Question

输出不是预期的。我希望在“系统”目录下打印有关“系统”的所有差异，并在“接口”目录下打印与“接口”相关的所有差异。即使我有声明要抓住它，“ {...}”也不会打印。代码如下：

import re
template_list = ['system','interfaces']
directory = '/templates/juniper/junos/vfirewall/'
diff = """[edit system name-server]
    8.8.8.8 { ... }
+   4.4.4.4;
[edit interfaces ge-0/0/0 unit 0 family inet]
+       address 10.20.30.10/24;
-       address 10.50.30.10/24;
[edit interfaces]
+   ge-0/0/1 {
+       unit 2 {
+           family inet {
+               address 10.50.80.10/24;
+           }
+       }
+   }""".splitlines()

for template in template_list:
 print("{}{}".format(directory,template))
 for line in diff:
   if(re.match('\[edit\s({})'.format(template),line)):
     print('{}'.format(line))
   elif(re.match('\{ ... \}',line)):
     print('{}'.format(line))
   elif(re.match('^\-',line)):
     print('{}'.format(line))
   elif(re.match('^\+',line)):
     print('{}'.format(line))
   elif(re.match('\[edit\s\w.+',line)):
     break

输出给出：

/templates/juniper/junos/vfirewall/system
[edit system name-server]
+   4.4.4.4;
/templates/juniper/junos/vfirewall/interfaces
>>>

预期输出：

/templates/juniper/junos/vfirewall/system
[edit system name-server]
    8.8.8.8 { ... }
+   4.4.4.4;
/templates/juniper/junos/vfirewall/interfaces
[edit interfaces ge-0/0/0 unit 0 family inet]
+       address 10.20.30.10/24;
-       address 10.50.30.10/24;
[edit interfaces]
+   ge-0/0/1 {
+       unit 2 {
+           family inet {
+               address 10.50.80.10/24;
+           }
+       }
+   }

Answer 1

两个主要问题：

您应该对正则表达式使用原始字符串，以便将转义序列从字面上传递给regexp引擎，而不是作为字符串转义进行处理。
您需要使用re.search()而不是re.match()，因为后者仅在字符串的开头匹配（等效于以^开头的RE）。 / p>

次要问题：.中的...应该转义为字面匹配，而-则不必转义。

工作版本：

import re
template_list = ['system','interfaces']
directory = '/templates/juniper/junos/vfirewall/'
diff = """[edit system name-server]
    8.8.8.8 { ... }
+   4.4.4.4;
[edit interfaces ge-0/0/0 unit 0 family inet]
+       address 10.20.30.10/24;
-       address 10.50.30.10/24;
[edit interfaces]
+   ge-0/0/1 {
+       unit 2 {
+           family inet {
+               address 10.50.80.10/24;
+           }
+       }
+   }""".splitlines()

for template in template_list:
 print("{}{}".format(directory,template))
 for line in diff:
   if(re.search(r'\[edit\s({})'.format(template),line)):
     print('{}'.format(line))
   elif(re.search(r'\{ \.\.\. \}',line)):
     print('{}'.format(line))
   elif(re.search(r'^-',line)):
     print('{}'.format(line))
   elif(re.search(r'^\+',line)):
     print('{}'.format(line))
   elif(re.search(r'\[edit\s\w.+',line)):
     break

不希望使用正则表达式输出打印列表

1 个答案: