Ah, Right. Thanks for that input/reassurance Brian.
With kind regards
G.
----- Original Message -----
From: "Brian Hartgen" <jaws@xxxxxxxxxxx>
To: <jawsscripts@xxxxxxxxxxxxx>
Sent: Friday, February 09, 2018 6:24 PM
Subject: [jawsscripts] Re: Looping down a dynamic list
Hi
Yes you put the information in the user's default.jcf file.
I only learned about it a year or so ago when Glen Gordon at FS told me
about it as we were having a similar problem with a function.
-----Original Message-----
From: jawsscripts-bounce@xxxxxxxxxxxxx <jawsscripts-bounce@xxxxxxxxxxxxx>
On
Behalf Of Geoff Chapman
Sent: 09 February 2018 09:19
To: jawsscripts@xxxxxxxxxxxxx
Subject: [jawsscripts] Re: Looping down a dynamic list
Well! My Goodness! How *did* you find all these gold nuggets out Doug!
I've got a client at present whose experiencing a good deal of this jaws
going
silent then restarting itself at his workplace behaviour, resulting
apparently in multiple instances of JAWS in the system tray, and causing
him
subsequent greif.
And, ... now that this important topic has arisen,
, I'm seriously wondering whether it's likely to be one of my scripts
that's
causing this! It simply somehow never occurred to me before that it might
be! ... hmmm.
couple questions arise from this.
1. I'm presuming by the square bracketed section header around
[AutoRestart]
that this section must be created in the user default.jcf file then?
Is this correct?
2. if a dump file is created, will this actually point to the script that
may've been running/looping at the time of the AutoRestart?
3. I've just searched in the master default.jcf file in the Program Data
folder, and I sure didn't see the section there.
May I ask How did you thus learn about these commands?
I asked my Australian distributer/tech support here and they didn't seem
to
know of any way of stopping this from happening.
thanks for posting this!
And thanks to Jim for Throwing his info into the ring which resulted in
it's
un-Earthing!
With kind regards
Geoff.
----- Original Message -----
From: "Doug Lee" <doug.lee@xxxxxxxxxxxxxxx>
To: <jawsscripts@xxxxxxxxxxxxx>
Sent: Friday, February 09, 2018 5:37 PM
Subject: [jawsscripts] Re: Looping down a dynamic list
All true.+--------------------------------------------------------------------------+
Just to complete the picture though:
For years, JAWSKey+Windows+F4 has killed and restarted JAWS from infinite
loops, though a fair number of end users don't know about this command it
seems.
Also, there are apparently little-known settings to adjust the timeout
behavior you mention:
[AutoRestart]
; I believe changing this to 0 shuts off the automatic restart
completely.
Enable=1
; Number of seconds to wait before forcing a JAWS restart.
Delay=30
; Whether to create a dump file on restart.
CreateDumps=1
; A sound file to play on a restart. Might have to be a .wav file.
Sound=
Warning: I have not tested those since JAWS 17.
On Thu, Feb 08, 2018 at 09:52:32PM -0600, Snowman wrote:
one cool, and sometimes annoying feature, added in more recent jaws is a
requirement that a script exit, returning control back to the main loop
in
jaws, withing a fixed period of time, something like 30 seconds. In the
past, an infinte loop would lock up jaws completely, and the only option
was
a hard restart.
But now, if your script doesn't exit within 30 seconds or so, JAWS will
close down and then restart.
I'm not arguing against the use of safety counters. But, if you mess up
a
loop, and it turns out to be infinite, it will now get mercifully
terminated.
The other edge, of this double edged feature, causes problems if you
actually want to use jaws script to perform a long process.
HSC has some algorithms that due huge jobs, such as converting a large
amount of data from one form to another. Depending on the size of your
project, those jobs can sometimes take long enough to aggrivate this
timeout.
We couldn't get the job done in time. So, an alternative had to be
devised.
