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/home/yanggyein/yanggyein/yang_ai/node_modules/less/dist/less.min.js

/**
 * Less - Leaner CSS v3.12.2
 * http://lesscss.org
 * 
 * Copyright (c) 2009-2020, Alexis Sellier <self@cloudhead.net>
 * Licensed under the Apache-2.0 License.
 *
 * @license Apache-2.0
 */
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t=e.debugInfo.fileName;return/^[a-z]+:\/\//i.test(t)||(t="file://"+t),"@media -sass-debug-info{filename{font-family:"+t.replace(/([.:\/\\])/g,(function(e){return"\\"==e&&(e="/"),"\\"+e}))+"}line{font-family:\\00003"+e.debugInfo.lineNumber+"}}\n"};var U=function(e){function t(t,n,i,r){var o=e.call(this)||this;return o.value=t,o.isLineComment=n,o._index=i,o._fileInfo=r,o.allowRoot=!0,o}return o(t,e),t.prototype.genCSS=function(e,t){this.debugInfo&&t.add(B(e,this),this.fileInfo(),this.getIndex()),t.add(this.value)},t.prototype.isSilent=function(e){var t=e.compress&&"!"!==this.value[2];return this.isLineComment||t},t}(h);U.prototype.type="Comment";var q={},j=function(e,t,n){if(e)for(var i=0;i<n.length;i++)e.hasOwnProperty(n[i])&&(t[n[i]]=e[n[i]])},T=["paths","rewriteUrls","rootpath","strictImports","insecure","dumpLineNumbers","compress","syncImport","chunkInput","mime","useFileCache","processImports","pluginManager"];q.Parse=function(e){j(e,this,T),"string"==typeof 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t,n=e.split("/").reverse();for(e=[];0!==n.length;)switch(t=n.pop()){case".":break;case"..":0===e.length||".."===e[e.length-1]?e.push(t):e.pop();break;default:e.push(t)}return e.join("/")},e}();var J=function e(t){return{_data:{},add:function(e,t){e=e.toLowerCase(),this._data.hasOwnProperty(e),this._data[e]=t},addMultiple:function(e){var t=this;Object.keys(e).forEach((function(n){t.add(n,e[n])}))},get:function(e){return this._data[e]||t&&t.get(e)},getLocalFunctions:function(){return this._data},inherit:function(){return e(this)},create:function(t){return e(t)}}}(null),H={eval:function(){var e=this.value_,t=this.error_;if(t)throw t;if(null!=e)return e?O.True:O.False},value:function(e){this.value_=e},error:function(e){this.error_=e},reset:function(){this.value_=this.error_=null}},Q=function(e){function t(t,n,i,r){var o=e.call(this)||this;return 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e.makeImportant?e.makeImportant():e})),this.strictImports,this.visibilityInfo())},t.prototype.matchArgs=function(e){return!e||0===e.length},t.prototype.matchCondition=function(e,t){var n=this.selectors[this.selectors.length-1];return!!n.evaldCondition&&!(n.condition&&!n.condition.eval(new q.Eval(t,t.frames)))},t.prototype.resetCache=function(){this._rulesets=null,this._variables=null,this._properties=null,this._lookups={}},t.prototype.variables=function(){return this._variables||(this._variables=this.rules?this.rules.reduce((function(e,t){if(t instanceof N&&!0===t.variable&&(e[t.name]=t),"Import"===t.type&&t.root&&t.root.variables){var n=t.root.variables();for(var i in n)n.hasOwnProperty(i)&&(e[i]=t.root.variable(i))}return e}),{}):{}),this._variables},t.prototype.properties=function(){return this._properties||(this._properties=this.rules?this.rules.reduce((function(e,t){if(t instanceof N&&!0!==t.variable){var n=1===t.name.length&&t.name[0]instanceof 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n},t.prototype.prependRule=function(e){var t=this.rules;t?t.unshift(e):this.rules=[e],this.setParent(e,this)},t.prototype.find=function(e,t,n){void 0===t&&(t=this);var i,r,o=[],s=e.toCSS();return s in this._lookups?this._lookups[s]:(this.rulesets().forEach((function(s){if(s!