从文件中的匹配字符串读取行..python

Question

我有一个从F5配置文件打印池名称的脚本。我想在多个F5配置文件上运行此脚本。.我希望能够从^ pool | ^}中读取（pool OR}使行开始）。 ..目前，我告诉脚本从第2348行读取时，我得到了所需的输出。

我想消除xrange（2348）中i的使用，因为其他文件F5配置文件较小。

它的工作方式是，如果我让脚本开始从^ pool OR ^}逐行读取文件
当前脚本：

import re
seenrule = 'false'

File = open("/home/t816874/F5conf/unzip/config/bigip.conf", "r")
for i in xrange(2348):
        File.next()

for line in File:
        if re.match("(^pool p)", line, re.IGNORECASE):
                a = line.lstrip("pool p")
                ONE = a[:-2]
                print "Pool Name:", ONE

        if re.findall(r'(?:[\d]{1,3})\.(?:[\d]{1,3})\.(?:[\d]{1,3})\.(?:[\d] {1,3})', line):
               if seenrule == 'false':
                       x = line.lstrip("members ")
                       print x

if re.match("(^rule )", line):
        seenrule = 'true'

-------------------------------------------------- -------------

我的尝试：

import re
seenrule = 'false'
startline = 'false'

File = open("/home/t816874/F5conf/unzip/config/bigip.conf", "r")
if re.match("(^pool|^})", line):
      startline = 'true'

for line in File:
        if re.match("(^pool p)", line, re.IGNORECASE):
                a = line.lstrip("pool p")
                ONE = a[:-2]
                print "Pool Name:", ONE

        if re.findall(r'(?:[\d]{1,3})\.(?:[\d]{1,3})\.(?:[\d]{1,3})\.(?:[\d] {1,3})', line):
               if seenrule == 'false':
                       x = line.lstrip("members ")
                       print x

if re.match("(^rule )", line):
        seenrule = 'true'

感谢您的帮助！

-----------

conf文件类似于：

node 172.0.0.0 {
   screen ab2583-1.2
}
node 172.0.0.1 {
   screen ab2583-1.3
}
node 172.0.0.3 {
   screen ab2584-1.2
}
pool pWWW_abcd_HTTPS {
   lb method member predictive
   monitor all mWWW_staging.telecom_TCP
   members {
      0.0.0.0:8421 {}
      0.0.0.1:18431 {
         session user disabled
      }
      0.0.0.2:8421 {}
      0.0.0.3:18431 {
         session user disabled
      }
   }
}
pool pWWW_vcm2APP.defg_HTTP {
   lb method member predictive
   monitor all mWWW_vcm2APP.defg_TCP
   members 0.0.0.5:27110 {}
}
node..
....
.

Answer 1

目前尚不清楚您想要什么，但我会尽力猜测。 您正在尝试获取每个池的成员。 您没有提及任何关于seenrule -因此我将其删除。

如果您不想解析此数据结构，并且如果顶层块始终且排他地以'}\\n'行结尾，则可以执行以下操作：

import re
f = open('/home/t816874/F5conf/unzip/config/bigip.conf', 'r')

# Iterate over lines.
for line in f:
    # If pool block is met.
    if line.startswith('pool p'):
        pname = line.split()[1]
        pmembers = []
        # Iterate over block.
        # Block is expected to be terminated by line '}\n'.
        for pline in iter(lambda: next(f), '}\n'):
            members = re.findall(r'\d{1,3}(?:\.\d{1,3}){3}:\d{1,5}', pline)
            pmembers.extend(members)

        print(pname, pmembers)

f.close()

输出：

pWWW_abcd_HTTPS ['0.0.0.0:8421', '0.0.0.1:18431', '0.0.0.2:8421', '0.0.0.3:18431']
pWWW_vcm2APP.defg_HTTP ['0.0.0.5:27110']