Initial import from the monolithic Qt.

This is the beginning of revision history for this module. If you
want to look at revision history older than this, please refer to the
Qt Git wiki for how to use Git history grafting. At the time of
writing, this wiki is located here:

http://qt.gitorious.org/qt/pages/GitIntroductionWithQt

If you have already performed the grafting and you don't see any
history beyond this commit, try running "git log" with the "--follow"
argument.

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

1 files changed, 645 insertions, 0 deletions

diff --git a/src/linguist/lupdate/java.cpp b/src/linguist/lupdate/java.cpp
new file mode 100644
index 000000000..bc3649912
--- /dev/null
+++ b/src/linguist/lupdate/java.cpp
@@ -0,0 +1,645 @@
+/****************************************************************************
+**
+** 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 Qt Linguist 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.
+**
+**
+**
+**
+**
+**
+**
+**
+** $QT_END_LICENSE$
+**
+****************************************************************************/
+
+#include "lupdate.h"
+
+#include <translator.h>
+
+#include <QtCore/QDebug>
+#include <QtCore/QFile>
+#include <QtCore/QRegExp>
+#include <QtCore/QStack>
+#include <QtCore/QStack>
+#include <QtCore/QString>
+#include <QtCore/QTextCodec>
+#include <QtCore/QCoreApplication>
+
+#include <iostream>
+
+#include <ctype.h>
+
+QT_BEGIN_NAMESPACE
+
+class LU {
+    Q_DECLARE_TR_FUNCTIONS(LUpdate)
+};
+
+enum { Tok_Eof, Tok_class, Tok_return, Tok_tr,
+       Tok_translate, Tok_Ident, Tok_Package,
+       Tok_Comment, Tok_String, Tok_Colon, Tok_Dot,
+       Tok_LeftBrace, Tok_RightBrace, Tok_LeftParen,
+       Tok_RightParen, Tok_Comma, Tok_Semicolon,
+       Tok_Integer, Tok_Plus, Tok_PlusPlus, Tok_PlusEq, Tok_null };
+
+class Scope
+{
+    public:
+        QString name;
+        enum Type {Clazz, Function, Other} type;
+        int line;
+
+        Scope(const QString & name, Type type, int line) :
+                name(name),
+                type(type),
+                line(line)
+        {}
+
+        ~Scope()
+        {}
+};
+
+/*
+  The tokenizer maintains the following global variables. The names
+  should be self-explanatory.
+*/
+
+static QString yyFileName;
+static QChar yyCh;
+static QString yyIdent;
+static QString yyComment;
+static QString yyString;
+
+
+static qlonglong yyInteger;
+static int yyParenDepth;
+static int yyLineNo;
+static int yyCurLineNo;
+static int yyParenLineNo;
+static int yyTok;
+
+// the string to read from and current position in the string
+static QString yyInStr;
+static int yyInPos;
+
+// The parser maintains the following global variables.
+static QString yyPackage;
+static QStack<Scope*> yyScope;
+static QString yyDefaultContext;
+
+std::ostream &yyMsg(int line = 0)
+{
+    return std::cerr << qPrintable(yyFileName) << ':' << (line ? line : yyLineNo) << ": ";
+}
+
+static QChar getChar()
+{
+    if (yyInPos >= yyInStr.size())
+        return EOF;
+    QChar c = yyInStr[yyInPos++];
+    if (c.unicode() == '\n')
+        ++yyCurLineNo;
+    return c.unicode();
+}
+
+static int getToken()
+{
+    const char tab[] = "bfnrt\"\'\\";
+    const char backTab[] = "\b\f\n\r\t\"\'\\";
+
+    yyIdent.clear();
+    yyComment.clear();
+    yyString.clear();
+
+    while ( yyCh != EOF ) {
+        yyLineNo = yyCurLineNo;
+
+        if ( yyCh.isLetter() || yyCh.toLatin1() == '_' ) {
+            do {
+                yyIdent.append(yyCh);
+                yyCh = getChar();
+            } while ( yyCh.isLetterOrNumber() || yyCh.toLatin1() == '_' );
+
+            if (yyTok != Tok_Dot) {
+                switch ( yyIdent.at(0).toLatin1() ) {
+                    case 'r':
+                        if ( yyIdent == QLatin1String("return") )
+                            return Tok_return;
+                        break;
+                     case 'c':
+                        if ( yyIdent == QLatin1String("class") )
+                            return Tok_class;
+                        break;
+                     case 'n':
+                         if ( yyIdent == QLatin1String("null") )
+                             return Tok_null;
+                        break;
+                }
+            }
+            switch ( yyIdent.at(0).toLatin1() ) {
+            case 'T':
+                // TR() for when all else fails
+                if ( yyIdent == QLatin1String("TR") )
+                    return Tok_tr;
+                break;
+            case 'p':
+                if( yyIdent == QLatin1String("package") )
+                    return Tok_Package;
+                break;
+            case 't':
+                if ( yyIdent == QLatin1String("tr") )
+                    return Tok_tr;
+                if ( yyIdent == QLatin1String("translate") )
+                    return Tok_translate;
+                }
+            return Tok_Ident;
+        } else {
