On Fri, Nov 17, 2006 at 03:53:35PM -0500, Tom Lane wrote: > > Having the supporting code in core does not make much of a difference > > otherwise from having it in contrib, does it? > > Given the nonextensibility of gram.y and keywords.c, it has to be in > core to even think about having special syntax :-(
Has anyone ever heard of extensible grammers? Just thinking wildly, you could decree that commands beginning with @ are extensions and are parsed by the module listed next. Then your command set becomes: @tsearch CREATE PARSER .... Then contrib modules can add their own parser. You'd have the overhead of multiple lex/yacc parsers, but you wouldn't have to change the main parser for every extension. Has anyone ever heard of something like this? Have a nice day, -- Martijn van Oosterhout <firstname.lastname@example.org> http://svana.org/kleptog/ > From each according to his ability. To each according to his ability to > litigate.
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