It seems possible that Judy arrays would reduce the space requirement further and (possibly) increase the performance. Just a shame that the Build mechanism is broken.

Since Judy seemed the most promising approach in my personal opinion, I did take a quick look at the complexities of getting the Perl module working under Windows. There seems to be at least 3 ways to build the Judy library itself under Windows:

  1. Cross-compile it on Unix.
  2. Configure it by hand and install GNU Make (and maybe gcc) to build it.
  3. Use the included *.bat file and build it using Visual Studio.

The last choice seems, by far, the easiest. The code included in Alien::Judy even includes the *.bat file. But since I didn't already have Visual Studio, I stopped looking at that point.

I didn't reply as what I discovered was found easily so I guessed you'd either find the same thing soon enough or wouldn't be that interested in using Judy.

Your node above (thanks for sharing your implementation) makes me think you may still be interested in Judy and also didn't yet find the *.bat file. So that little bit of information may encourage you and/or just save you some small bit of research.

The next steps (getting Judy to not fail to build just because Alien::Judy isn't installed and getting the build process for Judy to find the needed include and library files) seem to me to likely be fairly simple.

I may still eventually get around to jumping through those hoops (though, to be honest, there are a lot of higher-priority items on my to-do list right now). If I do, I'll post more details. If you do, please also post what you find.

Thanks.

- tye        

In reply to Re^2: Bidirectional lookup algorithm? (Judy) by tye
in thread Bidirectional lookup algorithm? (Updated: further info.) by BrowserUk

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