δΊ 18/04/2013 21:42, Rob Mensching ει: > People guessing the SQL influence are correct. Back in 1995, SQL was a big > thing and transacted install was the big new idea (a very good idea, IMHO) > so there was a theory that you should make the MSI a SQL database because > you're doing transaction stuff. IMHO, that didn't work out nearly as well > as hoped, but this was before the creation of XML so given the time it > makes sense. > > The WiX preprocessor is designed to mimic the C/C++ preprocessor. > Personally, I think the separation is good to remind one that the > preprocessor runs in the build lab and the SQL/Condition syntax runs during > install time. > > It is a little confusing up front but it is important to get the separation > of build time and install time correct or one will be *extremely* confused. > <smile/> > > > On Thu, Apr 18, 2013 at 6:13 AM, Pally Sandher <pally.sand...@iesve.com>wrote: > >> 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 >> >> > ------------------------------------------------------------------------------ > 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 I feel the Wix's documentation and totorial are a little hard for me to use,maybe I should get familiar with the MSI first. Thanks for all the replies,now I completely understood.
------------------------------------------------------------------------------ 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
