On 28 January 2013 20:32, Dean Rasheed <dean.a.rash...@gmail.com> wrote: > In general a format specifier looks like: > > %[parameter][flags][width][.precision][length]type >
This highlights another problem with the current implementation --- the '-' flag and the width field need to be parsed separately. So '%-3s' should be parsed as a '-' flag followed by a width of 3, not as a width of -3, which is then interpreted as left-aligned. This might seem like nitpicking, but actually it is important: * In the future we might support more flags, and they can be specified in any order, so the '-' flag won't necessarily come immediately before the width. * The width field is optional, even if the '-' flag is specified. So '%-s' is perfectly legal and should be interpreted as '%s'. The current implementation treats it as a width of 0, which is wrong. * The width field might not be a number, it might be something like * or *3$. Note that the SUS allows a negative width to be passed in as a function argument using this syntax, in which case it should be treated as if the '-' flag were specified. Regards, Dean -- Sent via pgsql-hackers mailing list (pgsql-hackers@postgresql.org) To make changes to your subscription: http://www.postgresql.org/mailpref/pgsql-hackers