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Johnson/Lister/!Lister/Docs/History

This website contains an archive of files for the Acorn Electron, BBC Micro, Acorn Archimedes, Commodore 16 and Commodore 64 computers, which Dominic Ford has rescued from his private collection of floppy disks and cassettes.

Some of these files were originally commercial releases in the 1980s and 1990s, but they are now widely available online. I assume that copyright over them is no longer being asserted. If you own the copyright and would like files to be removed, please contact me.

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                           !Lister history file
                      Written by Paul F. Johnson
                            10th February 1998

Introduction
------------

Yeah, another history file. Snore snore. Then, some people like to know how
a program was developed - so for you types, here it is!

Vsn no.
+++++++

1.21    - Changed the saveas routine so that the output file would always
          have the most up to date version number. This saves me a pile of
          time having to recode the save routine every time it is changed!

1.20    - Added help and history files and in program displayer. Added code
          to handle directories, applications and filetyped Archive (&DDC)
          so that it doesn't crash. Included a couple of error trappers
          and a warning system when the max number of scan files is
          reached

1.17    - Finalised the directory code and debugged the counter.

1.15    - Bug fixes and window redesigned. Added the first error trapper

1.13    - First usable version with drag and drop save box.

1.12    - Fully working version with save to an internal directory

1.10    - Version which worked, but had some nasty glitches (it could
          jump 10 on the counter without seeing that many files!)

1.08    - Bug fixes, more stable than 1.06, but not very good. Had a
          knack of crashing on save.

1.07    - Halfway house. It looked okay, but didn't do much. That said,
          coding up to this point was only 21 minutes!

1.04    - First compiled version. I know it should be given the version
          number 1.00, but I had been messing a lot with the code, and
          anyway, who wrote that rule!

1.00    - The beginning.

