nl_tokens: Parse { %tag% }
pl_tokens: function ( context , text ) { var i = text . indexOf ( ' ' ) ; if ( i === - 1 ) { var name = text ; var body = '' ; } else { var name = text . slice ( 0 , i ) . replace ( / ^\s+|\s+$ / g , '' ) ; var body = text . slice ( i + 1 ) . trim ( ) ; } name = <mask> . toLowerCase ( ) ; if ( typeof ( context . tags [ name ] ) === 'function' ) { context . tags [ name ] ( context , name , body ) ; } else { context . astStack . push ( context . astNode ( OPCODE . UNKNOWN_TAG , name , body ) ) ; } }