Invalid path missing segment orientation causes crash upon loading graph

[ASLeonard]

In the case of a malformed path in the gfa, specifically a segment missing its orientation, BandageNG will just instantly crash and exit (at least on macos).

This graph is able to reproduce the behaviour (or the path segment 1,2+). Changing to the valid 1+,2+ will load the graph successfully)

S       1       TAG
S       2       CAT
L       1       +       2       +       0M
P       foo     1+,2    0M

It seems like oriented_segment in io/gfa.cpp should handle invalid input and complain later, but this just crashes.

Best,
Alex

[asl]

Thanks for the report! Apparently, it seems that while there is a note in oriented_segment that segment name should be validated further on, this did not happen.

Should be fixed in #167 (and new snapshot will be available shortly)