GLib.MarkupParseContext.prototype.get_position

function get_position(line_number: Number(gint), char_number: Number(gint)): void {
    // Gjs wrapper for g_markup_parse_context_get_position()
}
  

Retrieves the current line number and the number of the character on that line. Intended for use in error messages; there are no strict semantics for what constitutes the "current" line number other than "the best number we could come up with for error messages."