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!AWJune94/Goodies/Zap/!Zap/3rdParty/LineEdHelp
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.
| Tape/disk: | Home » Archimedes archive » Archimedes World » AW-1994-06-Disc2.adf » Disk2Jun94 |
| Filename: | !AWJune94/Goodies/Zap/!Zap/3rdParty/LineEdHelp |
| Read OK: | ✔ |
| File size: | 2F98 bytes |
| Load address: | 0000 |
| Exec address: | 0000 |
File contents
LineEditor Module release 2.50:
===============================
Source, binaries and documentation Copyright (C) Oliver Betts, 1994.
This software is provided as is - it has been tested to a reasonable extent,
but probably has a few lurking bugs. I take no responsibility for any loss
or damage, directly or indirectly caused.
UNIX is a trademark of AT&T; 4DOS is a trademark of someone else.
Incidentally, I highly recommend 4DOS if you have to use DOS.
This module started out as some modifications to version 2.30 of Richard K.
Lloyd's LineEditor module, to make it work better with TaskWindows
(specifically to use the same *FX4 and *FX 220-228 settings as the Wimp).
However, RKL seems not to respond to email or snail mail, and so not having
his permission to release my modified version, I have entirely rewritten the
module. In doing so I have fixed a number of bugs which were in the original
and added a few extra features, some of which were inspired by tcsh (for
UNIX) and 4DOS (for DOS!).
I'm still actively working on this program, so watch out for new versions.
Please let me know if you find any bugs or problems (read this file first
though!). I'll release the source with future versions.
For a list of the key bindings, load the module and type "*Help Editor".
Random note: Ctrl-N is now mapped to Next-line (same as cursor down), so to
turn paged scrolling on, you need to type Ctrl-Q Ctrl-N. Similarly for
some other useful Ctrl-<letter> combinations. I'll probably add an option
to allow these bindings to be turned off at some point.
A few comments on use with !Zap (see also !Zap's !Help file):
* To use function keys and Control + key you need to type Ctrl-Q first to
"Quote" the key - otherwise !Zap will process the key. The cursor keys,
TAB and PageUp/PageDown are passed through and so don't need quoting.
* COPYing works - activated by the command COPY which is bound to COPY and
Shift-COPY by default.
* The TaskWindow module supplied with !Edit on RISC OS 2 Application Disc 1
(v 0.03) won't work with !Zap - you need the one supplied with the C/Asm
DDE (about 0.29) or above. 0.03 only works with !Edit 1.00 and not very
well.
Use with !Edit/!SrcEdit:
* !Edit TaskWindows don't "understand" the codes to move the cursor left
and right (&08 and &09) so things don't work terribly well. Also, the
code for a beep (&07) is ignored, so failing filename completions don't
beep.
* My version and RKL's seem to work equally well/badly (simple recall and
filename completion work okay).
* I don't think it's possible to work around not having VDU 8 - get !Zap if
you want to use TaskWindows much - it's much faster too!
Use with RISC OS 2:
* I've added code to versions 2.34 and above to read the task handles of
TaskWindows under RISC OS 2, so local history buffers should now work.
* The TaskWindow modules supplied with RISC OS 2 and the Acorn C DDE (0.03
and 0.29 anyway) have a problem - if the LineEditor is loaded, closing a
TaskWindow doesn't release the memory allocated to the task. This would
seem to be a TaskWindow bug [it occurs if you soft-load 0.03 or 0.29 with
RISC OS 3.1, and with RKL's version]. My best advice (other than to get
RISC OS 3.1) is to reduce the next slot before starting a TaskWindow and
not to close task windows that you might want again.
* There's a problem with the cursor keys producing symbols rather than being
interpreted as cursor keys with some setups under RISC OS 2. This seems
to be the fault of the TaskWindow module again (v 0.29 anyway).
Comments and suggestions are greatly encouraged - email will get a reply (if
I can get through), snail mail will eventually, but don't hold your breath.
If email bounces, I read the usenet group comp.sys.acorn regularly. Please
try to give as much detail as possible in bug-reports - steps to demonstrate
the bug from loading in the module are very helpful indeed.
Files in this release:
!ReadMe - this file
LineEditor - the module
Thanks to Andy Hayward, David Moore and Dom Symes for testing and comments.
Also to Clive Jones for suggesting how to find the current task's handle
under RISC OS 2 (though his idea didn't work ;) ).
Olly Betts, 1994.03.20
Internet email: olly@mantis.co.uk
Indirected snail mail: Olly Betts,
24 Morgans Road,
Hertford,
Herts,
SG13 8BS,
UK
Improvements/bugfixes over RKL's 2.30:
======================================
More TaskWindow compatible:
---------------------------
Changed to use same *FX4 and *FX 220-228 settings as Wimp, so using the
line editor in a TaskWindow doesn't screw up the cursor keys.
More values are stored in registers or blocks rather than absolute locations,
which greatly improves behaviour with multiple TaskWindows.
Each TaskWindow now has a separate currently-recalled-line pointer. If
Global history is on, when lines are deleted (by Shift-Insert, or when the
history buffer gets full), the pointers for each TaskWindow are adjusted
appropriately.
Function keys work separately in each TaskWindow.
You can't *RMKill the LineEditor module while a line is being entered.
Miscellaneous bugs fixed:
-------------------------
Ctrl-H performs backspace (RKL's interprets it as Ctrl-Delete and erases
the history).
R12 wasn't passed to readlinev - RKL had just hacked around this...
Backspace in overtype mode didn't delete characters on the screen.
RKL's gave incorrect underline cursor in non-BBC gap modes (eg MODE 17).
Escape now moves cursor to end of line before exiting.
You can now enter all top-bit-set characters; Eg With RKL's version, you
can't enter LOAD"�" (to type "�" hold down ALT and type 221 on the numeric
keypad, then release ALT - RKL's reads it as Shift-Insert).
Filename completion code now copes with DOSFS leafnames (eg AUTOEXEC/BAT)
(maximum leafname length increased from 11 to 15 chars).
RKL's used CMOS locations 37 and 38, but his !Trash also uses 38 - currently
I only use 6 bits of 37.
