{#define tt/x=<tt>x</tt>}\
{#define alma=szilva}\
{#define apple=alma}\
{tt|{#[}{apple}{#]}}
{#verbatim tt|{#[}{apple}{#]}}
{@verbatim tt|{#[}{apple}{#]}}
{tt|{@null {#[}{apple}{#]}}{#define apple=jabloko}}