Question

Based on this question Regex \d+(?:-\d+)+ will match this 10-3-1 and 5-0.

Example:

This is 10-3-1 my string

After performing the matching and reversing, I want it to be like this:

This is 1-3-10 my string

Notice that 10-3-1 should become 1-3-10 and not normal string reverse which would result in 1-3-01.

Answer 1

A basic algorithm would be:

1. Extract the match from the string. "10-3-1"
2. Split the match into a segments by the “-” character.
3. You now have a list of elements. ["10","3","1"]
4. Reverse the list. ["1","3","10"]
5. Join the elements of the array with the “-” character. "1-3-10"
6. Replace the match with newly joined string.