feat: line checking utils

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] == '/'; }

src/utils.hpp

@@ -0,0 +1,4 @@
+#include <string>
+
+bool isEmptyLine(std::string);
+bool isComment(std::string);