How to replace string by regex?

@hal.littel 

To replace a string using regular expressions, you can use the replace method in various programming languages. Here is an example in Python:

1
2
3
4
5

import re

string = "Hello, World! Hello, Universe!"
new_string = re.sub(r'Hello', 'Hi', string)
print(new_string)

This code will replace all occurrences of the word "Hello" with "Hi" in the original string. The re.sub() function takes three arguments: the regex pattern to search for, the replacement string, and the original string.

You can modify the regex pattern to search for more complex patterns or use capturing groups to replace specific parts of the string. Make sure to check the documentation of the programming language you are using for more details on how to use regular expressions for string replacement.