fetchtr.cpp

qt-x11-opensource-src-4.1.4.tar.gz源码

				quiet = false;

                while ( yyCh != EOF && yyCh != '\n' && yyCh != '"' ) {
                    if ( yyCh == '\\' ) {
                        yyCh = getChar();

                        if ( yyCh == '\n' ) {
                            yyCh = getChar();
                        } else if ( yyCh == 'r' ) { // Skip \r since Linguist also removes those.
                            yyCh = getChar();
                        } else if ( yyCh == 'x' ) {
                            QByteArray hex = "0";

                            yyCh = getChar();
                            while ( isxdigit(yyCh) ) {
                                hex += (char) yyCh;
                                yyCh = getChar();
                            }
#if defined(_MSC_VER) && _MSC_VER >= 1400
							sscanf_s( hex, "%x", &n );
#else
                            sscanf( hex, "%x", &n );
#endif
                            if ( yyStringLen < sizeof(yyString) - 1 )
                                yyString[yyStringLen++] = (char) n;
                        } else if ( yyCh >= '0' && yyCh < '8' ) {
                            QByteArray oct = "";
                            int n = 0;

                            do {
                                oct += (char) yyCh;
                                ++n;
                                yyCh = getChar();
                            } while ( yyCh >= '0' && yyCh < '8' && n < 3 );
#if defined(_MSC_VER) && _MSC_VER >= 1400
							sscanf_s( oct, "%o", &n );
#else
                            sscanf( oct, "%o", &n );
#endif
                            if ( yyStringLen < sizeof(yyString) - 1 )
                                yyString[yyStringLen++] = (char) n;
                        } else {
                            const char *p = strchr( tab, yyCh );
                            if ( yyStringLen < sizeof(yyString) - 1 )
                                yyString[yyStringLen++] = ( p == 0 ) ?
                                        (char) yyCh : backTab[p - tab];
                            yyCh = getChar();
                        }
                    } else {
						if (!yyCodecForSource) {
							if ( yyParsingUtf8 && yyCh >= 0x80 && !quiet) {
								qWarning( "%s:%d: Non-ASCII character detected in trUtf8 string",
										  (const char *) yyFileName, yyLineNo );
								quiet = true;
							}
							// common case: optimized
							if ( yyStringLen < sizeof(yyString) - 1 )
								yyString[yyStringLen++] = (char) yyCh;
							yyCh = getChar();
						} else {
							QByteArray originalBytes;
							while ( yyCh != EOF && yyCh != '\n' && yyCh != '"' && yyCh != '\\' ) {
								if ( yyParsingUtf8 && yyCh >= 0x80 && !quiet) {
									qWarning( "%s:%d: Non-ASCII character detected in trUtf8 string",
											(const char *) yyFileName, yyLineNo );
									quiet = true;
								}
								originalBytes += (char)yyCh;
								yyCh = getChar();
							}

							QString unicodeStr = yyCodecForSource->toUnicode(originalBytes);
							QByteArray convertedBytes;

							if (!yyCodecForTr->canEncode(unicodeStr) && !quiet) {
								qWarning( "%s:%d: Cannot convert C++ string from %s to %s",
										  (const char *) yyFileName, yyLineNo, yyCodecForSource->name().constData(),
										  yyCodecForTr->name().constData() );
								quiet = true;
							}
							convertedBytes = yyCodecForTr->fromUnicode(unicodeStr);

							size_t len = qMin((size_t)convertedBytes.size(), sizeof(yyString) - yyStringLen - 1);
							memcpy(yyString + yyStringLen, convertedBytes.constData(), len);
							yyStringLen += len;
						}
                    }
                }
                yyString[yyStringLen] = '\0';

                if ( yyCh != '"' )
                    qWarning( "%s:%d: Unterminated C++ string",
                              (const char *) yyFileName, yyLineNo );

                if ( yyCh == EOF ) {
                    return Tok_Eof;
                } else {
                    yyCh = getChar();
                    return Tok_String;
                }
                break;
            case '-':
                yyCh = getChar();
                if ( yyCh == '>' ) {
                    yyCh = getChar();
                    return Tok_Arrow;
                }
                break;
            case ':':
                yyCh = getChar();
                if ( yyCh == ':' ) {
                    yyCh = getChar();
                    return Tok_Gulbrandsen;
                }
                return Tok_Colon;
            case '\'':
                yyCh = getChar();
                if ( yyCh == '\\' )
                    yyCh = getChar();

