buffer_to.coffee.md

Convert a Buffer to other values

Imports

R = require 'ramda'

{add, compose, converge, curry, equals, identity, invoker, last, nth, pipe, replace, slice} = R

Helper functions

buffer_to_string = invoker 1, 'toString'

last_is_0 = pipe last, equals 0

strip_last_0 = R.when last_is_0, slice(0, -1)

buffer_to_ascii = pipe strip_last_0, buffer_to_string 'ascii'

swap_slashes = replace /\\/g, '/'

Exports

module.exports =
	ascii: buffer_to_ascii

	#char: R.compose String.fromCharCode, R.nth
	char: curry (index, buffer)->
		String.fromCharCode nth index, buffer

	file_path: pipe buffer_to_ascii, swap_slashes

	float: invoker 1, 'readFloatLE'

	int16: invoker 1, 'readInt16LE'

	label: curry (index, buffer)->
		compose(buffer_to_ascii, slice(index, index + 4))(buffer)
	# label: pipe(converge(slice, [identity, add(4)]), buffer_to_ascii)
	# label: compose(buffer_to_ascii, converge(slice, [identity, add(4)]))

	uint8: invoker 1, 'readUInt8'

	uint16: invoker 1, 'readUInt16LE'

	uint32: invoker 1, 'readUInt32LE'