/[suikacvs]/perl/lib/Encode/Charset.pm
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revision 1.2 by wakaba, Sat Sep 21 01:34:08 2002 UTC revision 1.7 by wakaba, Wed Dec 18 10:21:09 2002 UTC
# Line 67  for my $f (0x30..0x5F, 0x7E) { Line 67  for my $f (0x30..0x5F, 0x7E) {
67      $CHARSET{G96n}->{ $_.$F }->{chars} = 96;      $CHARSET{G96n}->{ $_.$F }->{chars} = 96;
68      $CHARSET{G96n}->{ $_.$F }->{ucs} =      $CHARSET{G96n}->{ $_.$F }->{ucs} =
69        ({'' => 0xF4C000}->{ $_ }||0) + 96*96 * ($f-0x30);        ({'' => 0xF4C000}->{ $_ }||0) + 96*96 * ($f-0x30);
70        ## BUG: 94^n DRCSes with I byte have no mapping area        ## BUG: 96^n DRCSes with I byte have no mapping area
71    }    }
72  }  }
73      $CHARSET{G94n}->{"\x20\x40"}->{ucs} = 0x70460000;     ## DRCS 94^2 04/00
74      $CHARSET{G94n}->{P4_0} = $CHARSET{G94n}->{"\x20\x40"};
75      
76  for (0x60..0x6F) {  for (0x60..0x6F) {
77    my $F = pack 'C', $_;    my $F = pack 'C', $_;
78    ## BUG: 9x^3 sets have no mapping area    ## BUG: 9x^3 sets have no mapping area
# Line 106  $CHARSET{G96}->{A}->{ucs} = 0xA0;      ## ISO Line 109  $CHARSET{G96}->{A}->{ucs} = 0xA0;      ## ISO
109  $CHARSET{G94n}->{'B@'}->{dimension} = 2;        ## JIS X 0208-1990  $CHARSET{G94n}->{'B@'}->{dimension} = 2;        ## JIS X 0208-1990
110  $CHARSET{G94n}->{'B@'}->{chars} = 94;  $CHARSET{G94n}->{'B@'}->{chars} = 94;
111  $CHARSET{G94n}->{'B@'}->{ucs} = 0xE9F6C0 + 94*94*79;  $CHARSET{G94n}->{'B@'}->{ucs} = 0xE9F6C0 + 94*94*79;
112      
113      ## SJIS G3 mapping (JIS X 0213:2000 plane 2)
114      $CHARSET{G94n}->{"\x50"}->{Csjis_kuE} = { # ku - 1
115        0xF0 => 7,  0xF1 => 3,  0xF2 => 11, 0xF3 => 13, 0xF4 => 77,
116        0xF5 => 79, 0xF6 => 81, 0xF7 => 83, 0xF8 => 85, 0xF9 => 87,
117        0xFA => 89, 0xFB => 91, 0xFC => 93,
118      };
119      $CHARSET{G94n}->{"\x50"}->{Csjis_kuO} = { # ku - 1
120        0xF0  => 0,  0xF1 => 2,  0xF2 => 4,  0xF3 => 12, 0xF4 => 14,
121        0xF5  => 78, 0xF6 => 80, 0xF7 => 82, 0xF8 => 84, 0xF9 => 86,
122        0xFA  => 88, 0xFB => 90, 0xFC => 92,
123      };
124      $CHARSET{G94n}->{"\x50"}->{Csjis_first} = { reverse (
125        %{ $CHARSET{G94n}->{"\x50"}->{Csjis_kuE} },
126        %{ $CHARSET{G94n}->{"\x50"}->{Csjis_kuO} },
127      )};
128      
129    ## -- Control character sets    ## -- Control character sets
130    $CHARSET{C0}->{'@'}->{ucs} = 0x00;    ## ISO/IEC 6429 C0    $CHARSET{C0}->{'@'}->{ucs} = 0x00;    ## ISO/IEC 6429 C0
131    for ("\x40", "\x43", "\x44", "\x45", "\x46", "\x49", "\x4A", "\x4B", "\x4C") {    for ("\x40", "\x43", "\x44", "\x45", "\x46", "\x49", "\x4A", "\x4B", "\x4C") {
# Line 184  sub make_charset (%) { Line 203  sub make_charset (%) {
203  sub new_object {  sub new_object {
204    my %C;    my %C;
205    $C{bit} = 8;    $C{bit} = 8;
206      $C{coding_system} = $CODING_SYSTEM{"\x40"};   ## ISO/IEC 2022
207    $C{CL} = 'C0'; $C{CR} = 'C1'; $C{ESC_Fe} = 'C1';    $C{CL} = 'C0'; $C{CR} = 'C1'; $C{ESC_Fe} = 'C1';
