Your message dated Sat, 3 Jul 2010 23:57:28 -0500
with message-id <[email protected]>
and subject line Upstream won't fix
has caused the Debian Bug report #573494,
regarding read_graphviz() reads to much
to be marked as done.
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If this is not the case it is now your responsibility to reopen the
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--
573494: http://bugs.debian.org/cgi-bin/bugreport.cgi?bug=573494
Debian Bug Tracking System
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Package: libboost-graph1.42.0
Version: 1.42.0-3
boost::read_graphviz() is a function that reads a graph in graphviz dot
language from a stream. These graphs are of the form
[ strict ] (graph | digraph) [ ID ] '{' stmt_list '}'
e.g.
graph {
0;
1;
1 -- 0;
}
However boost::read_graphviz() does not stop reading at the terminating
}. Instead it goes on reading until EOF. This is bad when reading from a
stream that is not an ifstream from a file containing exactly one graph.
boost::read_graphviz() should stop reading after the terminating }.
Philipp
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--- Begin Message ---
Hi,
As noted in https://svn.boost.org/trac/boost/ticket/4030
The way the code is currently written (lexing with Boost.Regex) does
not lend itself to using istream_iterators or anything that would
easily allow the use of files directly. Boost.Regex and Xpressive
require bidirectional iterators, and the wrapper in Spirit can only
turn istream_iterators into forward iterators. There is a previous
version of the Graphviz parser that uses Spirit; you can enable it
by #defining BOOST_GRAPH_USE_SPIRIT_PARSER (in r60770 and above, so
please update). It has some bugs in parsing various parts of the
Graphviz grammar, but you are not likely to hit them.
-Steve
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