LEAVE quits btm

[David Marcus]

I have a DO loop inside an IFF. A LEAVE inside the DO is exiting my btm. This seems to have only started happening in the last week or so. Here is the file Foo.btm:

*setlocal
*unalias *
ver
do Filename in *
   echo %Filename
   leave
enddo
echo First loop done
iff isfile * then
   do Filename in *
      echo %Filename
      leave
   enddo
endiff
echo Second loop done

Here is the output:

C:\Sys\Bat>Foo.btm

TCC  28.02.17 x64   Windows 10 [Version 10.0.19043.1348]
7z.bak
First loop done
7z.bak

C:\Sys\Bat>

 

[vefatica]

It's OK in v27. I imaging it's a due to Rex's recent experimental fix for LEAVE inside IFF inside DO.

 

[rconn]

Fixed in build 18 (already uploaded).

 

[t.horstmann]

Hello,

I've almost the same problem.

For a number of years I've used TCC Version 13. Because of some restrictions I now have to upgrade. Therefore I'm currently evaluating the latest TCC version 28 . (Currently I use Win10Pro, 64Bit, Version 21H2.)

The following code worked fine with TCC 13 in many examples and for years. But since I've been testing TCC 28 there have been a few cases where it fails. I think the 'leave' jumps back to a wrong position of the batch file:

do ... [maybe forever]
  ...
  if [condition] leave
  ...
enddo

In some cases it has helped to write the following instead of the one above (the 'leave' is now bracketed):

do ... [maybe forever]
   ...
   if [condition] (leave)
   ...
enddo

But there's another case where this does not work completely. The TCC-Window terminates whithout any error-message, when the do-loop should be exited. The example in more details: (The do-loop waits, until a specified file appears.)

@echo off
*setlocal
*unalias *
pushd
...
iff [condition1] then
   ...
else
   iff [condition2] then
      ...
   else
      ...
      do forever
         delay 1
         if isfile [specified filename] leave
      enddo
   endiff
   ...
endiff
...

In the upper example, it is of no use at all to put the 'leave' in brackets. Only the following works properly:

@echo off
*setlocal
*unalias *
pushd
...
iff [condition1] then
   ...
else
   iff [condition2] then
      ...
   else
      ...
      do forever
         delay 1
         iff isfile [specified filename] then
            leave
         endiff
      enddo
   endiff
   ...
endiff
...

Ok, this works. But a large batch file becomes visually confusing.

Best regards

Thomas

 

[rconn]

For a number of years I've used TCC Version 13. Because of some restrictions I now have to upgrade. Therefore I'm currently evaluating the latest TCC version 28 . (Currently I use Win10Pro, 64Bit, Version 21H2.)

The following code worked fine with TCC 13 in many examples and for years. But since I've been testing TCC 28 there have been a few cases where it fails. I think the 'leave' jumps back to a wrong position of the batch file:

Try it with 28.02.18 (updated today).

 

[t.horstmann]

It works! Thank you very much!