bitmap-data-helpers

Convert single or bundled files between strings, buffers, files and dataURLs.

Currently only supports png images and zip bundles, nor can it identify errors.

API

charcode conversion

bin2str (string binaryString, number byteLength) : string textString (UTF16 encoding default)

str2bin (string textString) : string binaryString

buffer conversion

str2buf (string string, boolean decodingNeeded) : NodeBuffer buffer

buf2str (NodeBuffer buffer, string nodeEncodingKey) : string string

dataURL conversion

makeOne (NodeBuffer rawBuffer) : string dataURL

makeOneAsync (NodeBuffer rawBuffer) : object promise

unmakeOne (string dataURL, string nodeEncodingKey) : NodeBuffer buffer

mimeTypeOf (string dataURL) : string mimeType

addPrefixTo (string mimeType, string b64Body) : string dataURL

removePrefixFrom (string dataURL ) : string b64Body

zip

extractOne ( object jszipEntry, [function onProgress]) : object promise

batch zip operations

zip2url ( NodeBuffer b64ZippedBuffer ) : object dataURLCollection

zip2buf ( NodeBuffer b64ZippedBuffer ) : object bufferCollection

zip2list ( NodeBuffer b64ZippedBuffer ) : object zipEntryCollection

b64

encode ( string binaryString ) : string b64String

decode ( string b64String ) : string binaryString