RhodeCode

\section migration-lgf LGF tools 

 - The \ref lgf-format "LGF file format" has changed,

   <tt>\@nodeset</tt> has changed to <tt>\@nodes</tt>,

   <tt>\@edgeset</tt> and <tt>\@uedgeset</tt> to <tt>\@arcs</tt> or

   <tt>\@edges</tt>, which become completely equivalents. The

   <tt>\@nodes</tt>, <tt>\@edges</tt> and <tt>\@uedges</tt> sections are

   removed from the format, the content of them should be

   the part of <tt>\@attributes</tt> section. The data fields in

   the sections must follow a strict format, they must be either character

   sequences without whitespaces or quoted strings.

 - The <tt>LemonReader</tt> and <tt>LemonWriter</tt> core interfaces

   are no longer available.

 - The implementation of the general section readers and writers has changed

   they are simple functors now. Beside the old

   stream based section handling, currently line oriented section

   reading and writing are also supported. In the

   section readers the lines must be counted manually. The sections

   should be read and written with the SectionWriter and SectionReader

   classes.

 - Instead of the item readers and writers, item converters should be

   used. The converters are functors, which map the type to

   std::string or std::string to the type. The converters for standard

   containers hasn't yet been implemented in the new LEMON. The converters

   can return strings in any format, because if it is necessary, the LGF

   writer and reader will quote and unquote the given value.

 - The DigraphReader and DigraphWriter can used similarly to the

   0.x series, however the <tt>read</tt> or <tt>write</tt> prefix of

   the member functions are removed.

 - The new LEMON supports the function like interface, the \c

   digraphReader and \c digraphWriter functions are more convenient than

   using the classes directly.