read_graphviz throws exception with file that dot program reads successfully

[anonymous]

program exhibiting behavior attached as boost-test.cpp. compiled on g++ (Debian 4.7.2-5) 4.7.2.

compile with "g++ -Wall -std=c++11 -O2 -lboost_system -lboost_graph -o boost-test boost-test.cpp"

dot file attached as test.dot, and pasted below: digraph "flow_graph" {

graph [ ]; node [

shape = "box"

]; edge [ ]; "0" [

label = "_WinMainCRTStartup:\lpush ebp\lmov ebp, esp\lsub esp, 18h\land esp, 0FFFFFFF0h\lmov [esp+18h+var_18], offset _main\lcall _cygwin_crt0\lmov [esp+18h+var_10], 0\lmov [esp+18h+var_14], 0\lmov [esp+18h+var_18], 0\lcall _cygwin_premain0\lmov [esp+18h+var_10], 0\lmov [esp+18h+var_14], 0\lmov [esp+18h+var_18], 0\lcall _cygwin_premain1\lmov [esp+18h+var_10], 0\lmov [esp+18h+var_14], 0\lmov [esp+18h+var_18], 0\lcall _cygwin_premain2\lmov [esp+18h+var_10], 0\lmov [esp+18h+var_14], 0\lmov [esp+18h+var_18], 0\lcall _cygwin_premain3\lleave\lretn\l"

];

node 0 }

[anonymous]

dot file which yields exception

[anonymous]

exception message is:

Invalid start token for statement (token is "<eof> ")

[anonymous]

the comment at boost-test.cpp:5 is incorrect- test_dot was not null-terminated. (std::string was constructed from it using begin and end iterators).

[anonymous]

from some experimentation, it appears that deleting line 12 in test.dot (i.e. the line containing a comment) causes the exception to not be thrown from read_graphviz.

[Jeremiah Willcock]

(In [84725]) Changed comments to be non-greedy; fixes #8681

[Jeremiah Willcock]

I fixed that issue. Your code still breaks because you do not define a "shape" property in your dynamic_properties object, but the file appears to parse correctly.

[anonymous]

thank you!