#
# $Id: H2Z.pm,v 1.2 2007/03/11 11:45:47 takezoe Exp $
#

package Jcode::H2Z;

use strict;
use vars qw($RCSID $VERSION);

$RCSID = q$Id: H2Z.pm,v 1.2 2007/03/11 11:45:47 takezoe Exp $;
$VERSION = do { my @r = (q$Revision: 1.2 $ =~ /\d+/g); sprintf "%d."."%02d" x $#r, @r };

use Carp;

use Jcode::Constants qw(:all);

use vars qw(%_D2Z  $_PAT_D2Z
	    %_Z2D  $_PAT_Z2D
	    %_H2Z  $_PAT_H2Z
	    %_Z2H  $_PAT_Z2H);

%_H2Z = (
	 "\x8e\xa1"	=>	"\xa1\xa3",	#。
	 "\x8e\xa2"	=>	"\xa1\xd6",	#≈
	 "\x8e\xa3"	=>	"\xa1\xd7",	#∽
	 "\x8e\xa4"	=>	"\xa1\xa2",	#、
	 "\x8e\xa5"	=>	"\xa1\xa6",	#ˇ
	 "\x8e\xa6"	=>	"\xa5\xf2",	#ヲ
	 "\x8e\xa7"	=>	"\xa5\xa1",	#ァ
	 "\x8e\xa8"	=>	"\xa5\xa3",	#ィ
	 "\x8e\xa9"	=>	"\xa5\xa5",	#ゥ
	 "\x8e\xaa"	=>	"\xa5\xa7",	#ェ
	 "\x8e\xab"	=>	"\xa5\xa9",	#ォ
	 "\x8e\xac"	=>	"\xa5\xe3",	#ャ
	 "\x8e\xad"	=>	"\xa5\xe5",	#ュ
	 "\x8e\xae"	=>	"\xa5\xe7",	#ョ
	 "\x8e\xaf"	=>	"\xa5\xc3",	#ッ
	 "\x8e\xb0"	=>	"\xa1\xbc",	#〖
	 "\x8e\xb1"	=>	"\xa5\xa2",	#ア
	 "\x8e\xb2"	=>	"\xa5\xa4",	#イ
	 "\x8e\xb3"	=>	"\xa5\xa6",	#ウ
	 "\x8e\xb4"	=>	"\xa5\xa8",	#エ
	 "\x8e\xb5"	=>	"\xa5\xaa",	#オ
	 "\x8e\xb6"	=>	"\xa5\xab",	#カ
	 "\x8e\xb7"	=>	"\xa5\xad",	#キ
	 "\x8e\xb8"	=>	"\xa5\xaf",	#ク
	 "\x8e\xb9"	=>	"\xa5\xb1",	#ケ
	 "\x8e\xba"	=>	"\xa5\xb3",	#コ
	 "\x8e\xbb"	=>	"\xa5\xb5",	#サ
	 "\x8e\xbc"	=>	"\xa5\xb7",	#シ
	 "\x8e\xbd"	=>	"\xa5\xb9",	#ス
	 "\x8e\xbe"	=>	"\xa5\xbb",	#セ
	 "\x8e\xbf"	=>	"\xa5\xbd",	#ソ
	 "\x8e\xc0"	=>	"\xa5\xbf",	#タ
	 "\x8e\xc1"	=>	"\xa5\xc1",	#チ
	 "\x8e\xc2"	=>	"\xa5\xc4",	#ツ
	 "\x8e\xc3"	=>	"\xa5\xc6",	#テ
	 "\x8e\xc4"	=>	"\xa5\xc8",	#ト
	 "\x8e\xc5"	=>	"\xa5\xca",	#ナ
	 "\x8e\xc6"	=>	"\xa5\xcb",	#ニ
	 "\x8e\xc7"	=>	"\xa5\xcc",	#ヌ
	 "\x8e\xc8"	=>	"\xa5\xcd",	#ネ
	 "\x8e\xc9"	=>	"\xa5\xce",	#ノ
	 "\x8e\xca"	=>	"\xa5\xcf",	#ハ
	 "\x8e\xcb"	=>	"\xa5\xd2",	#ヒ
	 "\x8e\xcc"	=>	"\xa5\xd5",	#フ
	 "\x8e\xcd"	=>	"\xa5\xd8",	#ヘ
	 "\x8e\xce"	=>	"\xa5\xdb",	#ホ
	 "\x8e\xcf"	=>	"\xa5\xde",	#マ
	 "\x8e\xd0"	=>	"\xa5\xdf",	#ミ
	 "\x8e\xd1"	=>	"\xa5\xe0",	#ム
	 "\x8e\xd2"	=>	"\xa5\xe1",	#メ
	 "\x8e\xd3"	=>	"\xa5\xe2",	#モ
	 "\x8e\xd4"	=>	"\xa5\xe4",	#ヤ
	 "\x8e\xd5"	=>	"\xa5\xe6",	#ユ
	 "\x8e\xd6"	=>	"\xa5\xe8",	#ヨ
	 "\x8e\xd7"	=>	"\xa5\xe9",	#ラ
	 "\x8e\xd8"	=>	"\xa5\xea",	#リ
	 "\x8e\xd9"	=>	"\xa5\xeb",	#ル
	 "\x8e\xda"	=>	"\xa5\xec",	#レ
	 "\x8e\xdb"	=>	"\xa5\xed",	#ロ
	 "\x8e\xdc"	=>	"\xa5\xef",	#ワ
	 "\x8e\xdd"	=>	"\xa5\xf3",	#ン
	 "\x8e\xde"	=>	"\xa1\xab",	#～
	 "\x8e\xdf"	=>	"\xa1\xac",	#‖
);

