line breaking in programlistings

Hello!
how can I break e.g tx_pteswepricecalculator_supplarea at the 
underscores? Are there any similiarities to LaTex?
In LaTeX it works like this:
tx_"-pteswepricecalculator_"-supplyarea

Best regards Lwam

-- 
Gruß Lwam Berhane

punkt.de GmbH               TYPO3-Internet-Dienstleistungen-Beratung
Kaiserallee 13a             Tel.: 0721 9109-0  Fax: -100
76133 Karlsruhe                 http://punkt.de/
AG Mannheim 108285          Gf: Jürgen Egeling