 0 ; i < bytes.length ; i++) {
+            String v = hex.substring(i * 2 , i * 2 + 2);
+            bytes[i] = (byte)Integer.parseInt(v , 16);
+        }
+        String str = new String(bytes , "UTF-8");
+        System.out.println(str);
+        return str;
+    }
+
+    public static class VO {
+
+        private String name;
+
+        public VO(){
+
+        }
+
+        public VO(String name){
+            this.name = name;
+        }
+
+        public String getName() {
+            return name;
+        }
+
+        public void setName(String name) {
+            this.name = name;
+        }
+
+    }
+
+}