Marker number

Alan Kilborn

print(notepad.allocateMarker(25))
None
print(notepad.allocateMarker(0))
None

What does that mean?

So the argument is numberRequested.

In the first case you are asking for 25, presumably contiguous, markers to be allocated. That’s way too many; that many aren’t going to be found.

In the second case you are asking for 0 markers to be allocated. That’s also pretty nonsensical.

If you want one marker, try notepad.allocateMarker(1). Each time you call that, you should get a new number returned.

(It appears you are thinking that you tell it which marker ID you want, at least from your usage of 25 – that isn’t how it works)

Paul Wormer

@Alan-Kilborn I expected a boolean upon return: if true markerNr is allocated; if false markerNr is free. That is not how it works apparently.

Alan Kilborn

@Paul-Wormer said in Marker number:

I expected a boolean upon return: if true markerNr is allocated; if false markerNr is free. That is not how it works apparently.

No, it isn’t, but…why do you care what the actual number is?
In your code, go with:

my_marker_id = notepad.allocateMarker(1)

and then wherever you were using a hard-coded-magic-number for a marker number, use my_marker_id instead:

    my_marker_id = notepad.allocateMarker(1)
    editor.markerDefine(my_marker_id, MARKERSYMBOL.CIRCLEPLUS)  
    nSymbol =  editor.markerSymbolDefined(my_marker_id)    
    editor.setMarginWidthN(marginNr, 16)               
    editor.setMarginTypeN(marginNr,  MARGINTYPE.SYMBOL)
    editor.setMarginMaskN(marginNr, 1<<my_marker_id )      
    editor.markerAdd(line-1,my_marker_id)

Note that this kind of code will allocate a new number each time you run the script. So, as you’re working on the script, you’ll probably find you’ll be out of markers fairly quickly. :-(

To solve that, you could do:

try:                                              # <-- important change!
    my_marker_id                                  # <-- important change!
except NameError:                                 # <-- important change!
    my_marker_id = notepad.allocateMarker(1)      # <-- important change!
editor.markerDefine(my_marker_id, MARKERSYMBOL.CIRCLEPLUS)  
nSymbol =  editor.markerSymbolDefined(my_marker_id)    
editor.setMarginWidthN(marginNr, 16)               
editor.setMarginTypeN(marginNr,  MARGINTYPE.SYMBOL)
editor.setMarginMaskN(marginNr, 1<<my_marker_id )      
editor.markerAdd(line-1,my_marker_id)

Paul Wormer

@Alan-Kilborn Yes, of course. It seems that the description of notepad.allocateMarker is wrong by stating --> bool. Instead it should state --> int. That put me off.

Alan Kilborn

@Paul-Wormer said in Marker number:

It seems that the description of notepad.allocateMarker is wrong by stating --> bool. Instead it should state --> int. That put me off.

Good catch!
See HERE.

Paul Wormer

@Alan-Kilborn Very good. Will Bruderstein listen, what is your experience?

Alan Kilborn

@Paul-Wormer said in Marker number:

Will Bruderstein listen, what is your experience?

Dave Bruderstein and @chcg (Christian) are active on the PythonScript project; maybe not “super” active, but active.

I’d think they’d listen, it’s just an easy documentation error.

Alan Kilborn

I wrote some test code:

for j in range(100):
    my_marker_id = notepad.allocateMarker(1)
    print(my_marker_id)
    if my_marker_id is None: break

and obtained as output:

Not sure where 0, 15, and 16 are…?

Paul Wormer

@Alan-Kilborn When I run my original script with markerNr (is marker_id) = 0 or 15, all is OK. The circleplus appears where you would expect it.

When I run your little script I get:

So during my session I claimed 0 thru 6 and 15. You probably claimed only 0 and 15. Apparently 16 and higher are taken by some plugins.

Alan Kilborn

@Paul-Wormer said in Marker number:

You probably claimed only 0 and 15. Apparently 16 and higher are taken by some plugins.

I ran on a virgin system with only the PythonScript plugin (aside from the plugins that come with Notepad++). I’m fairly confident (as I hinted before) that PS doesn’t claim any itself.