!function(t,e){"object"==typeof exports&&"object"==typeof module?module.exports=e():"function"==typeof define&&define.amd?define([],e):"object"==typeof exports?exports.pem=e():t.pem=e()}(this,()=>(()=>{"use strict";var t={d:(e,s)=>{for(var n in s)t.o(s,n)&&!t.o(e,n)&&Object.defineProperty(e,n,{enumerable:!0,get:s[n]})},o:(t,e)=>Object.prototype.hasOwnProperty.call(t,e),r:t=>{"undefined"!=typeof Symbol&&Symbol.toStringTag&&Object.defineProperty(t,Symbol.toStringTag,{value:"Module"}),Object.defineProperty(t,"__esModule",{value:!0})}},e={};t.r(e),t.d(e,{Expression:()=>s,Matcher:()=>i,default:()=>r});class s{constructor(t,e={}){this.pattern=t,this.separator=e.separator||".",this.segments=this._parse(t),this._hasDeepWildcard=this.segments.some(t=>"deep-wildcard"===t.type),this._hasAttributeCondition=this.segments.some(t=>void 0!==t.attrName),this._hasPositionSelector=this.segments.some(t=>void 0!==t.position)}_parse(t){const e=[];let s=0,n="";for(;s0&&(this.path[this.path.length-1].values=void 0);const n=this.path.length;this.siblingStacks[n]||(this.siblingStacks[n]=new Map);const i=this.siblingStacks[n],r=s?`${s}:${t}`:t,a=i.get(r)||0;let h=0;for(const t of i.values())h+=t;i.set(r,a+1);const o={tag:t,position:h,counter:a};null!=s&&(o.namespace=s),null!=e&&(o.values=e),this.path.push(o)}pop(){if(0===this.path.length)return;this._pathStringCache=null;const t=this.path.pop();return this.siblingStacks.length>this.path.length+1&&(this.siblingStacks.length=this.path.length+1),t}updateCurrent(t){if(this.path.length>0){const e=this.path[this.path.length-1];null!=t&&(e.values=t)}}getCurrentTag(){return this.path.length>0?this.path[this.path.length-1].tag:void 0}getCurrentNamespace(){return this.path.length>0?this.path[this.path.length-1].namespace:void 0}getAttrValue(t){if(0===this.path.length)return;const e=this.path[this.path.length-1];return e.values?.[t]}hasAttr(t){if(0===this.path.length)return!1;const e=this.path[this.path.length-1];return void 0!==e.values&&t in e.values}getPosition(){return 0===this.path.length?-1:this.path[this.path.length-1].position??0}getCounter(){return 0===this.path.length?-1:this.path[this.path.length-1].counter??0}getIndex(){return this.getPosition()}getDepth(){return this.path.length}toString(t,e=!0){const s=t||this.separator;if(s===this.separator&&!0===e){if(null!==this._pathStringCache&&void 0!==this._pathStringCache)return this._pathStringCache;const t=this.path.map(t=>e&&t.namespace?`${t.namespace}:${t.tag}`:t.tag).join(s);return this._pathStringCache=t,t}return this.path.map(t=>e&&t.namespace?`${t.namespace}:${t.tag}`:t.tag).join(s)}toArray(){return this.path.map(t=>t.tag)}reset(){this._pathStringCache=null,this.path=[],this.siblingStacks=[]}matches(t){const e=t.segments;return 0!==e.length&&(t.hasDeepWildcard()?this._matchWithDeepWildcard(e):this._matchSimple(e))}_matchSimple(t){if(this.path.length!==t.length)return!1;for(let e=0;e=0&&e>=0;){const n=t[s];if("deep-wildcard"===n.type){if(s--,s<0)return!0;const n=t[s];let i=!1;for(let t=e;t>=0;t--){const r=t===this.path.length-1;if(this._matchSegment(n,this.path[t],r)){e=t-1,s--,i=!0;break}}if(!i)return!1}else{const t=e===this.path.length-1;if(!this._matchSegment(n,this.path[e],t))return!1;e--,s--}}return s<0}_matchSegment(t,e,s){if("*"!==t.tag&&t.tag!==e.tag)return!1;if(void 0!==t.namespace&&"*"!==t.namespace&&t.namespace!==e.namespace)return!1;if(void 0!==t.attrName){if(!s)return!1;if(!e.values||!(t.attrName in e.values))return!1;if(void 0!==t.attrValue){const s=e.values[t.attrName];if(String(s)!==String(t.attrValue))return!1}}if(void 0!==t.position){if(!s)return!1;const n=e.counter??0;if("first"===t.position&&0!==n)return!1;if("odd"===t.position&&n%2!=1)return!1;if("even"===t.position&&n%2!=0)return!1;if("nth"===t.position&&n!==t.positionValue)return!1}return!0}snapshot(){return{path:this.path.map(t=>({...t})),siblingStacks:this.siblingStacks.map(t=>new Map(t))}}restore(t){this._pathStringCache=null,this.path=t.path.map(t=>({...t})),this.siblingStacks=t.siblingStacks.map(t=>new Map(t))}readOnly(){return new Proxy(this,{get(t,e,s){if(n.has(e))return()=>{throw new TypeError(`Cannot call '${e}' on a read-only Matcher. Obtain a writable instance to mutate state.`)};const i=Reflect.get(t,e,s);return"path"===e||"siblingStacks"===e?Object.freeze(Array.isArray(i)?i.map(t=>t instanceof Map?Object.freeze(new Map(t)):Object.freeze({...t})):i):"function"==typeof i?i.bind(t):i},set(t,e){throw new TypeError(`Cannot set property '${String(e)}' on a read-only Matcher.`)},deleteProperty(t,e){throw new TypeError(`Cannot delete property '${String(e)}' from a read-only Matcher.`)}})}}const r={Expression:s,Matcher:i};return e})()); //# sourceMappingURL=pem.min.js.map