DBTCLEAN.C

This was put together mostly to aid in zipping .DBT files.  I do not
claim to be a C programmer; I just write stuff in my spare time that
I find useful.

Memo files are in blocks of 512 bytes; the actual .DBF file contains
a pointer into the .DBT file.  Data is placed into the .DBT and a
CHR(26) is appended to it, this being the basis for this program's
operation.  This does, however, mean that no memos can contain binary
data.  I was disappointed in this; I thought I might be able to make
a neat E-mail system with memo fields for the baggage, but to no avail.

Anyway, this has been tested with dBASE III, Fox, and Clipper S87
memo fields.  I haven't dug into the 5.0 deeply enough to ensure
compatibility with it, but I have uploaded this knowing that there
are others out there like me supporting S87 applications who on
occaision need to download the data over a modem.  Suffice to say
that it shouldn't be used on 5.0 memo fields.

By changing the junk memory image (it is often the same junk) after
the CHR(26) to spaces, I found that .DBT files zip smaller because of
the redundant data.  It also makes comparing different versions of a
memo file easier.

None of the usual disclaimers, etc. -- you already know all that
stuff.  I offer this as a tool, as I have used it.  Many thanks to
the people at Sequiter Software, who have taught me so much about
xBase internals without even knowing it.

Have fun.  Any problems, contact me (Andrew Becker) at CIS
70523,3153.