nl_tokens: Parses a Block Statement .
pl_tokens: function ( state , scope , secondaryScope ) { if ( ! validators . isBlockStart ( <mask> ) ) return state . error ( constants . unexpectedToken ) ; state . next ( ) ; //Skip block start. utils . statementsInBlock ( state , scope , secondaryScope ) ; if ( ! validators . isBlockEnd ( state ) ) return state . error ( constants . unexpectedToken ) ; state . next ( ) ; //Skip block end. }