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t=this.source.indexOf(`
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r=De(t.start),o=t.key,l=t.sep;l.push(this.sourceToken),delete t.key,delete t.sep,this.stack.push({type:"block-map",offset:this.offset,indent:this.indent,items:[{start:r,key:o,sep:l}]})}else i.length>0?t.sep=t.sep.concat(i,this.sourceToken):t.sep.push(this.sourceToken);else if(H(t.start,"newline"))Object.assign(t,{key:null,sep:[this.sourceToken]});else{let r=De(t.start);this.stack.push({type:"block-map",offset:this.offset,indent:this.indent,items:[{start:r,key:null,sep:[this.sourceToken]}]})}else t.sep?t.value||n?e.items.push({start:i,key:null,sep:[this.sourceToken]}):H(t.sep,"map-value-ind")?this.stack.push({type:"block-map",offset:this.offset,indent:this.indent,items:[{start:[],key:null,sep:[this.sourceToken]}]}):t.sep.push(this.sourceToken):Object.assign(t,{key:null,sep:[this.sourceToken]});this.onKeyLine=!0;return;case"alias":case"scalar":case"single-quoted-scalar":case"double-quoted-scalar":{let r=this.flowScalar(this.type);n||t.value?(e.items.push({start:i,key:r,sep:[]}),this.onKeyLine=!0):t.sep?this.stack.push(r):(Object.assign(t,{key:r,sep:[]}),this.onKeyLine=!0);return}default:{let r=this.startBlockValue(e);if(r){n&&r.type!=="block-seq"&&H(t.start,"explicit-key-ind")&&e.items.push({start:i}),this.stack.push(r);return}}}}yield*this.pop(),yield*this.step()}*blockSequence(e){let t=e.items[e.items.length-1];switch(this.type){case"newline":if(t.value){let n="end"in t.value?t.value.end:void 0;(Array.isArray(n)?n[n.length-1]:void 0)?.type==="comment"?n?.push(this.sourceToken):e.items.push({start:[this.sourceToken]})}else t.start.push(this.sourceToken);return;case"space":case"comment":if(t.value)e.items.push({start:[this.sourceToken]});else{if(this.atIndentedComment(t.start,e.indent)){let 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