It appears that ED is aware of an active select list 0, even when it is not
using it. Interesting behavior - is this a bug or feature? Well, in
INFORMATION flavour accounts - at least!
In INFORMATION flavour, when you 'X' out, this appears to kill the active
select list 0. Hence, upon the next invocation of READNEXT, this will take
the ELSE clause, resulting in the termination of the loop.
As Adrian pointed out, UV account flavour does change the behavior of some
functions/statements. So this could be how it works in INFORMATION and
PI/Open accounts.
Hence, you can use "N", "Q" and "X" out, at least in INFORMATION flavour,
with this code fragment...
loop
readnext KEY
then execute "ED filename ":KEY
else exit
repeat
If the above doesn't work for you, try adding the following (note it may
have adverse effects on other EXECUTEs in your code) compiler option at the
top of your code.
$OPTIONS EXEC.EQ.PERF
Regards,
David
[EMAIL PROTECTED] wrote:
>
> John what is wrong with this approach
> loop
> readnext id else done = true
> until done do
> list<-1> = id
> repeat
> select list to mylist
> loop
> readnext id else done = true
> until done do
> execute "ed ":file:" ":id
> repeat
>
> then before, after, between the two loops you can do whatever you wanted
to do
> Will
That's close to what I did originally. The problem is that ED needs to
think that it is reading from a select list for the "X" command to work.
If I process the select list outside of ED, ED thinks it is working
against a single item and the only way you can exit the middle of a list
is with <crtl><C>.
-John
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