-------------

PFJ
18.1.98
00000000  20 20 20 20 20 20 20 20  20 20 20 20 20 20 20 20  |                |
00000010  20 20 20 20 20 20 20 20  20 20 20 21 4c 69 73 74  |           !List|
00000020  65 72 20 68 69 73 74 6f  72 79 20 66 69 6c 65 0a  |er history file.|
00000030  20 20 20 20 20 20 20 20  20 20 20 20 20 20 20 20  |                |
00000040  20 20 20 20 20 20 57 72  69 74 74 65 6e 20 62 79  |      Written by|
00000050  20 50 61 75 6c 20 46 2e  20 4a 6f 68 6e 73 6f 6e  | Paul F. Johnson|
00000060  0a 20 20 20 20 20 20 20  20 20 20 20 20 20 20 20  |.               |
00000070  20 20 20 20 20 20 20 20  20 20 20 20 20 31 30 74  |             10t|
00000080  68 20 46 65 62 72 75 61  72 79 20 31 39 39 38 0a  |h February 1998.|
00000090  0a 49 6e 74 72 6f 64 75  63 74 69 6f 6e 0a 2d 2d  |.Introduction.--|
000000a0  2d 2d 2d 2d 2d 2d 2d 2d  2d 2d 0a 0a 59 65 61 68  |----------..Yeah|
000000b0  2c 20 61 6e 6f 74 68 65  72 20 68 69 73 74 6f 72  |, another histor|
000000c0  79 20 66 69 6c 65 2e 20  53 6e 6f 72 65 20 73 6e  |y file. Snore sn|
000000d0  6f 72 65 2e 20 54 68 65  6e 2c 20 73 6f 6d 65 20  |ore. Then, some |
000000e0  70 65 6f 70 6c 65 20 6c  69 6b 65 20 74 6f 20 6b  |people like to k|
000000f0  6e 6f 77 20 68 6f 77 0a  61 20 70 72 6f 67 72 61  |now how.a progra|
00000100  6d 20 77 61 73 20 64 65  76 65 6c 6f 70 65 64 20  |m was developed |
00000110  2d 20 73 6f 20 66 6f 72  20 79 6f 75 20 74 79 70  |- so for you typ|
00000120  65 73 2c 20 68 65 72 65  20 69 74 20 69 73 21 0a  |es, here it is!.|
00000130  0a 56 73 6e 20 6e 6f 2e  0a 2b 2b 2b 2b 2b 2b 2b  |.Vsn no..+++++++|
00000140  0a 0a 31 2e 32 31 20 20  20 20 2d 20 43 68 61 6e  |..1.21    - Chan|
00000150  67 65 64 20 74 68 65 20  73 61 76 65 61 73 20 72  |ged the saveas r|
00000160  6f 75 74 69 6e 65 20 73  6f 20 74 68 61 74 20 74  |outine so that t|
00000170  68 65 20 6f 75 74 70 75  74 20 66 69 6c 65 20 77  |he output file w|
00000180  6f 75 6c 64 20 61 6c 77  61 79 73 0a 20 20 20 20  |ould always.    |
00000190  20 20 20 20 20 20 68 61  76 65 20 74 68 65 20 6d  |      have the m|
000001a0  6f 73 74 20 75 70 20 74  6f 20 64 61 74 65 20 76  |ost up to date v|
000001b0  65 72 73 69 6f 6e 20 6e  75 6d 62 65 72 2e 20 54  |ersion number. T|
000001c0  68 69 73 20 73 61 76 65  73 20 6d 65 20 61 20 70  |his saves me a p|
000001d0  69 6c 65 20 6f 66 0a 20  20 20 20 20 20 20 20 20  |ile of.         |
000001e0  20 74 69 6d 65 20 68 61  76 69 6e 67 20 74 6f 20  | time having to |
000001f0  72 65 63 6f 64 65 20 74  68 65 20 73 61 76 65 20  |recode the save |
00000200  72 6f 75 74 69 6e 65 20  65 76 65 72 79 20 74 69  |routine every ti|
00000210  6d 65 20 69 74 20 69 73  20 63 68 61 6e 67 65 64  |me it is changed|
00000220  21 0a 0a 31 2e 32 30 20  20 20 20 2d 20 41 64 64  |!..1.20    - Add|
00000230  65 64 20 68 65 6c 70 20  61 6e 64 20 68 69 73 74  |ed help and hist|
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00000250  20 70 72 6f 67 72 61 6d  20 64 69 73 70 6c 61 79  | program display|
00000260  65 72 2e 20 41 64 64 65  64 20 63 6f 64 65 0a 20  |er. Added code. |
00000270  20 20 20 20 20 20 20 20  20 74 6f 20 68 61 6e 64  |         to hand|
00000280  6c 65 20 64 69 72 65 63  74 6f 72 69 65 73 2c 20  |le directories, |
00000290  61 70 70 6c 69 63 61 74  69 6f 6e 73 20 61 6e 64  |applications and|
000002a0  20 66 69 6c 65 74 79 70  65 64 20 41 72 63 68 69  | filetyped Archi|
000002b0  76 65 20 28 26 44 44 43  29 0a 20 20 20 20 20 20  |ve (&DDC).      |
000002c0  20 20 20 20 73 6f 20 74  68 61 74 20 69 74 20 64  |    so that it d|
000002d0  6f 65 73 6e 27 74 20 63  72 61 73 68 2e 20 49 6e  |oesn't crash. In|
000002e0  63 6c 75 64 65 64 20 61  20 63 6f 75 70 6c 65 20  |cluded a couple |
000002f0  6f 66 20 65 72 72 6f 72  20 74 72 61 70 70 65 72  |of error trapper|
00000300  73 0a 20 20 20 20 20 20  20 20 20 20 61 6e 64 20  |s.          and |
00000310  61 20 77 61 72 6e 69 6e  67 20 73 79 73 74 65 6d  |a warning system|
00000320  20 77 68 65 6e 20 74 68  65 20 6d 61 78 20 6e 75  | when the max nu|
00000330  6d 62 65 72 20 6f 66 20  73 63 61 6e 20 66 69 6c  |mber of scan fil|
