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Re: Block-structured language parsing using a Perl module?

by sundialsvc4 (Abbot)
on Aug 14, 2012 at 19:46 UTC ( #987444=note: print w/replies, xml ) Need Help??

in reply to Block-structured language parsing using a Perl module?

If you asked if any one of the CPAN modules could be used to parse a full-featured block-structured language, then the answer is Yes, and here are two that could do it.   As for Perl being the basis for a complete language compiler/interpreter or just parser, I am not aware of any.   Generally when you are looking at a parser you are in fact looking at the whole shebang:   compiler, interpreter, runtime.   There are numerous complete compiler and interpreter construction toolkits already available which will get you much closer, much faster, to that complete goal, and to be platform-independent as a freebie.

And, parenthetically, what I said is no idle boast, and the code that did it is proprietary now.   I would love to share it if I could, because to be quite honest I didn’t think Perl could do it.   Meanwhile:     You have “long skills” in certain pursuits, which I have quickly learned to respect and not to question, and I have long skills in others.   This happens to be one of them.

Now, let’s just stay on-topic here.   These parsers are very robust and they will give you excellent performance although not on par with Bison.   They can furthermore be programmed to winnow-through source code (as I did) through their exception-handling and error-recovery features, which are very robust.   Their tight integration with Perl (being in one case “pure Perl”) is a tremendous boost.   But I would not choose to build a complete language system in it.

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Re^2: Block-structured language parsing using a Perl module?
by BrowserUk (Pope) on Aug 14, 2012 at 20:10 UTC

    Literally nothing you said above relates in any way to the question I asked.

    I asked for references to publicly available USES of CPAN parser modules. Nothing else!

    I'm not interested in your extremely dubious "expertise". I'm not interested in your opinion.

    So please. Just stop.

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