Rob Dixon wrote:
John W. Krahn wrote:
Strings like '%1\$s16->' are not valid sprintf/printf formats. What
does your data look like and what do you expect it to look like after
using sprintf?
From perldoc -f sprintf:
format parameter index
An explicit format parameter index, such as "2$". By default
sprintf will format the next unused argument in the list,
but this allows you to take the arguments out of order,
e.g.:
printf '%2$d %1$d', 12, 34; # prints "34 12"
printf '%3$d %d %1$d', 1, 2, 3; # prints "3 1 1"
Thank you for reading the documentation to me but '%1\$s' is not the
same as '%1$s'.
$ perl -le'
my $format = q[%s : %s : %1\$s] . "\n";
my @data = qw[ one two three four ];
printf $format, @data;
'
one : two : %1\$s
$ perl -le'
my $format = q[%s : %s : %1$s] . "\n";
my @data = qw[ one two three four ];
printf $format, @data;
'
one : two : one
John
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annoyance to those of us who do. -- Isaac Asimov
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