Website Structure

Frontend-Learner/node_modules/@csstools/selector-resolve-nested/CHANGELOG.md

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+# Changes to Selector Resolve Nested
+
+### 3.1.0
+
+_June 6, 2025_
+
+- Add `ignoreImplicitNesting` option to `resolveNestedSelector`
+
+[Full CHANGELOG](https://github.com/csstools/postcss-plugins/tree/main/packages/selector-resolve-nested/CHANGELOG.md)

Frontend-Learner/node_modules/@csstools/selector-resolve-nested/LICENSE.md

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+MIT No Attribution (MIT-0)
+
+Copyright © CSSTools Contributors
+
+Permission is hereby granted, free of charge, to any person obtaining a copy of
+this software and associated documentation files (the “Software”), to deal in
+the Software without restriction, including without limitation the rights to
+use, copy, modify, merge, publish, distribute, sublicense, and/or sell copies
+of the Software, and to permit persons to whom the Software is furnished to do
+so.
+
+THE SOFTWARE IS PROVIDED “AS IS”, WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
+AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
+OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
+SOFTWARE.

Frontend-Learner/node_modules/@csstools/selector-resolve-nested/README.md

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+# Selector Resolve Nested [<img src="https://postcss.github.io/postcss/logo.svg" alt="for PostCSS" width="90" height="90" align="right">][postcss]
+
+[<img alt="npm version" src="https://img.shields.io/npm/v/@csstools/selector-resolve-nested.svg" height="20">][npm-url]
+[<img alt="Build Status" src="https://github.com/csstools/postcss-plugins/actions/workflows/test.yml/badge.svg?branch=main" height="20">][cli-url]
+[<img alt="Discord" src="https://shields.io/badge/Discord-5865F2?logo=discord&logoColor=white">][discord]
+
+## API
+
+[Read the API docs](./docs/selector-resolve-nested.md)
+
+## Usage
+
+Add [Selector Resolve Nested] to your project:
+
+```bash
+npm install @csstools/selector-resolve-nested --save-dev
+```
+
+```js
+import { resolveNestedSelector } from '@csstools/selector-resolve-nested';
+import parser from 'postcss-selector-parser';
+
+const a = parser().astSync('.foo &');
+const b = parser().astSync('.bar');
+
+resolveNestedSelector(a, b); // '.foo .bar'
+```
+
+[cli-url]: https://github.com/csstools/postcss-plugins/actions/workflows/test.yml?query=workflow/test
+[discord]: https://discord.gg/bUadyRwkJS
+[npm-url]: https://www.npmjs.com/package/@csstools/selector-resolve-nested
+[postcss]: https://github.com/postcss/postcss
+
+[Selector Resolve Nested]: https://github.com/csstools/postcss-plugins/tree/main/packages/selector-resolve-nested

