Integrating canopy (with a demo parser from the canopy docs)

lib/canopy-transform.js

@@ -0,0 +1,24 @@
+var through = require('through'),
+    canopy = require('canopy');
+
+module.exports = function(file) {
+  if (!/\.peg$/.test(file)) {
+    return through();
+  }
+
+  var data = '';
+
+  return through(
+    function(buf) {
+      data += buf;
+    },
+    function() {
+      try {
+        this.queue(String(canopy.compile(data)));
+      } catch(err) {
+        this.emit('error', err);
+      }
+      this.queue(null);
+    }
+  );
+};