Other changes which I view as improvements:
-------------------------------------------
You can now have separate history buffers for each TaskWindow (controlled by
bit 0 of *Configure EdFlags). Ctrl-Delete wipes *current* history buffer;
*EraseHistory and Shift-Ctrl-Delete wipe *all* history buffers. When in
local buffer mode, *Recall and *EdStatus put a '*' by the last used buffer.
If the command was typed in using OS_ReadLine, this will be the "current"
buffer, but results may be less meaningful if the command is executed by a
program.
Added PageUp/PageDown to scroll through lines with start matching entered
line (also on shift-cursor-up/down) [like Instigator and cursor up/down on
4DOS].
Added Emacs-like bindings [some are from tcsh]:
Duplicating existing keys:
^A ^E start/end of line ^B ^F cursor left/right ^N ^P next/prev line
^D delete right
New actions:
^Q quote next key, ^T transpose, ^K delete to end of line
^@ place mark, ^X exchange cursor and mark (Emacs ^X ^X), ^W delete region
Added another style of filename completion (like 4DOS). Shift-Tab completes
fully on first match, then Shift-Tab and Ctrl-Shift-Tab step through other
matches.
Removed nasty hacky "Supervisor awareness" as it didn't work for RO 3.x or
at ShellCLI prompt (f12 from desktop). Replaced with better system (for
Acc.Fred[Tab] it looks first for "Acc.Fred*"; if that fails it then looks
for "Fred*" [on the assumption that Acc. is an abbreviated *-command]).
There is no limit on the number of lines in the history buffer, only on the
size of the buffer.
Doesn't display copyright message on start-up and reset.
Syntax messages added for commands.
Code doesn't bother trying to change cursor shape in TaskWindows (as VDU
sequences are ignored and only slow things up more).
The code is "lazier" about inserting and deleting characters during filename
completion - this gives a slight speed increase in TaskWindows.
My completion code doesn't insert delete characters into the keyboard buffer,
which might have caused problems if you pressed Shift or Ctrl at just the
wrong moment.
Module help messages compacted using OS dictionary.
Ctrl-L & HOME now redraw current line (bit like tcsh).
^J still behaves like RETURN but doesn't store line in history.
Doesn't do *Unset LineEditor$Dir (was done incorrectly for *EraseHistory for
example).
No swi-padding code as it is *not* needed (slightly faster and smaller).
Added option to assemble with less verbose help text.
Shortfalls compared to RKL's version:
=====================================
Changes to *Configure EdSize don't affect existing history buffer(s), but are
used for new buffers. I'm not sure if this is actually a shortfall or a
useful feature - may be fixed.
No wimp frontend (or is that an improvement?) - seriously, let me know if
you think a Wimp frontend is needed - I might write one if it's wanted...
Hasn't been tested with Arthur (the Archimedes OS before RISC OS) - I see no
reason why it shouldn't work, but this is programming...
Minor "feature" - *FX216,0 no longer stops current function key expansion
during OS_ReadLine, but this is no big deal really - it could be solved by
intersecting OS_Byte, but I can't see much point.
Possible future additional features:
====================================
Allocate filename completion buffers on-the-fly which'll remove a few
lingering potential reentrancy problems and allow us to cope with arbitrarily
long leafnames.
Doesn't work wonderfully in VDU5 mode [neither does RKL's] - maybe fix.
More *Conf. options, for example:
overtype on by default?
redisplay on ^L, Home, etc
Add Yank, Delete word and other actions.
Maybe allow user-defined key bindings.
Maybe add Ctrl-Page-Up/Down to scroll case sensitive.
Add completion of *-commands? (those implemented by modules through the table
pointed to by the header - can't deal with anyone intercepting `Unknown
*-command'. This usage is deprecated by the PRMs, but I think Econet has to
use it for *Pass, etc). We can also cope with aliases (look at Alias$*) and
files on Run$Path.
Maybe change the name (?)
If we allow the size of existing buffers to change, we should preserve as
much of the history as will fit in new size buffer.
