need help please

Hi, everyone
I have a problem and need help.
The app that is getting installed must not have a space (' ') in its directory path.

which means:

C:\Program Files\App   is an invalid path for the app.

C:\App                 is a valid path.

How can I check, if there are spaces in $instdir or not?

Any help will be appreciated.

First thing that comes in my mind is to remove all possible spaces from the installpath variable, put the result into another variable and then compare both.

Something like this:

${StrReplace} '$R0' ' ' '' '$INSTDIR'

${if} $R0 != $INSTDIR

  MessageBox MB_OK "The selected Path contains spaces !!!"

${else}

  ;Path is OK

${endif}

i used something similiar to remove the dots from a versionnumer to compare them.

The rest of the StringReplace function is mentioned here: NSiS:StrRep (http://nsis.sourceforge.net/StrRep).
You need the whole function code, mentioned there, to make this work.

You want to use "GetFullPathName"

Pulled directly from the help file...

StrCpy $INSTDIR $PROGRAMFILES\NSIS



SetOutPath $INSTDIR



GetFullPathName $0 ..



DetailPrint $0 # will print C:\Program Files



GetFullPathName /SHORT $0 $INSTDIR



DetailPrint $0 # will print C:\Progra~1\NSIS