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| ** All rights reserved. |
| ** Contact: Nokia Corporation (qt-info@nokia.com) |
| ** |
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| ** GNU Lesser General Public License Usage |
| ** This file may be used under the terms of the GNU Lesser General Public |
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| ** GNU General Public License Usage |
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| |
| // Most of the code here was originally written by Hans Petter Bieker, |
| // and is included in Qt with the author's permission, and the grateful |
| // thanks of the Qt team. |
| |
| #include "qtsciicodec_p.h" |
| #include "qlist.h" |
| |
| #ifndef QT_NO_CODECS |
| |
| QT_BEGIN_NAMESPACE |
| |
| static unsigned char qt_UnicodeToTSCII(ushort u1, ushort u2, ushort u3); |
| static unsigned int qt_TSCIIToUnicode(unsigned int code, uint *s); |
| |
| #define IsTSCIIChar(c) (((c) >= 0x80) && ((c) <= 0xfd)) |
| |
| /*! \class QTsciiCodec |
| \reentrant |
| \internal |
| */ |
| |
| /*! |
| Destroys the text codec object. |
| */ |
| QTsciiCodec::~QTsciiCodec() |
| { |
| } |
| |
| /*! |
| Converts the first \a len characters in \a uc from Unicode to this |
| encoding, and returns the result in a byte array. The \a state contains |
| some conversion flags, and is used by the codec to maintain state |
| information. |
| */ |
| QByteArray QTsciiCodec::convertFromUnicode(const QChar *uc, int len, ConverterState *state) const |
| { |
| char replacement = '?'; |
| if (state) { |
| if (state->flags & ConvertInvalidToNull) |
| replacement = 0; |
| } |
| int invalid = 0; |
| |
| QByteArray rstr(len, Qt::Uninitialized); |
| uchar* cursor = (uchar*)rstr.data(); |
| for (int i = 0; i < len; i++) { |
| QChar ch = uc[i]; |
| uchar j; |
| if (ch.row() == 0x00 && ch.cell() < 0x80) { |
| // ASCII |
| j = ch.cell(); |
| } else if ((j = qt_UnicodeToTSCII(uc[i].unicode(), |
| uc[i + 1].unicode(), |
| uc[i + 2].unicode()))) { |
| // We have to check the combined chars first! |
| i += 2; |
| } else if ((j = qt_UnicodeToTSCII(uc[i].unicode(), |
| uc[i + 1].unicode(), 0))) { |
| i++; |
| } else if ((j = qt_UnicodeToTSCII(uc[i].unicode(), 0, 0))) { |
| } else { |
| // Error |