As with RKL's, you can recall lines which have characters in which are
outside the range specified by R2 and R3 on entry to OS_ReadLine - the only
solutions I can see are to strip them out (not wonderful) or to only allow
recall if all chars in the range &20-&FF are allowed (this applies to
ShellCLI, BASIC, and GOS (TaskWindows)). The problem also applies to
filename completion. Ideas on this one are especially welcome.
Revision History:
=================
2.50 Pressing Tab/^I on an empty line incorrectly moved the cursor left one
character if a completion occured
Deleting left at the end of a recalled line didn't set the modified flag
With empty history, typing something and pressing PageUp recalled crap
Added 4DOS style filename completion: Shift-Tab completes fully, then
steps thru' completions - Shift-Ctrl-Tab steps backwards
Shift-Copy does the same as Copy (to match !Zap defaults)
Updated and tidied output from *Help Editor
2.40 Tidied up a little for release with !Zap 1.10
2.35 TaskWindow tracking workspace if now freed on soft-reset
If a claim for RMA fails, a beep is emitted and something sensible done
(start-up gives an error, a function key is ignored, starting a new
TaskWindow reverts to the default OS_ReadLine routine)
Fixed minor bug in filename expansion code (introduced in 2.34)
PageUp and PageDown now don't insert start line into the history
2.34 Fixed minor bug in filename completion code
Added code to find task handle for RISC OS 2 (easier than I thought)
Now marks "current" buffer with a '*' in *Recall and *EdStatus if
local history is in operation
Recoded filename completion to enter characters directly, rather than
via keyboard buffer
2.33 First beta release
00000000 4c 69 6e 65 45 64 69 74 6f 72 20 4d 6f 64 75 6c |LineEditor Modul| 00000010 65 20 72 65 6c 65 61 73 65 20 32 2e 35 30 3a 0a |e release 2.50:.| 00000020 3d 3d 3d 3d 3d 3d 3d 3d 3d 3d 3d 3d 3d 3d 3d 3d |================| 00000030 3d 3d 3d 3d 3d 3d 3d 3d 3d 3d 3d 3d 3d 3d 3d 0a |===============.| 00000040 0a 53 6f 75 72 63 65 2c 20 62 69 6e 61 72 69 65 |.Source, binarie| 00000050 73 20 61 6e 64 20 64 6f 63 75 6d 65 6e 74 61 74 |s and documentat| 00000060 69 6f 6e 20 43 6f 70 79 72 69 67 68 74 20 28 43 |ion Copyright (C| 00000070 29 20 4f 6c 69 76 65 72 20 42 65 74 74 73 2c 20 |) Oliver Betts, | 00000080 31 39 39 34 2e 0a 0a 54 68 69 73 20 73 6f 66 74 |1994...This soft| 00000090 77 61 72 65 20 69 73 20 70 72 6f 76 69 64 65 64 |ware is provided| 000000a0 20 61 73 20 69 73 20 2d 20 69 74 20 68 61 73 20 | as is - it has | 000000b0 62 65 65 6e 20 74 65 73 74 65 64 20 74 6f 20 61 |been tested to a| 000000c0 20 72 65 61 73 6f 6e 61 62 6c 65 20 65 78 74 65 | reasonable exte| 000000d0 6e 74 2c 0a 62 75 74 20 70 72 6f 62 61 62 6c 79 |nt,.but probably| 000000e0 20 68 61 73 20 61 20 66 65 77 20 6c 75 72 6b 69 | has a few lurki| 000000f0 6e 67 20 62 75 67 73 2e 20 20 49 20 74 61 6b 65 |ng bugs. I take| 00000100 20 6e 6f 20 72 65 73 70 6f 6e 73 69 62 69 6c 69 | no responsibili| 00000110 74 79 20 66 6f 72 20 61 6e 79 20 6c 6f 73 73 0a |ty for any loss.| 00000120 6f 72 20 64 61 6d 61 67 65 2c 20 64 69 72 65 63 |or damage, direc| 00000130 74 6c 79 20 6f 72 20 69 6e 64 69 72 65 63 74 6c |tly or indirectl| 00000140 79 20 63 61 75 73 65 64 2e 0a 0a 55 4e 49 58 20 |y caused...UNIX | 00000150 69 73 20 61 20 74 72 61 64 65 6d 61 72 6b 20 6f |is a trademark o| 00000160 66 20 41 54 26 54 3b 20 34 44 4f 53 20 69 73 20 |f AT&T; 4DOS is | 00000170 61 20 74 72 61 64 65 6d 61 72 6b 20 6f 66 20 73 |a trademark of s| 00000180 6f 6d 65 6f 6e 65 20 65 6c 73 65 2e 0a 49 6e 63 |omeone else..Inc| 00000190 69 64 65 6e 74 61 6c 6c 79 2c 20 49 20 68 69 67 |identally, I hig| 000001a0 68 6c 79 20 72 65 63 6f 6d 6d 65 6e 64 20 34 44 |hly recommend 4D| 000001b0 4f 53 20 69 66 20 79 6f 75 20 68 61 76 65 20 74 |OS if you have t| 000001c0 6f 20 75 73 65 20 44 4f 53 2e 0a 0a 54 68 69 73 |o use DOS...This| 000001d0 20 6d 6f 64 75 6c 65 20 73 74 61 72 74 65 64 20 | module started | 000001e0 6f 75 74 20 61 73 20 73 6f 6d 65 20 6d 6f 64 69 |out as some modi| 000001f0 66 69 63 61 74 69 6f 6e 73 20 74 6f 20 76 65 72 |fications to ver| 00000200 73 69 6f 6e 20 32 2e 33 30 20 6f 66 20 52 69 63 |sion 2.30 of Ric| 00000210 68 61 72 64 20 4b 2e 0a 4c 6c 6f 79 64 27 73 20 |hard K..Lloyd's | 00000220 4c 69 6e 65 45 64 69 74 6f 72 20 6d 6f 64 75 6c |LineEditor modul| 00000230 65 2c 20 74 6f 20 6d 61 6b 65 20 69 74 20 77 6f |e, to make it wo| 00000240 72 6b 20 62 65 74 74 65 72 20 77 69 74 68 20 54 |rk better with T| 00000250 61 73 6b 57 69 6e 64 6f 77 73 0a 28 73 70 65 63 |askWindows.