diff --git a/src/utils.cpp b/src/utils.cpp
new file mode 100644
index 0000000..4953966
--- /dev/null
+++ b/src/utils.cpp
@@ -0,0 +1,13 @@
+#include <cctype>
+#include <string>
+
+bool isEmptyLine(std::string line) {
+  for (char c : line) {
+    if (!isspace(c))
+      return false;
+  }
+
+  return true;
+}
+
+bool isComment(std::string line) { return line[0] == '/' && line[1] == '/'; }
diff --git a/src/utils.hpp b/src/utils.hpp
new file mode 100644
index 0000000..53cc254
--- /dev/null
+++ b/src/utils.hpp
@@ -0,0 +1,4 @@
+#include <string>
+
+bool isEmptyLine(std::string);
+bool isComment(std::string);