inCHISE

   1 #!/usr/bin/perl -w -CSD
   2
   3 # ver.0.2
   4
   5 use strict;
   6 use vars qw($omegadb_path
   7             $opt_protrude $opt_allow_unify
   8             $opt_use_kage_for_Ext_B
   9             %opt_order %order %order_map
  10             $opt_in_cs $opt_out_cs
  11             $opt_help $usage
  12             $in_cs $out_cs $i @chars
  13             $char $char_id $out_char
  14             $char_unified @chars_unified
  15             $ids $ids_argc %ids $idsdb $geta
  16             $idsdata_file $ids_start $font_start
  17             @CDP @HZK @GT
  18             );
  19 use Getopt::Long;
  20 use utf8;
  21 use Fcntl ':flock';
  22 use Chise_utils ':all';
  23 require 5.008;
  24
  25 ### Options ###
  26
  27 #$opt_order{'UniMulti'}='jcgk';
  28 $opt_order{'UniMulti'}='jGcgkHC';
  29 $opt_order{'UniCNS'}='c';
  30 $opt_order{'UniGB'}='g';
  31 $opt_order{'UniJIS'}='j';
  32 $opt_order{'UniKS'}='k';
  33
  34 $opt_allow_unify=1; # 1=true, 0=false.
  35 $opt_protrude=0;# 1=true, 0=false.
  36
  37 # currently does not work.
  38 $opt_use_kage_for_Ext_B=0;# 1=true, 0=false.
  39
  40 ### End ###
  41
  42 my $strictly_forbidden_after = '「【『［（〈“‘‘（〔｛《{\[\(\x{3016}｛｢';
  43 #       \x{3016} | # white 【
  44
  45 my $forbidden_after = "\x{0000}";
  46
  47 # ￥¥＄$〒♯＃#￠¢￡£＠@§
  48 my $slightly_forbidden_after = '￥¥＄$〒♯＃#￠¢￡£＠@§';
  49
  50 # $strictly_forbidden_before
  51 # All these characters are allowed to protrude
  52 # in the right margin
  53 my $strictly_forbidden_before=
  54     '!,.:;?、。！，．：；？。\)#}’”〉》」』】〕\x{3017}）］｝｝」\]';
  55 ###       \x{3017} | # white 】
  56
  57 my $forbidden_before
  58     = 'ー々ぁぃぅぇぉゃゅょっゎァィゥェォャュョッヮヵヶ';
  59
  60 my $slightly_forbidden_before
  61     = '\x{000a}\#\-‐−‰′″℃゛゜ゝゞヽヾ＂％－ﾞﾟ';
  62
  63 my $asian = '\x{1100}-\x{11FF}\x{2E80}-\x{D7AF}\x{F900}-\x{FAFF}\x{FE30}-\x{FE4F}\x{FF00}-\x{FFFFFF}'; # need to fix.
  64
  65 my $space = '\x{0020}\x{0009}\x{000A}\x{000C}\x{000D}';
  66
  67 my %tex_meta=('#'=>'\#',
  68               '$'=>'\\textdollar{}',
  69               '%'=>'\%',
  70               '&'=>'\&',
  71               '{'=>'\\textbraceleft{}',
  72               '}'=>'\\textbraceright{}',
  73               '\\'=>'\\textbackslash{}',
  74               '_'=>'\\textunderscore',
  75              );
  76
  77 my $tex_meta_re=join('|',map {quotemeta($_)} keys %tex_meta);
  78
  79 &GetOptions("in=s"=>\$opt_in_cs,
  80             "out=s"=>\$opt_out_cs,
  81             "help",\$opt_help);
  82
  83 $usage=<<EOF;
  84 Usage: $0 -i <input coding system> -o <cmap encoding>
  85     input coding system:
  86       Utf8mcs, Utf8cns, Utf8gb, Utf8jis, Utf8ks, Utf8big5
  87     cmap encoding:
  88       UniCNS, UniGB, UniJIS, UniKS, UniMulti
  89 EOF
  90
  91 if($opt_in_cs or $opt_out_cs){
  92     $in_cs=$opt_in_cs;
  93     $out_cs=$opt_out_cs;
  94 }elsif(@ARGV==0){
  95     ($in_cs,$out_cs)=($0=~/(Utf8.+)To(\w+)/);
  96 }
  97
  98 # $in_cs:
  99 #   Utf8mcs,Utf8cns,Utf8gb,Utf8jis,Utf8ks,Utf8big5
