/[suikacvs]/perl/lib/Encode/ISO2022.pm
Suika

Diff of /perl/lib/Encode/ISO2022.pm

Parent Directory Parent Directory | Revision Log Revision Log | View Patch Patch

revision 1.8 by wakaba, Sat Oct 12 11:03:00 2002 UTC revision 1.9 by wakaba, Mon Oct 14 06:58:35 2002 UTC
# Line 48  require Encode::Charset; Line 48  require Encode::Charset;
48          *CHARSET = \%Encode::Charset::CHARSET;          *CHARSET = \%Encode::Charset::CHARSET;
49          *CODING_SYSTEM = \%Encode::Charset::CODING_SYSTEM;          *CODING_SYSTEM = \%Encode::Charset::CODING_SYSTEM;
50    
 ### --- Intialization  
   
 my %_CHARS_to_RANGE = (  
         l94     => q/[\x21-\x7E]/,  
         l96     => q/[\x20-\x7F]/,  
         l128    => q/[\x00-\x7F]/,  
         l256    => q/[\x00-\xFF]/,  
         r94     => q/[\xA1-\xFE]/,  
         r96     => q/[\xA0-\xFF]/,  
         r128    => q/[\x80-\xFF]/,  
         r256    => q/[\x80-\xFF]/,  
         b94     => q/[\x21-\x7E\xA1-\xFE]/,  
         b96     => q/[\x20-\x7F\xA0-\xFF]/,  
         b128    => q/[\x00-\xFF]/,  
         b256    => q/[\x00-\xFF]/,  
 );  
   
