bug fix

python/tools/garble/activity_garble.py

@@ -28,14 +28,14 @@ class ActivityGarble:
             for (src, dst) in self.activity_mapping.items():
                 #避免命名重复，确保要替换的部分前后没有合法的命名字符，如果有则还原
                 file_content = file_content.replace(src, dst)
-                before = re.findall(r'[0-9a-zA-Z_]'+dst,file_content)
-                if before != None:
+                before = re.findall(r'[0-9a-zA-Z]'+dst,file_content)
+                if before is not None:
                     for name in before:
                         char = name.split(dst)[0]
                         file_content = file_content.replace(name, char + src)
 
-                after = re.findall(r''+ "%s[0-9a-zA-Z_]"% dst,file_content)
-                if after != None:
+                after = re.findall(r''+ "%s[0-9a-zA-Z]"% dst,file_content)
+                if after is not None:
                     for name in after:
                         char = name.split(dst)[1]
                         file_content = file_content.replace(name,  src + char)