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filter.lzh
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FILTER.DOC
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1986-06-29
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Down load F.HEX. Next, use HC.COM (available in XA9) to convert it into
F.COM.
F.COM is a short, M/L utility, which gives you a great amount of
flexibility in dealing with files created on other computers, or files
created by the WordStar word processor. F.COM also contains a single disk
copy utility which works on any type of file.
When you first enter the program, you will be given a choice of 3 filters,
the single disk copy utility, and return to DOS.
A filter can be thought of as working the same way as the oil filter in
your car. What it does is add to, delete from, or change, the contents of
your file.
The 3 filters are:
1) CR/LF filter. This filter changes a single CR into a CR/LF. It is
used to change files down loaded from other computers (TRS 80 Model 100 (
the portable) and others) to the correct CR/LF combination.
2) General purpose ASCII filter. This filter removes the MSB (most
significant bit), converts CR into CR/LFs, and removes all control
characters except the TAB.
This filter has many uses. It can be used, depending on the file down
loaded and what you want to do with the file, to work with files created on
other computers.
This filter will also convert files created by the WordStar word processor
into a standard ASCII file.
3) WordStar filter. This filter converts a CR into CR/LFs, converts
CRs in the middle of a paragraph into soft CRs, and sets the MSB flag bit
on the left margin spaces. In other words, it converts a standard ASCII
file into a WordStar file.
This filter can be used to convert either down loaded files or standard
ASCII files into WordStar files, which can then be worked on by the
WordStar word processor.
When you select a filter, you will be asked for the name of a file to be
filtered (input file). Next you will be asked for the file name of the
output file. After you enter this, the program will create the output file
and filter the input file into it. After it has done this, it returns you
to the Main command menu, for your next choice.
- - - WARNING - - - Do not use the same file name for output as is used for
input. If you do, the file will be zeroed, and you will lose all the
information in the file.
Choice 4 is a single disk copy utility, which will work on any type of
file. This utility was included so that you can easily move the files from
one disk to another.
The capacity of the utility, with 1 pass is 57K. Any program smaller than
this will be moved in 1 pass. If the file is greater than 57K, 2 or more
passes will be necessory. The program will automatically prompt you for
each additional pass.
When you choose 4, you will be asked to insert the SOURCE disk. Do this,
and press any key. Next, you will be asked for the file name to be copied.
When you enter it, the program will load the file into memory, and prompt
you to insert the TARGET disk. Do this, and press any key. The program will
create a file on the TARGET disk, and load the file into it. When this is
done, you will be returned to the Main command menu.
If the file has not been completely transferred, you will be prompted for
SOURCE & TARGET disks until the file has been transferred.
The 5th choice, simply returns you to DOS. This is the correct way to leave
the program and will let you continue on with whatever task you are
involved with.
If any errors occur while using the program (entering the wrong file name,
etc.), the program will print an error message, and return you to the Main
command menu.
This program uses standard MS-DOS interrupts, meaning this program should
work on any MS-DOS 2.XX or higher. Which means, it probably will work on
the SANYO compatibles (IBM, etc.).
And finally, once you get the hang of using this program, you'll find that
it opens many horizons. You will be able to manipulate files from other
computers, and from WordStar, with ease!!!
Bob Jack
BJ85