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- .pl66
- Tabspace utility for
- CP/M-80 Kermit (Kermit-80) support.
-
- I have written this utilty simply to help me. No other excuses.
-
- I am forever getting updates or new systems to add to the CP/M-80
- version of Kermit (Kermit-80) from folk who send me these updates
- via Electronic Mail. I am thankful that it is already in a
- machine readable form.
-
- However, our Mutton-head mainframe substitutes a single space
- character for every tab character it receives, so a lot of the
- submissions need considerable massaging before I can actually
- merge these additions to the rest of Kermit-80.
-
- Therefore, I issued Kermit-80 with all tabs replaced by spaces,
- in the hope that any further doantions have spaces instead of
- tabs. Unfortunately, this does not work in practice, and
- everyone is complaining about the size of the source files (often
- as much as 30% larger as a single tab character is now up to
- eight space characters!)
-
- So I wrote this program in the hope that people submitting stuff
- to me run their sources through this de-tabber to make my life
- easier.
-
- As a bonus, TABSAPACE will do the reverse, and replace spaces
- with tabs. With a couple of exceptions... (See below)
-
- To run the program, type TABSPACE and wait for the sign-on
- message ("Tabspace loaded, Version 1 22-Jan-87" for the time
- being). Tabspace will ask for the filename to be "massaged", and
- whether you want to expand or compress files (ie substitute
- spaces for tabs, or tabs for spaces respectively).
-
- Once started, it will plough through the file specified (if it
- exists) and apply the tabs/spaces replacement as required. It
- will also strip out any parity bits.
-
- Tabspace actually opens two files when it works: one input file
- of the type <filename>.<extention> as specified by you. The
- second is the same <filename> but with a $$$ extention.
-
- Once the file has been massaged, the original file will be
- deleted, and the .$$$ file renamed to your original file. This
- should be relatively safe, as you will not get to the stage of
- delete and rename if you have disk space or file closing
- problem. However, I suggest you try applying Tabspace to COPIES
- of your software!
-
- Couple of other points:
- Tabspace uses memory to buffer several logical 128 byte
- "sectors", both on read and writing. An equate for MAXRAM sets
- the maximum amount of memory available to Tabspace after CP/M and
- Tabspace itself have nabbed their memory, and is initally set to
- 16 Kbytes. (I reasoned that if you are going to run Kermit-80
- version 4.08 or later you should have at least this amount of
- free memory!) If you have more memory, you can adjust this to
- some larger value, say 52 for a 62k system (ie 62K - 8k (CP/M) -
- 2k (Tabspace) = 52k)
-
- I used the Public Domain assembler LASM to assemble Tabspace; I
- have no idea if any other assembles will work. Anyway, LASM is
- the ONLY assembler now used for Kermit-80 assembly.
-
- Tabspace will expand tabs after a semicolon in a comment field,
- but will not replace tabs for multiple spaces after a semicolon.
- I ran into som real problems early on, and decided that spaces in
- comment fields would be ok, so I left it in.
-
- Any comments or contributions for Tabspace and/or Kermit-80
- please send them to me (with tabs expanded!) as:
-
-
- OBSchou @ UK.AC.LOUGHBOROUGH.MULTICS or
-
- Kermit @ UK.AC.LOUGHBOROUGH.MULTICS or
-
- Bertil Schou,
- The Computer Centre,
- Loughborough Universirty of Technology,
- Loughborough,
- Leics. LE11 3TU or
-
- + 509 -222313 (Direct Dial)
-
-
-
- Many thanks for your co-operation,
-
- Bertil Schou.
-