From 7165bb7ae9e34e69d0c8802d6e356851cffe0f07 Mon Sep 17 00:00:00 2001
From: nasr <nsrddyn@gmail.com>
Date: Tue, 3 Mar 2026 20:05:11 +0000
Subject: feature(main): loading and printing csv file

---
 .gitignore                  |  1 +
 source/base/base_os.h       | 41 +++++++++++++----------------------------
 source/base/base_string.h   |  4 ++++
 source/engine/engine.c      | 33 ++++++++++++++++++++-------------
 source/storage/csv_reader.c |  9 +++++++++
 source/storage/csv_reader.h |  6 ++++++
 6 files changed, 53 insertions(+), 41 deletions(-)

diff --git a/.gitignore b/.gitignore
index 48a750d..8bebb0b 100644
--- a/.gitignore
+++ b/.gitignore
@@ -4,3 +4,4 @@ idea/*
 .idea
 /build
 /notes.txt
+/test
diff --git a/source/base/base_os.h b/source/base/base_os.h
index ec0a3de..23587c6 100644
--- a/source/base/base_os.h
+++ b/source/base/base_os.h
@@ -14,39 +14,24 @@ load_file(const char *path)
 {
     string8 result = {0};
     struct stat sbuf = {0};
-    int err = 0;
+
     i32 file = open(path, O_RDONLY);
+    if(file == -1) return result;
 
-    if(file)
+    if(fstat(file, &sbuf) == -1)
     {
+        print("error: fstat failed");
+        close(file);
+        return result;
+    }
 
-        if(file != -1)
-        {
-            err = fstat(file, &sbuf);
-            check(err != -1);
-
-            result.size = (u64)sbuf.st_size;
-
-            if(result.size !=  0)
-            {
-                result.data = (u8 *)mmap(0,
-                                         result.size,
-                                         PROT_READ,
-                                         MAP_PRIVATE,
-                                         file,
-                                         0);
-
-                check(result.data != MAP_FAILED);
-            }
-
-            close(file);
-        }
-        else
-        {
-           // TODO(nasr): logging
-        }
-
+    result.size = (u64)sbuf.st_size;
+    if(result.size != 0)
+    {
+        result.data = (u8 *)mmap(0, result.size, PROT_READ, MAP_PRIVATE, file, 0);
     }
+
+    close(file);
     return result;
 }
 
diff --git a/source/base/base_string.h b/source/base/base_string.h
index 941dc53..64a3162 100644
--- a/source/base/base_string.h
+++ b/source/base/base_string.h
@@ -9,6 +9,10 @@
  #define PushString(arena, size) \
     (string8){ (u8 *)PushArray((arena), u8, (size)), (u64)(size) }
 
+#define StringFmt "%.*s"
+#define ULongFmt  "%lu"
+#define ULLongFmt "%llu"
+
 typedef struct string8 string8;
 struct string8
 {
diff --git a/source/engine/engine.c b/source/engine/engine.c
index 609101e..ada4ecb 100644
--- a/source/engine/engine.c
+++ b/source/engine/engine.c
@@ -10,25 +10,32 @@
 #include "../repl/repl.h"
 #include "../repl/repl.c"
 
-int main(int c, char **v)
-{
-    mem_arena *global_arena = arena_create(MiB(1));
+#include "../storage/csv_reader.h"
+#include "../storage/csv_reader.c"
+
+#if 1
+#include <stdio.h>
+#endif
 
-    unused(c);
-    unused(v);
 
-    string8 buffer = PushString(global_arena, 5);
-    unused(buffer);
+int main(int c, char **v)
+{
+    if(c < 2) return -999;
 
+    string8 buffer = load_file(v[1]);
+    read_csv(buffer);
 
-    for (;;)
-    {
-        print("reading user input...");
-        // TODO(nasr): design a repl system
 
-        sleep(1);
-    }
+    // for(;;)
+    // {
+    //     print("reading user input...");
+    //     // TODO(nasr): design a repl system
+    //
+    //     sleep(1);
+    // }
+    //
 
+    return 0;
 }
 
 
diff --git a/source/storage/csv_reader.c b/source/storage/csv_reader.c
index e69de29..6023a3a 100644
--- a/source/storage/csv_reader.c
+++ b/source/storage/csv_reader.c
@@ -0,0 +1,9 @@
+#if 1
+#include <stdio.h>
+#endif
+
+internal void
+read_csv(string8 buffer)
+{
+    printf("\nsize:%lu\ndata %s\n", buffer.size, buffer.data);
+}
diff --git a/source/storage/csv_reader.h b/source/storage/csv_reader.h
index e69de29..29ac8ab 100644
--- a/source/storage/csv_reader.h
+++ b/source/storage/csv_reader.h
@@ -0,0 +1,6 @@
+#ifndef CSV_READER_H
+#define CSV_READER_H
+
+
+
+#endif /* CSV_READER_H */
-- 
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