208    $C{C0} = $CHARSET{C0}->{"\x40"};      ## ISO/IEC 6429:1991 C0    $C{C0} = $CHARSET{C0}->{"\x40"};      ## ISO/IEC 6429:1991 C0
209    $C{C1} = $CHARSET{C1}->{'64291991C1'};        ## ISO/IEC 6429:1991 C1    $C{C1} = $CHARSET{C1}->{'64291991C1'};        ## ISO/IEC 6429:1991 C1
# Line 193  sub new_object { Line 213  sub new_object {
213    $C{G1} = $CHARSET{G94}->{"\x7E"};     ## empty set    $C{G1} = $CHARSET{G94}->{"\x7E"};     ## empty set
214    $C{G2} = $CHARSET{G94}->{"\x7E"};     ## empty set    $C{G2} = $CHARSET{G94}->{"\x7E"};     ## empty set
215    $C{G3} = $CHARSET{G94}->{"\x7E"};     ## empty set    $C{G3} = $CHARSET{G94}->{"\x7E"};     ## empty set
   $C{coding_system} = $CODING_SYSTEM{"\x40"};   ## ISO/IEC 2022  
216    $C{option} = {    $C{option} = {
217          C1invoke_to_right       => 0,   ## C1 invoked to: (0: ESC Fe, 1: CR)          C1invoke_to_right       => 0,   ## C1 invoked to: (0: ESC Fe, 1: CR)
218          G94n_designate_long     => 0,   ## (1: ESC 02/04 02/08 04/00..02)          G94n_designate_long     => 0,   ## (1: ESC 02/04 02/08 04/00..02)
219          designate_to    => {    ## Designated G buffer (-1: not be outputed)          designate_to    => {    ## Designated G buffer (-1: not to be outputed)
220                  C0      => {                  C0      => {
221                          default => 0,                          default => 0,
222                  },                  },
# Line 221  sub new_object { Line 240  sub new_object {
240                          default => -1,                          default => -1,
241                  },                  },
242          },          },
243            fallback_from_ucs       => 'replacement',
244                    ## 'replacement' / 'perl' / 'sgml' / 'sgml-hex' / 'x-u-escaped' / 'code'
245                    ## / 'quiet' / 'quiet+back' / 'quiet+warn' / 'quiet+back+warn' / 'croak'
246                    ## / code
247            final_to_set    => {
248                    C0 => {}, C1 => {}, G94 => {}, G94n => {},
249                    G96 => {}, G96n => {}, coding_system => {},
250            },
251          Ginvoke_by_single_shift => [0,0,0,0],   ## Invoked by SS          Ginvoke_by_single_shift => [0,0,0,0],   ## Invoked by SS
252          Ginvoke_to_left => [1,1,1,1],   ## Which invoked to? (1: L, 0: R)          Ginvoke_to_left => [1,1,1,1],   ## Which invoked to? (1: L, 0: R)
253          private_set     => {    ## Private set vs Final byte          private_set     => {    ## Private set vs Final byte
254                  C0      => [],                  C0      => [],
255                  C1      => [],                  C1      => [],
256                  G94     => [],                  G94     => [],
257                  G94n    => [[],[],[],[],[]],                  G94n    => [[],[],[],[],["\x20\x40"]],
258                  G96     => [],                  G96     => [],
