Token refactor and better logs

v0/log.h

@@ -19,4 +19,16 @@ void log_set_output(LogError* destination);
  */
 void log_error(const char* msg);
 
+/**
+ * Logs a pretty error with additional information about the line where the error occurred.
+ * 
+ * @param filename The name of the file where the error occurred.
+ * @param line_text The entire line of text where the error occurred.
+ * @param line The line number where the error occurred.
+ * @param from The column number where the error starts.
+ * @param to The column number where the error ends.
+ * @param msg The error message to log.
+ */
+void log_on_line(const char* filename, const char* line_text, int line, int from, int to, const char* msg);
+
 #endif