==t)for(var a=0;a<s.selectors.length;a++)if(i=e.match(s.selectors[a])){if(e.elements.length>i){if(!n||n(s)){r=s.find(new F(e.elements.slice(i)),t,n);for(var l=0;l<r.length;++l)r[l].path.push(s);Array.prototype.push.apply(o,r)}}else o.push({rule:s,path:[]});break}})),this._lookups[s]=o,o)},t.prototype.genCSS=function(e,t){var n,i,r,o,s,a=[];e.tabLevel=e.tabLevel||0,this.root||e.tabLevel++;var l,u=e.compress?"":Array(e.tabLevel+1).join("  "),c=e.compress?"":Array(e.tabLevel).join("  "),h=0,f=0;for(n=0;o=this.rules[n];n++)o instanceof U?(f===n&&f++,a.push(o)):o.isCharset&&o.isCharset()?(a.splice(h,0,o),h++,f++):"Import"===o.type?(a.splice(f,0,o),f++):a.push(o);if(a=[].concat(a),!this.root){(r=B(e,this,c))&&(t.add(r),t.add(c));var p=this.paths,v=p.length,d=void 0;for(l=e.compress?",":",\n"+c,n=0;n<v;n++)if(d=(s=p[n]).length)for(n>0&&t.add(l),e.firstSelector=!0,s[0].genCSS(e,t),e.firstSelector=!1,i=1;i<d;i++)s[i].genCSS(e,t);t.add((e.compress?"{":" {\n")+u)}for(n=0;o=a[n];n++){n+1===a.length&&(e.lastRule=!0);var m=e.lastRule;o.isRulesetLike(o)&&(e.lastRule=!1),o.genCSS?o.genCSS(e,t):o.value&&t.add(o.value.toString()),e.lastRule=m,!e.lastRule&&o.isVisible()?t.add(e.compress?"":"\n"+u):e.lastRule=!1}this.root||(t.add(e.compress?"}":"\n"+c+"}"),e.tabLevel--),t.isEmpty()||e.compress||!this.firstRoot||t.add("\n")},t.prototype.joinSelectors=function(e,t,n){for(var i=0;i<n.length;i++)this.joinSelector(e,t,n[i])},t.prototype.joinSelector=function(e,t,n){function i(e,t){var n,i;if(0===e.length)n=new d(e[0]);else{var r=new 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c=[[n]];for(u=0;u<c.length;u++)e.push(c[u])},t}(h);Q.prototype.type="Ruleset",Q.prototype.isRuleset=!0;var K=function(e){function t(t,n,i,r,o,s,a,l){var u,c=e.call(this)||this;if(c.name=t,c.value=n instanceof h?n:n?new L(n):n,i){for(Array.isArray(i)?c.rules=i:(c.rules=[i],c.rules[0].selectors=new F([],null,null,r,o).createEmptySelectors()),u=0;u<c.rules.length;u++)c.rules[u].allowImports=!0;c.setParent(c.rules,c)}return c._index=r,c._fileInfo=o,c.debugInfo=s,c.isRooted=a||!1,c.copyVisibilityInfo(l),c.allowRoot=!0,c}return o(t,e),t.prototype.accept=function(e){var t=this.value,n=this.rules;n&&(this.rules=e.visitArray(n)),t&&(this.value=e.visit(t))},t.prototype.isRulesetLike=function(){return this.rules||!this.isCharset()},t.prototype.isCharset=function(){return"@charset"===this.name},t.prototype.genCSS=function(e,t){var n=this.value,i=this.rules;t.add(this.name,this.fileInfo(),this.getIndex()),n&&(t.add(" 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t;for(t=0;t<this.numerator.length;t++)this.numerator[t]=e(this.numerator[t],!1);for(t=0;t<this.denominator.length;t++)this.denominator[t]=e(this.denominator[t],!0)},t.prototype.usedUnits=function(){var e,t,n,i={};for(n in t=function(t){return e.hasOwnProperty(t)&&!i[n]&&(i[n]=t),t},u)u.hasOwnProperty(n)&&(e=u[n],this.map(t));return i},t.prototype.cancel=function(){var e,t,n={};for(t=0;t<this.numerator.length;t++)n[e=this.numerator[t]]=(n[e]||0)+1;for(t=0;t<this.denominator.length;t++)n[e=this.denominator[t]]=(n[e]||0)-1;for(e in this.numerator=[],this.denominator=[],n)if(n.hasOwnProperty(e)){var i=n[e];if(i>0)for(t=0;t<i;t++)this.numerator.push(e);else if(i<0)for(t=0;t<-i;t++)this.denominator.push(e)}this.numerator.sort(),this.denominator.sort()},t}(h);Y.prototype.type="Unit";var X=function(e){function t(t,n){var i=e.call(this)||this;if(i.value=parseFloat(t),isNaN(i.value))throw new Error("Dimension is not a number.");return i.unit=n&&n instanceof Y?n:new Y(n?