(spec| 00000260 69 66 69 63 61 6c 6c 79 20 74 6f 20 75 73 65 20 |ifically to use | 00000270 74 68 65 20 73 61 6d 65 20 2a 46 58 34 20 61 6e |the same *FX4 an| 00000280 64 20 2a 46 58 20 32 32 30 2d 32 32 38 20 73 65 |d *FX 220-228 se| 00000290 74 74 69 6e 67 73 20 61 73 20 74 68 65 20 57 69 |ttings as the Wi| 000002a0 6d 70 29 2e 0a 0a 48 6f 77 65 76 65 72 2c 20 52 |mp)...However, R| 000002b0 4b 4c 20 73 65 65 6d 73 20 6e 6f 74 20 74 6f 20 |KL seems not to | 000002c0 72 65 73 70 6f 6e 64 20 74 6f 20 65 6d 61 69 6c |respond to email| 000002d0 20 6f 72 20 73 6e 61 69 6c 20 6d 61 69 6c 2c 20 | or snail mail, | 000002e0 61 6e 64 20 73 6f 20 6e 6f 74 20 68 61 76 69 6e |and so not havin| 000002f0 67 0a 68 69 73 20 70 65 72 6d 69 73 73 69 6f 6e |g.his permission| 00000300 20 74 6f 20 72 65 6c 65 61 73 65 20 6d 79 20 6d | to release my m| 00000310 6f 64 69 66 69 65 64 20 76 65 72 73 69 6f 6e 2c |odified version,| 00000320 20 49 20 68 61 76 65 20 65 6e 74 69 72 65 6c 79 | I have entirely| 00000330 20 72 65 77 72 69 74 74 65 6e 20 74 68 65 0a 6d | rewritten the.m| 00000340 6f 64 75 6c 65 2e 20 20 49 6e 20 64 6f 69 6e 67 |odule. In doing| 00000350 20 73 6f 20 49 20 68 61 76 65 20 66 69 78 65 64 | so I have fixed| 00000360 20 61 20 6e 75 6d 62 65 72 20 6f 66 20 62 75 67 | a number of bug| 00000370 73 20 77 68 69 63 68 20 77 65 72 65 20 69 6e 20 |s which were in | 00000380 74 68 65 20 6f 72 69 67 69 6e 61 6c 0a 61 6e 64 |the original.and| 00000390 20 61 64 64 65 64 20 61 20 66 65 77 20 65 78 74 | added a few ext| 000003a0 72 61 20 66 65 61 74 75 72 65 73 2c 20 73 6f 6d |ra features, som| 000003b0 65 20 6f 66 20 77 68 69 63 68 20 77 65 72 65 20 |e of which were | 000003c0 69 6e 73 70 69 72 65 64 20 62 79 20 74 63 73 68 |inspired by tcsh| 000003d0 20 28 66 6f 72 0a 55 4e 49 58 29 20 61 6e 64 20 | (for.UNIX) and | 000003e0 34 44 4f 53 20 28 66 6f 72 20 44 4f 53 21 29 2e |4DOS (for DOS!).| 000003f0 0a 0a 49 27 6d 20 73 74 69 6c 6c 20 61 63 74 69 |..I'm still acti| 00000400 76 65 6c 79 20 77 6f 72 6b 69 6e 67 20 6f 6e 20 |vely working on | 00000410 74 68 69 73 20 70 72 6f 67 72 61 6d 2c 20 73 6f |this program, so| 00000420 20 77 61 74 63 68 20 6f 75 74 20 66 6f 72 20 6e | watch out for n| 00000430 65 77 20 76 65 72 73 69 6f 6e 73 2e 0a 50 6c 65 |ew versions..Ple| 00000440 61 73 65 20 6c 65 74 20 6d 65 20 6b 6e 6f 77 20 |ase let me know | 00000450 69 66 20 79 6f 75 20 66 69 6e 64 20 61 6e 79 20 |if you find any | 00000460 62 75 67 73 20 6f 72 20 70 72 6f 62 6c 65 6d 73 |bugs or problems| 00000470 20 28 72 65 61 64 20 74 68 69 73 20 66 69 6c 65 | (read this file| 00000480 20 66 69 72 73 74 0a 74 68 6f 75 67 68 21 29 2e | first.though!).| 00000490 20 20 49 27 6c 6c 20 72 65 6c 65 61 73 65 20 74 | I'll release t| 000004a0 68 65 20 73 6f 75 72 63 65 20 77 69 74 68 20 66 |he source with f| 000004b0 75 74 75 72 65 20 76 65 72 73 69 6f 6e 73 2e 0a |uture versions..| 000004c0 0a 46 6f 72 20 61 20 6c 69 73 74 20 6f 66 20 74 |.For a list of t| 000004d0 68 65 20 6b 65 79 20 62 69 6e 64 69 6e 67 73 2c |he key bindings,| 000004e0 20 6c 6f 61 64 20 74 68 65 20 6d 6f 64 75 6c 65 | load the module| 000004f0 20 61 6e 64 20 74 79 70 65 20 22 2a 48 65 6c 70 | and type "*Help| 00000500 20 45 64 69 74 6f 72 22 2e 0a 0a 52 61 6e 64 6f | Editor"...Rando| 00000510 6d 20 6e 6f 74 65 3a 20 20 43 74 72 6c 2d 4e 20 |m note: Ctrl-N | 00000520 69 73 20 6e 6f 77 20 6d 61 70 70 65 64 20 74 6f |is now mapped to| 00000530 20 4e 65 78 74 2d 6c 69 6e 65 20 28 73 61 6d 65 | Next-line (same| 00000540 20 61 73 20 63 75 72 73 6f 72 20 64 6f 77 6e 29 | as cursor down)| 00000550 2c 20 73 6f 20 74 6f 0a 74 75 72 6e 20 70 61 67 |, so to.turn pag| 00000560 65 64 20 73 63 72 6f 6c 6c 69 6e 67 20 6f 6e 2c |ed scrolling on,| 00000570 20 79 6f 75 20 6e 65 65 64 20 74 6f 20 74 79 70 | you need to typ| 00000580 65 20 43 74 72 6c 2d 51 20 43 74 72 6c 2d 4e 2e |e Ctrl-Q Ctrl-N.