Message-ID: 
 <0862feba5dd70bb08d69d1cd4c33eb29.squirrel@www.webmail.fmed.uba.ar>
In-Reply-To: <hihosa$sj4$1@reversiblemaps.ath.cx>
References: 
 <6f55ccf2a59fe7bca287389ec92e5f91.squirrel@www.webmail.fmed.uba.ar>
	<hihosa$sj4$1@reversiblemaps.ath.cx>
Date: Tue, 12 Jan 2010 14:17:40 -0200 (ARST)
Subject: Re: problem using regexp_replace
From: gherzig@fmed.uba.ar
To: "Jasen Betts" <jasen@xnet.co.nz>
Cc: pgsql-sql@postgresql.org
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> On 2010-01-11, gherzig@fmed.uba.ar <gherzig@fmed.uba.ar> wrote:
>
>> So, i come with this:
>> SELECT regexp_replace(
>>     formato, E'{([^.]*)\.([a-zA-Z0-9]*)},
>> valores_sustitucion(ARRAY[E'\\1'::varchar,E'\\2'::varchar]),
>>                  'g')
>> from table where id =1;
>
> select valores_sustitucion(ARRAY[E'\\1'::varchar,E'\\2'::varchar]);
>
>   valores_sustitucion
>   ---------------------
>    FALSE
>
> that's the problem you are getting, the valores_sustitucion works on
> the values given and that result is given to regexp_replace.
>
> try this:
>
> create OR REPLACE function magic( inp text ) returns text as $F$
> DECLARE
> tmp text;
> res text;
> BEGIN
> 	tmp= 'SELECT ' ||
> regexp_replace(quote_literal(inp),E'{([^.]*)\.([a-zA-Z0-9]*)}',
> 		$s$'|| valores_sustitucion(ARRAY[E'\1',E'\2']) ||'$s$,'g');
> --	raise notice 'tmp=%',(tmp);
> 	EXECUTE tmp INTO res;
> 	RETURN res;
> END;
> $F$ language plpgsql;
>
> SELECT magic( formato ) FROM from table where id =1;
>
>
> --
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>
>
You hit that really hard, Jasen, thank you very much!!
You save my week :)

Thanks again.
Gerardo