Where is function print defined?

[Francesco Casella]

Try this test model

model Test
  algorithm
  when sample(0,0.1) then
    print("It's now t = "+String(time));
  end when;
end Test;

The model compiles and runs, but it doesn't print anything anywhere. I wonder which print() function is linked here, I am not aware of any pre-defined function in Modelica with that name.

[Christoph <buchner@…>]

There is the Modelica.Utilities.Streams.print() predefined function, if I use that I see the output. No idea which print function gets called in your case, though.

[Martin Sjölund]

It's the MetaModelica print operator being used :)

[Martin Sjölund]

It seems to print to terminal just fine:

$ ./Test
It's now t = 0It's now t = 0.1It's now t = 0.2It's now t = 0.3It's now t = 0.4It's now t = 0.5It's now t = 0.6It's now t = 0.7It's now t = 0.8It's now t = 0.9It's now t = 1

[Francesco Casella]

Replying to sjoelund.se:

It seems to print to terminal just fine:

$ ./Test
It's now t = 0It's now t = 0.1It's now t = 0.2It's now t = 0.3It's now t = 0.4It's now t = 0.5It's now t = 0.6It's now t = 0.7It's now t = 0.8It's now t = 0.9It's now t = 1

It doesn't if I compile the model with OMEdit under both Linux and Windows and run it from there.

Long story: a colleague used print instead of Modelica.Utilities.Stream.print, got no ouptut and then got annoyed, because the compiler did not complain. I can see his point :)

Maybe when we are compiling Modelica code we should not be accepting MetaModelica stuff...

[Adrian Pop]

I think all output that the simulation generates should be visible somehow in the simulation window. Because we run the simulation executable with XML log, only XML tags are show in there.

I already talked with Adeel about this but we haven't yet found a solution.

[Adrian Pop]

Adeel, can one run the simulation without the XML logging? What is displayed in the output window if you do so?

[Rüdiger Franke]

Could possibly the XML logging use another stream than stdout, so that stdout remains reserved for the model?

Btw. what is the -port used for? Could XML logging go through this?

[Adeel Asghar]

-port is used for simulation progress bar.

[Adeel Asghar]

Replying to adrpo:

Adeel, can one run the simulation without the XML logging? What is displayed in the output window if you do so?

One can't run the simulation without XML logging. -logFormat=xml is hard coded.
I could make it user configurable but we have problems then e.g, making clickable error messages for transformational debugger.

[Rüdiger Franke]

Replying to adeas31:

-port is used for simulation progress bar.

Couldn't the progress bar also fed with XML messages that use the same port as XML log messages?

I agree that it makes no sense to make XML log messages configurable. Don't want to miss the structuring into groups anymore!

[Rüdiger Franke]

Working on this, could you also check the coloring of xml log messages?

At the moment we get red for: error, warning, debug; black for info. Shouldn't only error and debug be red?

[Lennart Ochel]

Replying to rfranke:

Shouldn't only error and debug be red?

Shouldn't only error messages be red? I think a debug message is more a special kind of notification than an error.

[Adeel Asghar]

This is quite easy to fix. Just decide what you want OR what is good in general.
From my side I just need to update the following code,
source:/OMEdit/OMEdit/OMEditGUI/Util/StringHandler.cpp@c9166ec#L1486

[Rüdiger Franke]

Replying to lochel:

Replying to rfranke:

Shouldn't only error and debug be red?

Shouldn't only error messages be red? I think a debug message is more a special kind of notification than an error.

I meant "errors and warnings" not "errors and debug". So far you use three colors: black, red and blue. Without extending the number of colors it should be:

• errors and warnings: red
• debug and info: black
• issued from OMEdit: blue (as it is today)

[Lennart Ochel]

@rfranke I agree and would say asserts should be red as well:

• errors, warnings and asserts: red
• debug and info: black
• issues from OMEdit: blue (as it is today)

[Adeel Asghar]

Sorry I mistakenly edited @rfranke's comment instead of replying on it :).
Fixed the printing problem in c9166ec/OMEdit and colors in dfe7b6f/OMEdit.