How do regular expressions replace multiple matches?

Question

Sample string: "Print Computer information" (Except double quotes)

I want to add "a" after "print" and "operation" before "information".

So the result string is: "Print a Computer operation information"

My regular expression pattern is: @"(Print)(?:.+)(?=information)"

My replacement string is: “$1 a operation”.

But the result is not correct... How to replace it?

Answer 1

I think that you can use two replaces, or:

string sample = "Print Computer information";
string result = Regex.Replace( sample, @"(Print )(.*)( information)", "$1a $2 operation$3" );