On Tue, 22 Jun 2010, Doriano Blengino wrote:
Hi,
I am writing a Freepascal IDE in Linux+GTK2 (using freepascal, of course!). I
attach a screenshot for your curiosity, just in case.
At this time I am trying to finish a good auto-completion, so I need to
extract symbols from pre-compiled PPUs (especially the runtime standard
libraries). Right now I use ppudump(1) to extract symbols, but I could switch
in future to the use of ppu.pas. I noticed that different freepascal releases
do not share a common PPU file format, so using ppu.pas inside the IDE would
force the user to use the same compiler version as the one used to compile
the IDE. On the other hand, I noticed that the release 2.4.x is the first one
which reports "v100" for a PPU file, which hopefully indicates that future
releases could be PPU-compatible...
Now, I would ask an advice: is it better to stick to ppudump, at a price of
some reduction in speed, and the risk that its output could change in future,
invalidating the IDE parsing routines? Or is it better to use ppu.pas in the
IDE, having confidence that ppu.pas will parse PPU file generated by
different versions/releases of freepascal?
Well, as far as I know, ppu simply skips blocks that it does not know,
so I would think it is safe to use.
Michael.
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