| j = replacement; |
| ++invalid; |
| } |
| *cursor++ = j; |
| } |
| rstr.resize(cursor - (const uchar*)rstr.constData()); |
| |
| if (state) { |
| state->invalidChars += invalid; |
| } |
| return rstr; |
| } |
| |
| /*! |
| Converts the first \a len characters in \a chars from this encoding |
| to Unicode, and returns the result in a QString. The \a state contains |
| some conversion flags, and is used by the codec to maintain state |
| information. |
| */ |
| QString QTsciiCodec::convertToUnicode(const char* chars, int len, ConverterState *state) const |
| { |
| QChar replacement = QChar::ReplacementCharacter; |
| if (state) { |
| if (state->flags & ConvertInvalidToNull) |
| replacement = QChar::Null; |
| } |
| int invalid = 0; |
| |
| QString result; |
| for (int i = 0; i < len; i++) { |
| uchar ch = chars[i]; |
| if (ch < 0x80) { |
| // ASCII |
| result += QLatin1Char(ch); |
| } else if (IsTSCIIChar(ch)) { |
| // TSCII |
| uint s[3]; |
| uint u = qt_TSCIIToUnicode(ch, s); |
| uint *p = s; |
| while (u--) { |
| uint c = *p++; |
| if (c) |
| result += QChar(c); |
| else { |
| result += replacement; |
| ++invalid; |
| } |
| } |
| } else { |
| // Invalid |
| result += replacement; |
| ++invalid; |
| } |
| } |
| |
| if (state) { |
| state->invalidChars += invalid; |
| } |
| return result; |
| } |
| |
| /*! |
| Returns the official name for the encoding that is handled by the codec. |
| |
| \sa QTextCodec::name() |
| */ |
| QByteArray QTsciiCodec::name() const |
| { |
| return "TSCII"; |
| } |
| |
| /*! |
| Returns the MIB enum for the encoding. |
| |
| \sa QTextCodec::mibEnum() |
| */ |
| int QTsciiCodec::mibEnum() const |
| { |
| return 2107; |
| } |
| |
| static const int UnToTsLast = 124; // 125 items -- so the last will be 124 |
| static const ushort UnToTs [][4] = { |
| // *Sorted* list of TSCII maping for unicode chars |
| //FIRST SECOND THIRD TSCII |
| {0x00A0, 0x0000, 0x0000, 0xA0}, |
| {0x00A9, 0x0000, 0x0000, 0xA9}, |
| {0x0B83, 0x0000, 0x0000, 0xB7}, |
| {0x0B85, 0x0000, 0x0000, 0xAB}, |
| {0x0B86, 0x0000, 0x0000, 0xAC}, |
| {0x0B87, 0x0000, 0x0000, 0xAD}, |
| {0x0B88, 0x0000, 0x0000, 0xAE}, |
| {0x0B89, 0x0000, 0x0000, 0xAF}, |
| {0x0B8A, 0x0000, 0x0000, 0xB0}, |
| {0x0B8E, 0x0000, 0x0000, 0xB1}, |
