ascstream.h

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#ifndef ascstream_h
#define ascstream_h

/*+
________________________________________________________________________

 (C) dGB Beheer B.V.; (LICENSE) http://opendtect.org/OpendTect_license.txt
 Author:        A.H.Bril
 Date:          2-5-1995
 RCS:           $Id$
________________________________________________________________________

-*/

#include "basicmod.h"
#include "bufstring.h"
#include "plftypes.h"
#include "od_iostream.h"

#define mAscStrmParagraphMarker         "!"
#define mAscStrmKeyValSep               ':'


mExpClass(Basic) ascostream
{

public:

                ascostream(od_ostream&);
                ascostream(od_ostream*); // becomes mine
    virtual     ~ascostream();

    bool        isOK() const;

    bool        putHeader(const char* filetype);
    bool        put(const char*,const char* val=0);
    bool        put(const char*,const OD::String&);

#define mAscStreamDefFns(fn,typ) \
    bool        fn(const char*,typ); \
    bool        fn(const char*,typ,typ); \
    bool        fn(const char*,typ,typ,typ); \
    bool        fn(const char*,typ,typ,typ,typ)
                mAscStreamDefFns(put,int);
                mAscStreamDefFns(put,od_uint32);
                mAscStreamDefFns(put,od_int64);
                mAscStreamDefFns(put,od_uint64);
                mAscStreamDefFns(put,float);
                mAscStreamDefFns(put,double);
                mAscStreamDefFns(putYN,bool);
#undef mAscStreamDefFns

    void        newParagraph();

    inline od_ostream&  stream()                { return strm_; }

protected:

    od_ostream& strm_;
    bool        strmmine_;

    void        putKeyword(const char*,bool wsep=true);

};


mExpClass(Basic) ascistream
{
public:
                        ascistream(od_istream&,bool rdhead=true);
                        ascistream(od_istream*,bool rdhead=true);
    virtual             ~ascistream();

    ascistream&         next();
    bool                isOK() const;

    const char*         headerStartLine() const { return header_.buf(); }
    bool                hasStandardHeader() const;
    const char*         fileType() const        { return filetype_.buf(); }
    bool                isOfFileType(const char*) const;
    const char*         version() const;
    const char*         timeStamp() const       { return timestamp_.buf(); }
    int                 majorVersion() const;
    int                 minorVersion() const;

    enum EntryType      { Empty, Keyword, KeyVal, ParagraphMark, EndOfFile };
    EntryType           type() const;
    bool                atEOS() const           { return type() > KeyVal; }

    const char*         keyWord() const         { return keybuf_.buf(); }
    const char*         value() const           { return valbuf_.buf(); }
    bool                hasKeyword(const char*) const;
    bool                hasValue(const char*) const;
    int                 getIValue(int i=0) const;
    od_uint32           getUIValue(int i=0) const;
    od_int64            getI64Value(int i=0) const;
    od_uint64           getUI64Value(int i=0) const;
    float               getFValue(int i=0) const;
    double              getDValue(int i=0) const;
    bool                getYN(int i=0) const;

    inline od_istream&  stream()                { return strm_; }

                        // This is for overriding what's in the file
    void                setKeyWord( const char* s ) { keybuf_ = s; }
    void                setValue( const char* s ) { valbuf_ = s; }

protected:

    od_istream&         strm_;
    bool                strmmine_;
    BufferString        keybuf_;
    BufferString        valbuf_;

    BufferString        header_;
    BufferString        filetype_;
    BufferString        timestamp_;

private:

    void                init(bool);

};


inline bool atEndOfSection( const ascistream& strm )
{ return strm.atEOS(); }


#endif