+            switch ( yyCh.toLatin1() ) {
+
+            case '/':
+                yyCh = getChar();
+                if ( yyCh == QLatin1Char('/') ) {
+                    do {
+                        yyCh = getChar();
+                        if (yyCh == EOF)
+                            break;
+                        yyComment.append(yyCh);
+                    } while (yyCh != QLatin1Char('\n'));
+                    return Tok_Comment;
+
+                } else if ( yyCh == QLatin1Char('*') ) {
+                    bool metAster = false;
+                    bool metAsterSlash = false;
+
+                    while ( !metAsterSlash ) {
+                        yyCh = getChar();
+                        if ( yyCh == EOF ) {
+                            yyMsg() << qPrintable(LU::tr("Unterminated Java comment.\n"));
+                            return Tok_Comment;
+                        }
+
+                        yyComment.append( yyCh );
+
+                        if ( yyCh == QLatin1Char('*') )
+                            metAster = true;
+                        else if ( metAster && yyCh == QLatin1Char('/') )
+                            metAsterSlash = true;
+                        else
+                            metAster = false;
+                    }
+                    yyComment.chop(2);
+                    yyCh = getChar();
+
+                    return Tok_Comment;
+                }
+                break;
+            case '"':
+                yyCh = getChar();
+
+                while ( yyCh != EOF && yyCh != QLatin1Char('\n') && yyCh != QLatin1Char('"') ) {
+                    if ( yyCh == QLatin1Char('\\') ) {
+                        yyCh = getChar();
+                        if ( yyCh == QLatin1Char('u') ) {
+                            yyCh = getChar();
+                            uint unicode(0);
+                            for (int i = 4; i > 0; --i) {
+                                unicode = unicode << 4;
+                                if( yyCh.isDigit() ) {
+                                    unicode += yyCh.digitValue();
+                                }
+                                else {
+                                    int sub(yyCh.toLower().toAscii() - 87);
+                                    if( sub > 15 || sub < 10) {
+                                        yyMsg() << qPrintable(LU::tr("Invalid Unicode value.\n"));
+                                        break;
+                                    }
+                                    unicode += sub;
+                                }
+                                yyCh = getChar();
+                            }
+                            yyString.append(QChar(unicode));
+                        }
+                        else if ( yyCh == QLatin1Char('\n') ) {
+                            yyCh = getChar();
+                        }
+                        else {
+                            yyString.append( QLatin1Char(backTab[strchr( tab, yyCh.toAscii() ) - tab]) );
+                            yyCh = getChar();
+                        }
+                    } else {
+                        yyString.append(yyCh);
+                        yyCh = getChar();
+                    }
+                }
+
+                if ( yyCh != QLatin1Char('"') )
+                    yyMsg() << qPrintable(LU::tr("Unterminated string.\n"));
+
+                yyCh = getChar();
+
+                return Tok_String;
+
+            case ':':
+                yyCh = getChar();
+                return Tok_Colon;
+            case '\'':
+                yyCh = getChar();
+
+                if ( yyCh == QLatin1Char('\\') )
+                    yyCh = getChar();
+                do {
+                    yyCh = getChar();
+                } while ( yyCh != EOF && yyCh != QLatin1Char('\'') );
+                yyCh = getChar();
+                break;
+            case '{':
+                yyCh = getChar();
+                return Tok_LeftBrace;
+            case '}':
+                yyCh = getChar();
+                return Tok_RightBrace;
+            case '(':
+                if (yyParenDepth == 0)
+                    yyParenLineNo = yyCurLineNo;
+                yyParenDepth++;
+                yyCh = getChar();
+                return Tok_LeftParen;
+            case ')':
+                if (yyParenDepth == 0)
+                    yyParenLineNo = yyCurLineNo;
+                yyParenDepth--;
+                yyCh = getChar();
+                return Tok_RightParen;
+            case ',':
+                yyCh = getChar();
+                return Tok_Comma;
+            case '.':
+                yyCh = getChar();
+                return Tok_Dot;
+            case ';':
+                yyCh = getChar();
+                return Tok_Semicolon;
+            case '+':
+                yyCh = getChar();
+                if (yyCh == QLatin1Char('+')) {
+                    yyCh = getChar();