 100 # $out_cs:
 101 #   UniCNS,UniGB,UniJIS,UniKS,UniMulti
 102
 103 $in_cs=~s/Utf8/ucs\@/;
 104
 105 if($opt_help
 106    or not defined($in_cs)
 107    or not defined($out_cs)){
 108     print $usage;
 109     exit 1;
 110 }
 111
 112 $omegadb_path=~s!/$!!;
 113
 114 $idsdata_file="$omegadb_path/idsdata.pl";
 115 $ids_start=0x00;
 116 $font_start=0;
 117
 118 if(-e $idsdata_file){
 119     open(IDSDATA,"+<:utf8",$idsdata_file) or die;
 120     flock(IDSDATA,LOCK_EX);
 121     seek(IDSDATA,0,0);
 122     while(<IDSDATA>){
 123         eval $_;
 124     }
 125     seek(IDSDATA,0,0);
 126 #         require $idsdata_file;
 127 }else{
 128     open(IDSDATA,">:utf8",$idsdata_file) or die;
 129     flock(IDSDATA,LOCK_EX);
 130     seek(IDSDATA,0,0);
 131 }
 132
 133 $ids_argc=0;
 134 $ids="";
 135
 136 #$geta=pack("U",0x3013);
 137 $geta=pack("U",0xfffd);
 138
 139 @GT=(#"=gt","=gt-k",
 140      "=gt-pj-1","=gt-pj-2","=gt-pj-3","=gt-pj-4","=gt-pj-5",
 141      "=gt-pj-6","=gt-pj-7","=gt-pj-8","=gt-pj-9","=gt-pj-10",
 142      "=gt-pj-11"
 143      #,"=gt-pj-k1","=gt-pj-k2"
 144      );
 145 @HZK=("=hanziku-1","=hanziku-2","=hanziku-3","=hanziku-4",
 146       "=hanziku-5","=hanziku-6","=hanziku-7","=hanziku-8",
 147       "=hanziku-9","=hanziku-10","=hanziku-11","=hanziku-12");
 148 @CDP=("=big5-cdp");
 149
 150 %order_map=('c'=>'UniCNS',
 151             'g'=>'UniGB',
 152             'j'=>'UniJIS',
 153             'k'=>'UniKS',
 154             'G'=>'GT',
 155             'H'=>'HZK',
 156             'C'=>'CDP',
 157             );
 158
 159 foreach $out_cs ('UniCNS','UniGB','UniJIS','UniKS','UniMulti'){
 160     if(defined($opt_order{$out_cs})){
 161         if($opt_order{$out_cs}=~/^[cgjkGHC]+$/){
 162             @{$order{$out_cs}}=map {$order_map{$_}}
 163             (split(//,$opt_order{$out_cs}));
 164         }else{
 165             print STDERR "Invalid order for $out_cs!\n";
 166             exit 1;
 167         }
 168     }
 169 }
 170
 171 while(<>){
 172     utf8::decode($_);
 173
 174     if($in_cs ne 'ucs@mcs'){
 175         s/(.)/&get_char_in_mcs($1,$in_cs)/ge;
 176     }
 177     s/([$asian])\s+([$asian])/$1$2/g unless($out_cs eq 'UniKS');
 178     s/([$asian])\s*([^$asian])/$1 $2/g;
 179     s/([^$asian])\s*([$asian])/$1 $2/g;
 180     s/\-\-\-/pack("U",0x2014)/geo;# EM DASH
 181     s/\-\-/pack("U",0x2013)/geo;# EN DASH
 182     s/\`\`/pack("U",0x201f)/geo;# DOUBLE HIGH-REVERSED-9 QUOTATION MARK
 183     s/\`/pack("U",0x201b)/geo;# SINGLE HIGH-REVERSED-9 QUOTATION MARK
 184     s/\'\'/pack("U",0x201d)/geo;# RIGHT DOUBLE QUOTATION MARK
 185     s/\'/pack("U",0x2019)/geo;# RIGHT DOUBLE QUOTATION MARK
 186     s/(amp.+?;)/&de_tex_er($1)/ge;
 187 #    s/(&.+?;)/&de_tex_er($1)/ge;
 188     @chars=split(//);
 189   CHAR:
 190     for($i=0;$i<=$#chars;$i++){
 191         $char=$chars[$i];
 192         $char_id=unpack("U",$char);
 193
 194         if($char_id<=0x20){
 195             # add quarter space between asian and non-asian.
