NodeSetReader< _Graph, _Traits > Class Template Reference
[Section readers and writers]

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Detailed Description

template<typename _Graph, typename _Traits = DefaultReaderTraits>
class lemon::NodeSetReader< _Graph, _Traits >

The lemon format can store multiple graph nodesets with several maps. The nodeset section's header line is @nodeset nodeset_name, but the nodeset_name may be empty.

The first line of the section contains the names of the maps separated with white spaces. Each next lines describes a node in the nodeset, and contains the mapped values for each map.

If the nodeset contains an "label" named map then it will be regarded as id map. This map should contain only unique values and when the readLabel() member will read a value from the given stream it will give back that node which is mapped to this value. #include <lemon/lemon_reader.h>

Inheritance diagram for NodeSetReader< _Graph, _Traits >:

[legend]

List of all members.

Public Member Functions
	NodeSetReader (LemonReader &_reader, Graph &_graph, const std::string &_name=std::string(), const DefaultSkipper &_skipper=DefaultSkipper())
	Constructor.
virtual	~NodeSetReader ()
	Destructor.
template<typename Map >
NodeSetReader &	readNodeMap (std::string label, Map &map)
template<typename ItemReader , typename Map >
NodeSetReader &	readNodeMap (std::string label, Map &map, const ItemReader &ir=ItemReader())
template<typename ItemReader >
NodeSetReader &	skipNodeMap (std::string label, const ItemReader &ir=ItemReader())
bool	isLabelReader () const
	Returns true if the nodeset can give back the node by its label.
void	readLabel (std::istream &is, Node &node) const
	Gives back the node by its label.
Protected Member Functions
virtual bool	header (const std::string &line)
	Gives back true when the SectionReader can process the section with the given header line.
virtual void	read (std::istream &is)
	Reader function of the section.

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Constructor & Destructor Documentation

NodeSetReader	(	LemonReader &	_reader,
		Graph &	_graph,
		const std::string &	_name = std::string(),
		const DefaultSkipper &	_skipper = DefaultSkipper()
	)			[inline]

Constructor for NodeSetReader. It creates the NodeSetReader and attach it into the given LemonReader. The nodeset reader will add the read nodes to the given Graph. The reader will read the section when the section_name and the _name are the same.

virtual ~NodeSetReader

(

)

[inline, virtual]

Destructor for NodeSetReader.

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Member Function Documentation

NodeSetReader& readNodeMap	(	std::string	label,
		Map &	map
	)			[inline]

Add a new node map reader command for the reader.

NodeSetReader& readNodeMap	(	std::string	label,
		Map &	map,
		const ItemReader &	ir = ItemReader()
	)			[inline]

Add a new node map reader command for the reader.

NodeSetReader& skipNodeMap	(	std::string	label,
		const ItemReader &	ir = ItemReader()
	)			[inline]

Add a new node map skipper command for the reader.

virtual bool header

(

const std::string &

line

)

[inline, protected, virtual]

It gives back true when the header line starts with @nodeset, and the header line's name and the nodeset's name are the same.

Implements SectionReader.

virtual void read

(

std::istream &

is

)

[inline, protected, virtual]

It reads the content of the section.

Implements SectionReader.

bool isLabelReader

(

)

const [inline]

Returns true if the nodeset can give back the node by its label. It is possible only if an "label" named map was read.

void readLabel	(	std::istream &	is,
		Node &	node
	)			const [inline]

It reads an id from the stream and gives back which node belongs to it. It is possible only if there was read an "label" named map.