#! /usr/bin/perl
#
# Copyright (c) 2001-2017, PostgreSQL Global Development Group
#
# src/backend/utils/mb/Unicode/UCS_to_SJIS.pl
#
# Generate UTF-8 <=> SJIS code conversion radix tree Generate UTF-8
# <=> SJIS code conversion radix tree Unfortunately it is prohibited
# by the organization to distribute the map files. So if you try to
# use this script, you have to obtain CP932.TXT from the organization's
# ftp site.

use strict;
use convutils;

my $this_script = $0;

my $mapping = read_source("CP932.TXT");

# Drop these SJIS codes from the source for UTF8=>SJIS conversion
my @reject_sjis =(
	0xed40..0xeefc, 0x8754..0x875d, 0x878a, 0x8782,
	0x8784, 0xfa5b, 0xfa54, 0x8790..0x8792, 0x8795..0x8797,
	0x879a..0x879c
);

foreach my $i (@$mapping)
{
	my $code = $i->{code};
	my $ucs = $i->{ucs};

	if (grep {$code == $_} @reject_sjis)
	{
		$i->{direction} = TO_UNICODE;
	}
}

# Add these UTF8->SJIS pairs to the table.
push @$mapping, (
	{direction => FROM_UNICODE, ucs => 0x00a2, code => 0x8191, comment => '# CENT SIGN', f => $this_script, l => __LINE__ },
	{direction => FROM_UNICODE, ucs => 0x00a3, code => 0x8192, comment => '# POUND SIGN', f => $this_script, l => __LINE__ },
	{direction => FROM_UNICODE, ucs => 0x00a5, code => 0x5c,   comment => '# YEN SIGN', f => $this_script, l => __LINE__ },
	{direction => FROM_UNICODE, ucs => 0x00ac, code => 0x81ca, comment => '# NOT SIGN', f => $this_script, l => __LINE__ },
	{direction => FROM_UNICODE, ucs => 0x2016, code => 0x8161, comment => '# DOUBLE VERTICAL LINE', f => $this_script, l => __LINE__ },
	{direction => FROM_UNICODE, ucs => 0x203e, code => 0x7e,   comment => '# OVERLINE', f => $this_script, l => __LINE__ },
	{direction => FROM_UNICODE, ucs => 0x2212, code => 0x817c, comment => '# MINUS SIGN', f => $this_script, l => __LINE__ },
	{direction => FROM_UNICODE, ucs => 0x301c, code => 0x8160, comment => '# WAVE DASH', f => $this_script, l => __LINE__ }
	);

print_conversion_tables($this_script, "SJIS", $mapping);