| {0x0B8F, 0x0000, 0x0000, 0xB2}, |
| {0x0B90, 0x0000, 0x0000, 0xB3}, |
| {0x0B92, 0x0000, 0x0000, 0xB4}, |
| {0x0B93, 0x0000, 0x0000, 0xB5}, |
| {0x0B94, 0x0000, 0x0000, 0xB6}, |
| {0x0B95, 0x0000, 0x0000, 0xB8}, |
| {0x0B95, 0x0B82, 0x0000, 0xEC}, |
| {0x0B95, 0x0BC1, 0x0000, 0xCC}, |
| {0x0B95, 0x0BC2, 0x0000, 0xDC}, |
| {0x0B99, 0x0000, 0x0000, 0xB9}, |
| {0x0B99, 0x0B82, 0x0000, 0xED}, |
| {0x0B99, 0x0BC1, 0x0000, 0x99}, |
| {0x0B99, 0x0BC2, 0x0000, 0x9B}, |
| {0x0B9A, 0x0000, 0x0000, 0xBA}, |
| {0x0B9A, 0x0B82, 0x0000, 0xEE}, |
| {0x0B9A, 0x0BC1, 0x0000, 0xCD}, |
| {0x0B9A, 0x0BC2, 0x0000, 0xDD}, |
| {0x0B9C, 0x0000, 0x0000, 0x83}, |
| {0x0B9C, 0x0B82, 0x0000, 0x88}, |
| {0x0B9E, 0x0000, 0x0000, 0xBB}, |
| {0x0B9E, 0x0B82, 0x0000, 0xEF}, |
| {0x0B9E, 0x0BC1, 0x0000, 0x9A}, |
| {0x0B9E, 0x0BC2, 0x0000, 0x9C}, |
| {0x0B9F, 0x0000, 0x0000, 0xBC}, |
| {0x0B9F, 0x0B82, 0x0000, 0xF0}, |
| {0x0B9F, 0x0BBF, 0x0000, 0xCA}, |
| {0x0B9F, 0x0BC0, 0x0000, 0xCB}, |
| {0x0B9F, 0x0BC1, 0x0000, 0xCE}, |
| {0x0B9F, 0x0BC2, 0x0000, 0xDE}, |
| {0x0BA1, 0x0B82, 0x0000, 0xF2}, |
| {0x0BA3, 0x0000, 0x0000, 0xBD}, |
| {0x0BA3, 0x0B82, 0x0000, 0xF1}, |
| {0x0BA3, 0x0BC1, 0x0000, 0xCF}, |
| {0x0BA3, 0x0BC2, 0x0000, 0xDF}, |
| {0x0BA4, 0x0000, 0x0000, 0xBE}, |
| {0x0BA4, 0x0BC1, 0x0000, 0xD0}, |
| {0x0BA4, 0x0BC2, 0x0000, 0xE0}, |
| {0x0BA8, 0x0000, 0x0000, 0xBF}, |
| {0x0BA8, 0x0B82, 0x0000, 0xF3}, |
| {0x0BA8, 0x0BC1, 0x0000, 0xD1}, |
| {0x0BA8, 0x0BC2, 0x0000, 0xE1}, |
| {0x0BA9, 0x0000, 0x0000, 0xC9}, |
| {0x0BA9, 0x0B82, 0x0000, 0xFD}, |
| {0x0BA9, 0x0BC1, 0x0000, 0xDB}, |
| {0x0BA9, 0x0BC2, 0x0000, 0xEB}, |
| {0x0BAA, 0x0000, 0x0000, 0xC0}, |
| {0x0BAA, 0x0B82, 0x0000, 0xF4}, |
| {0x0BAA, 0x0BC1, 0x0000, 0xD2}, |
| {0x0BAA, 0x0BC2, 0x0000, 0xE2}, |
| {0x0BAE, 0x0000, 0x0000, 0xC1}, |
| {0x0BAE, 0x0B82, 0x0000, 0xF5}, |
| {0x0BAE, 0x0BC1, 0x0000, 0xD3}, |
| {0x0BAE, 0x0BC2, 0x0000, 0xE3}, |
| {0x0BAF, 0x0000, 0x0000, 0xC2}, |
| {0x0BAF, 0x0B82, 0x0000, 0xF6}, |
| {0x0BAF, 0x0BC1, 0x0000, 0xD4}, |
| {0x0BAF, 0x0BC2, 0x0000, 0xE4}, |
| {0x0BB0, 0x0000, 0x0000, 0xC3}, |
| {0x0BB0, 0x0B82, 0x0000, 0xF7}, |
| {0x0BB0, 0x0BC1, 0x0000, 0xD5}, |
| {0x0BB0, 0x0BC2, 0x0000, 0xE5}, |
| {0x0BB1, 0x0000, 0x0000, 0xC8}, |
| {0x0BB1, 0x0B82, 0x0000, 0xFC}, |
