Bytecode implementation of the Math Parser. More...

#include <muParserBytecode.h>

Public Types
typedef bytecode_type	map_type
	Underlying type of the container. More...

Public Member Functions
	ParserByteCode ()

	~ParserByteCode ()
	Destructor (trivial). More...

	ParserByteCode (const ParserByteCode &a_ByteCode)
	Copy constructor. More...

ParserByteCode &	operator= (const ParserByteCode &a_ByteCode)
	Assignment operator. More...

void	Assign (const ParserByteCode &a_ByteCode)
	Copy state of another object to this. More...

void	AddVar (value_type *a_pVar)
	Add a Variable pointer to bytecode. More...

void	AddVal (value_type a_fVal)
	Add a Variable pointer to bytecode. More...

void	AddOp (ECmdCode a_Oprt)
	Add an operator identifier to bytecode. More...

void	AddAssignOp (value_type *a_pVar)
	Add an assignement operator. More...

void	AddFun (void *a_pFun, int a_iArgc)
	Add function to bytecode. More...

void	AddStrFun (void *a_pFun, int a_iArgc, int a_iIdx)
	Add Strung function entry to the parser bytecode. More...

void	Finalize ()
	Add end marker to bytecode. More...

void	clear ()
	Delete the bytecode. More...

std::size_t	GetBufSize () const

const map_type *	GetRawData () const
	Get Pointer to bytecode data storage. More...

unsigned	GetValSize () const
	Return size of a value entry. More...

unsigned	GetPtrSize () const
	Return size of a pointer entry. More...

void	RemoveValEntries (unsigned a_iNumber)
	Remove a value number of entries from the bytecode. More...

void	AsciiDump ()
	Dump bytecode (for debugging only!). More...

Detailed Description

Bytecode implementation of the Math Parser.

The bytecode contains the formula converted to revers polish notation stored in a continious memory area. Associated with this data are operator codes, variable pointers, constant values and function pointers. Those are necessary in order to calculate the result. All those data items will be casted to the underlying datatype of the bytecode.

Author: (C) 2004, 2005 Ingo Berg

Member Typedef Documentation

typedef bytecode_type mu::ParserByteCode::map_type

Underlying type of the container.

The bytecode is a vector of this type containing control codes, values and pointers. Values and pointer will be casted to this type before their storage.

Constructor & Destructor Documentation

mu::ParserByteCode::ParserByteCode ( )

Bytecode default constructor.

mu::ParserByteCode::~ParserByteCode ( )

Destructor (trivial).

mu::ParserByteCode::ParserByteCode ( const ParserByteCode & a_ByteCode )

Copy constructor.

Implemented in Terms of Assign(const ParserByteCode &a_ByteCode)

References Assign().

Member Function Documentation

void mu::ParserByteCode::AddAssignOp ( value_type * a_pVar )

Add an assignement operator.

Operator entries in byte code consist of:

cmASSIGN code
the pointer of the destination variable

See also: ParserToken::ECmdCode

References mu::cmASSIGN.

void mu::ParserByteCode::AddFun	(	void *	a_pFun,
		int	a_iArgc
	)

Add function to bytecode.

Parameters

a_iArgc	Number of arguments, negative numbers indicate multiarg functions.
a_pFun	Pointer to function callback.

References mu::cmFUNC.

void mu::ParserByteCode::AddOp ( ECmdCode a_Oprt )

Add an operator identifier to bytecode.

Operator entries in byte code consist of:

value array position of the result
the operator code according to ParserToken::ECmdCode

See also: ParserToken::ECmdCode

void mu::ParserByteCode::AddStrFun	(	void *	a_pFun,
		int	a_iArgc,
		int	a_iIdx
	)

Add Strung function entry to the parser bytecode.

Exceptions

nothrow A string function entry consists of the stack position of the return value, followed by a cmSTRFUNC code, the function pointer and an index into the string buffer maintained by the parser.

References mu::cmFUNC_STR.

void mu::ParserByteCode::AddVal ( value_type a_fVal )

Add a Variable pointer to bytecode.

Value entries in byte code consist of:

value array position of the value
the operator code according to ParserToken::cmVAL
the value stored in #mc_iSizeVal number of bytecode entries.

Parameters

a_pVal Value to be added.

Exceptions

nothrow

References mu::cmVAL.

void mu::ParserByteCode::AddVar ( value_type * a_pVar )

Add a Variable pointer to bytecode.

Parameters

a_pVar Pointer to be added.

Exceptions

nothrow

References mu::cmVAR.

void mu::ParserByteCode::AsciiDump ( )

Dump bytecode (for debugging only!).

References mu::cmADD, mu::cmAND, mu::cmASSIGN, mu::cmDIV, mu::cmEND, mu::cmEQ, mu::cmFUNC, mu::cmFUNC_STR, mu::cmGE, mu::cmGT, mu::cmLE, mu::cmLT, mu::cmMUL, mu::cmNEQ, mu::cmOR, mu::cmPOW, mu::cmSUB, mu::cmVAL, mu::cmVAR, mu::cmXOR, and max.

void mu::ParserByteCode::Assign ( const ParserByteCode & a_ByteCode )

Copy state of another object to this.

Exceptions

nowthrow

Referenced by operator=(), and ParserByteCode().

void mu::ParserByteCode::clear ( )

Delete the bytecode.

Exceptions

nothrow The name of this function is a violation of my own coding guidelines but this way it's more in line with the STL functions thus more intuitive.

void mu::ParserByteCode::Finalize ( )

Add end marker to bytecode.

Exceptions

nothrow

References mu::cmEND.

std::size_t mu::ParserByteCode::GetBufSize ( ) const

unsigned mu::ParserByteCode::GetPtrSize ( ) const

inline

Return size of a pointer entry.

That many bytecode entries are necessary to store a pointer.

See also: mc_iSizePtr

const ParserByteCode::map_type * mu::ParserByteCode::GetRawData ( ) const

Get Pointer to bytecode data storage.

unsigned mu::ParserByteCode::GetValSize ( ) const

inline

Return size of a value entry.

That many bytecode entries are necessary to store a value.

See also: mc_iSizeVal

ParserByteCode & mu::ParserByteCode::operator= ( const ParserByteCode & a_ByteCode )

Assignment operator.

Implemented in Terms of Assign(const ParserByteCode &a_ByteCode)

References Assign().

void mu::ParserByteCode::RemoveValEntries ( unsigned a_iNumber )

Remove a value number of entries from the bytecode.

Attention: Currently I don't test if the entries are really value entries.

The documentation for this class was generated from the following files:

Public Types

Public Member Functions

Detailed Description

Member Typedef Documentation

Constructor & Destructor Documentation

Member Function Documentation