| Subject: | dashes in vertex names corrupt dot files |
Distribution: Graph-ReadWrite-1.07
Perl version: perl, v5.8.2 built for cygwin-thread-multi-64int
Operating system version: CYGWIN_NT-5.1 chaos 1.5.7(0.109/3/2) 2004-01-30, Windows XP Pro SP1
When a graph has vertices with names that contain '-' characters, the .dot file that results from $writer->write_graph($graph, $fh) contains syntax errors (from dot's perspective):
$ dot -Tgif test.dot >test.gif
Error: test.dot:8: parse error near line 8
context: >>> data- <<< category;
The dot file contains the lines:
digraph g
{
/* list of nodes */
...
data-category;
...
}
The problem may be solved by generating dot node names and displaying the vertex name through the label attribute. Hence the generated file would look like:
digraph g
{
/* list of nodes */
...
node4[label="data-category"];
...
}
If you like I can try and provide a patch.
Best regards,
Geert Jan Bex