A simple calculator language using a lexer and parser generated by FsLex.exe and FsYacc.exe from the F# PowerPack. This template can be used as a starter for more sophisticated parsing.
A concise, easy to understand example of a parser/lexer for a simple calculator language. It only implements the basic feature (add/sub/mult/div + parens), providing you with some easy opportunities to extend the language and figure out how it all hangs together (e.g. adding a "^" operator).
We've found this starter really useful in the office but are now struggling to get it to work with VS2012 and the newest version of the PowerPack - any chance it could be updated to work with Microsoft's new toolset? Thanks!
Hey, i am pretty new to F#, and basically looking at it for the reason for fsLex. After installing your template, i attempted to run the new project as is and it fails to compile.
System.IO.FileNotFoundException: Could not load file or assembly 'System.Core, Version=3.5.0.0, Culture=neutral, PublicKeyToken=b77a5c561934e089' or one of its dependencies. The system cannot find the file specified. FSLEX
This is probably an issue with my configuration, but i was hoping you can help.
When I try to use the downloadable extension, it says that "This extension is not installable on any currently installed products." Can somebody tell me how to fix this? I really want to use FsLex and FsYacc, but there are always errors like this. Thanks in advance for replying!
I had the same problem using the Integrated Shell version of Visual Studio. To get around it I edited the extension.vsixmanifest file inside the .vsix file (it's just a zip archive so open it with your favorite zip editor) and added <Edition>IntegratedShell</Edition> to the SupportedProducts element.
Hi Jomo,
Thanks for sharing this template, I have downloaded and installed, however, I can't see any changes.
And how do I suppose to use this template?
And where can I see the source code?
Thanks and best regards,
Emma
Emma: I think I figured out what your problem is. I found if you don't shut down Visual Studio after installing the template, it may not be there in the Templates list when you hit "new project". Try again - it should be there. If you select it, you'll get all the source code and just have to hit F5 to get it running :-)
View Large
