regular Expression patern to ignore between parentheses

[x6213]

I need help making a regex patern to split strings with
the delimiter as a backslash; and I need it to ignore any backslashes inside parentheses "(" & ")"

example
string = "red \ (blue) \ (green\blue)\ black"

split should be
0=red
1=(blue)
2=(green\blue)
3=black

also there is no uniformity to the spaces abound the slashes


thanks,
-x6213

 

[tsuji]

Roughly this pattern.
[tt] .pattern="[^\(\\\s][^\\]*|\([^\)]*\)"[/tt]