Add extracted source directory and README navigation

extracted-source/node_modules/qrcode/lib/renderer/terminal/terminal.js

@@ -0,0 +1,49 @@
+// let Utils = require('./utils')
+
+exports.render = function (qrData, options, cb) {
+  const size = qrData.modules.size
+  const data = qrData.modules.data
+
+  // let opts = Utils.getOptions(options)
+
+  // use same scheme as https://github.com/gtanner/qrcode-terminal because it actually works! =)
+  const black = '\x1b[40m  \x1b[0m'
+  const white = '\x1b[47m  \x1b[0m'
+
+  let output = ''
+  const hMargin = Array(size + 3).join(white)
+  const vMargin = Array(2).join(white)
+
+  output += hMargin + '\n'
+  for (let i = 0; i < size; ++i) {
+    output += white
+    for (let j = 0; j < size; j++) {
+      // let topModule = data[i * size + j]
+      // let bottomModule = data[(i + 1) * size + j]
+
+      output += data[i * size + j] ? black : white// getBlockChar(topModule, bottomModule)
+    }
+    // output += white+'\n'
+    output += vMargin + '\n'
+  }
+
+  output += hMargin + '\n'
+
+  if (typeof cb === 'function') {
+    cb(null, output)
+  }
+
+  return output
+}
+/*
+exports.renderToFile = function renderToFile (path, qrData, options, cb) {
+  if (typeof cb === 'undefined') {
+    cb = options
+    options = undefined
+  }
+
+  let fs = require('fs')
+  let utf8 = exports.render(qrData, options)
+  fs.writeFile(path, utf8, cb)
+}
+*/