| 00000590 20 20 53 69 6d 69 6c 61 72 6c 79 20 66 6f 72 0a | Similarly for.| 000005a0 73 6f 6d 65 20 6f 74 68 65 72 20 75 73 65 66 75 |some other usefu| 000005b0 6c 20 43 74 72 6c 2d 3c 6c 65 74 74 65 72 3e 20 |l Ctrl-<letter> | 000005c0 63 6f 6d 62 69 6e 61 74 69 6f 6e 73 2e 20 20 49 |combinations. I| 000005d0 27 6c 6c 20 70 72 6f 62 61 62 6c 79 20 61 64 64 |'ll probably add| 000005e0 20 61 6e 20 6f 70 74 69 6f 6e 0a 74 6f 20 61 6c | an option.to al| 000005f0 6c 6f 77 20 74 68 65 73 65 20 62 69 6e 64 69 6e |low these bindin| 00000600 67 73 20 74 6f 20 62 65 20 74 75 72 6e 65 64 20 |gs to be turned | 00000610 6f 66 66 20 61 74 20 73 6f 6d 65 20 70 6f 69 6e |off at some poin| 00000620 74 2e 0a 0a 41 20 66 65 77 20 63 6f 6d 6d 65 6e |t...A few commen| 00000630 74 73 20 6f 6e 20 75 73 65 20 77 69 74 68 20 21 |ts on use with !| 00000640 5a 61 70 20 28 73 65 65 20 61 6c 73 6f 20 21 5a |Zap (see also !Z| 00000650 61 70 27 73 20 21 48 65 6c 70 20 66 69 6c 65 29 |ap's !Help file)| 00000660 3a 0a 0a 2a 20 54 6f 20 75 73 65 20 66 75 6e 63 |:..* To use func| 00000670 74 69 6f 6e 20 6b 65 79 73 20 61 6e 64 20 43 6f |tion keys and Co| 00000680 6e 74 72 6f 6c 20 2b 20 6b 65 79 20 79 6f 75 20 |ntrol + key you | 00000690 6e 65 65 64 20 74 6f 20 74 79 70 65 20 43 74 72 |need to type Ctr| 000006a0 6c 2d 51 20 66 69 72 73 74 20 74 6f 0a 20 20 22 |l-Q first to. "| 000006b0 51 75 6f 74 65 22 20 74 68 65 20 6b 65 79 20 2d |Quote" the key -| 000006c0 20 6f 74 68 65 72 77 69 73 65 20 21 5a 61 70 20 | otherwise !Zap | 000006d0 77 69 6c 6c 20 70 72 6f 63 65 73 73 20 74 68 65 |will process the| 000006e0 20 6b 65 79 2e 20 20 54 68 65 20 63 75 72 73 6f | key. The curso| 000006f0 72 20 6b 65 79 73 2c 0a 20 20 54 41 42 20 61 6e |r keys,. TAB an| 00000700 64 20 50 61 67 65 55 70 2f 50 61 67 65 44 6f 77 |d PageUp/PageDow| 00000710 6e 20 61 72 65 20 70 61 73 73 65 64 20 74 68 72 |n are passed thr| 00000720 6f 75 67 68 20 61 6e 64 20 73 6f 20 64 6f 6e 27 |ough and so don'| 00000730 74 20 6e 65 65 64 20 71 75 6f 74 69 6e 67 2e 0a |t need quoting..| 00000740 0a 2a 20 43 4f 50 59 69 6e 67 20 77 6f 72 6b 73 |.* COPYing works| 00000750 20 2d 20 61 63 74 69 76 61 74 65 64 20 62 79 20 | - activated by | 00000760 74 68 65 20 63 6f 6d 6d 61 6e 64 20 43 4f 50 59 |the command COPY| 00000770 20 77 68 69 63 68 20 69 73 20 62 6f 75 6e 64 20 | which is bound | 00000780 74 6f 20 43 4f 50 59 20 61 6e 64 0a 20 20 53 68 |to COPY and. Sh| 00000790 69 66 74 2d 43 4f 50 59 20 62 79 20 64 65 66 61 |ift-COPY by defa| 000007a0 75 6c 74 2e 0a 0a 2a 20 54 68 65 20 54 61 73 6b |ult...* The Task| 000007b0 57 69 6e 64 6f 77 20 6d 6f 64 75 6c 65 20 73 75 |Window module su| 000007c0 70 70 6c 69 65 64 20 77 69 74 68 20 21 45 64 69 |pplied with !Edi| 000007d0 74 20 6f 6e 20 52 49 53 43 20 4f 53 20 32 20 41 |t on RISC OS 2 A| 000007e0 70 70 6c 69 63 61 74 69 6f 6e 20 44 69 73 63 20 |pplication Disc | 000007f0 31 0a 20 20 28 76 20 30 2e 30 33 29 20 77 6f 6e |1. (v 0.03) won| 00000800 27 74 20 77 6f 72 6b 20 77 69 74 68 20 21 5a 61 |'t work with !Za| 00000810 70 20 2d 20 79 6f 75 20 6e 65 65 64 20 74 68 65 |p - you need the| 00000820 20 6f 6e 65 20 73 75 70 70 6c 69 65 64 20 77 69 | one supplied wi| 00000830 74 68 20 74 68 65 20 43 2f 41 73 6d 0a 20 20 44 |th the C/Asm. D| 00000840 44 45 20 28 61 62 6f 75 74 20 30 2e 32 39 29 20 |DE (about 0.29) | 00000850 6f 72 20 61 62 6f 76 65 2e 20 20 30 2e 30 33 20 |or above. 0.03 | 00000860 6f 6e 6c 79 20 77 6f 72 6b 73 20 77 69 74 68 20 |only works with | 00000870 21 45 64 69 74 20 31 2e 30 30 20 61 6e 64 20 6e |!Edit 1.00 and n| 00000880 6f 74 20 76 65 72 79 0a 20 20 77 65 6c 6c 2e 0a |ot very. well..| 00000890 0a 55 73 65 20 77 69 74 68 20 21 45 64 69 74 2f |.Use with !Edit/| 000008a0 21 53 72 63 45 64 69 74 3a 0a 0a 2a 20 21 45 64 |!SrcEdit:..