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Diffstat (limited to 'storage/connect/tabfmt.h')
| -rw-r--r-- | storage/connect/tabfmt.h | 191 |
1 files changed, 191 insertions, 0 deletions
diff --git a/storage/connect/tabfmt.h b/storage/connect/tabfmt.h new file mode 100644 index 00000000..10f0757c --- /dev/null +++ b/storage/connect/tabfmt.h @@ -0,0 +1,191 @@ +/*************** TabFmt H Declares Source Code File (.H) ***************/ +/* Name: TABFMT.H Version 2.5 */ +/* */ +/* (C) Copyright to the author Olivier BERTRAND 2001-2016 */ +/* */ +/* This file contains the CSV and FMT classes declares. */ +/***********************************************************************/ +#include "xtable.h" // Base class declares +#include "tabdos.h" + +typedef class TDBFMT *PTDBFMT; + +/***********************************************************************/ +/* Functions used externally. */ +/***********************************************************************/ +DllExport PQRYRES CSVColumns(PGLOBAL g, PCSZ dp, PTOS topt, bool info); + +/***********************************************************************/ +/* CSV table. */ +/***********************************************************************/ +class DllExport CSVDEF : public DOSDEF { /* Logical table description */ + friend class TDBCSV; + friend class TDBCCL; + friend PQRYRES CSVColumns(PGLOBAL, PCSZ, PTOS, bool); +public: + // Constructor + CSVDEF(void); + + // Implementation + virtual const char *GetType(void) {return "CSV";} + char GetSep(void) {return Sep;} + char GetQot(void) {return Qot;} + + // Methods + virtual bool DefineAM(PGLOBAL g, LPCSTR am, int poff); + virtual PTDB GetTable(PGLOBAL g, MODE mode); + + protected: + // Members + bool Fmtd; /* true for formatted files */ +//bool Accept; /* true if wrong lines are accepted */ + bool Header; /* true if first line contains headers */ +//int Maxerr; /* Maximum number of bad records */ + int Quoted; /* Quoting level for quoted fields */ + char Sep; /* Separator for standard CSV files */ + char Qot; /* Character for quoted strings */ + }; // end of CSVDEF + +/***********************************************************************/ +/* This is the DOS/UNIX Access Method class declaration for files */ +/* that are CSV files with columns separated by the Sep character. */ +/***********************************************************************/ +class DllExport TDBCSV : public TDBDOS { + friend class CSVCOL; + friend class MAPFAM; + friend PQRYRES CSVColumns(PGLOBAL, PCSZ, PTOS, bool); +public: + // Constructor + TDBCSV(PCSVDEF tdp, PTXF txfp); + TDBCSV(PGLOBAL g, PTDBCSV tdbp); + + // Implementation + virtual AMT GetAmType(void) {return TYPE_AM_CSV;} + virtual PTDB Duplicate(PGLOBAL g) + {return (PTDB)new(g) TDBCSV(g, this);} + + // Methods + virtual PTDB Clone(PTABS t); +//virtual bool IsUsingTemp(PGLOBAL g); + virtual int GetBadLines(void) {return (int)Nerr;} + + // Database routines + virtual PCOL MakeCol(PGLOBAL g, PCOLDEF cdp, PCOL cprec, int n); + virtual bool OpenDB(PGLOBAL g); + virtual int WriteDB(PGLOBAL g); + virtual int CheckWrite(PGLOBAL g); + virtual int ReadBuffer(PGLOBAL g); // Physical file read + + // Specific routines + virtual int EstimatedLength(void); + virtual bool SkipHeader(PGLOBAL g); + virtual bool CheckErr(void); + + protected: + virtual bool PrepareWriting(PGLOBAL g); + + // Members + PSZ *Field; // Field to write to current line + int *Offset; // Column offsets for current record + int *Fldlen; // Column field length for current record + bool *Fldtyp; // true for numeric fields + int Fields; // Number of fields to handle + int Nerr; // Number of bad records + int Maxerr; // Maximum number of bad records + int Quoted; // Quoting level for quoted fields + bool Accept; // true if bad lines are accepted + bool Header; // true if first line contains column headers + char Sep; // Separator + char Qot; // Quoting character + }; // end of class TDBCSV + +/***********************************************************************/ +/* Class CSVCOL: CSV access method column descriptor. */ +/* This A.M. is used for Comma Separated V(?) files. */ +/***********************************************************************/ +class DllExport CSVCOL : public DOSCOL { + friend class TDBCSV; + friend class TDBFMT; + public: + // Constructors + CSVCOL(PGLOBAL g, PCOLDEF cdp, PTDB tdbp, PCOL cprec, int i); + CSVCOL(CSVCOL *colp, PTDB tdbp); // Constructor used in copy process + + // Implementation + virtual int GetAmType() {return TYPE_AM_CSV;} + + // Methods + virtual bool VarSize(void); + virtual void ReadColumn(PGLOBAL g); + virtual void WriteColumn(PGLOBAL g); + + protected: + // Default constructor not to be used + CSVCOL(void) {} + + // Members + int Fldnum; // Field ordinal number (0 based) + }; // end of class CSVCOL + +/***********************************************************************/ +/* This is the DOS/UNIX Access Method class declaration for files */ +/* whose record format is described by a Format keyword. */ +/***********************************************************************/ +class DllExport TDBFMT : public TDBCSV { + friend class CSVCOL; +//friend class FMTCOL; + public: + // Standard constructor + TDBFMT(PCSVDEF tdp, PTXF txfp) : TDBCSV(tdp, txfp) + {FldFormat = NULL; To_Fld = NULL; FmtTest = NULL; Linenum = 0;} + + // Copy constructor + TDBFMT(PGLOBAL g, PTDBFMT tdbp); + + // Implementation + virtual AMT GetAmType(void) {return TYPE_AM_FMT;} + virtual PTDB Duplicate(PGLOBAL g) + {return (PTDB)new(g) TDBFMT(g, this);} + + // Methods + virtual PTDB Clone(PTABS t); + + // Database routines + virtual PCOL MakeCol(PGLOBAL g, PCOLDEF cdp, PCOL cprec, int n); +//virtual int GetMaxSize(PGLOBAL g); + virtual bool OpenDB(PGLOBAL g); + virtual int WriteDB(PGLOBAL g); +//virtual int CheckWrite(PGLOBAL g); + virtual int ReadBuffer(PGLOBAL g); // Physical file read + + // Specific routines + virtual int EstimatedLength(void); + + protected: + virtual bool PrepareWriting(PGLOBAL g) + {sprintf(g->Message, MSG(TABLE_READ_ONLY), "FMT"); return true;} + + // Members + PSZ *FldFormat; // Field read format + void *To_Fld; // To field test buffer + int *FmtTest; // Test on ending by %n or %m + int Linenum; // Last read line + }; // end of class TDBFMT + +/***********************************************************************/ +/* This is the class declaration for the CSV catalog table. */ +/***********************************************************************/ +class DllExport TDBCCL : public TDBCAT { + public: + // Constructor + TDBCCL(PCSVDEF tdp); + + protected: + // Specific routines + virtual PQRYRES GetResult(PGLOBAL g); + + // Members + PTOS Topt; +}; // end of class TDBCCL + +/* ------------------------- End of TabFmt.H ------------------------- */ |