259                  #G96n   => [],  ## (not implemented)                  #G96n   => [],  ## (not implemented)
260                  U96n    => [],  ## mule-unicode sets                  U96n    => [],  ## mule-unicode sets
# Line 245  sub new_object { Line 272  sub new_object {
272    \%C;    \%C;
273  }  }
274    
275  1;  sub new_object_sjis {
276  __END__    my $C = &new_object;
277      $C->{coding_system} = $CODING_SYSTEM{Csjis};
278      $C->{CR} = undef;
279      $C->{GR} = 'G2';      ## 0xA1-0xDF
280      $C->{G0} = $CHARSET{G94}->{J};        ## JIS X 0201:1997 Latin
281      $C->{G1} = $CHARSET{G94n}->{"\x4F"};  ## JIS X 0213:2000
282      $C->{G2} = $CHARSET{G94}->{I};        ## JIS X 0201:1997 Katakana
283      $C->{G3} = $CHARSET{G94n}->{"\x50"};  ## JIS X 0213:2000 plane 2
284      ## Special code area (0xFD-0xFF)
285      $C->{Gsmap} = {"\xA0" => "\x{F8F0}", "\xFD" => "\x{F8F1}", "\xFE" => "\x{F8F2}", "\xFF" => "\x{F8F3}"};
286      $C->{GsmapR} = {};    ## Reversed table
287      $C->{option}->{undef_char_sjis} = "\x81\xAC";
288      $C;
289    }
290    
291    our %FallbackFromUCS = (
292            perl    => sub { my $c = $_[2]; sprintf '\x{%04X}', ord $c },
293            sgml    => sub { my $c = $_[2]; sprintf '&#%d;', ord $c },
294            'sgml-hex'      => sub { my $c = $_[2]; sprintf '&#x%04X;', ord $c },
295            'x-u-escaped'   => sub { my $c = $_[2]; my $C = ord $c; sprintf $C > 0xFFFF ? '\U%08X' : '\u%04X', $C },
296    );
297    
298    sub fallback_escape ($$$;%) {
299      my (undef, $C, $c, %option) = @_;
300      my $f = $option{fallback_from_ucs} ?
301                (ref ($option{fallback_from_ucs}) eq 'CODE' ? $option{fallback_from_ucs} :
302                 $FallbackFromUCS{$option{fallback_from_ucs}}):
303                (ref ($C->{option}->{fallback_from_ucs}) eq 'CODE' ? $C->{option}->{fallback_from_ucs} :
304                 $FallbackFromUCS{$C->{option}->{fallback_from_ucs}});
305      if (ref $f) {
306        return undef if $option{_recursive} <= -10;  $option{_recursive}--; ## To avoid loop
307        my $self = bless {}, __PACKAGE__;
308        Encode::_utf8_on ($c);
309        return &$f ($self, $C, $c, \%option);
310      }
311      undef;
312    }
313    
314  =head1 AUTHORS  =head1 AUTHORS
315    
316  Nanashi-san  Nanashi-san <nanashi-san@nanashi.invalid>
317    
318  Wakaba <w@suika.fam.cx>  Wakaba <w@suika.fam.cx>
319    
320  =head1 LICENSE  =head1 LICENSE
321    
322  Copyright 2002 AUTHORS  Copyright 2002 AUTHORS, all rights reserved.
323    
324  This library is free software; you can redistribute it  This library is free software; you can redistribute it
325  and/or modify it under the same terms as Perl itself.  and/or modify it under the same terms as Perl itself.
326    
327  =cut  =cut
328    
329  # $Date$  1; # $Date$
 ### Charset.pm ends here  
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