%_D2Z = (
	 "\x8e\xb6\x8e\xde"	=>	"\xa5\xac",	#ガ
	 "\x8e\xb7\x8e\xde"	=>	"\xa5\xae",	#ギ
	 "\x8e\xb8\x8e\xde"	=>	"\xa5\xb0",	#グ
	 "\x8e\xb9\x8e\xde"	=>	"\xa5\xb2",	#ゲ
	 "\x8e\xba\x8e\xde"	=>	"\xa5\xb4",	#ゴ
	 "\x8e\xbb\x8e\xde"	=>	"\xa5\xb6",	#ザ
	 "\x8e\xbc\x8e\xde"	=>	"\xa5\xb8",	#ジ
	 "\x8e\xbd\x8e\xde"	=>	"\xa5\xba",	#ズ
	 "\x8e\xbe\x8e\xde"	=>	"\xa5\xbc",	#ゼ
	 "\x8e\xbf\x8e\xde"	=>	"\xa5\xbe",	#ゾ
	 "\x8e\xc0\x8e\xde"	=>	"\xa5\xc0",	#ダ
	 "\x8e\xc1\x8e\xde"	=>	"\xa5\xc2",	#ヂ
	 "\x8e\xc2\x8e\xde"	=>	"\xa5\xc5",	#ヅ
	 "\x8e\xc3\x8e\xde"	=>	"\xa5\xc7",	#デ
	 "\x8e\xc4\x8e\xde"	=>	"\xa5\xc9",	#ド
	 "\x8e\xca\x8e\xde"	=>	"\xa5\xd0",	#バ
	 "\x8e\xcb\x8e\xde"	=>	"\xa5\xd3",	#ビ
	 "\x8e\xcc\x8e\xde"	=>	"\xa5\xd6",	#ブ
	 "\x8e\xcd\x8e\xde"	=>	"\xa5\xd9",	#ベ
	 "\x8e\xce\x8e\xde"	=>	"\xa5\xdc",	#ボ
	 "\x8e\xca\x8e\xdf"	=>	"\xa5\xd1",	#パ
	 "\x8e\xcb\x8e\xdf"	=>	"\xa5\xd4",	#ピ
	 "\x8e\xcc\x8e\xdf"	=>	"\xa5\xd7",	#プ
	 "\x8e\xcd\x8e\xdf"	=>	"\xa5\xda",	#ペ
	 "\x8e\xce\x8e\xdf"	=>	"\xa5\xdd",	#ポ
	 "\x8e\xb3\x8e\xde"     =>      "\xa5\xf4",     #ヴ
);

# init only once;

#$_PAT_D2Z = join("|", keys %_D2Z);
#$_PAT_H2Z = join("|", keys %_H2Z);

%_Z2H = reverse %_H2Z;
%_Z2D = reverse %_D2Z;

#$_PAT_Z2H    = join("|", keys %_Z2H);
#$_PAT_Z2D    = join("|", keys %_Z2D);

sub h2z {
    my $r_str = shift;
    my ($keep_dakuten) = @_;
    my $n = 0;
    unless ($keep_dakuten){
	$n = (
	      $$r_str =~ s(
			   ($RE{EUC_KANA}
			    (?:\x8e[\xde\xdf])?)
			   ){
		  my $str = $1;
		  $_D2Z{$str} || $_H2Z{$str} || 
		      # in case dakuten and handakuten are side-by-side!
		      $_H2Z{substr($str,0,2)} . $_H2Z{substr($str,2,2)};
		  }eogx
	      );
    }else{
	$n = (
	      $$r_str =~ s(
			   ($RE{EUC_KANA})
			   ){
		  $_H2Z{$1};
		  }eogx
	      );
    }
    $n;
}

sub z2h {
    my $r_str = shift;
    my $n = (
	     $$r_str =~ s(
			  ($RE{EUC_C}|$RE{EUC_0212}|$RE{EUC_KANA})
			  ){
		 $_Z2D{$1} || $_Z2H{$1} || $1;
		 }eogx
	     );
    $n;
}

1;