postgres/src/backend/utils/mb/Unicode/UCS_to_SJIS.pl

127 lines
2.8 KiB
Perl
Executable File

#! /usr/bin/perl
#
# Copyright (c) 2001-2003, PostgreSQL Global Development Group
#
# $PostgreSQL: pgsql/src/backend/utils/mb/Unicode/UCS_to_SJIS.pl,v 1.5 2003/11/29 22:40:01 pgsql Exp $
#
# Generate UTF-8 <--> SJIS code conversion tables from
# map files provided by Unicode organization.
# Unfortunately it is prohibited by the organization
# to distribute the map files. So if you try to use this script,
# you have to obtain SHIFTJIS.TXT from
# the organization's ftp site.
#
# SHIFTJIS.TXT format:
# SHIFTJIS code in hex
# UCS-2 code in hex
# # and Unicode name (not used in this script)
# Warning: SHIFTJIS.TXT contains only JIS0201 and JIS0208. no JIS0212.
require "ucs2utf.pl";
# first generate UTF-8 --> SJIS table
$in_file = "CP932.TXT";
$count = 0;
open( FILE, $in_file ) || die( "cannot open $in_file" );
while( <FILE> ){
chop;
if( /^#/ ){
next;
}
( $c, $u, $rest ) = split;
$ucs = hex($u);
$code = hex($c);
if( $code >= 0x80 && $ucs >= 0x0080 ){
$utf = &ucs2utf($ucs);
if((( $code >= 0xed40 )
&& ( $code <= 0xeefc ))
|| (( $code >= 0x8754 )
&&( $code <= 0x875d ))
|| ( $code == 0x878a )
|| ( $code == 0x8782 )
|| ( $code == 0x8784 )
|| ( $code == 0xfa5b )
|| ( $code == 0xfa54 )
|| (( $code >= 0x8790 )
&& ( $code <= 0x8792 ))
|| (( $code >= 0x8795 )
&& ( $code <= 0x8797 ))
|| (( $code >= 0x879a )
&& ( $code <= 0x879c )))
{
printf STDERR "Warning: duplicate unicode : UCS=0x%04x SJIS=0x%04x\n",$ucs,$code;
next;
}
$count++;
$array{ $utf } = $code;
}
}
close( FILE );
#
# first, generate UTF8 --> SJIS table
#
$file = "utf8_to_sjis.map";
open( FILE, "> $file" ) || die( "cannot open $file" );
print FILE "static pg_utf_to_local ULmapSJIS[ $count ] = {\n";
for $index ( sort {$a <=> $b} keys( %array ) ){
$code = $array{ $index };
$count--;
if( $count == 0 ){
printf FILE " {0x%04x, 0x%04x}\n", $index, $code;
} else {
printf FILE " {0x%04x, 0x%04x},\n", $index, $code;
}
}
print FILE "};\n";
close(FILE);
#
# then generate SJIS --> UTF8 table
#
open( FILE, $in_file ) || die( "cannot open $in_file" );
reset 'array';
$count = 0;
while( <FILE> ){
chop;
if( /^#/ ){
next;
}
( $c, $u, $rest ) = split;
$ucs = hex($u);
$code = hex($c);
if( $code >= 0x80 && $ucs >= 0x0080 ){
$utf = &ucs2utf($ucs);
$count++;
$array{ $code } = $utf;
}
}
close( FILE );
$file = "sjis_to_utf8.map";
open( FILE, "> $file" ) || die( "cannot open $file" );
print FILE "static pg_local_to_utf LUmapSJIS[ $count ] = {\n";
for $index ( sort {$a <=> $b} keys( %array ) ){
$utf = $array{ $index };
$count--;
if( $count == 0 ){
printf FILE " {0x%04x, 0x%04x}\n", $index, $utf;
} else {
printf FILE " {0x%04x, 0x%04x},\n", $index, $utf;
}
}
print FILE "};\n";
close(FILE);