wallet-core/node_modules/sha.js/hexpp.js
2017-05-03 15:35:00 +02:00

27 lines
736 B
JavaScript

function toHex (buf, group, wrap, LE) {
buf = buf.buffer || buf
var s = ''
var l = buf.byteLength || buf.length
for (var i = 0; i < l ; i++) {
var byteParam = (i & 0xfffffffc) | (!LE ? i % 4 : 3 - i % 4)
s += ((buf[byteParam] >> 4).toString(16)) +
((buf[byteParam] & 0xf).toString(16)) +
(group - 1 === i % group ? ' ' : '') +
(wrap - 1 === i % wrap ? '\n' : '')
}
return s
}
var hexpp = module.exports = function hexpp (buffer, opts) {
opts = opts || {}
opts.groups = opts.groups || 4
opts.wrap = opts.wrap || 16
return toHex(buffer, opts.groups, opts.wrap, opts.bigendian, opts.ints)
}
hexpp.defaults = function (opts) {
return function (b) {
return hexpp(b, opts)
}
}