script scope variables inexplicably becoming unset

[Peter Haworth]

Your code refers to chstk in one place and chcStk  in another.

Pete
lcSQL Software <http://www.lcsql.com>
Home of lcStackBrowser <http://www.lcsql.com/lcstackbrowser.html> and
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On Tue, Dec 30, 2014 at 10:20 AM, Dr. Hawkins <dochawk at gmail.com> wrote:

> I am having problems with script scope variables (declared local before any
> handler) becoming unset, apparently within individual lines of handlers.
>
> For example, the code
> on shwChcStk
>    ck "chstk: _" & chStk  & "_; " & cr & chStk is empty
>    if chStk is empty then
>       --debug only; this happens in the debugger.
>       answer "chStk empty"
>       breakpoint
>       initCtr
>    end if
>    if the chcStk of me then
>       lock messages --chStk becomes unset during openstack!
>       palette chStk
>       unlock messages
>       set the width of chStk to the width of chFld
>
> where ck is a logger:
>
> on ck stuff
>    --   answer stuff
>    --   breakpoint
>    put stuff
>    put stuff & cr after fld "log" of stack "ckwatch"
> end ck
>
> First it oddly produces simply "false" as the output, rather than
>
> _chStk_
> false
>
> If I comment out from &cr on it produces the first part.
>
> In any event, it can get to "if chStk" is empty with a value for chStk,
> open that stack as a pallete, and then have nothing in chStk or chFld  two
> lines later.
>
> But this isn't entirely predictable, either--if I remove the lock messages
> around the palette command, ckStk gets emptied every time, even though
> there is nothing in the  preOpenStack/OpenStack  handlers executes other
> than  logging of the milliseconds to a global,  checks for whether it is
> the main stack, and an exit.
>
> And the weirdness continues.
>
> In another section
>
>   ck the selectedChunk
>
> produced
>     word 5 to 4 of field 11
>
> the next line,
>
>    put the selectedChunk into pos
>
> put something like
>    char 10000 to 100007 of field 1
>
> Is the put statement into the message box or another field (of a closed
> stack) changing the selectedChunk ???
>
> THis is 7.0.1
>
>
> --
> Dr. Richard E. Hawkins, Esq.
> (702) 508-8462
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