Comments on: DGrok 0.4 released: grammar 100% done

By: Joe White

Joe White — Sun, 30 Sep 2007 11:55:00 +0000

SQL would probably be a lot easier than Delphi, but it’s not something I have any need for, so no, not likely in the foreseeable future.

By: Ben

Ben — Sun, 30 Sep 2007 05:37:00 +0000

Nice work. I’d love to see an equivalent project to parse SQL. (Particularly T-SQL). Any chance you’ve considered it?

By: Joe White

Joe White — Sat, 29 Sep 2007 13:38:00 +0000

It would take some work to make this usable for a code formatter (in particular, it would have to somehow keep track of comments, rather than just throwing them away).

Code formatting is actually one of the things I originally was hoping to do with a parser, but I wound up discarding the idea — for the time being, at least — just because of the extra work involved. But if someone else wants to run with it, that’d be terrific.

By: Shawn Oster

Shawn Oster — Sat, 29 Sep 2007 06:30:00 +0000

Just wanted to say that this is awesome work you’re putting into this thing. There are a lot of projects out there that stalled or were half-arsed because they really needed a solid Delphi parser and instead made due with a home-grown "works for me" parser.

I know the people trying to create a solid code formatter will be happy to have this.

By: Joe White

Joe White — Fri, 28 Sep 2007 15:32:00 +0000

Oops! Thanks, Heiko. Fixed.

By: Heiko Behrens

Heiko Behrens — Fri, 28 Sep 2007 15:26:00 +0000

Your download link has a typo.

By: Joe White

Joe White — Fri, 28 Sep 2007 15:25:00 +0000

Ahh. Thanks, Rob. I thought I remembered something like that, but I couldn’t get it to compile with two colons. Turns out that’s because I was using an integer value; it only accepts the second colon if you’re using a float value. I’ll get this into the next release.

By: Rob Kennedy

Rob Kennedy — Fri, 28 Sep 2007 13:49:00 +0000

I’m pretty sure there can be _two_ colon parameters. One for width, and one for precision. So your ParameterExpression production might need to be this instead:

Expression [’:’ Expression [’:’ Expression]]