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• .. (вверх)
• [DIR] ..
• [FILE] base-table.json
• [FILE] constants.js
• [FILE] index.js
• [FILE] int-table.js
• [FILE] print.js
• [FILE] util.js
• [FILE] varint-table.js

Просмотр файла: util.js

'use strict'
const varint = require('varint')
const { Buffer } = require('buffer')

module.exports = {
  numberToBuffer,
  bufferToNumber,
  varintBufferEncode,
  varintBufferDecode,
  varintEncode
}

function bufferToNumber (buf) {
  return parseInt(buf.toString('hex'), 16)
}

function numberToBuffer (num) {
  let hexString = num.toString(16)
  if (hexString.length % 2 === 1) {
    hexString = '0' + hexString
  }
  return Buffer.from(hexString, 'hex')
}

function varintBufferEncode (input) {
  return Buffer.from(varint.encode(bufferToNumber(input)))
}

function varintBufferDecode (input) {
  return numberToBuffer(varint.decode(input))
}

function varintEncode (num) {
  return Buffer.from(varint.encode(num))
}

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