[TYPO3-dev] Informations about the best way to replace a function in a class

[Pierre Rouwens]

Hi there,

I need to replace a function in tslib_BEfunc. What is the best way to 
achieve it ? i know using xclass is bad ? but what can i do else ?
I'm starting an extension where i can configure stuff to work with the 
workspace, and i'm trying to understand the whole system.

Thanks a lot for any information

Pierre