| {0x0BB1, 0x0BC1, 0x0000, 0xDA}, |
| {0x0BB1, 0x0BC2, 0x0000, 0xEA}, |
| {0x0BB2, 0x0000, 0x0000, 0xC4}, |
| {0x0BB2, 0x0B82, 0x0000, 0xF8}, |
| {0x0BB2, 0x0BC1, 0x0000, 0xD6}, |
| {0x0BB2, 0x0BC2, 0x0000, 0xE6}, |
| {0x0BB3, 0x0000, 0x0000, 0xC7}, |
| {0x0BB3, 0x0B82, 0x0000, 0xFB}, |
| {0x0BB3, 0x0BC1, 0x0000, 0xD9}, |
| {0x0BB3, 0x0BC2, 0x0000, 0xE9}, |
| {0x0BB4, 0x0000, 0x0000, 0xC6}, |
| {0x0BB4, 0x0B82, 0x0000, 0xFA}, |
| {0x0BB4, 0x0BC1, 0x0000, 0xD8}, |
| {0x0BB4, 0x0BC2, 0x0000, 0xE8}, |
| {0x0BB5, 0x0000, 0x0000, 0xC5}, |
| {0x0BB5, 0x0B82, 0x0000, 0xF9}, |
| {0x0BB5, 0x0BC1, 0x0000, 0xD7}, |
| {0x0BB5, 0x0BC2, 0x0000, 0xE7}, |
| {0x0BB7, 0x0000, 0x0000, 0x84}, |
| {0x0BB7, 0x0B82, 0x0000, 0x89}, |
| {0x0BB8, 0x0000, 0x0000, 0x85}, |
| {0x0BB8, 0x0B82, 0x0000, 0x8A}, |
| {0x0BB9, 0x0000, 0x0000, 0x86}, |
| {0x0BB9, 0x0B82, 0x0000, 0x8B}, |
| {0x0BBE, 0x0000, 0x0000, 0xA1}, |
| {0x0BBF, 0x0000, 0x0000, 0xA2}, |
| {0x0BC0, 0x0000, 0x0000, 0xA3}, |
| {0x0BC1, 0x0000, 0x0000, 0xA4}, |
| {0x0BC2, 0x0000, 0x0000, 0xA5}, |
| {0x0BC6, 0x0000, 0x0000, 0xA6}, |
| {0x0BC7, 0x0000, 0x0000, 0xA7}, |
| {0x0BC8, 0x0000, 0x0000, 0xA8}, |
| {0x0BCC, 0x0000, 0x0000, 0xAA}, |
| {0x0BE6, 0x0000, 0x0000, 0x80}, |
| {0x0BE7, 0x0000, 0x0000, 0x81}, |
| {0x0BE7, 0x0BB7, 0x0000, 0x87}, |
| {0x0BE7, 0x0BB7, 0x0B82, 0x8C}, |
| {0x0BE8, 0x0000, 0x0000, 0x8D}, |
| {0x0BE9, 0x0000, 0x0000, 0x8E}, |
| {0x0BEA, 0x0000, 0x0000, 0x8F}, |
| {0x0BEB, 0x0000, 0x0000, 0x90}, |
| {0x0BEC, 0x0000, 0x0000, 0x95}, |
| {0x0BED, 0x0000, 0x0000, 0x96}, |
| {0x0BEE, 0x0000, 0x0000, 0x97}, |
| {0x0BEF, 0x0000, 0x0000, 0x98}, |
| {0x0BF0, 0x0000, 0x0000, 0x9D}, |
| {0x0BF1, 0x0000, 0x0000, 0x9E}, |
| {0x0BF2, 0x0000, 0x0000, 0x9F}, |
| {0x2018, 0x0000, 0x0000, 0x91}, |
| {0x2019, 0x0000, 0x0000, 0x92}, |
| {0x201C, 0x0000, 0x0000, 0x93}, |
| {0x201C, 0x0000, 0x0000, 0x94} |
| }; |
| |
| static const ushort TsToUn [][3] = { |
| // Starting at 0x80 |
| {0x0BE6, 0x0000, 0x0000}, |
| {0x0BE7, 0x0000, 0x0000}, |
| {0x0000, 0x0000, 0x0000}, // unknown |
| {0x0B9C, 0x0000, 0x0000}, |
| {0x0BB7, 0x0000, 0x0000}, |
| {0x0BB8, 0x0000, 0x0000}, |
| {0x0BB9, 0x0000, 0x0000}, |
| {0x0BE7, 0x0BB7, 0x0000}, |
| {0x0B9C, 0x0B82, 0x0000}, |
| {0x0BB7, 0x0B82, 0x0000}, |