* !Ed| 000008b0 69 74 20 54 61 73 6b 57 69 6e 64 6f 77 73 20 64 |it TaskWindows d| 000008c0 6f 6e 27 74 20 22 75 6e 64 65 72 73 74 61 6e 64 |on't "understand| 000008d0 22 20 74 68 65 20 63 6f 64 65 73 20 74 6f 20 6d |" the codes to m| 000008e0 6f 76 65 20 74 68 65 20 63 75 72 73 6f 72 20 6c |ove the cursor l| 000008f0 65 66 74 0a 20 20 61 6e 64 20 72 69 67 68 74 20 |eft. and right | 00000900 28 26 30 38 20 61 6e 64 20 26 30 39 29 20 73 6f |(&08 and &09) so| 00000910 20 74 68 69 6e 67 73 20 64 6f 6e 27 74 20 77 6f | things don't wo| 00000920 72 6b 20 74 65 72 72 69 62 6c 79 20 77 65 6c 6c |rk terribly well| 00000930 2e 20 20 41 6c 73 6f 2c 20 74 68 65 0a 20 20 63 |. Also, the. c| 00000940 6f 64 65 20 66 6f 72 20 61 20 62 65 65 70 20 28 |ode for a beep (| 00000950 26 30 37 29 20 69 73 20 69 67 6e 6f 72 65 64 2c |&07) is ignored,| 00000960 20 73 6f 20 66 61 69 6c 69 6e 67 20 66 69 6c 65 | so failing file| 00000970 6e 61 6d 65 20 63 6f 6d 70 6c 65 74 69 6f 6e 73 |name completions| 00000980 20 64 6f 6e 27 74 0a 20 20 62 65 65 70 2e 0a 0a | don't. beep...| 00000990 2a 20 4d 79 20 76 65 72 73 69 6f 6e 20 61 6e 64 |* My version and| 000009a0 20 52 4b 4c 27 73 20 73 65 65 6d 20 74 6f 20 77 | RKL's seem to w| 000009b0 6f 72 6b 20 65 71 75 61 6c 6c 79 20 77 65 6c 6c |ork equally well| 000009c0 2f 62 61 64 6c 79 20 28 73 69 6d 70 6c 65 20 72 |/badly (simple r| 000009d0 65 63 61 6c 6c 20 61 6e 64 0a 20 20 66 69 6c 65 |ecall and. file| 000009e0 6e 61 6d 65 20 63 6f 6d 70 6c 65 74 69 6f 6e 20 |name completion | 000009f0 77 6f 72 6b 20 6f 6b 61 79 29 2e 0a 0a 2a 20 49 |work okay)...* I| 00000a00 20 64 6f 6e 27 74 20 74 68 69 6e 6b 20 69 74 27 | don't think it'| 00000a10 73 20 70 6f 73 73 69 62 6c 65 20 74 6f 20 77 6f |s possible to wo| 00000a20 72 6b 20 61 72 6f 75 6e 64 20 6e 6f 74 20 68 61 |rk around not ha| 00000a30 76 69 6e 67 20 56 44 55 20 38 20 2d 20 67 65 74 |ving VDU 8 - get| 00000a40 20 21 5a 61 70 20 69 66 0a 20 20 79 6f 75 20 77 | !Zap if. you w| 00000a50 61 6e 74 20 74 6f 20 75 73 65 20 54 61 73 6b 57 |ant to use TaskW| 00000a60 69 6e 64 6f 77 73 20 6d 75 63 68 20 2d 20 69 74 |indows much - it| 00000a70 27 73 20 6d 75 63 68 20 66 61 73 74 65 72 20 74 |'s much faster t| 00000a80 6f 6f 21 0a 0a 55 73 65 20 77 69 74 68 20 52 49 |oo!..Use with RI| 00000a90 53 43 20 4f 53 20 32 3a 0a 0a 2a 20 49 27 76 65 |SC OS 2:..* I've| 00000aa0 20 61 64 64 65 64 20 63 6f 64 65 20 74 6f 20 76 | added code to v| 00000ab0 65 72 73 69 6f 6e 73 20 32 2e 33 34 20 61 6e 64 |ersions 2.34 and| 00000ac0 20 61 62 6f 76 65 20 74 6f 20 72 65 61 64 20 74 | above to read t| 00000ad0 68 65 20 74 61 73 6b 20 68 61 6e 64 6c 65 73 20 |he task handles | 00000ae0 6f 66 0a 20 20 54 61 73 6b 57 69 6e 64 6f 77 73 |of. TaskWindows| 00000af0 20 75 6e 64 65 72 20 52 49 53 43 20 4f 53 20 32 | under RISC OS 2| 00000b00 2c 20 73 6f 20 6c 6f 63 61 6c 20 68 69 73 74 6f |, so local histo| 00000b10 72 79 20 62 75 66 66 65 72 73 20 73 68 6f 75 6c |ry buffers shoul| 00000b20 64 20 6e 6f 77 20 77 6f 72 6b 2e 0a 0a 2a 20 54 |d now work...* T| 00000b30 68 65 20 54 61 73 6b 57 69 6e 64 6f 77 20 6d 6f |he TaskWindow mo| 00000b40 64 75 6c 65 73 20 73 75 70 70 6c 69 65 64 20 77 |dules supplied w| 00000b50 69 74 68 20 52 49 53 43 20 4f 53 20 32 20 61 6e |ith RISC OS 2 an| 00000b60 64 20 74 68 65 20 41 63 6f 72 6e 20 43 20 44 44 |d the Acorn C DD| 00000b70 45 20 28 30 2e 30 33 0a 20 20 61 6e 64 20 30 2e |E (0.03. and 0.| 00000b80 32 39 20 61 6e 79 77 61 79 29 20 68 61 76 65 20 |29 anyway) have | 00000b90 61 20 70 72 6f 62 6c 65 6d 20 2d 20 69 66 20 74 |a problem - if t| 00000ba0 68 65 20 4c 69 6e 65 45 64 69 74 6f 72 20 69 73 |he LineEditor is| 00000bb0 20 6c 6f 61 64 65 64 2c 20 63 6c 6f 73 69 6e 67 | loaded, closing| 00000bc0 20 61 0a 20 20 54 61 73 6b 57 69 6e 64 6f 77 20 | a. TaskWindow | 00000bd0 64 6f 65 73 6e 27 74 20 72 65 6c 65 61 73 65 20 |doesn't release | 00000be0 74 68 65 20 6d 65 6d 6f 72 79 20 61 6c 6c 6f 63 |the memory alloc| 00000bf0 61 74 65 64 20 74 6f 20 74 68 65 20 74 61 73 6b |ated to the task| 00000c00 2e 20 20 54 68 69 73 20 77 6f 75 6c 64 0a 20 20 |. This would. | 00000c10 73 65 65 6d 20 74 6f 20 62 65 20 61 20 54 61 73 |seem to be a Tas| 00000c20 6b 57 69 6e 64 6f 77 20 62 75 67 20 5b 69 74 20 |kWindow bug [it | 00000c30 6f 63 63 75 72 73 20 69 66 20 79 6f 75 20 73 6f |occurs if you so| 00000c40 66 74 2d 6c 6f 61 64 20 30 2e 30 33 20 6f 72 20 |ft-load 0.03 or | 00000c50 30 2e 32 39 20 77 69 74 68 0a 20 20 52 49 53 43 |0.29 with. RISC| 00000c60 20 4f 53 20 33 2e 31 2c 20 61 6e 64 20 77 69 74 | OS 3.1, and wit| 00000c70 68 20 52 4b 4c 27 73 20 76 65 72 73 69 6f 6e 5d |h RKL's version]| 00000c80 2e 20 20 4d 79 20 62 65 73 74 20 61 64 76 69 63 |. My best advic| 00000c90 65 20 28 6f 74 68 65 72 20 74 68 61 6e 20 74 6f |e (other than to| 00000ca0 20 67 65 74 0a 20 20 52 49 53 43 20 4f 53 20 33 | get. RISC OS 3| 00000cb0 2e 31 29 20 69 73 20 74 6f 20 72 65 64 75 63 65 |.1) is to reduce| 00000cc0 20 74 68 65 20 6e 65 78 74 20 73 6c 6f 74 20 62 | the next slot b| 00000cd0 65 66 6f 72 65 20 73 74 61 72 74 69 6e 67 20 61 |efore starting a| 00000ce0 20 54 61 73 6b 57 69 6e 64 6f 77 20 61 6e 64 0a | TaskWindow and.