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1 | package Encode::JP::JIS; |
2 | use Encode::JP; |
3 | use base 'Encode::Encoding'; |
4 | |
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5 | use strict; |
6 | |
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7 | # Just for the time being, we implement jis-7bit |
8 | # encoding via EUC |
9 | |
10 | my $canon = '7bit-jis'; |
11 | my $obj = bless {name => $canon}, __PACKAGE__; |
12 | $obj->Define($canon); |
13 | |
14 | sub decode |
15 | { |
16 | my ($obj,$str,$chk) = @_; |
17 | my $res = $str; |
18 | jis_euc(\$res); |
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19 | return Encode::decode('euc-jp', $res, $chk); |
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20 | } |
21 | |
22 | sub encode |
23 | { |
24 | my ($obj,$str,$chk) = @_; |
25 | my $res = Encode::encode('euc-jp', $str, $chk); |
26 | euc_jis(\$res); |
27 | return $res; |
28 | } |
29 | |
30 | use Encode::JP::Constants qw(:all); |
31 | |
32 | # JIS<->EUC |
33 | |
34 | sub jis_euc { |
35 | my $r_str = shift; |
36 | $$r_str =~ s( |
37 | ($RE{JIS_0212}|$RE{JIS_0208}|$RE{JIS_ASC}|$RE{JIS_KANA}) |
38 | ([^\e]*) |
39 | ) |
40 | { |
41 | my ($esc, $str) = ($1, $2); |
42 | if ($esc !~ /$RE{JIS_ASC}/o) { |
43 | $str =~ tr/\x21-\x7e/\xa1-\xfe/; |
44 | if ($esc =~ /$RE{JIS_KANA}/o) { |
45 | $str =~ s/([\xa1-\xdf])/\x8e$1/og; |
46 | } |
47 | elsif ($esc =~ /$RE{JIS_0212}/o) { |
48 | $str =~ s/([\xa1-\xfe][\xa1-\xfe])/\x8f$1/og; |
49 | } |
50 | } |
51 | $str; |
52 | }geox; |
53 | $$r_str; |
54 | } |
55 | |
56 | sub euc_jis{ |
57 | my $r_str = shift; |
58 | $$r_str =~ s{ |
59 | ((?:$RE{EUC_C})+|(?:$RE{EUC_KANA})+|(?:$RE{EUC_0212})+) |
60 | }{ |
61 | my $str = $1; |
62 | my $esc = |
63 | ( $str =~ tr/\x8E//d ) ? $ESC{KANA} : |
64 | ( $str =~ tr/\x8F//d ) ? $ESC{JIS_0212} : |
65 | $ESC{JIS_0208}; |
66 | $str =~ tr/\xA1-\xFE/\x21-\x7E/; |
67 | $esc . $str . $ESC{ASC}; |
68 | }geox; |
69 | $$r_str =~ |
70 | s/\Q$ESC{ASC}\E |
71 | (\Q$ESC{KANA}\E|\Q$ESC{JIS_0212}\E|\Q$ESC{JIS_0208}\E)/$1/gox; |
72 | $$r_str; |
73 | } |
74 | |
75 | 1; |
76 | __END__ |