| {0x0BB8, 0x0B82, 0x0000}, |
| {0x0BB9, 0x0B82, 0x0000}, |
| {0x0BE7, 0x0BB7, 0x0B82}, |
| {0x0BE8, 0x0000, 0x0000}, |
| {0x0BE9, 0x0000, 0x0000}, |
| {0x0BEA, 0x0000, 0x0000}, |
| {0x0BEB, 0x0000, 0x0000}, |
| {0x2018, 0x0000, 0x0000}, |
| {0x2019, 0x0000, 0x0000}, |
| {0x201C, 0x0000, 0x0000}, |
| {0x201C, 0x0000, 0x0000}, // two of the same?? |
| {0x0BEC, 0x0000, 0x0000}, |
| {0x0BED, 0x0000, 0x0000}, |
| {0x0BEE, 0x0000, 0x0000}, |
| {0x0BEF, 0x0000, 0x0000}, |
| {0x0B99, 0x0BC1, 0x0000}, |
| {0x0B9E, 0x0BC1, 0x0000}, |
| {0x0B99, 0x0BC2, 0x0000}, |
| {0x0B9E, 0x0BC2, 0x0000}, |
| {0x0BF0, 0x0000, 0x0000}, |
| {0x0BF1, 0x0000, 0x0000}, |
| {0x0BF2, 0x0000, 0x0000}, |
| {0x00A0, 0x0000, 0x0000}, |
| {0x0BBE, 0x0000, 0x0000}, |
| {0x0BBF, 0x0000, 0x0000}, |
| {0x0BC0, 0x0000, 0x0000}, |
| {0x0BC1, 0x0000, 0x0000}, |
| {0x0BC2, 0x0000, 0x0000}, |
| {0x0BC6, 0x0000, 0x0000}, |
| {0x0BC7, 0x0000, 0x0000}, |
| {0x0BC8, 0x0000, 0x0000}, |
| {0x00A9, 0x0000, 0x0000}, |
| {0x0BCC, 0x0000, 0x0000}, |
| {0x0B85, 0x0000, 0x0000}, |
| {0x0B86, 0x0000, 0x0000}, |
| {0x0B87, 0x0000, 0x0000}, |
| {0x0B88, 0x0000, 0x0000}, |
| {0x0B89, 0x0000, 0x0000}, |
| {0x0B8A, 0x0000, 0x0000}, |
| {0x0B8E, 0x0000, 0x0000}, |
| {0x0B8F, 0x0000, 0x0000}, |
| {0x0B90, 0x0000, 0x0000}, |
| {0x0B92, 0x0000, 0x0000}, |
| {0x0B93, 0x0000, 0x0000}, |
| {0x0B94, 0x0000, 0x0000}, |
| {0x0B83, 0x0000, 0x0000}, |
| {0x0B95, 0x0000, 0x0000}, |
| {0x0B99, 0x0000, 0x0000}, |
| {0x0B9A, 0x0000, 0x0000}, |
| {0x0B9E, 0x0000, 0x0000}, |
| {0x0B9F, 0x0000, 0x0000}, |
| {0x0BA3, 0x0000, 0x0000}, |
| {0x0BA4, 0x0000, 0x0000}, |
| {0x0BA8, 0x0000, 0x0000}, |
| {0x0BAA, 0x0000, 0x0000}, |
| {0x0BAE, 0x0000, 0x0000}, |
| {0x0BAF, 0x0000, 0x0000}, |
| {0x0BB0, 0x0000, 0x0000}, |
| {0x0BB2, 0x0000, 0x0000}, |
| {0x0BB5, 0x0000, 0x0000}, |
| {0x0BB4, 0x0000, 0x0000}, |
| {0x0BB3, 0x0000, 0x0000}, |
| {0x0BB1, 0x0000, 0x0000}, |
| {0x0BA9, 0x0000, 0x0000}, |
| {0x0B9F, 0x0BBF, 0x0000}, |
| {0x0B9F, 0x0BC0, 0x0000}, |
| {0x0B95, 0x0BC1, 0x0000}, |
| {0x0B9A, 0x0BC1, 0x0000}, |
| {0x0B9F, 0x0BC1, 0x0000}, |
| {0x0BA3, 0x0BC1, 0x0000}, |
| {0x0BA4, 0x0BC1, 0x0000}, |
| {0x0BA8, 0x0BC1, 0x0000}, |
| {0x0BAA, 0x0BC1, 0x0000}, |
| {0x0BAE, 0x0BC1, 0x0000}, |
