{"version":3,"file":"index.cjs","sources":["../index.js"],"sourcesContent":["const MAX_HEADER_LENGTH = 2000\nconst THROW_ON_MAX_HEADER_LENGTH_EXCEEDED = false\n\nfunction hasRel (x) {\n return x && x.rel\n}\n\nfunction intoRels (acc, x) {\n function splitRel (rel) {\n acc[rel] = Object.assign({}, x, { rel: rel })\n }\n\n x.rel.split(/\\s+/).forEach(splitRel)\n\n return acc\n}\n\nfunction createObjects (acc, p) {\n // rel=\"next\" => 1: rel 2: next\n const m = p.match(/\\s*(.+)\\s*=\\s*\"?([^\"]+)\"?/)\n if (m) acc[m[1]] = m[2]\n return acc\n}\n\nfunction parseLink (link) {\n try {\n const m = link.match(/]*)>(.*)/)\n const linkUrl = m[1]\n const parts = m[2].split(';')\n const qry = {}\n // The origin is unused but it's required to parse relative URLs\n const url = new URL(linkUrl, 'https://example.com')\n\n for (const [key, value] of url.searchParams) {\n qry[key] = value\n }\n\n parts.shift()\n\n let info = parts.reduce(createObjects, {})\n info = Object.assign({}, qry, info)\n info.url = linkUrl\n return info\n } catch {\n return null\n }\n}\n\nfunction checkHeader (linkHeader, options) {\n if (!linkHeader) return false\n\n options = options || {}\n const maxHeaderLength = options.maxHeaderLength || MAX_HEADER_LENGTH\n const throwOnMaxHeaderLengthExceeded = options.throwOnMaxHeaderLengthExceeded || THROW_ON_MAX_HEADER_LENGTH_EXCEEDED\n\n if (linkHeader.length > maxHeaderLength) {\n if (throwOnMaxHeaderLengthExceeded) {\n throw new Error('Input string too long, it should be under ' + maxHeaderLength + ' characters.')\n } else {\n return false\n }\n }\n return true\n}\n\nfunction parseLinkHeader (linkHeader, options) {\n if (!checkHeader(linkHeader, options)) return null\n\n return linkHeader.split(/,\\s*