n REPEAT and END-REPEAT while replacing x by a1 and y by a2 in the first copy, x by b1 and y by b2 in the second, ...<br><br> <code>{%REPEAT} .. {%END-REPEAT}</code> <br> Removes the text between REPEAT and END-REPEAT (i.e. make exactly zero copies)<br><br> <code>{%COMPARE x =/&lt;&gt; y} .. {%END-COMPARE}</code> <br> Only inserts the text if x=y or x&lt;&gt;y. Its just comparing the trimmed text <br><br> <code>{%SPECIAL:foobar}</code> <br> Calls an external callback function with the value foobar<br><br> }