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Branched from the monolithic repo, Qt master branch, at commit
896db169ea224deb96c59ce8af800d019de63f12

1 files changed, 498 insertions, 0 deletions

diff --git a/src/corelib/codecs/qtsciicodec.cpp b/src/corelib/codecs/qtsciicodec.cpp
new file mode 100644
index 0000000000..2550b07eb5
--- /dev/null
+++ b/src/corelib/codecs/qtsciicodec.cpp
@@ -0,0 +1,498 @@
+/****************************************************************************
+**
+** Copyright (C) 2011 Nokia Corporation and/or its subsidiary(-ies).
+** All rights reserved.
+** Contact: Nokia Corporation (qt-info@nokia.com)
+**
+** This file is part of the QtCore module of the Qt Toolkit.
+**
+** $QT_BEGIN_LICENSE:LGPL$
+** No Commercial Usage
+** This file contains pre-release code and may not be distributed.
+** You may use this file in accordance with the terms and conditions
+** contained in the Technology Preview License Agreement accompanying
+** this package.
+**
+** GNU Lesser General Public License Usage
+** Alternatively, this file may be used under the terms of the GNU Lesser
+** General Public License version 2.1 as published by the Free Software
+** Foundation and appearing in the file LICENSE.LGPL included in the
+** packaging of this file.  Please review the following information to
+** ensure the GNU Lesser General Public License version 2.1 requirements
+** will be met: http://www.gnu.org/licenses/old-licenses/lgpl-2.1.html.
+**
+** In addition, as a special exception, Nokia gives you certain additional
+** rights.  These rights are described in the Nokia Qt LGPL Exception
+** version 1.1, included in the file LGPL_EXCEPTION.txt in this package.
+**
+** If you have questions regarding the use of this file, please contact
+** Nokia at qt-info@nokia.com.
+**
+**
+**
+**
+**
+**
+**
+**
+** $QT_END_LICENSE$
+**
+****************************************************************************/
+
+// 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