112 lines
2.3 KiB
Perl
112 lines
2.3 KiB
Perl
#! /usr/bin/perl
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#
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# Copyright (c) 2001-2003, PostgreSQL Global Development Group
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#
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# $Id: UCS_to_UHC.pl,v 1.2 2003/08/04 23:59:39 tgl Exp $
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#
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# Generate UTF-8 <--> BIG5 code conversion tables from
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# map files provided by Unicode organization.
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# Unfortunately it is prohibited by the organization
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# to distribute the map files. So if you try to use this script,
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# you have to obtain OLD5601.TXT from
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# the organization's ftp site.
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#
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# CP949.TXT format:
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# UHC code in hex
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# UCS-2 code in hex
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# # and Unicode name (not used in this script)
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require "ucs2utf.pl";
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# first generate UTF-8 --> WIN949 table
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$in_file = "CP949.TXT";
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open( FILE, $in_file ) || die( "cannot open $in_file" );
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while( <FILE> ){
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chop;
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if( /^#/ ){
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next;
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}
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( $c, $u, $rest ) = split;
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$ucs = hex($u);
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$code = hex($c);
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if( $code >= 0x80 && $ucs >= 0x0080 ){
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$utf = &ucs2utf($ucs);
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if( $array{ $utf } ne "" ){
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printf STDERR "Warning: duplicate unicode: %04x\n",$ucs;
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next;
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}
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$count++;
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$array{ $utf } = $code;
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}
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}
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close( FILE );
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#
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# first, generate UTF8 --> UHC table
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#
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$file = "utf8_to_uhc.map";
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open( FILE, "> $file" ) || die( "cannot open $file" );
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print FILE "static pg_utf_to_local ULmapUHC[ $count ] = {\n";
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for $index ( sort {$a <=> $b} keys( %array ) ){
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$code = $array{ $index };
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$count--;
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if( $count == 0 ){
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printf FILE " {0x%04x, 0x%04x}\n", $index, $code;
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} else {
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printf FILE " {0x%04x, 0x%04x},\n", $index, $code;
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}
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}
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print FILE "};\n";
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close(FILE);
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#
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# then generate UHC --> UTF8 table
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#
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reset 'array';
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open( FILE, $in_file ) || die( "cannot open $in_file" );
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while( <FILE> ){
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chop;
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if( /^#/ ){
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next;
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}
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( $c, $u, $rest ) = split;
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$ucs = hex($u);
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$code = hex($c);
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if( $code >= 0x80 && $ucs >= 0x0080 ){
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$utf = &ucs2utf($ucs);
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if( $array{ $code } ne "" ){
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printf STDERR "Warning: duplicate code: %04x\n",$ucs;
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next;
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}
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$count++;
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$array{ $code } = $utf;
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}
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}
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close( FILE );
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$file = "uhc_to_utf8.map";
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open( FILE, "> $file" ) || die( "cannot open $file" );
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print FILE "static pg_local_to_utf LUmapUHC[ $count ] = {\n";
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for $index ( sort {$a <=> $b} keys( %array ) ){
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$utf = $array{ $index };
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$count--;
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if( $count == 0 ){
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printf FILE " {0x%04x, 0x%04x}\n", $index, $utf;
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} else {
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printf FILE " {0x%04x, 0x%04x},\n", $index, $utf;
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}
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}
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print FILE "};\n";
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close(FILE);
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