Joe White’s Blog

DGrok 0.6 is now available for download.

New in this version:

• All documented compiler directives are supported (plus one undocumented one, {$VARSTRINGCHECKS})
• Added support for hard casts to the file keyword, e.g., file(AUntypedVarParameter)
• Changed PointerType to allow any type, not just QualifiedIdent. This allows things like ^string.
• Fixed runtime cast error when a program or unit has a begin…end block or asm block for its initialization section. For simplicity’s sake, all init sections are now represented by InitSectionNode.
• Ignore .dproj files when you search for *.dpr.
• Ignore {$DEFINE} and {$UNDEF} when they occur inside a false {$IF...} block. Oops.
• Ignore unrecognized compiler directives if they’re inside a false {$IF...} block. This lets me ignore, say, FreePascal compiler directives (since they usually occur inside {$IFDEF FPC} blocks).
• Allow dotted names for packages (in the “Package Name” line).
• Contains clauses now support “in filename” specifiers. (Actually, contains clauses are now handled by the same rule as uses clauses.)
• Added support for [assembly: Attribute(...)] syntax. Yes, mostly I’ve been focusing on parsing Win32, but I have some need to deal with .NET code as well.
• Changed it so that not-yet-defined symbols are treated as false by {$IFDEF} rather than explicitly raising an error. The error served its purpose earlier, but I reached the pain point and shut it off.
• Added a Visitor class.

Whew. Not bad for one evening’s work.

I think Visitor will really be the way you put the parser to work. I was hoping to get some examples into today’s build, but I ran out of time. Play around if you like.

This entry was posted on Tuesday, October 2nd, 2007 at 6:10 am and is filed under .NET, Delphi, Programming. You can follow any responses to this entry through the RSS 2.0 feed. You can leave a response, or trackback from your own site.