Question about include/exclude rules

[l.corbo at pronetics.it]

Hi all,
I'm trying to made a filtered backup of a windows PC.
My target is to create a recursive backup of "only" files reported in the
include/exclude files (i.e. only *.txt).
the rules (reported below) work well, but also create an empty folders
structure that I don'want.

Rsync works fine for me (the rules are reported below) except a point,
rsync create an empty folders structure that I don'want.

I'm trying to explain better.

Suppose that the source folder is:

./source/a.txt
./source/afolder
./source/afolder/b.txt
./source/afolder/c.doc
./source/bfolder/
./source/bfolder/a.doc
./source/bfolder/
./source/bfolder/cfolder/
./source/bfolder/cfolder/e.doc
 .
I used the following syntax:

rsync -avz --delete-excluded ./source/ ./dest  --exclude-from=exclude.txt

where the rules in the exclude.txt are:

+ *.txt
+ */
- *

rsync create in the dest folder:

./dest/a.txt
./dest/afolder
./dest/afolder/b.txt
./dest/bfolder/
./dest/bfolder/cfolder/

Please note if I omit the rules "+ */", I cannot fetch recursively the
folders and thus the ./source/afolder/b.txt file.
I misleading anything?
There is anyway to exclude the creation of the empty folders?

My environment is:
Win XP Pro SP2
rsync 2.6.4 (from cygwin)

Thanks in advantage,

Luca