+                    return Tok_PlusPlus;
+		}
+                if( yyCh == QLatin1Char('=') ){
+                    yyCh = getChar();
+                    return Tok_PlusEq;
+		}
+                return Tok_Plus;
+            case '0':
+            case '1':
+            case '2':
+            case '3':
+            case '4':
+            case '5':
+            case '6':
+            case '7':
+            case '8':
+            case '9':
+                {
+                    QByteArray ba;
+                    ba += yyCh.toLatin1();
+                    yyCh = getChar();
+                    bool hex = yyCh == QLatin1Char('x');
+                    if ( hex ) {
+                        ba += yyCh.toLatin1();
+                        yyCh = getChar();
+                    }
+                    while ( hex ? isxdigit(yyCh.toLatin1()) : yyCh.isDigit() ) {
+                        ba += yyCh.toLatin1();
+                        yyCh = getChar();
+                    }
+                    bool ok;
+                    yyInteger = ba.toLongLong(&ok);
+                    if (ok) return Tok_Integer;
+                    break;
+                }
+            default:
+                yyCh = getChar();
+            }
+        }
+    }
+    return Tok_Eof;
+}
+
+static bool match( int t )
+{
+    bool matches = ( yyTok == t );
+    if ( matches )
+        yyTok = getToken();
+    return matches;
+}
+
+static bool matchString( QString &s )
+{
+    if ( yyTok != Tok_String )
+        return false;
+
+    s = yyString;
+    yyTok = getToken();
+    while ( yyTok == Tok_Plus ) {
+        yyTok = getToken();
+        if (yyTok == Tok_String)
+            s += yyString;
+        else {
+            yyMsg() << qPrintable(LU::tr(
+                "String used in translation can contain only literals"
+                " concatenated with other literals, not expressions or numbers.\n"));
+            return false;
+        }
+        yyTok = getToken();
+    }
+    return true;
+}
+
+static bool matchStringOrNull(QString &s)
+{
+    bool matches = matchString(s);
+    if (!matches) {
+        matches = (yyTok == Tok_null);
+        if (matches)
+            yyTok = getToken();
+    }
+    return matches;
+}
+
+/*
+ * match any expression that can return a number, which can be
+ * 1. Literal number (e.g. '11')
+ * 2. simple identifier (e.g. 'm_count')
+ * 3. simple function call (e.g. 'size()' )
+ * 4. function call on an object (e.g. 'list.size()')
+ * 5. function call on an object (e.g. 'list->size()')
+ *
+ * Other cases:
+ * size(2,4)
+ * list().size()
+ * list(a,b).size(2,4)
+ * etc...
+ */
+static bool matchExpression()
+{
+    if (match(Tok_Integer)) {
+        return true;
+    }
+
+    int parenlevel = 0;
+    while (match(Tok_Ident) || parenlevel > 0) {
+        if (yyTok == Tok_RightParen) {
+            if (parenlevel == 0) break;
+            --parenlevel;
+            yyTok = getToken();
+        } else if (yyTok == Tok_LeftParen) {
+            yyTok = getToken();
+            if (yyTok == Tok_RightParen) {
+                yyTok = getToken();
+            } else {
+                ++parenlevel;
+            }
+        } else if (yyTok == Tok_Ident) {
+            continue;
+        } else if (parenlevel == 0) {
+            return false;
+        }
+    }
+    return true;
+}
+
+static const QString context()
+{
+      QString context(yyPackage);
+      bool innerClass = false;
+      for (int i = 0; i < yyScope.size(); ++i) {
+         if (yyScope.at(i)->type == Scope::Clazz) {
+             if (innerClass)
+                 context.append(QLatin1String("$"));
+             else
+                 context.append(QLatin1String("."));
+
+             context.append(yyScope.at(i)->name);
+             innerClass = true;
+         }
+     }
+     return context.isEmpty() ? yyDefaultContext : context;
+}
+
+static void recordMessage(
+    Translator *tor, const QString &context, const QString &text, const QString &comment,
+    const QString &extracomment, bool plural)
+{
+    TranslatorMessage msg(
+        context, text, comment, QString(),
+        yyFileName, yyLineNo, QStringList(),
+        TranslatorMessage::Unfinished, plural);
+    msg.setExtraComment(extracomment.simplified());
+    tor->extend(msg);
+}
+
+static void parse( Translator *tor )
+{
+    QString text;
+    QString com;
+    QString extracomment;
+
+    yyCh = getChar();
+
+    yyTok = getToken();
+    while ( yyTok != Tok_Eof ) {
+        switch ( yyTok ) {
+        case Tok_class:
+            yyTok = getToken();
+            if(yyTok == Tok_Ident) {
+                yyScope.push(new Scope(yyIdent, Scope::Clazz, yyLineNo));
+            }
+            else {
+                yyMsg() << qPrintable(LU::tr("'class' must be followed by a class name.\n"));
+                break;
+            }
+            while (!match(Tok_LeftBrace)) {
+                yyTok = getToken();
+            }
+            break;
+
+        case Tok_tr:
