From e488aad6da8bc6352bbf461b51f8c287ef6ac6f3 Mon Sep 17 00:00:00 2001
From: Hazem Krimi <krimihazem1@gmail.com>
Date: Fri, 22 Mar 2024 23:02:00 +0100
Subject: [PATCH] Remove whitespace and comments

---
 src/main.cpp |  4 +---
 src/parser.h | 46 +++++++++++++++++++++++++++++++++++++++++++---
 2 files changed, 44 insertions(+), 6 deletions(-)

diff --git a/src/main.cpp b/src/main.cpp
index ea7d61a..6eb6ab0 100644
--- a/src/main.cpp
+++ b/src/main.cpp
@@ -3,13 +3,11 @@
 
 using namespace std;
 
-int main(int argc, char *argv[])
+int main(int argc, char* argv[])
 {
     string path = argv[1];
-
     Parser parser(path);
 
     parser.printFile();
-
     return 0;
 }
\ No newline at end of file
diff --git a/src/parser.h b/src/parser.h
index 8898de9..2d979a9 100644
--- a/src/parser.h
+++ b/src/parser.h
@@ -1,6 +1,9 @@
-#include <string>
 #include <iostream>
+#include <string>
+#include <sstream>
+#include <regex>
 #include <fstream>
+#include <cctype>
 
 using namespace std;
 
@@ -8,20 +11,57 @@ class Parser
 {
 private:
     ifstream file;
+    string vmCode;
+
+    bool isEmptyLine(string text)
+    {
+        for (char c : text)
+        {
+            if (!isspace(c))
+                return false;
+        }
+
+        return true;
+    }
+
+    void removeCommentsAndWhitespace()
+    {
+        string text;
+        smatch matched;
+
+        while (getline(file, text))
+        {
+            if (regex_search(text, matched, regex("^(.*)?(\\/\\/.*)")) || isEmptyLine(text))
+            {
+                if (!isEmptyLine(matched[1])) {
+                    string command = matched[1];
+                    vmCode.append(command + '\n');
+                }
+                continue;
+            }
+            else
+            {
+                vmCode.append(text + '\n');
+            }
+        }
+    }
 
 public:
     Parser(string path)
     {
         file = ifstream(path);
+
+        removeCommentsAndWhitespace();
     }
 
     void printFile()
     {
+        stringstream vmCodeStream(vmCode);
         string text;
 
-        while (getline(file, text))
+        while (getline(vmCodeStream, text, '\n'))
         {
-            cout << text;
+            cout << text << endl;
         }
     }
 };