'cmd /v:on' can't detect delay state ?

[Ed Dyreen]

Code: Select all

@echo off &setlocal disableDelayedExpansion
:: (
   set ^"@Delayed=( set "$NotDelayedFlag=!" ^&if defined $NotDelayedFlag ( echo.result : NotDelayed ) else echo.result : Delayed )"
   %@Delayed% &echo.correct: NotDelayed
   setlocal enableDelayedExpansion
   :: (
      %@Delayed% &echo.correct: Delayed
      echo.
      for /f "usebackq tokens=*" %%1 in ( `cmd /v:on /e:on /t:0B /q /c "!@Delayed!"` ) do echo.%%1
      echo.correct: Delayed
      for /f "usebackq tokens=*" %%1 in ( `cmd /v:off /e:on /t:0B /q /c "!@Delayed!"`) do echo.%%1
      echo.correct: NotDelayed
   :: )
   endlocal
:: )
endlocal

pause
exit

Code: Select all

result : NotDelayed
correct: NotDelayed
result : Delayed
correct: Delayed

result : NotDelayed
correct: Delayed
result : NotDelayed
correct: NotDelayed
Druk op een toets om door te gaan. . .

What the hell

[dbenham]

Ed - The IN() clause command is run within its own CMD context outside of the batch context. The parsing rules are different

Non-existent or ill-formed delayed expansion expressions are stripped out in a batch context, but they are left alone in a command line context. So the test can't work within a command in an IN() clause.

The above info is buried in http://stackoverflow.com/a/4095133/1012053

Dave Benham

[Ed Dyreen]

'
Thanks, that helps alot, I'm experimenting with running macro's in their own CMD session, and then interpreting the output that they print on con with for. To break macro's and have them interpreted by a "main" macro.

I first convert the linefeeds using a technique jeb explained to me
viewtopic.php?f=3&t=1827&start=60

Code: Select all

%cmdMacro_% @macro %= converts macro's to macro's that can be run through cmd =%
::
for /f "usebackq tokens=*" %%1 in ( `cmd /V:on /E:on /T:0B /q /c "!@macrocmd!"` ) do (
   ::
   echo.%%1
)