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| Dir : //proc/thread-self/root/proc/self/root/proc/self/root/usr/share/perl5/vendor_perl/Locale/Codes.pm |
package Locale::Codes;
# Copyright (C) 2001 Canon Research Centre Europe (CRE).
# Copyright (C) 2002-2009 Neil Bowers
# Copyright (c) 2010-2018 Sullivan Beck
# This program is free software; you can redistribute it and/or modify it
# under the same terms as Perl itself.
###############################################################################
use strict;
use warnings;
require 5.006;
use Carp;
use if $] >= 5.027007, 'deprecate';
use Locale::Codes::Constants;
our($VERSION);
$VERSION='3.57';
use Exporter qw(import);
our(@EXPORT_OK,%EXPORT_TAGS);
@EXPORT_OK = @Locale::Codes::Constants::CONSTANTS;
%EXPORT_TAGS = ( 'constants' => [ @EXPORT_OK ] );
###############################################################################
# GLOBAL DATA
###############################################################################
# All of the data is stored in a couple global variables. They are filled
# in by requiring the appropriate TYPE_Codes and TYPE_Retired modules.
our(%Data,%Retired);
# $Data{ TYPE }{ code2id }{ CODESET } { CODE } = [ ID, I ]
# { id2code }{ CODESET } { ID } = CODE
# { id2names }{ ID } = [ NAME, NAME, ... ]
# { alias2id }{ NAME } = [ ID, I ]
# { id } = FIRST_UNUSED_ID
# { codealias }{ CODESET } { ALIAS } = CODE
#
# $Retired{ TYPE }{ CODESET }{ code }{ CODE } = NAME
# { name }{ NAME } = [CODE,NAME] (the key is lowercase)
###############################################################################
# METHODS
###############################################################################
sub new {
my($class,$type,$codeset,$show_errors) = @_;
my $self = { 'type' => '',
'codeset' => '',
'err' => (defined($show_errors) ? $show_errors : 1),
};
bless $self,$class;
$self->type($type) if ($type);
$self->codeset($codeset) if ($codeset);
return $self;
}
sub show_errors {
my($self,$val) = @_;
$$self{'err'} = $val;
}
sub type {
my($self,$type) = @_;
if (! exists $ALL_CODESETS{$type}) {
# uncoverable branch false
carp "ERROR: type: invalid argument: $type\n" if ($$self{'err'});
return;
}
# uncoverable branch false
if (! $ALL_CODESETS{$type}{'loaded'}) {
my $label = $ALL_CODESETS{$type}{'module'};
eval "require Locale::Codes::${label}_Codes";
# uncoverable branch true
if ($@) {
# uncoverable statement
croak "ERROR: type: unable to load module: ${label}_Codes\n";
}
eval "require Locale::Codes::${label}_Retired";
# uncoverable branch true
if ($@) {
# uncoverable statement
croak "ERROR: type: unable to load module: ${label}_Retired\n";
}
$ALL_CODESETS{$type}{'loaded'} = 1;
}
$$self{'type'} = $type;
$$self{'codeset'} = $ALL_CODESETS{$type}{'default'};
}
sub codeset {
my($self,$codeset) = @_;
my $type = $$self{'type'};
if (! exists $ALL_CODESETS{$type}{'codesets'}{$codeset}) {
# uncoverable branch false
carp "ERROR: codeset: invalid argument: $codeset\n" if ($$self{'err'});
}
$$self{'codeset'} = $codeset;
}
sub version {
# uncoverable subroutine
# uncoverable statement
my($self) = @_;
# uncoverable statement
return $VERSION;
