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U2 and Vdos (was . . . .)

Carl I need to check for updates. At the moment U2 does something
annoying at startup -- opening up the keyboard file and leaving it on
screen but then seems to work fine to the relatively small extent I use it.

At 08/03/2015 01:45, you wrote:
Reply to note from Bill Troop Sun, 08 Mar 2015 00:54:03 +0000 Bill, > the one thing I would love in the VDOS environment is a fully > working JUMBO. - - Any news on that? It seems unfair that there > is something in VDOS which gives JUMBO trouble - - and it seems > that the VDOS people ought, if they can, to work it out. BigEdit is about the only thing in U2 that does not work properly under vDosXy. If you're aware of anything else, please report it here and I'll try to address it. In any event, I'm not convinced that any U2 issues, including BigEdit, originate with vDos per se; it's more the way in which vDos interacts with Windows that has to be accounted for in U2. (Jordan has reported problems with XyWrite's FIND command, and XyWrite's TREE command also doesn't work under vDosXy. These are indeed vDos compatibility problems, though I personally don't view them as earth-shaking.) I take your point about big files. Although Windows itself handles huge files (e.g. PAGEFILE.SYS), my experience is that Windows *applications* that claim to have no file-size limit often handle big files very slowly, if at all. U2's BigEdit handles this problem by chopping big files into 500KB chunks, each of which performs snappily in Xy4. When it's time to save edits, BigEdit handily stitches the chunks back into the original big file. (My BigEd works similarly. It uses John Walker's splits.exe https://www.fourmilab.ch/splits/ to break the original file into chunks.) The ability to browse/edit huge files is one of Xy4-'s advantages over many other editors. -- Carl Distefano cld@xxxxxxxx