matching keywords
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matching keywords
by bytecolor-2
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Hello people,
Still playing with Spirit2. My grammar works well, except for reserved words. I've got an example here: http://codepad.org/SF1xC2ac It works fine there. I think it's matching reserved words correctly. More to the point, identifiers that start with a reserved word *dont* fail. If I implement this in my larger grammer it fails. So either I'm not doing this correctly, or I have some ambiguities in my larger grammar. Does that code look correct? Thanks -- S. Edward Dolan ------------------------------------------------------------------------------ Let Crystal Reports handle the reporting - Free Crystal Reports 2008 30-Day trial. Simplify your report design, integration and deployment - and focus on what you do best, core application coding. Discover what's new with Crystal Reports now. http://p.sf.net/sfu/bobj-july _______________________________________________ Spirit-general mailing list Spirit-general@... https://lists.sourceforge.net/lists/listinfo/spirit-general |
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Re: matching keywords
by temp-9
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> Hello people,
> > Still playing with Spirit2. My grammar works well, except for reserved > words. > > I've got an example here: > http://codepad.org/SF1xC2ac > > It works fine there. I think it's matching reserved words correctly. > More to the point, identifiers that start with a reserved word *dont* > fail. > > If I implement this in my larger grammer it fails. So either I'm not > doing this correctly, or I have some ambiguities in my larger grammar. > > Does that code look correct? Spirit 2.x does not have direct support for keywords. I'd try to use the and predicate. Something like: lexeme[keyword >> &space] Paul ------------------------------------------------------------------------------ Let Crystal Reports handle the reporting - Free Crystal Reports 2008 30-Day trial. Simplify your report design, integration and deployment - and focus on what you do best, core application coding. Discover what's new with Crystal Reports now. http://p.sf.net/sfu/bobj-july _______________________________________________ Spirit-general mailing list Spirit-general@... https://lists.sourceforge.net/lists/listinfo/spirit-general |
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Re: matching keywords
by Joel de Guzman-2
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temp@... wrote:
>> Hello people, >> >> Still playing with Spirit2. My grammar works well, except for reserved >> words. >> >> I've got an example here: >> http://codepad.org/SF1xC2ac >> >> It works fine there. I think it's matching reserved words correctly. >> More to the point, identifiers that start with a reserved word *dont* >> fail. >> >> If I implement this in my larger grammer it fails. So either I'm not >> doing this correctly, or I have some ambiguities in my larger grammar. >> >> Does that code look correct? > > Spirit 2.x does not have direct support for keywords. I'd try to use the > and predicate. Something like: > > lexeme[keyword >> &space] I prefer: keyword >> !(alnum | '_') // make sure we have whole words Regards, -- Joel de Guzman http://www.boostpro.com http://spirit.sf.net http://www.facebook.com/djowel Meet me at BoostCon http://www.boostcon.com/home http://www.facebook.com/boostcon ------------------------------------------------------------------------------ Let Crystal Reports handle the reporting - Free Crystal Reports 2008 30-Day trial. Simplify your report design, integration and deployment - and focus on what you do best, core application coding. Discover what's new with Crystal Reports now. http://p.sf.net/sfu/bobj-july _______________________________________________ Spirit-general mailing list Spirit-general@... https://lists.sourceforge.net/lists/listinfo/spirit-general |
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