}
###############################################################################
# This is used to validate a codeset and/or code. It will also format
# a code for that codeset.
#
# (ERR,RET_CODE,RET_CODESET) = $o->_code([CODE [,CODESET]])
#
# If CODE is empty/undef, only the codeset will be validated
# and RET_CODE will be empty.
#
# If CODE is passed in, it will be returned formatted correctly
# for the codeset.
#
# ERR will be 0 or 1.
#
# If $no_check_code is 1, then the code will not be validated (i.e.
# it doesn't already have to exist). This will be useful for adding
# a new code.
#
sub _code {
my($self,$code,$codeset,$no_check_code) = @_;
$code = '' if (! defined($code));
$codeset = lc($codeset) if (defined($codeset));
# uncoverable branch true
if (! $$self{'type'}) {
# uncoverable statement
carp "ERROR: no type set for Locale::Codes object\n" if ($$self{'err'});
# uncoverable statement
return (1);
}
my $type = $$self{'type'};
if ($codeset && ! exists $ALL_CODESETS{$type}{'codesets'}{$codeset}) {
carp "ERROR: _code: invalid codeset provided: $codeset\n"
if ($$self{'err'});
return (1);
}
# If no codeset was passed in, return the codeset specified.
$codeset = $$self{'codeset'} if (! defined($codeset) || $codeset eq '');
return (0,'',$codeset) if ($code eq '');
# Determine the properties of the codeset
my($op,@args) = @{ $ALL_CODESETS{$type}{'codesets'}{$codeset} };
if ($op eq 'lc') {
$code = lc($code);
}
if ($op eq 'uc') {
$code = uc($code);
}
if ($op eq 'ucfirst') {
$code = ucfirst(lc($code));
}
# uncoverable branch false
if ($op eq 'numeric') {
if ($code =~ /^\d+$/) {
my $l = $args[0];
$code = sprintf("%.${l}d", $code);
} else {
# uncoverable statement
carp "ERROR: _code: invalid numeric code: $code\n" if ($$self{'err'});
# uncoverable statement
return (1);
}
}
# Determine if the code is in the codeset.
if (! $no_check_code &&
! exists $Data{$type}{'code2id'}{$codeset}{$code} &&
! exists $Retired{$type}{$codeset}{'code'}{$code} &&
! exists $Data{$type}{'codealias'}{$codeset}{$code}) {
carp "ERROR: _code: code not in codeset: $code [$codeset]\n"
if ($$self{'err'});
return (1);
}
return (0,$code,$codeset);
}
###############################################################################
# $name = $o->code2name(CODE [,CODESET] [,'retired'])
# $code = $o->name2code(NAME [,CODESET] [,'retired'])
#
# Returns the name associated with the CODE (or vice versa).
#
sub code2name {
my($self,@args) = @_;
my $retired = 0;
if (@args && defined($args[$#args]) && lc($args[$#args]) eq 'retired') {
pop(@args);
$retired = 1;
}
# uncoverable branch true
if (! $$self{'type'}) {
# uncoverable statement
carp "ERROR: no type set for Locale::Codes object\n" if ($$self{'err'});
# uncoverable statement
return (1);
}
my $type = $$self{'type'};
my ($err,$code,$codeset) = $self->_code(@args);
return undef if ($err || ! $code);
$code = $Data{$type}{'codealias'}{$codeset}{$code}
if (exists $Data{$type}{'codealias'}{$codeset}{$code});
if (exists $Data{$type}{'code2id'}{$codeset}{$code}) {
my ($id,$i) = @{ $Data{$type}{'code2id'}{$codeset}{$code} };
my $name = $Data{$type}{'id2names'}{$id}[$i];
return $name;
} elsif ($retired && exists $Retired{$type}{$codeset}{'code'}{$code}) {
return $Retired{$type}{$codeset}{'code'}{$code};
} else {
return undef;
}
}
sub name2code {
my($self,$name,@args) = @_;
return undef if (! $name);
$name = lc($name);