Frontend-Learner/node_modules/@csstools/selector-resolve-nested/dist/index.cjs

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+"use strict";var e=require("postcss-selector-parser");function sourceFrom(e){return{sourceIndex:e.sourceIndex??0,source:e.source}}function sortCompoundSelectorsInsideComplexSelector(o){const t=[];let r=[];o.each((o=>{if("combinator"===o.type)return t.push(r,[o]),void(r=[]);if(e.isPseudoElement(o))return t.push(r),void(r=[o]);if("universal"===o.type&&r.find((e=>"universal"===e.type)))o.remove();else{if("tag"===o.type&&r.find((e=>"tag"===e.type))){o.remove();const t=e.selector({value:"",...sourceFrom(o)});t.append(o);const n=e.pseudo({value:":is",...sourceFrom(o)});return n.append(t),void r.push(n)}r.push(o)}})),t.push(r);const n=[];for(let e=0;e<t.length;e++){const o=t[e];o.sort(((e,o)=>selectorTypeOrder(e)-selectorTypeOrder(o))),n.push(...o)}o.removeAll();for(let e=n.length-1;e>=0;e--)n[e].remove(),n[e].parent=o,o.nodes.unshift(n[e])}function selectorTypeOrder(t){return e.isPseudoElement(t)?o.pseudoElement:o[t.type]}const o={universal:0,tag:1,pseudoElement:2,nesting:3,id:4,class:5,attribute:6,pseudo:7,comment:8};function prepareParentSelectors(o,t=!1){if(t||!isCompoundSelector(o.nodes)){const t=e.pseudo({value:":is",...sourceFrom(o)});return o.nodes.forEach((e=>{t.append(e.clone())})),[t]}return o.nodes[0].nodes.map((e=>e.clone()))}function isCompoundSelector(o){return 1===o.length&&!o[0].nodes.some((o=>"combinator"===o.type||e.isPseudoElement(o)))}function combinationsWithSizeN(e,o){if(o<2)throw new Error("n must be greater than 1");if(e.length<2)throw new Error("s must be greater than 1");if(Math.pow(e.length,o)>1e4)throw new Error("Too many combinations when trying to resolve a nested selector with lists, reduce the complexity of your selectors");const t=[];for(let e=0;e<o;e++)t[e]=0;const r=[];for(;;){const n=[];for(let s=o-1;s>=0;s--){let o=t[s];if(o>=e.length){if(o=0,t[s]=0,0===s)return r;t[s-1]+=1}n[s]=e[o].clone()}r.push(n),t[t.length-1]++}}exports.flattenNestedSelector=function flattenNestedSelector(o,t){const r=[];for(let n=0;n<o.nodes.length;n++){const s=o.nodes[n].clone();let c,l=0;{let o=!1;s.walkNesting((()=>{o=!0,l++})),o?"combinator"===s.nodes[0]?.type&&(s.prepend(e.nesting({...sourceFrom(s)})),l++):(s.prepend(e.combinator({value:" ",...sourceFrom(s)})),s.prepend(e.nesting({...sourceFrom(s)})),l++)}let p=[];if(l>1&&t.nodes.length>1)p=combinationsWithSizeN(t.nodes,l),c=p.length;else{c=t.nodes.length;for(let e=0;e<t.nodes.length;e++){p.push([]);for(let o=0;o<l;o++)p[e].push(t.nodes[e].clone())}}for(let e=0;e<c;e++){let o=0;const t=s.clone();t.walkNesting((t=>{const r=p[e][o];o++,t.replaceWith(...r.nodes)})),r.push(t)}}const n=e.root({value:"",...sourceFrom(o)});return r.forEach((e=>{n.append(e)})),n},exports.resolveNestedSelector=function resolveNestedSelector(o,t,r){const n=[];for(let s=0;s<o.nodes.length;s++){const c=o.nodes[s].clone();if(!r?.ignoreImplicitNesting){let o=!1;c.walkNesting((()=>(o=!0,!1))),o?"combinator"===c.nodes[0]?.type&&c.prepend(e.nesting({...sourceFrom(c)})):(c.prepend(e.combinator({value:" ",...sourceFrom(c)})),c.prepend(e.nesting({...sourceFrom(c)})))}{const e=new Set;c.walkNesting((o=>{const r=o.parent;r&&(e.add(r),"pseudo"===r.parent?.type&&":has"===r.parent.value?.toLowerCase()?o.replaceWith(...prepareParentSelectors(t,!0)):o.replaceWith(...prepareParentSelectors(t)))}));for(const o of e)sortCompoundSelectorsInsideComplexSelector(o)}c.walk((e=>{"combinator"===e.type&&""!==e.value.trim()?(e.rawSpaceAfter=" ",e.rawSpaceBefore=" "):(e.rawSpaceAfter="",e.rawSpaceBefore="")})),n.push(c)}const s=e.root({value:"",...sourceFrom(o)});return n.forEach((e=>{s.append(e)})),s};