+            yyTok = getToken();
+            if ( match(Tok_LeftParen) && matchString(text) ) {
+                com.clear();
+                bool plural = false;
+
+                if ( match(Tok_RightParen) ) {
+                    // no comment
+                } else if (match(Tok_Comma) && matchStringOrNull(com)) {   //comment
+                    if ( match(Tok_RightParen)) {
+                        // ok,
+                    } else if (match(Tok_Comma)) {
+                        plural = true;
+                    }
+                }
+                if (!text.isEmpty())
+                    recordMessage(tor, context(), text, com, extracomment, plural);
+            }
+            break;
+        case Tok_translate:
+            {
+                QString contextOverride;
+                yyTok = getToken();
+                if ( match(Tok_LeftParen) &&
+                     matchString(contextOverride) &&
+                     match(Tok_Comma) &&
+                     matchString(text) ) {
+
+                    com.clear();
+                    bool plural = false;
+                    if (!match(Tok_RightParen)) {
+                        // look for comment
+                        if ( match(Tok_Comma) && matchStringOrNull(com)) {
+                            if (!match(Tok_RightParen)) {
+                                if (match(Tok_Comma) && matchExpression() && match(Tok_RightParen)) {
+                                    plural = true;
+                                } else {
+                                    break;
+                                }
+                            }
+                        } else {
+                            break;
+                        }
+                    }
+                    if (!text.isEmpty())
+                        recordMessage(tor, contextOverride, text, com, extracomment, plural);
+                }
+            }
+            break;
+
+        case Tok_Ident:
+            yyTok = getToken();
+            break;
+
+        case Tok_Comment:
+            if (yyComment.startsWith(QLatin1Char(':'))) {
+                yyComment.remove(0, 1);
+                extracomment.append(yyComment);
+            }
+            yyTok = getToken();
+            break;
+
+        case Tok_RightBrace:
+            if ( yyScope.isEmpty() ) {
+                yyMsg() << qPrintable(LU::tr("Excess closing brace.\n"));
+            }
+            else
+                delete (yyScope.pop());
+            extracomment.clear();
+            yyTok = getToken();
+            break;
+
+         case Tok_LeftBrace:
+            yyScope.push(new Scope(QString(), Scope::Other, yyLineNo));
+            yyTok = getToken();
+            break;
+
+        case Tok_Semicolon:
+            extracomment.clear();
+            yyTok = getToken();
+            break;
+
+        case Tok_Package:
+            yyTok = getToken();
+            while(!match(Tok_Semicolon)) {
+                switch(yyTok) {
+                    case Tok_Ident:
+                        yyPackage.append(yyIdent);
+                        break;
+                    case Tok_Dot:
+                        yyPackage.append(QLatin1String("."));
+                        break;
+                    default:
+                         yyMsg() << qPrintable(LU::tr("'package' must be followed by package name.\n"));
+                         break;
+                }
+                yyTok = getToken();
+            }
+            break;
+
+        default:
+            yyTok = getToken();
+        }
+    }
+
+    if ( !yyScope.isEmpty() )
+        yyMsg(yyScope.top()->line) << qPrintable(LU::tr("Unbalanced opening brace.\n"));
+    else if ( yyParenDepth != 0 )
+        yyMsg(yyParenLineNo) << qPrintable(LU::tr("Unbalanced opening parenthesis.\n"));
+}
+
+
+bool loadJava(Translator &translator, const QString &filename, ConversionData &cd)
+{
+    QFile file(filename);
+    if (!file.open(QIODevice::ReadOnly)) {
+        cd.appendError(LU::tr("Cannot open %1: %2").arg(filename, file.errorString()));
+        return false;
+    }
+
+    yyDefaultContext = cd.m_defaultContext;
+    yyInPos = -1;
+    yyFileName = filename;
+    yyPackage.clear();
+    yyScope.clear();
+    yyTok = -1;
+    yyParenDepth = 0;
+    yyCurLineNo = 0;
+    yyParenLineNo = 1;
+
+    QTextStream ts(&file);
+    QByteArray codecName;
+    if (!cd.m_codecForSource.isEmpty())
+        codecName = cd.m_codecForSource;
+    else
+        codecName = translator.codecName(); // Just because it should be latin1 already
+    ts.setCodec(QTextCodec::codecForName(codecName));
+    ts.setAutoDetectUnicode(true);
+    yyInStr = ts.readAll();
+    yyInPos = 0;
+    yyFileName = filename;
+    yyCurLineNo = 1;
+    yyParenLineNo = 1;
+
+    parse(&translator);
+
+    // Java uses UTF-16 internally and Jambi makes UTF-8 for tr() purposes of it.
+    translator.setCodecName("UTF-8");
+    return true;
+}
+
+QT_END_NAMESPACE