Re: perlsub

(sound of dusting off of perl)
Capturing using $1 etc definitely does work in pl/perl
functions: I have used that plenty.
Strictly speaking, backreferences in
search-and-replace are signified by \1, \2 etc (not
$1, $2).  In the body of a PostgreSQL function those
backslashes would need to be escaped: my preference is
to double them (\\1, \\2).  This does not seem to
relate to your example though.
Arbitrary search-and-replace works fine for me, in a
simple case:
create function s(text, text, text) returns text as '
$_[0] =~ s/$_[1]/$_[2]/;
return $_[0];
' language 'plperl';
Perhaps if you could post a "real" example, you might
get more useful help.

--- Nabil Sayegh <postgresql@e-trolley.de> wrote:
> Thanks for your answer.
>
> The snippet was just an example.
> What I really want(ed) to do was arbitrary regex
> search/replace.
>
> Martin Lange wrote:
>
> > What I understand: You want to split some data
> into a pair of key
> > and value.
> >
> > So, just do that:
> >
> >     ($key, $val) = split(/=/, $data);
> >
> > HTH.
>
> --
>   e-Trolley Sayegh & John, Nabil Sayegh
>   Tel.: 0700 etrolley /// 0700 38765539
>   Fax.: +49 69 8299381-8
>   PGP : http://www.e-trolley.de
>
>
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