my $retired = 0;
if (@args && defined($args[$#args]) && lc($args[$#args]) eq 'retired') {
pop(@args);
$retired = 1;
}
# uncoverable branch true
if (! $$self{'type'}) {
# uncoverable statement
carp "ERROR: no type set for Locale::Codes object\n" if ($$self{'err'});
# uncoverable statement
return (1);
}
my $type = $$self{'type'};
my ($err,$tmp,$codeset) = $self->_code('',@args);
return undef if ($err);
if (exists $Data{$type}{'alias2id'}{$name}) {
my $id = $Data{$type}{'alias2id'}{$name}[0];
if (exists $Data{$type}{'id2code'}{$codeset}{$id}) {
return $Data{$type}{'id2code'}{$codeset}{$id};
}
} elsif ($retired && exists $Retired{$type}{$codeset}{'name'}{$name}) {
return $Retired{$type}{$codeset}{'name'}{$name}[0];
}
return undef;
}
# $code = $o->code2code(CODE,CODESET2)
# $code = $o->code2code(CODE,CODESET1,CODESET2)
#
# Changes the code in the CODESET1 (or the current codeset) to another
# codeset (CODESET2)
#
sub code2code {
my($self,@args) = @_;
# uncoverable branch true
if (! $$self{'type'}) {
# uncoverable statement
carp "ERROR: no type set for Locale::Codes object\n" if ($$self{'err'});
# uncoverable statement
return (1);
}
my $type = $$self{'type'};
my($code,$codeset1,$codeset2,$err);
if (@args == 2) {
($code,$codeset2) = @args;
($err,$code,$codeset1) = $self->_code($code);
# uncoverable branch true
return undef if ($err);
} elsif (@args == 3) {
($code,$codeset1,$codeset2) = @args;
($err,$code) = $self->_code($code,$codeset1);
return undef if ($err);
($err) = $self->_code('',$codeset2);
# uncoverable branch true
return undef if ($err);
}
my $name = $self->code2name($code,$codeset1);
my $out = $self->name2code($name,$codeset2);
return $out;
}
###############################################################################
# @codes = $o->all_codes([CODESET] [,'retired']);
# @names = $o->all_names([CODESET] [,'retired']);
#
# Returns all codes/names in the specified codeset, including retired
# ones if the option is given.
sub all_codes {
my($self,@args) = @_;
my $retired = 0;
if (@args && defined($args[$#args]) && lc($args[$#args]) eq 'retired') {
pop(@args);
$retired = 1;
}
# uncoverable branch true
if (! $$self{'type'}) {
# uncoverable statement
carp "ERROR: no type set for Locale::Codes object\n" if ($$self{'err'});
# uncoverable statement
return (1);
}
my $type = $$self{'type'};
my ($err,$tmp,$codeset) = $self->_code('',@args);
return () if ($err);
my @codes = keys %{ $Data{$type}{'code2id'}{$codeset} };
push(@codes,keys %{ $Retired{$type}{$codeset}{'code'} }) if ($retired);
return (sort @codes);
}
sub all_names {
my($self,@args) = @_;
my $retired = 0;
if (@args && defined($args[$#args]) && lc($args[$#args]) eq 'retired') {
pop(@args);
$retired = 1;
}
# uncoverable branch true
if (! $$self{'type'}) {
# uncoverable statement
carp "ERROR: no type set for Locale::Codes object\n" if ($$self{'err'});
# uncoverable statement
return (1);
}
my $type = $$self{'type'};
my ($err,$tmp,$codeset) = $self->_code('',@args);
return () if ($err);
my @codes = $self->all_codes($codeset);
my @names;
foreach my $code (@codes) {
my($id,$i) = @{ $Data{$type}{'code2id'}{$codeset}{$code} };
my $name = $Data{$type}{'id2names'}{$id}[$i];
push(@names,$name);
}
if ($retired) {
foreach my $lc (keys %{ $Retired{$type}{$codeset}{'name'} }) {
my $name = $Retired{$type}{$codeset}{'name'}{$lc}[1];
push @names,$name;
}
}
return (sort @names);
