05-23-2019
Quote:
Originally Posted by
Scrutinizer
Thanks nezabudka,
Indeed -b can be used to ignore leading blanks; the sed statement can be used to remove leading spaces and correct the output..
The -V option is a non-standard extension that is carried by GNU Sort and BSD Sort and is used when the dot in the number signifies a major.minor version number. The -n option is used for numerical sorts.
They give different results, depending on the meaning of the dotted number, the OP has not indicated what is the case..
S.
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LEARN ABOUT DEBIAN
sort::key::types
Sort::Key::Types(3pm) User Contributed Perl Documentation Sort::Key::Types(3pm)
NAME
Sort::Key::Types - handle Sort::Key data types
SYNOPSIS
use Sort::Key::Types qw(register_type);
register_type(Color => sub { $_->R, $_->G, $_->B }, qw(int, int, int));
# you better
# use Sort::Key::Register ...
DESCRIPTION
The Sort::Key family of modules can be extended to support new key types using this module (or the more friendly Sort::Key::Register).
FUNCTIONS
The following functions are provided:
Sort::Key::register_type($name, &gensubkeys, @subkeystypes)
registers a new datatype named $name defining how to convert it to a multikey.
&gensubkeys should convert the object of type $name passed on $_ to a list of values composing the multikey.
@subkeystypes is the list of types for the generated multikeys.
For instance:
Sort::Key::Types::register_type
'Person',
sub { $_->surname,
$_->name,
$_->middlename },
qw(str str str);
Sort::Key::Types::register_type
'Color',
sub { $_->R, $_->G, $_->B },
qw(int int int);
Once a datatype has been registered it can be used in the same way as types supported natively, even for defining new types, i.e.:
Sort::Key::Types::register_type
'Family',
sub { $_->father, $_->mother },
qw(Person Person);
SEE ALSO
Sort::Key, Sort::Key::Merger, Sort::Key::Register.
COPYRIGHT AND LICENSE
Copyright (C) 2005-2007 by Salvador Fandin~o, <sfandino@yahoo.com>.
This library is free software; you can redistribute it and/or modify it under the same terms as Perl itself, either Perl version 5.8.4 or,
at your option, any later version of Perl 5 you may have available.
perl v5.14.2 2012-06-30 Sort::Key::Types(3pm)