| 00000cf0 20 20 6e 6f 74 20 74 6f 20 63 6c 6f 73 65 20 74 | not to close t| 00000d00 61 73 6b 20 77 69 6e 64 6f 77 73 20 74 68 61 74 |ask windows that| 00000d10 20 79 6f 75 20 6d 69 67 68 74 20 77 61 6e 74 20 | you might want | 00000d20 61 67 61 69 6e 2e 0a 0a 2a 20 54 68 65 72 65 27 |again...* There'| 00000d30 73 20 61 20 70 72 6f 62 6c 65 6d 20 77 69 74 68 |s a problem with| 00000d40 20 74 68 65 20 63 75 72 73 6f 72 20 6b 65 79 73 | the cursor keys| 00000d50 20 70 72 6f 64 75 63 69 6e 67 20 73 79 6d 62 6f | producing symbo| 00000d60 6c 73 20 72 61 74 68 65 72 20 74 68 61 6e 20 62 |ls rather than b| 00000d70 65 69 6e 67 0a 20 20 69 6e 74 65 72 70 72 65 74 |eing. interpret| 00000d80 65 64 20 61 73 20 63 75 72 73 6f 72 20 6b 65 79 |ed as cursor key| 00000d90 73 20 77 69 74 68 20 73 6f 6d 65 20 73 65 74 75 |s with some setu| 00000da0 70 73 20 75 6e 64 65 72 20 52 49 53 43 20 4f 53 |ps under RISC OS| 00000db0 20 32 2e 20 20 54 68 69 73 20 73 65 65 6d 73 0a | 2. This seems.| 00000dc0 20 20 74 6f 20 62 65 20 74 68 65 20 66 61 75 6c | to be the faul| 00000dd0 74 20 6f 66 20 74 68 65 20 54 61 73 6b 57 69 6e |t of the TaskWin| 00000de0 64 6f 77 20 6d 6f 64 75 6c 65 20 61 67 61 69 6e |dow module again| 00000df0 20 28 76 20 30 2e 32 39 20 61 6e 79 77 61 79 29 | (v 0.29 anyway)| 00000e00 2e 0a 0a 43 6f 6d 6d 65 6e 74 73 20 61 6e 64 20 |...Comments and | 00000e10 73 75 67 67 65 73 74 69 6f 6e 73 20 61 72 65 20 |suggestions are | 00000e20 67 72 65 61 74 6c 79 20 65 6e 63 6f 75 72 61 67 |greatly encourag| 00000e30 65 64 20 2d 20 65 6d 61 69 6c 20 77 69 6c 6c 20 |ed - email will | 00000e40 67 65 74 20 61 20 72 65 70 6c 79 20 28 69 66 0a |get a reply (if.| 00000e50 49 20 63 61 6e 20 67 65 74 20 74 68 72 6f 75 67 |I can get throug| 00000e60 68 29 2c 20 73 6e 61 69 6c 20 6d 61 69 6c 20 77 |h), snail mail w| 00000e70 69 6c 6c 20 65 76 65 6e 74 75 61 6c 6c 79 2c 20 |ill eventually, | 00000e80 62 75 74 20 64 6f 6e 27 74 20 68 6f 6c 64 20 79 |but don't hold y| 00000e90 6f 75 72 20 62 72 65 61 74 68 2e 20 0a 49 66 20 |our breath. .If | 00000ea0 65 6d 61 69 6c 20 62 6f 75 6e 63 65 73 2c 20 49 |email bounces, I| 00000eb0 20 72 65 61 64 20 74 68 65 20 75 73 65 6e 65 74 | read the usenet| 00000ec0 20 67 72 6f 75 70 20 63 6f 6d 70 2e 73 79 73 2e | group comp.sys.| 00000ed0 61 63 6f 72 6e 20 72 65 67 75 6c 61 72 6c 79 2e |acorn regularly.| 00000ee0 20 20 50 6c 65 61 73 65 0a 74 72 79 20 74 6f 20 | Please.try to | 00000ef0 67 69 76 65 20 61 73 20 6d 75 63 68 20 64 65 74 |give as much det| 00000f00 61 69 6c 20 61 73 20 70 6f 73 73 69 62 6c 65 20 |ail as possible | 00000f10 69 6e 20 62 75 67 2d 72 65 70 6f 72 74 73 20 2d |in bug-reports -| 00000f20 20 73 74 65 70 73 20 74 6f 20 64 65 6d 6f 6e 73 | steps to demons| 00000f30 74 72 61 74 65 0a 74 68 65 20 62 75 67 20 66 72 |trate.the bug fr| 00000f40 6f 6d 20 6c 6f 61 64 69 6e 67 20 69 6e 20 74 68 |om loading in th| 00000f50 65 20 6d 6f 64 75 6c 65 20 61 72 65 20 76 65 72 |e module are ver| 00000f60 79 20 68 65 6c 70 66 75 6c 20 69 6e 64 65 65 64 |y helpful indeed| 00000f70 2e 0a 0a 46 69 6c 65 73 20 69 6e 20 74 68 69 73 |...Files in this| 00000f80 20 72 65 6c 65 61 73 65 3a 0a 0a 21 52 65 61 64 | release:..!Read| 00000f90 4d 65 20 20 20 20 2d 20 74 68 69 73 20 66 69 6c |Me - this fil| 00000fa0 65 0a 4c 69 6e 65 45 64 69 74 6f 72 20 2d 20 74 |e.LineEditor - t| 00000fb0 68 65 20 6d 6f 64 75 6c 65 0a 0a 54 68 61 6e 6b |he module..Thank| 00000fc0 73 20 74 6f 20 41 6e 64 79 20 48 61 79 77 61 72 |s to Andy Haywar| 00000fd0 64 2c 20 44 61 76 69 64 20 4d 6f 6f 72 65 20 61 |d, David Moore a| 00000fe0 6e 64 20 44 6f 6d 20 53 79 6d 65 73 20 66 6f 72 |nd Dom Symes for| 00000ff0 20 74 65 73 74 69 6e 67 20 61 6e 64 20 63 6f 6d | testing and com| 00001000 6d 65 6e 74 73 2e 0a 41 6c 73 6f 20 74 6f 20 43 |ments..Also to C| 00001010 6c 69 76 65 20 4a 6f 6e 65 73 20 66 6f 72 20 73 |live Jones for s| 00001020 75 67 67 65 73 74 69 6e 67 20 68 6f 77 20 74 6f |uggesting how to| 00001030 20 66 69 6e 64 20 74 68 65 20 63 75 72 72 65 6e | find the curren| 00001040 74 20 74 61 73 6b 27 73 20 68 61 6e 64 6c 65 0a |t task's handle.