40 lines
1,011 B
TypeScript
40 lines
1,011 B
TypeScript
export const normalizeAbsolutePath = (value?: string): string => {
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const trimmed = value?.trim();
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if (!trimmed) return "/";
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const normalizedInput = decodeURIComponent(trimmed).replace(/\\+/g, "/");
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const withLeadingSlash = normalizedInput.startsWith("/") ? normalizedInput : `/${normalizedInput}`;
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const parts = withLeadingSlash.split("/");
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const stack: string[] = [];
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for (const part of parts) {
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if (part === "" || part === ".") {
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continue;
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}
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if (part === "..") {
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if (stack.length > 0) {
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stack.pop();
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}
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} else {
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stack.push(part);
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}
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}
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let normalized = "/" + stack.join("/");
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if (!normalized || normalized === "." || normalized.startsWith("..")) {
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return "/";
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}
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const withoutTrailingSlash = normalized.replace(/\/+$/, "");
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if (!withoutTrailingSlash) {
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return "/";
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}
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const withSingleLeadingSlash = withoutTrailingSlash.startsWith("/")
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? `/${withoutTrailingSlash.replace(/^\/+/, "")}`
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: `/${withoutTrailingSlash}`;
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return withSingleLeadingSlash || "/";
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};
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