Add initial page parsing

(Split sections)

lib/page.js

@@ -0,0 +1,28 @@
+var _ = require('lodash');
+var marked = require('marked');
+
+
+// Split a page up into sections (lesson, exercises, ...)
+function splitSections(nodes) {
+    var section = [];
+
+    return _.reduce(nodes, function(sections, el) {
+        if(el.type === 'hr') {
+            sections.push(section);
+            section = [];
+        } else {
+            section.push(el);
+        }
+
+        return sections;
+    }, []).concat([section]); // Add remaining nodes
+}
+
+function parsePage(src) {
+    var nodes = marked.lexer(src);
+
+    return splitSections(nodes);
+}
+
+// Exports
+module.exports = parsePage;