From 5986a509e2c31bc8366dbf0902390a4ca84c3738 Mon Sep 17 00:00:00 2001
From: Hazem Krimi <me@hazemkrimi.tech>
Date: Thu, 26 Mar 2026 13:18:00 +0100
Subject: [PATCH] feat: parser initial scaffolding

---
 src/parser.cpp | 39 +++++++++++++++++++++++++++++++++++++++
 src/parser.hpp |  6 ++++++
 2 files changed, 45 insertions(+)
 create mode 100644 src/parser.cpp
 create mode 100644 src/parser.hpp

diff --git a/src/parser.cpp b/src/parser.cpp
new file mode 100644
index 0000000..eb713ff
--- /dev/null
+++ b/src/parser.cpp
@@ -0,0 +1,39 @@
+#include <iostream>
+#include <regex>
+#include <string>
+
+#include "parser.hpp"
+
+int parseCommand(LinkedList<Command> *commands, std::string line) {
+  std::smatch matched;
+
+  if (regex_search(line, matched, std::regex("^(.*) (.*) (.*)"))) {
+    Command cmd;
+    int err;
+
+    cmd.line = line;
+    cmd.type = commandTypes.at(matched[0]);
+    cmd.segment = segmentTypes.at(matched[1]);
+    cmd.index = std::stoi(matched[2]);
+
+    if ((err = insertNode(commands, cmd)) != 0) {
+      std::cerr << "Unexpected error parsing vm command:" << line << std::endl;
+      return 1;
+    }
+  }
+
+  if (regex_search(line, matched, std::regex("^(.*)"))) {
+    Command cmd;
+    int err;
+
+    cmd.line = line;
+    cmd.type = matched[0];
+
+    if ((err = insertNode(commands, cmd)) != 0) {
+      std::cerr << "Unexpected error parsing vm command:" << line << std::endl;
+      return 1;
+    }
+  }
+
+  return 0;
+}
diff --git a/src/parser.hpp b/src/parser.hpp
new file mode 100644
index 0000000..ab00850
--- /dev/null
+++ b/src/parser.hpp
@@ -0,0 +1,6 @@
+#include <string>
+
+#include "linked-list.hpp"
+#include "types.hpp"
+
+int parseCommand(LinkedList<Command> *, std::string);