50 (cs instanceof ISO2022_CN_CNS));
51 }
52
53 public String historicalName() {
54 return "ISO2022CN_CNS";
55 }
56
57 public CharsetDecoder newDecoder() {
58 return new ISO2022_CN.Decoder(this);
59 }
60
61 public CharsetEncoder newEncoder() {
62 return new Encoder(this);
63 }
64
65 private static class Encoder extends ISO2022.Encoder {
66
67 public Encoder(Charset cs)
68 {
69 super(cs);
70 SODesig = "$)G";
71 SS2Desig = "$*H";
72 SS3Desig = "$+I";
73
74 try {
75 Charset cset = Charset.forName("EUC_TW"); // CNS11643
76 ISOEncoder = cset.newEncoder();
77 } catch (Exception e) { }
78 }
79
80 private byte[] bb = new byte[4];
81 public boolean canEncode(char c) {
82 int n = 0;
83 return (c <= '\u007f' ||
84 (n = ((EUC_TW.Encoder)ISOEncoder).toEUC(c, bb)) == 2 ||
85 (n == 4 && bb[0] == SS2 &&
86 (bb[1] == PLANE2 || bb[1] == PLANE3)));
87 }
88
89 /*
90 * Since ISO2022-CN-CNS possesses a CharsetEncoder
91 * without the corresponding CharsetDecoder half the
92 * default replacement check needs to be overridden
|
50 (cs instanceof ISO2022_CN_CNS));
51 }
52
53 public String historicalName() {
54 return "ISO2022CN_CNS";
55 }
56
57 public CharsetDecoder newDecoder() {
58 return new ISO2022_CN.Decoder(this);
59 }
60
61 public CharsetEncoder newEncoder() {
62 return new Encoder(this);
63 }
64
65 private static class Encoder extends ISO2022.Encoder {
66
67 public Encoder(Charset cs)
68 {
69 super(cs);
70 SODesig = new byte[] {'$', ')', 'G' };
71 SS2Desig = new byte[] {'$', '*', 'H' };
72 SS3Desig = new byte[] {'$', '+', 'I' };
73
74 try {
75 Charset cset = Charset.forName("EUC_TW"); // CNS11643
76 ISOEncoder = cset.newEncoder();
77 } catch (Exception e) { }
78 }
79
80 private byte[] bb = new byte[4];
81 public boolean canEncode(char c) {
82 int n = 0;
83 return (c <= '\u007f' ||
84 (n = ((EUC_TW.Encoder)ISOEncoder).toEUC(c, bb)) == 2 ||
85 (n == 4 && bb[0] == SS2 &&
86 (bb[1] == PLANE2 || bb[1] == PLANE3)));
87 }
88
89 /*
90 * Since ISO2022-CN-CNS possesses a CharsetEncoder
91 * without the corresponding CharsetDecoder half the
92 * default replacement check needs to be overridden
|