[n]:void 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Correct the units or use the unit function. Bad unit: "+this.unit.toString());var n=this.fround(e,this.value),i=String(n);if(0!==n&&n<1e-6&&n>-1e-6&&(i=n.toFixed(20).replace(/0+$/,"")),e&&e.compress){if(0===n&&this.unit.isLength())return void t.add(i);n>0&&n<1&&(i=i.substr(1))}t.add(i),this.unit.genCSS(e,t)},t.prototype.operate=function(e,n,i){var r=this._operate(e,n,this.value,i.value),o=this.unit.clone();if("+"===n||"-"===n)if(0===o.numerator.length&&0===o.denominator.length)o=i.unit.clone(),this.unit.backupUnit&&(o.backupUnit=this.unit.backupUnit);else if(0===i.unit.numerator.length&&0===o.denominator.length);else{if(i=i.convertTo(this.unit.usedUnits()),e.strictUnits&&i.unit.toString()!==o.toString())throw new Error("Incompatible units. Change the units or use the unit function. Bad units: '"+o.toString()+"' and '"+i.unit.toString()+"'.");r=this._operate(e,n,this.value,i.value)}else"*"===n?(o.numerator=o.numerator.concat(i.unit.numerator).sort(),o.denominator=o.denominator.concat(i.unit.denominator).sort(),o.cancel()):"/"===n&&(o.numerator=o.numerator.concat(i.unit.denominator).sort(),o.denominator=o.denominator.concat(i.unit.numerator).sort(),o.cancel());return new t(r,o)},t.prototype.compare=function(e){var n,i;if(e instanceof t){if(this.unit.isEmpty()||e.unit.isEmpty())n=this,i=e;else if(n=this.unify(),i=e.unify(),0!==n.unit.compare(i.unit))return;return h.numericCompare(n.value,i.value)}},t.prototype.unify=function(){return this.convertTo({length:"px",duration:"s",angle:"rad"})},t.prototype.convertTo=function(e){var n,i,r,o,s,a=this.value,l=this.unit.clone(),c={};if("string"==typeof e){for(n in u)u[n].hasOwnProperty(e)&&((c={})[n]=e);e=c}for(i in s=function(e,t){return r.hasOwnProperty(e)?(t?a/=r[e]/r[o]:a*=r[e]/r[o],o):e},e)e.hasOwnProperty(i)&&(o=e[i],r=u[i],l.map(s));return l.cancel(),new t(a,l)},t}(h);X.prototype.type="Dimension";var ee=b,te=function(e){function t(t,n,i){var r=e.call(this)||this;return r.op=t.trim(),r.operands=n,r.isSpaced=i,r}return o(t,e),t.prototype.accept=function(e){this.operands=e.visitArray(this.operands)},t.prototype.eval=function(e){var n,i=this.operands[0].eval(e),r=this.operands[1].eval(e);if(e.isMathOn(this.op)){if(n="./"===this.op?"/":this.op,i instanceof X&&r instanceof f&&(i=i.toColor()),r instanceof X&&i instanceof f&&(r=r.toColor()),!i.operate){if(i instanceof t&&"/"===i.op&&e.math===ee.PARENS_DIVISION)return new t(this.op,[i,r],this.isSpaced);throw{type:"Operation",message:"Operation on an invalid type"}}return i.operate(e,n,r)}return new t(this.op,[i,r],this.isSpaced)},t.prototype.genCSS=function(e,t){this.operands[0].genCSS(e,t),this.isSpaced&&t.add(" "),t.add(this.op),this.isSpaced&&t.add(" 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o(t,e),t.prototype.accept=function(e){this.args&&(this.args=e.visitArray(this.args))},t.prototype.eval=function(e){var n=this,i=e.mathOn;e.mathOn=!this.calc,(this.calc||e.inCalc)&&e.enterCalc();var r,o=function(){(n.calc||e.inCalc)&&e.exitCalc(),e.mathOn=i},s=new re(this.name,e,this.getIndex(),this.fileInfo());if(s.isValid()){try{r=s.call(this.args),o()}catch(e){if(e.hasOwnProperty("line")&&e.hasOwnProperty("column"))throw e;throw{type:e.type||"Runtime",message:"error evaluating function `"+this.name+"`"+(e.message?": "+e.message:""),index:this.getIndex(),filename:this.fileInfo().filename,line:e.lineNumber,column:e.columnNumber}}if(null!