UTIL SafeName
UTIL_SafeName is a UTIL provided in the source code for scanning player names, and replacing characters that VGUI won't display properly.
Usage
//-----------------------------------------------------------------------------
// Purpose: Scans player names and replaces characters that vgui won't
// display properly
// Input : *oldName - player name to be fixed up
// Output : *char - static buffer with the safe name
//-----------------------------------------------------------------------------
const char * UTIL_SafeName( const char *oldName )
Examples
UTIL_SafeName( gr->GetPlayerName(iPlayerIndex) )