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/* This Source Code Form is subject to the terms of the Mozilla Public
* License, v. 2.0. If a copy of the MPL was not distributed with this
import { filterBase } from "./filters.mjs";
export const attemptPaddingMarginDestructuring = (token, originalVal) => {
if (
typeof originalVal !== "string" ||
originalVal.startsWith("calc(") ||
(!token.path.includes("padding") && !token.path.includes("margin")) ||
token.path.includes("@base")
) {
return undefined;
}
const parts = originalVal.split(/(?<!\([^\s]*)\s+/);
// return undefined if only 1 part
if (parts.length === 1) {
return undefined;
}
// throw if more than 4
if (parts.length > 4) {
throw new Error(
`[attemptPaddingMarginDestructuring] Too many parts in ${originalVal}`
);
}
// if 2 parts make object with block and inline keys
// if 3 parts with block-start, inline and block-end keys
// if 4 parts with block-start, inline-start, block-end and inline-end keys
const result = {};
if (parts.length === 2) {
result.block = parts[0];
result.inline = parts[1];
} else if (parts.length === 3) {
result.blockStart = parts[0];
result.inline = parts[1];
result.blockEnd = parts[2];
} else if (parts.length === 4) {
result.blockStart = parts[0];
result.inlineStart = parts[1];
result.blockEnd = parts[2];
result.inlineEnd = parts[3];
}
return Object.entries(result).map(([key, value]) => {
const copy = {
...token,
path: [...token.path, key].filter(filterBase),
name: [...token.path, key].filter(filterBase).join("/"),
value,
original: { ...token.original, value },
};
return { token: copy, originalVal: value };
});
};