51  ### --- Perl Encode module common functions  ### --- Perl Encode module common functions
52    
53  sub encode ($$;$) {  sub encode ($$;$) {
# Line 87  sub iso2022_to_internal ($;\%) { Line 70  sub iso2022_to_internal ($;\%) {
70    my ($s, $C) = @_;    my ($s, $C) = @_;
71    $C ||= &new_object;    $C ||= &new_object;
72    my $t = '';    my $t = '';
73    $s =~ s{    $s =~ s{^((?:(?!\x1B\x25\x2F?[\x30-\x7E]).)*)}{
     ^((?:(?!\x1B\x25\x2F?[\x30-\x7E]).)*)  
   }{  
74      my $i2 = $1;      my $i2 = $1;
75      $t = _iso2022_to_internal ($i2, $C);      $t = _iso2022_to_internal ($i2, $C);
76      '';      '';
77    }gesx;    }es;
78    my $pad = '';    my $pad = '';
79    use re 'eval';    use re 'eval';
80    $s =~ s{    $s =~ s{
# Line 142  sub iso2022_to_internal ($;\%) { Line 123  sub iso2022_to_internal ($;\%) {
123    $t . $s;    $t . $s;
124  }  }
125    
126    # this is very very trickey.  my perl 5.8.0 does not process
127    # regex with eval except the first time (i think it's a bug
128    # of perl), so we redefine this function whenever being called!
129    # when this unexpected behavior is fixed or someone finds
130    # better way to avoid it, we will rewrite this code.
131    &_iso2022_to_internal (undef);
132  sub _iso2022_to_internal ($;\%) {  sub _iso2022_to_internal ($;\%) {
133      eval q{ sub __iso2022_to_internal ($;\%) { 0 } };
134      eval q{
135    sub __iso2022_to_internal ($;\%) {
136      use re 'eval';
137    my ($s, $C) = @_;    my ($s, $C) = @_;
138    my %_GB_to_GN = (    my %_GB_to_GN = (
139      "\x28"=>'G0',"\x29"=>'G1',"\x2A"=>'G2',"\x2B"=>'G3',      "\x28"=>'G0',"\x29"=>'G1',"\x2A"=>'G2',"\x2B"=>'G3',
140      "\x2C"=>'G0',"\x2D"=>'G1',"\x2E"=>'G2',"\x2F"=>'G3',      "\x2C"=>'G0',"\x2D"=>'G1',"\x2E"=>'G2',"\x2F"=>'G3',
141    );    );
142      my %_CHARS_to_RANGE = (
143            l94     => q/[\x21-\x7E]/,      l96     => q/[\x20-\x7F]/,
144            l128    => q/[\x00-\x7F]/,      l256    => q/[\x00-\xFF]/,
145            r94     => q/[\xA1-\xFE]/,      r96     => q/[\xA0-\xFF]/,
146            r128    => q/[\x80-\xFF]/,      r256    => q/[\x80-\xFF]/,
147            b94     => q/[\x21-\x7E\xA1-\xFE]/,     b96     => q/[\x20-\x7F\xA0-\xFF]/,
148            b128    => q/[\x00-\xFF]/,      b256    => q/[\x00-\xFF]/,
149      );
150        
   use re 'eval';  
151    $s =~ s{    $s =~ s{
152       ((??{ $_CHARS_to_RANGE{'l'.$C->{$C->{GL}}->{chars}}       ((??{ $_CHARS_to_RANGE{'l'.$C->{$C->{GL}}->{chars}}
153           . qq/{$C->{$C->{GL}}->{dimension},$C->{$C->{GL}}->{dimension}}/ }))           . qq/{$C->{$C->{GL}}->{dimension},$C->{$C->{GL}}->{dimension}}/ }))
154      |((??{ $_CHARS_to_RANGE{'r'.$C->{$C->{GR}}->{chars}}      |((??{ $_CHARS_to_RANGE{'r'.$C->{$C->{GR}}->{chars}}
155           . qq/{$C->{$C->{GR}}->{dimension},$C->{$C->{GR}}->{dimension}}/ }))           . qq/{$C->{$C->{GR}}->{dimension},$C->{$C->{GR}}->{dimension}}/  }))
156      |  (??{ q/(?:/ . ($C->{$C->{CR}}->{r_SS2} || '(?!)')      |  (??{ q/(?:/ . ($C->{$C->{CR}}->{r_SS2} || '(?!)')
157               . ($C->{$C->{ESC_Fe}}->{r_SS2_ESC} ?               . ($C->{$C->{ESC_Fe}}->{r_SS2_ESC} ?
158                   qq/|$C->{$C->{ESC_Fe}}->{r_SS2_ESC}/ : '')                   qq/|$C->{$C->{ESC_Fe}}->{r_SS2_ESC}/ : '')
# Line 164  sub _iso2022_to_internal ($;\%) { Line 162  sub _iso2022_to_internal ($;\%) {
162               qq/[$C->{$C->{CL}}->{r_LS0}$C->{$C->{CL}}->{r_LS1}]*/:'')               qq/[$C->{$C->{CL}}->{r_LS0}$C->{$C->{CL}}->{r_LS1}]*/:'')
163          })          })
164        ((??{ $_CHARS_to_RANGE{'b'.$C->{G2}->{chars}}        ((??{ $_CHARS_to_RANGE{'b'.$C->{G2}->{chars}}
165              . qq/{$C->{G2}->{dimension},$C->{G2}->{dimension}}/ }))           . qq/{$C->{G2}->{dimension},$C->{G2}->{dimension}}/ }))
166      |  (??{ q/(?:/ . ($C->{$C->{CR}}->{r_SS3} || '(?!)')      |  (??{ q/(?:/ . ($C->{$C->{CR}}->{r_SS3} || '(?!)')
167               . ($C->{$C->{ESC_Fe}}->{r_SS3_ESC} ?               . ($C->{$C->{ESC_Fe}}->{r_SS3_ESC} ?
168                  qq/|$C->{$C->{ESC_Fe}}->{r_SS3_ESC}/ : '')                  qq/|$C->{$C->{ESC_Fe}}->{r_SS3_ESC}/ : '')
# Line 326  sub _iso2022_to_internal ($;\%) { Line 324  sub _iso2022_to_internal ($;\%) {
324        $csi =~ s/$C->{$C->{CL}}->{LS1}//g if $C->{$C->{CL}}->{LS1};        $csi =~ s/$C->{$C->{CL}}->{LS1}//g if $C->{$C->{CL}}->{LS1};
325        "\x9B".$csi;        "\x9B".$csi;
326      }      }
327    }gex;    }gesx;
328    $s;    $s;
329  }  } # __iso2022_to_internal
330    
331      };
332      &__iso2022_to_internal (@_) if defined $_[0];
333    
334    } # _iso2022_to_internal
335    
336  sub internal_to_iso2022 ($\%) {  sub internal_to_iso2022 ($\%) {
337    my ($s, $C) = @_;    my ($s, $C) = @_;
# Line 336  sub internal_to_iso2022 ($\%) { Line 339  sub internal_to_iso2022 ($\%) {
339        
340    my $r = '';    my $r = '';
341    for my $c (split //, $s) {    for my $c (split //, $s) {
342      my $cc = ord $c;      my $cc = ord $c;  Encode::_utf8_off ($c);
343      my $t;      my $t;
344      if ($cc <= 0x1F) {      if ($cc <= 0x1F) {
345        $t = _i2c ($c, $C, type => 'C0', charset => '@');        $t = _i2c ($c, $C, type => 'C0', charset => '@');
Legend:
Removed from v.1.8  
changed lines
  Added in v.1.9
admin@suikawiki.org
 ViewVC Help
Powered by ViewVC 1.1.24