File name
Commit message
Commit date
File name
Commit message
Commit date
File name
Commit message
Commit date
File name
Commit message
Commit date
File name
Commit message
Commit date
'use strict'
const statuses = require('../lib/statuses')
const supported = require('../lib/supported')
const browsers = require('./browsers').browsers
const versions = require('./browserVersions').browserVersions
const MATH2LOG = Math.log(2)
function unpackSupport(cipher) {
// bit flags
let stats = Object.keys(supported).reduce((list, support) => {
if (cipher & supported[support]) list.push(support)
return list
}, [])
// notes
let notes = cipher >> 7
let notesArray = []
while (notes) {
let note = Math.floor(Math.log(notes) / MATH2LOG) + 1
notesArray.unshift(`#${note}`)
notes -= Math.pow(2, note - 1)
}
return stats.concat(notesArray).join(' ')
}
function unpackFeature(packed) {
let unpacked = { status: statuses[packed.B], title: packed.C }
unpacked.stats = Object.keys(packed.A).reduce((browserStats, key) => {
let browser = packed.A[key]
browserStats[browsers[key]] = Object.keys(browser).reduce(
(stats, support) => {
let packedVersions = browser[support].split(' ')
let unpacked2 = unpackSupport(support)
packedVersions.forEach(v => (stats[versions[v]] = unpacked2))
return stats
},
{}
)
return browserStats
}, {})
return unpacked
}
module.exports = unpackFeature
module.exports.default = unpackFeature