nl_tokens: Executes javascript passed by -- eval
pl_tokens: function executeJS ( script ) { if ( ! script ) return ; try { var ret = vm . runInThisContext ( <mask> , '[eval]' ) ; if ( 'undefined' != typeof ret ) { console . log ( ret ) ; } } catch ( err ) { if ( ! ( err instanceof Error ) ) { err = new Error ( err ) ; } console . log ( err . stack . split ( '\n' ) [ 0 ] ) ; process . exit ( 1 ) ; } }