什么是使用正则表达式分隔数据的最佳方式

Question

我想写一个程序，它会过滤掉跨环境访问，例如。 prod不应该访问Dev/QA对象，反之亦然。

到目前为止，我正在使用IN条件来检查和筛选出这些数据，我如何使用正则表达式或其他有效的方式来实现这一点？请建议

示例代码：

lst_role_objects = [] 
for row in exct_role_obj: 
if (('_PROD' in row[0] or 'PROD_' in row[0] or '_PROD_' in row[0]) and ('PREPROD' not in row[0])): 

    if ('_DEV' in (row[1].split('.')[0]) or 'DEV_' in (row[1].split('.')[0]) or '_DEV_' in (row[1].split('.')[0]) or '_QA' in (row[1].split('.')[0]) or 'QA_' in (row[1].split('.')[0]) or '_QA_' in (row[1].split('.')[0])   or '_PREPROD' in (row[1].split('.')[0]) or 'PREPROD_' in (row[1].split('.')[0]) or '_PREPROD_' in (row[1].split('.')[0])): 


     print(row[0]) 
     print(row[1].split('.')[0]) 
     lst_role_objects.append((row[0],row[1])) 


for row in exct_role_obj: 
if ('_PREPROD' in row[0] or 'PREPROD_' in row[0] or '_PREPROD_' in row[0]) or 'QA' in row[0]: 

    if (('PREPROD' not in (row[1].split('.')[0])) and ('QA' not in (row[1].split('.')[0]))): 
     print(row[0]) 
     print(row[1].split('.')[0]) 
     lst_role_objects.append((row[0],row[1])) 

for row in exct_role_obj: 
if ('_DEV' in row[0] or 'DEV_' in row[0] or '_DEV_' in row[0] or    'DEV' in row[0]) : 

    if ('DEV' not in (row[1].split('.')[0])): 
     print(row[0]) 
     print(row[1].split('.')[0]) 
     lst_role_objects.append((row[0],row[1])) 




Sample data : 
ROLE , OBJECTS 
PROD_A_TEST , DA_DEV.PROD.SLS 
PROD_A_TEST , DA_PROD.PROD.SLS 
PROD_A_TEST , DA_PREPROD.PREPROD.SLS 
PREPROD_A_TEST , DA_PREPROD.PREPROD.SLS 
TEST_PREPROD_A , DA_PREPROD.PREPROD.SLS 
TEST_PREPROD_A , DA_PROD.PREPROD.SLS 

Answer 1

这应该为你在这里提到的所有情况。没有正确测试。

lst_role_objects = [] 
for row in exct_role_obj: 
    if re.match("^([A-Z_]*_)?PROD(_[A-Z_]*)?$", row[0]) and re.match("^([A-Z_]*_)?(DEV|QA|PREPROD)(_[A-Z_]*)?\..*", row[1]): 
     print row[0], row[1].split('.')[0] 
     lst_role_objects.append((row[0], row[1])) 

for row in exct_role_obj: 
    if re.match("^([A-Z_]*_)?(PREPROD|QA)(_[A-Z_]*)?$", row[0]) and re.match("^((?!([A-Z_]*)(PREPROD|QA))([A-Z_]*)\..*)$", row[1]): 
     print row[0], row[1].split('.')[0] 
     lst_role_objects.append((row[0], row[1])) 

for row in exct_role_obj: 
    if re.match("^([A-Z_]*_)?DEV(_[A-Z_]*)?$", row[0]) and re.match("^(?!.*(DEV)).*$", row[1]): 
     print row[0], row[1].split('.')[0] 
     lst_role_objects.append((row[0], row[1])) 

自己试一试，以包括缺少的测试用例。