}
###############################################################################
# $flag = $o->rename_code (CODE,NEW_NAME [,CODESET])
#
# Change the official name for a code. The original is retained
# as an alias, but the new name will be returned if you lookup the
# name from code.
#
# Returns 1 on success.
#
sub rename_code {
my($self,$code,$new_name,$codeset) = @_;
# uncoverable branch true
if (! $$self{'type'}) {
# uncoverable statement
carp "ERROR: no type set for Locale::Codes object\n" if ($$self{'err'});
# uncoverable statement
return 0;
}
my $type = $$self{'type'};
# Make sure $code/$codeset are both valid
my($err,$c,$cs) = $self->_code($code,$codeset);
if ($err) {
carp "ERROR: rename: Unknown code/codeset: $code [$codeset]\n"
if ($$self{'err'});
return 0;
}
($code,$codeset) = ($c,$cs);
# Cases:
# 1. Renaming to a name which exists with a different ID
# Error
#
# 2. Renaming to a name which exists with the same ID
# Just change code2id (I value)
#
# 3. Renaming to a new name
# Create a new alias
# Change code2id (I value)
my $id = $Data{$type}{'code2id'}{$codeset}{$code}[0];
if (exists $Data{$type}{'alias2id'}{lc($new_name)}) {
# Existing name (case 1 and 2)
my ($new_id,$i) = @{ $Data{$type}{'alias2id'}{lc($new_name)} };
if ($new_id != $id) {
# Case 1
carp "ERROR: rename: rename to an existing name not allowed\n"
if ($$self{'err'});
return 0;
}
# Case 2
$Data{$type}{'code2id'}{$codeset}{$code}[1] = $i;
} else {
# Case 3
push @{ $Data{$type}{'id2names'}{$id} },$new_name;
my $i = $#{ $Data{$type}{'id2names'}{$id} };
$Data{$type}{'alias2id'}{lc($new_name)} = [ $id,$i ];
$Data{$type}{'code2id'}{$codeset}{$code}[1] = $i;
}
return 1;
}
###############################################################################
# $flag = $o->add_code (CODE,NAME [,CODESET])
#
# Add a new code to the codeset. Both CODE and NAME must be
# unused in the code set.
#
sub add_code {
my($self,$code,$name,$codeset) = @_;
# uncoverable branch true
if (! $$self{'type'}) {
# uncoverable statement
carp "ERROR: no type set for Locale::Codes object\n" if ($$self{'err'});
# uncoverable statement
return 0;
}
my $type = $$self{'type'};
# Make sure that $codeset is valid.
my($err,$c,$cs) = $self->_code($code,$codeset,1);
if ($err) {
carp "ERROR: rename: Unknown codeset: $codeset\n"
if ($$self{'err'});
return 0;
}
($code,$codeset) = ($c,$cs);
# Check that $code is unused.
if (exists $Data{$type}{'code2id'}{$codeset}{$code} ||
exists $Data{$type}{'codealias'}{$codeset}{$code}) {
carp "add_code: code already in use: $code\n" if ($$self{'err'});
return 0;
}
# Check to see that $name is unused in this code set. If it is
# used (but not in this code set), we'll use that ID. Otherwise,
# we'll need to get the next available ID.
my ($id,$i);
if (exists $Data{$type}{'alias2id'}{lc($name)}) {
($id,$i) = @{ $Data{$type}{'alias2id'}{lc($name)} };
if (exists $Data{$type}{'id2code'}{$codeset}{$id}) {
carp "add_code: name already in use: $name\n" if ($$self{'err'});
return 0;
}
} else {
$id = $Data{$type}{'id'}++;
$i = 0;
$Data{$type}{'alias2id'}{lc($name)} = [ $id,$i ];
$Data{$type}{'id2names'}{$id} = [ $name ];
}
# Add the new code
$Data{$type}{'code2id'}{$codeset}{$code} = [ $id,$i ];
$Data{$type}{'id2code'}{$codeset}{$id} = $code;
return 1;
}
###############################################################################
# $flag = $o->delete_code (CODE [,CODESET])
#
# Delete a code from the codeset.
#
sub delete_code {
my($self,$code,$codeset) = @_;
# uncoverable branch true
if (! $$self{'type'}) {
# uncoverable statement
carp "ERROR: no type set for Locale::Codes object\n" if ($$self{'err'});
# uncoverable statement
return 0;
}
my $type = $$self{'type'};
# Make sure $code/$codeset are both valid
my($err,$c,$cs) = $self->_code($code,$codeset);
# uncoverable branch true
if ($err) {
# uncoverable statement
carp "ERROR: rename: Unknown code/codeset: $code [$codeset]\n"
if ($$self{'err'});
# uncoverable statement
return 0;
}
($code,$codeset) = ($c,$cs);
# Delete the code
my $id = $Data{$type}{'code2id'}{$codeset}{$code}[0];
delete $Data{$type}{'code2id'}{$codeset}{$code};
delete $Data{$type}{'id2code'}{$codeset}{$id};
# Delete any aliases that are linked to this code
foreach my $alias (keys %{ $Data{$type}{'codealias'}{$codeset} }) {
next if ($Data{$type}{'codealias'}{$codeset}{$alias} ne $code);
delete $Data{$type}{'codealias'}{$codeset}{$alias};
}
# If this ID is not used in any other codeset, delete it completely.
foreach my $c (keys %{ $Data{$type}{'id2code'} }) {
return 1 if (exists $Data{$type}{'id2code'}{$c}{$id});
}
my @names = @{ $Data{$type}{'id2names'}{$id} };
delete $Data{$type}{'id2names'}{$id};
foreach my $name (@names) {
delete $Data{$type}{'alias2id'}{lc($name)};
}
return 1;
