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#
# $Id: Constants.pm,v 1.1 2000/11/15 05:44:53 dankogai Exp $
#
package Jcode::Constants;
use strict;
use vars qw($RCSID $VERSION);
$RCSID = q$Id: Constants.pm,v 1.1 2000/11/15 05:44:53 dankogai Exp $;
$VERSION = do { my @r = (q$Revision: 1.1 $ =~ /\d+/g); sprintf "%d."."%02d" x $#r, @r };
use Carp;
BEGIN {
use Exporter;
use vars qw(@ISA @EXPORT @EXPORT_OK %EXPORT_TAGS);
@ISA = qw(Exporter);
@EXPORT = qw();
@EXPORT_OK = qw(&_max &_mkbuf %CHARCODE %ESC %RE);
%EXPORT_TAGS = ( 'all' => [ @EXPORT_OK, @EXPORT ] );
}
use vars @EXPORT_OK;
my %_0208 = (
1978 => '\e\$\@',
1983 => '\e\$B',
1990 => '\e&\@\e\$B',
);
%CHARCODE = (
UNDEF_EUC => "\xa2\xae", # �� in EUC
UNDEF_SJIS => "\x81\xac", # �� in SJIS
UNDEF_JIS => "\xa2\xf7", # �� -- used in unicode
UNDEF_UNICODE => "\x20\x20", # �� -- used in unicode
);
%ESC = (
JIS_0208 => "\e\$B",
JIS_0212 => "\e\$(D",
ASC => "\e\(B",
KANA => "\e\(I",
);
%RE =
(
ASCII => '[\x00-\x7f]',
BIN => '[\x00-\x06\x7f\xff]',
EUC_0212 => '\x8f[\xa1-\xfe][\xa1-\xfe]',
EUC_C => '[\xa1-\xfe][\xa1-\xfe]',
EUC_KANA => '\x8e[\xa1-\xdf]',
JIS_0208 => "$_0208{1978}|$_0208{1983}|$_0208{1990}",
JIS_0212 => "\e" . '\$\(D',
JIS_ASC => "\e" . '\([BJ]',
JIS_KANA => "\e" . '\(I',
SJIS_C => '[\x81-\x9f\xe0-\xfc][\x40-\x7e\x80-\xfc]',
SJIS_KANA => '[\xa1-\xdf]',
UTF8 => '[\xc0-\xdf][\x80-\xbf]|[\xe0-\xef][\x80-\xbf][\x80-\xbf]'
);
#
# Util. Functions
#
# Make buffer when and only when necessary
sub _mkbuf {
my $thingy = shift;
if (ref $thingy){
return $thingy;
}
else{
my $buf = $thingy;
return \$buf;
}
}
sub _max {
my $result = shift;
for my $n (@_){
$result = $n if $n > $result;
}
return $result;
}
1;
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