GtkScintilla::brace_match

int brace_match(int position);

Get the character position of the complement of "{", "[", "("

$brace_pos = $scintilla->get_current_pos();
$char = $scintilla->get_char_at($brace_pos);
if (($char == '{') or ($char == '}')) // or...
    $other_pos = $scintilla->brace_match($brace_pos);