python - 匹配键值对

Question

在下面的文本中，我想提取键及其值。我编写了以下正则表达式，但它与多行中的值不匹配。正则表达式:--(.*)=.*(?=(.|--|\n|\Z)*)

--some text here not to be matched
--key1=this is a
 multiline statement
 statement
--random text not to be matched
--key2=val2
--key3=val3
--random text here not to be matched

所以，匹配后输出应该是

--key1=this is a
 multiline statement
 statement
--key2=val2
--key3=val3

Answer 1

你可以试试这个:

import re
s = """
 --some text here not to be matched
 --key1=this is a
 multiline statement
 statement
 --random text not to be matched
 --key2=val2
 --key3=val3
 --random text here not to be matched
"""
new_data = re.findall('\-\-\w+\=[a-zA-Z\s\n]+', s)
for i in new_data:
  print(i)

输出:

--key1=this is a
multiline statement
statement
--key2=val
--key3=val