Frontend-Learner/node_modules/@csstools/selector-resolve-nested/dist/index.d.ts

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+/**
+ * Resolve nested selectors following the CSS nesting specification.
+ *
+ * @example
+ *
+ * ```js
+ * import { resolveNestedSelector } from '@csstools/selector-resolve-nested';
+ * import parser from 'postcss-selector-parser';
+ *
+ * const selector = parser().astSync('.foo &');
+ * const parent = parser().astSync('.bar');
+ *
+ * // .foo .bar
+ * console.log(
+ *   resolveNestedSelector(selector, parent).toString()
+ * )
+ * ```
+ *
+ * @packageDocumentation
+ */
+
+import type { Root } from 'postcss-selector-parser';
+
+/**
+ * Flatten a nested selector against a given parent selector.
+ *
+ * ⚠️ This is not a method to generate the equivalent un-nested selector.
+ * It is purely a method to construct a single selector AST that contains the parts of both the current and parent selector.
+ * It will not have the correct specificity and it will not match the right elements when used as a selector.
+ * It will not always serialize to a valid selector.
+ *
+ * @param selector - The selector to resolve.
+ * @param parentSelector - The parent selector to resolve against.
+ * @returns The resolved selector.
+ */
+export declare function flattenNestedSelector(selector: Root, parentSelector: Root): Root;
+
+/**
+ * Resolve a nested selector against a given parent selector.
+ *
+ * @param selector - The selector to resolve.
+ * @param parentSelector - The parent selector to resolve against.
+ * @param options - Change how resolving happens.
+ * @returns The resolved selector.
+ */
+export declare function resolveNestedSelector(selector: Root, parentSelector: Root, options?: ResolveOptions): Root;
+
+export declare interface ResolveOptions {
+    /**
+     * If implicit `&` selectors should be prepended to the selector before resolving
+     */
+    ignoreImplicitNesting: boolean;
+}
+
+export { }

