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EXTRACT.DOC
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2000-06-30
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56 lines
For all you 8080 users, this program is in 8080 code.
EXTRACT is a program that allows a person to down load a '.LBR'
file in its entirety and then extract any part or all of it at his
leisure. One of the problems I encountered was down loading files,
then missing a critical one. I currently am running 8 floppy drives
and four hardisks, which created the necessity of extracting files to
different user numbers as well as different drives. EXTRACT allows
this from the command line. The format is the same that Compuview
uses in the "VPLUS" editor.
EXTRACT has a built in help function, to use just enter
"EXTRACT" and this will bring up the help menu.
The format for the command is drive colon, library file name
with an optional extent. If a extent isn't entered, the default is
".LBR". If the library file is under a different user, right after
the filename enter "=X" where "X" is the user number. Note, do not
enter a space after the file name. When the library file names is
entered, enter a space, followed by the optional drive name that the
files will go to, followed with the file name and extension. The
filename and extension can be any valid CP/M filename entry,
including wildcards. After this is entered, you can enter an optional
"=X" which will send the output to user number "X".
At the beginning of EXTRACT at location 103H is a flag for
automatic erasure of an existing output file. If this flag is equal
to a non zero value, the file will be automatically erased if it
exists before the file is extracted. If this flag is equal to zero,
you will be prompted before the file is erased. If you elect not to
erase the file, the file will not be extracted from the library.
AT location 104H in extract is the verbose flag. If this is set
to zero progress messages will be displayed as EXTRACT is running.
This program is free for anybody to use, but it is not for
resale. There is a trap in the program, if the copyright message
doesn't match the hidden one, EXTRACT will destroy itself. Just for
information purposes part of the message is executed during the
extraction of each file. There is a lot of error checking, so only a
deliberate changing of the copyright messages will cause this trap.
If any problems occur, leave a message under a file named
"HELP.GIL" and I will try to correct the problems. Note EXTRACT
signs on with a version number as well as date and time of
compulation. So when entering problems, include the version,
revision, date, and time.
Enjoy;
Gil Shultz