[udf-dlm-develop] Reading from multiple files [IMPORTANT]

[Eduardo S. <es...@la...>]

Folks,

Please be advised that UDF-DLM is completely broken with respect to
handling multiple files.  

Here are the problems:

  * 0.24 will not handle NEXT_FILE_STATUS.  It appears to work if
    you do multiple UDF_OPEN()s, but as I mentioned before, that
    is completely against my intent in writing this package.

  * 0.25 is even worse.  I tried to fix a bug in ImmImage, related
    to the fact that each record actually consists of 32 "read_drec()"
    calls but file_pos() seems to be able to position you smack in
    the middle of those 32 records.  The "fix" I implemented for
    this seems to have made things worse.

I don't know what else to say right now.  This is pretty critical
functionality that's missing, but I have no idea how to fix it.

Please, if you know *anything at all* about how UDF works, could you
drop me a line?  I need to know (1) how to position things properly
in UDF_OPEN, and (2) what to do with NEXT_FILE_STATUS.

Thanks in advance for your help.  Thanks also to Evelyn Lee and Harald 
Frey for bringing this to my attention.

^E