How to insert a space at the beginning of a line in a "for next" code loop (.NET regular expressions)

[PiotrMP006]

How to insert a space at the beginning of a line in a "for next" code loop (.NET regular expressions)

I am trying to add spaces at the beginning of lines matched with look arounds

Code: Select all

for
line of code
line of code
line of code
line of code
next

and this is the output I want to get

Code: Select all

for
  line of code
  line of code
  line of code
  line of code
next

Please help me with .NET regular expressions