nl_tokens: In logic before 0 . 10 . 0 we use c_ and w_ to mark event of container and wrapper we need to keep that logic work until next major version .
pl_tokens: function getEventTargetByOldLogic ( oldName ) { var targetKeyReg = new RegExp ( '^(c|w)_' ) ; var matches = oldName . match ( targetKeyReg ) ; if ( matches ) { var _name = oldName . replace ( targetKeyReg , '' ) ; var _target = oldName . indexOf ( 'c' ) === 0 ? 'container' : 'wrapper' ; /* istanbul ignore else  */ if ( process . env . NODE_ENV !== 'production' ) { chimeeHelper . Log . warn ( 'We no longer support event names like ' + oldName + '. Please use ' + _name + ' and options like { target: \'' + _target + '\' } instead' ) ; } return { <mask> : _name , target : _target } ; } else if ( oldName === 'error' ) { return { name : 'error' , target : 'kernel' } ; } return false ; }