Hi,
OK, I got it. I can now (learn to) write an back-end for haXe.
No I only need to know how the target shoul look.
CTags? Is there some defintion of how they look?
Thanks!
Nathan
On Tue, Dec 16, 2008 at 09:18:28AM -0500, Eric M. Ludlam wrote:
> Hi,
>
> You will need both. If you create a grammar for wisent, you will
> need to make a lexer and a parser. A "lex" style lexer does not
> translate directly into Semantic. You may be able to use all the
> canned lexer parts available in semantic-lex, and you may need to make
> some custom analyzers too. A key component to a Semantic lexer is to
> make sure it can identify code blocks as a single block. That way you
> don't have to parse the whole file, and things run faster.
>
> The grammar can often be converted as described below.
>
> It may also be worth asking on the haXe mailing list if a tagging
> back-end could be added easily. That might be a simpler project.
>
> Eric
>
> >>> Nathan Huesken <cedet@...> seems to think that:
> >Hi,
> >
> >The haXe package includes a lexer and a parser.
> >I do not know enough about compiler to know which would produce the tokens needed for semantic.
> >At which should I have a closer look, the lexer or the parser?
> >
> >THanks
> >Nathan
> >
> >On Sun, Dec 14, 2008 at 08:24:50AM -0500, Eric M. Ludlam wrote:
> >> >>> Nathan Huesken <cedet@...> seems to think that:
> >> >Hi,
> >> >
> >> >I wonder if it is difficult to get haXe support into cedet.
> >> >I read the lang-support-guide.texi, but I do not get smart from it.
> >> >
> >> >I wonder:
> >> >
> >> >Since a compiler exists for haXe, there has to be some sort of grammer
> >> >definition for it?
> >> >
> >> >Could this not be used by semantic?
> >> [ ... ]
> >>
> >> Hi,
> >>
> >> I'm not sure what haXe is other than what it says on the website,
> >> but there are a couple ways to get Semantic support for it.
> >>
> >> You could write a grammar for it with wisent. This would be similar
> >> to working with lex/yacc. This would be like the java parser. It is
> >> fast, does incremental parsing, and has good support. If there is a
> >> haXe yacc file, you can usually convert these to wisent by removing
> >> the C code, and replacing it with Emacs Lisp code.
> >>
> >> You could write a regexp parser for it. This would just use Emacs
> >> regular expression matching. It doesn't support incremental parsing,
> >> and can be slower for big files, but fast to get the first
> >> implementation working. This is like the texinfo parser.
> >>
> >> You could use the haXe compiler to spit out some sort of definition
> >> list. This would be similar to the ctags parser (in CVS only in
> >> semantic/ctags.) Since haXe seems to be targetable to multiple
> >> languages, it could spit out Emacs Lisp code of various sorts.
> >>
> >> I think a real haXe hacker would write a "target" for it to spit out
> >> CTags, GTags, or Semantic tags. That would be pretty cool.
> >>
> >> Good Luck
> >> Eric
> >>
> >> --
> >> Eric Ludlam: eric@...
> >> Siege: http://www.siege-engine.com Emacs: http://cedet.sourceforge.net
> >
>
> --
> Eric Ludlam: eric@...
> Siege: http://www.siege-engine.com Emacs: http://cedet.sourceforge.net
--
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