Replace ALL occurrences of a match in a string

[#1]

Let's say I have a very long string, which essentially are just field names, comma separated. 

My problem, when trying to break it into separate fields, is that some names have comma inside them, like "{0,0}" or "{45,-45}" or "{90,90}".

In order to separate this long string into fields I need to replace that comma with something.

This is a small piece of that string: "Normal_0_{0,0}, Normal_90_{45,-45}" - so I need to replace only that comma that inside curly brackets.

So I wrote this:

matches = Regex (longLine, "(\{\d{1,2})(,)(-?\d{1,2}\})", "\1|\3");

It's supposed to replace all the commas inside the string. But in reality it only replaces the first comma in the string.

Why? And how can I replace ALL the matches?

Side question: In this code 

Word(1, "Normal_0_{0,0}, Normal_90_{45,-45}" ,  ", ")

it would split the string by EITHER "," OR " ". How can I split by COMBINATION of characters, specifically split by ", " - comma followed by space?

[#2 · Accepted solution]

As usual, few minutes after posting I bumped into the answer in the documentation.

All I needed was GLOBALREPLACE:

matches = Regex (longLine, "(\{\d{1,2})(,)(-?\d{1,2}\})", "\1|\3", GLOBALREPLACE);

[#3]

For your side question: You cannot easily split with many characters by using Word(s). You might be able to use Regex Match OR you could first replace all ", " (Substitute, Regex) with some special character and then split on that using Word(s).