first commit of the recode

70% of the code was re-writter from scratch

file_utils.c

@@ -0,0 +1,50 @@
+#include <string.h>
+#include <stdlib.h>
+#include <stdio.h>
+
+#include "interpreter_states.h"
+
+#define MAX_LINE 1024
+
+size_t line_count = 0;
+int read_script(const char *filename, char ***buf, size_t *lines) {
+    FILE *script = fopen(filename, "r");
+    if (script == NULL) {
+        fprintf(stderr, "Could not open %s.\n", filename);
+        return 1;
+    }
+
+    char line[MAX_LINE];
+    while (fgets(line, sizeof(line), script) != NULL) {
+        size_t length = strlen(line);
+        if (line[length - 1] == '\n') {
+            line[length - 1] = '\0';
+        }
+        char *line_copy = strdup(line);
+        char **temp = realloc(*buf, (line_count + 1) * sizeof(char*));
+        if (temp == NULL) {
+            fprintf(stderr, "Error allocating memory.\n");
+            return 1;
+        }
+        *buf = temp;
+        (*buf)[line_count++] = line_copy;
+    }
+    if (line_count == 0) {
+        fprintf(stderr, "%s is an empty file.\n", filename);
+        return 1;
+    }
+
+    *lines = line_count;
+    fclose(script);
+    return 0;
+}
+
+void free_script(char **buf) {
+    if (!buf)
+        return;
+    for (size_t i = 0; i < line_count; ++i)
+        if (buf[i])
+            free(buf[i]);
+    free(buf);
+    free_state();
+}