node.js harfbuzz bindings
var fs = require('fs');
var ft = require('freetype2');
var face = {};
ft.New_Memory_Face(fs.readFileSync(process.argv[2]), 0, face);
face = face.face;
var ptSize = 70*64;
var device_hdpi = 72;
var device_vdpi = 72;
ft.Set_Char_Size(face, 0, ptSize, device_hdpi, device_vdpi );
var hb = require('harfbuzz');
var glyphs = hb(face.handle, "This is test text to shape");
console.log(glyphs);