From: Leif B. Kristensen <leif@solumslekt.org>
To: pgsql-sql@postgresql.org
Subject: Plpgsql: Assign regular expression match to variable
Date: Tue, 1 Sep 2009 14:01:00 +0200
Message-ID: <200909011401.00231.leif@solumslekt.org> (raw)
In Plpgsql, I've got this problem of how to assign an integer extracted
from a regex to a variable. My approach so far feels kludgy:
-- extract ^#(\d+) from txt
IF txt SIMILAR TO E'#\\d+%' THEN
my_int := SUBSTR(SUBSTRING(txt, E'#\\d+'), 2,
LENGTH(SUBSTRING(txt, E'#\\d+')) -1)::INTEGER;
-- strip ^#\d+ from text
my_txt := REGEXP_REPLACE(txt, E'^#\\d+ ', '');
END IF;
What I'd like to do is something like this:
my_int := MATCH(txt, '^#(\d+)')::INTEGER;
which would assign the integer atom (\d+) to my_int.
--
Leif Biberg Kristensen | Registered Linux User #338009
Me And My Database: http://solumslekt.org/blog/
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To: pgsql-sql@postgresql.org
Cc: leif@solumslekt.org
Subject: Re: Plpgsql: Assign regular expression match to variable
In-Reply-To: <200909011401.00231.leif@solumslekt.org>
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