通过正则表达式捕获组，然后将捕获组拆分为单独的列表项

Question

我将行读入到列表中：

l =  ['W –-Transportation',
     'W23.F5-International_waterways                      W25.2-Airlines',
     'W23.F8-Rivers                                       W25.4-Bus_lines',
     'W23.H-Pipelines                                       W25.6-Railroads',
     'W23.H2-Oil_pipelines                                W25.8-Shipping_lines',
     'W23.H4-Natural_gas_pipelines                        W27-Transportation_safety',
     'W23.H6-Water_pipelines                              W27.2-Traffic_safety',
     'W23.K-Transportation_system_design                    W29-Navigation',
     'W23.M-Transportation_system_construction              W32-Transportation_research',
     'W23.M2-Transportation_facility_construction         W32.2-Transportation_surveys',
     'W23.M4-Transportation_system_maintenance            W34-Transportation_education',
     'W23.M4.2-Road_maintenance                        W36-Transportation_policy',
     'W23.M6-Transportation_system_repair                 W38-Transportation_planning',
     'W23.M6.2-Vehicle_repair                          W40-Transportation_aspects',
     'W25-Transportation_industry']

现在，对于每一行，我希望捕获两个组，例如- W23.F5-International_waterways和W25.2-Airlines，并将它们分成两个列表条目。

我的预期结果是：

l =  ['W –-Transportation','W23.F5-International_waterways','W25.2-Airlines','W23.F8-Rivers','W25.4-Bus_lines','W23.H-Pipelines','W25.6-Railroads','W23.H2-Oil_pipelines','W25.8-Shipping_lines', .....,'W25-Transportation_industry']

捕获组的正则表达式应该是([a-z])\s*?([A-Z])，但是我应该如何将捕获组拆分为新的列表条目？

Answer 1

也许，在" "上进行简单的拆分可能会在这里正常工作：

import re

l =  ['W –-Transportation',
     'W23.F5-International_waterways                      W25.2-Airlines',
     'W23.F8-Rivers                                       W25.4-Bus_lines',
     'W23.H-Pipelines                                       W25.6-Railroads',
     'W23.H2-Oil_pipelines                                W25.8-Shipping_lines',
     'W23.H4-Natural_gas_pipelines                        W27-Transportation_safety',
     'W23.H6-Water_pipelines                              W27.2-Traffic_safety',
     'W23.K-Transportation_system_design                    W29-Navigation',
     'W23.M-Transportation_system_construction              W32-Transportation_research',
     'W23.M2-Transportation_facility_construction         W32.2-Transportation_surveys',
     'W23.M4-Transportation_system_maintenance            W34-Transportation_education',
     'W23.M4.2-Road_maintenance                        W36-Transportation_policy',
     'W23.M6-Transportation_system_repair                 W38-Transportation_planning',
     'W23.M6.2-Vehicle_repair                          W40-Transportation_aspects',
     'W25-Transportation_industry']

k = []
for i in l:
    new_string = i.split("  ")
    for j in new_string:
        if j != '':
            k.append(j.strip())


print(k)

输出

['W –-Transportation', 'W23.F5-International_waterways', 'W25.2-Airlines', 'W23.F8-Rivers', 'W25.4-Bus_lines', 'W23.H-Pipelines', 'W25.6-Railroads', 'W23.H2-Oil_pipelines', 'W25.8-Shipping_lines', 'W23.H4-Natural_gas_pipelines', 'W27-Transportation_safety', 'W23.H6-Water_pipelines', 'W27.2-Traffic_safety', 'W23.K-Transportation_system_design', 'W29-Navigation', 'W23.M-Transportation_system_construction', 'W32-Transportation_research', 'W23.M2-Transportation_facility_construction', 'W32.2-Transportation_surveys', 'W23.M4-Transportation_system_maintenance', 'W34-Transportation_education', 'W23.M4.2-Road_maintenance', 'W36-Transportation_policy', 'W23.M6-Transportation_system_repair', 'W38-Transportation_planning', 'W23.M6.2-Vehicle_repair', 'W40-Transportation_aspects', 'W25-Transportation_industry']