=r)return r instanceof h||(r=new L(r&&!0!==r?r.toString():null)),r._index=this._index,r._fileInfo=this._fileInfo,r}var a=this.args.map((function(t){return t.eval(e)}));return o(),new t(this.name,a,this.getIndex(),this.fileInfo())},t.prototype.genCSS=function(e,t){t.add(this.name+"(",this.fileInfo(),this.getIndex());for(var n=0;n<this.args.length;n++)this.args[n].genCSS(e,t),n+1<this.args.length&&t.add(", ");t.add(")")},t}(h);oe.prototype.type="Call";var se=function(e){function t(t,n,i){var r=e.call(this)||this;return r.name=t,r._index=n,r._fileInfo=i,r}return o(t,e),t.prototype.eval=function(e){var n,i=this.name;if(0===i.indexOf("@@")&&(i="@"+new t(i.slice(1),this.getIndex(),this.fileInfo()).eval(e).value),this.evaluating)throw{type:"Name",message:"Recursive variable definition for "+i,filename:this.fileInfo().filename,index:this.getIndex()};if(this.evaluating=!0,n=this.find(e.frames,(function(t){var n=t.variable(i);if(n){if(n.important)e.importantScope[e.importantScope.length-1].important=n.important;return e.inCalc?new oe("_SELF",[n.value]).eval(e):n.value.eval(e)}})))return this.evaluating=!1,n;throw{type:"Name",message:"variable "+i+" is undefined",filename:this.fileInfo().filename,index:this.getIndex()}},t.prototype.find=function(e,t){for(var n=0,i=void 0;n<e.length;n++)if(i=t.call(e,e[n]))return i;return null},t}(h);se.prototype.type="Variable";var ae=function(e){function t(t,n,i){var r=e.call(this)||this;return r.name=t,r._index=n,r._fileInfo=i,r}return o(t,e),t.prototype.eval=function(e){var t,n=this.name,i=e.pluginManager.less.visitors.ToCSSVisitor.prototype._mergeRules;if(this.evaluating)throw{type:"Name",message:"Recursive property reference for "+n,filename:this.fileInfo().filename,index:this.getIndex()};if(this.evaluating=!0,t=this.find(e.frames,(function(t){var r,o=t.property(n);if(o){for(var s=0;s<o.length;s++)r=o[s],o[s]=new N(r.name,r.value,r.important,r.merge,r.index,r.currentFileInfo,r.inline,r.variable);if(i(o),(r=o[o.length-1]).important)e.importantScope[e.importantScope.length-1].important=r.important;return r=r.value.eval(e)}})))return this.evaluating=!1,t;throw{type:"Name",message:"Property '"+n+"' is undefined",filename:this.currentFileInfo.filename,index:this.index}},t.prototype.find=function(e,t){for(var n=0,i=void 0;n<e.length;n++)if(i=t.call(e,e[n]))return i;return null},t}(h);ae.prototype.type="Property";var le=function(e){function t(t,n,i){var r=e.call(this)||this;return r.key=t,r.op=n,r.value=i,r}return o(t,e),t.prototype.eval=function(e){return new t(this.key.eval?this.key.eval(e):this.key,this.op,this.value&&this.value.eval?this.value.eval(e):this.value)},t.prototype.genCSS=function(e,t){t.add(this.toCSS(e))},t.prototype.toCSS=function(e){var t=this.key.toCSS?this.key.toCSS(e):this.key;return this.op&&(t+=this.op,t+=this.value.toCSS?this.value.toCSS(e):this.value),"["+t+"]"},t}(h);le.prototype.type="Attribute";var ue=function(e){function t(t,n,i,r,o){var s=e.call(this)||this;return s.escaped=null==i||i,s.value=n||"",s.quote=t.charAt(0),s._index=r,s._fileInfo=o,s.variableRegex=/@\{([\w-]+)\}/g,s.propRegex=/\$\{([\w-]+)\}/g,s.allowRoot=i,s}return o(t,e),t.prototype.genCSS=function(e,t){this.escaped||t.add(this.quote,this.fileInfo(),this.getIndex()),t.add(this.value),this.escaped||t.add(this.quote)},t.prototype.containsVariables=function(){return this.value.match(this.variableRegex)},t.prototype.eval=function(e){var n=this,i=this.value;function r(e,t,n){var i=e;do{e=i.toString(),i=e.replace(t,n)}while(e!