Cabal config breaks on Windows with username "{"

[guest]

I can't do anything because my username is "{". Either the parsing is being done incorrectly or the config file was generated incorrectly.

I named myself this deliberately to see if any software would break; kind of sad that the one thing that broke so far is cabal, thought you would know better... My config file is attached.

C:\Program Files (x86)\Console2>cabal --version cabal-install version 0.10.2 using version 1.10.1.0 of the Cabal library

C:\Program Files (x86)\Console2>cabal update Warning: Error parsing config file C:\Users\{\AppData?\Roaming\cabal\config:46: opening brace '{'has no matching closing brace '}' Warning: Using default configuration. Downloading the latest package list from hackage.haskell.org

[elga]

*  virgin mobile

[edouard]

A l'image du RIB bancaire, le numero RIO est un identifiant unique attribue a une ligne et a un contrat client permettant d'identifier son demande de portabilite vers un autre operateur.  simyo