从给定的字符串中找到 substring 旁边的 substring

Question

How can I find the substring next to a mentioned substring from given string.

For example:

string = "unable to increase the space of the index orcl_index. The space for the index orcl_index should be increased by 250mb"

indicator substring here is "index", and required output will be "orcl_index".

I tried the following the code, but not sure how to proceed further

my_string = "unable to increase the space of the index orcl_index. The space for the index orcl_index should be increased by 250mb"

print(my_string.split("index",1)[1])

a= my_string.split("index",1)[1]

b= a.strip()
print(b)

Output:" orcl_index should be increased by 250mb"

Required output: "orcl_index"

Answer 1

If you're open to using regular expressions, there is a straightforward way:

import re

inp = "unable to increase the space of the index orcl_index. The space for the index orcl_index should be increased by 250mb"
val = re.search(r'\bindex (\w+)', inp).group(1)
print(val)  # orcl_index

The regex pattern used here is \bindex (\w+) , which says to match:

• \bindex the word "index"
• single space
• (\w+) match the next word AND capture in first capture group