==i);return i}return i=r(i,this.variableRegex,(function(i,r){var o=new se("@"+r,n.getIndex(),n.fileInfo()).eval(e,!0);return o instanceof t?o.value:o.toCSS()})),i=r(i,this.propRegex,(function(i,r){var o=new ae("$"+r,n.getIndex(),n.fileInfo()).eval(e,!0);return o instanceof t?o.value:o.toCSS()})),new t(this.quote+i+this.quote,i,this.escaped,this.getIndex(),this.fileInfo())},t.prototype.compare=function(e){return"Quoted"!==e.type||this.escaped||e.escaped?e.toCSS&&this.toCSS()===e.toCSS()?0:void 0:h.numericCompare(this.value,e.value)},t}(h);ue.prototype.type="Quoted";var ce=function(e){function t(t,n,i,r){var o=e.call(this)||this;return o.value=t,o._index=n,o._fileInfo=i,o.isEvald=r,o}return o(t,e),t.prototype.accept=function(e){this.value=e.visit(this.value)},t.prototype.genCSS=function(e,t){t.add("url("),this.value.genCSS(e,t),t.add(")")},t.prototype.eval=function(e){var n,i=this.value.eval(e);if(!this.isEvald&&("string"==typeof(n=this.fileInfo()&&this.fileInfo().rootpath)&&"string"==typeof i.value&&e.pathRequiresRewrite(i.value)?(i.quote||(n=n.replace(/['"\s]/g,(function(e){return"\\"+e}))),i.value=e.rewritePath(i.value,n)):i.value=e.normalizePath(i.value),e.urlArgs&&!i.value.match(/^\s*data:/))){var r=(-1===i.value.indexOf("?")?"?":"&")+e.urlArgs;-1!==i.value.indexOf("#")?i.value=i.value.replace("#",r+"#"):i.value+=r}return new t(i,this.getIndex(),this.fileInfo(),!0)},t}(h);ce.prototype.type="Url";var he=function(e){function t(t,n,i,r,o){var s=e.call(this)||this;s._index=i,s._fileInfo=r;var a=new F([],null,null,s._index,s._fileInfo).createEmptySelectors();return s.features=new $(n),s.rules=[new Q(a,t)],s.rules[0].allowImports=!0,s.copyVisibilityInfo(o),s.allowRoot=!0,s.setParent(a,s),s.setParent(s.features,s),s.setParent(s.rules,s),s}return o(t,e),t.prototype.isRulesetLike=function(){return!0},t.prototype.accept=function(e){this.features&&(this.features=e.visit(this.features)),this.rules&&(this.rules=e.visitArray(this.rules))},t.prototype.genCSS=function(e,t){t.add("@media ",this._fileInfo,this._index),this.features.genCSS(e,t),this.outputRuleset(e,t,this.rules)},t.prototype.eval=function(e){e.mediaBlocks||(e.mediaBlocks=[],e.mediaPath=[]);var n=new t(null,[],this._index,this._fileInfo,this.visibilityInfo());return this.debugInfo&&(this.rules[0].debugInfo=this.debugInfo,n.debugInfo=this.debugInfo),n.features=this.features.eval(e),e.mediaPath.push(n),e.mediaBlocks.push(n),this.rules[0].functionRegistry=e.frames[0].functionRegistry.inherit(),e.frames.unshift(this.rules[0]),n.rules=[this.rules[0].eval(e)],e.frames.shift(),e.mediaPath.pop(),0===e.mediaPath.length?n.evalTop(e):n.evalNested(e)},t.prototype.evalTop=function(e){var t=this;if(e.mediaBlocks.length>1){var n=new F([],null,null,this.getIndex(),this.fileInfo()).createEmptySelectors();(t=new Q(n,e.mediaBlocks)).multiMedia=!0,t.copyVisibilityInfo(this.visibilityInfo()),this.setParent(t,this)}return delete e.mediaBlocks,delete e.mediaPath,t},t.prototype.evalNested=function(e){var t,n,i=e.mediaPath.concat([this]);for(t=0;t<i.length;t++)n=i[t].features instanceof $?i[t].features.value:i[t].features,i[t]=Array.isArray(n)?n:[n];return this.features=new $(this.permute(i).map((function(e){for(e=e.map((function(e){return e.toCSS?e:new 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