I've really only managed to look at Leo much once, and Edward was sitting next to me at the time.
Leo doesn't store Python code in a Leo document as any sort of embedded object that's labeled as Python code as far as I can tell (though it may in it's data model); it just more text, and can have @directives like any other text. I think this is inherently a risky approach to the data; there needs to be at least a way to say that some portion of
Hi Fred. Sitting next to you at the sprint was one of the most enlightening things I have done in a long time. I hope the next time we sprint together you'll be able to use Leo much more easily with cvs. I've spent that last six months on @thin, which should help a lot... the
data is some other text format embedded into the Leo document.
.leo files are XML files. The only thing that matters in that context is that the xml escapes are handled properly. What matters for the integrity of data in derived files is that uses don't mess with the so-called sentinel lines. These lines "carry" the outline structure. Destroy those lines, destroy something essential. Leo has a number of ways of recovering partially from such destruction, but the fact remains that uses insert, delete, fold or mutilate sentinel lines at their own risk. It's as simple as that. Sentinel lines start with #@ at present, and it's conceivable that they will always do so, even if @ gets used for something in Python.
I'm sure Edward can find a way to make things work for Leo users, but I hope the .leo files have some sort of format version indicator to make upgrading relatively easy for Leo users.
Actually, both .leo files and derived files have various format indicators. However, the format of .leo files hasn't changed significantly enough to need a new number in years. Allowing different lead-in strings for Leo directives will have absolutely no effect on the format of .leo files. Edward -------------------------------------------------------------------- Edward K. Ream email: edreamleo@charter.net Leo: Literate Editor with Outlines Leo: http://webpages.charter.net/edreamleo/front.html --------------------------------------------------------------------