Support importing code snippets

Allowing to keep code in separate files, which can be cleaner in a
quite a few scenarios

1 files changed, 20 insertions, 0 deletions

diff --git a/lib/parse/code_include.js b/lib/parse/code_include.js
new file mode 100644
index 0000000..f4656f1
--- /dev/null
+++ b/lib/parse/code_include.js
@@ -0,0 +1,20 @@
+var fs = require('fs');
+var path = require('path');
+
+module.exports = function(code, folder) {
+    folder = folder || '';
+
+    return code.replace(/{{([\s\S]+?)}}/g, function(match, filename) {
+        // Normalize filename
+        var fname = path.join(folder, filename.trim());
+
+        // Try including snippet from FS
+        try {
+            // Trim trailing newlines/space of imported snippets
+            return fs.readFileSync(fname, 'utf8').trimRight();
+        } catch(err) {}
+
+        // If fails leave content as is
+        return match;
+    });
+};