From 964c7178a371f79123d54a43671375f5c0ceb7e4 Mon Sep 17 00:00:00 2001
From: A404M <ahmadmahmoudiprogrammer@gmail.com>
Date: Sat, 8 Feb 2025 08:54:04 +0330
Subject: better errors

---
 src/utils/log.c | 63 +++++++++++++++++++++++++++++++++++++++++++++++++++++++++
 1 file changed, 63 insertions(+)

(limited to 'src/utils/log.c')

diff --git a/src/utils/log.c b/src/utils/log.c
index f54394a..e84f3b4 100644
--- a/src/utils/log.c
+++ b/src/utils/log.c
@@ -1,8 +1,10 @@
 #include "log.h"
 
 #include <stdarg.h>
+#include <stdint.h>
 #include <stdio.h>
 #include <stdlib.h>
+#include <string.h>
 
 void _printLogBack(const char *format, const char *file, int line, ...) {
   va_list args;
@@ -13,3 +15,64 @@ void _printLogBack(const char *format, const char *file, int line, ...) {
   printf("\e[0;31mError: %s at compiler %s:%d\e[0m\n", errorStr, file, line);
   free(errorStr);
 }
+
+extern char **fileCodes;
+extern const char **fileCodes_names;
+extern size_t fileCodes_length;
+
+void _printErrorBack(const char *format, const char *file, int line,
+                     char *begin, char *end, ...) {
+  va_list args;
+  va_start(args, end);
+  char *errorStr;
+  vasprintf(&errorStr, format, args);
+
+  size_t file_index = SIZE_MAX;
+  for (size_t i = 0; i < fileCodes_length; ++i) {
+    char *fileCode_begin = fileCodes[i];
+    char *fileCode_end = fileCodes[i] + strlen(fileCodes[i]);
+    if (begin >= fileCode_begin && end <= fileCode_end) {
+      file_index = i;
+      break;
+    }
+  }
+
+  const char firstColor[] = "\e[0;36m";
+  const char secondColor[] = "\e[0;31m";
+  fprintf(stderr, "%sError: %s at compiler %s:%d\e[0m\n", firstColor, errorStr,
+          file, line);
+  free(errorStr);
+
+  if (file_index == SIZE_MAX) {
+    return;
+  }
+
+  size_t file_line = 1;
+  char *file_line_begin = fileCodes[file_index];
+  char *file_line_end = fileCodes[file_index];
+  for (char *iter = fileCodes[file_index]; *iter != '\0'; ++iter) {
+    if (*iter == '\n') {
+      if (iter <= begin) {
+        file_line_begin = iter + 1;
+      } else if (iter >= end) {
+        file_line_end = iter;
+      }
+      if (iter <= end) {
+        ++file_line;
+      }
+    }
+  }
+
+  fprintf(stderr, "\e%sAt %s:%ld\n", firstColor, fileCodes_names[file_index],
+          file_line);
+
+  for (char *iter = file_line_begin; iter < file_line_end; ++iter) {
+    if (iter == begin) {
+      fprintf(stderr, "%s", secondColor);
+    } else if (iter == end) {
+      fprintf(stderr, "%s", firstColor);
+    }
+    fprintf(stderr, "%c", *iter);
+  }
+  fprintf(stderr, "\e[0m");
+}
-- 
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