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(at)e-trolley(dot)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
>
>
> ---------------------------(end of
> broadcast)---------------------------
> TIP 9: the planner will ignore your desire to choose
> an index scan if your
> joining column's datatypes do not match

__________________________________
Do you Yahoo!?
The New Yahoo! Shopping - with improved product search
http://shopping.yahoo.com