}
###############################################################################
# $flag = $o->add_alias (NAME,NEW_NAME)
#
# Add a new alias. NAME must exist, and NEW_NAME must be unused.
#
sub add_alias {
my($self,$name,$new_name) = @_;
# uncoverable branch true
if (! $$self{'type'}) {
# uncoverable statement
carp "ERROR: no type set for Locale::Codes object\n" if ($$self{'err'});
# uncoverable statement
return 0;
}
my $type = $$self{'type'};
# Check that $name is used and $new_name is new.
my($id);
if (exists $Data{$type}{'alias2id'}{lc($name)}) {
$id = $Data{$type}{'alias2id'}{lc($name)}[0];
} else {
carp "add_alias: name does not exist: $name\n" if ($$self{'err'});
return 0;
}
if (exists $Data{$type}{'alias2id'}{lc($new_name)}) {
carp "add_alias: alias already in use: $new_name\n" if ($$self{'err'});
return 0;
}
# Add the new alias
push @{ $Data{$type}{'id2names'}{$id} },$new_name;
my $i = $#{ $Data{$type}{'id2names'}{$id} };
$Data{$type}{'alias2id'}{lc($new_name)} = [ $id,$i ];
return 1;
}
###############################################################################
# $flag = $o->delete_alias (NAME)
#
# This deletes a name from the list of names used by an element.
# NAME must be used, but must NOT be the only name in the list.
#
# Any id2name that references this name will be changed to
# refer to the first name in the list.
#
sub delete_alias {
my($self,$name) = @_;
# uncoverable branch true
if (! $$self{'type'}) {
# uncoverable statement
carp "ERROR: no type set for Locale::Codes object\n" if ($$self{'err'});
# uncoverable statement
return 0;
}
my $type = $$self{'type'};
# Check that $name is used.
my($id,$i);
if (exists $Data{$type}{'alias2id'}{lc($name)}) {
($id,$i) = @{ $Data{$type}{'alias2id'}{lc($name)} };
} else {
carp "delete_alias: name does not exist: $name\n" if ($$self{'err'});
return 0;
}
my $n = $#{ $Data{$type}{'id2names'}{$id} } + 1;
if ($n == 1) {
carp "delete_alias: only one name defined (use delete_code instead)\n"
if ($$self{'err'});
return 0;
}
# Delete the alias.
splice (@{ $Data{$type}{'id2names'}{$id} },$i,1);
delete $Data{$type}{'alias2id'}{lc($name)};
# Every element that refers to this ID:
# Ignore if I < $i
# Set to 0 if I = $i
# Decrement if I > $i
foreach my $codeset (keys %{ $Data{$type}{'code2id'} }) {
foreach my $code (keys %{ $Data{$type}{'code2id'}{$codeset} }) {
my($jd,$j) = @{ $Data{$type}{'code2id'}{$codeset}{$code} };
next if ($jd ne $id ||
$j < $i);
if ($i == $j) {
$Data{$type}{'code2id'}{$codeset}{$code}[1] = 0;
} else {
$Data{$type}{'code2id'}{$codeset}{$code}[1]--;
}
}
}
return 1;
}
###############################################################################
# $flag = $o->replace_code (CODE,NEW_CODE [,CODESET])
#
# Change the official code. The original is retained as an alias, but
# the new code will be returned if do a name2code lookup.
#
sub replace_code {
my($self,$code,$new_code,$codeset) = @_;
# uncoverable branch true
if (! $$self{'type'}) {
# uncoverable statement
carp "ERROR: no type set for Locale::Codes object\n" if ($$self{'err'});
# uncoverable statement
return 0;
}
my $type = $$self{'type'};
# Make sure $code/$codeset are both valid (and that $new_code is the
# correct format)
my($err,$c,$cs) = $self->_code($code,$codeset);
if ($err) {
carp "ERROR: rename_code: Unknown code/codeset: $code [$codeset]\n"
if ($$self{'err'});
return 0;
}
($code,$codeset) = ($c,$cs);
($err,$new_code,$codeset) = $self->_code($new_code,$codeset,1);
