extractICSS.js
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extractICSS.js
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			const importPattern = /^:import$("[^"]"\|'[^']'\|[^"']+)$$/;
			const balancedQuotes = /^("[^"]"\|'[^']'\|[^"']+)$/;

			const getDeclsObject = (rule) => {
			const object = {};

			rule.walkDecls((decl) => {
			const before = decl.raws.before ? decl.raws.before.trim() : "";

			object[before + decl.prop] = decl.value;
			});

			return object;
			};
			/**
			*
			* @param {string} css
			* @param {boolean} removeRules
			* @param {'auto' \| 'rule' \| 'at-rule'} mode
			*/
			const extractICSS = (css, removeRules = true, mode = "auto") => {
			const icssImports = {};
			const icssExports = {};

			function addImports(node, path) {
			const unquoted = path.replace(/'\|"/g, "");
			icssImports[unquoted] = Object.assign(
			icssImports[unquoted] \|\| {},
			getDeclsObject(node)
			);

			if (removeRules) {
			node.remove();
			}
			}

			function addExports(node) {
			Object.assign(icssExports, getDeclsObject(node));
			if (removeRules) {
			node.remove();
			}
			}

			css.each((node) => {
			if (node.type === "rule" && mode !== "at-rule") {
			if (node.selector.slice(0, 7) === ":import") {
			const matches = importPattern.exec(node.selector);

			if (matches) {
			addImports(node, matches[1]);
			}
			}

			if (node.selector === ":export") {
			addExports(node);
			}
			}

			if (node.type === "atrule" && mode !== "rule") {
			if (node.name === "icss-import") {
			const matches = balancedQuotes.exec(node.params);

			if (matches) {
			addImports(node, matches[1]);
			}
			}
			if (node.name === "icss-export") {
			addExports(node);
			}
			}
			});

			return { icssImports, icssExports };
			};

			module.exports = extractICSS;