ygDebugFlags derived from none

Revision: 11/01/01 Dave Pape
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constructor ygDebugFlags

destructor ~ygDebugFlags

method addFlag

method checkFlags

0.1
 Note: ONLY set the flag if checkDebugEnv returns true;
          don't change the flag on false, because it may have been
          previously set to true through a parent class name 

method checkFlag

method setFlag

method matchRegexp

method checkDebugEnv