0&&(r={});var n=Fv(this);for(var a in r)n[a]=r[a];return n},e.appendToPropertyAndEscape=function(r,n,a){this.raws||(this.raws={});var s=this[r],o=this.raws[r];this[r]=s+n,o||a!==n?this.raws[r]=(o||s)+a:delete this.raws[r]},e.setPropertyAndEscape=function(r,n,a){this.raws||(this.raws={}),this[r]=n,this.raws[r]=a},e.setPropertyWithoutEscape=function(r,n){this[r]=n,this.raws&&delete this.raws[r]},e.isAtPosition=function(r,n){if(this.source&&this.source.start&&this.source.end)return!(this.source.star...