unnestcss/out/combine.js

Parse nested css

export const nestSelector = (sl, parent) => {
    if (sl.includes("&")) {
        return sl.replace(/&/g, parent || ":scope");
    }
    return parent ? parent + " " + sl : sl;
};
export const combineSelectors = (sl, parent) => {
    if (!parent) {
        return sl.map((s0) => nestSelector(s0));
    }
    return sl.map((s1) => parent.map((p1) => nestSelector(s1, p1))).flat();
};
export const combineAtRules = (...ats) => {
    const record = {};
    ats.forEach(({ name, params }) => {
        record[name] || (record[name] = []);
        record[name].push(params);
    });
    return Object.keys(record).map((name) => {
        const value = record[name];
        if (name === "layer") {
            return { name, params: value.join(".") };
        }
        return {
            name, params: value.join(" and ")
        };
    });
};
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