Compound IFF Statement

[samintz]

I cannot get this compound IFF statement to work.

iff (%fPersist == 1 .and. %fDel == 1) .or. ^
    ("%drive2" != "" .and. %fDel == 1) .or. ^
    ("%drive1" == "" .and. (%fDel==1 .or. %fPersist==1)) then
    goto :usage
endiff

Implemented as 3 statements it works correctly

iff %fPersist == 1 .and. %fDel == 1 then
    goto :usage
endiff
iff "%drive2" != "" .and. %fDel == 1 then
    goto :usage
endiff
iff    "%drive1" == "" .and. (%fDel==1 .or. %fPersist==1) then
    goto :usage
endiff

 

[samintz]

The idea behind the checks is I have a command line:

PSUBST [drive1: [drive2:]path] [/P]
PSUBST drive1: /D | /P

I cannot have both /D and /P specified
if drive2 has been given, then /D is not allowed
if /D or /P is given, then drive1 cannot be blank.

Looks like I missed one too. if drive2 is missing, then either /P or /D must be present

 

[rconn]

Seems to be working OK here. What are the arguments you're passing when you see it fail?

 

[vefatica]

The construction of the command seems OK. This similar BTM looks like it dies the right things.

v:\> type ifftest.btm
iff (%1 == 1 .and. %2 == 1) .or. ^
  ("%4" != "" .and. %2 == 1) .or. ^
  ("%3" == "" .and. (%1==1 .or. %2==1)) then
  echo foo
endiff

v:\> ifftest.btm 1 1
foo

v:\> ifftest.btm 0 1 xx yy
foo

v:\> ifftest.btm 1 2
foo

v:\> ifftest.btm 0 1
foo

v:\> ifftest.btm 1 0 xx

v:\>

 

[samintz]

Hmm. The code I posted is what I used. When I separated it into 3 IFF statements it worked. As a compound statement it executed "goto :usage" every time.

 

[rconn]

Still works fine for me, either executing "goto" if something matched or falling out the bottom if it didn't. You haven't yet told me what your args are when it fails to work for you.

 

[samintz]

Chalk it up to user error. I cannot reproduce it now. It was quite frustrating at the time however. I thought maybe it was due to the fact that the code was in a BAT file instead of a BTM file. Or some weird combination of spaces vs. tabs. But everything seems to work correctly today.