Frontend-Learner/node_modules/@csstools/selector-resolve-nested/dist/index.mjs

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+import e from"postcss-selector-parser";function sourceFrom(e){return{sourceIndex:e.sourceIndex??0,source:e.source}}function sortCompoundSelectorsInsideComplexSelector(o){const t=[];let r=[];o.each((o=>{if("combinator"===o.type)return t.push(r,[o]),void(r=[]);if(e.isPseudoElement(o))return t.push(r),void(r=[o]);if("universal"===o.type&&r.find((e=>"universal"===e.type)))o.remove();else{if("tag"===o.type&&r.find((e=>"tag"===e.type))){o.remove();const t=e.selector({value:"",...sourceFrom(o)});t.append(o);const n=e.pseudo({value:":is",...sourceFrom(o)});return n.append(t),void r.push(n)}r.push(o)}})),t.push(r);const n=[];for(let e=0;e<t.length;e++){const o=t[e];o.sort(((e,o)=>selectorTypeOrder(e)-selectorTypeOrder(o))),n.push(...o)}o.removeAll();for(let e=n.length-1;e>=0;e--)n[e].remove(),n[e].parent=o,o.nodes.unshift(n[e])}function selectorTypeOrder(t){return e.isPseudoElement(t)?o.pseudoElement:o[t.type]}const o={universal:0,tag:1,pseudoElement:2,nesting:3,id:4,class:5,attribute:6,pseudo:7,comment:8};function resolveNestedSelector(o,t,r){const n=[];for(let s=0;s<o.nodes.length;s++){const c=o.nodes[s].clone();if(!r?.ignoreImplicitNesting){let o=!1;c.walkNesting((()=>(o=!0,!1))),o?"combinator"===c.nodes[0]?.type&&c.prepend(e.nesting({...sourceFrom(c)})):(c.prepend(e.combinator({value:" ",...sourceFrom(c)})),c.prepend(e.nesting({...sourceFrom(c)})))}{const e=new Set;c.walkNesting((o=>{const r=o.parent;r&&(e.add(r),"pseudo"===r.parent?.type&&":has"===r.parent.value?.toLowerCase()?o.replaceWith(...prepareParentSelectors(t,!0)):o.replaceWith(...prepareParentSelectors(t)))}));for(const o of e)sortCompoundSelectorsInsideComplexSelector(o)}c.walk((e=>{"combinator"===e.type&&""!==e.value.trim()?(e.rawSpaceAfter=" ",e.rawSpaceBefore=" "):(e.rawSpaceAfter="",e.rawSpaceBefore="")})),n.push(c)}const s=e.root({value:"",...sourceFrom(o)});return n.forEach((e=>{s.append(e)})),s}function prepareParentSelectors(o,t=!1){if(t||!isCompoundSelector(o.nodes)){const t=e.pseudo({value:":is",...sourceFrom(o)});return o.nodes.forEach((e=>{t.append(e.clone())})),[t]}return o.nodes[0].nodes.map((e=>e.clone()))}function isCompoundSelector(o){return 1===o.length&&!o[0].nodes.some((o=>"combinator"===o.type||e.isPseudoElement(o)))}function combinationsWithSizeN(e,o){if(o<2)throw new Error("n must be greater than 1");if(e.length<2)throw new Error("s must be greater than 1");if(Math.pow(e.length,o)>1e4)throw new Error("Too many combinations when trying to resolve a nested selector with lists, reduce the complexity of your selectors");const t=[];for(let e=0;e<o;e++)t[e]=0;const r=[];for(;;){const n=[];for(let s=o-1;s>=0;s--){let o=t[s];if(o>=e.length){if(o=0,t[s]=0,0===s)return r;t[s-1]+=1}n[s]=e[o].clone()}r.push(n),t[t.length-1]++}}function flattenNestedSelector(o,t){const r=[];for(let n=0;n<o.nodes.length;n++){const s=o.nodes[n].clone();let c,l=0;{let o=!1;s.walkNesting((()=>{o=!0,l++})),o?"combinator"===s.nodes[0]?.type&&(s.prepend(e.nesting({...sourceFrom(s)})),l++):(s.prepend(e.combinator({value:" ",...sourceFrom(s)})),s.prepend(e.nesting({...sourceFrom(s)})),l++)}let p=[];if(l>1&&t.nodes.length>1)p=combinationsWithSizeN(t.nodes,l),c=p.length;else{c=t.nodes.length;for(let e=0;e<t.nodes.length;e++){p.push([]);for(let o=0;o<l;o++)p[e].push(t.nodes[e].clone())}}for(let e=0;e<c;e++){let o=0;const t=s.clone();t.walkNesting((t=>{const r=p[e][o];o++,t.replaceWith(...r.nodes)})),r.push(t)}}const n=e.root({value:"",...sourceFrom(o)});return r.forEach((e=>{n.append(e)})),n}export{flattenNestedSelector,resolveNestedSelector};

