Hash::Case::Preserve
Section: User Contributed Perl Documentation (3pm)
Updated: 2022-10-13
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NAME
Hash::Case::Preserve - hash with enforced lower cased keys
INHERITANCE
Hash::Case::Preserve
is a Hash::Case
is a Tie::StdHash
SYNOPSIS
use Hash::Case::Preserve;
tie my(%cphash), 'Hash::Case::Preserve';
$cphash{StraNGeKeY} = 3;
print keys %cphash; # StraNGeKeY
print $cphash{strangekey}; # 3
print $cphash{STRANGEKEY}; # 3
DESCRIPTION
Hash::Case::Preserve extends Hash::Case, which lets you play
various trics with hash keys. This extension implements a fake
hash which is case-insentive. The keys are administered in the
casing as they were used: case-insensitive but case-preserving.
Extends ``DESCRIPTION'' in Hash::Case.
METHODS
Extends ``METHODS'' in Hash::Case.
Constructors
Extends ``Constructors'' in Hash::Case.
- $obj->addHashData(HASH)
-
Inherited, see ``Constructors'' in Hash::Case
- $obj->addPairs(PAIRS)
-
Inherited, see ``Constructors'' in Hash::Case
- $obj->setHash(HASH)
-
Inherited, see ``Constructors'' in Hash::Case
- tie(HASH, 'Hash::Case::Preserve', [VALUES,] OPTIONS)
-
Define HASH to be case insensitive, but case preserving.
The hash is initialized with the VALUES, specified as ref-array (passing
a list of key-value pairs) or ref-hash.
OPTIONS is a list of key/value pairs, which specify how the hash
must handle preservation. Current options:
-Option--Default
keep 'LAST'
-
- keep => 'FIRST' | 'LAST'
-
Which casing is the preferred casing? The FIRST appearance or the LAST.
Only stores will affect the casing, deletes will undo the definition.
Defaults to LAST, which is slightly faster.
-
SEE ALSO
This module is part of Hash-Case distribution version 1.05,
built on February 06, 2020. Website: http://perl.overmeer.net/CPAN/
LICENSE
Copyrights 2002-2020 by [Mark Overmeer <markov@cpan.org>]. For other contributors see ChangeLog.
This program is free software; you can redistribute it and/or modify it
under the same terms as Perl itself.
See http://dev.perl.org/licenses/
Index
- NAME
-
- INHERITANCE
-
- SYNOPSIS
-
- DESCRIPTION
-
- METHODS
-
- Constructors
-
- SEE ALSO
-
- LICENSE
-
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