Im trying to add code folding regular expressions for a templating language I use

Even if I pare it back to the most basic of examples, I cant seem to get it working..

{if (true)}

{foo}

{/if}

foldingStartMarker = '^\{if\}';

foldingStopMarker = '^\{\\if\}';

If I omit the closing } from the first line of code...

{if (true)

Then TM does show the code folding marker (odd since the regexp should require it?), but either way the code still doesn't fold

What am I missing?

Thanks