Frontend-Learner/node_modules/@csstools/selector-resolve-nested/package.json

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+{
+	"name": "@csstools/selector-resolve-nested",
+	"description": "Resolve nested CSS selectors",
+	"version": "3.1.0",
+	"contributors": [
+		{
+			"name": "Antonio Laguna",
+			"email": "antonio@laguna.es",
+			"url": "https://antonio.laguna.es"
+		},
+		{
+			"name": "Romain Menke",
+			"email": "romainmenke@gmail.com"
+		}
+	],
+	"license": "MIT-0",
+	"funding": [
+		{
+			"type": "github",
+			"url": "https://github.com/sponsors/csstools"
+		},
+		{
+			"type": "opencollective",
+			"url": "https://opencollective.com/csstools"
+		}
+	],
+	"engines": {
+		"node": ">=18"
+	},
+	"type": "module",
+	"main": "dist/index.cjs",
+	"module": "dist/index.mjs",
+	"exports": {
+		".": {
+			"import": {
+				"types": "./dist/index.d.ts",
+				"default": "./dist/index.mjs"
+			},
+			"require": {
+				"default": "./dist/index.cjs"
+			}
+		}
+	},
+	"files": [
+		"CHANGELOG.md",
+		"LICENSE.md",
+		"README.md",
+		"dist"
+	],
+	"peerDependencies": {
+		"postcss-selector-parser": "^7.0.0"
+	},
+	"scripts": {},
+	"homepage": "https://github.com/csstools/postcss-plugins/tree/main/packages/selector-resolve-nested#readme",
+	"repository": {
+		"type": "git",
+		"url": "git+https://github.com/csstools/postcss-plugins.git",
+		"directory": "packages/selector-resolve-nested"
+	},
+	"bugs": "https://github.com/csstools/postcss-plugins/issues",
+	"keywords": [
+		"css",
+		"nested",
+		"postcss-selector-parser"
+	]
+}

Frontend-Learner/node_modules/@csstools/selector-specificity/CHANGELOG.md

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+# Changes to Selector Specificity
+
+### 5.0.0
+
+_October 23, 2024_
+
+- Updated: `postcss-selector-parser`
+
+[Full CHANGELOG](https://github.com/csstools/postcss-plugins/tree/main/packages/selector-specificity/CHANGELOG.md)

Frontend-Learner/node_modules/@csstools/selector-specificity/LICENSE.md

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+MIT No Attribution (MIT-0)
+
+Copyright © CSSTools Contributors
+
+Permission is hereby granted, free of charge, to any person obtaining a copy of
+this software and associated documentation files (the “Software”), to deal in
+the Software without restriction, including without limitation the rights to
+use, copy, modify, merge, publish, distribute, sublicense, and/or sell copies
+of the Software, and to permit persons to whom the Software is furnished to do
+so.
+
+THE SOFTWARE IS PROVIDED “AS IS”, WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
+AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
+OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
+SOFTWARE.

Frontend-Learner/node_modules/@csstools/selector-specificity/README.md

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+# Selector Specificity
+
+[<img alt="npm version" src="https://img.shields.io/npm/v/@csstools/selector-specificity.svg" height="20">][npm-url]
+[<img alt="Build Status" src="https://github.com/csstools/postcss-plugins/workflows/test/badge.svg" height="20">][cli-url]
+[<img alt="Discord" src="https://shields.io/badge/Discord-5865F2?logo=discord&logoColor=white">][discord]
+
+## Usage
+
+Add [Selector Specificity] to your project:
+
+```bash
+npm install @csstools/selector-specificity --save-dev
+```
+
+```js
+import parser from 'postcss-selector-parser';
+import { selectorSpecificity } from '@csstools/selector-specificity';
+
+const selectorAST = parser().astSync('#foo:has(> .foo)');
+const specificity = selectorSpecificity(selectorAST);
+
+console.log(specificity.a); // 1
+console.log(specificity.b); // 1
+console.log(specificity.c); // 0
+```
+
+_`selectorSpecificity` takes a single selector, not a list of selectors (not : `a, b, c`).
+To compare or otherwise manipulate lists of selectors you need to call `selectorSpecificity` on each part._
+
+### Comparing
+
+The package exports a utility function to compare two specificities.
+
+```js
+import { selectorSpecificity, compare } from '@csstools/selector-specificity';
+
+const s1 = selectorSpecificity(ast1);
+const s2 = selectorSpecificity(ast2);
+compare(s1, s2); // -1 | 0 | 1
+```
+
+- if `s1 < s2` then `compare(s1, s2)` returns a negative number (`< 0`)
+- if `s1 > s2` then `compare(s1, s2)` returns a positive number (`> 0`)
+- if `s1 === s2` then `compare(s1, s2)` returns zero (`=== 0`)
+
+## Prior Art
+
+- [keeganstreet/specificity](https://github.com/keeganstreet/specificity)
+- [bramus/specificity](https://github.com/bramus/specificity)
+
+For CSSTools we always use `postcss-selector-parser` and want to calculate specificity from this AST.
+
+[cli-url]: https://github.com/csstools/postcss-plugins/actions/workflows/test.yml?query=workflow/test
+[discord]: https://discord.gg/bUadyRwkJS
+[npm-url]: https://www.npmjs.com/package/@csstools/selector-specificity
+
+[Selector Specificity]: https://github.com/csstools/postcss-plugins/tree/main/packages/selector-specificity

