Added a Journal.collect method to Python

This lets you run standard report queries against a Ledger journal and
get back a collection of postings, for example:

    import ledger

    journal = ledger.Journal("sample.dat")
    posts   = journal.collect("-M assets")
    for post in posts:
        print post.account

However, this code is not really working yet for a large variety of
reasons, having to do with object life-time, shallow copying, and lack
of reference counting where it should be.  For instance, calling
ledger.Journal().collect() fails because the temporary journal object is
destroyed and the collection now has a host of bad pointers.  Using "for
post in journal.collect()" fails too with other bad pointers.  And the
whole lot of it crashes on exit at the moment.

0 files changed, 0 insertions, 0 deletions