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/// \brief DIMACS file format reader.
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namespace lemon {
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///@defgroup dimacs_group DIMACS format
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///\brief Read and write files in DIMACS format
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///
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///Tools to read a digraph from or write it to a file in DIMACS format
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///data
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///\ingroup io_group
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/// \addtogroup dimacs_group
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/// @{
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/// DIMACS file type descriptor.
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struct DimacsDescriptor
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{
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///File type enum
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NONE, MIN, MAX, SP, MAT
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};
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///The file type
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Type type;
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///The number of nodes on the graph
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///The number of nodes in the graph
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int nodeNum;
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///The number of edges on the graph
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///The number of edges in the graph
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int edgeNum;
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int lineShift;
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/// Constructor. Sets the type to NONE.
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DimacsDescriptor() : type(NONE) {}
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///Discover the type of a DIMACS file
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///It starts seeking the begining of the file for the problem type
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///and size info. The found date is returned in a special struct
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///and size info. The found data is returned in a special struct
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///that can be evaluated and passed to the appropriate reader
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///function.
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DimacsDescriptor dimacsType(std::istream& is)
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{
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}
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/// DIMACS min cost flow reader function.
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/// DIMACS minimum cost flow reader function.
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///
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/// This function reads a min cost flow instance from DIMACS format,
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/// i.e. from DIMACS files having a line starting with
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/// This function reads a minimum cost flow instance from DIMACS format,
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/// i.e. from a DIMACS file having a line starting with
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/// \code
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/// p min
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/// \endcode
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/// At the beginning, \c g is cleared by \c g.clear(). The supply
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}
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}
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}
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/// DIMACS max flow reader function.
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/// DIMACS maximum flow reader function.
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///
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/// This function reads a max flow instance from DIMACS format,
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/// i.e. from DIMACS files having a line starting with
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/// This function reads a maximum flow instance from DIMACS format,
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/// i.e. from a DIMACS file having a line starting with
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/// \code
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/// p max
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/// \endcode
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/// At the beginning, \c g is cleared by \c g.clear(). The arc
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/// DIMACS shortest path reader function.
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///
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/// This function reads a shortest path instance from DIMACS format,
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/// i.e. from DIMACS files having a line starting with
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/// i.e. from a DIMACS file having a line starting with
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/// \code
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/// p sp
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/// \endcode
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/// At the beginning, \c g is cleared by \c g.clear(). The arc
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/// lengths are written to \c lenght and \c s is set to the
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/// lengths are written to \c length and \c s is set to the
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/// source node.
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///
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/// If the file type was previously evaluated by dimacsType(), then
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/// the descriptor struct should be given by the \c dest parameter.
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