Frontend-Learner/node_modules/@csstools/selector-specificity/dist/index.cjs

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+"use strict";var e=require("postcss-selector-parser");function compare(e,t){return e.a===t.a?e.b===t.b?e.c-t.c:e.b-t.b:e.a-t.a}function selectorSpecificity(t,s){const i=s?.customSpecificity?.(t);if(i)return i;if(!t)return{a:0,b:0,c:0};let c=0,n=0,o=0;if("universal"==t.type)return{a:0,b:0,c:0};if("id"===t.type)c+=1;else if("tag"===t.type)o+=1;else if("class"===t.type)n+=1;else if("attribute"===t.type)n+=1;else if(isPseudoElement(t))switch(t.value.toLowerCase()){case"::slotted":if(o+=1,t.nodes&&t.nodes.length>0){const e=specificityOfMostSpecificListItem(t.nodes,s);c+=e.a,n+=e.b,o+=e.c}break;case"::view-transition-group":case"::view-transition-image-pair":case"::view-transition-old":case"::view-transition-new":return t.nodes&&1===t.nodes.length&&"selector"===t.nodes[0].type&&selectorNodeContainsNothingOrOnlyUniversal(t.nodes[0])?{a:0,b:0,c:0}:{a:0,b:0,c:1};default:o+=1}else if(e.isPseudoClass(t))switch(t.value.toLowerCase()){case":-webkit-any":case":any":default:n+=1;break;case":-moz-any":case":has":case":is":case":matches":case":not":if(t.nodes&&t.nodes.length>0){const e=specificityOfMostSpecificListItem(t.nodes,s);c+=e.a,n+=e.b,o+=e.c}break;case":where":break;case":nth-child":case":nth-last-child":if(n+=1,t.nodes&&t.nodes.length>0){const i=t.nodes[0].nodes.findIndex((e=>"tag"===e.type&&"of"===e.value.toLowerCase()));if(i>-1){const a=e.selector({nodes:[],value:""});t.nodes[0].nodes.slice(i+1).forEach((e=>{a.append(e.clone())}));const r=[a];t.nodes.length>1&&r.push(...t.nodes.slice(1));const l=specificityOfMostSpecificListItem(r,s);c+=l.a,n+=l.b,o+=l.c}}break;case":local":case":global":t.nodes&&t.nodes.length>0&&t.nodes.forEach((e=>{const t=selectorSpecificity(e,s);c+=t.a,n+=t.b,o+=t.c}));break;case":host":case":host-context":if(n+=1,t.nodes&&t.nodes.length>0){const e=specificityOfMostSpecificListItem(t.nodes,s);c+=e.a,n+=e.b,o+=e.c}break;case":active-view-transition":case":active-view-transition-type":return{a:0,b:1,c:0}}else e.isContainer(t)&&t.nodes?.length>0&&t.nodes.forEach((e=>{const t=selectorSpecificity(e,s);c+=t.a,n+=t.b,o+=t.c}));return{a:c,b:n,c:o}}function specificityOfMostSpecificListItem(e,t){let s={a:0,b:0,c:0};return e.forEach((e=>{const i=selectorSpecificity(e,t);compare(i,s)<0||(s=i)})),s}function isPseudoElement(t){return e.isPseudoElement(t)}function selectorNodeContainsNothingOrOnlyUniversal(e){if(!e)return!1;if(!e.nodes)return!1;const t=e.nodes.filter((e=>"comment"!==e.type));return 0===t.length||1===t.length&&"universal"===t[0].type}exports.compare=compare,exports.selectorSpecificity=selectorSpecificity,exports.specificityOfMostSpecificListItem=specificityOfMostSpecificListItem;

