Good observation.  I see exactly what it's doing now.

However, this is still a bug.  If one is using dot language files across different programs then the parser needs to interpret it the same.  Though the graph may retain its overall structure, the structure for that individual vertex has now changed.  This will adversely affect the way algorithms make entree into the graph.  For example, if vertex 0 once had a degree of two and now has a degree of 3 than the choices to move from 0 have changed from two choices to three.

thanks again for the response!

On 9/17/07, Krishna Roskin <krish@soe.ucsc.edu> wrote:

On 9/14/07, Brian Stadler <bdotstadler@gmail.com> wrote:
> My read_graphviz code:
>
> bool file;
> ifstream in(openfile.c_str(), ios::in);
> dynamic_properties dp;
> dp.property ("node_id", get(&ed_node::vertex_name, ug));  <--simple
> adjacency list with bundled properties being used
> file = read_graphviz(in, ug, dp, "node_id");
>
> Source graphviz file:
>
> strict graph  {
>     0 -- 3;
>     0 -- 4;
>     1 -- 3;
>     1 -- 4;
>     2 -- 3;
>     2 -- 4;
>     3 -- 4;
> }
>
> Output graphviz file:
>
> graph G {
> 0;
> 1;
> 2;
> 3;
> 4;
> 0--1 ;
> 0--2 ;
> 3--1 ;
> 3--2 ;
> 4--1 ;
> 4--2 ;
> 1--2 ;
> }