Probably a combination of the 2. MSI's are basically databases so I wouldn't be surprised if SQL influenced some parts of Windows Installer design back in the day.
Palbinder Sandher Software Platform Engineer T: +44 (0) 141 945 8500 F: +44 (0) 141 945 8501 http://www.iesve.com **Design, Simulate + Innovate with the <Virtual Environment>** Integrated Environmental Solutions Limited. Registered in Scotland No. SC151456 Registered Office - Helix Building, West Of Scotland Science Park, Glasgow G20 0SP Email Disclaimer -----Original Message----- From: John Ludlow [mailto:john.ludlow...@gmail.com] Sent: 18 April 2013 13:51 To: General discussion for Windows Installer XML toolset. Subject: Re: [WiX-users] Why in Preprocessor the "Not Equal To" is "!=" while in conditional string is "<>". <> is also the syntax in Visual Basic, and VB / VBA has always had strong ties to Office, which is where MSI originated from IIRC. On 18 April 2013 13:35, Hans ter Horst <hoshis...@gmail.com> wrote: > Thanks, I think I have it working! > > > > On Thu, Apr 18, 2013 at 2:13 PM, Alain Forget <afor...@cmu.edu> wrote: > > > <> is the MySQL (and SQL in general?) "not equal to", so maybe > > that's where it came from? > > > > -----Original Message----- > > From: Pally Sandher [mailto:pally.sand...@iesve.com] > > Sent: April 18, 2013 06:42 > > To: General discussion for Windows Installer XML toolset. > > Subject: Re: [WiX-users] Why in Preprocessor the "Not Equal To" is "!=" > > while in conditional string is "<>". > > > > Because the WiX team wrote the WiX pre-processor syntax & kept it to > > regularly accepted coding standards (hence != for 'not equal to' as > > per every other modern programming language) while the Conditional > > Statement syntax was written by the Windows Installer team back in > > the mists of > time? > > > > Palbinder Sandher > > Software Platform Engineer > > T: +44 (0) 141 945 8500 > > F: +44 (0) 141 945 8501 > > http://www.iesve.com > > > > **Design, Simulate + Innovate with the <Virtual Environment>** > > Integrated Environmental Solutions Limited. Registered in Scotland No. > > SC151456 > > Registered Office - Helix Building, West Of Scotland Science Park, > Glasgow > > G20 0SP > > Email Disclaimer > > > > > > -----Original Message----- > > From: uni [mailto:unigauld...@gmail.com] > > Sent: 18 April 2013 06:08 > > To: wix-users@lists.sourceforge.net > > Subject: [WiX-users] Why in Preprocessor the "Not Equal To" is "!=" > > while in conditional string is "<>". > > > > It is not very intuitive. > > I first write: > > <?if $(var.CurrentVersion)<>$(var.MinimumVersion)?> > > and it says: > > "error CNDL0162: An illegal number was found in the expression > > '$(var.CurrentVersion)<>$(var.MinimumVersion)'." > > > > > > > ---------------------------------------------------------------------- > -------- > > Precog is a next-generation analytics platform capable of advanced > > analytics on semi-structured data. The platform includes APIs for > building > > apps and a phenomenal toolset for data science. Developers can use > > our toolset for easy data analysis & visualization. Get a free account! > > http://www2.precog.com/precogplatform/slashdotnewsletter > > _______________________________________________ > > WiX-users mailing list > > WiX-users@lists.sourceforge.net > > https://lists.sourceforge.net/lists/listinfo/wix-users > > > > > > > > > > > ---------------------------------------------------------------------- > -------- > > Precog is a next-generation analytics platform capable of advanced > > analytics on semi-structured data. The platform includes APIs for > building > > apps and a phenomenal toolset for data science. Developers can use > > our toolset for easy data analysis & visualization. Get a free account! > > http://www2.precog.com/precogplatform/slashdotnewsletter > > _______________________________________________ > > WiX-users mailing list > > WiX-users@lists.sourceforge.net > > https://lists.sourceforge.net/lists/listinfo/wix-users > > > > > > > > > ---------------------------------------------------------------------- > -------- > > Precog is a next-generation analytics platform capable of advanced > > analytics on semi-structured data. The platform includes APIs for > building > > apps and a phenomenal toolset for data science. Developers can use > > our toolset for easy data analysis & visualization. Get a free account! > > http://www2.precog.com/precogplatform/slashdotnewsletter > > _______________________________________________ > > WiX-users mailing list > > WiX-users@lists.sourceforge.net > > https://lists.sourceforge.net/lists/listinfo/wix-users > > > > > > -- > http://monochrome.me.uk/blog/ > > ---------------------------------------------------------------------- > -------- Precog is a next-generation analytics platform capable of > advanced analytics on semi-structured data. The platform includes APIs > for building apps and a phenomenal toolset for data science. > Developers can use our toolset for easy data analysis & visualization. > Get a free account! > http://www2.precog.com/precogplatform/slashdotnewsletter > _______________________________________________ > WiX-users mailing list > WiX-users@lists.sourceforge.net > https://lists.sourceforge.net/lists/listinfo/wix-users > ------------------------------------------------------------------------------ Precog is a next-generation analytics platform capable of advanced analytics on semi-structured data. The platform includes APIs for building apps and a phenomenal toolset for data science. Developers can use our toolset for easy data analysis & visualization. Get a free account! http://www2.precog.com/precogplatform/slashdotnewsletter _______________________________________________ WiX-users mailing list WiX-users@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/wix-users ------------------------------------------------------------------------------ Precog is a next-generation analytics platform capable of advanced analytics on semi-structured data. The platform includes APIs for building apps and a phenomenal toolset for data science. Developers can use our toolset for easy data analysis & visualization. Get a free account! http://www2.precog.com/precogplatform/slashdotnewsletter _______________________________________________ WiX-users mailing list WiX-users@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/wix-users
