f20a9a676f
- JSONparseCore:
- Implement output to string
- Added method WriteToString()
- Create function pointers which is selected for correct output:
JSONstrOutput or JSONfileOutput -> Print()
- Replace all write() statements with Print() statements
- Modify PrintStr not use dprintf, but sprintf to temp buffer
124 lines
4.1 KiB
C++
124 lines
4.1 KiB
C++
/*
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* JSONparseCore.h
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*
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* Created on: 5 Mar 2017
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* Author: wentzelc
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*/
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#ifndef REDACORE_JSONPARSECORE_H_
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#define REDACORE_JSONPARSECORE_H_
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// Standard C/C++ Libraries
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#include <string.h>
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#include <ctype.h>
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#include <unistd.h>
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// redA Libraries
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#include "DataTreeCore.h"
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#include "CharBufferCore.h"
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//---------------------------------------------------------------------------
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// Pointer template for File/String Output functions
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class CJSONparse;
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inline ssize_t JSONstrOutput( CJSONparse * JSONparse, const char * Data, size_t Len );
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inline ssize_t JSONfileOutput( CJSONparse * JSONparse, const char * Data, size_t Len );
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typedef ssize_t (*FOutput)( CJSONparse * JSONparse, const char * Data, size_t Len );
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//---------------------------------------------------------------------------
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class CJSONparse
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{
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protected:
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CDataMember * DataTree = NULL;
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// File operation
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int InputHandle = -1;
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int OutputHandle = -1;
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char * OutputStr = NULL;
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size_t OutputMaxLen = 0;
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size_t OutputPos = 0;
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CShiftBuffer * Buffer = NULL;
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// Parsing operation
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char * BufPos = NULL;
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char * Mark = NULL;
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int LineNo = 0;
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int CharNo = 0;
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bool RefillBuffer = false;
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// Printing Operation
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FOutput Print = NULL;
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char Spacer[100] = "";
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int SpacerLen = 0;
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// Error
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bool Error = false;
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char ErrorText[100] = "";
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// Parsing functions
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void SkipWhiteSpace();
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bool ParseString( char ** Value, int &pLen );
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bool ParseObject( CDataMember * Object );
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bool ParseArray( CDataMember * Array );
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bool ParseString( CDataMember * Member );
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bool ParsePrimitive( CDataMember * Member );
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bool PrintString( char * String, int Len );
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bool PrintObject( CDataMember * Object, const int Indent );
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bool PrintArray( CDataMember * Object, const int Indent );
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public:
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CJSONparse();
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CJSONparse( CDataMember * pDataTree );
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~CJSONparse();
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// Tree
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bool SetBase( CDataMember * Object );
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// Buffer operation
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bool CreateBuffer( int pBufLen );
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bool FillBuffer();
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void FreeBuffer();
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bool ReadFromBuffer( const char * BasePath );
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// Input
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bool ReadFromString( const char * BasePath, const char * InString, const int Len );
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bool ReadFromHandle( const char * BasePath, const int Handle, bool pRefillBuffer );
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bool ReadFromFile( const char * BasePath, const char * Path, const char * FileName );
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bool ReadFromFile( const char * BasePath, const char * FilePath );
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// Output
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bool WriteToString( const char * BasePath, char * TargetStr, int &MaxLen, const int Indent = 0 );
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bool WriteToHandle( const char * BasePath, const int Handle, const int Indent = 2 );
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bool WriteToScreen( const char * BasePath, const int Indent = 2 );
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bool WriteToFile( const char * BasePath, const char * Path, const char * FileName, const int Indent = 2 );
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bool WriteToFile( const char * BasePath, const char * FilePath, const int Indent = 2 );
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const char * GetError() { return ((Error)? ErrorText : "Success"); };
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friend inline ssize_t JSONstrOutput( CJSONparse * JSONparse, const char * Data, size_t Len );
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friend inline ssize_t JSONfileOutput( CJSONparse * JSONparse, const char * Data, size_t Len );
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};
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//---------------------------------------------------------------------------
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inline ssize_t JSONstrOutput( CJSONparse * JSONparse, const char * Data, size_t Len )
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{
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if (JSONparse->OutputPos + Len > JSONparse->OutputMaxLen) return -1;
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memcpy( &JSONparse->OutputStr[JSONparse->OutputPos], Data, Len );
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JSONparse->OutputPos += Len;
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JSONparse->OutputStr[JSONparse->OutputPos] = 0;
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return Len;
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}
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//---------------------------------------------------------------------------
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inline ssize_t JSONfileOutput( CJSONparse * JSONparse, const char * Data, size_t Len )
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{
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return write( JSONparse->OutputHandle, Data, Len );
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}
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//---------------------------------------------------------------------------
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#endif /* REDACORE_JSONPARSECORE_H_ */
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