On Tuesday 1. September 2009, Ian Barwick wrote:
>This seems to do what you want:
>
> my_int := (REGEXP_MATCHES(txt, E'^#(\\d+)'))[1];
Great! I had no idea that REGEXP_MATCHES() could do that kind of stuff.
pgslekt=> select (REGEXP_MATCHES('#42 blabla', E'^#(\\d+)'))
[1]::integer;
regexp_match
2009/9/1, Leif B. Kristensen :
> 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,
> LE
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