| {0x0BAF, 0x0BC1, 0x0000}, |
| {0x0BB0, 0x0BC1, 0x0000}, |
| {0x0BB2, 0x0BC1, 0x0000}, |
| {0x0BB5, 0x0BC1, 0x0000}, |
| {0x0BB4, 0x0BC1, 0x0000}, |
| {0x0BB3, 0x0BC1, 0x0000}, |
| {0x0BB1, 0x0BC1, 0x0000}, |
| {0x0BA9, 0x0BC1, 0x0000}, |
| {0x0B95, 0x0BC2, 0x0000}, |
| {0x0B9A, 0x0BC2, 0x0000}, |
| {0x0B9F, 0x0BC2, 0x0000}, |
| {0x0BA3, 0x0BC2, 0x0000}, |
| {0x0BA4, 0x0BC2, 0x0000}, |
| {0x0BA8, 0x0BC2, 0x0000}, |
| {0x0BAA, 0x0BC2, 0x0000}, |
| {0x0BAE, 0x0BC2, 0x0000}, |
| {0x0BAF, 0x0BC2, 0x0000}, |
| {0x0BB0, 0x0BC2, 0x0000}, |
| {0x0BB2, 0x0BC2, 0x0000}, |
| {0x0BB5, 0x0BC2, 0x0000}, |
| {0x0BB4, 0x0BC2, 0x0000}, |
| {0x0BB3, 0x0BC2, 0x0000}, |
| {0x0BB1, 0x0BC2, 0x0000}, |
| {0x0BA9, 0x0BC2, 0x0000}, |
| {0x0B95, 0x0B82, 0x0000}, |
| {0x0B99, 0x0B82, 0x0000}, |
| {0x0B9A, 0x0B82, 0x0000}, |
| {0x0B9E, 0x0B82, 0x0000}, |
| {0x0B9F, 0x0B82, 0x0000}, |
| {0x0BA3, 0x0B82, 0x0000}, |
| {0x0BA1, 0x0B82, 0x0000}, |
| {0x0BA8, 0x0B82, 0x0000}, |
| {0x0BAA, 0x0B82, 0x0000}, |
| {0x0BAE, 0x0B82, 0x0000}, |
| {0x0BAF, 0x0B82, 0x0000}, |
| {0x0BB0, 0x0B82, 0x0000}, |
| {0x0BB2, 0x0B82, 0x0000}, |
| {0x0BB5, 0x0B82, 0x0000}, |
| {0x0BB4, 0x0B82, 0x0000}, |
| {0x0BB3, 0x0B82, 0x0000}, |
| {0x0BB1, 0x0B82, 0x0000}, |
| {0x0BA9, 0x0B82, 0x0000} |
| }; |
| |
| static int cmp(const ushort *s1, const ushort *s2, size_t len) |
| { |
| int diff = 0; |
| |
| while (len-- && (diff = *s1++ - *s2++) == 0) |
| ; |
| |
| return diff; |
| } |
| |
| static unsigned char qt_UnicodeToTSCII(ushort u1, ushort u2, ushort u3) |
| { |
| ushort s[3]; |
| s[0] = u1; |
| s[1] = u2; |
| s[2] = u3; |
| |
| int a = 0; // start pos |
| int b = UnToTsLast; // end pos |
| |
| // do a binary search for the composed unicode in the list |
| while (a <= b) { |
| int w = (a + b) / 2; |
| int j = cmp(UnToTs[w], s, 3); |
| |
| if (j == 0) |
| // found it |
| return UnToTs[w][3]; |
| |
| if (j < 0) |
| a = w + 1; |
| else |
| b = w - 1; |
| } |
| |
| return 0; |
| } |
| |
| static unsigned int qt_TSCIIToUnicode(uint code, uint *s) |
| { |
| int len = 0; |
| for (int i = 0; i < 3; i++) { |
| uint u = TsToUn[code & 0x7f][i]; |
| s[i] = u; |
| if (s[i]) len = i + 1; |
| } |
| |
| return len; |
| } |
| |
| QT_END_NAMESPACE |
| |
| #endif // QT_NO_CODECS |
