nl_tokens: 编译
pl_tokens: function plugin ( options , callback ) { options = options || { } ; return function ( style ) { if ( options . resolveUrl !== false ) { style . define ( 'url' , stylus . resolver ( ) ) ; } style . use ( rider ( { implicit : options . implicit } ) ) ; style . on ( 'end' , postprocessor ( options , callback ) ) ; if ( options . husl ) { // define husl & huslp <mask> . define ( 'husl' , function ( H , S , L , A ) { var rgb = husl . _rgbPrepare ( husl . _conv . husl . rgb ( [ H . val , S . val , L . val ] ) ) ; var a = ( A !== undefined ? A . val : 1 ) ; return new stylus . nodes . RGBA ( rgb [ 0 ] , rgb [ 1 ] , rgb [ 2 ] , a ) ; } ) ; style . define ( 'huslp' , function ( H , S , L , A ) { var rgb = husl . _rgbPrepare ( husl . _conv . huslp . rgb ( [ H . val , S . val , L . val ] ) ) ; var a = ( A !== undefined ? A . val : 1 ) ; return new stylus . nodes . RGBA ( rgb [ 0 ] , rgb [ 1 ] , rgb [ 2 ] , a ) ; } ) ; } if ( options . use ) { style . use ( options . use ) ; } } ; }