Frontend-Learner/node_modules/@csstools/selector-specificity/dist/index.d.ts

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+import type { Node } from 'postcss-selector-parser';
+
+/**
+ * Options for the calculation of the specificity of a selector
+ */
+export declare type CalculationOptions = {
+    /**
+     * The callback to calculate a custom specificity for a node
+     */
+    customSpecificity?: CustomSpecificityCallback;
+};
+
+/**
+ * Compare two specificities
+ * @param s1 The first specificity
+ * @param s2 The second specificity
+ * @returns A value smaller than `0` if `s1` is less specific than `s2`, `0` if `s1` is equally specific as `s2`, a value larger than `0` if `s1` is more specific than `s2`
+ */
+export declare function compare(s1: Specificity, s2: Specificity): number;
+
+/**
+ * Calculate a custom specificity for a node
+ */
+export declare type CustomSpecificityCallback = (node: Node) => Specificity | void | false | null | undefined;
+
+/**
+ * Calculate the specificity for a selector
+ */
+export declare function selectorSpecificity(node: Node, options?: CalculationOptions): Specificity;
+
+/**
+ * The specificity of a selector
+ */
+export declare type Specificity = {
+    /**
+     * The number of ID selectors in the selector
+     */
+    a: number;
+    /**
+     * The number of class selectors, attribute selectors, and pseudo-classes in the selector
+     */
+    b: number;
+    /**
+     * The number of type selectors and pseudo-elements in the selector
+     */
+    c: number;
+};
+
+/**
+ * Calculate the most specific selector in a list
+ */
+export declare function specificityOfMostSpecificListItem(nodes: Array<Node>, options?: CalculationOptions): {
+    a: number;
+    b: number;
+    c: number;
+};
+
+export { }

