change sheet name

@@ -17,7 +17,7 @@ class BSWorkbook(Workbook):
     def __init__(self, interest_keyword, salary_keyword, loan_keyword, wechat_keyword, *args, **kwargs):
         super().__init__(*args, **kwargs)
         locale.setlocale(locale.LC_NUMERIC, 'en_US.UTF-8')
-        self.meta_sheet_title = '关键信息提取和展示'
+        self.meta_sheet_title = 'Key info'
         self.blank_row = (None,)
         self.code_header = ('页数', '电子回单验证码')
         self.date_header = ('打印时间', '起始日期', '终止日期', '流水区间结果')
@@ -45,7 +45,7 @@ class BSWorkbook(Workbook):
         if not isinstance(card, str):
             return consts.ERROR_CARD
         try:
-            new_card = card.translate(consts.SHEET_TITLE_TRANS).strip()[-6:]
+            new_card = card.translate(consts.SHEET_TITLE_TRANS).strip()[-4:]
             if len(new_card) == 0:
                 new_card = consts.ERROR_CARD
         except Exception as e:
@@ -327,9 +327,11 @@ class BSWorkbook(Workbook):
         )
         return metadata_rows
 
-    def build_meta_sheet(self, card, confidence, code, print_time, start_date, end_date):
+    def build_meta_sheet(self, role_name, card, confidence, code, print_time, start_date, end_date):
         metadata_rows = self.build_metadata_rows(confidence, code, print_time, start_date, end_date)
-        ms = self.create_sheet('{0}({1})'.format(self.meta_sheet_title, card))
+        if not isinstance(role_name, str):
+            role_name = consts.UNKNOWN_ROLE
+        ms = self.create_sheet('{0}{1}({2})'.format(self.meta_sheet_title, role_name, card))
         for row in metadata_rows:
             ms.append(row)
         return ms
@@ -614,7 +616,8 @@ class BSWorkbook(Workbook):
 
             # 2.元信息提取表
             confidence = self.get_confidence(max_find_count)
-            ms = self.build_meta_sheet(new_card,
+            ms = self.build_meta_sheet(summary.get('role', consts.UNKNOWN_ROLE),
+                                       new_card,
                                        confidence,
                                        summary.get('code'),
                                        summary.get('print_time'),