Assertion when the source entity is unknown.

[GoogleCodeExporter]

msc {
  foo, bar;
  ---;

  # Version of mscgen used is 0.19, OS is Windows

  # This line (when uncommented) produces a nice "Unknown destination entity 'unknown'" error
  # bar -> unknown;

  # This line (when uncommented) produces
  #     Assertion failed: startCol >= 0 && startCol < (signed)MscGetNumEntities(m), file ../../../mscgen-0.19/src/main.c, line 382
  # error
  # unknown -> bar;
}

Original issue reported on code.google.com by alexei.a...@gmail.com on 4 Feb 2011 at 7:55

[GoogleCodeExporter]

Hi

I can confirm the issue under Linux as well with mscgen 0.19 (from Debian). On 
a more interesting note, mscgen 0.18 (also from Debian) appears to handle this 
correct. So I have assumed this to be a regression (hench the high priority).

~Niels

Original comment by NThykier@gmail.com on 4 Feb 2011 at 10:06

• Changed state: Accepted
• Added labels: Component-Logic, OpSys-All, Priority-High
• Removed labels: Priority-Medium

[GoogleCodeExporter]

Yep - it's a regression.  

The text wrapping code now looks up entity names earlier - before the nice 
checks have been done.  

I'm fixing this in SVN and also making it report the line number of the 
erroneous input too.

Original comment by Michael....@gmail.com on 6 Feb 2011 at 9:03

[GoogleCodeExporter]

This issue was closed by revision r175.

Original comment by Michael....@gmail.com on 6 Feb 2011 at 9:07

• Changed state: Fixed

[GoogleCodeExporter]

Hey

Great, I tried backporting it on top of the 0.19 and could not reproduce the 
issue anymore. Using that I have uploaded 0.19-3 to the Debian archive, which 
should soon reach unstable. :)

~Niels

Original comment by NThykier@gmail.com on 6 Feb 2011 at 11:23

• Changed state: Verified