@Override
int read(final TextInput ti) throws IOException {
final int a = ti.readByte();
if (a < 0) return a;
final int b = ti.readByte();
if (b < 0) return invalid();
return a << 8 | b;
}
@Override
int read(final TextInput ti) throws IOException {
final int a = ti.readByte();
if (a < 0) return a;
final int b = ti.readByte();
if (b < 0) return invalid();
final int c = ti.readByte();
if (c < 0) return invalid();
final int d = ti.readByte();
if (d < 0) return invalid();
return a << 24 | b << 16 | c << 8 | d;
}
@Override
int read(final TextInput ti) throws IOException {
int ch = ti.readByte();
if (ch < 0x80) return ch;
if (ch < 0xC0) return invalid();
cache[0] = (byte) ch;
final int cl = Token.cl((byte) ch);
for (int c = 1; c < cl; ++c) {
ch = ti.readByte();
if (ch < 0x80) return invalid();
cache[c] = (byte) ch;
}
return Token.cp(cache, 0);
}
@Override
int read(final TextInput ti) throws IOException {
int c = -1;
while (++c < 4) {
final int ch = ti.readByte();
if (ch < 0) break;
cache[c] = (byte) ch;
outc.position(0);
inc.position(0);
inc.limit(c + 1);
csd.reset();
final CoderResult cr = csd.decode(inc, outc, true);
if (cr.isMalformed()) continue;
// return character
int i = 0;
final int os = outc.position();
for (int o = 0; o < os; ++o) i |= outc.get(o) << (o << 3);
return i;
}
return c == 0 ? -1 : invalid();
}