00000340  65 73 20 69 73 0a 20 20  20 20 20 20 20 20 20 20  |es is.          |
00000350  72 65 61 63 68 65 64 0a  0a 31 2e 31 37 20 20 20  |reached..1.17   |
00000360  20 2d 20 46 69 6e 61 6c  69 73 65 64 20 74 68 65  | - Finalised the|
00000370  20 64 69 72 65 63 74 6f  72 79 20 63 6f 64 65 20  | directory code |
00000380  61 6e 64 20 64 65 62 75  67 67 65 64 20 74 68 65  |and debugged the|
00000390  20 63 6f 75 6e 74 65 72  2e 0a 0a 31 2e 31 35 20  | counter...1.15 |
000003a0  20 20 20 2d 20 42 75 67  20 66 69 78 65 73 20 61  |   - Bug fixes a|
000003b0  6e 64 20 77 69 6e 64 6f  77 20 72 65 64 65 73 69  |nd window redesi|
000003c0  67 6e 65 64 2e 20 41 64  64 65 64 20 74 68 65 20  |gned. Added the |
000003d0  66 69 72 73 74 20 65 72  72 6f 72 20 74 72 61 70  |first error trap|
000003e0  70 65 72 0a 0a 31 2e 31  33 20 20 20 20 2d 20 46  |per..1.13    - F|
000003f0  69 72 73 74 20 75 73 61  62 6c 65 20 76 65 72 73  |irst usable vers|
00000400  69 6f 6e 20 77 69 74 68  20 64 72 61 67 20 61 6e  |ion with drag an|
00000410  64 20 64 72 6f 70 20 73  61 76 65 20 62 6f 78 2e  |d drop save box.|
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00000460  74 6f 72 79 0a 0a 31 2e  31 30 20 20 20 20 2d 20  |tory..1.10    - |
00000470  56 65 72 73 69 6f 6e 20  77 68 69 63 68 20 77 6f  |Version which wo|
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000004a0  73 20 28 69 74 20 63 6f  75 6c 64 0a 20 20 20 20  |s (it could.    |
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000004c0  20 74 68 65 20 63 6f 75  6e 74 65 72 20 77 69 74  | the counter wit|
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000004e0  20 6d 61 6e 79 20 66 69  6c 65 73 21 29 0a 0a 31  | many files!)..1|
000004f0  2e 30 38 20 20 20 20 2d  20 42 75 67 20 66 69 78  |.08    - Bug fix|
00000500  65 73 2c 20 6d 6f 72 65  20 73 74 61 62 6c 65 20  |es, more stable |
00000510  74 68 61 6e 20 31 2e 30  36 2c 20 62 75 74 20 6e  |than 1.06, but n|
00000520  6f 74 20 76 65 72 79 20  67 6f 6f 64 2e 20 48 61  |ot very good. Ha|
00000530  64 20 61 0a 20 20 20 20  20 20 20 20 20 20 6b 6e  |d a.          kn|
00000540  61 63 6b 20 6f 66 20 63  72 61 73 68 69 6e 67 20  |ack of crashing |
00000550  6f 6e 20 73 61 76 65 2e  0a 0a 31 2e 30 37 20 20  |on save...1.07  |
00000560  20 20 2d 20 48 61 6c 66  77 61 79 20 68 6f 75 73  |  - Halfway hous|
00000570  65 2e 20 49 74 20 6c 6f  6f 6b 65 64 20 6f 6b 61  |e. It looked oka|
00000580  79 2c 20 62 75 74 20 64  69 64 6e 27 74 20 64 6f  |y, but didn't do|
00000590  20 6d 75 63 68 2e 20 54  68 61 74 20 73 61 69 64  | much. That said|
000005a0  2c 0a 20 20 20 20 20 20  20 20 20 20 63 6f 64 69  |,.          codi|
000005b0  6e 67 20 75 70 20 74 6f  20 74 68 69 73 20 70 6f  |ng up to this po|
000005c0  69 6e 74 20 77 61 73 20  6f 6e 6c 79 20 32 31 20  |int was only 21 |
000005d0  6d 69 6e 75 74 65 73 21  0a 0a 31 2e 30 34 20 20  |minutes!..1.04  |
000005e0  20 20 2d 20 46 69 72 73  74 20 63 6f 6d 70 69 6c  |  - First compil|
000005f0  65 64 20 76 65 72 73 69  6f 6e 2e 20 49 20 6b 6e  |ed version. I kn|
00000600  6f 77 20 69 74 20 73 68  6f 75 6c 64 20 62 65 20  |ow it should be |
00000610  67 69 76 65 6e 20 74 68  65 20 76 65 72 73 69 6f  |given the versio|
00000620  6e 0a 20 20 20 20 20 20  20 20 20 20 6e 75 6d 62  |n.          numb|
00000630  65 72 20 31 2e 30 30 2c  20 62 75 74 20 49 20 68  |er 1.00, but I h|
00000640  61 64 20 62 65 65 6e 20  6d 65 73 73 69 6e 67 20  |ad been messing |
00000650  61 20 6c 6f 74 20 77 69  74 68 20 74 68 65 20 63  |a lot with the c|
00000660  6f 64 65 2c 20 61 6e 64  0a 20 20 20 20 20 20 20  |ode, and.       |
00000670  20 20 20 61 6e 79 77 61  79 2c 20 77 68 6f 20 77  |   anyway, who w|
00000680  72 6f 74 65 20 74 68 61  74 20 72 75 6c 65 21 0a  |rote that rule!.|
00000690  0a 31 2e 30 30 20 20 20  20 2d 20 54 68 65 20 62  |.1.00    - The b|
000006a0  65 67 69 6e 6e 69 6e 67  2e 0a 0a 2d 2d 2d 2d 2d  |eginning...-----|
000006b0  2d 2d 2d 2d 2d 2d 2d 2d  0a 0a 50 46 4a 0a 31 38  |--------..PFJ.18|
000006c0  2e 31 2e 39 38                                    |.1.98|
000006c5