| 00001050 75 6e 64 65 72 20 52 49 53 43 20 4f 53 20 32 20 |under RISC OS 2 | 00001060 28 74 68 6f 75 67 68 20 68 69 73 20 69 64 65 61 |(though his idea| 00001070 20 64 69 64 6e 27 74 20 77 6f 72 6b 20 3b 29 20 | didn't work ;) | 00001080 29 2e 0a 0a 4f 6c 6c 79 20 42 65 74 74 73 2c 20 |)...Olly Betts, | 00001090 31 39 39 34 2e 30 33 2e 32 30 0a 0a 49 6e 74 65 |1994.03.20..Inte| 000010a0 72 6e 65 74 20 65 6d 61 69 6c 3a 20 20 20 20 20 |rnet email: | 000010b0 20 20 20 20 6f 6c 6c 79 40 6d 61 6e 74 69 73 2e | olly@mantis.| 000010c0 63 6f 2e 75 6b 0a 0a 49 6e 64 69 72 65 63 74 65 |co.uk..Indirecte| 000010d0 64 20 73 6e 61 69 6c 20 6d 61 69 6c 3a 20 20 4f |d snail mail: O| 000010e0 6c 6c 79 20 42 65 74 74 73 2c 0a 20 20 20 20 20 |lly Betts,. | 000010f0 20 20 20 20 20 20 20 20 20 20 20 20 20 20 20 20 | | 00001100 20 20 20 32 34 20 4d 6f 72 67 61 6e 73 20 52 6f | 24 Morgans Ro| 00001110 61 64 2c 0a 20 20 20 20 20 20 20 20 20 20 20 20 |ad,. | 00001120 20 20 20 20 20 20 20 20 20 20 20 20 48 65 72 74 | Hert| 00001130 66 6f 72 64 2c 0a 20 20 20 20 20 20 20 20 20 20 |ford,. | 00001140 20 20 20 20 20 20 20 20 20 20 20 20 20 20 48 65 | He| 00001150 72 74 73 2c 0a 20 20 20 20 20 20 20 20 20 20 20 |rts,. | 00001160 20 20 20 20 20 20 20 20 20 20 20 20 20 53 47 31 | SG1| 00001170 33 20 38 42 53 2c 0a 20 20 20 20 20 20 20 20 20 |3 8BS,. | 00001180 20 20 20 20 20 20 20 20 20 20 20 20 20 20 20 55 | U| 00001190 4b 0a 0a 0a 49 6d 70 72 6f 76 65 6d 65 6e 74 73 |K...Improvements| 000011a0 2f 62 75 67 66 69 78 65 73 20 6f 76 65 72 20 52 |/bugfixes over R| 000011b0 4b 4c 27 73 20 32 2e 33 30 3a 0a 3d 3d 3d 3d 3d |KL's 2.30:.=====| 000011c0 3d 3d 3d 3d 3d 3d 3d 3d 3d 3d 3d 3d 3d 3d 3d 3d |================| * 000011e0 3d 0a 0a 4d 6f 72 65 20 54 61 73 6b 57 69 6e 64 |=..More TaskWind| 000011f0 6f 77 20 63 6f 6d 70 61 74 69 62 6c 65 3a 0a 2d |ow compatible:.-| 00001200 2d 2d 2d 2d 2d 2d 2d 2d 2d 2d 2d 2d 2d 2d 2d 2d |----------------| 00001210 2d 2d 2d 2d 2d 2d 2d 2d 2d 2d 0a 0a 43 68 61 6e |----------..Chan| 00001220 67 65 64 20 74 6f 20 75 73 65 20 73 61 6d 65 20 |ged to use same | 00001230 2a 46 58 34 20 61 6e 64 20 2a 46 58 20 32 32 30 |*FX4 and *FX 220| 00001240 2d 32 32 38 20 73 65 74 74 69 6e 67 73 20 61 73 |-228 settings as| 00001250 20 57 69 6d 70 2c 20 73 6f 20 75 73 69 6e 67 20 | Wimp, so using | 00001260 74 68 65 0a 6c 69 6e 65 20 65 64 69 74 6f 72 20 |the.line editor | 00001270 69 6e 20 61 20 54 61 73 6b 57 69 6e 64 6f 77 20 |in a TaskWindow | 00001280 64 6f 65 73 6e 27 74 20 73 63 72 65 77 20 75 70 |doesn't screw up| 00001290 20 74 68 65 20 63 75 72 73 6f 72 20 6b 65 79 73 | the cursor keys| 000012a0 2e 0a 0a 4d 6f 72 65 20 76 61 6c 75 65 73 20 61 |...More values a| 000012b0 72 65 20 73 74 6f 72 65 64 20 69 6e 20 72 65 67 |re stored in reg| 000012c0 69 73 74 65 72 73 20 6f 72 20 62 6c 6f 63 6b 73 |isters or blocks| 000012d0 20 72 61 74 68 65 72 20 74 68 61 6e 20 61 62 73 | rather than abs| 000012e0 6f 6c 75 74 65 20 6c 6f 63 61 74 69 6f 6e 73 2c |olute locations,| 000012f0 0a 77 68 69 63 68 20 67 72 65 61 74 6c 79 20 69 |.which greatly i| 00001300 6d 70 72 6f 76 65 73 20 62 65 68 61 76 69 6f 75 |mproves behaviou| 00001310 72 20 77 69 74 68 20 6d 75 6c 74 69 70 6c 65 20 |r with multiple | 00001320 54 61 73 6b 57 69 6e 64 6f 77 73 2e 0a 0a 45 61 |TaskWindows...Ea| 00001330 63 68 20 54 61 73 6b 57 69 6e 64 6f 77 20 6e 6f |ch TaskWindow no| 00001340 77 20 68 61 73 20 61 20 73 65 70 61 72 61 74 65 |w has a separate| 00001350 20 63 75 72 72 65 6e 74 6c 79 2d 72 65 63 61 6c | currently-recal| 00001360 6c 65 64 2d 6c 69 6e 65 20 70 6f 69 6e 74 65 72 |led-line pointer| 00001370 2e 20 20 49 66 0a 47 6c 6f 62 61 6c 20 68 69 73 |. 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