StringParser.cpp

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#include "StringParser.h"

#include <qregexp.h>

QStringList StringParser::split(const QChar& sep, const QString& str,
        bool allowEmptyEntries)
{
        QString line = str + sep;
        QString quote;
        QRegExp rxend;
        QRegExp rxdbl;
        int pos=0, len, idx=0;
        QStringList list;
        while(idx < (int)line.length()-1){
                if(!quote.isEmpty()){
                        QString s;
                        while((pos = rxend.match(line, idx, &len)) != -1){
                                s += line.mid(idx, len+pos-idx-1);
                                idx = pos+len-1;
                                if(len % 2 == 0){
                                        s.replace(rxdbl, quote);
                                        list.append(s.left(s.length()-1));
                                        idx++;
                                        break;
                                }
                        }
                        quote = "";
                } else if(line[idx] == '\"'){
                        rxend.setPattern(QString("\"+") + sep);
                        rxdbl.setPattern("\"\"");
                        quote = "\"";
                        idx++;
                } else if(line[idx] == '\''){
                        rxend.setPattern(QString("\'+") + sep);
                        rxdbl.setPattern("\'\'");
                        quote = "\'";
                        idx++;
                } else if(!allowEmptyEntries && line[idx] == sep){
                        idx++;
                } else {
                        pos = line.find(sep, idx);
                        if(pos != -1){
                                const QString& s = line.mid(idx, pos-idx);
                                list.append(s);
                                idx = pos+1;
                        }
                }
                if(pos == -1) break;
        }
        return list;
}

QString StringParser::join(const QChar& sep, const QStringList& list)
{
        QString str;
        QString s;
        QStringList tmp;
        QRegExp quote("\"");
        for(QStringList::ConstIterator it=list.begin();
                        it!=list.end(); ++it){
                s = *it;
                if(s.find(sep) != -1
                        || s[0] == '\"'
                        || s[0] == '\''){
                        s.replace(quote, "\"\"");
                        tmp.append("\"" + s + "\"");
                } else {
                        tmp.append(s);
                }
        }
        return tmp.join(sep);
}

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