utilities

packages/utilities/.gitignore

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+node_modules
+package-lock.json
+yarn.lock
+*.result.css
+*.result.css.map
+*.result.html

packages/utilities/.nvmrc

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+v20.2.0

packages/utilities/CHANGELOG.md

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+# Changes to Utilities
+
+### Unreleased (major)
+
+- Initial version

packages/utilities/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.

packages/utilities/README.md

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+# Utilities
+
+[<img alt="npm version" src="https://img.shields.io/npm/v/@csstools/utilities.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]
+
+Helpers that we use in many PostCSS plugins.
+
+## API
+
+[Read the API docs](./docs/utilities.md)
+
+## Usage
+
+Add [Utilities] to your project:
+
+```bash
+npm install @csstools/utilities --save-dev
+```
+
+[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/utilities
+
+[Utilities]: https://github.com/csstools/postcss-plugins/tree/main/packages/utilities

packages/utilities/api-extractor.json

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+{
+	"$schema": "https://developer.microsoft.com/json-schemas/api-extractor/v7/api-extractor.schema.json",
+	"extends": "../../api-extractor.json",
+	"docModel": {
+		"enabled": true
+	}
+}

packages/utilities/dist/index.cjs

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+"use strict";exports.hasFallback=function hasFallback(t){const e=t.parent;if(!e)return!1;const r=t.prop.toLowerCase(),s=e.index(t);for(let t=0;t<s;t++){const s=e.nodes[t];if("decl"===s.type&&s.prop.toLowerCase()===r)return!0}return!1},exports.hasSupportsAtRuleAncestor=function hasSupportsAtRuleAncestor(t,e){let r=t.parent;for(;r;)if("atrule"===r.type&&"supports"===r.name.toLowerCase()){if(e.test(r.params))return!0;r=r.parent}else r=r.parent;return!1};

packages/utilities/dist/index.d.ts

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+import type { Declaration } from 'postcss';
+import type { Node } from 'postcss';
+
+/**
+ * Check if a declaration has a fallback.
+ * Returns true if a declaration with the same property name appears before the current declaration.
+ *
+ * @param {Declaration} node The declaration node to check
+ * @returns {boolean} Whether the declaration has a fallback
+ */
+export declare function hasFallback(node: Declaration): boolean;
+
+/**
+ * Check if a node has a `@supports` at-rule ancestor with a given regex in its params.
+ *
+ * @param {Node} node The node to check
+ * @param {{ test(str: string): boolean }} predicate The test to match against the `@supports` at-rule's params
+ * @returns {boolean}
+ */
+export declare function hasSupportsAtRuleAncestor(node: Node, predicate: {
+    test(str: string): boolean;
+}): boolean;
+
+export { }

packages/utilities/dist/index.mjs

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+function hasFallback(e){const t=e.parent;if(!t)return!1;const r=e.prop.toLowerCase(),o=t.index(e);for(let e=0;e<o;e++){const o=t.nodes[e];if("decl"===o.type&&o.prop.toLowerCase()===r)return!0}return!1}function hasSupportsAtRuleAncestor(e,t){let r=e.parent;for(;r;)if("atrule"===r.type&&"supports"===r.name.toLowerCase()){if(t.test(r.params))return!0;r=r.parent}else r=r.parent;return!1}export{hasFallback,hasSupportsAtRuleAncestor};

packages/utilities/docs/index.md

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+<!-- Do not edit this file. It is automatically generated by API Documenter. -->
+
+[Home](./index.md)
+
+## API Reference
+
+## Packages
+
+|  Package | Description |
+|  --- | --- |
+|  [@csstools/utilities](./utilities.md) |  |
+