                do {
                    yyCh = getChar();
                } while ( yyCh != EOF && yyCh != '\'' );
                yyCh = getChar();
                break;
            case '{':
                if (yyBraceDepth == 0)
                    yyBraceLineNo = yyCurLineNo;
                yyBraceDepth++;
                yyCh = getChar();
                return Tok_LeftBrace;
            case '}':
                if (yyBraceDepth == 0)
                    yyBraceLineNo = yyCurLineNo;
                yyBraceDepth--;
                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_Semicolon;
            case '0':
            case '1':
            case '2':
            case '3':
            case '4':
            case '5':
            case '6':
            case '7':
            case '8':
            case '9':
                {
                    QByteArray ba;
                    ba+=yyCh;
                    yyCh = getChar();
                    bool hex = yyCh == 'x';
                    if ( hex ) {
                        ba+=yyCh;
                        yyCh = getChar();
                    }
                    while ( (hex ? isxdigit(yyCh) : isdigit(yyCh)) ) {
                        ba+=yyCh;
                        yyCh = getChar();
                    }
                    bool ok;
                    yyInteger = ba.toLongLong(&ok);
                    if (ok) return Tok_Integer;
                    break;
                } 
            default:
                yyCh = getChar();
            }
        }
    }
    return Tok_Eof;
}

/*
  The second part of this source file is the parser. It accomplishes
  a very easy task: It finds all strings inside a tr() or translate()
  call, and possibly finds out the context of the call. It supports
  three cases: (1) the context is specified, as in
  FunnyDialog::tr("Hello") or translate("FunnyDialog", "Hello");
  (2) the call appears within an inlined function; (3) the call
  appears within a function defined outside the class definition.
*/

static int yyTok;

static bool match( int t )
{
    bool matches = ( yyTok == t );
    if ( matches )
        yyTok = getToken();
    return matches;
}

static bool matchString( QByteArray *s )
{
    bool matches = ( yyTok == Tok_String );
    *s = "";
    while ( yyTok == Tok_String ) {
        *s += yyString;
        yyTok = getToken();
    }
    return matches;
}

static bool matchEncoding( bool *utf8 )
{
    if ( yyTok == Tok_Ident ) {
        if ( strcmp(yyIdent, "QApplication") == 0 || strcmp(yyIdent, "QCoreApplication") == 0) {
            yyTok = getToken();
            if ( yyTok == Tok_Gulbrandsen )
                yyTok = getToken();
        }
        *utf8 = QString( yyIdent ).endsWith( QString("UTF8") );
        yyTok = getToken();
        return true;
    } else {
        return false;
    }
}

static bool matchInteger( qlonglong *number)
{
    bool matches = (yyTok == Tok_Integer);
    if (matches) {
        yyTok = getToken();
        *number = yyInteger;
    }
    return matches;
}

static bool matchStringOrNull(QByteArray *s)
{
    bool matches = matchString(s);
    qlonglong num = 0;
    if (!matches) matches = matchInteger(&num);
    return matches && num == 0;
}

static void parse( MetaTranslator *tor, const char *initialContext, const char *defaultContext )
{
    QMap<QByteArray, QByteArray> qualifiedContexts;
    QStringList namespaces;
    QByteArray context;
    QByteArray text;
    QByteArray com;
    QByteArray functionContext = initialContext;
    QByteArray prefix;
    bool utf8 = false;
    bool missing_Q_OBJECT = false;

    yyTok = getToken();
    while ( yyTok != Tok_Eof ) {
        switch ( yyTok ) {
        case Tok_class:
            /*
              Partial support for inlined functions.
            */
            yyTok = getToken();
            if ( yyBraceDepth == (int) namespaces.count() &&
                 yyParenDepth == 0 ) {
                do {
                    /*
                      This code should execute only once, but we play
                      safe with impure definitions such as
                      'class Q_EXPORT QMessageBox', in which case
                      'QMessageBox' is the class name, not 'Q_EXPORT'.
                    */
                    functionContext = yyIdent;
                    yyTok = getToken();
                } while ( yyTok == Tok_Ident );

                while ( yyTok == Tok_Gulbrandsen ) {
                    yyTok = getToken();
                    functionContext += "::";
                    functionContext += yyIdent;
                    yyTok = getToken();
                }

                if ( yyTok == Tok_Colon ) {
                    missing_Q_OBJECT = true;
                } else {
                    functionContext = defaultContext;
                }
            }
            break;
        case Tok_namespace:
            yyTok = getToken();
            if ( yyTok == Tok_Ident ) {
                QByteArray ns = yyIdent;
                yyTok = getToken();
                if ( yyTok == Tok_LeftBrace &&
                     yyBraceDepth == (int) namespaces.count() + 1 )
                    namespaces.append( QString(ns) );
            }
            break;
        case Tok_tr:
        case Tok_trUtf8:
            utf8 = ( yyTok == Tok_trUtf8 );
            yyTok = getToken();
            if ( match(Tok_LeftParen) && matchString(&text) ) {