Sublime Regex to replace everything other than numbers

Question

I have sample data

| 1 |
| 2 |
| 3 |

I want to remove everything else except numbers, keeping line (\n) as usually.

Output:

1
2
3

I am bit new to Sublime and Regex. :)

Answer 1

Based on your sample data, you can use the following.

Find: ^\D+|\D+$
Replace:

This matches the beginning of the string, followed by any character of non-digits (1 or more times) OR any character of non-digits (1 or more times) preceded by the end of the string.

Live Demo