Mapping does not work with some characters in KeyRemap4Macbook

Question

I want to map Option+Dot and Option+Comma to word-by-word movement in KeyRemap4Macbook. Option+Dot works but Option+Comma does not. Also using any other character such as W, V etc. instead of Comma does not work. They simply put the symbols normally mapped in keylayout file.

Here are the mapping items:

<item>
    <name>word movement right</name>
    <identifier>private.wordright</identifier>
    <autogen>
        --KeyToKey--
        KeyCode::COMMA,ModifierFlag::OPTION_L,
        KeyCode::CURSOR_RIGHT,ModifierFlag::OPTION_L
    </autogen>
</item>
<item>
    <name>word movement by option + dot</name>
    <identifier>private.wordmovement</identifier>
    <autogen>
        --KeyToKey--
        KeyCode::DOT,ModifierFlag::OPTION_L,
        KeyCode::CURSOR_LEFT,ModifierFlag::OPTION_L
    </autogen>
</item>

Answer 1

I found the cause of the problem. I have Turkish keyboard layout installed. The place of character comma corresponds to the place of character B in Turkish keyboard layout. The KeyCode definitions requires the character in the US keyboard layout.