[TxMt] foldingStartMarker foldingStopMarker Question

Hi,

maybe someone is able to give me an hint (esp. regexp and grammar experts ;)

I'm writing a Language and I want to include TM's folding feature.

foldingStartMarker := each line which begins with '>' AND the next line does not begin with '>'

foldingStopMarker := each line which does not begin with '>' AND the next line begins with '>'

Fine.

I tried:

foldingStartMarker = '^>[^\n]*$(?!\n>)';

foldingStopMarker = '^[^>][^\n]*$(?=\n>)';

but it does not work. If I test these regexps in Find&Replace Dialog it works. What am I doing wrong? Or is this not possible?

Here's an example how it should look like:

v > foo ^ blabal

foofoo

v > foofoofoo blablabla blablabla blablabla blablabla ^ blablabla v > bla ^ foo

whereby 'v' := foldingStartMarker ; '^' := foldingStopMarker

Many thanks in advance,

--Hans