$reg1 = /\=/i;
$reg2 = /\S+\=\S+/i;            
$reg3 = /extern.+\b$ur\b\s*/i;
$reg4 = /;$/i;
$reg5 = /.+\b$ur\b\s*/i;

The value of $ur is "rba_Reset_Request".


##</code><code>##

extern void rba_Reset_Request(rba_Reset_Grp_ten dResetGrp_en,
                              rba_Reset_Id_ten dResetIdentifier_en,
                              uint32 dUserDefined_u32);