variables.c

gchar *_string_get_next_variable(gchar *string, gchar *variable, const size_t max_variable_size)
{
  gchar *end = NULL;
  gchar *start = g_strstr_len(string, max_variable_size, "$(");
  if(start)
  {
    end = g_strstr_len(start, max_variable_size, ")");
    if(end)
    {
      const int length = end - start + 2;
      g_strlcpy(variable, start, length);
      // the string in variable is null terminated
      end++;
    }
  }
  // fprintf(stderr, "_string_get_next_variable: splitted %s in variable %s and remainder %s\n", string, variable,
  // end);
  return end;
}