DACsvStream.h

#ifndef DACSVSTREAM_H
#define DACSVSTREAM_H
class QTextStream;
class QFile;
#include "DAUtilsAPI.h"
#include <QString>
 
namespace DA
{
class DAUTILS_API DACsvStream
{
    DA_DECLARE_PRIVATE(DACsvStream)
public:
    DACsvStream(QTextStream* txt);
    DACsvStream(QFile* txt);
    virtual ~DACsvStream();
    // 转换为标识csv字符
    static QString toCsvString(const QString& rawStr);
    // 把一行要用逗号分隔的字符串转换为一行标准csv字符串
    static QString toCsvStringLine(const QStringList& sectionLine);
    // 解析一行csv字符
    static QStringList fromCsvLine(const QString& lineStr);
    // 写入
    DAUTILS_API friend DACsvStream& operator<<(DACsvStream& csv, const QString& str);
    DAUTILS_API friend DACsvStream& operator<<(DACsvStream& csv, short d);
    DAUTILS_API friend DACsvStream& operator<<(DACsvStream& csv, unsigned short d);
    DAUTILS_API friend DACsvStream& operator<<(DACsvStream& csv, int d);
    DAUTILS_API friend DACsvStream& operator<<(DACsvStream& csv, unsigned int d);
    DAUTILS_API friend DACsvStream& operator<<(DACsvStream& csv, long d);
    DAUTILS_API friend DACsvStream& operator<<(DACsvStream& csv, unsigned long d);
    DAUTILS_API friend DACsvStream& operator<<(DACsvStream& csv, qlonglong d);
    DAUTILS_API friend DACsvStream& operator<<(DACsvStream& csv, qulonglong d);
    DAUTILS_API friend DACsvStream& operator<<(DACsvStream& csv, double d);
    DAUTILS_API friend DACsvStream& operator<<(DACsvStream& csv, float d);
    // 读取
    DAUTILS_API friend DACsvStream& operator>>(DACsvStream& csv, QStringList& d);
    // 另起一行
    void newLine();
    // 获取输入输出流
    QTextStream* streamPtr() const;
    QTextStream& stream();
    const QTextStream& stream() const;
    // 读取并解析一行csv字符串
    QStringList readCsvLine();
    // 判断是否到文件末端
    bool atEnd() const;
    void flush();
 
private:
    static int advquoted(const QString& s, QString& fld, int i);
    static int advplain(const QString& s, QString& fld, int i);
};
typedef DACsvStream& (*DACsvWriterFunction)(DACsvStream&);
 
inline DACsvStream& operator<<(DACsvStream& s, DACsvWriterFunction f)
{
    return (*f)(s);
}
DAUTILS_API DACsvStream& endl(DACsvStream& s);
 
}  // end namespace DA
 
#endif  // QCSVSTREAM_H