Diffusion Open Access Compliance Check Tool (OACCT) (issn4frontend) Browse

rOACCT/node_modules/nanoid/index.cjs
49c99f97fe9aissn4frontend

index.cjs
View Options

			let crypto = require('crypto')
			let { urlAlphabet } = require('./url-alphabet/index.cjs')
			const POOL_SIZE_MULTIPLIER = 128
			let pool, poolOffset
			let fillPool = bytes => {
			if (!pool \|\| pool.length < bytes) {
			pool = Buffer.allocUnsafe(bytes * POOL_SIZE_MULTIPLIER)
			crypto.randomFillSync(pool)
			poolOffset = 0
			} else if (poolOffset + bytes > pool.length) {
			crypto.randomFillSync(pool)
			poolOffset = 0
			}
			poolOffset += bytes
			}
			let random = bytes => {
			fillPool((bytes -= 0))
			return pool.subarray(poolOffset - bytes, poolOffset)
			}
			let customRandom = (alphabet, defaultSize, getRandom) => {
			let mask = (2 << (31 - Math.clz32((alphabet.length - 1) \| 1))) - 1
			let step = Math.ceil((1.6 * mask * defaultSize) / alphabet.length)
			return (size = defaultSize) => {
			let id = ''
			while (true) {
			let bytes = getRandom(step)
			let i = step
			while (i--) {
			id += alphabet[bytes[i] & mask] \|\| ''
			if (id.length === size) return id
			}
			}
			}
			}
			let customAlphabet = (alphabet, size = 21) =>
			customRandom(alphabet, size, random)
			let nanoid = (size = 21) => {
			fillPool((size -= 0))
			let id = ''
			for (let i = poolOffset - size; i < poolOffset; i++) {
			id += urlAlphabet[pool[i] & 63]
			}
			return id
			}
			module.exports = { nanoid, customAlphabet, customRandom, urlAlphabet, random }