 196             if($i>0 and $i<$#chars){
 197                 if(($chars[$i-1]=~/[$asian]/
 198                     and $chars[$i+1]=~/[^$asian]/
 199                       and $chars[$i+1]=~/[^$strictly_forbidden_after$slightly_forbidden_after]/)
 200                    or($chars[$i-1]=~/[^$asian]/
 201                       and $chars[$i+1]=~/[$asian]/
 202                       and $chars[$i-1]=~/[^$strictly_forbidden_before$slightly_forbidden_before]/)
 203                    ){
 204                     print '';
 205                 }elsif(($chars[$i-1]=~/[$asian]/
 206                         and $chars[$i+1]=~/[^$asian]/)
 207                        or($chars[$i-1]=~/[^$asian]/
 208                           and $chars[$i+1]=~/[$asian]/)){
 209                     print '{\selectjisfont\hspace{.25ex}}';
 210                 }else{
 211                     print '{\fontencoding{OT1}\fontfamily{omlgc}\selectfont{} }';###UT1?
 212                 }
 213             }
 214             next CHAR;
 215         }elsif($char=~m/($tex_meta_re)/o){
 216             print $tex_meta{$1};
 217             next CHAR;
 218         }elsif(($char_id>0x20 and $char_id<=0x021f)
 219                # Basic Latin
 220                # Latin-1 Supplement
 221                # Latin Extended-A
 222                # Latin Extended-B (not all)
 223                or($char_id>=0x0250 and $char_id<=0x02af)
 224                # IPA Extensions
 225                or($char_id>=0x0300 and $char_id<=0x033f)
 226                or($char_id>=0x0360 and $char_id<=0x036f)
 227                # Combining Diacritical Marks
 228                or($char_id>=0x1e00 and $char_id<=0x1eff)
 229                # Latin Extended Additional
 230                or($char_id>=0x0370 and $char_id<=0x03ff)
 231                # Greek and Coptic
 232                or($char_id>=0x0400 and $char_id<=0x04ff)
 233                # Cyrillic
 234                or($char_id>=0x0530 and $char_id<=0x058f)
 235                # Armenian
 236                or($char_id>=0x2010 and $char_id<=0x2046)
 237                # General Punctuation (partial)
 238                ){
 239             print &latin_parse();
 240             next CHAR;
 241         }elsif($char_id>=0x2ff0 and $char_id<=0x2fff){
 242             # Ideographic Description Characters
 243             print &ids_parse();
 244             next CHAR;
 245         }else{
 246             if(($out_char=&get_output_char($char,$out_cs))){
 247                 print $out_char,&add_break($i);
 248             }else{
 249                 if($opt_allow_unify){
 250                     @chars_unified=&get_chars_unified($char);
 251                     if(@chars_unified>0){
 252                         foreach $char_unified (@chars_unified){
 253                             if(($out_char
 254                                 =&get_output_char($char_unified,$out_cs))){
 255                                 print $out_char,&add_break($i);
 256                                 next CHAR;
 257                             }
 258                         }
 259                     }
 260                 }
 261                 if($opt_use_kage_for_Ext_B){
 262                     if($char_id >= 0x20000 && $char_id <=0x2a6df){
 263                         # CJK Unified Ideographs Extension B
 264                         if(not defined($ids{$char}) and $ids{$char}[1]>=0){
 265                             $ids{$char}[0]=$font_start;
 266                             $ids{$char}[1]=$ids_start;
 267                             $ids_start++;
 268                             if($ids_start>255){
 269                                 $ids_start=0;
 270                                 $font_start++;
 271                             }
 272                         }
 273                         print "{\\fontencoding{OT1}\\fontfamily{" .
 274                             sprintf("chise%03d",$ids{$char}[0]) .
 275                                 "}\\selectfont\\char$ids{$char}[1]}",&add_break($i);
 276                         next CHAR;
 277                     }
 278                 }
 279                 if($ids=&get_ids($char)){
 280                     print &get_macro_for_ids($ids),&add_break($i);
 281                 }else{
 282                     print '\rule{1ex}{1ex}',&add_break($i);
 283                 }
 284             }
 285         }
 286     }
 287 }
 288
 289 print IDSDATA 'use utf8;',"\n";
 290 foreach $ids (keys %ids){
 291     print IDSDATA '$ids{\'',$ids,'\'}='
 292     ,'[',join ",",@{$ids{$ids}},"];\n";
 293 }
 294 print IDSDATA '$font_start=',$font_start,";\n";
 295 print IDSDATA '$ids_start=',$ids_start,";\n";
 296 print IDSDATA "1;";
 297 flock(IDSDATA,LOCK_UN);
 298
 299 exit 0;
 300
 301 sub de_tex_er{
 302     my($er)=@_;
 303     my($prefix,$suffix);
 304     my($output_char,$atr,$value);
 305     $er=~/^(amp)(.*)(;)$/
 306         and $prefix=$1,$er=$2,$suffix=$3;
 307     $prefix or $prefix="",$suffix or $suffix="";
 308     if($er=~/^U[\+|\-]([a-fA-F\d]+)/){
 309         $output_char=pack("U",hex($1));
 310     }elsif($er=~/^(?:I\-)?($er_prefix_re)\-?([0-9a-fA-F]+)$/){
 311         ($atr,$value)=($1,$2);
 312         unless($er_alias{$atr}=~/daikanwa|gt/){
 313             $value=hex($value);
 314         }
 315         ($output_char)=&get_chars_matching($er_alias{$atr},$value);
 316     }
 317     if($output_char){
 318         return $output_char;
 319     }else{
 320         return $prefix.$er.$suffix;
 321     }
 322 }
 323
 324 sub add_break{
 325     my($i)=@_;
 326
 327     if($i<($#chars-1)){
 328         if(($chars[$i+1]=~m/[$strictly_forbidden_before]/o)
 329            and($chars[$i+2]=~m/[$strictly_forbidden_before]/o)){
 330             return "\\CJKunbreakablekernone ";
 331         }elsif($opt_protrude){
 332             if(($chars[$i+1]=~m/[$strictly_forbidden_before]/o)
 333                and($chars[$i+2]=~m/[^$strictly_forbidden_before]/o)){
 334                 return "\\CJKunbreakablekernone \\CJKprotrude ";
 335             }
 336         }
 337     }
 338     if(($i<$#chars)
 339        and($chars[$i+1]eq" ")){
 340        # preserve space.
 341         return "";
 342     }
 343     if(($i<$#chars)
 344        and($chars[$i+1]=~m/[$strictly_forbidden_before]/o)){
 345         return "\\CJKunbreakablekernone ";
 346     }
 347     if($chars[$i]=~m/[$strictly_forbidden_after]/o){
 348         return "\\CJKunbreakablekernone ";
 349     }
 350     if(($i<$#chars)
 351        and($chars[$i+1]=~m/[$forbidden_before]/o)){
 352         return "\\CJKunbreakablekerntwo ";
 353
 354     }
 355     if($chars[$i]=~m/[$forbidden_after]/o){
 356         return "\\CJKunbreakablekerntwo ";
 357     }
 358     if(($i<$#chars)
 359        and($chars[$i+1]=~m/[$slightly_forbidden_before]/o)){
 360         return "\\CJKunbreakablekernthree ";
 361     }
 362     if($chars[$i]=~m/[$slightly_forbidden_after]/o){
 363         return "\\CJKunbreakablekernthree ";
 364     }
 365     if($chars[$i]=~m/[$asian]/o){
 366         return "\\CJKbreakablekern ";
 367     }
 368     if(($i<$#chars)and($chars[$i+1]=~m/[$asian]/o)){
 369         return "\\CJKbreakablekern ";
 370     }
 371 }
 372
 373 sub latin_parse{
 374     # arguments: none
 375     # return: string for output with TeX macro.
 376     my($char_id);
 377     my $out_str="";
 378     while($i<=$#chars){
 379         $char_id=unpack("U",$chars[$i]);
 380         if(($char_id>0x20 and $char_id<=0x021f)
 381            or($char_id>=0x0250 and $char_id<=0x02af)# IPA Extensions
 382            or($char_id>=0x0300 and $char_id<=0x033f)# Combining Diacritical Marks
 383            or($char_id>=0x0360 and $char_id<=0x036f)
 384            or($char_id>=0x0370 and $char_id<=0x03ff)# Greek and Coptic
 385            or($char_id>=0x0400 and $char_id<=0x04ff)# Cyrillic
 386            or($char_id>=0x0530 and $char_id<=0x058f)# Armenian
 387            ){
 388             $out_str.=$chars[$i];
 389         }elsif($char_id>=0x1e00 and $char_id<=0x1eff){
 390             # Latin Extended Additional
 391             # 0x1e00 -> 0x0600, etc.
 392             $out_str.=pack("U",$char_id-0x1800);
 393         }elsif($char_id>=0x2010 and $char_id<=0x2046){
 394             # General Punctuation (partial)
 395             $out_str.=pack("U",$char_id-0x1000);
 396         }else{
 397             $i--;
 398             last;
 399         }
 400         $i++;
 401     }
 402     return '{\fontencoding{OT1}\fontfamily{omlgc}\selectfont '.$out_str.'}';###UT1?
 403 }
 404
 405 sub ids_parse{
 406     # arguments: none
 407     # return: character for output,
 408     #          TeX macro for ids,
 409     #          or GETA character if ids is invalid.
 410     my($ids,$ids_argc)=&ids_rest("",0,$chars[$i]);
 411
 412     while($ids_argc>0){
 413         # We are in IDS.
 414         $i++;
 415         if($i>$#chars){
 416             print STDERR "IDS parse error: $ids\n";
 417             return $geta;
 418         }
 419
 420         ($ids,$ids_argc)=&ids_rest($ids,$ids_argc,$chars[$i]);
 421         if($ids_argc==0){
 422             if(($char=&get_char_for_ids($ids))
 423                and($out_char=&get_output_char($char,$out_cs))){
 424                 return $out_char;
 425             }else{
 426                 return &get_macro_for_ids($ids);
 427             }
 428         }
 429     }
 430 }
 431
 432 sub ids_rest{
 433     # arguments: <ids>, <rest number of arguments for ids>, <character>
 434     # return: ids and rest number of arguments for ids.
 435     my($ids,$ids_argc,$char)=@_;
 436     my($argc);
 437     $argc=&ids_argc($char);
 438     if($argc){
 439         $ids_argc+=$ids_argc==0?$argc:$argc-1;
 440     }else{
 441         $ids_argc--;
 442     }
 443     $ids.=$char;
 444     return ($ids,$ids_argc);
 445 }
 446
 447 sub get_macro_for_ids{
 448     # argument: <ids>
 449     # return: TeX macro for ids
 450     #          or GETA character if ids is invalid for KAGE.
 451     my($ids)=@_;
 452     # $ids=&normalize_ids($ids,"UniJIS");
 453     return $geta if(($ids!~/[$idc]/)
 454                     or($ids=~/[\x{10000}-]/));
 455                     #irregular for KAGE.
 456     if(not defined($ids{$ids})){
 457         $ids{$ids}[0]=$font_start;
 458         $ids{$ids}[1]=$ids_start;
 459         $ids_start++;
 460     }
 461     if($ids_start>255){
 462         $ids_start=0;
 463         $font_start++;
 464     }
 465     return "{\\fontencoding{OT1}\\fontfamily{"
 466         .sprintf("chise%03d",$ids{$ids}[0])
 467         ."}\\selectfont\\char$ids{$ids}[1]}";
 468 }
 469
 470 sub normalize_ids{
 471     # argument: <ids>, <output coding system>
 472     # return: ids or GETA character if ids is invalid for KAGE.
 473     my($ids,$out_cs)=@_;
 474     $out_cs=~s/Uni(.+)/'ucs@'.lc($1)/e;
 475
 476     my $output_ids="";
 477     my($char,$output_char_id);
 478     while($ids=~m/(.)/g){
 479         $char=$1;
 480         if($char=~/[$idc]/){
 481             $output_ids.=$char;
 482         }elsif($output_char_id=&get_char_attribute($char,"=$out_cs")
 483            or $output_char_id=&get_char_attribute($char,"=ucs")
 484            or $output_char_id=&get_char_attribute($char,"=>$out_cs")
 485            or $output_char_id=&get_char_attribute($char,"=>ucs")
 486            or $output_char_id=&get_char_attribute($char,"=>ucs*")
 487               ){
 488             $output_ids.=pack("U",$output_char_id);
 489         }else{
 490             return $geta;
 491         }
 492     }
 493     return $output_ids;
 494 }
 495
 496 sub get_output_char{
 497     # argument: <char>
 498     # return: character in output coding system or TeX macro or undef.
 499     my($char,$out_cs)=@_;
 500     my($out_char_id,$suffix);
 501     my($gt,$hzk,$cdp);
 502
 503     foreach $out_cs (@{$order{$out_cs}}){
 504         if($out_cs eq 'UniJIS'
 505            and &get_char_attribute($char,"vnd-adobe-cid-unijis-utf16-h")){
 506             if($out_char_id=&get_char_attribute($char,'=ucs@jis')
 507                or $out_char_id=&get_char_attribute($char,'=ucs')
 508                or $out_char_id=&get_char_attribute($char,'=>ucs@jis')
 509                or $out_char_id=&get_char_attribute($char,'=>ucs')
 510                or $out_char_id=&get_char_attribute($char,'=>ucs*')
 511                ){
 512                 return '{\selectjisfont\char'.$out_char_id.'}';
 513             }
 514         }elsif($out_cs eq 'UniGB'
 515                and &get_char_attribute($char,"vnd-adobe-cid-unigb-ucs2-h")){
 516             if($out_char_id=&get_char_attribute($char,'=ucs@gb')
 517                or $out_char_id=&get_char_attribute($char,'=ucs')
 518                or $out_char_id=&get_char_attribute($char,'=>ucs@gb')
 519                or $out_char_id=&get_char_attribute($char,'=>ucs')
 520                or $out_char_id=&get_char_attribute($char,'=>ucs*')
 521                ){
 522                 return '{\selectgbsfont\char'.$out_char_id.'}';
 523             }
 524         }elsif($out_cs eq 'UniCNS'
 525                and &get_char_attribute($char,"vnd-adobe-cid-unicns-ucs2-h")){
 526             if($out_char_id=&get_char_attribute($char,'=ucs@cns')
 527                or $out_char_id=&get_char_attribute($char,'=ucs')
 528                or $out_char_id=&get_char_attribute($char,'=>ucs@cns')
 529                or $out_char_id=&get_char_attribute($char,'=>ucs')
 530                or $out_char_id=&get_char_attribute($char,'=>ucs*')
 531                ){
 532                 return '{\selectcnsfont\char'.$out_char_id.'}';
 533             }
 534         }elsif($out_cs eq 'UniKS'
 535                and &get_char_attribute($char,"vnd-adobe-cid-uniks-ucs2-h")){
 536             if($out_char_id=&get_char_attribute($char,'=ucs@ks')
 537                or $out_char_id=&get_char_attribute($char,'=ucs')
 538                or $out_char_id=&get_char_attribute($char,'=>ucs@ks')
 539                or $out_char_id=&get_char_attribute($char,'=>ucs')
 540                or $out_char_id=&get_char_attribute($char,'=>ucs*')
 541                ){
 542                 return '{\selectksxfont\char'.$out_char_id.'}';
 543             }
 544         }elsif($out_cs eq 'GT'){
 545             return $gt if($gt=&get_macro_for_GT($char));
 546         }elsif($out_cs eq 'HZK'){
 547             return $hzk if($hzk=&get_macro_for_HZK($char));
 548         }elsif($out_cs eq 'CDP'){
 549             return $cdp if($cdp=&get_macro_for_CDP($char));
 550         }
 551     }
 552     return undef;
 553 }
 554
 555 sub get_ids{
 556     # argument: <character>
 557     # return: ids
 558     my($char)=@_;
 559     my $ids="";
 560     $ids=&get_char_attribute($char,"ids-aggregated")
 561         or $ids=&get_char_attribute($char,"ids");
 562 #    $ids=&get_char_attribute($char,"ids-decomposed")
 563 #       or $ids=&get_char_attribute($char,"ids");
 564 #         or $ids=&get_char_attribute($char,"ideographic-structure");
 565 #    $ids=~s/[? ()]//g;
 566     return $ids;
 567 }
 568
 569 sub get_char_for_ids{
 570     # argument: <ideographic description sequence>
 571     # return: char or undef.
 572     my($ids)=@_;
 573     my($output_char);
 574
 575     if(($output_char)=&get_chars_matching("ids",$ids)){
 576         return $output_char;
 577     }else{
 578         return undef;
 579     }
 580 }
 581
 582 sub get_char_in_mcs{
 583     # argument: <char>, <input coding system>
 584     # return:   char in ucs@mcs.
 585     my($char,$in_cs)=@_;
 586     my($output_char);
 587
 588     return $char if($in_cs eq 'ucs@mcs');
 589
 590     if(($output_char)=&get_chars_matching("=$in_cs",unpack("U",$char))){
 591         return $output_char;
 592     }else{
 593         return $char;
 594     }
 595 }
 596
 597 sub get_chars_unified{
 598     my($char)=@_;
 599     my($chars,$ucs,$char_ucs);
 600     my(@chars);
 601
 602     if($chars=&get_char_attribute($char,'->ucs-unified')){
 603         $chars=~s/^\((.*)\)$/$1/;
 604         return (split(/\s*\?/,$chars));
 605     }elsif($ucs=&get_char_attribute($char,'=>ucs*')
 606           or $ucs=&get_char_attribute($char,'=>ucs')){
 607         $char_ucs=pack("U",$ucs);
 608         if($chars=&get_char_attribute($char_ucs,'->ucs-unified')){
 609             $chars=~s/^\((.*)\)$/$1/;
 610             @chars=grep {not /^$char$/}
 611                 (split(/\s*\?/,$chars));
 612             push(@chars,$char_ucs);
 613             return @chars;
 614         }
 615     }
 616 }
 617
 618 sub get_macro_for_GT{
 619     # argument: <char>
 620     # return: TeX macro for GT fonts or undef.
 621     my($char)=@_;
 622     my($gt,$GT);
 623     foreach (@GT){
 624         if($gt=&get_char_attribute($char,$_)){
 625             m/gt\-pj\-(\d+)/ and $GT=$1;
 626             last;
 627         }
 628     }
 629     if($gt){
 630         return "{\\fontencoding{OT1}\\fontfamily{"
 631             .sprintf("gt%02d",$GT)
 632             ."}\\selectfont\\char".($gt|0x8080)."}";
 633     }else{
 634         return undef;
 635     }
 636 }
 637
 638 sub get_macro_for_HZK{
 639     # argument: <char>
 640     # return: TeX macro for Hanziku fonts or undef.
 641     my($char)=@_;
 642     my($hzk,$HZK);
 643     foreach (@HZK){
 644         if($hzk=&get_char_attribute($char,$_)){
 645             m/hanziku\-(\d+)/ and $HZK=$1;
 646             last;
 647         }
 648     }
 649     if($hzk){
 650         return "{\\fontencoding{OT1}\\fontfamily{".sprintf("hzk%02d",$HZK)."}\\selectfont\\char".$hzk."}";
 651     }else{
 652         return undef;
 653     }
 654 }
 655
 656 sub get_macro_for_CDP{
 657     # argument: <char>
 658     # return: TeX macro for CDP fonts or undef.
 659     my($char)=@_;
 660     my($cdp,$ucs);
 661     foreach (@CDP){
 662         if($cdp=&get_char_attribute($char,$_)){
 663             last;
 664         }
 665     }
 666     if($cdp){
 667         $ucs=&get_char_attribute(&get_chars_matching("=big5-pua",$cdp),"=ucs");
 668         if($ucs){
 669             return "{\\fontencoding{OT1}\\fontfamily{cdp}\\selectfont\\char"
 670                 .$ucs.
 671                     "}";
 672         }else{
 673             print STDERR "This should not happen.\n";
 674             print STDERR "ucs code point of CDP: $cdp not found.\n";
 675         }
 676     }else{
 677         return undef;
 678     }
 679 }