But, anyway, you at least can get control of your computer again now, in
case your loop is not coded properly, and is not guaranteed to terminate.
Listen to The Snowman on MushroomFM.com, Saturday evenings, 8PM Eastern
time.
60's and 70's tunes, and gently conservative talk.
----- Original Message -----
From: "Doug Lee" <doug.lee@xxxxxxxxxxxxxxx>
To: <jawsscripts@xxxxxxxxxxxxx>
Sent: Thursday, February 08, 2018 2:30 PM
Subject: [jawsscripts] Re: Looping down a dynamic list
Minor adjustment here:
The counter being used in some code samples in this thread is for safety.
If
the condition for loop exit is never met, this keeps JAWS from freezing.
It
is wise to use such safety counters in While loops to avoid freezes from
an infinite loop. In fact, I often call my counter "safety" :)
Such a counter should not change the operation of the loop otherwise.
On Thu, Feb 08, 2018 at 10:49:27AM -0700, Jackie McBride wrote:
Rod, what you'll want to do is something like this:
found = false
while !found
look for attribute
if attribute is found
let found = true
endwhile
Note that !found means while is not found. U can also say while found
== 0. Once found = true, the while loop will end of its own accord.
Counting numbers should not be included here--that's actually the
whole idea of a while loop. for-next loops are far better in that
latter case.
On 2/8/18, rodalcidonis@xxxxxxxxx <rodalcidonis@xxxxxxxxx> wrote:
Jonathan:
That's my error. In removing extra verbiage to get a sample code, I
removed
the line where I exitted the loop.
That being said though, the issue is that unlike in AHK, JAWS does not
have
a function to break out of the loop as you suggested. I have tried to
loop
with a conditional statement, but because the window doesn't change, I
have
gotten into an infinite loop.
I have tried to use a counter up to 100 as you suggested and that makes
things extra slow and I get random activation of other windows. This
code
was after I attempted to use what Bob has suggested, though
unsuccessfully
because I cannot exit out of it.
Initially I had
Icounter = 0
While Icounter < 20
Nexline()
code to get attribute
if iTakeAttributes == 1 ; the control is checked
Icounter = 20 ; exit loop I have reached my desired text
Nextline()()
Etc, etc.
Endif
Icounter = Icounter + 1
Endwhile
-----Original Message-----
From: Jonathan Cohn
Sent: Thursday, February 8, 2018 10:46 AM
To: jawsscripts@xxxxxxxxxxxxx
Subject: [jawsscripts] Re: Looping down a dynamic list
A quick skim of your code did not let me know what the success condition
is.
Also, I can???t remember if JAWS has a ???break??? or equivalent for
loops.
Essentially what his being suggested is that you use a while that will
stop
once the condition is found or you have gone through the entire code
set.
set MaxTries = 100
for i = 1 to MaxTries
if AtEnd then Return Null
elif ItemFound then Return ???Success???
else
; additional processing here
???
EndIf
EndWhile
SayString(???Something went wrong I tried all my attempts and never
failed
or
succeeded???)
So, you could wrap the above in its own function, or if there is an
equivalent of the C statement ???break??? to prematurely end loop
processing,
you could replace the return statements with assignments then the break
statement.
Essentially it is fine and even recommended that you do this type of
scanning with a counter but that you break out of the counter once you
know
the answer. That way you avoid hanging JAWS with an infinite loop.
HTH,
Jonathan
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Remember! Friends Help Friends Be Cybersafe
Jackie McBride
Helping Cybercrime Victims 1 Person at a Time
https://brighter-vision.com
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Doug Lee, Senior Accessibility Programmer
Level Access
mailto:Doug.Lee@xxxxxxxxxxxxxxx http://www.LevelAccess.com
"While they were saying among themselves it cannot be done,
it was done." --Helen Keller
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Doug Lee, Senior Accessibility Programmer
Level Access
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"While they were saying among themselves it cannot be done,
it was done." --Helen Keller
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