# Cases:
# 1. Renaming code to an existing alias of this code:
# Make the alias real and the code an alias
#
# 2. Renaming code to some other existing alias:
# Error
#
# 3. Renaming code to some other code:
# Error (
#
# 4. Renaming code to a new code:
# Make code into an alias
# Replace code with new_code.
if (exists $Data{$type}{'codealias'}{$codeset}{$new_code}) {
# Cases 1 and 2
if ($Data{$type}{'codealias'}{$codeset}{$new_code} eq $code) {
# Case 1
delete $Data{$type}{'codealias'}{$codeset}{$new_code};
} else {
# Case 2
carp "rename_code: new code already in use: $new_code\n"
if ($$self{'err'});
return 0;
}
} elsif (exists $Data{$type}{'code2id'}{$codeset}{$new_code}) {
# Case 3
carp "rename_code: new code already in use: $new_code\n"
if ($$self{'err'});
return 0;
}
# Cases 1 and 4
$Data{$type}{'codealias'}{$codeset}{$code} = $new_code;
my $id = $Data{$type}{'code2id'}{$codeset}{$code}[0];
$Data{$type}{'code2id'}{$codeset}{$new_code} =
$Data{$type}{'code2id'}{$codeset}{$code};
delete $Data{$type}{'code2id'}{$codeset}{$code};
$Data{$type}{'id2code'}{$codeset}{$id} = $new_code;
return 1;
}
###############################################################################
# $flag = $o->add_code_alias (CODE,NEW_CODE [,CODESET])
#
# Adds an alias for the code.
#
sub add_code_alias {
my($self,$code,$new_code,$codeset) = @_;
# uncoverable branch true
if (! $$self{'type'}) {
# uncoverable statement
carp "ERROR: no type set for Locale::Codes object\n" if ($$self{'err'});
# uncoverable statement
return 0;
}
my $type = $$self{'type'};
# Make sure $code/$codeset are both valid and that the new code is
# properly formatted.
my($err,$c,$cs) = $self->_code($code,$codeset);
if ($err) {
carp "ERROR: add_code_alias: Unknown code/codeset: $code [$codeset]\n"
if ($$self{'err'});
return 0;
}
($code,$codeset) = ($c,$cs);
($err,$new_code,$cs) = $self->_code($new_code,$codeset,1);
# Check that $new_code does not exist.
if (exists $Data{$type}{'code2id'}{$codeset}{$new_code} ||
exists $Data{$type}{'codealias'}{$codeset}{$new_code}) {
# uncoverable branch true
carp "add_code_alias: code already in use: $new_code\n" if ($$self{'err'});
return 0;
}
# Add the alias
$Data{$type}{'codealias'}{$codeset}{$new_code} = $code;
return 1;
}
###############################################################################
# $flag = $o->delete_code_alias (ALIAS [,CODESET])
#
# Deletes an alias for the code.
#
sub delete_code_alias {
my($self,$code,$codeset) = @_;
# uncoverable branch true
if (! $$self{'type'}) {
# uncoverable statement
carp "ERROR: no type set for Locale::Codes object\n" if ($$self{'err'});
# uncoverable statement
return 0;
}
my $type = $$self{'type'};
# Make sure $code/$codeset are both valid
my($err,$c,$cs) = $self->_code($code,$codeset);
if ($err) {
# uncoverable branch true
carp "ERROR: rename: Unknown code/codeset: $code [$codeset]\n"
if ($$self{'err'});
return 0;
}
($code,$codeset) = ($c,$cs);
# Check that $code exists in the codeset as an alias.
if (! exists $Data{$type}{'codealias'}{$codeset}{$code}) {
# uncoverable branch true
carp "delete_code_alias(): no alias defined: $code\n" if ($$self{'err'});
return 0;
}
# Delete the alias
delete $Data{$type}{'codealias'}{$codeset}{$code};
return 1;
}
1;
# Local Variables:
# mode: cperl
# indent-tabs-mode: nil
# cperl-indent-level: 3
# cperl-continued-statement-offset: 2
# cperl-continued-brace-offset: 0
# cperl-brace-offset: 0
# cperl-brace-imaginary-offset: 0
# cperl-label-offset: 0
# End: