add quarter space between asian and non-asian.
[chise/omega.git] / 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     s/([$asian])\s+([$asian])/$1$2/g unless($out_cs eq 'UniKS');
175     s/([$asian])\s*([^$asian])/$1 $2/g;
176     s/([^$asian])\s*([$asian])/$1 $2/g;
177     if($in_cs ne 'ucs@mcs'){
178         s/(.)/&get_char_in_mcs($1,$in_cs)/ge;
179     }
180     s/(amp.+?;)/&de_tex_er($1)/ge;
181 #    s/(&.+?;)/&de_tex_er($1)/ge;
182     @chars=split(//);
183   CHAR:
184     for($i=0;$i<=$#chars;$i++){
185         $char=$chars[$i];
186         $char_id=unpack("U",$char);
187
188         if($char_id<=0x20){
189             # add quarter space between asian and non-asian.
190             if($i>0 and $i<$#chars){
191                 if((($chars[$i-1]=~/[$asian]/)
192                     and($chars[$i+1]=~/[^$asian]/))
193                    or(($chars[$i-1]=~/[^$asian]/)
194                       and($chars[$i+1]=~/[$asian]/))){
195                     print '{\selectjisfont\hspace{.25ex}}';
196                 }else{
197                     print " ";
198                 }
199             }
200             next CHAR;
201         }elsif($char=~m/($tex_meta_re)/o){
202             print $tex_meta{$1};
203             next CHAR;
204         }elsif(($char_id>0x20 and $char_id<=0x021f)
205                # Basic Latin
206                # Latin-1 Supplement
207                # Latin Extended-A
208                # Latin Extended-B (not all)
209                or($char_id>=0x0250 and $char_id<=0x02af)
210                # IPA Extensions
211                or($char_id>=0x0300 and $char_id<=0x033f)
212                or($char_id>=0x0360 and $char_id<=0x036f)
213                # Combining Diacritical Marks
214                or($char_id>=0x1e00 and $char_id<=0x1eff)
215                # Latin Extended Additional
216                or($char_id>=0x0370 and $char_id<=0x03ff)
217                # Greek and Coptic
218                or($char_id>=0x0400 and $char_id<=0x04ff)
219                # Cyrillic
220                or($char_id>=0x0530 and $char_id<=0x058f)
221                # Armenian
222                ){
223             print &latin_parse();
224             next CHAR;
225         }elsif($char_id>=0x2ff0 and $char_id<=0x2fff){
226             # Ideographic Description Characters
227             print &ids_parse();
228             next CHAR;
229         }else{
230             if(($out_char=&get_output_char($char,$out_cs))){
231                 print $out_char,&add_break($i);
232             }else{
233                 if($opt_allow_unify){
234                     @chars_unified=&get_chars_unified($char);
235                     if(@chars_unified>0){
236                         foreach $char_unified (@chars_unified){
237                             if(($out_char
238                                 =&get_output_char($char_unified,$out_cs))){
239                                 print $out_char,&add_break($i);
240                                 next CHAR;
241                             }
242                         }
243                     }
244                 }
245                 if($opt_use_kage_for_Ext_B){
246                     if($char_id >= 0x20000 && $char_id <=0x2a6df){
247                         # CJK Unified Ideographs Extension B
248                         if(not defined($ids{$char}) and $ids{$char}[1]>=0){
249                             $ids{$char}[0]=$font_start;
250                             $ids{$char}[1]=$ids_start;
251                             $ids_start++;
252                             if($ids_start>255){
253                                 $ids_start=0;
254                                 $font_start++;
255                             }
256                         }
257                         print "{\\fontencoding{OT1}\\fontfamily{" .
258                             sprintf("chise%03d",$ids{$char}[0]) .
259                                 "}\\selectfont\\char$ids{$char}[1]}",&add_break($i);
260                         next CHAR;
261                     }
262                 }
263                 if($ids=&get_ids($char)){
264                     print &get_macro_for_ids($ids),&add_break($i);
265                 }else{
266                     print '\rule{1ex}{1ex}',&add_break($i);
267                 }
268             }
269         }
270     }
271 }
272
273 print IDSDATA 'use utf8;',"\n";
274 foreach $ids (keys %ids){
275     print IDSDATA '$ids{\'',$ids,'\'}='
276     ,'[',join ",",@{$ids{$ids}},"];\n";
277 }
278 print IDSDATA '$font_start=',$font_start,";\n";
279 print IDSDATA '$ids_start=',$ids_start,";\n";
280 print IDSDATA "1;";
281 flock(IDSDATA,LOCK_UN);
282
283 exit 0;
284
285 sub de_tex_er{
286     my($er)=@_;
287     my($prefix,$suffix);
288     my($output_char,$atr,$value);
289     $er=~/^(amp)(.*)(;)$/
290         and $prefix=$1,$er=$2,$suffix=$3;
291     $prefix or $prefix="",$suffix or $suffix="";
292     if($er=~/^U[\+|\-]([a-fA-F\d]+)/){
293         $output_char=pack("U",hex($1));
294     }elsif($er=~/^(?:I\-)?($er_prefix_re)\-?([0-9a-fA-F]+)$/){
295         ($atr,$value)=($1,$2);
296         unless($er_alias{$atr}=~/daikanwa|gt/){
297             $value=hex($value);
298         }
299         ($output_char)=&get_chars_matching($er_alias{$atr},$value);
300     }
301     if($output_char){
302         return $output_char;
303     }else{
304         return $prefix.$er.$suffix;
305     }
306 }
307
308 sub add_break{
309     my($i)=@_;
310
311     if($i<($#chars-1)){
312         if(($chars[$i+1]=~m/[$strictly_forbidden_before]/o)
313            and($chars[$i+2]=~m/[$strictly_forbidden_before]/o)){
314             return "\\CJKunbreakablekernone ";
315         }elsif($opt_protrude){
316             if(($chars[$i+1]=~m/[$strictly_forbidden_before]/o)
317                and($chars[$i+2]=~m/[^$strictly_forbidden_before]/o)){
318                 return "\\CJKunbreakablekernone \\CJKprotrude ";
319             }
320         }
321     }
322     if(($i<$#chars)
323        and($chars[$i+1]eq" ")){
324        # preserve space.
325         return "";
326     }
327     if(($i<$#chars)
328        and($chars[$i+1]=~m/[$strictly_forbidden_before]/o)){
329         return "\\CJKunbreakablekernone ";
330     }
331     if($chars[$i]=~m/[$strictly_forbidden_after]/o){
332         return "\\CJKunbreakablekernone ";
333     }
334     if(($i<$#chars)
335        and($chars[$i+1]=~m/[$forbidden_before]/o)){
336         return "\\CJKunbreakablekerntwo ";
337
338     }
339     if($chars[$i]=~m/[$forbidden_after]/o){
340         return "\\CJKunbreakablekerntwo ";
341     }
342     if(($i<$#chars)
343        and($chars[$i+1]=~m/[$slightly_forbidden_before]/o)){
344         return "\\CJKunbreakablekernthree ";
345     }
346     if($chars[$i]=~m/[$slightly_forbidden_after]/o){
347         return "\\CJKunbreakablekernthree ";
348     }
349     if($chars[$i]=~m/[$asian]/o){
350         return "\\CJKbreakablekern ";
351     }
352     if(($i<$#chars)and($chars[$i+1]=~m/[$asian]/o)){
353         return "\\CJKbreakablekern ";
354     }
355 }
356
357 sub latin_parse{
358     # arguments: none
359     # return: string for output with TeX macro.
360     my($char_id);
361     my $out_str=$chars[$i];
362     $i++;
363     while($i<=$#chars){
364         $char_id=unpack("U",$chars[$i]);
365         if(($char_id>0x20 and $char_id<=0x021f)
366            or($char_id>=0x0250 and $char_id<=0x02af)# IPA Extensions
367            or($char_id>=0x0300 and $char_id<=0x033f)# Combining Diacritical Marks
368            or($char_id>=0x0360 and $char_id<=0x036f)
369            or($char_id>=0x0370 and $char_id<=0x03ff)# Greek and Coptic
370            or($char_id>=0x0400 and $char_id<=0x04ff)# Cyrillic
371            or($char_id>=0x0530 and $char_id<=0x058f)# Armenian
372            ){
373             $out_str.=$chars[$i];
374         }elsif($char_id>=0x1e00 and $char_id<=0x1eff){
375             # Latin Extended Additional
376             # 0x1e00 -> 0x0600, etc.
377             $out_str.=pack("U",$char_id-0x1800);
378         }else{
379             $i--;
380             last;
381         }
382         $i++;
383     }
384     return '{\fontencoding{UT1}\fontfamily{omlgc}\selectfont '.$out_str.'}';
385 }
386
387 sub ids_parse{
388     # arguments: none
389     # return: character for output,
390     #          TeX macro for ids,
391     #          or GETA character if ids is invalid.
392     my($ids,$ids_argc)=&ids_rest("",0,$chars[$i]);
393
394     while($ids_argc>0){
395         # We are in IDS.
396         $i++;
397         if($i>$#chars){
398             print STDERR "IDS parse error: $ids\n";
399             return $geta;
400         }
401
402         ($ids,$ids_argc)=&ids_rest($ids,$ids_argc,$chars[$i]);
403         if($ids_argc==0){
404             if(($char=&get_char_for_ids($ids))
405                and($out_char=&get_output_char($char,$out_cs))){
406                 return $out_char;
407             }else{
408                 return &get_macro_for_ids($ids);
409             }
410         }
411     }
412 }
413
414 sub ids_rest{
415     # arguments: <ids>, <rest number of arguments for ids>, <character>
416     # return: ids and rest number of arguments for ids.
417     my($ids,$ids_argc,$char)=@_;
418     my($argc);
419     $argc=&ids_argc($char);
420     if($argc){
421         $ids_argc+=$ids_argc==0?$argc:$argc-1;
422     }else{
423         $ids_argc--;
424     }
425     $ids.=$char;
426     return ($ids,$ids_argc);
427 }
428
429 sub get_macro_for_ids{
430     # argument: <ids>
431     # return: TeX macro for ids
432     #          or GETA character if ids is invalid for KAGE.
433     my($ids)=@_;
434     # $ids=&normalize_ids($ids,"UniJIS");
435     return $geta if(($ids!~/[$idc]/)
436                     or($ids=~/[\x{10000}-]/));
437                     #irregular for KAGE.
438     if(not defined($ids{$ids})){
439         $ids{$ids}[0]=$font_start;
440         $ids{$ids}[1]=$ids_start;
441         $ids_start++;
442     }
443     if($ids_start>255){
444         $ids_start=0;
445         $font_start++;
446     }
447     return "{\\fontencoding{OT1}\\fontfamily{"
448         .sprintf("chise%03d",$ids{$ids}[0])
449         ."}\\selectfont\\char$ids{$ids}[1]}";
450 }
451
452 sub normalize_ids{
453     # argument: <ids>, <output coding system>
454     # return: ids or GETA character if ids is invalid for KAGE.
455     my($ids,$out_cs)=@_;
456     $out_cs=~s/Uni(.+)/'ucs@'.lc($1)/e;
457
458     my $output_ids="";
459     my($char,$output_char_id);
460     while($ids=~m/(.)/g){
461         $char=$1;
462         if($char=~/[$idc]/){
463             $output_ids.=$char;
464         }elsif($output_char_id=&get_char_attribute($char,"=$out_cs")
465            or $output_char_id=&get_char_attribute($char,"=ucs")
466            or $output_char_id=&get_char_attribute($char,"=>$out_cs")
467            or $output_char_id=&get_char_attribute($char,"=>ucs")
468            or $output_char_id=&get_char_attribute($char,"=>ucs*")
469               ){
470             $output_ids.=pack("U",$output_char_id);
471         }else{
472             return $geta;
473         }
474     }
475     return $output_ids;
476 }
477
478 sub get_output_char{
479     # argument: <char>
480     # return: character in output coding system or TeX macro or undef.
481     my($char,$out_cs)=@_;
482     my($out_char_id,$suffix);
483     my($gt,$hzk,$cdp);
484
485     foreach $out_cs (@{$order{$out_cs}}){
486         if($out_cs eq 'UniJIS'
487            and &get_char_attribute($char,"vnd-adobe-cid-unijis-utf16-h")){
488             if($out_char_id=&get_char_attribute($char,'=ucs@jis')
489                or $out_char_id=&get_char_attribute($char,'=ucs')
490                or $out_char_id=&get_char_attribute($char,'=>ucs@jis')
491                or $out_char_id=&get_char_attribute($char,'=>ucs')
492                or $out_char_id=&get_char_attribute($char,'=>ucs*')
493                ){
494                 return '{\selectjisfont\char'.$out_char_id.'}';
495             }
496         }elsif($out_cs eq 'UniGB'
497                and &get_char_attribute($char,"vnd-adobe-cid-unigb-ucs2-h")){
498             if($out_char_id=&get_char_attribute($char,'=ucs@gb')
499                or $out_char_id=&get_char_attribute($char,'=ucs')
500                or $out_char_id=&get_char_attribute($char,'=>ucs@gb')
501                or $out_char_id=&get_char_attribute($char,'=>ucs')
502                or $out_char_id=&get_char_attribute($char,'=>ucs*')
503                ){
504                 return '{\selectgbsfont\char'.$out_char_id.'}';
505             }
506         }elsif($out_cs eq 'UniCNS'
507                and &get_char_attribute($char,"vnd-adobe-cid-unicns-ucs2-h")){
508             if($out_char_id=&get_char_attribute($char,'=ucs@cns')
509                or $out_char_id=&get_char_attribute($char,'=ucs')
510                or $out_char_id=&get_char_attribute($char,'=>ucs@cns')
511                or $out_char_id=&get_char_attribute($char,'=>ucs')
512                or $out_char_id=&get_char_attribute($char,'=>ucs*')
513                ){
514                 return '{\selectcnsfont\char'.$out_char_id.'}';
515             }
516         }elsif($out_cs eq 'UniKS'
517                and &get_char_attribute($char,"vnd-adobe-cid-uniks-ucs2-h")){
518             if($out_char_id=&get_char_attribute($char,'=ucs@ks')
519                or $out_char_id=&get_char_attribute($char,'=ucs')
520                or $out_char_id=&get_char_attribute($char,'=>ucs@ks')
521                or $out_char_id=&get_char_attribute($char,'=>ucs')
522                or $out_char_id=&get_char_attribute($char,'=>ucs*')
523                ){
524                 return '{\selectksxfont\char'.$out_char_id.'}';
525             }
526         }elsif($out_cs eq 'GT'){
527             return $gt if($gt=&get_macro_for_GT($char));
528         }elsif($out_cs eq 'HZK'){
529             return $hzk if($hzk=&get_macro_for_HZK($char));
530         }elsif($out_cs eq 'CDP'){
531             return $cdp if($cdp=&get_macro_for_CDP($char));
532         }
533     }
534     return undef;
535 }
536
537 sub get_ids{
538     # argument: <character>
539     # return: ids
540     my($char)=@_;
541     my $ids="";
542     $ids=&get_char_attribute($char,"ids-aggregated")
543         or $ids=&get_char_attribute($char,"ids");
544 #    $ids=&get_char_attribute($char,"ids-decomposed")
545 #       or $ids=&get_char_attribute($char,"ids");
546 #         or $ids=&get_char_attribute($char,"ideographic-structure");
547 #    $ids=~s/[? ()]//g;
548     return $ids;
549 }
550
551 sub get_char_for_ids{
552     # argument: <ideographic description sequence>
553     # return: char or undef.
554     my($ids)=@_;
555     my($output_char);
556
557     if(($output_char)=&get_chars_matching("ids",$ids)){
558         return $output_char;
559     }else{
560         return undef;
561     }
562 }
563
564 sub get_char_in_mcs{
565     # argument: <char>, <input coding system>
566     # return:   char in ucs@mcs.
567     my($char,$in_cs)=@_;
568     my($output_char);
569
570     return $char if($in_cs eq 'ucs@mcs');
571
572     if(($output_char)=&get_chars_matching("=$in_cs",unpack("U",$char))){
573         return $output_char;
574     }else{
575         return $char;
576     }
577 }
578
579 sub get_chars_unified{
580     my($char)=@_;
581     my($chars,$ucs,$char_ucs);
582     my(@chars);
583
584     if($chars=&get_char_attribute($char,'->ucs-unified')){
585         $chars=~s/^\((.*)\)$/$1/;
586         return (split(/\s*\?/,$chars));
587     }elsif($ucs=&get_char_attribute($char,'=>ucs*')
588           or $ucs=&get_char_attribute($char,'=>ucs')){
589         $char_ucs=pack("U",$ucs);
590         if($chars=&get_char_attribute($char_ucs,'->ucs-unified')){
591             $chars=~s/^\((.*)\)$/$1/;
592             @chars=grep {not /^$char$/}
593                 (split(/\s*\?/,$chars));
594             push(@chars,$char_ucs);
595             return @chars;
596         }
597     }
598 }
599
600 sub get_macro_for_GT{
601     # argument: <char>
602     # return: TeX macro for GT fonts or undef.
603     my($char)=@_;
604     my($gt,$GT);
605     foreach (@GT){
606         if($gt=&get_char_attribute($char,$_)){
607             m/gt\-pj\-(\d+)/ and $GT=$1;
608             last;
609         }
610     }
611     if($gt){
612         return "{\\fontencoding{OT1}\\fontfamily{"
613             .sprintf("gt%02d",$GT)
614             ."}\\selectfont\\char".($gt|0x8080)."}";
615     }else{
616         return undef;
617     }
618 }
619
620 sub get_macro_for_HZK{
621     # argument: <char>
622     # return: TeX macro for Hanziku fonts or undef.
623     my($char)=@_;
624     my($hzk,$HZK);
625     foreach (@HZK){
626         if($hzk=&get_char_attribute($char,$_)){
627             m/hanziku\-(\d+)/ and $HZK=$1;
628             last;
629         }
630     }
631     if($hzk){
632         return "{\\fontencoding{OT1}\\fontfamily{".sprintf("hzk%02d",$HZK)."}\\selectfont\\char".$hzk."}";
633     }else{
634         return undef;
635     }
636 }
637
638 sub get_macro_for_CDP{
639     # argument: <char>
640     # return: TeX macro for CDP fonts or undef.
641     my($char)=@_;
642     my($cdp,$ucs);
643     foreach (@CDP){
644         if($cdp=&get_char_attribute($char,$_)){
645             last;
646         }
647     }
648     if($cdp){
649         $ucs=&get_char_attribute(&get_chars_matching("=big5-pua",$cdp),"=ucs");
650         if($ucs){
651             return "{\\fontencoding{OT1}\\fontfamily{cdp}\\selectfont\\char"
652                 .$ucs.
653                     "}";
654         }else{
655             print STDERR "This should not happen.\n";
656             print STDERR "ucs code point of CDP: $cdp not found.\n";
657         }
658     }else{
659         return undef;
660     }
661 }