Data Class Reference

#include <data.h>

List of all members.

Public Types
enum	DataType {   dtError, dtId, dtNum, dtData,   dtText }
Public Member Functions
	Data (Id attr, Id value, Data *pNext=NULL)
	attr=Id
	Data (Id attr, double number, Data *pNext=NULL)
	attr=number
	Data (Id attr, Data *pData, Data *pNext=NULL)
	attr=Data
	Data (Id attr, char *str, Data *pNext=NULL)
	attr=text
bool	IsUnitNum ()
DataType	GetType ()
Id	GetAttr ()
Id	GetId ()
double	GetNum ()
Data *	GetData ()
Data *	GetNext ()
Data *	FindAttr (Id attr)
Data *	FindData (Id data)
void	Dump (FILE *fp=stdout, int indent=0)
	Recursive dump of Data. If indent==-1 separate with space not .
void	Print ()
	Print the data field of a Data object.
void	AppendData (Data *p)
	Append list *p after end of this data.
void	Insert (Data *p)
	Insert single item after this Data item.
Static Public Member Functions
static Data *	Delete (Data **pp, Data *pData)
	Delete data item from a list of Data. Returns NULL if not found.
static Data *	BuildData (Data *p=NULL)

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Detailed Description

Class Data manage semantic data Data formats <attr>=Id inst=Texas <attr>=num year=1990 Note: Numbers are implemented as doubles. <attr>=Data alternate form: attr=attr=Id <attr>={DATA, DATA, DATA} inst={Tom, Dick, Harry}

Notes:

• Data values are set at construction and are not changed.
• Data is inherently list oriented, a list of attributes-value pairs.

Responsibilities:

• Represent data.
• Construct and traverse data.

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Member Enumeration Documentation

enum Data::DataType

Enumerator: dtError  dtId  dtNum  dtData  dtText

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Constructor & Destructor Documentation

Data::Data (  Id  attr, Id  value, Data *  pNext = NULL )

attr=Id

Data::Data (  Id  attr, double  number, Data *  pNext = NULL )

attr=number

Data::Data (  Id  attr, Data *  pData, Data *  pNext = NULL )

attr=Data

Data::Data (  Id  attr, char *  str, Data *  pNext = NULL )

attr=text

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Member Function Documentation

void Data::AppendData (  Data *  p  )

Append list *p after end of this data.

Data * Data::BuildData (  Data *  p = NULL  )  [static]

BuildData tokenizes and builds data strings. TODO: BuildData requires that strtok(NULL, " \n") will find data tokens. This is dependent on strtok's hidden global buffer, and it changes that strtok buffer. This modification of the hidden global buffer is a kinda icky side effect. Someday replace this with something better.

Data * Data::Delete (  Data **  pp, Data *  pData )  [static]

Delete data item from a list of Data. Returns NULL if not found.

void Data::Dump (  FILE *  fp = stdout, int  indent = 0 )

Recursive dump of Data. If indent==-1 separate with space not .

Data * Data::FindAttr (  Id  attr  )

Data * Data::FindData (  Id  data  )

Return pointer to Data item with data

Id Data::GetAttr (   )  [inline]

Data* Data::GetData (   )  [inline]

Id Data::GetId (   )  [inline]

Data* Data::GetNext (   )  [inline]

double Data::GetNum (   )

Data::DataType Data::GetType (   )

void Data::Insert (  Data *  p  )

Insert single item after this Data item.

bool Data::IsUnitNum (   )  [inline]

void Data::Print (   )

Print the data field of a Data object.

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

• data.h
• data.c

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