Question

我试图从包含以下数据的文本文件中获取两个字符串之间的数据：

X_0_Gui_Homescreen_FPS_List
commands 1 :SensorFps ( 30.000)
X_0_Gui_Homescreen_Homescreen
X_0_Gui_Homescreen_EI_Switchview
X_0_Gui_Homescreen_EI_Set
commands 2 :SetExIndex (12), SetExIndex (13), EiSwitchAssign (1, 13)
X_0_Gui_Homescreen_EI_Switchview
X_0_Gui_Homescreen_Homescreen
X_0_Gui_Menu_000_Menu_root
X_0_Gui_Menu_100_Menu_Recording
commands 3 :MediaCodec (4), SetSensorFormat (0)
X_0_Gui_Menu_110_Menu_Recording_Project
commands 4 :ProjectFps (0), SensorFps ( 23.976)
X_0_Gui_Menu_100_Menu_Recording
X_0_Gui_Menu_000_Menu_root
X_0_Gui_Menu_300_Menu_Outputs
X_0_Gui_Menu_310_Menu_Outputs_EVF_mon
commands 5 :ZoomPos (0)
X_0_Gui_Menu_312_Menu_Outputs_EVF_exptools
commands 6 :ExposureToolSel (0, 1), ExposureToolSel (1, 1), ZebraMode (0, 0), ZebraMode (1, 0)
X_0_Gui_Menu_310_Menu_Outputs_EVF_mon
X_0_Gui_Menu_317_Menu_Outputs_EVF_settings
X_0_Gui_Menu_310_Menu_Outputs_EVF_mon
X_0_Gui_Menu_311_Menu_Outputs_EVF_overlays
commands 7 :CenterMark (0, 1)

我希望获得如下输出：

Navigated pages 1:
                  X_0_Gui_Homescreen_FPS_List
Navigated pages 2:
                  X_0_Gui_Homescreen_Homescreen
                     X_0_Gui_Homescreen_EI_Switchview
                        X_0_Gui_Homescreen_EI_Set
Navigated pages 3:
                  X_0_Gui_Homescreen_EI_Switchview
                     X_0_Gui_Homescreen_Homescreen
                        X_0_Gui_Menu_000_Menu_root
                           X_0_Gui_Menu_100_Menu_Recording

依旧......（命令1之前的数据应进入Navigated pages 1，命令2和1之间的数据应进入Navigated pages 2等等）

到目前为止完成的代码：

def get_navigated_path(command_number):
    navigated_and_commands = open('navigated_and_commands','r')
    data = navigated_and_commands.read()
    block = ""
    for i in range(0,command_number):
        block = re.compile(ur'commands ' + str(i) + ' :' + '[\S ]+\s((?:(?![^\n]+commands ' + str(i+1) + ' :' + ').)*)', re.IGNORECASE | re.DOTALL)
    data_with_block=re.findall(block, data)
    for line in data_with_block:
        if "X_" in line:
            print "       > navigated pages: \n" + "                         " + line

使用

产生几乎所需的输出

       > navigated pages: 
                         X_0_Gui_Homescreen_Homescreen
X_0_Gui_Homescreen_EI_Switchview
X_0_Gui_Homescreen_EI_Set
commands 2 :SetExIndex (12), SetExIndex (13), EiSwitchAssign (1, 13)

我不需要行commands 2 :SetExIndex (12), SetExIndex (13), EiSwitchAssign (1, 13) 而且我希望它像这样组织

   > navigated pages: 
                     X_0_Gui_Homescreen_Homescreen
                        X_0_Gui_Homescreen_EI_Switchview
                           X_0_Gui_Homescreen_EI_Set

任何指导都会非常感激

Answer 1

我不会使用正则表达式...可能是一个简单的迭代可以适合这种情况：

def get_navigated_path(command_number):
    navigated_and_commands = open('navigated_and_commands','r')
    i = 0
    for line in navigated_and_commands.readlines():
        if line.startswith("commands %d"%command_number):
            break
        if line.startswith("commands"):
            i += 1
            print "Navigated pages %d"%i
            continue
        print line

在Python2.7中获取两个字符串之间的数据

1 个答案: