Re: keyword list/ecpg

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От Michael Meskes
Тема Re: keyword list/ecpg
Дата
Msg-id 20080604151149.GA29633@feivel.credativ.de
обсуждение исходный текст
Ответ на Re: keyword list/ecpg  (Tom Lane <tgl@sss.pgh.pa.us>)
Ответы Re: keyword list/ecpg  (Mike Aubury <mike.aubury@aubit.com>)
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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

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Michael Meskes
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