How may I apply double quotes around every value of csv file using TextMate?

Here are the important portions of the regex. Hopefully I got it right when I converted to textmate format:

Search - ([^,]*)(,|$)

Replace - "$1"$2

Search explanation: Find every character that is not a comma, up until we reach a comma, or the end of the line. Capture the match for string to be quoted in one variable, and capture the comma/end-of-line match in another variable.

Replace explanation: The original string, quoted, and the comma or end-of-line that follows it.

You could start with:

find: ,
replace: "," 

then add a " at the start and at the end?