If I use :browse a module with GHC 6.12, it sometimes displays
garbage. Here is an example:

Prelude> :browse Data.IP
data AddrRange a
 = iproute-0.2.0:Data.IP.Range.AddrRange {addr :: a,
                                          mask :: a,
                                          mlen :: Int}
(snip)
data AddrRange a
 = iproute-0.2.0:Data.IP.Range.AddrRange {..., mask :: a, ...}
data AddrRange a
 = iproute-0.2.0:Data.IP.Range.AddrRange {..., mlen :: Int}


"..." is the garbage. Due to this, I cannot parse the output of
:browse. This is not displayed with GHC 6.10.

Q1) What is the intention of "..."?

I believe it's related to the module export list.

> module Test (y) where
> data R = R { x :: Char, y :: Int, z :: Float }

*Test> :browse
data Test.R = Test.R {..., y :: Int, ...}

Q2) How to prevent it so that I can obtain output which I can parse?

Export all the labels, perhaps?

Regards,
Sean