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Re: keyword list/ecpg

From: Mike Aubury <mike(dot)aubury(at)aubit(dot)com>
To: Tom Lane <tgl(at)sss(dot)pgh(dot)pa(dot)us>, Michael Meskes <meskes(at)postgresql(dot)org>, PostgreSQL Hacker <pgsql-hackers(at)postgresql(dot)org>
Subject: Re: keyword list/ecpg
Date: 2008-06-04 15:43:59
Message-ID: 200806041643.59918.mike.aubury@aubit.com (view raw or flat)
Thread:
Lists: pgsql-hackers
I wouldn't mind having a stab at this if you can expand on the 'magic' 
required.

(I'm interested because I might be able to use the same logic to roll a third 
version of the .y for Aubit4GL outside of the Postgresql tree)




On Wednesday 04 June 2008 16:11:49 Michael Meskes wrote:
> On Wed, Jun 04, 2008 at 10:21:19AM -0400, Tom Lane wrote:
> > Ugh :-(.
>
> This is why I didn't want to go that route. :-)
>
> > I have not spent much time looking at the ecpg grammar, so feel free to
> > laugh this off, but I had the impression that all the rules derived from
> > the backend grammar have boilerplate action sections (ie, just join the
>
> This is true.
>
> > strings together).  So I was hoping that we could leave the backend's
> > .y file more or less as-is, and write a perl script that would go
> > through it and replace each { ... } action with a suitable cat_str call,
> > which it could build on-the-fly by counting the number of rule tokens.
>
> There is some small magic to know when to have blanks in between and
> when not, but that should be doable.
>
> > Then combine that output with the ecpg-specific rules taken from a
> > separate source file.  Obviously there would have to be a few small
>
> This might work. Anyone with good perl knowledge interested?
>
> Michael
>
> --
> Michael Meskes
> Email: Michael at Fam-Meskes dot De, Michael at Meskes dot (De|Com|Net|Org)
> ICQ: 179140304, AIM/Yahoo: michaelmeskes, Jabber: meskes(at)jabber(dot)org
> Go VfL Borussia! Go SF 49ers! Use Debian GNU/Linux! Use PostgreSQL!



-- 
Mike Aubury

http://www.aubit.com/
Aubit Computing Ltd is registered in England and Wales, Number: 3112827
Registered Address : Clayton House,59 Piccadilly,Manchester,M1 2AQ




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Subject: Re: keyword list/ecpg
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