Question

我正在编写一个python脚本，并希望匹配一个大文件中的所有Group对象名称，原始数据的示例如下所示：

IT_PC (Group) -Host: 192.168.103.144 -Host: 192.168.103.145 -Network: 192.168.103.0 255.255.255.0 HR_PC (Group) -Host: 192.168.65.145 -Host: 192.168.62.146 -Host: 192.168.62.154
Finance_PC (Group) -Finance_PC_192.168.41.125
Testing_PC (Group) -Host: 192.168.129.1 -Host: 192.168.129.97 -Host: 192.168.59.81 -Host: 192.168.59.82

我要求的输出应该是这样的：

IT_PC (Group)
HR_PC (Group)
Finance_PC (Group)
Testing_PC (Group)

我正在尝试使用下面的常规快递来匹配我所需的结果，但它只返回第一个['IT_PC（组）']。对我有任何建议，谢谢。

source = "IT_PC (Group) -Host: 192.168.103.144 -Host: 192.168.103.145 -Network: 192.168.103.0 255.255.255.0 HR_PC (Group) -Host: 192.168.65.145 -Host: 192.168.62.146 -Host: 192.168.62.154 Finance_PC (Group) -Finance_PC_192.168.41.125 Testing_PC (Group) -Host: 192.168.129.1 -Host: 192.168.129.97 -Host: 192.168.59.81 -Host: 192.168.59.82"

data = ".*? (?= \(group\))"
a = re.findall(data, source)
print a

Answer 1

我使用的\w+(?= \(Group\))表达式会匹配一个或多个字母数字字符（A-Za-z0-9_），后跟空格和(Group)：

>>> re.findall(r"\w+(?= \(Group\))", source)
['IT_PC', 'HR_PC', 'Finance_PC', 'Testing_PC']

或者，您可以更加具体地了解组对象名称格式，并在下划线后需要一个或多个大写字母：

>>> re.findall(r"\w+_[A-Z]+(?= \(Group\))", source)
['IT_PC', 'HR_PC', 'Finance_PC', 'Testing_PC']

或者，如果您还需要Group：

>>> re.findall(r"\w+ \(Group\)", source)
['IT_PC (Group)', 'HR_PC (Group)', 'Finance_PC (Group)', 'Testing_PC (Group)']
>>> re.findall(r"\w+_[A-Z]+ \(Group\)", source)
['IT_PC (Group)', 'HR_PC (Group)', 'Finance_PC (Group)', 'Testing_PC (Group)']

正则表达式在字符串之前返回单词 - python

1 个答案: