Implement text output example in JavaScript.

Author: sheremetyev

js/cat-run.cmd

@@ -0,0 +1 @@
+node cat.js < ..\Test.json

js/cat.js

@@ -0,0 +1,29 @@
+var assert = require('assert');
+
+process.stdin.setEncoding('utf8');
+process.stdout.setEncoding('utf8');
+
+var input = '';
+
+process.stdin.on('data', function(data) { input += data; });
+process.stdin.on('end', function() { handleInput(); });
+process.stdin.resume();
+
+function handleInput() {
+  var root = JSON.parse(input);
+  assert.equal(root.shift(), 'text');
+
+  root.forEach(function(block) {
+    var blockType = block.shift();
+    var blockAttr = block.shift();
+
+    block.forEach(function(span) {
+      var spanType = span.shift();
+      assert(span.length, 1);
+      var text = span[0];
+      process.stdout.write(text);
+    });
+
+    process.stdout.write('\n\n');
+  });
+};