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All > Cpp > C++ (Cpp) codecForName Example


C++ (CPP) CODECFORNAME EXAMPLE


INTRODUCTION

The c++ (cpp) codecforname example is extracted from the most popular open
source projects, you can refer to the following example for usage.

Programming language: C++ (Cpp)

Method/Function: codecForName



EXAMPLE#1

bool ICQClient::translate(const char *to, const char *from, string &str)
{
    if (*str.c_str() == 0)
        return true;
    if (!strcasecmp(from, to))
        return true;
    QTextCodec *fromCodec = (*from) ? codecForName(from) : QTextCodec::codecForLocale();
    QTextCodec *toCodec = (*to) ? codecForName(to) : QTextCodec::codecForLocale();
    if ((fromCodec == NULL) && (toCodec == NULL) &&
            strcasecmp(from, "UCS-2") &&
            strcasecmp(from, "UTF-8") && strcasecmp(to, "UTF-8")){
        if ((*from && strcmp(from, "ascii")) || (*to && strcmp(to, "ascii")))
            log(L_WARN, "Codec for %s -> %s not found", from, to);
        return true;
    }
    QString s;
    if (fromCodec == NULL){
        if (strcasecmp(from, "utf-8") == 0){
            s = QString::fromUtf8(str.c_str());
        }else if (strcasecmp(from, "ucs-2") == 0){
            for (unsigned i = 0; i < str.length() / 2; i += 2)
                s += QChar(*((uint*)(str.c_str() + i)));
        }else{
            if (*from && strcmp(from, "ascii"))
                log(L_WARN, "Codec for %s not found", from);
            s = QString::fromLocal8Bit(str.c_str());
        }
    }else{
        QTextDecoder *decoder = fromCodec->makeDecoder();
        s = decoder->toUnicode(str.c_str(), strlen(str.c_str()));
    }
    if (s.length() == 0){
        s = "";
        return true;
    }
    if (toCodec == NULL){
        if (strcasecmp(to, "utf-8")){
            if (*to && strcmp(to, "ascii"))
                log(L_WARN, "Codec for %s not found", to);
            str = s.local8Bit();
        }else{
            str = s.utf8();
        }
    }else{
        QTextEncoder *encoder = toCodec->makeEncoder();
        int size = s.length();
        str = encoder->fromUnicode(s, size);
    }
    return true;
}


EXAMPLE#2
FILE: NODEHELPER.CPP PROJECT: APPETROSYAN/KUBE

const QTextCodec *NodeHelper::codec(KMime::Content *node)
{
    if (! node) {
        return mLocalCodec;
    }

    const QTextCodec *c = mOverrideCodecs.value(node, nullptr);
    if (!c) {
        // no override-codec set for this message, try the CT charset parameter:
        QByteArray charset = node->contentType()->charset();

        // utf-8 is a superset of us-ascii, so we don't loose anything, if we it insead
        // utf-8 is nowadays that widely, that it is a good guess to use it to fix issus with broken clients.
        if (charset.toLower() == "us-ascii") {
            charset = "utf-8";
        }
        c = codecForName(charset);
    }
    if (!c) {
        // no charset means us-ascii (RFC 2045), so using local encoding should
        // be okay
        c = mLocalCodec;
    }
    return c;
}


EXAMPLE#3

bool ICQClient::translate(const char *to, const char *from, string &str)
{
    if (*str.c_str() == 0)
        return true;
    if (!strcasecmp(from, to))
        return true;
    QTextCodec *fromCodec = codecForName(from);
    QTextCodec *toCodec = codecForName(to);
    if ((fromCodec == NULL) && (toCodec == NULL)){
        if ((*from && strcmp(from, "ascii")) || (*to && strcmp(to, "ascii")))
            log(L_WARN, "Codec for %s -> %s not found", from, to);
        return true;
    }
    QString s;
    if (fromCodec == NULL){
        if (*from && strcmp(from, "ascii"))
            log(L_WARN, "Codec for %s not found", from);
        s = QString::fromLocal8Bit(str.c_str());
    }else{
        QTextDecoder *decoder = fromCodec->makeDecoder();
        s = decoder->toUnicode(str.c_str(), strlen(str.c_str()));
    }
    if (s.length() == 0){
        s = "";
        return true;
    }
    if (toCodec == NULL){
        if (*to && strcmp(to, "ascii"))
            log(L_WARN, "Codec for %s not found", to);
        str = s.local8Bit();
    }else{
        QTextEncoder *encoder = toCodec->makeEncoder();
        int size = s.length();
        str = encoder->fromUnicode(s, size);
    }
    return true;
}


EXAMPLE#4
FILE: KWQKCHARSETS.CPP PROJECT: BACKUPTHEBERLIOS/WXWEBCORE-SVN

QTextCodec *KCharsets::codecForName(const QString &qs, bool &ok) const
{
    return codecForName(qs.latin1(), ok);
}


EXAMPLE#5
FILE: KWQKCHARSETS.CPP PROJECT: BACKUPTHEBERLIOS/WXWEBCORE-SVN

QTextCodec *KCharsets::codecForName(const QCString &qs, bool &ok) const
{
    return codecForName(qs.data(), ok);
}




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