Frontend-Learner/node_modules/@csstools/selector-specificity/dist/index.mjs

@@ -0,0 +1 @@
+import e from"postcss-selector-parser";function compare(e,t){return e.a===t.a?e.b===t.b?e.c-t.c:e.b-t.b:e.a-t.a}function selectorSpecificity(t,s){const i=s?.customSpecificity?.(t);if(i)return i;if(!t)return{a:0,b:0,c:0};let c=0,n=0,o=0;if("universal"==t.type)return{a:0,b:0,c:0};if("id"===t.type)c+=1;else if("tag"===t.type)o+=1;else if("class"===t.type)n+=1;else if("attribute"===t.type)n+=1;else if(isPseudoElement(t))switch(t.value.toLowerCase()){case"::slotted":if(o+=1,t.nodes&&t.nodes.length>0){const e=specificityOfMostSpecificListItem(t.nodes,s);c+=e.a,n+=e.b,o+=e.c}break;case"::view-transition-group":case"::view-transition-image-pair":case"::view-transition-old":case"::view-transition-new":return t.nodes&&1===t.nodes.length&&"selector"===t.nodes[0].type&&selectorNodeContainsNothingOrOnlyUniversal(t.nodes[0])?{a:0,b:0,c:0}:{a:0,b:0,c:1};default:o+=1}else if(e.isPseudoClass(t))switch(t.value.toLowerCase()){case":-webkit-any":case":any":default:n+=1;break;case":-moz-any":case":has":case":is":case":matches":case":not":if(t.nodes&&t.nodes.length>0){const e=specificityOfMostSpecificListItem(t.nodes,s);c+=e.a,n+=e.b,o+=e.c}break;case":where":break;case":nth-child":case":nth-last-child":if(n+=1,t.nodes&&t.nodes.length>0){const i=t.nodes[0].nodes.findIndex((e=>"tag"===e.type&&"of"===e.value.toLowerCase()));if(i>-1){const a=e.selector({nodes:[],value:""});t.nodes[0].nodes.slice(i+1).forEach((e=>{a.append(e.clone())}));const r=[a];t.nodes.length>1&&r.push(...t.nodes.slice(1));const l=specificityOfMostSpecificListItem(r,s);c+=l.a,n+=l.b,o+=l.c}}break;case":local":case":global":t.nodes&&t.nodes.length>0&&t.nodes.forEach((e=>{const t=selectorSpecificity(e,s);c+=t.a,n+=t.b,o+=t.c}));break;case":host":case":host-context":if(n+=1,t.nodes&&t.nodes.length>0){const e=specificityOfMostSpecificListItem(t.nodes,s);c+=e.a,n+=e.b,o+=e.c}break;case":active-view-transition":case":active-view-transition-type":return{a:0,b:1,c:0}}else e.isContainer(t)&&t.nodes?.length>0&&t.nodes.forEach((e=>{const t=selectorSpecificity(e,s);c+=t.a,n+=t.b,o+=t.c}));return{a:c,b:n,c:o}}function specificityOfMostSpecificListItem(e,t){let s={a:0,b:0,c:0};return e.forEach((e=>{const i=selectorSpecificity(e,t);compare(i,s)<0||(s=i)})),s}function isPseudoElement(t){return e.isPseudoElement(t)}function selectorNodeContainsNothingOrOnlyUniversal(e){if(!e)return!1;if(!e.nodes)return!1;const t=e.nodes.filter((e=>"comment"!==e.type));return 0===t.length||1===t.length&&"universal"===t[0].type}export{compare,selectorSpecificity,specificityOfMostSpecificListItem};

Frontend-Learner/node_modules/@csstools/selector-specificity/package.json

@@ -0,0 +1,66 @@
+{
+	"name": "@csstools/selector-specificity",
+	"description": "Determine selector specificity with postcss-selector-parser",
+	"version": "5.0.0",
+	"contributors": [
+		{
+			"name": "Antonio Laguna",
+			"email": "antonio@laguna.es",
+			"url": "https://antonio.laguna.es"
+		},
+		{
+			"name": "Romain Menke",
+			"email": "romainmenke@gmail.com"
+		}
+	],
+	"license": "MIT-0",
+	"funding": [
+		{
+			"type": "github",
+			"url": "https://github.com/sponsors/csstools"
+		},
+		{
+			"type": "opencollective",
+			"url": "https://opencollective.com/csstools"
+		}
+	],
+	"engines": {
+		"node": ">=18"
+	},
+	"type": "module",
+	"main": "dist/index.cjs",
+	"module": "dist/index.mjs",
+	"exports": {
+		".": {
+			"import": {
+				"types": "./dist/index.d.ts",
+				"default": "./dist/index.mjs"
+			},
+			"require": {
+				"default": "./dist/index.cjs"
+			}
+		}
+	},
+	"files": [
+		"CHANGELOG.md",
+		"LICENSE.md",
+		"README.md",
+		"dist"
+	],
+	"peerDependencies": {
+		"postcss-selector-parser": "^7.0.0"
+	},
+	"scripts": {},
+	"homepage": "https://github.com/csstools/postcss-plugins/tree/main/packages/selector-specificity#readme",
+	"repository": {
+		"type": "git",
+		"url": "git+https://github.com/csstools/postcss-plugins.git",
+		"directory": "packages/selector-specificity"
+	},
+	"bugs": "https://github.com/csstools/postcss-plugins/issues",
+	"keywords": [
+		"css",
+		"postcss-selector-parser",
+		"specificity"
+	]
+}